Spring loading systems

Details Spring loading systems Spring loading systems

1976-04-05

1977-12-27

Marbert, James B.

Spring devices

Torsion

Coil

185 39, 267167, F16F 104

Patent

active

040651134

ABSTRACT:
A spring loading system achieves substantially zero-rate by winding an unstressed, say flat, spring strip onto a former of constant curvature so as to pass from the unstressed state through a region of predetermined shape to conform with the former. The net energy expended/released in winding/unwinding the strip is directly related to the amount of strip wound onto/off the former, whatever the total length of strip wound. The system is coupled to a driven member by an inextensible string wound on the former in opposition to the spring which is held in tension by the torque exerted on the former by the wound spring.

REFERENCES:
patent: 3039318 (1962-06-01), Clarke
patent: 3291474 (1966-12-01), Clarke
patent: 3698516 (1972-10-01), Williams

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