Seat belt retractor rewind spring assembly

Details Seat belt retractor rewind spring assembly Seat belt retractor rewind spring assembly

1987-03-19

1988-10-11

Halvosa, George E. A.

Spring devices

Torsion

Coil

185 45, 267272, 267290, 297475, 368140, F16F 110

Patent

active

047765747

ABSTRACT:
This invention relates to an improved seat belt retractor rewind spring assembly. In accordance with this invention, a rewind spring assembly is provided having the "bridling" effect wherein the coiled flat strip spring is retained by a spring cap which exerts an outwardly directed bending load on the end of the spring which engages the cap. This bridling effect has been found to increase the efficiency of the coil spring. The rewind spring assembly according to this invention improves over prior art designs in that completely automated assembly is possible through the provision of a novel spring cap design, assembly fixture and assembly process.

REFERENCES:
patent: 522064 (1894-06-01), Keuffel
patent: 934114 (1909-09-01), Weaver
patent: 2714019 (1955-07-01), Williams et al.
patent: 3091447 (1963-05-01), Donkin
patent: 4205807 (1980-06-01), Shimogawa et al.
patent: 4285478 (1981-08-01), Stamboulian
patent: 4518130 (1985-05-01), Gloomis

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