Safety belt retractor

Details Safety belt retractor Safety belt retractor

1990-02-14

1991-12-10

Chen, Jose V.

Chairs and seats

Body or occupant restraint or confinement

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

2421074A, A62B 3500, A47C 3100

Patent

active

050711946

ABSTRACT:
A safety belt retractor includes a webbing sensitive blocking mechanism for blocking rotation of the belt spool in the belt withdrawal direction. The blocking mechanism includes an inertia disc connected via a coupling pawl and an externally toothed coupling wheel to the control wheel. Relative rotation between the inertia disc and the control wheel results in actuation of the blocking mechanism. When a predetermined centrifugal force is exceeded the coupling pawl comes out of engagement with the external toothing of the coupling wheel. The mass disc is uncoupled from the control wheel, preventing actuation of the blocking mechanism.

REFERENCES:
patent: 3206137 (1965-09-01), Snyderman
patent: 4109881 (1978-08-01), Fohl
patent: 4172568 (1979-10-01), Yamanashi et al.
patent: 4342619 (1983-07-01), Fohl
patent: 4422594 (1983-12-01), Honl
patent: 4736902 (1988-04-01), Doty
patent: 4834208 (1989-05-01), Kagami et al.

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