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US 4,282,936 AGranted
Quick acting coupler for cultivator attachment
OwnerDaniel M. Zuhone, Mark S. Colemaninventors
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OwnerDaniel M. Zuhone, Mark S. Colemaninventors
Estimating the term…
A quick acting coupler for a cultivator attachment, such as a cultivator fender, shield, or the like, in which the attachment is carried by a mounting frame with the latter being securable to the tool or cultivator bar of a cultivator implement for coupling of the attachment to the cultivator at a desired location on the cultivator. The coupler includes a hitch member for each attachment, each hitch member being securable to the tool bar of the cultivator at a desired position therealong. The mounting frame is connected to the hitch member by inserting one or more headed pins carried by the mounting frame into corresponding elongate vertical slots in the hitch member. The vertical slots each have an enlarged portion at their upper ends so as to receive the head of a respective headed pin and a narrower lower portion so as to receive the shank of the headed pin. Thus the headed pins, when properly installed with their shanks received in the narrow portions of their respective slots, effectively prevent fore and aft and sidewise relative movement between the hitch member and the mounting frame. A pin is then inserted through holes in both the hitch member and the mounting frame which are in line with one another thus preventing vertical movement between the hitch member and the mounting frame. For uncoupling, this last-mentioned pin is removed and the mounting frame in the cultivator attachment mounted thereon is lifted clear of the cultivator as a unit.
A system for easily and quickly coupling and uncoupling a cultivator attachment, such as a cultivator shield or fender, to a cultivator, the latter including a cultivator frame adapted to be hitched to a tractor or other prime mover for movement of the cultivator through a field to be cultivated, said cultivator frame including a generally horizontal tool bar extending transversely of the direction of travel of the prime mover substantially the entire width of said cultivator, said coupling system comprising a hitching member adapted to be securely fastened to said tool bar at any desired location therealong for attachment of said cultivator attachment to said tool bar at any desired position along said tool bar, a mounting frame for said cultivator attachment, said mounting frame including a vertical member having a vertical portion thereof adapted to be disposed relative to said hitching member for securement of said cultivator attachment to said cultivator frame, and quick acting fastening means for the ready securement of said hitching member and said vertical member together and for the ready uncoupling thereof, said fastening means comprising pin and slot fastener means including a headed pin extending in generally transverse direction from either said vertical member or from said hitching member, said headed fastener having a shank and an enlarged head on said shank with said head being spaced from the member on which said pin is secured, the other of said members having a lot therein for reception of said headed fastener, said slot including an enlarged portion for reception of said head and a narrower portion for receiving said shank, further, said hitching member and said vertical member each having a hole therethrough, these last-said holes being in register with one another when said headed fastener is received in said slot, and a removable fastener insertable through said holes whereby upon said headed fastener being inserted in its respective slot and upon said removable fastener inserted through its respective holes, said cultivator attachment is rigidly secured to said tool bar at said desired position therealong.
A frame for mounting a cultivator fender or shield to cultivator, the latter including a transverse beam extending perpendicular to the direction of travel of the cultivator as it is moved through a field for cultivation purposes, said mounting frame including a upright member adapted to be hitched to said transverse beam of said cultivator, and a linkage interconnected between said vertical member and the rear portion of said shield, said linkage comprising a pair of links pivotally connected together, one of said links being pivotally connected to said upright member and the other of said links being privotally secured to the rear portion of said shield, said linkage holding the rear portion of said shield in a desired postion and yet permitting the cultivator fender to freely move upwardly when said fender encounters an obstruction in the field, said linkage further comprising means for preventing said links of said linkage from being in line with one another thereby to ensure that said shield is at all times free to move upwardly.
Dependencies are inferred from the claim text.