JPS5480733A - Speaker diaphragm - Google Patents
Speaker diaphragmInfo
- Publication number
- JPS5480733A JPS5480733A JP14813777A JP14813777A JPS5480733A JP S5480733 A JPS5480733 A JP S5480733A JP 14813777 A JP14813777 A JP 14813777A JP 14813777 A JP14813777 A JP 14813777A JP S5480733 A JPS5480733 A JP S5480733A
- Authority
- JP
- Japan
- Prior art keywords
- carbon fibers
- woven
- improve
- reinforced
- plastics
- 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
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 simplify the steps and improve the characteristics by laminating or sandwitching plastics, which are easy in handling and production and which are reinforced with woven carbon fibers, and a metal foil. CONSTITUTION:As woven fibric of carbon fibers, a weaving structure is selected suitably for purposes from one of plain, twill and satin weaves. One kind is selected from a thermoplastic resin such as polycarbonate or polyethylene or a thermoset resin such as phenol or epoxy and is dissolved in a suitble organic solvent. Woven fabric of carbon fibers is dipped in the solution and is dried with air and by heat to produce a prepreg plate of plastics reinforced with woven fabric of carbon fibers. An aluminum or titanium foil of a preset thinkness is applied to one or both sides of the prepreg plate, which is impregnated with 15 to 25 wt. %. risin and the cutting is accomplished to have a preset size. The cut one is held between a pair of male and female molds having a shape corresponding to a desired diaphramg and is molded at an elevated temperature and under pressure. Thus, it is possible to improve the characteristics.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14813777A JPS5480733A (en) | 1977-12-12 | 1977-12-12 | Speaker diaphragm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14813777A JPS5480733A (en) | 1977-12-12 | 1977-12-12 | Speaker diaphragm |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5480733A true JPS5480733A (en) | 1979-06-27 |
Family
ID=15446086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14813777A Pending JPS5480733A (en) | 1977-12-12 | 1977-12-12 | Speaker diaphragm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5480733A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5997034U (en) * | 1982-12-22 | 1984-06-30 | ダイヤテックス株式会社 | Aluminum vapor deposited sheet |
JPH01309499A (en) * | 1989-04-14 | 1989-12-13 | Onkyo Corp | Diaphragm for speaker |
-
1977
- 1977-12-12 JP JP14813777A patent/JPS5480733A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5997034U (en) * | 1982-12-22 | 1984-06-30 | ダイヤテックス株式会社 | Aluminum vapor deposited sheet |
JPH01309499A (en) * | 1989-04-14 | 1989-12-13 | Onkyo Corp | Diaphragm for speaker |
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