Adjustable backrest for the seats of vehicles, particularly cars

Details Adjustable backrest for the seats of vehicles, particularly cars Adjustable backrest for the seats of vehicles, particularly cars

1988-10-13

1990-03-20

Brown, Peter R.

Chairs and seats

Bottom or back with means to alter contour

297460, A47C 746

Patent

active

049095684

ABSTRACT:
The front supporting surface of the backrest is defined by an array of flexible elements (7) located side by side and having a generally S-shaped configuration with a lower forwardly convex curve (4) for supporting the lumbar region of the back and an upper forwardly concave curve (5) for supporting the upper dorsal region. An adjustable device (10, 11) is connected to the lower ends of flexible elements (7) to enable the curvature of the flexible elements (7) to be altered selectively so as to obtain the best adaption of the backrest (1) to the characteristics of the person occupying the seat. A plurality of cables (13) are connected between the adjustable device and an upper cross member for altering the upper curvature of the flexible elements (7).

REFERENCES:
patent: 2843195 (1956-01-01), Barvaeus
patent: 3762769 (1973-10-01), Poschul
patent: 4316631 (1982-02-01), Lenz et al.
patent: 4452485 (1984-06-01), Schuster
patent: 4541670 (1985-09-01), Morgenstern
patent: 4627661 (1986-12-01), Ronnhult et al.
patent: 4632454 (1986-12-01), Naeit
European Search Report.

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