Title:
SPEAKER DEVICE FOR VEHICLES
Document Type and Number:
WIPO Patent Application WO/2022/038877
Kind Code:
A1
Abstract:
A speaker device 1 for vehicles is provided with an interior material 2, an auxiliary plate 3, and an exciter 4. The interior material 2 contains a first resin 21 and has minute voids V1 inside. The auxiliary plate 3 contains carbon fibers 31 and a second resin (for example, thermoplastic resin fibers 32), is fixed to a back surface 2b of the interior material 2, and functions as a vibration plate along with the interior material 2. The exciter 4 is in contact with a back surface 3b of the auxiliary plate 3 and transfers vibrations to the auxiliary plate 3.
Inventors:
TAKEUCHI YUJI (JP)
SUZUKI HIROSHI (JP)
UNO HISASHI (JP)
SEKIGUCHI TORU (JP)
SUZUKI HIROSHI (JP)
UNO HISASHI (JP)
SEKIGUCHI TORU (JP)
Application Number:
PCT/JP2021/022439
Publication Date:
February 24, 2022
Filing Date:
June 14, 2021
Export Citation:
Assignee:
HAYASHI TELEMPU CORP (JP)
International Classes:
B60R11/02; H04R1/02; H04R7/02; H04R7/10
Foreign References:
| JP2006173995A | 2006-06-29 | |||
| JPS57170694A | 1982-10-20 | |||
| JP2006115167A | 2006-04-27 |
Attorney, Agent or Firm:
YOKOI Toshiyuki (JP)
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