Cushion and acoustic system with the cushion
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United States of America Patent
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Aug 10, 2010
Grant Date -
Apr 19, 2007
app pub date -
Sep 27, 2004
filing date -
Sep 29, 2003
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Abstract
A cushion comprises a resin body with a spring structure having permeability comprising a three-dimensional structure including voids at a predetermined bulk density, the three-dimensional structure being obtained by contacting, entwining, and gathering adjacent ones of random loops or curls of continuous filaments made from a thermoplastic resin in such a manner as to allow the resulting structure to have a layered structure in which layers composed of filaments having a high bulk density as superficial layers are formed on a front and a rear of the resin body in a lengthwise direction, and a layer composed of the filaments having a low bulk density as a core layer is interposed between the superficial layers; and a speaker incorporated in the resin body or disposed on one of the superficial layers of the resin body.
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