Device for adjusting the height and the attitude of a seat structure, in particular for a vehicle
First Claim
1. A device for adjusting the height and the attitude of a seat structure in particular of a vehicle, said device comprising:
- slides for mounting a seat on the floor of the vehicle;
a cushion and a backrest carried by the seat;
adjusting means for adjusting the seat in height and in attitude, located on each side of the seat structure;
said adjusting means comprising a cam interposed between the slide and the seat on each side of the seat;
at least one first bearing track for the bearing of each cam on the respective slide for the adjustment for the cam and each in height;
each said cam being formed by a plate in which are formed two elongated and inclined first openings having upper edges constituting said at least one first bearing track, said adjusting means further comprising supports mounted on the slide and rolling elements mounted on the supports for bearing against said first bearing tracks;
and at least one second bearing track for the bearing of the seat on each cam, the second bearing track having a shape which is a function of a desired attitude-adjusting movement of the seat relative to the cam; and
means for controlling the height of each cam and seat relative to the respective slide and for controlling the attitude of the seat relative to the respective cam.
1 Assignment
0 Petitions
Accused Products
Abstract
This device comprises elements for fixing it to slides (6) which are longitudinally movable on fixed slides (10), other elements allowing the mounting of a seat (4) carrying a cushion (3) and a backrest (2), and, on each side of the seat structure, a cam (5) interposed between the slide (6) and the seat (4). There are provided in the cam (5) bearing tracks (7, 8) for the cam (5) on the slide (6) for the adjustment of the cam (5) in height. Jacks (12, 13) control the height of the cam (5) and the attitude adjusting movement of the seat (4) relative to the cam. This device permits the obtainment of the exact required attitude path, is of small overall size and avoids practically all play or vibrations.
25 Citations
20 Claims
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1. A device for adjusting the height and the attitude of a seat structure in particular of a vehicle, said device comprising:
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slides for mounting a seat on the floor of the vehicle; a cushion and a backrest carried by the seat; adjusting means for adjusting the seat in height and in attitude, located on each side of the seat structure; said adjusting means comprising a cam interposed between the slide and the seat on each side of the seat; at least one first bearing track for the bearing of each cam on the respective slide for the adjustment for the cam and each in height; each said cam being formed by a plate in which are formed two elongated and inclined first openings having upper edges constituting said at least one first bearing track, said adjusting means further comprising supports mounted on the slide and rolling elements mounted on the supports for bearing against said first bearing tracks; and at least one second bearing track for the bearing of the seat on each cam, the second bearing track having a shape which is a function of a desired attitude-adjusting movement of the seat relative to the cam; and means for controlling the height of each cam and seat relative to the respective slide and for controlling the attitude of the seat relative to the respective cam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification