SEATING FURNITURE HAVING MOVABLE BACKREST
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United States of America Patent
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N/A
Issued Date -
Feb 16, 2012
app pub date -
Apr 15, 2010
filing date -
Apr 15, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention relates to seating furniture, and more specifically, to seating furniture having a movable backrest, which allows a user's back to be supported by a backrest at all times in order to enable seating with proper posture, and comprises: a lower frame which is connected to a support; an upper frame which is connected to the lower frame via a vertical displacement generation means; at least one elastic body which is installed between the lower frame and upper frame; a back and forth moving means which is formed at the edge of the left and right sides of the upper frame, and is connected to a backrest frame to move back and forth; a power generation unit which converts the displacement according to the descent of the upper frame into a straight line movement at the back and forth moving means if a load is applied to a seat unit combined to the upper frame, thereby moving the backrest frame forward; and a switching unit which switches to a half-lock state in which the backrest frame can move forward only if a load is applied to the seat unit, and to an unlock state in which the backrest frame can move backward if the load applied to the seat unit is removed.
First Claim
Family
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Cited Art Landscape
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