Land vehicles – Wheeled – Articulated vehicle
Patent
1979-03-05
1980-12-16
Love, John J.
Land vehicles
Wheeled
Articulated vehicle
280402, 414563, B60D 114
Patent
active
042392500
ABSTRACT:
A deformable hitch for towing vehicles having a mechanism thereon for positively urging the hitch into a desired orientation, such that the hitch bottom bar which is connected to a towing vehicle by two arms is urged to remain in a desired position parallel to the rear of the towing vehicle. The mechanism comprises two tensile members and a lever member. The lever member is attached to the bottom bar and extends outwardly therefrom. The tensile members are each attached respectively to a medial point along one of the arms of the hitch and to the lever member, such that the tension on each of the tensile members is equal whenever the bottom bar is in the desired parallel position and thus the hitch is in a state of equilibrium. In addition, the tension on each of the tensile members is different whenever the bottom bar is in a position other than the desired parallel position, thereby urging the bottom bar to return to the desired parallel position.
REFERENCES:
patent: 1435063 (1922-11-01), Holmes
patent: 2541582 (1951-02-01), Hawkins
patent: 2585768 (1952-02-01), Ham
patent: 2796183 (1957-06-01), Cline et al.
patent: 2913131 (1959-11-01), Holmes
patent: 3000652 (1961-09-01), Hawkins
patent: 3504811 (1970-04-01), Wegener et al.
patent: 3796443 (1974-03-01), Crutchfield
patent: 3806162 (1974-04-01), Milner
patent: 4022489 (1977-05-01), Shattles et al.
Love John J.
McGiehan Donn
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