EP3064329A1 - Manually operated working device having a guide rail - Google Patents
Manually operated working device having a guide rail Download PDFInfo
- Publication number
- EP3064329A1 EP3064329A1 EP16000498.2A EP16000498A EP3064329A1 EP 3064329 A1 EP3064329 A1 EP 3064329A1 EP 16000498 A EP16000498 A EP 16000498A EP 3064329 A1 EP3064329 A1 EP 3064329A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid channel
- guide rail
- main fluid
- main
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
- B28D1/082—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws consisting of chain saws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/02—Chain saws equipped with guide bar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/02—Chain saws equipped with guide bar
- B27B17/025—Composite guide bars, e.g. laminated, multisectioned; Guide bars of diverse material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/12—Lubricating devices specially designed for chain saws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/08—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with saw-blades of endless cutter-type, e.g. chain saws, i.e. saw chains, strap saws
- B28D1/088—Sawing in situ, e.g. stones from rocks, grooves in walls
Definitions
- the invention relates to a hand-held implement of the type specified in the preamble of claim 1 and a guide rail for a hand-held implement of the type specified in the preamble of claim 16.
- the guide rail consists of two side plates and an intermediate element which delimit the main water channel.
- the main water channel has water outlets in the area of the Umlenksterns and on the guide groove.
- the invention has for its object to provide a hand-held implement of the generic type, which has a low fluid consumption and low wear of the chain.
- the invention has for its object to provide a guide rail for a hand-held implement of the generic type, which allows low fluid consumption and low wear of the chain.
- the side elements at least partially delimit a main fluid channel and a secondary fluid channel, the secondary fluid channel having at least one first auxiliary fluid outlet opening into the deflection region and at least one second auxiliary fluid outlet opening into the guide groove on a second longitudinal side of the guide rail.
- the main fluid channel and the secondary fluid channel are advantageously designed and connected to a fluid supply such that more fluid flows through the main fluid channel during operation than through the secondary fluid channel.
- different amounts of fluid can be supplied to different areas of the guide rail in a simple manner.
- the implement may be a chainsaw and the chain may be a saw chain.
- the saw chain has cutting teeth for machining a workpiece, which is advantageously made of wood.
- the fluid delivered to the saw chain through the fluid channels is in particular oil.
- the implement is a rock cutter, and the chain is used for cutting mineral and / or metallic materials.
- the chain has cutting elements that grind the workpiece.
- the cutting elements are advantageous grinding elements containing diamond particles.
- the secondary fluid channel is fluidly connected to the main fluid channel in such a way that, during operation, part of the fluid flowing in the main fluid channel flows from the main fluid channel into the secondary fluid channel.
- the secondary fluid channel can be supplied with fluid via the main fluid channel without requiring a separate supply of the secondary fluid channel.
- more than half of the fluid volume flow entering the main fluid passageway expediently flows to the main fluid outlets, and less than half of the fluid volume flow entering the main fluid passageway flows via the auxiliary fluid passageway to the auxiliary fluid outlets.
- most of the water is discharged through the main fluid outlets, purposely flushing the chain at the main fluid outlets.
- the chain is flushed in the area of the auxiliary fluid outlets with the smaller part of the water. In this area, the chain is less stressed and / or less heavily polluted, so that the smaller amount of water is sufficient.
- a separating web runs directly between the main fluid channel and the secondary fluid channel.
- the divider separates the main fluid channel and the secondary fluid channel and allows a good management of the fluid, in particular with low pressure drop, within the respective fluid channels. As a result, the fluid is easily and safely directed to all provided fluid outlets.
- the divider forms a barrier running transversely to the plane of the guide rail between the main fluid channel and the secondary fluid channel. As a result, both channels can extend in the longitudinal section over the entire width of the guide rail between the side elements.
- the longitudinal section is a section of the guide rail extending in the longitudinal direction and delimited by two planes perpendicular to the longitudinal direction.
- a section of the main fluid channel is essentially mirror-symmetrical relative to a section of the secondary fluid channel with respect to a center plane, wherein the center plane contains a longitudinal central axis of the guide rail and is perpendicular to the plane of the guide rail.
- the mirror-symmetric design results in a simple structure.
- the different amounts of fluid flowing through the main fluid passage and the sub fluid passage during operation result from the indirect supply of the subfluid passage from the main fluid passage and the throttling of the communication of the passageways.
- a different geometry of the channels is not provided.
- the first side member at least partially abuts the second side member, and the side members define the main fluid channel and the sub fluid channel.
- the side elements lie completely against each other. This allows the Guide rail can be formed only by two side elements.
- an intermediate element is arranged between the side elements, and the main fluid channel and the secondary fluid channel are each limited at least partially by the intermediate element.
- the production of the guide rail is particularly simple.
- the side elements and the intermediate element can each be designed as plates.
- the fluid channels may for example be punched out of the plates. In this case, punching for the fluid channels are particularly advantageous provided only in the intermediate element.
- the side elements is advantageous only one punched to connect the fluid channel with the housing-side water connection available.
- the side elements and the intermediate element are connected to each other, for example by spot welding.
- the intermediate element has at least one first opening, whose longitudinal sides delimit the main fluid channel, and at least one second opening, the longitudinal sides of which bound the secondary fluid channel. Openings in the intermediate element are easy to produce, for example by punching. An opening can be made with almost any contour, so that the fluid channels can be optimally formed fluidically.
- the main fluid inlet and the second main fluid outlet are arranged on different sides of a median plane of the guide rail, the median plane containing a longitudinal central axis of the guide rail and being perpendicular to the plane of the guide rail.
- the main fluid inlet with respect to the implement is arranged in the usual parking position above the center plane. This allows the guide rail on the housing structurally simple clamped and at the same time the main fluid inlet can be structurally easily supplied with water.
- the chain is arranged circumferentially around the guide rail, wherein in operation a first run of the chain runs on the deflection region and a second run the chain runs away from the deflection region, and wherein the second main fluid outlet is arranged on the same side of the median plane as the second strand of the chain.
- the second strand of the chain is the strand that usually performs the cut.
- the main part of the fluid is thereby discharged below the center plane and thus fed to the part of the chain that has to be rinsed as well as possible.
- a sufficient flushing at the deflection region is ensured by the first main fluid outlet opening out at the deflection region.
- the sub-fluid channel includes a sub-fluid inlet disposed in the gripping region, and the sub-fluid inlet and the main fluid inlet are disposed on different sides of the mid-plane.
- the auxiliary fluid inlet is advantageously not connected during operation with a water supply, so that no fluid is supplied into the secondary fluid inlet.
- the auxiliary fluid channel is advantageously supplied with fluid exclusively via the main fluid channel.
- the second auxiliary fluid outlet and the second main fluid outlet are expediently arranged on different sides of the median plane. In particular, the inlets and outlets are arranged symmetrically to the median plane.
- the main fluid channel and the secondary fluid channel intersect at a first intersection, the main fluid channel being separated from the secondary fluid channel at the first intersection.
- the main fluid channel and the secondary fluid channel intersect at a second intersection, the main fluid channel being separated from the secondary fluid channel at the second intersection.
- the guide rail is formed reversible.
- the guide rail can be easily mounted. The operator does not have to pay attention to the position of the guide rail during installation.
- the side elements at least partially define a secondary fluid channel, the secondary fluid channel having at least one first auxiliary fluid outlet opening into the deflection region and at least one second auxiliary fluid outlet opening into the guide groove on a second longitudinal side of the guide rail.
- the Fig. 1 shows an exemplary embodiment of a hand-held implement a rock cutter 1, which is constructed similar to a motor chain saw.
- the rock cutter 1 has a housing 2, in which a drive motor 3 is arranged.
- the drive motor 2 is designed as an internal combustion engine, in particular as a mixture-lubricated internal combustion engine, and has an exhaust muffler 8, via which exhaust gases escape into the environment.
- the drive motor 2 can also be an electric motor, which can be supplied with energy, for example via a power cable or a battery, in particular an accumulator.
- a guide rail 4 is fixed, which in Fig. 1 is shown schematically.
- a chain 5 is arranged circumferentially, which is driven by the drive motor 3.
- the chain 5 has a plurality of cutting elements 6.
- the cutting elements 6 are suitable for cutting through metal or mineral materials, such as rock, concrete, or the like.
- the hand-held implement can also be a chainsaw, on whose guide rail a saw chain with cutting teeth is arranged.
- the chain 5 is driven by a drive pinion in a running direction 45.
- the drive pinion is covered by a fixed to the housing 2 sprocket cover 7.
- the chain 5 has a first run 46, which in operation from the drive pinion to a deflection region 20 of the guide rail 4 (FIG. Fig. 2 ) and a second run 47, which moves from the deflection region 20 to the drive pinion.
- a rear handle 9 and a handle tube 10 are fixed on the housing 2, a rear handle 9 and a handle tube 10 are fixed.
- the rear handle 9 is arranged on the side facing away from the exhaust muffler 8 and a housing front side 11 side of the housing.
- the handle tube 10 spans the housing 2 at a distance.
- a hand-held on the housing 2 hand guard 12 is arranged in the area between the handle tube 10 and the guide rail 4, a hand-held on the housing 2 hand guard 12 is arranged.
- the chain 5 is rinsed with a fluid, in the exemplary embodiment with water.
- a water pipe 13 is provided, which is to be connected via a water connection 14 with a device for supplying water.
- the water connection 14 is arranged in the rear region of the rear handle 9.
- the water pipe 13 leads to a water outlet not visible in the figures.
- the water outlet is arranged on the housing 2 under the sprocket cover 7 and covered by the sprocket cover 7 and the guide rail 4.
- At the water outlet is an in Fig. 4 shown main fluid inlet 15 on the guide rail 4 at. The water from the water outlet enters the guide rail 4 via the main fluid inlet 15.
- the water is guided in channels within the guide rail 4 and exits at longitudinal sides 16, 17 and at the deflection region 20 of the guide rail 4.
- the water rinses the chain 5.
- the water binds the dust produced during cutting and transports the material away.
- the water cools the chain 5.
- the water can also be provided with additives, so that the water lubricates the chain 5, for example.
- water and oil can be provided as a fluid. The use of oil is particularly suitable when the hand-held implement is designed as a motor chain saw and the chain 5 is a saw chain.
- FIGS. 2 and 3 show the guide rail 4 in the disassembled state.
- the guide rail 4 has a guide groove 19 in which the chain 5 (FIG. Fig. 1 ) is guided.
- a Umlenkstern 21 is rotatably mounted in the deflection region 20, the chain 5 is deflected during operation.
- the chain 5 is guided in the Umlenkstern 21.
- the guide rail 4 has a clamping area 22 at the other end of the guide rail 4, the guide rail 4 has a clamping area 22.
- the clamping area 22 is for fixing the guide rail 4 to the housing 2 (FIG. Fig. 1 ) intended.
- the main fluid inlet 15 (FIG. Fig. 4 ) arranged in the clamping region 22 arranged.
- the guide rail 4 comprises a first side member 23 and a second side member 24. Between the side members 23, 24, an intermediate element 25 is arranged. As the FIGS. 4 to 7 show, the side members 23, 24 and the intermediate member 25 define a main fluid channel 26 and a secondary fluid channel 27.
- the intermediate element 25 has a first opening, whose in 4 and 5 shown side walls 29, 30 define the main fluid channel 26 in sections.
- the Intermediate member 25 has a second opening, the side walls 31, 32 limit the secondary fluid channel 27 in sections.
- the main fluid inlet 15 is in the image plane in Fig. 4 arranged at the back.
- the main fluid inlet 15 is formed as an opening, for example as a bore, recess or the like., In the first side member 23.
- water is introduced into the main fluid channel 26 via the main fluid inlet 15.
- the main fluid channel 26 has a first main fluid outlet 33 which opens in the deflection region 20.
- the main fluid channel 26 has a second main fluid outlet 34 which opens into the guide groove 19 on the first longitudinal side 16 of the guide rail 4.
- three second main fluid outlets 34 are provided, each in the running direction of the chain 5 (FIG. Fig. 1 ) have a distance from each other.
- the fluid outlets 34, 36 are approximately evenly distributed over almost the entire length of the guide rail 4. The water exits the main fluid outlets 33, 34 during operation and becomes the chain 5 (FIG. Fig. 1 ) fed continuously.
- the main fluid channel 26 and the secondary fluid channel 27 are approximately symmetrical, in particular approximately mirror-symmetrical, with respect to a center plane 37.
- the median plane 37 contains a longitudinal central axis 38 of the guide rail 4 and is perpendicular to the plane of the guide rail 4 Fig. 4 in the image plane in front of the clamping area 22, a secondary fluid inlet 28 is arranged, which opens an opening to the secondary fluid channel 27.
- the auxiliary fluid inlet 28 is formed as a bore, recess or the like. In the second side member 24. In normal operation, no water is introduced into the secondary fluid channel 27 via the secondary fluid inlet 28.
- the auxiliary fluid inlet 28 is required for the reversibility of the guide rail 4, because after the turning of the guide rail 4, the secondary fluid inlet 28 abuts the housing-side water outlet and water is supplied into the secondary fluid channel 27 via the secondary fluid inlet 28, in which case the main fluid inlet 15 no water is supplied.
- the housing-side water outlet is the water outlet formed on the housing 2 of the rock cutter 1, out of the water the housing 2 in the guide rail 4 passes.
- the secondary fluid channel 27 has at least one first auxiliary fluid outlet 35 which opens in the deflection region 20.
- the auxiliary fluid channel 27 has at least one second auxiliary fluid outlet 36 which opens into the guide groove 19 on the second longitudinal side 17 of the guide rail 4.
- three second Volunteerfluidauslässe 36 are provided, each in the running direction of the chain 5 Fig. 1 ) have a distance from each other.
- a further auxiliary fluid outlet may be arranged adjacent to the auxiliary fluid inlet 28 adjacent to the auxiliary fluid inlet 28, a further auxiliary fluid outlet (not shown in the figures) may be arranged adjacent to the auxiliary fluid inlet 28 adjacent to the auxiliary fluid inlet 28, a further auxiliary fluid outlet (not shown in the figures) may be arranged.
- the main fluid channel 26 extends downstream of the main fluid inlet 15 initially curved, in particular approximately S-shaped, wherein the fluid in this section of the main fluid channel 26 multiple, in the embodiment at least two times the main flow direction changes.
- the curved course of the main fluid channel 26 extends approximately from the main fluid inlet 15 to the point at which the main fluid channel 26 intersects the midplane 37.
- the main fluid channel 26 comprises a delivery channel 43 and a plurality of branch channels 44.
- the delivery channel 43 runs approximately parallel to the center plane 37.
- the branch channels 44 branch off from the delivery channel 43.
- the branch channels 44 terminate at the Hauptfluidauslässen 34.
- the branch channels 44 extend to the longitudinal central axis 38 in the direction of the deflection region 20 inclined, so that there is an approximately herringbone channel course.
- the flow cross-section of each branch channel 44 tapers in the flow direction. Downstream of the longitudinal section 39, the distance between the main fluid channel 26 and center plane 37 increases and then remains approximately constant. Further downstream, the flow cross section of the main fluid channel 26 tapers. Finally, the main fluid channel 26 opens into the first main fluid outlet 33.
- the secondary fluid channel 27 is formed substantially symmetrically to the main fluid channel 26, so that the above to the main fluid channel 26 said accordingly for the Secondary channel 27 applies.
- the secondary channel 27 also has a delivery channel 43 and branch channels 44.
- a separating web 40 extends between the main fluid channel 26 and the secondary fluid channel 27.
- the separating web 40 is formed in the intermediate element 25. Both side elements 23, 24 rest at least partially on the separating web 40.
- the conveying channel 43 of the main fluid channel 26 and the conveying channel 43 of the secondary fluid channel 27 run parallel to one another.
- height a of the divider 40 is constant in the longitudinal section 39.
- the divider 40 has a width b, which corresponds to the width of the intermediate element 25.
- the main fluid channel 26 is fluidly connected to the secondary fluid channel 27 such that, during operation, a portion of the fluid flowing in the main fluid channel 26 flows from the main fluid channel 26 into the secondary fluid channel 27.
- the water transfer takes place in particular in the area in front of the separating web 40, that is, in front of the longitudinal section 39. But also in the area of the separating web 40 and in the area after the separating web 40, a water transfer can take place.
- the side elements 23, 24 and the intermediate element 25 are not sealing against one another.
- this is implemented, for example, by spot welding of the elements 23, 24, 25, wherein the fluidic connection is formed due to the leakage between the non-sealingly connected to the intermediate element 25 side elements 23, 24.
- the leakage is given in the exemplary embodiment at the points at which the main fluid channel 26 and the secondary fluid channel 27 extend to the same side element 23, 24.
- only the main fluid channel 26 is supplied with water via the main fluid inlet 15.
- the secondary fluid channel 27 is not connected to a housing-side water supply. Nevertheless, water can enter from the main fluid channel 26 into the secondary fluid channel 27 via the fluidic connection of the two channels 26, 27 and emerge from there the secondary fluid outlets 35, 36.
- more than that flows during operation Half of the volume of fluid entering the main fluid passage 26 to the main fluid outlets 33, 34, and less than half of the fluid volume flow entering the main fluid passage 26, flows via the auxiliary fluid passage 27 to the auxiliary fluid outlets 35, 36.
- the auxiliary fluid outlets 35, 36 and the main fluid outlets 33, 34 are arranged on different sides of the center plane 37 and the main fluid inlet 25 and the auxiliary fluid inlet 28 on different sides of the center plane 37. Due to the arrangement of the inlets 15, 28 and outlets 33, 34, 35, 36 on different sides of the center plane 37, the main fluid channel 26 and the secondary fluid channel 27 intersect at a first intersection 41.
- the first intersection 41 is approximately in a range between the chucking portion 22 and the longitudinal portion 39 are arranged. At the first crossing point 41, the channels 26, 27 run separately from each other, as in particular in Fig. 6 is clearly recognizable.
- the main fluid inlet 15 and the main fluid outlets 33, 34 are arranged on different sides of the center plane 37 of the guide rail 4.
- a first run 46 of the chain 5 runs ( Fig. 1 ) to the deflection region 21, and a second run 47 of the chain 5 (FIG. Fig. 1 ) runs away from the deflection region 21.
- the main fluid outlets 33, 34 are arranged on the same side of the center plane 37 as the second run 47 of the chain 5 (FIG. Fig. 1 ). Due to the arrangement of the main fluid outlets 33, 34 and the fact that most of the water leaves the main fluid outlets 33, 34, the return part of the chain 5 (FIG. Fig.
- the channel cross section of the fluid channels 26, 27 changes at different locations of the fluid channels 26, 27.
- the channel cross section of each of the fluid channels 26, 27 is at the first intersection 41 (FIG. Fig. 6 ) smaller than the channel cross-section of the corresponding fluid channel 26, 27 at a location downstream of the first intersection 41 ( Fig. 7 ).
- a partition wall 42 formed between the fluid channels 26, 27 is provided on the intermediate element 25.
- the main fluid channel 26 is bounded by the first side member 23 and the intermediate member 25, and at the first intersection 41, the sub fluid channel 26 is bounded by the second side member 24 and the intermediate member 25.
- Fig. 7 shows that the fluid channels 26, 27 downstream of the first crossing point 41 are each bounded by both the first side member 23, the second side member 24 and the intermediate member 25. Upstream of the first intersection 41, the fluid channels 26, 27 are designed accordingly.
- Fig. 8 shows the arrangement of the second Maufluidauslässe 36 on the guide rail 4.
- the distances a 1 , a 2 of each two adjacent second Maufluidauslässen 36 are different in the embodiment.
- the distance a 1 of the two second Maufluidauslässe 36, which are farther back, ie closer to the clamping area 22, is smaller than the distance a 2 of the two second Maufluidauslässe 36, which are further forward, so closer to the deflection 21.
- the Fig. 9 to 12 show a further embodiment of a side member 123 for a guide rail 104 (FIG. FIGS. 11 and 12 ).
- the guide rail 104 includes, like the FIGS. 11 and 12 show, the side member 123 and the side member 24.
- the same reference numerals designate corresponding elements in all figures.
- This in Fig. 9 to 12 shown side member 123 substantially corresponds to that in the Fig. 2 to 8 shown first side member 23.
- the intermediate element is integrally formed.
- An intermediate element 25 as a separate component of the guide rail can be omitted in this embodiment.
- the side member 123 abuts at least partially on the second side member 24.
- the side members 123 and 24 define the main fluid channel 26 and the subfluid channel 27 (FIGS. Fig. 9 ).
- Fig. 13 shows a further embodiment of an intermediate element 225, which substantially in the Fig. 2 to 8 shown intermediate element 25 corresponds.
- Fluid channels 226 and 227 are formed on the intermediate element 225.
- An essential difference to the intermediate element 25 is that at least one connecting channel 260 is formed in the region of a longitudinal section 239 at a separating web 240 arranged between the fluid channels 226, 227.
- the connection channel 260 connects the two fluid channels 226, 227 fluidically with one another, so that during operation an exchange of fluid from the main fluid channel 226 takes place via the connection channel 260 into the secondary fluid channel 227.
- a total of three connection channels 260 are provided.
- the connecting channel 260 may also be provided at least one throttle element, not shown, which directs a portion of the fluid flowing in the main fluid passage 226 fluid flow into the secondary fluid passage 225.
- the throttle element acts in this case in both mounting positions of the guide rail 4.
- the cross-sections of the Maufluidauslässe 35, 36 may be smaller than the cross-sections of the Hauptfluidauslässe 33, 34. In this embodiment, a reversibility of the guide rail 4 is not given.
- FIGS. 14 and 15 show a further embodiment of a guide rail 304, which in large parts of the in the Fig. 2 to 8 shown guide rail 4 corresponds.
- the main difference of in FIGS. 14 and 15 shown guide rail 304 in the Fig. 2 to 8 shown guide rail 4 is that at the in the FIG. 14 and 15 shown guide rail 304 a main fluid channel 326 and a secondary fluid channel 327 at a first intersection 341 and at a second intersection point 361 intersect.
- the main fluid channel 326 is separated from the secondary fluid channel 327.
- the main fluid channel 326 comprises a first main fluid outlet 333 which opens in a deflection region 320 and is arranged downstream of the second intersection point 361.
- the main fluid outlet 333 is disposed on the same side of a midplane 337 as a main fluid inlet 315. Water leaking through the main fluid outlet 333 becomes the chain 5 (FIG. Fig. 1 ) in the running direction 45 ( Fig. 1 ) is supplied before passing the deflection region 320.
- the main fluid channel 326 downstream of the second crossing point 361 has a on the second longitudinal side 17 (FIG. Fig. 3 ) of the guide rail 304 into the guide groove 19 (FIG. Fig. 3 ) opening third main fluid outlet 362.
- the third main fluid outlet 362 is located on the same side of the mid-plane 337 as the main fluid inlet 315.
- a first sub-fluid outlet 335, a third sub-fluid outlet 363, and a sub-fluid inlet 328 are located thereon Side of the median plane 337.
- FIGS. 16 and 17 1 is a schematic view of the course of the water 70, 370 in the main fluid channel 26, 326 of the guide rail 4, 304 during operation of the rock cutter 1 (FIG. Fig. 1 ) visualize.
- FIGS. 16 and 17 For a better overview was in the FIGS. 16 and 17 the passage of water 70, 370 from the main fluid channel 26, 326 into the secondary fluid channel 27, 327 and the flow of water 70, 370 in the secondary fluid channel 27, 327 not shown.
- Fig. 16 shows the guide rail 4 in the embodiment of the Fig. 2 to 8 in which the main fluid channel 26 and the secondary fluid channel 27 intersect at the first intersection 41.
- the water 70 enters the main fluid channel 26 via the main fluid inlet 15. Up to about the first intersection 41, the water 70 flows above the center plane 37, and from about the first intersection 41 flows The water 70 exits the main fluid channel 26 at the first main fluid outlet 33 and at the second main fluid outlets 34 below the midplane 37.
- Fig. 17 shows the guide rail 304 in the embodiment of the FIGS. 14 and 15 in which the main fluid passage 326 and the sub fluid passage 327 intersect at the first intersection 341 and the second intersection 361, respectively.
- the water 370 enters the main fluid channel 326 via the main fluid inlet 315. Up to about the first intersection 341, the water flows 370 above the median plane 337, approximately after the first intersection 341 to about the second intersection 361, the water flows 370 below the median plane 337, and approximately from the second intersection 361, the water flows 370 above the median plane 337.
- the water 370 exits the main fluid passage 326 at the second main fluid outlets 334 below the midplane 337.
- the water 370 exits the main fluid passage 326 at the first main fluid outlet 333 and the third main fluid outlet 362 above the midplane 337.
- Fig. 18 shows the design of the chain 5 in detail.
- the chain 5 is composed of central links 501, 502 which are interconnected via lateral links 503. All members of the chain 5 are hinged together via connecting bolts 504.
- first central connecting links 501 and second central connecting links 502 alternate.
- the first central links 501 are formed as drive links and have a drive lug 506 which fits into the guide rail 4 (FIG. Fig. 1 ) formed guide groove 19 ( Fig. 3 protrudes.
- the first central links 501 are driven by the drive pinion.
- each drive lug 506 has a recess 507 which is shaped so that in the guide rail 4 (FIG. Fig. 1 ) collecting mud and dirt from the drive lugs 506 is conveyed.
- the driving lugs 506 also have a bore 508, which for better distribution of the water 70, 370 (FIG. FIGS. 16 and 17 ) serves.
- the lateral connecting members 503 each carry cutting segments 511.
- each cutting segment 511 with two adjacent in the direction of 45 lateral links 503 is firmly connected, so that the cutting segments 511 project beyond the chain 5 in its entire width and the central links 501 and 502 partially overlap ,
- the same reference numerals correspond to the same components.
- the individual embodiments can be suitably combined with each other.
- openings may be provided between the fluid channels in all embodiments. In all embodiments, further intersections of the fluid channels may be provided.
Abstract
Die Erfindung betrifft ein handgeführtes Arbeitsgerät mit einer Führungsschiene (4, 104, 304). Die Führungsschiene (4, 104, 304) besitzt eine Führungsnut (19), in der eine Kette (5) geführt ist. Die Führungsschiene (4, 104, 304) besitzt an einem Ende einen Umlenkbereich (20) zum Umlenken der Kette (5) und am anderen Ende einen Einspannbereich (22) zur Fixierung an einem Gehäuse (2) des Arbeitsgeräts. Die Führungsschiene (4, 104, 304) umfasst ein erstes Seitenelement (23, 123) und ein zweites Seitenelement (24), die einen Hauptfluidkanal (26, 226, 326) mindestens teilweise begrenzen. Der Hauptfluidkanal (26, 226, 326) umfasst im Einspannbereich (22) einen an dem ersten Seitenelement (23, 123) angeordneten Hauptfluideinlass (15), wobei der Hauptfluidkanal (26, 226, 326) mindestens einen im Umlenkbereich (20) mündenden ersten Hauptfluidauslass (33) und mindestens einen an einer ersten Längsseite (16) der Führungsschiene (4, 104, 304) in die Führungsnut (19) mündenden zweiten Hauptfluidauslass (34) aufweist. Die Seitenelemente (23, 123, 24) begrenzen einen Nebenfluidkanal (27, 227, 327) mindestens teilweise. Die im Betrieb durch den Hauptfluidkanal (26, 226, 326) strömende Wassermenge ist größer als die durch den Nebenfluidkanal (27, 227, 327) strömende Fluidmenge. Der Nebenfluidkanal (27, 227, 327) weist mindestens einen im Umlenkbereich (20) mündenden ersten Nebenfluidauslass (35) und mindestens einen an einer zweiten Längsseite (17) der Führungsschiene (4, 104, 304) in die Führungsnut (19) mündenden zweiten Nebenfluidauslass (36) auf.The invention relates to a hand-held implement with a guide rail (4, 104, 304). The guide rail (4, 104, 304) has a guide groove (19) in which a chain (5) is guided. The guide rail (4, 104, 304) has at one end a deflection region (20) for deflecting the chain (5) and at the other end a clamping region (22) for fixing to a housing (2) of the working device. The guide rail (4, 104, 304) includes a first side member (23, 123) and a second side member (24) that at least partially define a main fluid channel (26, 226, 326). The main fluid channel (26, 226, 326) comprises in the clamping region (22) a main fluid inlet (15) arranged on the first side element (23, 123), wherein the main fluid channel (26, 226, 326) comprises at least one first opening in the deflection region (20) Hauptfluidauslass (33) and at least one on a first longitudinal side (16) of the guide rail (4, 104, 304) in the guide groove (19) opening out the second main fluid outlet (34). The side members (23, 123, 24) at least partially define a secondary fluid channel (27, 227, 327). The amount of water flowing through the main fluid channel (26, 226, 326) during operation is greater than the amount of fluid flowing through the subfluid channel (27, 227, 327). The auxiliary fluid channel (27, 227, 327) has at least one first auxiliary fluid outlet (35) opening in the deflection region (20) and at least one second opening on a second longitudinal side (17) of the guide rail (4, 104, 304) into the guide groove (19) Nebenfluidauslass (36) on.
Description
Die Erfindung betrifft ein handgeführtes Arbeitsgerät der im Oberbegriff des Anspruchs 1 angegebenen Gattung und eine Führungsschiene für ein handgeführtes Arbeitsgerät der im Oberbegriff des Anspruchs 16 angegebenen Gattung.The invention relates to a hand-held implement of the type specified in the preamble of claim 1 and a guide rail for a hand-held implement of the type specified in the preamble of
Insbesondere beim Schneiden von mineralischen oder metallischen Werkstoffen mit einem handgeführten Arbeitsgerät mit einer Kette, beispielsweise ein Gesteinschneider, führt der beim Schneiden entstehende abrasive Schlamm zu einem erhöhten Verschleiß an den Gelenken der Kette, was zu einer Kettenlängung führt. Um den Verschleiß zu reduzieren, ist bei den betreffenden handgeführten Arbeitsgeräten üblicherweise vorgesehen, im Betrieb die Gelenke der Kette mit Wasser zu spülen. Hierfür ist ein Wasserkanal in der Führungsschiene vorgesehen, der Wasser zur Längsseite der Führungsschiene in den Bereich der Führungsnut und zum Umlenkbereich führt. Von dort umspült das Wasser die Gelenke der Kette.In particular, when cutting mineral or metallic materials with a hand-held implement with a chain, such as a rock cutter, the resulting during cutting abrasive mud leads to increased wear on the joints of the chain, resulting in chain elongation. In order to reduce wear, it is usually provided in the relevant hand-held implements, to flush in operation, the joints of the chain with water. For this purpose, a water channel is provided in the guide rail, which leads water to the longitudinal side of the guide rail in the region of the guide and the deflection. From there, the water flows around the joints of the chain.
Aus der
Es hat sich gezeigt, dass zur optimalen Spülung der Sägekette vergleichsweise viel Wasser benötigt wird.It has been shown that a comparatively large amount of water is needed for optimum rinsing of the saw chain.
Der Erfindung liegt die Aufgabe zugrunde, ein handgeführtes Arbeitsgerät der gattungsgemäßen Art zu schaffen, das einen geringen Fluidverbrauch und einen geringen Verschleiß der Kette besitzt.The invention has for its object to provide a hand-held implement of the generic type, which has a low fluid consumption and low wear of the chain.
Diese Aufgabe wird durch ein handgeführtes Arbeitsgerät mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a hand-held implement with the features of claim 1.
Ferner liegt der Erfindung die Aufgabe zugrunde, eine Führungsschiene für ein handgeführtes Arbeitsgerät der gattungsgemäßen Art zu schaffen, die einen geringen Fluidverbrauch und einen geringen Verschleiß der Kette ermöglicht.Furthermore, the invention has for its object to provide a guide rail for a hand-held implement of the generic type, which allows low fluid consumption and low wear of the chain.
Diese Aufgabe wird durch eine Führungsschiene mit den Merkmalen des Anspruchs 16 gelöst.This object is achieved by a guide rail with the features of
Für das Arbeitsgerät ist vorgesehen, dass die Seitenelemente einen Hauptfluidkanal und einen Nebenfluidkanal mindestens teilweise begrenzen, wobei der Nebenfluidkanal mindestens einen im Umlenkbereich mündenden ersten Nebenfluidauslass und mindestens einen an einer zweiten Längsseite der Führungsschiene in die Führungsnut mündenden zweiten Nebenfluidauslass aufweist. Durch die Verwendung von mindestens zwei Kanälen, nämlich dem Hauptfluidkanal und dem Nebenfluidkanal, kann das zur Spülung der Kette vorgesehene Fluid, insbesondere Wasser, einfach und gezielt an die vorgesehene Stelle geleitet werden. Ein unnötiges Austreten von Wasser an Stellen, die zur Spülung der Kette nicht wesentlich beitragen, kann unterbunden werden. Dabei sind der Hauptfluidkanal und der Nebenfluidkanal vorteilhaft so gestaltet und mit einer Fluidversorgung verbunden, dass im Betrieb mehr Fluid durch den Hauptfluidkanal strömt als durch den Nebenfluidkanal. Dadurch können auf einfache Weise unterschiedliche Fluidmengen in unterschiedliche Bereiche der Führungsschiene zugeführt werden.For the working device, it is provided that the side elements at least partially delimit a main fluid channel and a secondary fluid channel, the secondary fluid channel having at least one first auxiliary fluid outlet opening into the deflection region and at least one second auxiliary fluid outlet opening into the guide groove on a second longitudinal side of the guide rail. By using at least two channels, namely the main fluid channel and the secondary fluid channel, the fluid provided for rinsing the chain, in particular water, can be directed to the intended location in a simple and targeted manner. An unnecessary leakage of water in places that do not contribute significantly to the rinsing of the chain can be prevented. In this case, the main fluid channel and the secondary fluid channel are advantageously designed and connected to a fluid supply such that more fluid flows through the main fluid channel during operation than through the secondary fluid channel. As a result, different amounts of fluid can be supplied to different areas of the guide rail in a simple manner.
Das Arbeitsgerät kann eine Motorsäge und die Kette eine Sägekette sein. Die Sägekette besitzt dabei Schneidzähne zur spanenden Bearbeitung eines Werkstücks, das vorteilhaft aus Holz ist. Das zur Sägekette durch die Fluidkanäle geförderte Fluid ist insbesondere Öl. Besonders vorteilhaft ist das Arbeitsgerät ein Gesteinschneider, und die Kette dient zum Schneiden von mineralischen und/oder metallischen Werkstoffen. Die Kette besitzt dabei Schneidelemente, die das Werkstück abschleifen. Die Schneidelemente sind vorteilhaft Schleifelemente, die Diamantpartikel enthalten.The implement may be a chainsaw and the chain may be a saw chain. The saw chain has cutting teeth for machining a workpiece, which is advantageously made of wood. The fluid delivered to the saw chain through the fluid channels is in particular oil. Particularly advantageously, the implement is a rock cutter, and the chain is used for cutting mineral and / or metallic materials. The chain has cutting elements that grind the workpiece. The cutting elements are advantageous grinding elements containing diamond particles.
Vorteilhaft ist der Nebenfluidkanal mit dem Hauptfluidkanal derart fluidisch verbunden, dass im Betrieb ein Teil des im Hauptfluidkanal strömenden Fluids vom Hauptfluidkanal in den Nebenfluidkanal strömt. Dadurch kann der Nebenfluidkanal über den Hauptfluidkanal mit Fluid versorgt werden, ohne dass eine separate Versorgung des Nebenfluidkanals erforderlich ist.Advantageously, the secondary fluid channel is fluidly connected to the main fluid channel in such a way that, during operation, part of the fluid flowing in the main fluid channel flows from the main fluid channel into the secondary fluid channel. As a result, the secondary fluid channel can be supplied with fluid via the main fluid channel without requiring a separate supply of the secondary fluid channel.
Zweckmäßig strömt im Betrieb mehr als die Hälfte des in den Hauptfluidkanal eintretenden Fluidvolumenstroms zu den Hauptfluidauslässen, und weniger als die Hälfte des in den Hauptfluidkanal eintretenden Fluidvolumenstroms strömt über den Nebenfluidkanal zu den Nebenfluidauslässen. Vorzugsweise strömt im Betrieb mehr als 60%, insbesondere mehr als 70%, vorteilhaft etwa 80% des in den Hauptfluidkanal eintretenden Fluidvolumenstroms zu den Hauptfluidauslässen und weniger als 40%, insbesondere weniger als 30%, insbesondere etwa 20% des in den Hauptfluidkanal eintretenden Fluidvolumenstroms strömt über den Nebenfluidkanal zu den Nebenfluidauslässen. Dadurch wird der Großteil des Wassers durch die Hauptfluidauslässe ausgelassen, wodurch die Kette gezielt an den Hauptfluidauslässen gespült wird. Gleichzeitig wird mit dem kleineren Teil des Wassers die Kette im Bereich der Nebenfluidauslässe gespült. In diesem Bereich ist die Kette weniger stark beansprucht und/oder weniger stark verschmutzt, so dass die kleinere Wassermenge ausreichend ist.In operation, more than half of the fluid volume flow entering the main fluid passageway expediently flows to the main fluid outlets, and less than half of the fluid volume flow entering the main fluid passageway flows via the auxiliary fluid passageway to the auxiliary fluid outlets. Preferably, more than 60%, in particular more than 70%, advantageously about 80%, of the fluid volume flow entering the main fluid channel flows to the main fluid outlets and less than 40%, in particular less than 30%, in particular about 20%, of the fluid volume flow entering the main fluid channel flows via the secondary fluid channel to the Nebenfluidauslässen. As a result, most of the water is discharged through the main fluid outlets, purposely flushing the chain at the main fluid outlets. At the same time, the chain is flushed in the area of the auxiliary fluid outlets with the smaller part of the water. In this area, the chain is less stressed and / or less heavily polluted, so that the smaller amount of water is sufficient.
Vorzugsweise verläuft in einem Längenabschnitt der Führungsschiene ein Trennsteg direkt zwischen dem Hauptfluidkanal und dem Nebenfluidkanal. Der Trennsteg trennt den Hauptfluidkanal und den Nebenfluidkanal und ermöglicht eine gute Führung des Fluids, insbesondere mit geringem Druckverlust, innerhalb der jeweiligen Fluidkanäle. Dadurch wird das Fluid einfach und sicher zu sämtlichen vorgesehenen Fluidauslässen geleitet. Der Trennsteg bildet eine quer zur Ebene der Führungsschiene verlaufende Barriere zwischen Hauptfluidkanal und Nebenfluidkanal. Dadurch können sich beide Kanäle in dem Längenabschnitt über die gesamte Breite der Führungsschiene zwischen den Seitenelementen erstrecken. Der Längenabschnitt ist dabei ein in Längsrichtung verlaufender, durch zwei senkrecht zur Längsrichtung stehende Ebenen abgegrenzter Abschnitt der Führungsschiene.Preferably, in a longitudinal section of the guide rail, a separating web runs directly between the main fluid channel and the secondary fluid channel. The divider separates the main fluid channel and the secondary fluid channel and allows a good management of the fluid, in particular with low pressure drop, within the respective fluid channels. As a result, the fluid is easily and safely directed to all provided fluid outlets. The divider forms a barrier running transversely to the plane of the guide rail between the main fluid channel and the secondary fluid channel. As a result, both channels can extend in the longitudinal section over the entire width of the guide rail between the side elements. The longitudinal section is a section of the guide rail extending in the longitudinal direction and delimited by two planes perpendicular to the longitudinal direction.
Zweckmäßig verläuft in diesem Längenabschnitt der Führungsschiene ein Abschnitt des Hauptfluidkanals bezogen auf eine Mittelebene im Wesentlichen spiegelsymmetrisch zu einem Abschnitt des Nebenfluidkanals, wobei die Mittelebene eine Längsmittelachse der Führungsschiene enthält und senkrecht zur Ebene der Führungsschiene steht. Durch die spiegelsymmetrische Gestaltung ergibt sich ein einfacher Aufbau. Die unterschiedlichen Fluidmengen, die im Betrieb durch Hauptfluidkanal und Nebenfluidkanal strömen, ergeben sich aufgrund der indirekten Speisung des Nebenfluidkanals aus dem Hauptfluidkanal und über die Drosselung der Verbindung der Kanäle. Eine unterschiedliche Geometrie der Kanäle ist nicht vorgesehen. Beim Wenden der Führungsschiene werden Hauptfluidkanal und Nebenfluidkanal vertauscht. Dadurch, dass der Hauptfluidkanal mit dem gehäuseseitigen Wasserauslass verbunden ist und der Nebenkanal über eine Drosselstelle mit dem Hauptfluidkanal verbunden ist, ergeben sich für jede Lage der Führungsschiene die gewünschten Fluidmengen in Hauptfluidkanal und Nebenfluidkanal.Expediently, in this longitudinal section of the guide rail, a section of the main fluid channel is essentially mirror-symmetrical relative to a section of the secondary fluid channel with respect to a center plane, wherein the center plane contains a longitudinal central axis of the guide rail and is perpendicular to the plane of the guide rail. The mirror-symmetric design results in a simple structure. The different amounts of fluid flowing through the main fluid passage and the sub fluid passage during operation result from the indirect supply of the subfluid passage from the main fluid passage and the throttling of the communication of the passageways. A different geometry of the channels is not provided. When turning the guide rail main fluid channel and Nebenfluidkanal be reversed. Characterized in that the main fluid channel is connected to the housing-side water outlet and the secondary channel is connected via a throttle point with the main fluid channel, resulting in each position of the guide rail, the desired amounts of fluid in the main fluid channel and secondary fluid channel.
Zweckmäßig liegt das erste Seitenelement mindestens teilweise am zweiten Seitenelement an, und die Seitenelemente begrenzen den Hauptfluidkanal und den Nebenfluidkanal. Dadurch ist die Herstellung der Führungsschiene unter Ausbildung der Fluidkanäle einfach, und gleichzeitig ist die Führungsschiene mechanisch stabil. Insbesondere liegen die Seitenelemente vollständig aneinander an. Dadurch kann die Führungsschiene lediglich durch zwei Seitenelemente gebildet werden. Es kann jedoch auch vorteilhaft sein, dass zwischen den Seitenelementen ein Zwischenelement angeordnet ist, und der Hauptfluidkanal und der Nebenfluidkanal jeweils mindestens teilweise vom Zwischenelement begrenzt sind. Dadurch ist die Herstellung der Führungsschiene besonders einfach. Insbesondere können die Seitenelemente und das Zwischenelement jeweils als Platten ausgeführt sein. Die Fluidkanäle können beispielsweise aus den Platten ausgestanzt sein. Dabei sind besonders vorteilhaft nur in dem Zwischenelement Ausstanzungen für die Fluidkanäle vorgesehen. In den Seitenelementen ist vorteilhaft nur eine Ausstanzung zur Verbindung des Fluidkanals mit dem gehäuseseitigen Wasseranschluss vorhanden. Die Seitenelemente und das Zwischenelement sind beispielsweise durch Punktschweißung miteinander verbunden.Suitably, the first side member at least partially abuts the second side member, and the side members define the main fluid channel and the sub fluid channel. As a result, the production of the guide rail to form the fluid channels is easy, and at the same time, the guide rail is mechanically stable. In particular, the side elements lie completely against each other. This allows the Guide rail can be formed only by two side elements. However, it may also be advantageous that an intermediate element is arranged between the side elements, and the main fluid channel and the secondary fluid channel are each limited at least partially by the intermediate element. As a result, the production of the guide rail is particularly simple. In particular, the side elements and the intermediate element can each be designed as plates. The fluid channels may for example be punched out of the plates. In this case, punching for the fluid channels are particularly advantageous provided only in the intermediate element. In the side elements is advantageous only one punched to connect the fluid channel with the housing-side water connection available. The side elements and the intermediate element are connected to each other, for example by spot welding.
Vorzugsweise besitzt das Zwischenelement mindestens eine erste Durchbrechung, deren Längsseiten den Hauptfluidkanal begrenzen, und mindestens eine zweite Durchbrechung, deren Längsseiten den Nebenfluidkanal begrenzen. Durchbrechungen im Zwischenelement sind einfach herstellbar, beispielsweise durch Ausstanzen. Eine Durchbrechung kann mit nahezu beliebiger Kontur hergestellt werden, so dass die Fluidkanäle strömungsmechanisch optimal geformt werden können.Preferably, the intermediate element has at least one first opening, whose longitudinal sides delimit the main fluid channel, and at least one second opening, the longitudinal sides of which bound the secondary fluid channel. Openings in the intermediate element are easy to produce, for example by punching. An opening can be made with almost any contour, so that the fluid channels can be optimally formed fluidically.
Zweckmäßig sind der Hauptfluideinlass und der zweite Hauptfluidauslass auf unterschiedlichen Seiten einer Mittelebene der Führungsschiene angeordnet, wobei die Mittelebene eine Längsmittelachse der Führungsschiene enthält und senkrecht zur Ebene der Führungsschiene steht. Zweckmäßig ist der Hauptfluideinlass bezogen auf das Arbeitsgerät in üblicher Abstellposition oberhalb der Mittelebene angeordnet. Damit kann die Führungsschiene am Gehäuse konstruktiv einfach eingespannt und gleichzeitig kann der Hauptfluideinlass konstruktiv einfach mit Wasser versorgt werden.Suitably, the main fluid inlet and the second main fluid outlet are arranged on different sides of a median plane of the guide rail, the median plane containing a longitudinal central axis of the guide rail and being perpendicular to the plane of the guide rail. Suitably, the main fluid inlet with respect to the implement is arranged in the usual parking position above the center plane. This allows the guide rail on the housing structurally simple clamped and at the same time the main fluid inlet can be structurally easily supplied with water.
Vorteilhaft ist die Kette um die Führungsschiene umlaufend angeordnet, wobei im Betrieb ein erster Trum der Kette auf den Umlenkbereich zu läuft und ein zweiter Trum der Kette vom Umlenkbereich weg läuft, und wobei der zweite Hauptfluidauslass auf der gleichen Seite der Mittelebene angeordnet ist wie der zweite Trum der Kette. Der zweite Trum der Kette ist der Trum, der üblicherweise den Schnitt ausführt. Der Hauptteil des Fluids wird dadurch unterhalb der Mittelebene ausgelassen und damit dem Teil der Kette zugeführt, der möglichst gut gespült werden muss. Durch den ersten, am Umlenkbereich mündenden Hauptfluidauslass ist gleichzeitig eine ausreichende Spülung am Umlenkbereich sichergestellt.Advantageously, the chain is arranged circumferentially around the guide rail, wherein in operation a first run of the chain runs on the deflection region and a second run the chain runs away from the deflection region, and wherein the second main fluid outlet is arranged on the same side of the median plane as the second strand of the chain. The second strand of the chain is the strand that usually performs the cut. The main part of the fluid is thereby discharged below the center plane and thus fed to the part of the chain that has to be rinsed as well as possible. At the same time, a sufficient flushing at the deflection region is ensured by the first main fluid outlet opening out at the deflection region.
Vorzugsweise umfasst der Nebenfluidkanal einen im Einspannbereich angeordneten Nebenfluideinlass, und der Nebenfluideinlass und der Hauptfluideinlass sind auf unterschiedlichen Seiten der Mittelebene angeordnet. Der Nebenfluideinlass ist dabei vorteilhaft im Betrieb nicht mit einer Wasserversorgung verbunden, so dass kein Fluid in den Nebenfluideinlass zugeführt wird. Der Nebenfluidkanal wird vorteilhaft ausschließlich über den Hauptfluidkanal mit Fluid versorgt. Zweckmäßig sind der zweite Nebenfluidauslass und der zweite Hauptfluidauslass auf unterschiedlichen Seiten der Mittelebene angeordnet. Insbesondere sind die Ein- und Auslässe symmetrisch zur Mittelebene angeordnet.Preferably, the sub-fluid channel includes a sub-fluid inlet disposed in the gripping region, and the sub-fluid inlet and the main fluid inlet are disposed on different sides of the mid-plane. The auxiliary fluid inlet is advantageously not connected during operation with a water supply, so that no fluid is supplied into the secondary fluid inlet. The auxiliary fluid channel is advantageously supplied with fluid exclusively via the main fluid channel. The second auxiliary fluid outlet and the second main fluid outlet are expediently arranged on different sides of the median plane. In particular, the inlets and outlets are arranged symmetrically to the median plane.
Zweckmäßig kreuzen sich der Hauptfluidkanal und der Nebenfluidkanal an einer ersten Kreuzungsstelle, wobei an der ersten Kreuzungsstelle der Hauptfluidkanal vom Nebenfluidkanal getrennt verläuft. Zweckmäßig kreuzen sich der Hauptfluidkanal und der Nebenfluidkanal an einer zweiten Kreuzungsstelle, wobei an der zweiten Kreuzungsstelle der Hauptfluidkanal vom Nebenfluidkanal getrennt verläuft. Dadurch können die Ein- und Auslässe der Fluidkanäle jeweils auf unterschiedlichen Seiten der Mittelebene angeordnet sein, so dass die Führungsschiene optimal mit Wasser befüllt und gleichzeitig die Kette optimal mit Wasser versorgt ist.Expediently, the main fluid channel and the secondary fluid channel intersect at a first intersection, the main fluid channel being separated from the secondary fluid channel at the first intersection. Expediently, the main fluid channel and the secondary fluid channel intersect at a second intersection, the main fluid channel being separated from the secondary fluid channel at the second intersection. Thereby, the inlets and outlets of the fluid channels can be arranged in each case on different sides of the median plane, so that the guide rail optimally filled with water and at the same time the chain is optimally supplied with water.
Vorteilhaft ist die Führungsschiene wendbar ausgebildet. Dadurch kann die Führungsschiene einfach montiert werden. Der Bediener muss die Lage der Führungsschiene beim Einbau nicht beachten.Advantageously, the guide rail is formed reversible. As a result, the guide rail can be easily mounted. The operator does not have to pay attention to the position of the guide rail during installation.
Für eine Führungsschiene für ein handgeführtes Arbeitsgerät ist vorgesehen, dass die Seitenelemente einen Nebenfluidkanal mindestens teilweise begrenzen, wobei der Nebenfluidkanal mindestens einen im Umlenkbereich mündenden ersten Nebenfluidauslass und mindestens einen an einer zweiten Längsseite der Führungsschiene in die Führungsnut mündenden zweiten Nebenfluidauslass aufweist. Durch die Verwendung von mindestens zwei Kanälen, nämlich dem Hauptfluidkanal und dem Nebenfluidkanal, kann das zur Spülung der Kette vorgesehene Fluid, insbesondere Wasser, einfach und gezielt an die vorgesehene Stelle der Kette geleitet werden. Ein unnötiges Austreten von Wasser an Stellen, die zur Spülung der Kette nicht wesentlich beitragen, kann weitgehend unterbunden werden.For a guide rail for a hand-held implement, it is provided that the side elements at least partially define a secondary fluid channel, the secondary fluid channel having at least one first auxiliary fluid outlet opening into the deflection region and at least one second auxiliary fluid outlet opening into the guide groove on a second longitudinal side of the guide rail. By using at least two channels, namely the main fluid channel and the secondary fluid channel, the fluid provided for rinsing the chain, in particular water, can be directed to the intended point of the chain in a simple and targeted manner. An unnecessary leakage of water in places that do not contribute significantly to the rinsing of the chain can be largely prevented.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand der Zeichnung erläutert. Es zeigen:
- Fig. 1
- eine perspektivische Darstellung eines Gesteinschneiders,
- Fig. 2
- eine Seitenansicht einer Führungsschiene,
- Fig. 3
- eine perspektivische Darstellung der Führungsschiene,
- Fig. 4
- eine schematische Darstellung der Führungsschiene mit Hauptfluidkanal und Nebenfluidkanal,
- Fig. 5
- eine schematische perspektivische Darstellung der Führungsschiene mit Hauptfluidkanal und Nebenfluidkanal,
- Fig. 6
- einen Schnitt entlang der Linie VI-VI in
Fig. 4 , - Fig. 7
- einen Schnitt entlang der Linie VII-VII in
Fig. 4 , - Fig. 8
- eine Ansicht auf die Führungsschiene in Richtung des Pfeils VIII in
Fig. 4 , - Fig. 9
- eine Seitenansicht der Führungsschiene in einem weiteren Ausführungsbeispiel, wobei ein Seitenelement abgenommen ist,
- Fig. 10
- eine Ansicht in Richtung des Pfeils X in
Fig. 9 , - Fig. 11
- einen Schnitt entlang der Linie XI-XI in
Fig. 9 , - Fig. 12
- einen Schnitt entlang der Linie XII-XII in
Fig. 9 . - Fig. 13
- eine perspektivische Darstellung des Seitenelements und des am Seitenelement angeordneten Zwischenelements in einem weiteren Ausführungsbeispiel,
- Fig. 14
- eine Seitenansicht einer Führungsschiene in einem weiteren Ausführungsbeispiel,
- Fig. 15
- eine perspektivische Darstellung der Führungsschiene in dem Ausführungsbeispiel nach
Fig. 14 , - Fig. 16
und 17 - schematische Darstellungen des vorgesehenen Strömungsweges des Hauptfluidstroms in der Führungsschiene in verschiedenen Ausführungsvarianten der Führungsschiene,
- Fig. 18
- eine Seitenansicht auf einen Abschnitt der Kette des Gesteinschneiders.
- Fig. 1
- a perspective view of a rock cutter,
- Fig. 2
- a side view of a guide rail,
- Fig. 3
- a perspective view of the guide rail,
- Fig. 4
- a schematic representation of the guide rail with main fluid channel and secondary fluid channel,
- Fig. 5
- a schematic perspective view of the guide rail with main fluid channel and secondary fluid channel,
- Fig. 6
- a section along the line VI-VI in
Fig. 4 . - Fig. 7
- a section along the line VII-VII in
Fig. 4 . - Fig. 8
- a view of the guide rail in the direction of arrow VIII in
Fig. 4 . - Fig. 9
- a side view of the guide rail in a further embodiment, wherein a side member is removed,
- Fig. 10
- a view in the direction of the arrow X in
Fig. 9 . - Fig. 11
- a section along the line XI-XI in
Fig. 9 . - Fig. 12
- a section along the line XII-XII in
Fig. 9 , - Fig. 13
- a perspective view of the side member and the arranged on the side member intermediate member in a further embodiment,
- Fig. 14
- a side view of a guide rail in a further embodiment,
- Fig. 15
- a perspective view of the guide rail in the embodiment according to
Fig. 14 . - FIGS. 16 and 17
- schematic representations of the intended flow path of the main fluid flow in the guide rail in various embodiments of the guide rail,
- Fig. 18
- a side view of a section of the chain of rock cutter.
Die
Am Gehäuse 2 sind ein hinterer Handgriff 9 sowie ein Griffrohr 10 festgelegt. Der hintere Handgriff 9 ist an der dem Abgasschalldämpfer 8 und einer Gehäusevorderseite 11 abgewandten Gehäuseseite angeordnet. Das Griffrohr 10 überspannt das Gehäuse 2 mit Abstand. In dem Bereich zwischen dem Griffrohr 10 und der Führungsschiene 4 ist ein fest am Gehäuse 2 gehaltener Handschutzbügel 12 angeordnet.On the
Im Betrieb wird die Kette 5 mit einem Fluid, im Ausführungsbeispiel mit Wasser, gespült. Hierzu ist eine Wasserleitung 13 vorgesehen, die über einen Wasseranschluss 14 mit einer Einrichtung zur Wasserversorgung zu verbinden ist. Der Wasseranschluss 14 ist im hinteren Bereich des hinteren Handgriffs 9 angeordnet. Die Wasserleitung 13 führt zu einem in den Figuren nicht sichtbaren Wasserauslass. Der Wasserauslass ist am Gehäuse 2 unter dem Kettenraddeckel 7 angeordnet und vom Kettenraddeckel 7 und von der Führungsschiene 4 abgedeckt. Am Wasserauslass liegt ein in
Die
Die Führungsschiene 4 umfasst ein erstes Seitenelement 23 und ein zweites Seitenelement 24. Zwischen den Seitenelementen 23, 24 ist ein Zwischenelement 25 angeordnet. Wie die
Der Hauptfluideinlass 15 ist in der Bildebene in
Im Ausführungsbeispiel sind der Hauptfluidkanal 26 und der Nebenfluidkanal 27 bezogen auf eine Mittelebene 37 etwa symmetrisch, insbesondere etwa spiegelsymmetrisch, ausgebildet. Die Mittelebene 37 enthält eine Längsmittelachse 38 der Führungsschiene 4 und steht senkrecht zur Ebene der Führungsschiene 4. In
Der Hauptfluidkanal 26 verläuft stromab des Hauptfluideinlasses 15 zunächst geschwungen, insbesondere etwa S-förmig, wobei das Fluid in diesem Abschnitt des Hauptfluidkanals 26 mehrfach, im Ausführungsbeispiel mindestens zweifach die Hauptströmungsrichtung wechselt. Der geschwungene Verlauf des Hauptfluidkanals 26 erstreckt sich etwa vom Hauptfluideinlass 15 bis zu der Stelle, an der der Hauptfluidkanal 26 die Mittelebene 37 schneidet. In einem Längenabschnitt 39 der Führungsschiene 4 umfasst der Hauptfluidkanal 26 einen Förderkanal 43 und mehrere Abzweigkanäle 44. Der Förderkanal 43 verläuft etwa parallel zur Mittelebene 37. Damit die zweiten Hauptfluidauslässe 34 mit Fluid versorgt werden können, zweigen vom Förderkanal 43 die Abzweigkanäle 44 ab. Die Abzweigkanäle 44 enden an den Hauptfluidauslässen 34. Die Abzweigkanäle 44 verlaufen zur Längsmittelachse 38 in Richtung zum Umlenkbereich 20 geneigt, so dass sich ein etwa fischgrätförmiger Kanalverlauf ergibt. Der Strömungsquerschnitt eines jeden Abzweigkanals 44 verjüngt sich in Strömungsrichtung. Stromab des Längenabschnitts 39 vergrößert sich der Abstand zwischen Hauptfluidkanal 26 und Mittelebene 37 und bleibt anschließend etwa konstant. Weiter stromab verjüngt sich der Strömungsquerschnitt des Hauptfluidkanals 26. Schließlich mündet der Hauptfluidkanal 26 in den ersten Hauptfluidauslass 33.The
Der Nebenfluidkanal 27 ist weitgehend symmetrisch zum Hauptfluidkanal 26 ausgebildet, so dass das oben zum Hauptfluidkanal 26 Gesagte entsprechend für den Nebenkanal 27 gilt. Auch der Nebenkanal 27 besitzt einen Förderkanal 43 und Abzweigkanäle 44.The
In dem Längenabschnitt 39 der Führungsschiene 4 verläuft zwischen dem Hauptfluidkanal 26 und dem Nebenfluidkanal 27 ein Trennsteg 40. Der Trennsteg 40 ist im Zwischenelement 25 ausgebildet. Beide Seitenelemente 23, 24 liegen mindestens teilweise am Trennsteg 40 an. Im Längenabschnitt 39 verlaufen der Förderkanal 43 des Hauptfluidkanals 26 und der Förderkanal 43 des Nebenfluidkanals 27 parallel zueinander. Die in
Der Hauptfluidkanal 26 ist mit dem Nebenfluidkanal 27 derart fluidisch verbunden, dass im Betrieb ein Teil des im Hauptfluidkanal 26 strömenden Fluids vom Hauptfluidkanal 26 in den Nebenfluidkanal 27 strömt. Der Wasserübertritt findet insbesondere im Bereich vor dem Trennsteg 40, also vor dem Längenabschnitt 39 statt. Aber auch im Bereich des Trennstegs 40 und im Bereich nach dem Trennsteg 40 kann ein Wasserübertritt stattfinden. Damit Wasser übertreten kann, ist im Ausführungsbeispiel konstruktiv vorgesehen, dass die Seitenelemente 23, 24 und das Zwischenelement 25 nicht dichtend aneinander liegen. Konstruktiv ist dies beispielsweise durch Punktschweißung der Elemente 23, 24, 25 umgesetzt, wobei die fluidische Verbindung aufgrund der Undichtheit zwischen den nicht dichtend mit dem Zwischenelement 25 verbundenen Seitenelementen 23, 24 gebildet ist. Die Undichtheit ist im Ausführungsbeispiel an den Stellen gegeben, an denen der Hauptfluidkanal 26 und der Nebenfluidkanal 27 bis an dasselbe Seitenelement 23, 24 heranreichen. Im Betrieb wird nur dem Hauptfluidkanal 26 über den Hauptfluideinlass 15 Wasser zugeführt. Der Nebenfluidkanal 27 wird nicht mit einer gehäuseseitigen Wasserzuführung verbunden. Über die fluidische Verbindung der beiden Kanäle 26, 27 kann dennoch Wasser aus dem Hauptfluidkanal 26 in den Nebenfluidkanal 27 eintreten und von dort aus den Nebenfluidauslässen 35, 36 austreten. Im Ausführungsbeispiel strömt im Betrieb mehr als die Hälfte des in den Hauptfluidkanal 26 eintretenden Fluidvolumenstroms zu den Hauptfluidauslässen 33, 34, und weniger als die Hälfte des in den Hauptfluidkanal 26 eintretenden Fluidvolumenstroms strömt über den Nebenfluidkanal 27 zu den Nebenfluidauslässen 35, 36. Vorzugsweise strömt im Betrieb mehr als 60%, insbesondere mehr als 70%, vorteilhaft etwa 80% des in den Hauptfluidkanal eintretenden Fluidvolumenstroms zu den Hauptfluidauslässen, und weniger als 40%, insbesondere weniger als 30%, insbesondere etwa 20% des in den Hauptfluidkanal eintretenden Fluidvolumenstroms strömt über den Nebenfluidkanal zu den Nebenfluidauslässen.The
Aufgrund der zur Mittelebene 37 weitgehend symmetrisch ausgebildeten Fluidkanäle 26, 27 sind die Nebenfluidauslässe 35, 36 und die Hauptfluidauslässe 33, 34 auf unterschiedlichen Seiten der Mittelebene 37 und der Hauptfluideinlass 25 und der Nebenfluideinlass 28 auf unterschiedlichen Seiten der Mittelebene 37 angeordnet. Aufgrund der Anordnung der Einlässe 15, 28 und Auslässe 33, 34, 35, 36 auf unterschiedlichen Seiten der Mittelebene 37 kreuzen sich der Hauptfluidkanal 26 und der Nebenfluidkanal 27 an einer ersten Kreuzungsstelle 41. Im Ausführungsbeispiel ist die erste Kreuzungsstelle 41 in einem Bereich etwa zwischen dem Einspannbereich 22 und dem Längenabschnitt 39 angeordnet. An der ersten Kreuzungsstelle 41 verlaufen die Kanäle 26, 27 getrennt voneinander, wie insbesondere in
Im Ausführungsbeispiel nach den
Wie die
Die
Die
Die seitlichen Verbindungsglieder 503 tragen jeweils Schneidsegmente 511. Dabei ist jedes Schneidsegment 511 mit zwei in Laufrichtung 45 nebeneinander liegenden seitlichen Verbindungsgliedern 503 fest verbunden, so dass die Schneidsegmente 511 die Kette 5 in ihrer gesamten Breite überragen und auch die mittigen Verbindungsglieder 501 und 502 teilweise übergreifen.The
In sämtlichen Ausführungsbeispielen entsprechen gleiche Bezugszeichen gleichen Bauteilen. Bei weitgehend ähnlichen Bauteilen sind in dem Ausführungsbeispiel nach den
Claims (16)
dadurch gekennzeichnet, dass die Seitenelemente (23, 123, 24) einen Nebenfluidkanal (27, 227, 327) mindestens teilweise begrenzen, wobei die im Betrieb durch den Hauptfluidkanal (26, 226, 326) strömende Wassermenge größer als die durch den Nebenfluidkanal (27, 227, 327) strömende Wassermenge ist, und dass der Nebenfluidkanal (27, 227, 327) mindestens einen im Umlenkbereich (20) mündenden ersten Nebenfluidauslass (35) und mindestens einen an einer zweiten Längsseite (17) der Führungsschiene (4, 104, 304) in die Führungsnut (19) mündenden zweiten Nebenfluidauslass (36) aufweist.Hand-guided implement with a guide rail (4, 104, 304), wherein the guide rail (4, 104, 304) has a guide groove (19) in which a chain (5) is guided, wherein the guide rail (4, 104, 304) at one end a deflection region (20) for deflecting the chain (5) and at the other end a clamping region (22) for fixing to a housing (2) of the working device, wherein the guide rail (4, 104, 304) a first side element ( 23, 123) and a second side member (24) defining a main fluid channel (26, 226, 326) at least partially, wherein the main fluid channel (26, 226, 326) in the clamping region (22) on the first side member (23, 123), and wherein the main fluid channel (26, 226, 326) has at least one first main fluid outlet (33) opening in the deflection region (20) and at least one on a first longitudinal side (16) of the guide rail (4, 104, 304) in the guide groove (19) opening second has main fluid outlet (34),
characterized in that the side members (23, 123, 24) at least partially define a sub-fluid channel (27, 227, 327), the amount of water flowing through the main fluid channel (26, 226, 326) being greater than that passing through the sub-fluid channel (27 , 227, 327), and in that the auxiliary fluid channel (27, 227, 327) has at least one first auxiliary fluid outlet (35) opening in the deflection region (20) and at least one second longitudinal side (17) of the guide rail (4, 104, 304) in the guide groove (19) opening second Nebenfluidauslass (36).
dadurch gekennzeichnet, dass der Nebenfluidkanal (27, 227, 327) mit dem Hauptfluidkanal (26, 226, 326) derart fluidisch verbunden ist, dass im Betrieb ein Teil des im Hauptfluidkanal (26, 226, 326) strömenden Fluids vom Hauptfluidkanal (26, 226, 326) in den Nebenfluidkanal (27, 227, 327) strömt.Working device according to claim 1,
characterized in that the secondary fluid channel (27, 227, 327) is fluidically connected to the main fluid channel (26, 226, 326) such that, in operation, a portion of the fluid flowing in the main fluid channel (26, 226, 326) is separated from the main fluid channel (26, 26). 226, 326) flows into the secondary fluid channel (27, 227, 327).
dadurch gekennzeichnet, dass im Betrieb mehr als die Hälfte des in den Hauptfluidkanal (26, 226, 326) eintretenden Fluidvolumenstroms zu den Hauptfluidauslässen (33, 34, 362) strömt, und dass weniger als die Hälfte des in den Hauptfluidkanal (26, 226, 326) eintretenden Fluidvolumenstroms über den Nebenfluidkanal (27, 227, 327) zu den Nebenfluidauslässen (35, 36, 363) strömt.Working device according to claim 2,
characterized in that in operation more than half of the fluid volume flow entering the main fluid passage (26, 226, 326) flows to the main fluid outlets (33, 34, 362) and that less than half of the fluid flow into the main fluid passage (26, 226, 326) entering the secondary fluid outlets (35, 36, 363) via the secondary fluid channel (27, 227, 327).
dadurch gekennzeichnet, dass in einem Längenabschnitt (39, 239) der Führungsschiene (4, 104, 304) ein Trennsteg (40, 240) direkt zwischen dem Hauptfluidkanal (26, 226, 326) und dem Nebenfluidkanal (27, 227, 327) verläuft.Tool according to one of claims 1 to 3,
characterized in that in a longitudinal section (39, 239) of the guide rail (4, 104, 304) a separating web (40, 240) extends directly between the main fluid channel (26, 226, 326) and the secondary fluid channel (27, 227, 327) ,
dadurch gekennzeichnet, dass in diesem Längenabschnitt (39, 239) der Führungsschiene (4, 104, 304) ein Abschnitt des Hauptfluidkanals (26, 226, 326) bezogen auf eine Mittelebene (37, 337) im Wesentlichen spiegelsymmetrisch zu einem Abschnitt des Nebenfluidkanals (27, 227, 327) verläuft, wobei die Mittelebene (37, 337) eine Längsmittelachse (38) der Führungsschiene (4, 104, 304) enthält und senkrecht zur Ebene der Führungsschiene (4, 104, 304) steht.Working device according to claim 4,
characterized in that in this longitudinal section (39, 239) of the guide rail (4, 104, 304) a portion of the main fluid channel (26, 226, 326) with respect to a median plane (37, 337) substantially mirror-symmetrical to a portion of the secondary fluid channel ( 27, 227, 327), wherein the median plane (37, 337) includes a longitudinal central axis (38) of the guide rail (4, 104, 304) and is perpendicular to the plane of the guide rail (4, 104, 304).
dadurch gekennzeichnet, dass das erste Seitenelement (123) mindestens teilweise am zweiten Seitenelement (24) anliegt, und dass die Seitenelemente (24, 123) den Hauptfluidkanal (26, 226, 326) und den Nebenfluidkanal (27, 227, 327) begrenzen.Tool according to one of claims 1 to 5,
characterized in that the first side element (123) bears at least partially against the second side element (24), and that the side elements (24, 24) 123) delimit the main fluid channel (26, 226, 326) and the tributary fluid channel (27, 227, 327).
dadurch gekennzeichnet, dass zwischen den Seitenelementen (23, 24) ein Zwischenelement (25, 225) angeordnet ist, und dass der Hauptfluidkanal (26, 226, 326) und der Nebenfluidkanal (27, 227, 327) jeweils mindestens teilweise vom Zwischenelement (25, 225) begrenzt sind.Tool according to one of claims 1 to 5,
characterized in that between the side elements (23, 24) an intermediate element (25, 225) is arranged, and that the main fluid channel (26, 226, 326) and the secondary fluid channel (27, 227, 327) each at least partially from the intermediate element (25 , 225) are limited.
dadurch gekennzeichnet, dass das Zwischenelement (25, 225) mindestens eine erste Durchbrechung besitzt, deren Seitenwände (29, 30) den Hauptfluidkanal (26, 226, 326) begrenzen, und dass das Zwischenelement (25, 225) mindestens eine zweite Durchbrechung besitzt, deren Seitenwände (31, 32) den Nebenfluidkanal (27, 227, 327) begrenzen.Working device according to claim 7,
characterized in that the intermediate element (25, 225) has at least one first opening, whose side walls (29, 30) delimit the main fluid channel (26, 226, 326), and that the intermediate element (25, 225) has at least one second opening, whose side walls (31, 32) delimit the secondary fluid channel (27, 227, 327).
dadurch gekennzeichnet, dass der Hauptfluideinlass (15) und der zweite Hauptfluidauslass (34) auf unterschiedlichen Seiten einer Mittelebene (37, 337) der Führungsschiene (4, 104, 304) angeordnet sind, wobei die Mittelebene (37, 337) eine Längsmittelachse (38) der Führungsschiene (4, 104, 304) enthält und senkrecht zur Ebene der Führungsschiene (4, 104, 304) steht.Tool according to one of claims 1 to 8,
characterized in that the main fluid inlet (15) and the second main fluid outlet (34) are disposed on different sides of a median plane (37, 337) of the guide rail (4, 104, 304), the median plane (37, 337) having a longitudinal central axis (38 ) of the guide rail (4, 104, 304) and is perpendicular to the plane of the guide rail (4, 104, 304).
dadurch gekennzeichnet, dass die Kette (5) um die Führungsschiene (4, 104, 304) umlaufend angeordnet ist, dass im Betrieb ein erster Trum (46) der Kette (5) auf den Umlenkbereich (20) zu läuft und ein zweiter Trum (47) der Kette (5) vom Umlenkbereich (20) weg läuft, und dass der zweite Hauptfluidauslass (34) auf der gleichen Seite der Mittelebene (37, 337) angeordnet ist wie der zweite Trum (47) der Kette (5).Tool according to claim 9,
characterized in that the chain (5) around the guide rail (4, 104, 304) is arranged circumferentially that in operation a first run (46) of the chain (5) on the deflection region (20) to run and a second strand ( 47) of the chain (5) from the deflection region (20) runs away, and that the second main fluid outlet (34) on the same side of the median plane (37, 337) is arranged as the second run (47) of the chain (5).
dadurch gekennzeichnet, dass der Nebenfluidkanal (27, 227, 327) einen im Einspannbereich (22) angeordneten Nebenfluideinlass (28) umfasst, und dass der Nebenfluideinlass (28) und der Hauptfluideinlass (15) auf unterschiedlichen Seiten der Mittelebene (37, 337) angeordnet sind.Tool according to claim 9 or 10,
characterized in that the sub-fluid channel (27, 227, 327) includes a sub-fluid inlet (28) located within the chucking area (22), and the sub-fluid inlet (28) and main fluid inlet (15) are disposed on different sides of the mid-level (37, 337) are.
dadurch gekennzeichnet, dass der zweite Nebenfluidauslass (36) und der zweite Hauptfluidauslass (34) auf unterschiedlichen Seiten der Mittelebene (37, 337) angeordnet sind.Tool according to one of claims 9 to 11,
characterized in that the second subsidiary fluid outlet (36) and the second main fluid outlet (34) are disposed on different sides of the median plane (37, 337).
dadurch gekennzeichnet, dass sich der Hauptfluidkanal (26, 226, 326) und der Nebenfluidkanal (27, 227, 327) an einer ersten Kreuzungsstelle (41) kreuzen, wobei an der ersten Kreuzungsstelle (41) der Hauptfluidkanal (26, 226, 326) vom Nebenfluidkanal (27, 227, 327) getrennt verläuft.Tool according to one of claims 1 to 12,
characterized in that the main fluid channel (26, 226, 326) and the secondary fluid channel (27, 227, 327) intersect at a first intersection (41), wherein at the first intersection (41) the main fluid channel (26, 226, 326) separated from the secondary fluid channel (27, 227, 327).
dadurch gekennzeichnet, dass sich der Hauptfluidkanal (326) und der Nebenfluidkanal (327) an einer zweiten Kreuzungsstelle (361) kreuzen, wobei an der zweiten Kreuzungsstelle (361) der Hauptfluidkanal (326) vom Nebenfluidkanal (327) getrennt verläuft.Working device according to claim 13,
characterized in that the main fluid channel (326) and the secondary fluid channel (327) intersect at a second intersection (361), wherein at the second intersection (361) of the main fluid channel (326) separated from the secondary fluid channel (327).
dadurch gekennzeichnet, dass die Führungsschiene (4, 104, 304) wendbar ausgebildet ist.Tool according to one of claims 1 to 14,
characterized in that the guide rail (4, 104, 304) is formed reversible.
dadurch gekennzeichnet, dass die Seitenelemente (23, 123, 24) einen Nebenfluidkanal (27, 227, 327) mindestens teilweise begrenzen, dass der Nebenfluidkanal (27, 227, 327) mindestens einen im Umlenkbereich (20) mündenden ersten Nebenfluidauslass (35) und mindestens einen an einer zweiten Längsseite (17) der Führungsschiene (4, 104, 304) in die Führungsnut (19) mündenden zweiten Nebenfluidauslass (36, 26, 226, 326) aufweist.Guide rail for a hand-guided implement, wherein the guide rail (4, 104, 304) has a guide groove (19) in which a chain (5) is guided, wherein the guide rail (4, 104, 304) at one end a deflection region (20 ) for deflecting the chain (5) and at the other end a clamping region (22) for fixing to a housing (2) of the working device, wherein the guide rail (4, 104, 304) a first side member (23, 123) and a second Side member (24), which at least partially define a main fluid channel (26, 226, 326), wherein the main fluid channel (26, 226, 326) in the clamping region (22) has a main fluid inlet (15) arranged on the first side element (23, 123). and wherein the main fluid channel (26, 226, 326) has at least one first main fluid outlet (33) opening in the deflection region (20) and at least one first longitudinal side (16) of the guide rail (4, 104, 304) in the guide groove (19 ) opening second main fluid slass (34),
characterized in that the side elements (23, 123, 24) at least partially define a secondary fluid channel (27, 227, 327), that the secondary fluid channel (27, 227, 327) at least one in the deflection region (20) opening first Nebenfluidauslass (35) and Has at least one on a second longitudinal side (17) of the guide rail (4, 104, 304) in the guide groove (19) opening second Nebenfluidauslass (36, 26, 226, 326).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015002719.0A DE102015002719A1 (en) | 2015-03-04 | 2015-03-04 | Hand-operated implement with a guide rail |
Publications (2)
Publication Number | Publication Date |
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EP3064329A1 true EP3064329A1 (en) | 2016-09-07 |
EP3064329B1 EP3064329B1 (en) | 2020-06-24 |
Family
ID=55456545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16000498.2A Active EP3064329B1 (en) | 2015-03-04 | 2016-03-02 | Manually operated working device having a guide rail |
Country Status (4)
Country | Link |
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US (1) | US20160257026A1 (en) |
EP (1) | EP3064329B1 (en) |
CN (1) | CN105936091B (en) |
DE (1) | DE102015002719A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US11897160B1 (en) * | 2022-08-15 | 2024-02-13 | Hangzhou Excelsior & Sharp Garden Tools Co., Ltd. | Electric saw guide plate capable of recycling lubricating oil |
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USD860744S1 (en) * | 2016-04-08 | 2019-09-24 | Tti (Macao Commercial Offshore) Limited | Chainsaw |
SE543428C2 (en) * | 2019-06-24 | 2021-02-16 | Husqvarna Ab | A rotatable cutting chain work tool, a wall saw arrangement comprising such a work tool, an annular member and a method for producing an annular member |
WO2021107833A1 (en) * | 2019-11-27 | 2021-06-03 | Husqvarna Ab | A rim -type abrasion cutter drive sprocket, a drive arrangement, an abrasion cutter and a method of driving an abrasion cutting chain of an abrasion cutter |
CN116669921A (en) * | 2020-11-12 | 2023-08-29 | 奥力根工具公司 | Directional oil delivery for chain saw chains |
CN116714065B (en) * | 2023-08-07 | 2023-11-21 | 杭州方诚工具制造有限公司 | Guide wheel cooling liquid conveying system of chain saw guide plate |
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DE102012010977A1 (en) * | 2012-05-31 | 2013-12-05 | Andreas Stihl Ag & Co. Kg | "Hand-held implement with a cutting chain for cutting mineral or metallic materials" |
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- 2015-03-04 DE DE102015002719.0A patent/DE102015002719A1/en not_active Withdrawn
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- 2016-03-02 EP EP16000498.2A patent/EP3064329B1/en active Active
- 2016-03-04 US US15/060,945 patent/US20160257026A1/en not_active Abandoned
- 2016-03-04 CN CN201610122770.2A patent/CN105936091B/en active Active
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US11897160B1 (en) * | 2022-08-15 | 2024-02-13 | Hangzhou Excelsior & Sharp Garden Tools Co., Ltd. | Electric saw guide plate capable of recycling lubricating oil |
US20240051174A1 (en) * | 2022-08-15 | 2024-02-15 | Hangzhou Excelsior&Sharp Garden Tools Co., Ltd. | Electric saw guide plate capable of recycling lubricating oil |
Also Published As
Publication number | Publication date |
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DE102015002719A1 (en) | 2016-09-08 |
CN105936091A (en) | 2016-09-14 |
EP3064329B1 (en) | 2020-06-24 |
CN105936091B (en) | 2019-10-01 |
US20160257026A1 (en) | 2016-09-08 |
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