Title:
ダイナミックマイクロホン用の振動板およびその製造方法とダイナミックマイクロホン
Document Type and Number:
Japanese Patent JP4272978
Kind Code:
B2
Abstract:
It is an object to provide a vibrating plate of a dynamic microphone and a method of manufacturing the vibrating plate, the vibrating plate having a sub-dome and a center dome to which a voice coil is bonded by an adhesive. A mechanical intensity of the vibrating plate is increased without the vibrating plate formed to a double structure, as well as having an enhanced shock-resistance According to FIG. 1 e, a vibrating plate 1 of a dynamic microphone includes a center dome 10 with an electricity generating voice coil 30 and a sub-dome 20 connecting and communicating with the outer circumference of the center dome 10 . The voice coil 30 is bonded to the center dome 10 with a first ultraviolet curing-resin 50 which has relatively high viscosity before hardening and relatively low hardness after hardening. A reinforcing resin layer 60 a is integratedly formed in the inner surface of the center dome. The reinforcing resin layer 60 a is formed with a second ultraviolet curing-resin 60 which has relatively low viscosity before hardening and relatively high hardness after hardening.
Inventors:
Hiroshi Akino
Application Number:
JP2003420840A
Publication Date:
June 03, 2009
Filing Date:
December 18, 2003
Export Citation:
Assignee:
Audio Technica Co., Ltd.
International Classes:
H04R7/12; H04R9/04; H04R9/08; H04R31/00
Domestic Patent References:
| JP58090898A |
Attorney, Agent or Firm:
Takuya Ohara
Previous Patent: 医療用刃物の替刃
Next Patent: RESIN COMPOSITION FOR ONE-PACK MOISTURE-CURING COATING MATERIAL
Next Patent: RESIN COMPOSITION FOR ONE-PACK MOISTURE-CURING COATING MATERIAL