CA2132072C - Farm implement frame - Google Patents
Farm implement frame Download PDFInfo
- Publication number
- CA2132072C CA2132072C CA002132072A CA2132072A CA2132072C CA 2132072 C CA2132072 C CA 2132072C CA 002132072 A CA002132072 A CA 002132072A CA 2132072 A CA2132072 A CA 2132072A CA 2132072 C CA2132072 C CA 2132072C
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- Canada
- Prior art keywords
- tool support
- support means
- farm implement
- implement frame
- axis
- 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
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Classifications
-
- 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
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Agricultural Machines (AREA)
Abstract
The invention is a frame for use in farm implements having a crank mounted on a frame element rotatable between a first position and a further position which is lockable in the first position, a tool support pivotally mounted on the crank and an actuator operable to raise and lower the tool support in relation to the ground and to raise the tool support to a transport position.
Description
FARM IMPLEMENT FRAME
BACKGROUND AND OBJECTS
This invention relates to frames for farm implements such as cultivators which operate to cover large sections of the ground being tilled and particularly such frames as are adapted to be part of an implement cart or other farm vehicle and which may be folded for transportation from one field to another.
As farm techniques become more selective and specialized, it is increasingly necessary for farm implement frames such as found in cultivator frames to provide for flexibility in the working position, easily adjustable and uniform height above the ground when working and stable folded transport with a minimum of materials, particularly hydraulic components and energy requirements.
An object of the present invention is to provide a farm implement frame element which readily provides for uniform and readily controllable height adjustment above the ground.
Another object of the present invention is to provide a farm implement frame element which provides for tool supports to be rotated out of contact with the ground into a generally vertical position so that it may be folded for transport.
These and other objects of the invention will become apparent from the ensuing description thereof and of its application in preferred embodiments.
DESCRIPTION OF THE INVENTION
The invention consists of a farm implement frame element supported out of contact with the ground for connection to a farm vehicle or cart with at least one crank member mounted on said frame element and rotatable about a main first axis parallel to said frame element between a first and a further position, a lock to selectively restrain said crank member in the said first position, a tool support pivotally supported on said crank member for rotation about a second axis parallel to and offset from said main first axis between working positions at different heights above the ground, and between such working positions and a transport position spaced from the ground, an actuator operable when said lock selectively does not restrain said crank member in said first position to rotate both of said crank member about said first axis between said first and said further position, and said tool support about said second axis, in conjunction, thereby to change the height of the tool support above the ground in its working positions, and operable when said lock restrains said crank member in said first position, to rotate said tool support about said second axis, between the working positions to the said transport position.
The invention further consists of a farm implement frame with a ground engaging element further supporting the said tool support means out of contact with the ground wherein said ground engaging element may be adjustably mounted on said tool support and rotation of said tool support about said second axis varies the disposition of said ground engaging element relative to said tool support.
The invention further consists of a farm implement frame wherein said ground engaging element comprises a press wheel assembly pivotally mounted on said tool support about a third axis parallel to and substantially offset from both of said first and said second axis and wherein said actuator may comprise a first extensible linkage extending between said crank member and said ground engaging element.
The invention further consists of a farm implement frame wherein said actuator may comprise a second extensible linkage extending between said crank member and said frame member operating selectively in conjunction with and separately from said first extensible linkage.
The invention further consists of a farm implement frame wherein said tool support is generally upright in said transport position.
The invention further consists of a farm implement frame with a wheel linkage between said crank member and said press wheel assembly operable to change the height of the tool support above the ground wherein rotation of said tool support about said second axis imparts a corresponding rotation of said ground engaging element relative to said tool support and wherein said wheel linkage may maintain the said tool support generally horizontal to the ground when said lock does not restrain said crank member in said first position.
The invention further consists of a farm implement frame with an abutment between said crank member and said tool support to limit relative rotation therebetween particularly relative rotation at said further position and in said transport position.
LIST OF DRAWINGS
Figure 1 is a cross-sectional elevation of the preferred embodiment of the farm implement frame of the invention in the upright position showing the transport mode but with the frame element transverse to the direction of travel.
BACKGROUND AND OBJECTS
This invention relates to frames for farm implements such as cultivators which operate to cover large sections of the ground being tilled and particularly such frames as are adapted to be part of an implement cart or other farm vehicle and which may be folded for transportation from one field to another.
As farm techniques become more selective and specialized, it is increasingly necessary for farm implement frames such as found in cultivator frames to provide for flexibility in the working position, easily adjustable and uniform height above the ground when working and stable folded transport with a minimum of materials, particularly hydraulic components and energy requirements.
An object of the present invention is to provide a farm implement frame element which readily provides for uniform and readily controllable height adjustment above the ground.
Another object of the present invention is to provide a farm implement frame element which provides for tool supports to be rotated out of contact with the ground into a generally vertical position so that it may be folded for transport.
These and other objects of the invention will become apparent from the ensuing description thereof and of its application in preferred embodiments.
DESCRIPTION OF THE INVENTION
The invention consists of a farm implement frame element supported out of contact with the ground for connection to a farm vehicle or cart with at least one crank member mounted on said frame element and rotatable about a main first axis parallel to said frame element between a first and a further position, a lock to selectively restrain said crank member in the said first position, a tool support pivotally supported on said crank member for rotation about a second axis parallel to and offset from said main first axis between working positions at different heights above the ground, and between such working positions and a transport position spaced from the ground, an actuator operable when said lock selectively does not restrain said crank member in said first position to rotate both of said crank member about said first axis between said first and said further position, and said tool support about said second axis, in conjunction, thereby to change the height of the tool support above the ground in its working positions, and operable when said lock restrains said crank member in said first position, to rotate said tool support about said second axis, between the working positions to the said transport position.
The invention further consists of a farm implement frame with a ground engaging element further supporting the said tool support means out of contact with the ground wherein said ground engaging element may be adjustably mounted on said tool support and rotation of said tool support about said second axis varies the disposition of said ground engaging element relative to said tool support.
The invention further consists of a farm implement frame wherein said ground engaging element comprises a press wheel assembly pivotally mounted on said tool support about a third axis parallel to and substantially offset from both of said first and said second axis and wherein said actuator may comprise a first extensible linkage extending between said crank member and said ground engaging element.
The invention further consists of a farm implement frame wherein said actuator may comprise a second extensible linkage extending between said crank member and said frame member operating selectively in conjunction with and separately from said first extensible linkage.
The invention further consists of a farm implement frame wherein said tool support is generally upright in said transport position.
The invention further consists of a farm implement frame with a wheel linkage between said crank member and said press wheel assembly operable to change the height of the tool support above the ground wherein rotation of said tool support about said second axis imparts a corresponding rotation of said ground engaging element relative to said tool support and wherein said wheel linkage may maintain the said tool support generally horizontal to the ground when said lock does not restrain said crank member in said first position.
The invention further consists of a farm implement frame with an abutment between said crank member and said tool support to limit relative rotation therebetween particularly relative rotation at said further position and in said transport position.
LIST OF DRAWINGS
Figure 1 is a cross-sectional elevation of the preferred embodiment of the farm implement frame of the invention in the upright position showing the transport mode but with the frame element transverse to the direction of travel.
Figure 2 is a cross-sectional elevation of the preferred embodiment of the farm implement frame of the invention in the highest working position.
Figure 3 is a cross-sectional elevation of the preferred embodiment of farm implement frame of the invention in the working position at its lowermost limit.
Figure 4 is a cross-section of another embodiment of the farm implement frame of the invention in the highest working position corresponding to Figure 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Figure 1 shows a cross-sectional elevation of the preferred embodiment of the invention taken through frame element 1. Typically frame element 1 is incorporated into a farm implement cart or other vehicle, such as a seeder or tractor, or it is incorporated into a larger frame in a conventional manner.
Typically frame element 1 is transverse to the direction of travel 30 in the working positions and when upright is shown in Figure 1. After reaching the upright position of Figure 1 frame element 1 may be folded about one or more vertical axes (not shown) to form a V-shape or a U-shape, otherwise rotated or end-towed, in a conventional manner, so as to be all or substantially all generally parallel to the direction of travel for full transport (not separately shown). The upright position of Figure 1 is maintained. Frame element 1 may be supported above the ground by wheel 27 and carriage 25 as shown in Figure 2.
Main rock shaft 2 is mounted to frame element 1 by conventional means (not shown) for rotation about main first crank axis 3 parallel to and offset rearwardly from the frame element 1. Main rock shaft is preferably a hollow tube as shown in Figure 1. Crank member 4 is fixedly attached to main rock shaft 2 rotation about main first crank axis 3 between a first (upright) crank position Sa shown in Figure 1, also the highest working position shown in Figure 2, to a second crank position Sc shown in Figure 3 which is shown as corresponding to the working position lowermost limit.
Tool support 6 is pivotally mounted to crank member 5 for rotation about second axis 18 which is parallel to first main axis 3 and preferably offset from tool support center line 31. Tool support 6 is shown in Figure 1 in an upright position 6a.
Main rock shaft 2 preferably carries multiple crank members (not shown) in the same fashion which may be paired for individual tool supports. Conventional tillage tools, such as cultivator shanks, may be attached to tool support 6.
Hydraulic actuator 13, shown fully contacted in Figure l, is pivotally connected between tool support 6 and crank member 4 at attachment points 14 and 15 to control the position of tool support 6 relative to crank member 4 by rotation of tool support 6 about second axis 18 parallel to main first axis 3. Fixation of the hydraulic ram by balanced pressure in a conventional manner fixes the relative position of tool support 6 in relation to crank 4.
Counter-clockwise rotation of tool support 6 about second axis 18 is limited as shown in Figures 1 and 3 as abutting end 11 comes into contact with stop 12.
Locking arm 7, shown in locked position 7a in Figure 1, is pivotally attached to frame member 1 for rotation about axis 8 and preferable is of a general U-shape. In position 7a lock pin 9 which may form part of the preferred U-shape engages recess 10 in the crank member 4 to maintain crank member 4 in the first upright position fully rotated counter-clockwise against stop pad 19. The weight of tool support 6 and the fixation provided by cylinder 13 retain pin 9 in the locked position.
Extension of cylinder 13 from fully retracted position 13a of Figure 1 to fully extended position 13b as shown in Figure 2 (with locking arm 7 in the locked position 7a) rotates tool support 6 clockwise about second axis 18 from the generally upright position 6a towards a generally horizontal position 6b maximally elevated above the ground level 26b as shown in Figure 2. Maintenance of lock arm 7 in locked position 7a (shown in dotted outline in Figure 2) maintains crank member 4 in the first position Sa against stop pad 19 throughout this range.
Wheel assembly generally designated 32 in Figures 2 and 3 is pivotally mounted to tool support 6 for rotation about packer arm pivot axis 22 between positions 32b and 32a. Packer arm pivot axis 22 is preferably parallel to main first axis 3. . Wheel assembly 32 is preferably a coil packer or press wheel 20 mounted on packer arm 21 for rotation about transverse wheel axis 24 and packer arm pivot axis 22.
Preferably the relative angular relationship of packer arm 21 in relation to tool support 6 is maintained by wheel linkage 16 pivotally connected between crank member 4 at point 17 and packer arm 21 at point 23. Adjustment of the relative rates of rotation and final relative positions of the tool support 6 and the packer arm 21 may be achieved by adjusting the distances between their respective pivotal axes.
Figure 3 is a cross-sectional elevation of the preferred embodiment of farm implement frame of the invention in the working position at its lowermost limit.
Figure 4 is a cross-section of another embodiment of the farm implement frame of the invention in the highest working position corresponding to Figure 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Figure 1 shows a cross-sectional elevation of the preferred embodiment of the invention taken through frame element 1. Typically frame element 1 is incorporated into a farm implement cart or other vehicle, such as a seeder or tractor, or it is incorporated into a larger frame in a conventional manner.
Typically frame element 1 is transverse to the direction of travel 30 in the working positions and when upright is shown in Figure 1. After reaching the upright position of Figure 1 frame element 1 may be folded about one or more vertical axes (not shown) to form a V-shape or a U-shape, otherwise rotated or end-towed, in a conventional manner, so as to be all or substantially all generally parallel to the direction of travel for full transport (not separately shown). The upright position of Figure 1 is maintained. Frame element 1 may be supported above the ground by wheel 27 and carriage 25 as shown in Figure 2.
Main rock shaft 2 is mounted to frame element 1 by conventional means (not shown) for rotation about main first crank axis 3 parallel to and offset rearwardly from the frame element 1. Main rock shaft is preferably a hollow tube as shown in Figure 1. Crank member 4 is fixedly attached to main rock shaft 2 rotation about main first crank axis 3 between a first (upright) crank position Sa shown in Figure 1, also the highest working position shown in Figure 2, to a second crank position Sc shown in Figure 3 which is shown as corresponding to the working position lowermost limit.
Tool support 6 is pivotally mounted to crank member 5 for rotation about second axis 18 which is parallel to first main axis 3 and preferably offset from tool support center line 31. Tool support 6 is shown in Figure 1 in an upright position 6a.
Main rock shaft 2 preferably carries multiple crank members (not shown) in the same fashion which may be paired for individual tool supports. Conventional tillage tools, such as cultivator shanks, may be attached to tool support 6.
Hydraulic actuator 13, shown fully contacted in Figure l, is pivotally connected between tool support 6 and crank member 4 at attachment points 14 and 15 to control the position of tool support 6 relative to crank member 4 by rotation of tool support 6 about second axis 18 parallel to main first axis 3. Fixation of the hydraulic ram by balanced pressure in a conventional manner fixes the relative position of tool support 6 in relation to crank 4.
Counter-clockwise rotation of tool support 6 about second axis 18 is limited as shown in Figures 1 and 3 as abutting end 11 comes into contact with stop 12.
Locking arm 7, shown in locked position 7a in Figure 1, is pivotally attached to frame member 1 for rotation about axis 8 and preferable is of a general U-shape. In position 7a lock pin 9 which may form part of the preferred U-shape engages recess 10 in the crank member 4 to maintain crank member 4 in the first upright position fully rotated counter-clockwise against stop pad 19. The weight of tool support 6 and the fixation provided by cylinder 13 retain pin 9 in the locked position.
Extension of cylinder 13 from fully retracted position 13a of Figure 1 to fully extended position 13b as shown in Figure 2 (with locking arm 7 in the locked position 7a) rotates tool support 6 clockwise about second axis 18 from the generally upright position 6a towards a generally horizontal position 6b maximally elevated above the ground level 26b as shown in Figure 2. Maintenance of lock arm 7 in locked position 7a (shown in dotted outline in Figure 2) maintains crank member 4 in the first position Sa against stop pad 19 throughout this range.
Wheel assembly generally designated 32 in Figures 2 and 3 is pivotally mounted to tool support 6 for rotation about packer arm pivot axis 22 between positions 32b and 32a. Packer arm pivot axis 22 is preferably parallel to main first axis 3. . Wheel assembly 32 is preferably a coil packer or press wheel 20 mounted on packer arm 21 for rotation about transverse wheel axis 24 and packer arm pivot axis 22.
Preferably the relative angular relationship of packer arm 21 in relation to tool support 6 is maintained by wheel linkage 16 pivotally connected between crank member 4 at point 17 and packer arm 21 at point 23. Adjustment of the relative rates of rotation and final relative positions of the tool support 6 and the packer arm 21 may be achieved by adjusting the distances between their respective pivotal axes.
Rotation of tool support 6 from position 6a, Figure 1, to position 6b, Figure 2, with lock arm 7 in locked position 7a rotates wheel assembly 32 clockwise from position 32a, (shown in dotted outline in Figure 2 but not shown in Figure 1) in relation to tool support position 6a, to a ground engaging position 32b as shown in Figure 2. Tool support 6 is supported in a generally horizontal maximally elevated position 6b above ground level 26b on crank member 4 and packer arm 21b.
Contraction of cylinder 13b from the position of Figure 2, while maintaining lock arm 7 in the locked position 7a, rotates tool support 6b counter-clockwise about second axis 18 while crank member 4 remains in first position Sa. Wheel linkage 16 rotates packer arm 21 from position 21b, with packer 20 in position 20b in contact with the ground, counter-clockwise about axis 22 towards elevated position 32a in relation to tool support 6.
Release of crank member 4 by rotation of lock arm 7 from locked position 7a to unlocked position 7b (shown in solid outline in Figure 2) releases crank member 4 for rotation about main first axis 3. Retraction of cylinder 13 from fully extended condition 13b in Figure 2 imparts clockwise rotation of crank member 4 about first main axis 3 while tool support remains in a generally horizontal position supported on crank member 4 and wheel assembly 32.
Figure 3, in dotted outline, shows crank member 4 and tool support db with cylinder 13 in fully extended condition 13b corresponding to Figure 2.
Contraction of cylinder 13b, with lock arm in unlocked condition 7b, rotates both of crank member 4 clockwise about first main axis 3 from first crank position Sa towards the second crank position Sc shown in solid outline in Figure 3. At crank position Sc, stop 12 re-engages abutting end 11 and prevents further rotation of both of crank member 4 about first axis 3 and tool support 6 about second axis 18 forming the lowermost working position limit. In the range shown in Figure 3 tool support 6 moves from maximally elevated position 6b to a minimally elevated position 6c in response to extension and contraction of cylinder 13.
Tool support 6 is maintained in generally horizontal working positions between position 6b and working limit 6c while supported on wheel assembly 32.
Wheel assembly 32, in Figure 3, is shown in dotted outline at 32b which corresponds to tool support position 6b in relation to ground level 26b. As cylinder 13 is retracted from position 13b to position 13c wheel linkage 16 rotates wheel -S-assembly 32 from position 32b to position 32c in relation to ground level 26c thereby lowering tool support 6 from position 6b to position 6c.
Figure 4 shows an alternative embodiment in a position corresponding to Figure 2 where cylinder 13 is replaced by co-acting cylinders 19, pivotally attached between crank member 4 and packer arm 21 for extension and contraction along line B-B', and 28, pivotally attached between crank member 4 and frame element 1 at a suitable location, not shown, for extension and contraction along line A-A'.
Operation of cylinder 29 alone will rotate tool support 6 between maximally elevated position 6b and a generally upright transport position corresponding to Figure 1, not shown.
Cylinder 28 may optionally be restrained by lock arm 7 or other conventional means.
Operation of both of cylinders 28 and 29, with lock arm 7 unlocked, as shown, will adjust the height of tool support 6 above the ground from the position 6b shown to a position corresponding to Figure 3, not shown.
Numerous modifications can be made in the specific expedients described without departing from the invention, the scope of which is defined in the following claims.
Contraction of cylinder 13b from the position of Figure 2, while maintaining lock arm 7 in the locked position 7a, rotates tool support 6b counter-clockwise about second axis 18 while crank member 4 remains in first position Sa. Wheel linkage 16 rotates packer arm 21 from position 21b, with packer 20 in position 20b in contact with the ground, counter-clockwise about axis 22 towards elevated position 32a in relation to tool support 6.
Release of crank member 4 by rotation of lock arm 7 from locked position 7a to unlocked position 7b (shown in solid outline in Figure 2) releases crank member 4 for rotation about main first axis 3. Retraction of cylinder 13 from fully extended condition 13b in Figure 2 imparts clockwise rotation of crank member 4 about first main axis 3 while tool support remains in a generally horizontal position supported on crank member 4 and wheel assembly 32.
Figure 3, in dotted outline, shows crank member 4 and tool support db with cylinder 13 in fully extended condition 13b corresponding to Figure 2.
Contraction of cylinder 13b, with lock arm in unlocked condition 7b, rotates both of crank member 4 clockwise about first main axis 3 from first crank position Sa towards the second crank position Sc shown in solid outline in Figure 3. At crank position Sc, stop 12 re-engages abutting end 11 and prevents further rotation of both of crank member 4 about first axis 3 and tool support 6 about second axis 18 forming the lowermost working position limit. In the range shown in Figure 3 tool support 6 moves from maximally elevated position 6b to a minimally elevated position 6c in response to extension and contraction of cylinder 13.
Tool support 6 is maintained in generally horizontal working positions between position 6b and working limit 6c while supported on wheel assembly 32.
Wheel assembly 32, in Figure 3, is shown in dotted outline at 32b which corresponds to tool support position 6b in relation to ground level 26b. As cylinder 13 is retracted from position 13b to position 13c wheel linkage 16 rotates wheel -S-assembly 32 from position 32b to position 32c in relation to ground level 26c thereby lowering tool support 6 from position 6b to position 6c.
Figure 4 shows an alternative embodiment in a position corresponding to Figure 2 where cylinder 13 is replaced by co-acting cylinders 19, pivotally attached between crank member 4 and packer arm 21 for extension and contraction along line B-B', and 28, pivotally attached between crank member 4 and frame element 1 at a suitable location, not shown, for extension and contraction along line A-A'.
Operation of cylinder 29 alone will rotate tool support 6 between maximally elevated position 6b and a generally upright transport position corresponding to Figure 1, not shown.
Cylinder 28 may optionally be restrained by lock arm 7 or other conventional means.
Operation of both of cylinders 28 and 29, with lock arm 7 unlocked, as shown, will adjust the height of tool support 6 above the ground from the position 6b shown to a position corresponding to Figure 3, not shown.
Numerous modifications can be made in the specific expedients described without departing from the invention, the scope of which is defined in the following claims.
Claims (33)
1. ~A farm implement frame comprising:
a frame element supported out of contact with the ground for connection to a farm vehicle or cart, at least one crank member mounted on said frame element and rotatable about a main first axis parallel to said frame element between a first and a further position, locking means to selectively restrain said crank member in the said first position, tool support means pivotally supported on said crank member for rotation about a second axis parallel to and offset from said main first axis between working positions at different heights above the ground, and between such working positions and a transport position spaced from the ground, an actuator operable when said locking means selectively does not restrain said crank member in said first position to rotate both of said crank member about said first axis between said first and said further position, and said tool support about said second axis, in conjunction thereby to change the height of the tool support above the ground in its working positions, and operable when said locking means restrains said crank member in said first position, to rotate said tool support means about said second axis, between the working positions to the said transport position.
a frame element supported out of contact with the ground for connection to a farm vehicle or cart, at least one crank member mounted on said frame element and rotatable about a main first axis parallel to said frame element between a first and a further position, locking means to selectively restrain said crank member in the said first position, tool support means pivotally supported on said crank member for rotation about a second axis parallel to and offset from said main first axis between working positions at different heights above the ground, and between such working positions and a transport position spaced from the ground, an actuator operable when said locking means selectively does not restrain said crank member in said first position to rotate both of said crank member about said first axis between said first and said further position, and said tool support about said second axis, in conjunction thereby to change the height of the tool support above the ground in its working positions, and operable when said locking means restrains said crank member in said first position, to rotate said tool support means about said second axis, between the working positions to the said transport position.
2. ~The farm implement frame as claimed in claim 1 further comprising a ground engaging element further supporting the said tool support means out of contact with the ground.
3. ~The farm implement frame as claimed in claim 2 wherein said ground engaging element is adjustably mounted on said tool support means and rotation of said tool support means about said second axis varies the disposition of said ground engaging element relative to said tool support means.
4. ~The farm implement frame as claimed in claim 3 wherein said ground engaging element comprises a press wheel assembly pivotally mounted on said tool support means about a third axis parallel to and substantially offset from both of said first and said second axis.
5. ~The farm implement frame as claimed in claims 3 or 4 wherein said actuator comprises a first extensible linkage extending between said crank member and said ground engaging element.
6. ~The farm implement frame as claimed in claim 5 wherein said actuator further comprises a second extensible linkage extending between said crank member and said frame member operating selectively in conjunction with and separately from said first extensible linkage.
7. ~The farm implement frame as claimed in claim 6 wherein said tool support means is generally upright in said transport position.
8. ~The farm implement frame as claimed in claim 1 wherein said actuator comprises an extensible linkage extending between said crank member and said tool support means.
9. ~The farm implement frame as claimed in claim 8 wherein said extensible linkage comprises hydraulic cylinder means.
10. ~The farm implement frame as claimed in claim 9 further comprising a ground engaging element further supporting the said tool support means out of contact with the ground.
11. ~The farm implement frame as claimed in claim 10 wherein said ground engaging element is adjustably mounted on said tool support means and rotation of said tool support means about said second axis varies the disposition of said ground engaging element relative to said tool support means.
12. ~The farm implement frame as claimed in claim 11 wherein said ground engaging element comprises a press wheel assembly pivotally mounted on said tool support means about a third axis parallel to and substantially offset from both of said first and said second axis.
-8-~
-8-~
13. ~The farm implement frame as claimed in claim 12 further comprising a wheel linkage between said crank member and said press wheel assembly operable to change the height of the tool support means above the ground.
14. ~The farm implement frame as claimed in claim 13 wherein rotation of said tool support means about said second axis imparts a corresponding rotation of said ground engaging element relative to said tool support means
15. ~The farm implement frame as claimed in claim 14 wherein said wheel linkage is operable to maintain the said tool support means generally horizontal to the ground when said locking means does not restrain said crank member in said first position.
16. ~The farm implement frame as claimed in claim 1 further comprising an abutment between said crank member and said tool support means to limit relative rotation therebetween.
17. ~The farm implement frame as claimed in claim 16 wherein said abutment limits relative rotation at said further position.
18. ~The farm implement frame as claimed in claim 17 wherein said abutment also limits relative rotation in said transport position.
19. ~The farm implement frame as claimed in claim 18 further comprising a stop between said crank member and said frame element which limits rotation of said crank about said first axis in said first position.
20. ~The farm implement frame as claimed in claim 19 further comprising a ground engaging element further supporting the said tool support means out of contact with the ground adjustably mounted on said tool support means whereby rotation of said tool support means about said second axis varies the disposition of said ground engaging element relative to said tool support means.
21. ~The farm implement frame as claimed in claim 20 wherein said ground engaging element comprises a press wheel assembly pivotally mounted on said tool~
support means about a third axis parallel to and substantially offset from both of said first and said second axis.
support means about a third axis parallel to and substantially offset from both of said first and said second axis.
22. The farm implement frame as claimed in claim 21 wherein said actuator comprises a first extensible linkage extending between said crank member and said ground engaging element.
23. The farm implement frame as claimed in claim 22 wherein said actuator further comprises a second extensible linkage extending between said crank member and said frame member operating selectively in conjunction with and separately from said first extensible linkage.
24. The farm implement frame as claimed in claim 23 wherein said tool support means is generally upright in said transport position.
25. The farm implement frame as claimed in claim 1 wherein said actuator comprises an extensible linkage extending between said crank member and said tool support means.
26. The farm implement frame as claimed in claim 25 wherein said extensible linkage comprises hydraulic cylinder means.
27. The farm implement frame as claimed in claim 26 further comprising a ground engaging element further supporting the said tool support means out of contact with the ground.
28. The farm implement frame as claimed in claim 27 wherein said ground engaging element is adjustably mounted on said tool support means and rotation of said tool support means about said second axis varies the disposition of said ground engaging element relative to said tool support means.
29. The farm implement frame as claimed in claim 28 wherein said ground engaging element comprises a press wheel assembly pivotally mounted on said tool support means about a third axis parallel to and substantially offset from both of said first and said second axis.
30. The farm implement frame as claimed in claim 29 further comprising a wheel linkage between said crank member and said press wheel assembly operable to change the height of the tool support means above the ground.
31. The farm implement frame as claimed in claim 30 wherein rotation of said tool support means about said second axis imparts a corresponding rotation of said ground engaging element relative to said tool support means.
32. The farm implement frame as claimed in claim 31 wherein said wheel linkage is operable to maintain the said tool support means generally horizontal to the ground when said locking means does not restrain said crank member in said first position.
33. The farm implement frame as claimed in claim 32 wherein said tool support means is generally upright in said transport position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002132072A CA2132072C (en) | 1994-09-14 | 1994-09-14 | Farm implement frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002132072A CA2132072C (en) | 1994-09-14 | 1994-09-14 | Farm implement frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2132072A1 CA2132072A1 (en) | 1996-03-15 |
| CA2132072C true CA2132072C (en) | 2005-06-07 |
Family
ID=4154318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002132072A Expired - Lifetime CA2132072C (en) | 1994-09-14 | 1994-09-14 | Farm implement frame |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2132072C (en) |
-
1994
- 1994-09-14 CA CA002132072A patent/CA2132072C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2132072A1 (en) | 1996-03-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDC | Correction of dead application (reinstatement) | ||
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20140915 |