Seat belt retractor locking mechanism using deformable force red

Details Seat belt retractor locking mechanism using deformable force red Seat belt retractor locking mechanism using deformable force red

1992-01-27

1994-04-05

Saether, Flemming

Chairs and seats

Body or occupant restraint or confinement

Safety belt or harness; e.g., lap belt or shoulder harness

297478, 280806, B60R 2228

Patent

active

052998541

ABSTRACT:
The seat belt retractor of the present invention is provided with a fragile portion .gamma. near a supporting section of a rotating shaft 21 on two side walls 2b (and 2a--not shown) of a case 2. The fragile portion .gamma. undergoes plastic deformation or rupture when a load exceeding a predetermined value is applied on a seat belt 1 through the rotating-squeezing member 20 and a rotating shaft 21 by pulling force. When the fragile portion .gamma. undergoes plastic deformation or rupture, the rotating-squeezing member 20 is moved toward loading direction, and the rotating-squeezing member 20 is separated from the sliding-squeezing member 19. Then, the rotating-squeezing member 20 is turned over, and the squeezing force on the seat belt 1 by the rotating-squeezing member 20 and the sliding-squeezing member 19 is alleviated. As the result, the application of highly concentrated load on the seat belt can be avoided.

REFERENCES:
patent: 3481624 (1969-12-01), Barecki
patent: 3973650 (1976-08-01), Nagazumi
patent: 4457251 (1984-07-01), Weman
patent: 4687253 (1987-08-01), Ernst
patent: 5076610 (1991-12-01), Struck
patent: 5154368 (1992-10-01), Fujimura

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