Arching mechanism
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United States of America Patent
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-
Jul 3, 2001
Grant Date -
N/A
app pub date -
Aug 24, 1999
filing date -
Aug 4, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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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