Hinge fitting for adjustable back rests of vehicle seats

Details Hinge fitting for adjustable back rests of vehicle seats Hinge fitting for adjustable back rests of vehicle seats

1976-09-28

1978-04-25

Frazier, Roy D.

Chairs and seats

Movable back

Tiltable

16146, B60N 102

Patent

active

040859690

ABSTRACT:
A hinge fitting for adjusting the inclination of the back rest of a vehicle seat comprises a stationary hinge plate secured to the seat, a movable hinge plate pivoted to the stationary hinge plate and secured to the back rest, a semicircularly toothed internal rack secured within the stationary hinge plate, a pawl lever swingably pivoted on the inside of the movable hinge plate and including a detent element swingable at the outside of the movable hinge plate to be meshed with the teeth of the rack in a vertical common plane, the pivot position of the pawl lever being arranged on a tangent of the semicircularly aligned teeth of the rack, and a spring loaded locking lever pivoted coaxially with the hinge plates and movable between a locked position in which the detent element is engaged with the rack by engagement of the locking lever against the detent element and a released position in which the detent element is disengaged from the rack by engagement of the locking lever against the pawl lever.

REFERENCES:
patent: 3309139 (1967-03-01), Turner et al.
patent: 3901100 (1975-08-01), Iida et al.
patent: 3902757 (1975-09-01), Yoshimura
patent: 3953069 (1976-04-01), Tamura et al.
patent: 3958828 (1976-05-01), Ishida et al.
patent: 3966253 (1976-06-01), Berghof et al.

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