Title:
【考案の名称】ダイナミックマイクロホン
Document Type and Number:
Japanese Patent JP2548580
Kind Code:
Y2
Abstract:
The invention relates to a supporting structure of a diaphragm of a dynamic microphone. A viscous liquid is filled in the inside of the peripheral edge portion of the edge portion of the diaphragm, thereby supporting the diaphragm to the casing through the viscous liquid. On the other hand, the peripheral edge portion of the diaphragm is fixed to the casing by a fixed ring and the viscous liquid is filled between the fixed ring and the front and rear surfaces of the peripheral edge portion of the edge portion of the diaphragm. With the above structure, by supporting the diaphragm to the casing through the viscous liquid, the liquid also moves in accordance with the vibration of the diaphragm without blocking the vibration of the diaphragm. Therefore, it is possible to certainly prevent the occurrence of the resonance at a special frequency.
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Inventors:
Akio Yoshio
Yoshio Kikuchi
Yoshio Kikuchi
Application Number:
JP15316089U
Publication Date:
September 24, 1997
Filing Date:
December 28, 1989
Export Citation:
Assignee:
Audio Technica Co., Ltd.
International Classes:
H04R7/22; H04R9/08; (IPC1-7): H04R9/08
Domestic Patent References:
| JP49124035U | ||||
| JP56108692U | ||||
| JP5636636B2 |
Attorney, Agent or Firm:
Takuya Ohara