JPS5730498A - Diaphragm for speaker - Google Patents
Diaphragm for speakerInfo
- Publication number
- JPS5730498A JPS5730498A JP10564980A JP10564980A JPS5730498A JP S5730498 A JPS5730498 A JP S5730498A JP 10564980 A JP10564980 A JP 10564980A JP 10564980 A JP10564980 A JP 10564980A JP S5730498 A JPS5730498 A JP S5730498A
- Authority
- JP
- Japan
- Prior art keywords
- fiber layer
- layer
- diaphragm
- fiber
- spraying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/127—Non-planar diaphragms or cones dome-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
PURPOSE:To obtain a speaker diaphragm capable of expanding its reproduction frequency band and of flattening frequency characteristics, by forming a bubble- containing metallic layer on a base made of silicon carbide fiber by spraying a fused metallic material under high pressure. CONSTITUTION:Silicon carbide fiber is dispersed in water 1 uniformly and the water is discharged to form sediment of a fiber layer 3a on a scooping net coated with ''Teflon ''. In this state, the scooping net 2 is taken out and an adhesive 4, such as phenol, is sprayed on the fiber layer 3a and dried. Then, the fiber layer 3a peeled off from the scooping net 2 is mounted on a mold board 7. To the pipe 14 of a powder melt-spraying device 11, Al powder 16 formed into a diaphragm is supplied and to the pipes 12 and 13, compressed air and combustion gas are supplied respectively for a melt-spraying treatment; and produced fine garins 16a are pressed into the gap of the fiber layer 3a and solidified to form a metallic layer 3b. The diaphragm 3 consisting of the metallic layer 3b and fiber layer 3a obtained by being separated from the mold board 7 is further dipped in synthetic resin, such as an SBR solution, having a large internal loss for impregration as its final treatment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10564980A JPS5730498A (en) | 1980-07-30 | 1980-07-30 | Diaphragm for speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10564980A JPS5730498A (en) | 1980-07-30 | 1980-07-30 | Diaphragm for speaker |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5730498A true JPS5730498A (en) | 1982-02-18 |
Family
ID=14413293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10564980A Pending JPS5730498A (en) | 1980-07-30 | 1980-07-30 | Diaphragm for speaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5730498A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6319588A (en) * | 1986-07-14 | 1988-01-27 | Matsushita Electric Works Ltd | Awaking device |
US5479939A (en) * | 1990-03-09 | 1996-01-02 | Matsushita Electric Industrial Co., Ltd. | Sleep detecting apparatus |
US5701359A (en) * | 1995-04-06 | 1997-12-23 | Precision Power | Flat-panel speaker |
US6097829A (en) * | 1995-04-06 | 2000-08-01 | Precision Power, Inc. | Fiber-honeycomb-fiber sandwich speaker diaphragm and method |
-
1980
- 1980-07-30 JP JP10564980A patent/JPS5730498A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6319588A (en) * | 1986-07-14 | 1988-01-27 | Matsushita Electric Works Ltd | Awaking device |
US5479939A (en) * | 1990-03-09 | 1996-01-02 | Matsushita Electric Industrial Co., Ltd. | Sleep detecting apparatus |
US5724990A (en) * | 1990-03-09 | 1998-03-10 | Matsushita Electric Industrial Co., Ltd. | Human monitoring apparatus |
US5902255A (en) * | 1990-03-09 | 1999-05-11 | Matsushita Electric Industrial Co., Ltd. | Human monitoring device |
US5701359A (en) * | 1995-04-06 | 1997-12-23 | Precision Power | Flat-panel speaker |
US6097829A (en) * | 1995-04-06 | 2000-08-01 | Precision Power, Inc. | Fiber-honeycomb-fiber sandwich speaker diaphragm and method |
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