Inertial lock mechanism for vehicle seat reclining apparatus

Details Inertial lock mechanism for vehicle seat reclining apparatus Inertial lock mechanism for vehicle seat reclining apparatus

1991-05-21

1992-11-17

Dorner, Kenneth J.

Chairs and seats

Movable back

Tiltable

297374, B60N 202

Patent

active

051637367

ABSTRACT:
An emergency inertia lock 24 is provided on a tilt lock 20 of a vehicle seat 12 hinge 18. The tilt lock 20 allows adjustment of the degree of tilt between the seat back 16 and seat bottom 14 by disengaging then re-engaging. A spring drum clutch 36 locks a clutch spur gear 32 in a series of spur gears (28, 30). A first extension 38 of the spring drum clutch 36 may be shifted to release the tilt lock 20 manually. A torsion pendulum 52 includes forward and rearward extensions 58 and 60 which contact a second extension 40 of the spring drum clutch 36 to re-engage the tilt lock 20 if it is manually released when a sufficient interial load is applied. A reset lever 70 is provided to reset the tilt lock 20.

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