Claims
- 1. A method for manufacturing a diaphragm for a loudspeaker, comprising the steps of:heating a molded resin diaphragm for said loudspeakers in a reactive chamber; and activating the surface of said diaphragm for said loudspeaker by applying plasma while keeping the temperature inside said reactive chamber below a heat deformation temperature of said diaphragm for said loudspeaker.
- 2. The method for manufacturing a diaphragm for a loudspeaker as defined in claim 1, wherein a plurality of molded resin speaker diaphragms are placed inside said reactive chamber at a certain interval so as to apply plasma substantially uniformly.
- 3. The method for manufacturing a diaphragm for a loudspeaker as defined in claim 1, wherein isocyanate primer is applied after plasma treatment.
- 4. The method for manufacturing a diaphragm for a loudspeaker as defined in claim 2, wherein isocyanate primer is applied after plasma treatment.
- 5. The method for manufacturing a diaphragm for a loudspeaker as defined in claim 1, wherein one of monopolymer and copolymer of polyolefin such as polyethylene and polypropylene is used as a material for said diaphragm for said loudspeaker.
- 6. The method for manufacturing a diaphragm for a loudspeaker as defined in claim 2, wherein one of monopolymer and copolymer of polyolefin such as polyethylene and polypropylene is used as a material for said diaphragm for said loudspeaker.
- 7. The method for manufacturing a diaphragm for a loudspeaker as defined in claim 3, wherein one of monopolymer and copolymer of polyolefin such as polyethylene and polypropylene is used as a material for said diaphragm for said loudspeaker.
- 8. The method for manufacturing a diaphragm for a loudspeaker as defined in claim 4, wherein one of monopolymer and copolymer of polyolefin such as polyethylene and polypropylene is used as a material for said diaphragm for said loudspeaker.
- 9. The method for manufacturing a loudspeaker diaphragm as; defined in claim 1, further comprising the step of manufacturing said molded resin speaker diaphragm by one of injection molding and sheet forming.
- 10. The method of manufacturing a loudspeaker diaphragm as defined in claim 1, wherein said reactive chamber is disposed with a meshed metal frame inside said reactive chamber and with an electrode outside said reactive chamber.
Priority Claims (1)
Number |
Date |
Country |
Kind |
10-164892 |
Jun 1998 |
JP |
|
Parent Case Info
THIS APPLICATION IS A U.S. NATIONAL PHASE APPLICATION OF PCT INTERNATIONAL APPLICATION PCT/JP99/03140filed on Jun. 11, 1999.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/JP99/03140 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO99/65272 |
12/16/1999 |
WO |
A |
Foreign Referenced Citations (3)
Number |
Date |
Country |
60048696 |
Mar 1985 |
JP |
5-168903 |
Feb 1993 |
JP |
6-225388 |
Aug 1994 |
JP |
Non-Patent Literature Citations (2)
Entry |
Japanese search report for PCT/JP99/03140 dated Aug. 24, 1999. |
English translation of Form PCT/ISA/210(Aug. 24, 1999). |