Patent ID: 7722116

Claim:
An acoustic seat of vibratory-bone-conduction type, comprising: a seat back having a working backrest surface on which a back of an occupant on said acoustic seat is to rest, said seat back at least having a foam member provided therein as a seat padding, such that said foam member is disposed on a side of said working backrest surface, wherein said foam member is formed from a foam material inclusive of urethane foam; a vibration conduction unit comprising a combination of: one bass speaker; a support plate to which said one bass speaker is secured, with one side thereof projecting posteriorly of the support plate, said support plate being resiliently suspended and supported by means of a predetermined spring element with respect to a seat back frame; and a network cushion member arranged anteriorly of said support plate in such a manner as to allow the network cushion member itself to be disposed at a point anteriorly of said one bass speaker, said network cushion member being of a three-dimensional structure, wherein a continuous hollow fiber formed from a thermoplastic resin material is looped or curved randomly, with a plurality of points thereof being contacted and entangled with one another, into a lump of three-dimensionally reticulated fiber; said vibration conduction unit being disposed and accommodated in a cut-out region of said seat padding, wherein said cut-out region is defined in the seat padding to a predetermined extent of covering an area of said seat back which corresponds to a lumbar part of said occupant; and a pair of treble speakers respectively provided in a pair of local areas of said seat padding which correspond respectively to left-side and right-side shoulder portions of said seat back, such that each of said pair of local areas of said seat padding has an opening defined therein, wherein said opening lies anteriorly of an output side of each of said pair of treble speakers.