Assist apparatus for ramps

Details Assist apparatus for ramps Assist apparatus for ramps

1985-04-19

1987-04-14

Spar, Robert J.

Spring devices

Torsion

Coil

16306, 296 61, 414537, B65G 6700

Patent

active

046572333

ABSTRACT:
A coil spring, mounted within a cylinder and axially coincident with the pivot axis between a trailer and a ramp pivotally attached thereto, exerts a force angularly proportional to angular deviation of the ramp from its upright position to reduce the apparent weight of the ramp during manual repositioning of the ramp.

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