Motor driven reclinable backrest with arresting device

Details Motor driven reclinable backrest with arresting device Motor driven reclinable backrest with arresting device

1979-03-02

1980-04-01

Lyddane, William E.

Chairs and seats

Crash seat

Bottom and back movable as unit in response to force

188 69, 192 7, 297362, 297379, B60R 2110, A47C 1025

Patent

active

041958810

ABSTRACT:
A hinged mount for vehicle seats having reclinable backrest includes a motor driven pivot axle connected to a setting shaft for the angular position adjusting and arresting device. The shaft supports for joint rotation an axially displaceable coupling disk having on each face thereof a ring of coupling teeth. The pinion of the driving motor is in mesh with an idling gear supported on the setting shaft and a cup spring urges the coupling disk into engagement with the idling gear. In the case of accidental rotation of the setting shaft caused by inertial forces acting against the backrest in the case of an accident, for example, the coupling teeth of the coupling disk slide on the toothing of the idling gear and the teeth on the other side of the disk engage an arresting ring which is secured to the reclinable mount part.

REFERENCES:
patent: 3401979 (1968-09-01), Putsch
patent: 4113308 (1978-09-01), Werner et al.
patent: 4147386 (1979-04-01), Stolper

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