CA1289733C - Means for securing objects - Google Patents
Means for securing objectsInfo
- Publication number
- CA1289733C CA1289733C CA000487216A CA487216A CA1289733C CA 1289733 C CA1289733 C CA 1289733C CA 000487216 A CA000487216 A CA 000487216A CA 487216 A CA487216 A CA 487216A CA 1289733 C CA1289733 C CA 1289733C
- Authority
- CA
- Canada
- Prior art keywords
- locking arm
- pivot
- limit stop
- predetermined
- frame
- 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.)
- Expired - Lifetime
Links
- 230000003213 activating effect Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 description 30
- 239000000725 suspension Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003993 interaction Effects 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 210000001364 upper extremity Anatomy 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
- A41H15/00—Cloth-holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
- F16B2/185—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles using levers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/20—Paper fastener
- Y10T24/202—Resiliently biased
- Y10T24/203—Resiliently biased including means to open or close fastener
- Y10T24/204—Pivotally mounted on pintle
Abstract
Abstract of the Disclosure:
Means for securing objects comprising a locking arm (6) pivotally mounted in a frame (2). With the means in a securing position the locking arm is forced against a surface of the frame with the object lying in between and is swung into a released position from the securing position. The surface forms a limit stop for the locking arm (6) which restricts the pivotal motion of the locking arm (6) in one direction of pivoting. The means incorporates devices (7) for rearranging the locking arm in such a way that it is able to swing past the limit stop into a released position.
Means for securing objects comprising a locking arm (6) pivotally mounted in a frame (2). With the means in a securing position the locking arm is forced against a surface of the frame with the object lying in between and is swung into a released position from the securing position. The surface forms a limit stop for the locking arm (6) which restricts the pivotal motion of the locking arm (6) in one direction of pivoting. The means incorporates devices (7) for rearranging the locking arm in such a way that it is able to swing past the limit stop into a released position.
Description
- ~28~
Title:
Means for securing objects Technical field:
S The present invention relates to a means for securing objects comprising a locking arm pivotally mounted ;n a frame which is so arranged, with the means in a securing position, as to be forced against a surface of the frame with the object lying in between and as to be swung from the securing position into a released position.
Background:
For the Durpose of securing objects, for example pieces of material, in such a way that the object can be released easily, a number of different solutions is available depending on the desired function and the type of the object. PreviousLy discLosed for the purpose of securing pieces of materiaL, for example, is a means in the form of a spring-loaded arm which secures an object by friction against a holder positioned in front of it. By moving the arm out of the way in an upward sense the piece of materiaL can be removed from its secured position. Having to swing the arm upwards constitutes a movement in an unfavourable sense, because it takes pLace in the opposite direction to the desired movement required to release the object, whereas to overcome the friction by puLling in a downward sense can cause damage to delicate pieces of material in certain circumstances.
Technical problem The object of the present invention is to eliminate the aforementioned disadvantages by means of a securing means which operates in a highly favourable manner for the object.
.~
~897~3 , . ..
The solution:
The aforementione~ object is achieved by the medns in accordance with the invention, which is characterized in ~hat said surface forms a limit stop for the !ocking arm so arranged as to restrict the pivotaL motion of the locking arm in one direction of pivoting, and in that the means incorporates devices for rearranging the ~ocking arm in such a way that it is abLe to swing past the limit stop ir,to a released position.
Brief description of drawings:
The invention is described below in more detail in relation to a number of typical embodiments with reference to the accompanying drawings, of which Fig. 1 shows a longitudiraL
section through the means in accordance with the inventicn in a first embodiment~ Fig. 2 shows part of the means in accordance with Fig. 1 in a different position, Fig. 3 shows a partly sectioned view from the front of the means in accordance with Fig~ 1, Fig. 4 shows on a larger scale a part of the means in accordance with the invention, Fig. 5 shows a longitudinal section through the means in a second embodiment in a first position, ~hilst Fig. 6 shows the means in a second position, Figs. 7, 8 and 9 show parts represented entirely schematically in three different positions, and Figs. 10, 11 and 12 show the means in a third embodiment.
Best mode of carrying out the invention The means in accordance with the examples shown has been produced especiaLly in order to permit the efficient handling of p;eces of text;le material in the clothing industry. The suspension means in the example shown is intended to constitute or form part of a transport unit in an overhead conveyor system for the transport of pieces of textile material between different work stations, in which case it is important to be able to release the pieces of cloth effectively from the suspension means without the risk of damage to the textile material.
As may be seen from Fig. 1, a section is shown through a - ~''8~ 3 suspension means in accordance with the inYention in the form of a first embodiment suspended by means of a bracket 2 from a conveyor roller 3, by means of which the suspension mPans moYes along a conveyor 4 represented schematically. The movem~nt ma~ be achieved, for example, by giving the conveyor a certain fall 80 that the zuspension means will move of it~ own accord The suspension means consists of a frame 2 with a rsar frame leg 3 and two front frame legs 4, 5, one of which is cut away in Fig.
1. The construction of the front two frame legs is apparent from Fig. 3, however. A central part of the suspension mean is formed by a locking arm 6 which is pivotally mounted in a supporting means 7 in the rear frame leg 3, whilst the securing and locking of the object which is to be secured takes place against the front two frame legs 4, 5 which in this case form a holder against the locking arm. The rear frame leg in the example shown exhibits a U-shaped section with a back piece 8 and two side pieces 9, of which one is cut away in the Figures. Between the two side pieces 9 there is formed a space into which the locking arm extends by its rear end 10, in which case the arm exhibits a shaft 11 passing through or two coaxial pins projecting in opposed directions. The pivot projects into a slot 12 special1y provided for that purpose in each of the side pieces 9. The shape of the slot is best appreciated from Fig. 4. The special shape of ~5 the slot provides two stable supporting points for the locking arm 6, namely a front supporting point in which the arm is shown to be located in accordance with the solid line in Figs. 1 and 2, and a rear supporting point in which the arm is shown to be located in accordance with the dot-and-dash line in Figs. 1 and 2. The slot is shown to be of rather different shape in Fig. 2, although i~ provides the same function as the slot in accordance with Figs. 1 and 4.
The means also exhibits in the typical embodiment shown a spring mechanism 14 in the form of a wire spring, which at the bottom is hooked around the shaft 11 and is held between an upper pin 15 and a fixed, interjacent pin 16 which projects from one of the side pieces 3, whereby the spring mechanism 14 endeavours to ~89~ 3 retain the locking arm 6 with the shaft 11 ;n ~osi~ion at bo~h its pi~oting or support points. The spring mechanism 14 also forms part of a release mechanism 17 which also irlc~rporates a control lever 18, upon actuation of which the spring mechanism is caused to rise by the fact that the pin 15 i5 attac~,ed to the lower end of the lever. By moving the lever to the position indicated by a dot-and-dash line in Fig~ 1, the mechanism is caused to rise w;th the result that the locking arm 6 w;th its shaft 11 is lifted from its front pivot;ng point in an upward sense and is caused to move backwards to the rear pivoting point under the effect of the rearward-acting spring bias from the spring mechanism. The control lever 18 can either be operated manually or automatically, for example by means of a downward-projecting and preferably flexible activating element 19 situated at a work station, for example, with the result that the p;ece of material can be released automatically to fall at the desired point.
The locking arm 6 also exhibits at its rear end 10 a cam 20 so arranged as to interact with a control surface 21 on the back 20 piece 8 causing the locking arm 6 to move forwards from the rear p;voting point to the front pivoting po;nt when the locking arm 6 is moved in a direction from the bottom upwards with its front end 22, for instance between the positions illustrated in Fig. 1.
As ~;ll be apprec;ated from the Figures, the front end of 25 the locking arm 6 projects for a certain distance between the front two frame legs 4, 5 ~h;ch are made from an elastic mater;al. The flexibility of the frame legs 4,5 can thus be regulated by means of a bridg;ng element 23 ~hich is capable of be;ng displaced up or down the two frame legs. In its upper position the frame legs are permitted to flex to a great extent, enabling the front end of the (ocking arm to be pushed bet~een the thickened free ends 24, 25 of the two frame legs and beyond them, this being represented schematically by means of dot-and-dash lines 26 in Fig. 3. In a lower position with the eLement 23 pushed down to~ards the free ends 24, 25 the two frame legs 4, 5 are rigid to all ;ntents and purposes and are even ~ 897~
capable of entirely bLocking the passage of the locking arm 6 between the two legs. The length of the locking arm 6 is sucn, however, that said bLocking will not occur with the lockir,g arm in its rear position, that is to sar with the shaft 11 positioned at the rear pivoting point.
The use of the means in accc,rdance with the invention in its f;rst embodiment is explained with reference to Figs. 1-4. It is assumed for this purpose that the movable eLement 23 adopts a position, for instance the position shown in Figs. 1 and 3, which affords flexibility to the front legs 4,5~ The initiaL position can be either with the locking arm 6 at its front pivoting point or with the locking arm at its rear pivoting pc,int. We have assumed here that the Locking arm is at its position indicated by dot-and-dash lines in accordance with Fig. 1, and with the shaf.
11 at its rear pivoting point. The securing means is then in its released position. A piece of textile material is inserted y holding the piece of material by its upper edge with one hand and by moving the piece of material upwards in the gap between the rear and front frame legs 3, 4, S, and then with the same hand ZO moving the locking arm 6 upwards by causing it to pivot in an upward sense. The locking arm w;ll then be in a rear position in which the locking arm is essentially free to move past the two front frame legs 4, 5 without being obstructed by them, in which case the piece of material will be situated between the free end 2Z of the arm 6 and the legs. As the arm is swung upwards, the cam 2 on the arm will engage with the control surface 21, causing the shaft 11 to move forwards in the slot 12~ and as a certain angle of pivoting is passed by the arm 6, for instance the angle shown in Fig. 2, the shaft 11 will be moved downwards and into 3û its front supporting point resting against the supporting surface 13. Once the front supporting point has been adopted, the locking arm will have reached the pivoting position shown by solid l;nes in Fig. 2. If the locking arm 6 is now permitted to swing back into essent;ally the position indicated by solid lines in Fig. 1, the arm will be blocked against the front frame legs 4, 5 with the piece of material in between. The fact that the arm ~89~
projects slightly between the frame legs will cause the piece of material to be ~olded slightly into the shaoe of a 'U', causing ;t to be held securely. ~he means ;n this case will be in the securing position, enabling the piece of material to be carried along the con~eyor for the purpose of moving it to another work station. When it is wished to remove the piece of material, this can be done in two different ways. The simplest way of achieving this is to pull the piece of material in a downward sense, when the locking arm will be allowed to move past the two frame arms 4, 5 which will flex out of the way to a certain extent so that the locking arm can swir,g down into the position shown in Fig. 1 by means of dot-and-dash lines. The locking arm 6 is thus so arranged as to be released by being swung c!o~n at the same time as a force acting upon the arm is overccme, said force being condsiderably greater than the force required to swing the arm upwards. When a new piece of materiaL is to be inserted, the locking arm can be returned by the application of light pressure to the outer end 22 of the locking arm, causing the locking arm to move to its rear position at the rear pivoting point.
Alternatively, it is possible for the piece of material, as described abo~e, to be released automatically or manually by activating the lever 18, causing the locking arm 6 to move to its rear pivoting point so that the piece of material is released.
The embodiment in accordance with Figs. 5 and 6 in principle exhibits the same function with regard to the action of the locking arm. In this second embodiment, the components which are ~he same as those in the first embodiment have been allocated corresponding reference designations, but with the addition of 100. In th;s case the mechanism for holding the locking arm 106 about its front pivoting point ;s executed differently. In this embodiment the slot 112 is executed as a straight slot, to which has been added a long activating rod128 ~hich e~tends into the rear frame leg between the upper attachment 115 of the spring mechanism 114 and the rear end of the locking arm 106. The activating rod 128 is capable of being moved between an upper position as shown in Fig. 5 and a lower position as sho~n in Fig.
, ,~, . , ,, .. , . ~, , .
6 in a fashion described in greater detail below. The preD3red section shown in F;gs. 5 and 6 ;s considered to extend centrally, from which it will be apparent that the activating rod 728 is divided at the bottom into two shanks 129 extending along the inside of the two side pieces 109, said shanks being intended to ;nteract uith the pins 111 of the locking arm 106 in such a way that, with the activating rod 128 in its lower position ;n accordance with Fig. 6, the locking arm 106 is held in its front pivoting position by interaction between the ~ront edges 13D and said shanks and the pins. The locking arm 106 is also executed at its rear end with a normal upward-facing finger 131 which can be introduced into the space between the two shanks 129, in this ~ay not interfering with them and yet assuring the position of the locking arm for the purpose of its movement from its rear pivoting point to its front pivoting point through interaction with the wall 132 of the back piece 108 as it is swung from the downuard, released position and in an upward sense. A normal, backward~facing finger 133 serves the function of moving the activating rod 128 from its lower position to its upper position whilst the locking arm 196 is being swung downwards. This may be appreciated from the schematic views in Figs. 7, 8 and 9, which show a section made alongside the central section shown in Figs.
5 and 6, and more precisely through one of the shanks 129, in connection with which the upward-fasing finger 131 does not lie in the section and is not illustrated in the interests of clarity.
With further reference to Figs. 5 and 6 it is evident that the locking arm 106 is also in two parts and is articulated at an articulation point 134, ~hereby in certain circumstances it is possible for the arm to be swung upwards ~ithout being moved from the front pivoting point to the rear pivoting point. In this case the locking arm 196 is best made from a high-grade elastic material such that the inherent el2st;city of the material can be utilized to provicde said articulated function.
The use of the means ;n accordance with the second embod;ment is explained with reference to Figs. 5~9. The initial .. , . . _ , . , , . .. . ~, . .
~897;33 .
position ;s such that a piece of material 135, shown in sec~ion in fig. 6, is held securely between the free outer end 122 of the locking arm 106 and the two front legs 104.
The activating rod is thus in its lower position, when its shanks 129 prevent the pins 111 fro~
being displaced from their front pivoting point under the effect of the spring mechanism 114, thereby causing the piece of material to be held securely in the manner described above. The interaction between the activating rod 1Z8 and the pins may also be appreciated from Fig. 9. By pulling the piece of material 135 in a do~nward sense, the locking arm 1Z6 will be caused to accompany it because of the friction between the free end 1Z2 of the ~ock;ng arm and the piece of material, in which case the back~ard-facing finger 133 will be caused by being forced against the underside 136 of the activating rod 128 to lift the lat~er in such a way that the lower edges of the shanks adopt a position above the pins 111, in which case the locking arm will be caused to move under the effect of the spring mechanism 114 to its rear pivoting position in accordance with Figs. 5 and 7 by the movement of the pins 111 along the straight slot 112.
When another piece of mater;al is to be inserted, the locking arm is moved in an upward sense with the result that, as shown by Fig. 5, the upward-facing finger 136 will, through its contact with the wall 132, cause the pins of the locking arm to move forwards until the activating rod 128 drops down through ~he effect of the spring mechanism 114, which is pre-tensioned against a support point 136 in such a way that a downuard-acting force is applied to the activating rod.
By analogy with the alternative possibility in the first 3û embodiment, manual or automatic release can be provided by means of the control lever 118, the actuation of which will cause the activating rod 128 to be raised and the corresponding events to occur, as described above.
ln Figs. 10, 11 and 12 there is shown a third embodiment ~hirh differs in certain respects from the preceding embodiment.
The corresponding parts have been allocated the same reference ~f~ 3.3 designations, but ~ith the addition of 200. In accordance witr, this example, too, the central part of the securing means consists of a locking arm 206 which bridges a gap between a rear frame leg Z03 and, in th;s case, only a ~ingle front ~rame leg 5 204. The locking arm 206 in this case is best made from an eLastic material and is div;ded into two parts uhich are articulated relat;ve to one another about an art;culation point 234. In place of t~o frame legs which are sprung relative to one another, the front frame leg 204 in this case exhibits a stop 237 which normally forms a limit stop against which the piece of material 235 is held. The articulation of the locking arm 206 is such that articulat;on is provided until a certain angle is reached between the two arti~ulated parts without great resistance, although further articuLation can only Gccur if an increased force effect is overcome.
The piece of material 235 is thus held under the eff2ct of friction bet~een the locking arm and the piece of material, in ~hich case it is possible to reLease the piece of mate-rial by pulling the piece of material in a downward sense, causing the locking arm to be allo~ed to pass the limit stop 237 because of elastic deformation, in conjunction with ~hich the bridged gap ~ill open, when the position indicated in Fig. 12 by dot-and-dash Lines ~ill be adopted. Alternatively, the release may be facilitated by manually pressing against the articulation point 234 from below, uhen the locking arm 206 ~ill adopt the position indicated in Fig. 12 by a solid line.
The return of the locking arm 206 to a position above the limit stop 237 takes PLace uith minimal resistance due to the f~ct that the locking arm, as i~ makes sontact ~ith the limit stop, is able very easily to bend around the articulation point 234 SD that the locking arm ~iLl move past the limit stop ~;thout problem, ~hen a piese of mater;al can be inserted and held betueen the lock;ng arm and the frame leg 204.
The invention i~ not restricted to the typical embodiments described above and illustrated in the dra~ings9 but may be modified ~ithin the scope of the ~ollowing claims.
397;~;~
For example, the means in actordance with F;gs. 5 and 6 need not be provided with the articulated function which divides the locking arm into two parts articuLated relative to each other.
Furthermore, neither the first nor the second embodiment need necessariLy exhibit the separate release mechanism with the lever 18. Nor need the stop be in the form of two frame legs, as in the first and second embodiments, bu~ may consist of a ricdge as shown in the third embodiment, which can thus also be combined with the return movement of the locking arm by the adoption of two different pivoting points.
, . , ._ , ,
Title:
Means for securing objects Technical field:
S The present invention relates to a means for securing objects comprising a locking arm pivotally mounted ;n a frame which is so arranged, with the means in a securing position, as to be forced against a surface of the frame with the object lying in between and as to be swung from the securing position into a released position.
Background:
For the Durpose of securing objects, for example pieces of material, in such a way that the object can be released easily, a number of different solutions is available depending on the desired function and the type of the object. PreviousLy discLosed for the purpose of securing pieces of materiaL, for example, is a means in the form of a spring-loaded arm which secures an object by friction against a holder positioned in front of it. By moving the arm out of the way in an upward sense the piece of materiaL can be removed from its secured position. Having to swing the arm upwards constitutes a movement in an unfavourable sense, because it takes pLace in the opposite direction to the desired movement required to release the object, whereas to overcome the friction by puLling in a downward sense can cause damage to delicate pieces of material in certain circumstances.
Technical problem The object of the present invention is to eliminate the aforementioned disadvantages by means of a securing means which operates in a highly favourable manner for the object.
.~
~897~3 , . ..
The solution:
The aforementione~ object is achieved by the medns in accordance with the invention, which is characterized in ~hat said surface forms a limit stop for the !ocking arm so arranged as to restrict the pivotaL motion of the locking arm in one direction of pivoting, and in that the means incorporates devices for rearranging the ~ocking arm in such a way that it is abLe to swing past the limit stop ir,to a released position.
Brief description of drawings:
The invention is described below in more detail in relation to a number of typical embodiments with reference to the accompanying drawings, of which Fig. 1 shows a longitudiraL
section through the means in accordance with the inventicn in a first embodiment~ Fig. 2 shows part of the means in accordance with Fig. 1 in a different position, Fig. 3 shows a partly sectioned view from the front of the means in accordance with Fig~ 1, Fig. 4 shows on a larger scale a part of the means in accordance with the invention, Fig. 5 shows a longitudinal section through the means in a second embodiment in a first position, ~hilst Fig. 6 shows the means in a second position, Figs. 7, 8 and 9 show parts represented entirely schematically in three different positions, and Figs. 10, 11 and 12 show the means in a third embodiment.
Best mode of carrying out the invention The means in accordance with the examples shown has been produced especiaLly in order to permit the efficient handling of p;eces of text;le material in the clothing industry. The suspension means in the example shown is intended to constitute or form part of a transport unit in an overhead conveyor system for the transport of pieces of textile material between different work stations, in which case it is important to be able to release the pieces of cloth effectively from the suspension means without the risk of damage to the textile material.
As may be seen from Fig. 1, a section is shown through a - ~''8~ 3 suspension means in accordance with the inYention in the form of a first embodiment suspended by means of a bracket 2 from a conveyor roller 3, by means of which the suspension mPans moYes along a conveyor 4 represented schematically. The movem~nt ma~ be achieved, for example, by giving the conveyor a certain fall 80 that the zuspension means will move of it~ own accord The suspension means consists of a frame 2 with a rsar frame leg 3 and two front frame legs 4, 5, one of which is cut away in Fig.
1. The construction of the front two frame legs is apparent from Fig. 3, however. A central part of the suspension mean is formed by a locking arm 6 which is pivotally mounted in a supporting means 7 in the rear frame leg 3, whilst the securing and locking of the object which is to be secured takes place against the front two frame legs 4, 5 which in this case form a holder against the locking arm. The rear frame leg in the example shown exhibits a U-shaped section with a back piece 8 and two side pieces 9, of which one is cut away in the Figures. Between the two side pieces 9 there is formed a space into which the locking arm extends by its rear end 10, in which case the arm exhibits a shaft 11 passing through or two coaxial pins projecting in opposed directions. The pivot projects into a slot 12 special1y provided for that purpose in each of the side pieces 9. The shape of the slot is best appreciated from Fig. 4. The special shape of ~5 the slot provides two stable supporting points for the locking arm 6, namely a front supporting point in which the arm is shown to be located in accordance with the solid line in Figs. 1 and 2, and a rear supporting point in which the arm is shown to be located in accordance with the dot-and-dash line in Figs. 1 and 2. The slot is shown to be of rather different shape in Fig. 2, although i~ provides the same function as the slot in accordance with Figs. 1 and 4.
The means also exhibits in the typical embodiment shown a spring mechanism 14 in the form of a wire spring, which at the bottom is hooked around the shaft 11 and is held between an upper pin 15 and a fixed, interjacent pin 16 which projects from one of the side pieces 3, whereby the spring mechanism 14 endeavours to ~89~ 3 retain the locking arm 6 with the shaft 11 ;n ~osi~ion at bo~h its pi~oting or support points. The spring mechanism 14 also forms part of a release mechanism 17 which also irlc~rporates a control lever 18, upon actuation of which the spring mechanism is caused to rise by the fact that the pin 15 i5 attac~,ed to the lower end of the lever. By moving the lever to the position indicated by a dot-and-dash line in Fig~ 1, the mechanism is caused to rise w;th the result that the locking arm 6 w;th its shaft 11 is lifted from its front pivot;ng point in an upward sense and is caused to move backwards to the rear pivoting point under the effect of the rearward-acting spring bias from the spring mechanism. The control lever 18 can either be operated manually or automatically, for example by means of a downward-projecting and preferably flexible activating element 19 situated at a work station, for example, with the result that the p;ece of material can be released automatically to fall at the desired point.
The locking arm 6 also exhibits at its rear end 10 a cam 20 so arranged as to interact with a control surface 21 on the back 20 piece 8 causing the locking arm 6 to move forwards from the rear p;voting point to the front pivoting po;nt when the locking arm 6 is moved in a direction from the bottom upwards with its front end 22, for instance between the positions illustrated in Fig. 1.
As ~;ll be apprec;ated from the Figures, the front end of 25 the locking arm 6 projects for a certain distance between the front two frame legs 4, 5 ~h;ch are made from an elastic mater;al. The flexibility of the frame legs 4,5 can thus be regulated by means of a bridg;ng element 23 ~hich is capable of be;ng displaced up or down the two frame legs. In its upper position the frame legs are permitted to flex to a great extent, enabling the front end of the (ocking arm to be pushed bet~een the thickened free ends 24, 25 of the two frame legs and beyond them, this being represented schematically by means of dot-and-dash lines 26 in Fig. 3. In a lower position with the eLement 23 pushed down to~ards the free ends 24, 25 the two frame legs 4, 5 are rigid to all ;ntents and purposes and are even ~ 897~
capable of entirely bLocking the passage of the locking arm 6 between the two legs. The length of the locking arm 6 is sucn, however, that said bLocking will not occur with the lockir,g arm in its rear position, that is to sar with the shaft 11 positioned at the rear pivoting point.
The use of the means in accc,rdance with the invention in its f;rst embodiment is explained with reference to Figs. 1-4. It is assumed for this purpose that the movable eLement 23 adopts a position, for instance the position shown in Figs. 1 and 3, which affords flexibility to the front legs 4,5~ The initiaL position can be either with the locking arm 6 at its front pivoting point or with the locking arm at its rear pivoting pc,int. We have assumed here that the Locking arm is at its position indicated by dot-and-dash lines in accordance with Fig. 1, and with the shaf.
11 at its rear pivoting point. The securing means is then in its released position. A piece of textile material is inserted y holding the piece of material by its upper edge with one hand and by moving the piece of material upwards in the gap between the rear and front frame legs 3, 4, S, and then with the same hand ZO moving the locking arm 6 upwards by causing it to pivot in an upward sense. The locking arm w;ll then be in a rear position in which the locking arm is essentially free to move past the two front frame legs 4, 5 without being obstructed by them, in which case the piece of material will be situated between the free end 2Z of the arm 6 and the legs. As the arm is swung upwards, the cam 2 on the arm will engage with the control surface 21, causing the shaft 11 to move forwards in the slot 12~ and as a certain angle of pivoting is passed by the arm 6, for instance the angle shown in Fig. 2, the shaft 11 will be moved downwards and into 3û its front supporting point resting against the supporting surface 13. Once the front supporting point has been adopted, the locking arm will have reached the pivoting position shown by solid l;nes in Fig. 2. If the locking arm 6 is now permitted to swing back into essent;ally the position indicated by solid lines in Fig. 1, the arm will be blocked against the front frame legs 4, 5 with the piece of material in between. The fact that the arm ~89~
projects slightly between the frame legs will cause the piece of material to be ~olded slightly into the shaoe of a 'U', causing ;t to be held securely. ~he means ;n this case will be in the securing position, enabling the piece of material to be carried along the con~eyor for the purpose of moving it to another work station. When it is wished to remove the piece of material, this can be done in two different ways. The simplest way of achieving this is to pull the piece of material in a downward sense, when the locking arm will be allowed to move past the two frame arms 4, 5 which will flex out of the way to a certain extent so that the locking arm can swir,g down into the position shown in Fig. 1 by means of dot-and-dash lines. The locking arm 6 is thus so arranged as to be released by being swung c!o~n at the same time as a force acting upon the arm is overccme, said force being condsiderably greater than the force required to swing the arm upwards. When a new piece of materiaL is to be inserted, the locking arm can be returned by the application of light pressure to the outer end 22 of the locking arm, causing the locking arm to move to its rear position at the rear pivoting point.
Alternatively, it is possible for the piece of material, as described abo~e, to be released automatically or manually by activating the lever 18, causing the locking arm 6 to move to its rear pivoting point so that the piece of material is released.
The embodiment in accordance with Figs. 5 and 6 in principle exhibits the same function with regard to the action of the locking arm. In this second embodiment, the components which are ~he same as those in the first embodiment have been allocated corresponding reference designations, but with the addition of 100. In th;s case the mechanism for holding the locking arm 106 about its front pivoting point ;s executed differently. In this embodiment the slot 112 is executed as a straight slot, to which has been added a long activating rod128 ~hich e~tends into the rear frame leg between the upper attachment 115 of the spring mechanism 114 and the rear end of the locking arm 106. The activating rod 128 is capable of being moved between an upper position as shown in Fig. 5 and a lower position as sho~n in Fig.
, ,~, . , ,, .. , . ~, , .
6 in a fashion described in greater detail below. The preD3red section shown in F;gs. 5 and 6 ;s considered to extend centrally, from which it will be apparent that the activating rod 728 is divided at the bottom into two shanks 129 extending along the inside of the two side pieces 109, said shanks being intended to ;nteract uith the pins 111 of the locking arm 106 in such a way that, with the activating rod 128 in its lower position ;n accordance with Fig. 6, the locking arm 106 is held in its front pivoting position by interaction between the ~ront edges 13D and said shanks and the pins. The locking arm 106 is also executed at its rear end with a normal upward-facing finger 131 which can be introduced into the space between the two shanks 129, in this ~ay not interfering with them and yet assuring the position of the locking arm for the purpose of its movement from its rear pivoting point to its front pivoting point through interaction with the wall 132 of the back piece 108 as it is swung from the downuard, released position and in an upward sense. A normal, backward~facing finger 133 serves the function of moving the activating rod 128 from its lower position to its upper position whilst the locking arm 196 is being swung downwards. This may be appreciated from the schematic views in Figs. 7, 8 and 9, which show a section made alongside the central section shown in Figs.
5 and 6, and more precisely through one of the shanks 129, in connection with which the upward-fasing finger 131 does not lie in the section and is not illustrated in the interests of clarity.
With further reference to Figs. 5 and 6 it is evident that the locking arm 106 is also in two parts and is articulated at an articulation point 134, ~hereby in certain circumstances it is possible for the arm to be swung upwards ~ithout being moved from the front pivoting point to the rear pivoting point. In this case the locking arm 196 is best made from a high-grade elastic material such that the inherent el2st;city of the material can be utilized to provicde said articulated function.
The use of the means ;n accordance with the second embod;ment is explained with reference to Figs. 5~9. The initial .. , . . _ , . , , . .. . ~, . .
~897;33 .
position ;s such that a piece of material 135, shown in sec~ion in fig. 6, is held securely between the free outer end 122 of the locking arm 106 and the two front legs 104.
The activating rod is thus in its lower position, when its shanks 129 prevent the pins 111 fro~
being displaced from their front pivoting point under the effect of the spring mechanism 114, thereby causing the piece of material to be held securely in the manner described above. The interaction between the activating rod 1Z8 and the pins may also be appreciated from Fig. 9. By pulling the piece of material 135 in a do~nward sense, the locking arm 1Z6 will be caused to accompany it because of the friction between the free end 1Z2 of the ~ock;ng arm and the piece of material, in which case the back~ard-facing finger 133 will be caused by being forced against the underside 136 of the activating rod 128 to lift the lat~er in such a way that the lower edges of the shanks adopt a position above the pins 111, in which case the locking arm will be caused to move under the effect of the spring mechanism 114 to its rear pivoting position in accordance with Figs. 5 and 7 by the movement of the pins 111 along the straight slot 112.
When another piece of mater;al is to be inserted, the locking arm is moved in an upward sense with the result that, as shown by Fig. 5, the upward-facing finger 136 will, through its contact with the wall 132, cause the pins of the locking arm to move forwards until the activating rod 128 drops down through ~he effect of the spring mechanism 114, which is pre-tensioned against a support point 136 in such a way that a downuard-acting force is applied to the activating rod.
By analogy with the alternative possibility in the first 3û embodiment, manual or automatic release can be provided by means of the control lever 118, the actuation of which will cause the activating rod 128 to be raised and the corresponding events to occur, as described above.
ln Figs. 10, 11 and 12 there is shown a third embodiment ~hirh differs in certain respects from the preceding embodiment.
The corresponding parts have been allocated the same reference ~f~ 3.3 designations, but ~ith the addition of 200. In accordance witr, this example, too, the central part of the securing means consists of a locking arm 206 which bridges a gap between a rear frame leg Z03 and, in th;s case, only a ~ingle front ~rame leg 5 204. The locking arm 206 in this case is best made from an eLastic material and is div;ded into two parts uhich are articulated relat;ve to one another about an art;culation point 234. In place of t~o frame legs which are sprung relative to one another, the front frame leg 204 in this case exhibits a stop 237 which normally forms a limit stop against which the piece of material 235 is held. The articulation of the locking arm 206 is such that articulat;on is provided until a certain angle is reached between the two arti~ulated parts without great resistance, although further articuLation can only Gccur if an increased force effect is overcome.
The piece of material 235 is thus held under the eff2ct of friction bet~een the locking arm and the piece of material, in ~hich case it is possible to reLease the piece of mate-rial by pulling the piece of material in a downward sense, causing the locking arm to be allo~ed to pass the limit stop 237 because of elastic deformation, in conjunction with ~hich the bridged gap ~ill open, when the position indicated in Fig. 12 by dot-and-dash Lines ~ill be adopted. Alternatively, the release may be facilitated by manually pressing against the articulation point 234 from below, uhen the locking arm 206 ~ill adopt the position indicated in Fig. 12 by a solid line.
The return of the locking arm 206 to a position above the limit stop 237 takes PLace uith minimal resistance due to the f~ct that the locking arm, as i~ makes sontact ~ith the limit stop, is able very easily to bend around the articulation point 234 SD that the locking arm ~iLl move past the limit stop ~;thout problem, ~hen a piese of mater;al can be inserted and held betueen the lock;ng arm and the frame leg 204.
The invention i~ not restricted to the typical embodiments described above and illustrated in the dra~ings9 but may be modified ~ithin the scope of the ~ollowing claims.
397;~;~
For example, the means in actordance with F;gs. 5 and 6 need not be provided with the articulated function which divides the locking arm into two parts articuLated relative to each other.
Furthermore, neither the first nor the second embodiment need necessariLy exhibit the separate release mechanism with the lever 18. Nor need the stop be in the form of two frame legs, as in the first and second embodiments, bu~ may consist of a ricdge as shown in the third embodiment, which can thus also be combined with the return movement of the locking arm by the adoption of two different pivoting points.
, . , ._ , ,
Claims (11)
1. A device securing an object, comprising: a frame having a surface; a locking arm having an end and also having pivot means; and pivot receiving means in said frame supporting said pivot means alternatively in a predetermined first position or in a predetermined second position; in said first position, said end of said locking arm pressing against said surface for clamping a respective object against said surface, said surface forming a limit stop restricting pivotal motion of said locking arm in one direction; in said second position the distance of said pivot receiving means from said limit stop being greater than in said first position to allow said end of said locking arm to move in said one direction beyond said limit stop to thereby release an object previously clamped against said surface, when the pivot means is in said second position.
2. A device according to claim 1, wherein said pivot receiving means is a slot in said frame.
3. A device according to claim 1 or 2, wherein said frame has resilient leg means, said limit stop being provided on said leg means, and means displaceable along said leg means for adjusting resiliency of said leg means.
4. A device according to claim 3, wherein said locking arm is forcibly movable from said first position to said second position on account of the resiliency of said leg means.
5. A device according to claim 1 or 2, comprising a release mechanism for moving said pivot receiving means from said first position to said second position.
6. A device according to claim 5, in combination with a conveyor for transporting an object secured to said device between predetermined stations, and activating means at at least one of said stations for activating said release mechanism to thereby move said locking arm from said first to said second position.
7. A device according to claim 1 or 2, wherein said locking arm is movable to a bottom released position when said pivot means is supported in said pivot receiving means in said predetermined second position.
8. A device according to claim 7, wherein said pivot means is movable in said pivot receiving means between a forward pivot point and a rearward pivot point comprising said predetermined first and second positions thereof, respectively.
9. A device according to claim 8, comprising a release mechanism for actively adjusting said pivot means to its rearward pivot point so that said locking arm is able to freely swing past the limit stop.
10. A device according to claim 9, in combination with a hanging conveyor for transporting an object secured to said device between predetermined stations, and an activating element positioned at at least one of said stations for activating said release mechanism upon passage of the device thereby for moving said locking arm to its rearward pivot point.
11. A device according to claim 3, wherein said leg means comprise two legs and said means displaceable along said legs comprise a connecting element connecting said legs.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8403820-7 | 1984-07-23 | ||
| SE8403820A SE447695B (en) | 1984-07-23 | 1984-07-23 | FORMAL FIXING DEVICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1289733C true CA1289733C (en) | 1991-10-01 |
Family
ID=20356588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000487216A Expired - Lifetime CA1289733C (en) | 1984-07-23 | 1985-07-22 | Means for securing objects |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US4817780A (en) |
| EP (2) | EP0221901B1 (en) |
| JP (1) | JPH0733173B2 (en) |
| KR (1) | KR860700209A (en) |
| CA (1) | CA1289733C (en) |
| DE (1) | DE3573708D1 (en) |
| ES (1) | ES295945Y (en) |
| SE (1) | SE447695B (en) |
| WO (1) | WO1986000790A1 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5042640A (en) * | 1989-06-09 | 1991-08-27 | Idab Incorporated | Gripping and conveying apparatus |
| DE4014877C2 (en) * | 1990-05-09 | 1993-11-11 | Kannegiesser H Gmbh Co | Device for feeding laundry to a mangle or the like |
| DE19543525C1 (en) * | 1995-11-22 | 1997-02-06 | Itt Flygt Pumpen Gmbh | Device for handling submersible units |
| DE19614905C2 (en) * | 1996-04-16 | 1998-03-19 | Duerkopp Adler Ag | Conveyor bag for a overhead conveyor |
| US7021453B2 (en) * | 2003-11-13 | 2006-04-04 | Hartness International, Inc. | Conveyor with gear mechanism gripper and related conveyor link |
| US7278531B2 (en) * | 2004-06-29 | 2007-10-09 | Hartness International, Inc. | Flexible conveyor and connection elements |
| US7264113B2 (en) | 2003-11-13 | 2007-09-04 | Hartness International, Inc. | Pivotable conveyor and link |
| US7055677B2 (en) * | 2003-11-13 | 2006-06-06 | Hartness International, Inc. | Conveyor with movable grippers, and related conveyor link |
| US7261199B2 (en) * | 2004-06-29 | 2007-08-28 | Hartness International, Inc. | Neck gripping conveyor and link, and related rotary filler and system |
| US7036658B2 (en) * | 2003-11-13 | 2006-05-02 | Hartness International, Inc. | Gripper conveyor with clear conveying path and related conveyor link |
| US7207434B2 (en) | 2003-11-13 | 2007-04-24 | Hartness International, Inc. | Conveyor with center-actuatable gripper, and related conveyor link |
| US7216758B2 (en) | 2003-11-13 | 2007-05-15 | Hartness International, Inc. | Conveyor with opposed spring-loaded grippers, and related conveyor link |
| US7055676B2 (en) * | 2003-11-13 | 2006-06-06 | Hartness International, Inc. | Conveyor with movable gripper and related conveyor link |
| DE10359859A1 (en) * | 2003-12-18 | 2005-07-14 | PEP Fördertechnik GmbH | Adapter hook for conveyor systems and loading station for an adapter hook |
| US7331156B2 (en) * | 2004-06-29 | 2008-02-19 | Hartness International, Inc. | System for securely conveying articles and related components |
| US7299832B2 (en) * | 2004-06-29 | 2007-11-27 | Hartness International, Inc. | Rotary filling machine and related components, and related method |
| US7185753B2 (en) * | 2004-09-28 | 2007-03-06 | Hartness International, Inc. | Shuttle conveyor |
| US8047590B1 (en) * | 2009-06-17 | 2011-11-01 | The United States Of America As Represented By The Secretary Of The Navy | Underwater galvanic load release device |
| JP6024494B2 (en) * | 2013-02-04 | 2016-11-16 | 日本電気硝子株式会社 | Sheet material conveying apparatus and sheet material conveying method |
| TWI541180B (en) * | 2013-02-04 | 2016-07-11 | Nippon Electric Glass Co | Device and method for handling sheet material |
| CN103935739B (en) * | 2014-04-24 | 2018-09-28 | 宁波圣瑞思服装机械有限公司 | Automatic clamping mechanism for intelligent hangar system |
| DE102014226600A1 (en) * | 2014-12-19 | 2016-06-23 | Vanderlande Industries B.V. | Conveying element for hanging conveyor systems |
| CN107055058A (en) * | 2017-06-01 | 2017-08-18 | 台州飞跃双星成衣机械有限公司 | Logistics deflecting movement system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1423952A (en) * | 1921-06-09 | 1922-07-25 | Us Playing Card Co | Paper-conveying mechanism |
| US1864114A (en) * | 1931-07-10 | 1932-06-21 | Angerpointner Matthias | Holding device for piece goods in suspended lines |
| CH160419A (en) * | 1932-02-04 | 1933-03-15 | Peter Alois | Device for holding the fabric in place while sewing. |
| CH170749A (en) * | 1933-11-03 | 1934-07-31 | Borcovec Werner | Fabric clamping device. |
| US2852257A (en) * | 1955-10-07 | 1958-09-16 | Paul A Sperry | Work handling apparatus |
| US3091326A (en) * | 1960-03-23 | 1963-05-28 | Swift & Co | Sheep pelt clamp |
| US3023878A (en) * | 1960-10-19 | 1962-03-06 | Syracuse Supply Co | Selective conveyor system |
| DE1293990B (en) * | 1963-02-15 | 1969-04-30 | Reich Robert W | Hanging device for towels, toiletries, sheets of paper, etc. like |
| DE2130783B2 (en) * | 1971-06-22 | 1975-01-16 | Pfalzstahlbau Gmbh, 6780 Pirmasens | Circular conveyor |
| US3884370A (en) * | 1973-09-28 | 1975-05-20 | Burroughs Corp | System for sorting and processing articles including flat mail pieces |
| US3904027A (en) * | 1974-01-02 | 1975-09-09 | John R Gilles | Document distribution system |
| US3960264A (en) * | 1975-01-28 | 1976-06-01 | Burroughs Corporation | Item transport apparatus |
| DE2857269C1 (en) * | 1977-12-15 | 1985-01-17 | The Crosby Group, Inc. (n.d.Ges.d. Staates Minnesota), Tulsa, Okla. | L-shaped load hook with a smooth contour |
| US4199173A (en) * | 1979-01-29 | 1980-04-22 | James Greenlees | Clipboard with elastic band for holding sheets |
-
1984
- 1984-07-23 SE SE8403820A patent/SE447695B/en not_active IP Right Cessation
-
1985
- 1985-07-18 EP EP85903723A patent/EP0221901B1/en not_active Expired
- 1985-07-18 JP JP60503261A patent/JPH0733173B2/en not_active Expired - Lifetime
- 1985-07-18 US US06/852,445 patent/US4817780A/en not_active Expired - Lifetime
- 1985-07-18 KR KR1019860700163A patent/KR860700209A/en not_active Application Discontinuation
- 1985-07-18 WO PCT/SE1985/000285 patent/WO1986000790A1/en active IP Right Grant
- 1985-07-18 EP EP89102309A patent/EP0329030A3/en not_active Withdrawn
- 1985-07-18 DE DE8585903723T patent/DE3573708D1/en not_active Expired
- 1985-07-22 ES ES1985295945U patent/ES295945Y/en not_active Expired
- 1985-07-22 CA CA000487216A patent/CA1289733C/en not_active Expired - Lifetime
-
1987
- 1987-03-17 US US07/027,004 patent/US4830174A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0221901A1 (en) | 1987-05-20 |
| EP0221901B1 (en) | 1989-10-18 |
| EP0329030A3 (en) | 1990-03-07 |
| SE447695B (en) | 1986-12-08 |
| JPH0733173B2 (en) | 1995-04-12 |
| ES295945U (en) | 1987-07-16 |
| JPS61502744A (en) | 1986-11-27 |
| WO1986000790A1 (en) | 1986-02-13 |
| KR860700209A (en) | 1986-08-01 |
| SE8403820D0 (en) | 1984-07-23 |
| US4817780A (en) | 1989-04-04 |
| DE3573708D1 (en) | 1989-11-23 |
| US4830174A (en) | 1989-05-16 |
| EP0329030A2 (en) | 1989-08-23 |
| ES295945Y (en) | 1988-01-16 |
| SE8403820L (en) | 1986-01-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |