US3700040A - Foldable implement cart with forwardly offset wing sections and tacking means for the cable arm retaining means - Google Patents
Foldable implement cart with forwardly offset wing sections and tacking means for the cable arm retaining means Download PDFInfo
- Publication number
- US3700040A US3700040A US51203A US3700040DA US3700040A US 3700040 A US3700040 A US 3700040A US 51203 A US51203 A US 51203A US 3700040D A US3700040D A US 3700040DA US 3700040 A US3700040 A US 3700040A
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- US
- United States
- Prior art keywords
- sections
- cart
- outboard sections
- section
- outboard
- Prior art date
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- Expired - Lifetime
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B73/00—Means or arrangements to facilitate transportation of agricultural machines or implements, e.g. folding frames to reduce overall width
- A01B73/02—Folding frames
Definitions
- a foldable sectional tow-type implement including a wheel cart having a centrally located-section which is revolvably mounted on a horizontal axis extending transversely of the direction of travel for movement between a lower, generally horizontal, operative position and a generally vertical transport position, and a pair of outboard sections interconnected to the centrally located section and each being revolvable with the center section and also swingable in a fore and aft direction relative to the center section when revolved to the vertical transport position to permit folding of the outboard sections rearwardly relative to the center section.
- Each of the sections support or mount agricultural type tools. At least portions of each of the outboard sections are offset forwardly of the centrally located section to provide bypass clearance for the tools when the outboard sections are folded rearwardly and also to shift the center of gravity of the entire implement forwardly to facilitate revolving the sections to the vertical transport position. Wheels for all of the sections are mounted on a common horizontal axis forward of the sections. Flexible cables are connected between the outboard sections and the end of a swingable arm pivoted to the cart forward of the sections. The arm is locked in a lowered position to support the outboard sections when the implement is in its operative position. The arm is released for swinging to a rearward position to permit the outboard sections to be folded rearwardly, but the cables remain connectadmthammdaoutboardsections.wher by ,7
- This invention relates to a sectional tow-type implement cart which has at least a pair of outboard sections which are movable from a laterally extending operative position to a folded inoperative or transport position with the outboard sections extending generally parallel to the direction of travel and rearwardly of a center section.
- Power folded sectional tow-type implements of the character described are being used extensively by farmers, and such power folding implements fall into two general classifications: those which require an operator to dismount from the tractor to manually release the foldable outboard sections after they have been revolved to a raised inoperative position so that they may be folded, and those which permit an operator to shift the various sections between operative and transport positions without dismounting from the tractor.
- Exemplary structures of the first type may be seen by reference to such US. Pat. Nos. as Clark 2,944,615; Marvin 2,973,818; and Gellner 3,086,598. Each of these foldable structures require the operator to dismount from his tractor to release the outboard sections.
- Such US. Pat. Nos. as French 3,122,210 and 3,173,497 show exemplary structures of the second type (the raising and lowering of the outboard sections and folding and unfolding of those sections are accomplished without the operator dismounting from the tractor).
- Ser. No. 855,840 filed Sept. 8, 1969, and entitled Foldable Harrow Cart points out the disadvantages of the prior art structures of the second type, referred to above, and discloses certain improvements thereover. This application relates to and discloses further improvements in such power folded sectional tow-type implements.
- a principal object of this invention is to provide a new and improved foldable sectional towtype implement wherein an operator may shift the various sections between operative and transport positions without dismounting from his tractor.
- Another object of the invention is to provide a foldable sectional working implement of the character described in the preceding paragraph which is power operated, such as by hydraulic power means mounted on the mobile cart, for revolving the sections about a horizontal axis to permit folding of the outboard sections.
- a pair of wheels are rotatably journaled on a pair of arms fixed to a drawbar of the centrally located section and extend forwardly thereof when the implement is in its lowered operative position.
- the wheels have a common axis of rotation and form the axis about which the centrally located section and the outboard sections are revolved to the vertical inoperative position.
- the outboard sections are offset forwardly relative to the central section with at least portions of the outboard sections disposed forwardly of the center section drawbar to shift the center of gravity of the implement forwardly to lessen the pressure on the hydraulic power means.
- each of the outboard sections has at least one wheel disposed forwardly thereof on the common axis for the center section wheels to provide a longer moment arm for the outboard sections to further 5 lessen the pressure on the hydraulic power means.
- offsetting of the outboard sections relative to the center section is important also to provide bypass clearance for agricultural tools mounted on the outboard sections and tools mounted on the center section when in the folded transport position.
- Flexible cables are connected between the outboard sections and an arm which is pivotally mounted to a wheel cart forward of the center section.
- the arm is locked in a lowered position to support the outboard sections when the implement is in its lowered operative position.
- the arm is released for swinging to a rearward, generally upright position to permit the outboard sections to fold rearwardly, but the cables remain connected to the arm and outboard sections whereby the outboard sections pull the arm upwardly and rearwardly during folding against the biasing of a spring means between the arm and the wheel cart.
- the spring means biases the arm back to its lowered forward position where it is locked in place.
- tension remains in the cables at all times during folding and unfolding.
- An additional feature of the invention is that a lost motion means is provided in the hinge connections between the outboard sections and the central section when the outboard sections are in their folded, transport positions to provide for limited vertical movement or pivoting of the outboard sections relative to the center section about the hinge connections to accommodate for irregular terrain when the implement is moved thereover while the implement is in its fully folded transport position.
- Another feature is the provision of means on the outboard sections to prevent the released flexible cables from dropping onto the ground when the outboard sections are in their fully folded transport position during turning movement of the tractor and implement.
- FIG. 1 is a top plan view of the foldable, sectional, tow-type implement of the present invention in its lowered, extended operative position;
- FIG. 2 is a top plan view, partially cut away and on a reduced scale, of the mobile implement in its fully folded transport position;
- FIG. 3 is a perspective view of the wheel cart which is forward of the center section of the implement, with the cable arm in position when the outboard sections are folded rearwardly;
- FIG. 4 is a perspective view of the mobile implement, on a reduced scale from that shown in FIG. 1, attached to a tractor and in its extended operative position with harrow teeth in engagement with the ground;
- FIG. 5 is a perspective view of one of the hinge connections between the outboard sections of the implement and the center section when the sections are folded, on an enlarged scale from that shown in FIGS. 1 and 2 and with portions of the sections cut away;
- FIG. 6 is another perspective view of a hinge connection and showing one of the outwardly protruding arms which prevent the cables from dropping onto the ground when the implement is turned during travel;
- FIG. 7 is a partial perspective view illustrating the bypass clearance for the tools mounted on the implement, when in folded position
- FIG. 8 is a partial sectional view, on an enlarged scale, taken generally in the direction of line 8-8 of FIG. 1;
- FIG. 9 at the bottom thereof, is a partial vertical elevation looking in the direction of line 9-9 in FIG. 1, with a schematic diagram at the top thereof showing the triangle formed by the cables and cable control arm.
- FIGS. 1 and 4 the invention as illustrated herein is embodied in a foldable, towtype, mobile sectional implement, designated generally by the numeral 10 in FIGS. 1 and 4.
- the implement 10 includes a fore and aft extending mobile wheel cart, generally designated 11, and shown best in FIG. 3.
- the cart 11 is comprised of a cart frame which includes a pair of fore and aft extending frame members 13 which are rigidly interconnected at their forward ends where a hitch 15 is provided.
- the frame members 13 diverge rearwardly and are structurally rigid with three cross-frame members 14a, 14b, 14c which extend transversely between the fore and aft frame members 13.
- the rear ends of the frame members 13 are pivoted at 16 (FIG. 3) to an elongate transversely extending center drawbar 19 of a center section, generally designated 20, for the implement.
- This center section includes a rear transverse frame member 20a joined to the drawbar 19 by a pair of fore and aft extending frame members 20b rigidly forming a rectangular center section for the implement.
- a plurality of harrow spring teeth 21 are secured to the drawbar l9 and frame member 20a of the center section for engagement with the ground to work the ground as shown in FIG. 4.
- the center section fore and aft frame members 20b extend forwardly of the drawbar 19 and have housings 22 for housing the axle of a pair of ground-engaging wheels 24, with the wheels 24 having a common axis of rotation forwardly of the drawbar 19.
- the drawbar 19 and, thus, center section 20 are revolvable through an arc of approximately 90 between a lowered operative position as illustrated in FIGS. 1 and 4 to an elevated inoperative position where the drawbar 19 is disposed generally vertically above the horizontal axis of rotation of the wheels 24.
- the center section 20 carried thereby will be in a horizontal position so that the harrow spring teeth 21 carried thereby will engage the surface of the earth.
- the center section 20 will be disposed in an upright position generally vertically above the axis for the wheels 24.
- Means are provided for revolving the drawbar 19, and thus the entire implement (as well be described hereinafter), about its longitudinal axis between the aforesaid operative and inoperative positions and this means comprises a linkage which includes an actuating lever 26 pivotally mounted on a frame element 28 which extends between the crossframe members 14b and 140, for fore and aft swinging movement of the actuating lever 26 about a substantially horizontal transverse axis.
- the upper end of the actuating lever 26 is pivotally connected to the forward end of a motion-transmitting link structure which includes diverging links 30 and pivot links 31.
- the pivot links 31 are pivotally connected to a pair of arms 32 (FIG. 3) which are fixed to the drawbar 19.
- Means are provided for power shifting this linkage and includes a fluid pressure piston and cylinder unit comprising a cylinder 34 which is pivotally connected at one end to the rear cross-frame member 14c to permit pivoting movement about a substantially horizontal transverse axis.
- the cylinder 34 has a piston movable therein and which is connected to a piston rod 36 that projects exteriorly therefrom.
- the piston rod extends forwardly and is pivotally connected to the actuating lever 26.
- This hydraulic unit is of the double acting type and a pair of conduits 38 are connected to a source of fluid under pressure in a known manner through appropriate valve controls to permit selective extension and retraction of the piston rod.
- the controls for operating the hydraulic system are located on the tractor T (FIG. 4) as is convention, and
- a pair of elongate outboard or end sections, generally designated 40, are connected to opposite sides of the center section 20 and each outboard section includes a generally rectangular frame comprising horizontal transversely extending frame members 40a joined at their ends by horizontal fore and aft (in their operative positions as shown in FIG. 1) frame members 40b.
- Each outboard section 40 is hingedly connected by a pair of hinges, generally designated 42, between the inner frame member 40b of each outboard section 40 and the adjacent frame member 20b of the center section 20.
- the hinges 42 when the implement is in its lowered horizontal position, have generally horizontal pivot axes so that the outboard sections 40 are capable of a floating action when in the lowered operative position to accommodate irregular ground surfaces, as seen in FIG. 4.
- outboard sections 40 also include a plurality of spring harrow teeth 21 for earth engagement and working as described above.
- the use of the spring harrow teeth is for illustration purposes, for the form of the invention shown herein may be used with numerous agricultural tools.
- Each of the outboard sections 40 are hinged to the center section 20 in positions (as viewed in FIG. 1) offset forwardly relative to the center section 20 and the center section drawbar 19.
- the forward offsetting of the outboard sections shifts the center of gravity of the entire implement closer to the implement revolving axis defined by the axles for the wheels 24, and consequently, less cylinder pressure is required.
- sufficient clearance is provided so that the harrow spring teeth may bypass each other when the implement is in its folded transport position (see in FIGS. 2 and 7).
- each of the outboard sections 40 has a ground-engaging wheel 44 disposed forwardly of the outboard sections, when in their lowered operative positions, on extensions of the frame members 40b, with the axis of rotation of the outboard section wheels 44 in line with the axis of rotation of the center section wheels 24.
- a forward disposition of the wheels further lessens the pressure required by the piston and cylinder device described above by (a) further shifting the center of gravity forward and (b) providing a longer moment arm for the outboard sections during revolvement.
- the outboard sections 40 are shiftable between an operative extended lowered position as shown in FIGS. 1 and 4 and an inoperative folded elevated position, as is known in the art.
- FIG. 2 shows the outboard sections 40 extending rearwardly from the mobile cart 11 in a conventional folded, transport position.
- the outboard sections When the outboard sections are in the lowered operative position, the outermost end of each section is supported by the ground-engaging wheels 44 journaled at the forward ends of the frame members 40b.
- each outboard section j40 is provided with a transport wheel 46, which engages the surface of the ground when the associated outboard section 40 is in the transport position.
- this transport wheel is disposed out of engagement with respect to the surface of the ground, as shown in FIG. 1, when the associated outboard section 40 is in the operative extended position.
- Retaining means in the form of flexible cables 48, are connected between the outboard sections 40 and the forward end of the mobile cart 11.
- the flexible cables are connected to each of the outboard sections 40 intermediate the ends thereof and extend forwardly therefrom for connection to an elongated cable control arm or release member, generally designated 50, and pivotally mounted between the mobile cart frame members 13 by a pivot shaft 52 (FIG. 3).
- an elongated cable control arm or release member generally designated 50
- the cables 46 support the outboard sections in a horizontal direction against rearward movement as the earth engaging harrow teeth 21, for instance, rnove along and work the ground.
- the cable control arm 50 is held downwardly in a generally horizontal position as shown in FIGS.
- the latch means 53 includes a tongue 54 which is biased by a spring 55 (FIG. 8) rearwardly in latching engagement over a front plate 56 rigidly secured to the free end of the cable control arm 50.
- a spring 55 FIG. 8
- the tongue 54 is pulled forwardly against the biasing of spring 55 by means of a rope 57 (FIG. 8) or the like leading up to the tractor seat for grasping by the driver.
- the control arm 50 then is released and the outboard sections 38 may fold rearwardly (FIG. 2) with the flexible cables 46 moving therewith whereby the control arm 50 is pulled or pivoted rearwardly about shaft 52 by the outboard sections, through the cables.
- the pivot point (shaft 52) for the cable control arm 50 must be maintained below the cables 46 when the control arm is in its latched position so that the control arm will be pulled back by the outboard sections during folding.
- a coil spring 58 urges the control am 50 (which, in turn, brings the cable 48 therewith) back into locked engagement with the latch means 54.
- the cables 46 thus are maintained taut during the folding and unfolding of the implement.
- an arm member 60 is connected by a bracket 60a to the forwardmost outboard section frame member 40a (FIG. 1) and extends outwardly therefrom when the outboard sections are in their fully folded positions (FIG. 2).
- These arms 60 prevent the flexible cables 48 from dropping onto the ground when the tractor makes a somewhat sharp turn during transport of the fully folded implement. Should a sharp turn be made and one of the cables becomes slack, the cable will come to rest on the arm 60 on the respective side of the implement.
- each hinge 42 between the center section 20 and the outboard sections 40 comprises an ear 42a secured to either the respective outboard section 40 or the center section 20, the ear 42a being sandwiched between a pair of ears 42b on the adjacent section, with a pin 62 extending through generally aligned openings in the ears 42a, 42b.
- the openings are generally vertically oriented when the implement is in the folded transport position (FIGS.
- Means in the form of an independent locking device hydraulically actuated by the piston and cylinder device described above is provided to lock the cable control arm 50 in its lower position.
- the latch means 53 may be rendered inoperative by rust, dirt, or the like, clogging the device and preventing the latch tongue 54 from moving rearwardly over the plate 56 on the free end of the cable control arm 50. Without a positive lock, should the latch means 53 become inoperative, damage may be done to the hinges or other portions of the implement when an operator moves the tractor while the implement sections are not in their fully raised or fully lowered position.
- an independent positive lock is provided in the form of a rod extending front to rear of the cart and connected at its rear end to the lower end of the actuating lever 26 which is actuated by the piston and cylinder device.
- the front end of the rod 70 is guided in a sleeve 72 welded to the frame members 13.
- a bracket 74 is fixed to the underside of the plate 56 on the free end of the cable control arm 50 and has an aperture 76 therethrough for receiving the locking rod 70.
- the connection of the front end of the locking rod 70 to the actuating lever 26 is relatively close to the pivot point for the lever so that a relatively short moment arm is formed for reciprocating the rod 70 axially within the sleeve 72.
- the hitch 15 will be connected to a prime mover such as the tractor T (FIG. 4), and the implement will be towed therebehind. If it is assumed that the implement is in the operative position shown in FIG. 1, the piston rod 36 will be retracted so that the actuating lever 26 is disposed in the position illustrated in FIG. 1.
- the center section 20 and the outboard sections 40 will be disposed generally horizontal in their lowered working positions. In this position, the outer ends of the outboard sections will be supported for travel by the ground-engaging wheels 44 and the outboard sections will be permitted to float, due to the hinge connection 42, to accommodate irregularities in the terrain.
- the operator of the tractor When it is desirable to shift the implement to the transport position, the operator of the tractor will actuate the controls located on the tractor whereby the piston rod 36 shifts the actuating lever 26 in a forward direction. This movement is transmitted through the transmitting link 30 to the center section drawbar 19 to rotate the latter and also to produce revolving movement in the forward direction with respect to the outboard sections 40. Rotation of the outboard sections in this direction elevates the associated tools (spring harrow teeth 21 in the embodiment of the invention shown in the drawings). The transport wheels 46 will be rotated from their raised positions to ground-engaging positions while the ground-engaging wheels 44 will be moved out of engaging relationship with respect to the ground.
- the outboard sections 40 and the center section 20 in their raised inoperative position, the operator of the tractor will pull on rope 57 to move tongue 54 from its latch position over the front plate 56 on the forward end of the cable control arm 50, and the cables 48 will pull the control arm rearwardly as the outboard sections 40 are swung to the rearward folded position (FIG. 2) upon forward movement of the tractor or prime mover.
- the offsetting of the outboard sections permit the harrow teeth 21 to bypass at the juncture of the center section and the outboard sections.
- a mobile foldable sectional agricultural type implement which includes a mobile cart for travel over the ground in a forward direction, said cart being adapted for connection to a prime mover and including a frame having tool carrying means, said frame being mounted on the cart and extending transversely of the direction of travel and being revolvable about an axis transversely of the direction of travel for movement between a generally horizontal operative position and a generally vertical inoperative or transport position, said frame having a central section and a pair of end sections, the end sections being hinged to the central section for swinging movement relative to the central section to a rearward folded position in angular relation to the central section when the frame is in said vertical transport position, and power means on said cart for revolving said frame about said axis to permit folding said end sections, the improvement comprising means hingedly connecting said central section to each end section with the end sections and the ground engaging tools carried thereby being offset forwardly of said central section and the corresponding ground engaging tools carried thereby so that when said end sections are folded about said hinge means,
- a mobile foldable sectional agricultural type implement which includes a mobile cart for travel over the ground in a forward direction, said cart being adapted for connection to a prime mover and including a frame having tool carrying means, said frame being mounted on the cart and extending transversely of the direction of travel and being revolvable about an axis transversely of the direction of travel for movement between a generally horizontal operative position and a generally vertical inoperative or transport position, said frame having a central section and a pair of end sections, the end sections being hinged to the central section for swinging movement relative to the central section to a rearward folded position in angular relation to the central section when the frame is in said vertical transport position, and power means on said cart for revolving said frame about said axis to permit folding said end sections, the improvement comprising hin' gedly connecting said frame end sections to said central section with at least one-half of each of said frame end sections disposed forwardly of said central section in said operative position so as to shift the center of gravity of the frame forwardly to less
- a foldable sectional tow type implement including a wheel cart having a centrally located section which is revolvably mounted on a horizontal axis extending transversely of the direction of travel for movement between a lower, generally horizontal, operative position and a generally vertical transport position, and a pair of outboard sections interconnected to the centrally located section and each being revolvable with the center section and also swingable in a fore and aft direction relative to the center section when revolved to the vertical transport position to permit folding of the outboard sections rearwardly relative to the center section, a cable control arm pivotally mounted to the wheel cart forward of said sections and swingable from a forward, lower generally horizontal position and a rearward, upper generally vertical position, a pair of flexible cables connected between the outboard sections and the cable control arm to support the outboard sections when the implement is in its operative position and the control arm is in its lower position power means on said cart for revolving said sections about said axis to raise and lower said sections and to permit folding of said outboard sections,
- said power means comprising a piston and cylinder device
- said lock means including a rod movably operable by said device, a rod receiving member on said cable control arm positioned to engage said rod when said arm is in its lowered position, said rod being moved into locking relationship with said rod receiving member upon initial movement of said piston and cylinder device to lower said sections.
- a foldable sectional tow type implement including a wheel cart having a centrally located section which is revolvably mounted on a horizontal axis extending transversely of the direction of travel for movement between a lower, generally horizontal, operative position and a generally vertical transport position, and a pair of outboard sections interconnected to the centrally located section and each being revolvable with the center section and also swingable in a fore and aft direction relative to the center section when revolved to the vertical transport position to permit folding of the outboard sections rearwardly relative to the center section, a cable control arm pivotally mounted to the wheel cart forward of said sections and swingable from a forward, lower generally horizontal position and a rearward, upper generally vertical position, a pair of flexible cables connected between the outboard sections and the cable control arm to support the outboard sections when the implement is in its operative position and the control arm is in its lower position, power means on said cart for revolving said sections about said axis to raise and lower said sections and to permit folding of said outboard sections
Abstract
Description
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US5120370A | 1970-06-30 | 1970-06-30 |
Publications (1)
Publication Number | Publication Date |
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US3700040A true US3700040A (en) | 1972-10-24 |
Family
ID=21969945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US51203A Expired - Lifetime US3700040A (en) | 1970-06-30 | 1970-06-30 | Foldable implement cart with forwardly offset wing sections and tacking means for the cable arm retaining means |
Country Status (2)
Country | Link |
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US (1) | US3700040A (en) |
CA (1) | CA927179A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3841412A (en) * | 1972-12-18 | 1974-10-15 | Royal Industries | Multiple-piece wing sections for cultivator and selectively locking means for same |
US3880241A (en) * | 1972-12-18 | 1975-04-29 | Royal Industries | Multiple-piece wing sections for cultivator and oscillation preventing device for same |
US3897832A (en) * | 1974-08-19 | 1975-08-05 | Dunham Lehr Inc | Agricultural tool bar |
US4042044A (en) * | 1976-04-12 | 1977-08-16 | Deere & Company | Rear folding implement |
US4042045A (en) * | 1975-06-23 | 1977-08-16 | Kent Manufacturing Co., Inc. | Multiple section farm implement with biased swinging arm structure for attaching reinforcing member to main frame |
US4056148A (en) * | 1975-08-27 | 1977-11-01 | Blair Calvin B | Multiple section farm implement with adjustable latch arrangement |
US4056149A (en) * | 1976-03-08 | 1977-11-01 | Deere & Company | Rearwardly folding implement |
US4058172A (en) * | 1976-02-18 | 1977-11-15 | Kent Manufacturing Co., Inc. | Tooth arrangement in rearwardly folding cultivators |
US4127283A (en) * | 1977-02-18 | 1978-11-28 | Agricot Company, Inc. | Multiple drill hitch assembly |
US4286672A (en) * | 1980-04-18 | 1981-09-01 | International Harvester Company | Rearwardly folding agricultural implement with extendable transport wheels |
US4406329A (en) * | 1980-08-11 | 1983-09-27 | Schlueter Brune G | Agricultural tool cart for minimum tillage and seed planting |
US4418762A (en) * | 1981-07-20 | 1983-12-06 | Western Manufacturing Company, Inc. | Balanced implement transport vehicle |
DE3616403A1 (en) * | 1986-05-15 | 1987-11-19 | Niemeyer Gmbh & Co Kg Soehne | Ground-working machine |
WO1988004134A1 (en) * | 1986-12-05 | 1988-06-16 | Crister Stark | Foldable frame for agricultural rollers |
US4821809A (en) * | 1979-08-17 | 1989-04-18 | Flexi-Coil Limited | Multiple section drawbar |
US5024279A (en) * | 1990-02-20 | 1991-06-18 | J.I. Case Corporation | Foldable implement carrier |
US5839516A (en) * | 1996-03-12 | 1998-11-24 | Unverferth Manufacturing Co., Inc. | Folding frame assembly for a rolling harrow implement having a transport position in which the main frame is upwardly pivoted and the wing frames are forwardly pivoted |
US6260630B1 (en) * | 1998-10-28 | 2001-07-17 | Flexi-Coil Ltd. | Agricultural cultivator for agricultural tillage device |
US20060090910A1 (en) * | 2004-07-20 | 2006-05-04 | Shane Houck | Implement convertible between use configuration and transport configuration |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US790376A (en) * | 1904-11-05 | 1905-05-23 | William Merrill | Riding-harrow. |
US2944615A (en) * | 1956-03-26 | 1960-07-12 | Clark Mfg Company | Support and transporting structure for harrows |
US3173497A (en) * | 1963-01-24 | 1965-03-16 | Damas J French | Harrow attachment |
US3302956A (en) * | 1965-07-16 | 1967-02-07 | Noble Mfg Company | Stabilizer for wheeled harrow drawbar with folding wings |
US3428333A (en) * | 1967-11-24 | 1969-02-18 | Vern Eldon Nelson | Tow-type sectional automatically foldable harrow cart |
US3529674A (en) * | 1968-04-01 | 1970-09-22 | Massey Ferguson Inc | Foldable multiple section earthworking implement |
US3548954A (en) * | 1967-09-28 | 1970-12-22 | Clark Equipment Co | Foldable carriage for earth working implement |
US3606848A (en) * | 1968-12-20 | 1971-09-21 | Charlet B Dobbs | Fertilizer rig |
US3640345A (en) * | 1969-09-08 | 1972-02-08 | Noble Mfg Co | Foldable harrow cart |
-
1970
- 1970-06-30 US US51203A patent/US3700040A/en not_active Expired - Lifetime
-
1971
- 1971-01-27 CA CA103803A patent/CA927179A/en not_active Expired
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US790376A (en) * | 1904-11-05 | 1905-05-23 | William Merrill | Riding-harrow. |
US2944615A (en) * | 1956-03-26 | 1960-07-12 | Clark Mfg Company | Support and transporting structure for harrows |
US3173497A (en) * | 1963-01-24 | 1965-03-16 | Damas J French | Harrow attachment |
US3302956A (en) * | 1965-07-16 | 1967-02-07 | Noble Mfg Company | Stabilizer for wheeled harrow drawbar with folding wings |
US3548954A (en) * | 1967-09-28 | 1970-12-22 | Clark Equipment Co | Foldable carriage for earth working implement |
US3428333A (en) * | 1967-11-24 | 1969-02-18 | Vern Eldon Nelson | Tow-type sectional automatically foldable harrow cart |
US3529674A (en) * | 1968-04-01 | 1970-09-22 | Massey Ferguson Inc | Foldable multiple section earthworking implement |
US3606848A (en) * | 1968-12-20 | 1971-09-21 | Charlet B Dobbs | Fertilizer rig |
US3640345A (en) * | 1969-09-08 | 1972-02-08 | Noble Mfg Co | Foldable harrow cart |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3880241A (en) * | 1972-12-18 | 1975-04-29 | Royal Industries | Multiple-piece wing sections for cultivator and oscillation preventing device for same |
US3841412A (en) * | 1972-12-18 | 1974-10-15 | Royal Industries | Multiple-piece wing sections for cultivator and selectively locking means for same |
US3897832A (en) * | 1974-08-19 | 1975-08-05 | Dunham Lehr Inc | Agricultural tool bar |
US4042045A (en) * | 1975-06-23 | 1977-08-16 | Kent Manufacturing Co., Inc. | Multiple section farm implement with biased swinging arm structure for attaching reinforcing member to main frame |
US4056148A (en) * | 1975-08-27 | 1977-11-01 | Blair Calvin B | Multiple section farm implement with adjustable latch arrangement |
US4058172A (en) * | 1976-02-18 | 1977-11-15 | Kent Manufacturing Co., Inc. | Tooth arrangement in rearwardly folding cultivators |
US4056149A (en) * | 1976-03-08 | 1977-11-01 | Deere & Company | Rearwardly folding implement |
US4042044A (en) * | 1976-04-12 | 1977-08-16 | Deere & Company | Rear folding implement |
US4127283A (en) * | 1977-02-18 | 1978-11-28 | Agricot Company, Inc. | Multiple drill hitch assembly |
US4821809A (en) * | 1979-08-17 | 1989-04-18 | Flexi-Coil Limited | Multiple section drawbar |
US4286672A (en) * | 1980-04-18 | 1981-09-01 | International Harvester Company | Rearwardly folding agricultural implement with extendable transport wheels |
US4406329A (en) * | 1980-08-11 | 1983-09-27 | Schlueter Brune G | Agricultural tool cart for minimum tillage and seed planting |
US4418762A (en) * | 1981-07-20 | 1983-12-06 | Western Manufacturing Company, Inc. | Balanced implement transport vehicle |
DE3616403A1 (en) * | 1986-05-15 | 1987-11-19 | Niemeyer Gmbh & Co Kg Soehne | Ground-working machine |
WO1988004134A1 (en) * | 1986-12-05 | 1988-06-16 | Crister Stark | Foldable frame for agricultural rollers |
US4896732A (en) * | 1986-12-05 | 1990-01-30 | Stark Crister K G | Foldable frame for agricultural rollers |
US5024279A (en) * | 1990-02-20 | 1991-06-18 | J.I. Case Corporation | Foldable implement carrier |
US5839516A (en) * | 1996-03-12 | 1998-11-24 | Unverferth Manufacturing Co., Inc. | Folding frame assembly for a rolling harrow implement having a transport position in which the main frame is upwardly pivoted and the wing frames are forwardly pivoted |
US6260630B1 (en) * | 1998-10-28 | 2001-07-17 | Flexi-Coil Ltd. | Agricultural cultivator for agricultural tillage device |
US20060090910A1 (en) * | 2004-07-20 | 2006-05-04 | Shane Houck | Implement convertible between use configuration and transport configuration |
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CA927179A (en) | 1973-05-29 |
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