Webbing retractor

Details Webbing retractor Webbing retractor

1985-11-29

1986-07-01

Levy, Stuart S.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421074R, A62B 3502

Patent

active

045975469

ABSTRACT:
In a webbing retractor used for a seatbelt system protecting an occupant in an emergency situation of a vehicle, a locking wheel is rotated, following a rotation of a webbing takeup shaft, and a locking means prevents the takeup shaft from webbing-unwinding rotation when lag in rotation of the locking wheel occurs relative to the takeup shaft in the emergency situation of the vehicle. Opposed to the locking wheel is a control means which can be biased selectively in either direction of approach to the locking wheel or direction of separation therefrom in accordance with a webbing-winding amount and a webbing-unwinding amount.
Accordingly, the webbing retractor can be used properly as an Automatic Locking Retractor and an Emergency Locking Retractor at need.

REFERENCES:
patent: 3598336 (1971-08-01), Frost
patent: 3858826 (1975-01-01), Sprecher
patent: 3897913 (1975-08-01), Hall
patent: 3999723 (1976-12-01), Magyar
patent: 4436255 (1984-03-01), Matsui
patent: 4463917 (1984-08-01), Mori et al.

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