Working chair
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 15, 1980
Grant Date -
N/A
app pub date -
Aug 22, 1978
filing date -
Aug 25, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A working chair comprising a seat member and a back member, each of which is pivotable about a horizontal shaft mounted in an underframe so that the seat and back members are individually adjustable, and a releasable locking means for fixing of the seat and back members in a set position. The locking means comprises a number of locking plates of which a first number of plates is fixed to the underframe at a distance behind the pivot axes of the seat and back members, and a second number of plates is fixed to the back member. The locking plates co-operate with a clamping unit mounted on the underside of the seat member and comprising clamping members for clamping the locking plates therebetween by spring action. Said spring action may be neutralized by means of a manually actuatable handle.
First Claim
Family
International Classification(s)
Cited Art Landscape
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