Device for changing the inclination of the back-rest of a vehicl

Details Device for changing the inclination of the back-rest of a vehicl Device for changing the inclination of the back-rest of a vehicl

1985-02-25

1990-02-06

McCall, James T.

Chairs and seats

Movable back

Tiltable

24342, A47C 302

Patent

active

048984230

ABSTRACT:
An apparatus is provided for adjusting a vehicle seat having a movable support member. The apparatus includes a first frame member and a second frame member pivotably articulated to the first frame member. A backrest is desirably mounted on the second frame member. First and second driven gears are rotatably mounted on the first frame member. The apparatus further includes a first transmission system for pivoting the second frame member in relation to the first frame member to change the inclination of the second frame member and a second transmission system for changing the position of the movable support member in relation to the second frame member. The first transmission system is activated in response to rotation of the first driven gear and the second transmission system is activated in response to rotation of the second driven year. A control element is provided for selectively engaging either the first driven gear to activate the first transmission system or the second driven gear to activate the second transmission system. In operation, the control element is selectively movable by an operator to its first position to permit the operator to change the inclination of the second frame member or to its second position to permit the operator to change the position of the movable support member.

REFERENCES:
patent: 1322388 (1919-11-01), Wood
patent: 2185846 (1940-01-01), Hacmac
patent: 3105675 (1963-10-01), Blackburn
patent: 3485109 (1969-12-01), Dunlap
patent: 3738706 (1973-06-01), Caldemeyer
patent: 4216624 (1980-08-01), Blankenberg et al.
patent: 4331039 (1982-05-01), Ruge

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