Backrest adjusting device

Chairs and seats – Bottom or back with means to alter contour

Patent

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Details

297452, A47C 300, A47C 702

Patent

active

046308652

ABSTRACT:
The invention relates to a device for adjusting the backrest, preferably of vehicle seats. It is characterized by a first plate-shaped portion, which by a belt-like member is connected to a rigid part of one lateral edge of the seat back, and a second plate-shaped portion, which by a belt-like member is connected to a rigid part of the second lateral edge of the seat back. The plate-shaped portions are located with their plane sides facing to each other, and a spring means is provided to stretch the belt-like members between the lateral edges. A holder-on member is located outside the plate-shaped portions and receives a means intended as desired to press the plate-shaped portions into locking engagement with each other and, respectively, with the holder-on member.

REFERENCES:
patent: 660132 (1900-10-01), Walker
patent: 2564621 (1951-08-01), Emberson
patent: 3231008 (1966-01-01), Seckel
patent: 3680912 (1972-08-01), Matsuura
patent: 4019777 (1977-04-01), Hayashi
patent: 4108492 (1978-08-01), Kirby
patent: 4148522 (1979-04-01), Sakurada et al.
patent: 4155592 (1979-05-01), Tsudu et al.
patent: 4431229 (1984-02-01), Unger
patent: 4452485 (1984-06-01), Schuster
patent: 4467484 (1984-08-01), Nagatake et al.

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