Flexible elastic support

Details Flexible elastic support Flexible elastic support

1981-12-23

1984-06-05

Zugel, Francis K.

Chairs and seats

Bottom or back with means to alter contour

297460, A47C 2500

Patent

active

044524854

ABSTRACT:
An adjustable-curvature structure, e.g. for seat backs, comprises a pair of support belts which are flexible but substantially inextensible, and a pair of tension belts juxtaposed with the support belts. A grid of transverse bars can span the support belts and a tension device is provided between the two pairs of belts so that the support belts can be bowed when the other belts are placed under tension. The curvature character is controlled by spacers which interconnect the support and tension belts to limit the distance between them at various locations along their lengths.

REFERENCES:
patent: 154454 (1874-08-01), Case
patent: 614153 (1898-11-01), West
patent: 825577 (1906-07-01), Bezanger et al.
patent: 2756809 (1956-07-01), Endresen
patent: 2843195 (1958-07-01), Barvaeus
patent: 3158400 (1964-11-01), Tuhtar
patent: 3378299 (1968-04-01), Sandor
patent: 4153293 (1979-05-01), Sheldon
patent: 4350388 (1982-09-01), Weiner

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