Arching mechanism and method of use

Details Arching mechanism and method of use Arching mechanism and method of use

2005-03-01

2005-03-01

Chen, Jose V. (Department: 3637)

Chairs and seats

Bottom or back with means to alter contour

C297S284400

Reexamination Certificate

active

06860559

ABSTRACT:
Arching mechanism, for instance for backrests of seats, medical or orthopaedic apparatus or casings and the like, with a pressure element wherein at least one traction element connected with a tensioning mechanism engages, which, when the mechanism is actuated can produce bulging by preserving a relative elevation of apex of the convexity; the arching mechanism can comprise a frame with inserted pressure elements actuatable by adjusting device(s), whereby frame segments are length-variable pressure elements; traction elements provided with tensioning mechanism can engage a slitted, overlapping or bellows-like bulging body for the opening and closing of these areas, which produces a curving of the bulging body in a predetermined direction or directions.

REFERENCES:
patent: 2843195 (1958-07-01), Barvaeus
patent: 3378299 (1968-04-01), Sandor
patent: 6666511 (2003-12-01), Schuster et al.
patent: 3616155 (1987-11-01), None
patent: 3634396 (1988-01-01), None
patent: 296938 (1988-06-01), None
patent: 2059497 (1981-04-01), None
patent: WO 9425307 (1994-11-01), None

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