Motor vehicles – Vehicle trains – Drive means betwen vehicles through coupling
Patent
1987-11-20
1988-12-27
Mitchell, David M.
Motor vehicles
Vehicle trains
Drive means betwen vehicles through coupling
172 47, 172125, 172677, B60K 2510, A01B 7106
Patent
active
047934301
ABSTRACT:
A hitch adapter is used to couple a PTO-driven implement to a three-point hitch arrangement of a towing tractor. The implement includes a transmission housing mounted for rotation about an upright axis that passes through a ball connection effected between a drawbar of the hitch adapter and the implement tongue. The tractor power take-off shaft is connected by a telescopic drive shaft to an input shaft supported by the transmission housing for rotation about an axis extending perpendicular to and intersecting said upright axis. Provided for steering the transmission housing for maintaining the input shaft disposed in parallel relationship to the tractor power take-off shaft is a steering assembly including a pair of steering arms depending from the housing and engaging diametrically opposite locations of a cylindrical guide surface of a guide member fixed to the drawbar with the guide surface arranged concentrically to an axis located in a plane containing the previously mentioned axes and intersecting the upright axis at the ball connection.
REFERENCES:
patent: 4366877 (1983-01-01), Vissers et al.
patent: 4525987 (1985-07-01), Werner et al.
patent: 4714123 (1987-12-01), Ermacora et al.
patent: 4738461 (1988-04-01), Stephenson et al.
Richardson Craig A.
Stephenson Roger D.
Walters James C.
Deere & Company
Hill Mitchell J.
Mitchell David M.
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