Height adjustment of back rests
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United States of America Patent
Stats
-
Mar 16, 1999
Grant Date -
N/A
app pub date -
Nov 25, 1997
filing date -
Jan 10, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention concerns the height-adjustment of the back-rests of chairs, especially office chairs, consisting of a housing (1) in which a flat back-rest carrier (2) is held by a ball-stop clamp (3, 4), the back-rest carrier (2) being provided with a series of indentations or holes (3) arranged behind one another in an axial direction for the stop balls (4) which are held in the indentations or holes (3) by means of a spring-loaded clamping bevel (5'). The clamping bevel (5') can be brought out of contact by a push-button (8) guided sideways from outside the housing against the spring force, spring-loaded means (10, 11) being arranged in the housing (1) for the prevention of sideways play of the back-rest carrier (2).
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Cited Art Landscape
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