Chair backrest with integral lumbar support
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United States of America Patent
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-
Dec 1, 2009
Grant Date -
Oct 23, 2008
app pub date -
Sep 17, 2007
filing date -
Sep 18, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
Chair backrest, comprising a support structure constituted by a single piece of injected plastic material, including a bearing section having a front surface against which a user's back is to bear. The bearing section has an opening that extends in a lumbar region of the front surface. The backrest comprises a lumbar support panel movably positioned in said opening. The lumbar support panel has a front surface against which a lumbar region of the user's back is to bear and it has an outer perimeter that is connected to the edge of said opening by means of an elastic element that tends to thrust the support panel towards a position in which the front surface of the lumbar support panel projects anteriorly relative to the front surface of said bearing section.
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