Title:
ELECTROACOUSTIC TRANSDUCER
Document Type and Number:
Japanese Patent JPS6223299
Kind Code:
A
Abstract:
PURPOSE: To reduce the number of components and to simplify assembling by forming integrally a housing main body in which a speaker unit is contained and supported and a code bushing through which an external connection cord is penetrated with an elastic synthetic resin.
CONSTITUTION: An earphone consists of the speaker unit 1 a housing 40 forming integrally, the housing main body 41 accommodating and supporting the speaker unit 1 and the cord bushing 42 through which the external connection cord 5 led out of the speaker unit 1 is penetrated. The housing 40 is formed by molding a synthetic resin having sufficiently large elasticity such as ethylene- vinylacetate having 80° rubber hardness.
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Inventors:
KANBE YOSHIYUKI
Application Number:
JP16252485A
Publication Date:
January 31, 1987
Filing Date:
July 23, 1985
Export Citation:
Assignee:
SONY CORP
International Classes:
H04R1/10; (IPC1-7): H04R1/10
Domestic Patent References:
| JP59134988B |
Attorney, Agent or Firm:
Akira Koike
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