Apparatus for positioning the backrest of a vehicle seat

Details Apparatus for positioning the backrest of a vehicle seat Apparatus for positioning the backrest of a vehicle seat

1984-06-27

1986-10-07

Aschenbrenner, Peter A.

Chairs and seats

Movable bottom

Interconnected with back for relative concurrent movement

248429, A47C 102

Patent

active

046155511

ABSTRACT:
An apparatus for positioning the backrest of a vehicle seat to facilitate an occupant's entry and exit from the vehicle. The apparatus includes a seat frame mounted on the floor of a vehicle and a backrest frame pivotally connected to the seat frame. A pawl member releasably engages the seat frame from teeth on the backrest frame and is controlled by an operating lever to adjust the pivotable position of the backrest. A support member slidably positions the seat frame along the vehicle and includes a pair of spaced lower rails and a pair of complimentary upper rails slidably mounted on the lower rails. A locking device mounted on the upper rail prevents sliding movement between the upper and lower rails. A cable means extending between the backrest and the locking device releases the locking device to enable sliding movement between the upper and lower rails when the backrest is pivoted beyond a predetermined position. The backrest, which is biased toward the front of the vehicle, cannot be pivoted back to its original position until a positioning lever engages a cam surface mounted on the lower rail to disengage a restricting arm engaged within a groove on the backrest.

REFERENCES:
patent: 2856983 (1958-10-01), Probst et al.
patent: 3931995 (1976-01-01), Arai
patent: 4143911 (1979-03-01), Sakakibara et al.
patent: 4423904 (1984-01-01), Crawford

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