Chairs and seats – Bottom or back with means to alter contour – Providing support for lower back region
Patent
1991-03-20
1993-06-01
Dorner, Kenneth J.
Chairs and seats
Bottom or back with means to alter contour
Providing support for lower back region
2972841, A47C 300
Patent
active
052153509
ABSTRACT:
A lumbar support device for an automotive seat, in which a support arm, on which a lumbar support plate is rockably supported, is retained in a base bracket against movement by way of a biasing member and limiting element, under an unloaded condition. Therefore, the lumbar support plate does not give a pressure to the lumbar part of an occupant on the seat.
REFERENCES:
patent: 4162807 (1979-07-01), Yoshimura
patent: 4534592 (1985-08-01), Hattori
patent: 4671569 (1987-06-01), Kazaoka et al.
patent: 4678230 (1987-07-01), Winkle
patent: 5011223 (1991-04-01), Kato
Dorner Kenneth J.
Jr. Milton Nelson
Tachi-S Co. Ltd.
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