Constant force spring system

Details Constant force spring system Constant force spring system

1993-08-13

1994-10-04

Oberleitner, Robert J.

Spring devices

Torsion

Coil

267172, 242342, 360132, F16F 106

Patent

active

053519418

ABSTRACT:
A constant force spring system having a coil spring with first and second arms, a ramp for the second arm to contact and a pin mounted on a base. The coil spring is mounted on the pin and the ramp is positioned such that the second arm of the spring contacts the sloped surface of the ramp. When a force is applied to the first arm of the spring it tends to move the second arm up the sloped ramp. This interaction of the second arm and sloped surface produces a reaction force. The slope angle and ramp configuration is configured such that there are equal and opposite forces produced by the spring system.

REFERENCES:
patent: 3446529 (1969-05-01), Mills
patent: 4986678 (1991-01-01), Hwang
patent: 4990008 (1991-02-01), Hwang
patent: 4998833 (1991-03-01), Chiman
patent: 5084799 (1992-01-01), Moo Yeol et al.

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