Seat belt retractor

Details Seat belt retractor Seat belt retractor

1997-06-09

1998-10-13

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 22405

Patent

active

058200606

ABSTRACT:
A seat belt retractor incorporated in a seat back that does not create noise, even with the vibration of a vehicle. A reel is supported by a frame, and reel rotation is prevented by a locking mechanism. In the locking mechanism, rotation of a gear wheel is prevented by an acceleration sensor, and a trigger is pivoted through a clutch wheel to engage a tooth portion with teeth on a lock ring, thereby stopping rotation of an intermediate wheel. Ratchets are supported by a ratchet wheel associated with the intermediate wheel. Since the ratchet wheel rotates even after stopping rotation of the intermediate wheel, the ratchets move outward whereby a stopper is pressed down. This cancels the engagement between a rack on a sensor holding portion and a rack of the stopper.

REFERENCES:
patent: 3938754 (1976-02-01), Stephenson et al.
patent: 4077584 (1978-03-01), Lafont
patent: 4273210 (1981-06-01), Nitzbon
patent: 4524924 (1985-06-01), Proctor
patent: 4978087 (1990-12-01), Tauber
patent: 5289986 (1994-03-01), Hoshihara
patent: 5495994 (1996-03-01), Rumpf et al.

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