Acoustic structure of seat back

Details Acoustic structure of seat back Acoustic structure of seat back

2006-04-28

2008-08-19

Dunn, David R (Department: 3636)

Chairs and seats

Combined

With electrical feature

C297S217300

Reexamination Certificate

active

07413248

ABSTRACT:
An acoustic structure of seat back includes a suspension board element provided therein. The suspension board element, which has a speaker unit provided to a backward surface thereof, is resiliently provided in a seat back frame of the seat back. A sound-conductive cushion element of a flat plate configuration is juxtaposed on a forward surface of the suspension board element. Those seat back frame and sound-conductive cushion element are covered with a foam padding and a trim cover assembly to thereby form such an acoustic seat back structure wherein all the suspension board element, speaker unit and sound-conductive cushion element are resiliently supported within the seat back, as an acoustic and vibration generator unit effective for imparting sound and vibration directly to a back portion of seat occupant.

REFERENCES:
patent: 4064376 (1977-12-01), Yamada
patent: 5314403 (1994-05-01), Shaw
patent: 5387026 (1995-02-01), Matsuhashi et al.
patent: 5649739 (1997-07-01), Zapf
patent: 5951110 (1999-09-01), Conner et al.
patent: 6929324 (2005-08-01), Enomoto et al.
patent: 7077405 (2006-07-01), Akpom
patent: 7159938 (2007-01-01), Shiraishi
patent: 2002-346476 (2002-12-01), None
patent: 2004-097654 (2004-04-01), None

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