Trailer ramp mechanism

Details Trailer ramp mechanism Trailer ramp mechanism

1995-11-06

1997-02-04

Lisehora, James A.

Bridges

Gangway, ramp, or dock leveler

414537, 296 61, B65G 6928, B62D 3303

Patent

active

055985955

ABSTRACT:
A mechanism is provided for attachment to a pivotable ramp of a trailer to assist in the manual lifting and lowering of the ramp. The mechanism allows the tension of a pair of coil springs positioned on a guide rod to be adjusted and a slotted spring stop permits lateral positioning of the ramp to accommodate various wheel bases of the equipment to be loaded.

REFERENCES:
patent: 3756440 (1973-09-01), Raap et al.
patent: 3972428 (1976-08-01), Love, Jr. et al.
patent: 4657233 (1987-04-01), Vroom
patent: 5145310 (1992-09-01), Calzone
patent: 5536058 (1996-07-01), Otis

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