Variable pivot towing device

Details Variable pivot towing device Variable pivot towing device

1996-11-21

1999-11-16

Ellis, Christopher P.

Material or article handling

Traversing hoist type

Tow truck type

280402, 414226, B65G 100, B66C 100, B60P 306

Patent

active

059846160

ABSTRACT:
A towing device, adapted to be mounted to a chassis of a vehicle, features a bi-planar rotation mechanism which allows a telescoping beam to dynamically pivot about two orthogonal axes. The towing device includes a sub-frame mounted to the chassis. An underframe is pivotally attached to the sub-frame to move between a retracted position, adjacent to the sub-frame, and an extended position, distal from the sub-frame. The telescoping beam extends from the underframe and terminates in a carriage, which is adapted to support the wheels of a towed vehicle. In this fashion, the telescoping beam allows the towed vehicle to dynamically pivot about two orthogonal axes which avoids "high centering" of the towing vehicle.

REFERENCES:
patent: 3924763 (1975-12-01), Pigeon
patent: 3929237 (1975-12-01), Schaedler
patent: 4186938 (1980-02-01), Youngblood
patent: 4679978 (1987-07-01), Holmes et al.
patent: 4993911 (1991-02-01), Grant
patent: 5064078 (1991-11-01), Van Staveren
patent: 5123802 (1992-06-01), Bell
patent: 5326216 (1994-07-01), Russ
patent: 5352083 (1994-10-01), Roberts et al.

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