Chair mechanism providing for an inclination range and inclination stop means
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United States of America Patent
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May 23, 1995
Grant Date -
N/A
app pub date -
Sep 30, 1993
filing date -
Oct 8, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A chair mechanism (1) for office chairs comprises a synchronous mechanism with integrated negative inclination. The aim is to achieve all sitting postures occurring during office work, and in particular the correction of injurious continuous sitting. The arrangement, the function and the connection of the pivot axes and the configuration of the seat support (4) within the chair mechanism (1) have predominant novelty value. Mechanical springs, which are less expensive than gas springs, are used as component parts. Springing during synchronous movement is effected by means of a torsion spring (9), while the negative inclination utilizes compression springs (21). The mechanism offers a number of options--locking in determined functions--for special applications. In addition to the wide movement range, the apparatus is distinguished by a compact and efficient construction.
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