Safety belt retractor

Details Safety belt retractor Safety belt retractor

1993-03-09

1994-07-12

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 2234

Patent

active

053281209

ABSTRACT:
The safety belt retractor includes an automatic blocking mechanism for securing a child's seat in the vehicle. A reduction gearing (24, 28, 30, 34, 38; 74, 78, 88) having a worm wheel (28, 78) reduces the belt reel rotation on transmission to a cam gear wheel (38; 88) rotatably mounted in the retractor frame (10) remote from the belt reel. On rotation of the belt reel, the cam gear wheel performs at the most one revolution. On further withdrawal of webbing, the cam member (42; 92) of the cam gear wheel (38; 88) tips a rocking lever (46; 96) which thereupon initiates a blocking of the belt reel against rotation in the direction of the webbing withdrawal. After a substantially complete winding back on of the webbing, the blocking is released again. The system is compact, easy to mount and can be set to various switch-over points by replacing only one component, i.e. the cam gear wheel.

REFERENCES:
patent: 4726539 (1988-02-01), Schmidt et al.
patent: 4749143 (1988-06-01), Tsukamoto et al.
patent: 4809926 (1989-03-01), Koike
patent: 4811912 (1989-03-01), Takada

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