Title:
PRODUCTION FACILITY FOR SPEAKER DIAPHRAGM, METHOD OF MANUFACTURING SPEAKER DIAPHRAGM USING THE PRODUCTION FACILITY, AND SPEAKER DIAPHRAGM
Document Type and Number:
WIPO Patent Application WO/2006/001292
Kind Code:
A1
Abstract:
A production facility for a speaker diaphragm capable of molding a sheet-like film material by stepwise controlling the pressure and flow of a compressed air in air-pressure molding and a method of manufacturing the diaphragm by using the production facility. Since the diaphragm can be accurately molded and the stability of the dimensions and the shape of the diaphragm can be increased, the diaphragm with high quality tone can be provided, and the productivity, quality, and reliability of the diaphragm can be increased.
Inventors:
AJIKI KENICHI
TABATA HIRONORI
MIMURA KAZUYOSHI
SUMIYAMA MASAHIDE
TABATA HIRONORI
MIMURA KAZUYOSHI
SUMIYAMA MASAHIDE
Application Number:
PCT/JP2005/011413
Publication Date:
January 05, 2006
Filing Date:
June 22, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
AJIKI KENICHI
TABATA HIRONORI
MIMURA KAZUYOSHI
SUMIYAMA MASAHIDE
AJIKI KENICHI
TABATA HIRONORI
MIMURA KAZUYOSHI
SUMIYAMA MASAHIDE
International Classes:
H04R31/00; H04R7/02; (IPC1-7): H04R31/00; H04R7/02
Foreign References:
| JPS55162696A | 1980-12-18 | |||
| JP2003276074A | 2003-09-30 | |||
| JPH07101953B2 | 1995-11-01 | |||
| JPH03239098A | 1991-10-24 | |||
| JPH08340593A | 1996-12-24 | |||
| JPH06293056A | 1994-10-21 | |||
| JP2003220643A | 2003-08-05 |
Attorney, Agent or Firm:
Iwahashi, Fumio (1006, Oaza Kadom, Kadoma-shi Osaka, JP)
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