SPEAKER - UETAX CORP

Title:

SPEAKER

Document Type and Number:

WIPO Patent Application WO/2002/069669

Kind Code:

A1

Abstract:

A small and high-performance waterproof speaker which can be manufactured inexpensively by decreasing the number of components. Front face of a case (1) is sealed hermetically by a water resistant diaphragm (2) from which a voice coil (3) is projecting inward and a magnetic circuit part (5) having a part (6a) being fitted to the voice coil (3) and a permanent magnet (8)is secured to a first resilient plate (4) provided in the case (1). The first resilient plate (4) is provided with a plurality of through holes (18) and the fitting part (6a) is coupled with the diaphragm (2) through a first coupling member (13) of resilient material. On the other hand, an inertial member (12) is secured to a second resilient plate (11) disposed, oppositely to the first resilient plate (4), in the case (1) and the second resilient plate (11) is coupled with the first resilient plate (4) through a second coupling member (14) of resilient material.

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Inventors:

UEKI MASATAKA (JP)

Application Number:

PCT/JP2002/001658

Publication Date:

September 06, 2002

Filing Date:

February 25, 2002

Export Citation:

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Assignee:

UETAX CORP (JP)
UEKI MASATAKA (JP)

International Classes:

H04R1/44; H04R9/02; H04R9/06; (IPC1-7): H04R1/44; H04R9/02; H04R9/06

Foreign References:

JPH06311597A	1994-11-04
JPS55124994U	1980-09-04
JPH1093672A	1998-04-10
JPS60160233A	1985-08-21
JPS6064599A	1985-04-13
JPS60112158U	1985-07-30
JPS54159108A	1979-12-15

Other References: