Chairs and seats – Movable back – Tiltable
Patent
1988-06-01
1989-07-11
Brown, Peter R.
Chairs and seats
Movable back
Tiltable
297216, 297379, B60N 104
Patent
active
048465267
ABSTRACT:
An inertia latch for a vehicle seat is provided. The latch allows free pivotal movement of the seat back forwardly under low angular accelerations and restrains pivotal movement of the seat back forwardly under high angular accelerations. The latch includes a slip block pivotally mounted with respect to the vehicle along a third pivotal axis. The slip block is angularly biased against a stop generally fixed with respect to the pivotal axis of the seat back with the seat cushion. A pendulum pivotally connected on a pivot pin away from the pivotal axis of the seat back with the seat cushion. When the seat back is pivotally moved forward under low accelerations the pendulum contacts the slip block to pivot the slip block away from the second stop to allow the seat back to pivot forward. Under high (decelerations) the pendulum pivots on the second pivot pin to contact the slip block to pivot toward the second stops and thereby restrains forward movement of the seat back.
REFERENCES:
patent: 3628831 (1971-12-01), Close
patent: 3711056 (1973-01-01), Gmeiner et al.
patent: 3848923 (1974-11-01), Dehler
patent: 3972564 (1976-08-01), Arlauskas et al.
patent: 4082353 (1978-04-01), Hollowell
patent: 4147386 (1979-04-01), Stolper
patent: 4707010 (1987-11-01), Croft
Brown Peter R.
General Motors Corporation
Helms Ernest E.
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