Spring-loaded barrel, in particular for a seat belt retractor

Details Spring-loaded barrel, in particular for a seat belt retractor Spring-loaded barrel, in particular for a seat belt retractor

1989-11-27

1991-02-26

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

185 45, B65H 7548, F03G 108

Patent

active

049955675

ABSTRACT:
The barrel, which consists, inter alia, of a casing (10) defining a chamber (100), of a coverplate (20) with an orifice (21), of a hub (30) and of a spiral spring (40), comprises a device (50) for temporarily immobilizing the hub (30) in this chamber (100) which consists of male (51) and female (52) complementary elements which are intended to be engaged in each other and are carried by the base (11) of the casing and the hub (30), where these male elements (51) are fragile and are intended to break as a result of the action exerted upon the hub (30) through the orifice (21), once the spring has been tensioned.

REFERENCES:
patent: 2532264 (1950-11-01), Smith
patent: 3033488 (1962-05-01), Weber
patent: 4159809 (1979-07-01), Rawson
patent: 4340191 (1982-07-01), Zavatkay
patent: 4487379 (1984-12-01), Drechsler
patent: 4771965 (1988-09-01), Ballet
Research Disclosure, No. 257, 9/1985, p. 480, Emsworth, Hampshire, GB; "Retraction Spring Cassette for Inertia Reel".

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