Linear locking seat belt retractor

Chairs and seats – Body or occupant restraint or confinement – Safety belt or harness; e.g. – lap belt or shoulder harness

Patent

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Details

280804, 280806, 297479, A62B 3500, B60R 2110

Patent

active

042136520

ABSTRACT:
Mechanism for retracting a vehicle seat belt and locking the belt against extension includes a track mounted on the vehicle body and a belt carriage mounted on the track for movement in the belt extending and retracting directions. A locking pawl is mounted on the belt carriage and is selectively actuatable to a locked position engaging teeth on the track to lock the belt carriage against belt extending movement. A spring biased reel mounted on the vehicle body winds a cable having its end attached to the locking pawl so that winding of the cable urges the carriage in the belt retracting direction. A reel locking means selectively locks the reel against rotation in the cable unwinding direction so that the cable is tensioned upon attempted extension of the belt to actuate the pawl to the locked position. The reel locking means may be responsive to the rate of belt unwinding or a condition of vehicle deceleration.

REFERENCES:
patent: 3058687 (1962-10-01), Bentley
patent: 3292744 (1966-12-01), Replogle
patent: 3439932 (1969-04-01), Lewis et al.
patent: 3526431 (1970-09-01), Boedigheimer et al.
patent: 3535001 (1970-10-01), Lewis et al.
patent: 3557914 (1971-01-01), Tanaka
patent: 3610361 (1971-10-01), Pringle
patent: 3645549 (1972-02-01), Jantzen
patent: 3667805 (1972-06-01), Apri
patent: 3667806 (1972-06-01), Sprecher
patent: 3770078 (1973-11-01), Keppel et al.
patent: 3869173 (1975-03-01), Haller et al.
patent: 4057200 (1977-11-01), Ubukata et al.

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