Hitch mechanism

Details Hitch mechanism Hitch mechanism

1998-04-07

1999-12-07

Mai, Lanna

Land vehicles

Wheeled

Articulated vehicle

172605, 172471, 172439, A01B 63102

Patent

active

059970243

ABSTRACT:
A hitch mechanism includes a coupler frame supporting a plurality of coupler devices for coupling with an implement. A fixed length link and three variable length links are attached to the coupler frame, has a first end pivotally coupled to the vehicle and a second end pivotally coupled to a central part of the coupler frame. Three variable length links, each variable length link having a first end pivotally coupled to the vehicle and a second end pivotally coupled to the coupler frame. The three variable length links preferably extend generally parallel to each other and are spaced apart in a triangular array, and the fixed length link is positioned near the center of the array. The three variable length links include an upper link and left and right lower links. The three variable length links are preferably hydraulic cylinders which can be extended and retracted.

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Wilcox Agri-Products, "3-Point Hitch for Challenger Tractors" four pages of marketing literature, no publication date.
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Motion Systems Corporation,"Additional Ball Drive Actuators and Ball Screws", http://www.motionsystem.com/addball.htm, publication dated unknown -printout date Mar. 20, 1998.
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