Title:
音響変換装置
Document Type and Number:
Japanese Patent JP5540921
Kind Code:
B2
Abstract:
An acoustic conversion device includes: a driving unit including a pair of magnets, a yoke, a coil, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion being passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame, a diaphragm held within the holding frame, and a beam portion for propagating the vibration of the vibrating portion to the diaphragm; with the beam portion being combined with one edge side of the diaphragm, a predetermined gap being formed between the other edge of the diaphragm, and the inner face of the holding frame, a reinforcing member being provided to the predetermined gap, and the diaphragm being combined with the holding frame by the resin film and the reinforcing member.
Inventors:
Tsutomu Nagumo
Koji Matsuda
Yukio Tono
Takeshi Hara
Takahiro Suzuki
Takayuki Ishii
Kenji Hiraiwa
Koji Matsuda
Yukio Tono
Takeshi Hara
Takahiro Suzuki
Takayuki Ishii
Kenji Hiraiwa
Application Number:
JP2010137899A
Publication Date:
July 02, 2014
Filing Date:
June 17, 2010
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04R11/02
Domestic Patent References:
| JP2006041768A | ||||
| JP9502315A | ||||
| JP50007927B1 | ||||
| JP2274200A | ||||
| JP4050994U | ||||
| JP61072998U | ||||
| JP60052198A |
Foreign References:
| US20050111688 |
Attorney, Agent or Firm:
Masanobu Iwata
Previous Patent: JPS5540920
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