Land vehicles – Wheeled – Attachment
Patent
1986-04-11
1987-11-24
Bertsch, Richard A.
Land vehicles
Wheeled
Attachment
280801, B60R 2110
Patent
active
047083646
ABSTRACT:
Seat belt retraction apparatus including a seat belt retractor mechanism, an inertia sensor and an electrical circuit interconnected with the inertia sensor and the retractor mechanism. The retractor mechanism includes a reel and a reel locking mechanism for locking the reel against unwinding of the strap of the seat belt wound around the reel. The illustrated reel locking mechanism includes a pawl which is engageable with ratchet wheels on the reel to prevent the reel from paying out the strap. This pawl is movable between a first position in which the pawl is out of locking engagement with the ratchet wheels and a second position in which the pawl engages the wheels to lock the reel against extension of the strap. An electromagnetic device including a coil is provided for controlling movement of the pawl. The inertia sensor is carried on the vehicle chassis and has a piezoelectric disc. The sensor also includes an inertia weight such as a pendulum for changing the shape of the disc so that the sensor provides an output signal in response to a change in velocity of the vehicle. The electrical circuit is responsive to the operation of the inertia sensor to energize the coil.
REFERENCES:
patent: 3764161 (1973-10-01), Bright et al.
patent: 3797603 (1974-03-01), Loomba
patent: 4209186 (1980-06-01), Close
patent: 4235455 (1980-11-01), Collins et al.
patent: 4280584 (1981-07-01), Makishima
patent: 4315639 (1982-02-01), Booth et al.
patent: 4361294 (1982-11-01), Doty
patent: 4451062 (1982-05-01), Ziv
patent: 4461493 (1984-07-01), Doty
patent: 4545546 (1985-10-01), Kawaguchi et al.
Bertsch Richard A.
Gateway Industries, Inc.
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