Title:
SPEAKER DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/162544
Kind Code:
A1
Abstract:
The present invention prevents a flat voice coil in a speaker device from deforming when vibrating, thereby generating a driving force efficiently. Said speaker device is provided with a diaphragm (20), a stationary part (10) that supports said diaphragm (20), and a drive unit (30). Said drive unit (30) is provided with the following: a flat, ring-shaped voice coil (31); a magnetic circuit (40); and a vibration-direction conversion part (50) that converts the direction of vibrations of the voice coil (31) and transmits said vibrations to the diaphragm (20). The voice coil (31) comprises a plurality of ring-shaped conductive members arrayed in a direction that intersects the direction in which the voice coil (31) vibrates.
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Inventors:
HORIGOME MINORU (JP)
HIWATARI SATORU (JP)
TSURUYA MASATO (JP)
HIWATARI SATORU (JP)
TSURUYA MASATO (JP)
Application Number:
PCT/JP2013/060241
Publication Date:
October 09, 2014
Filing Date:
April 03, 2013
Export Citation:
Assignee:
PIONEER CORP (JP)
PIONEER TOHOKU CORP (JP)
PIONEER TOHOKU CORP (JP)
International Classes:
H04R9/02; H04R7/04; H04R9/04
Domestic Patent References:
| WO2011077560A1 | 2011-06-30 |
Attorney, Agent or Firm:
TAKINO, Hideo et al. (JP)
Hideo Takino (JP)
Hideo Takino (JP)
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