Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tzu-Ying Liao0
Date of Patent
April 6, 2010
0Patent Application Number
121913190
Date Filed
August 14, 2008
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An adjustable chair headrest frame includes a headrest provided with a pivotal frame at the rear side. A support frame is pivotally assembled with the pivotal frame of the headrest, having its inner side formed with a recessed face having its outer periphery fixed with plural female-thread studs. An adjusting device is combined at the inside of the support frame, composed of a fit plate, plural stop blocks, a holding plate, springs and a back plate. A combining plate is threadably combined with the fit plate of the adjusting device and assembled at the rear side of a chair. By so designing, the headrest frame can be adjusted upward or downward, and the headrest can be adjusted and positioned at different angles.
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