Ergonomic chair
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United States of America Patent
Stats
-
Sep 17, 1991
Grant Date -
N/A
app pub date -
Jul 16, 1990
filing date -
Jul 16, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A chair adapted to passively adjust itself to be in equilibrium with the user's body in relation to changes in the center of gravity and thigh inclination. The chair includes a post from which is provided, in one embodiment, a convex track on which a carriage is allowed to travel, and a seat pan is pivoted on the carriage for angle adjustment relative to the carriage. In another embodiment, a first concave track is provided on the top of the post with a carriage slidable in the concave track and a seat pan mounted for travel in a track on the carriage wherein the second concave track has a smaller radius than the first track.
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