Backrest of the chair and adaptation device for the same
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United States of America Patent
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Aug 28, 2012
Grant Date -
Sep 23, 2010
app pub date -
Oct 28, 2008
filing date -
Nov 2, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A backrest of chair in which the lower part of a back frame can be concealed neatly by a stretching material. In the backrest device of a chair where a bag like stretching material (12) knitted or woven in the shape of mesh and opening downward is stretched across a back frame (11) formed by coupling the upper ends of right and left side frames (14a) directing the vertical direction by an upper frame (14b) directing the right and left direction, and coupling the lower ends of both the side frames (14a) by a lower frame (14c) which can be fixed to a backrest supporting rod (8) erected from the upper rear of the seat body of the chair, upper portion of the stretching material (12) is made air permeable, and at least a part at the lower portion of the stretching material (12) covering the lower frame (14c) is made non-translucent.
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