Title:
SPEAKER DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/166654
Kind Code:
A1
Abstract:
Provided is a speaker device by which the occurrence of unusual sounds due to a coupler vibration plate coming into contact with a drive vibration plate can be suppressed, and sound quality can be improved. This speaker device (1) comprises: a frame (2); a magnetic circuit (3); a voice coil (42); a voice coil bobbin (41); a drive vibration plate (5) to which the voice coil bobbin (41) is attached; a first edge (6) that connects the outer peripheral side of the drive vibration plate (5) to the frame (2); a coupler vibration plate (7A) that is arranged coaxially with the drive vibration plate (5); and a second edge (8A) that connects the outer peripheral side of the coupler vibration plate (7A) to the frame (2). Seen from the direction of the central axis of the drive vibration plate (5), the coupler vibration plate (7A) has a smaller size than the drive vibration plate (5), and the projection area of the second edge (8A) is formed to be greater than the projection area of the first edge (6).
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Inventors:
HOSOYA HIROAKI (JP)
OIZUMI HIROYA (JP)
WATANABE KAZUAKI (JP)
JUNICHO YOSHITAKA (JP)
OIZUMI HIROYA (JP)
WATANABE KAZUAKI (JP)
JUNICHO YOSHITAKA (JP)
Application Number:
PCT/JP2022/009108
Publication Date:
September 07, 2023
Filing Date:
March 03, 2022
Export Citation:
Assignee:
PIONEER CORP (JP)
PIONEER TOHOKU CORP (JP)
PIONEER TOHOKU CORP (JP)
International Classes:
H04R7/04; H04R7/20; H04R9/02
Domestic Patent References:
| WO2015097951A1 | 2015-07-02 |
Foreign References:
| JPS56130392U | 1981-10-03 | |||
| US20170245049A1 | 2017-08-24 | |||
| JP2017069853A | 2017-04-06 | |||
| JP2018033124A | 2018-03-01 | |||
| JP2010283491A | 2010-12-16 |
Attorney, Agent or Firm:
TAKINO, Fumio et al. (JP)
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