Retraction locking safety belt retractor

Details Retraction locking safety belt retractor Retraction locking safety belt retractor

1976-05-21

1977-10-11

Gilreath, Stanley N.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

A62B 3500, B65H 7548

Patent

active

040531163

ABSTRACT:
A safety belt retractor reel which is automatically locked against belt extraction in response to certain conditions or manipulation is provided with a mechanism for releasably locking the reel against belt retraction in response to a predetermined manipulation of the belt. The mechanism includes a ratchet wheel rotatable with the reel and a pawl spring biased into engagement with the ratchet wheel to lock the reel against retraction rotation. The pawl has a locking shoulder and a cam edge. An actuator member is slip drive coupled to the reel and has a radial arm carrying a transversely projecting follower which engages the cam surface to retract the pawl with the reel belt extraction rotation. A locking member is slip drive coupled to the reel and has a radial arm carrying a transversely projecting locking element movable out of and into engagement with the locking shoulder with the extraction and retraction rotation of the reel.

REFERENCES:
patent: 3491966 (1970-01-01), Curran et al.
patent: 3635420 (1972-01-01), Romanzi
patent: 3834646 (1974-09-01), Heath
patent: 3851836 (1974-12-01), Sprecher
patent: 3858826 (1975-01-01), Sprecher
patent: 3869098 (1975-03-01), Sprecher

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