Arching mechanism

Details Arching mechanism Arching mechanism

1998-07-06

1999-12-21

Chen, Jose V.

Chairs and seats

Bottom or back with means to alter contour

2972844, A47C 300

Patent

active

060039418

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.

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