JPS5527701A - Diaphragm for acoustic apparatus - Google Patents

Diaphragm for acoustic apparatus

Info

Publication number
JPS5527701A
JPS5527701A JP9995278A JP9995278A JPS5527701A JP S5527701 A JPS5527701 A JP S5527701A JP 9995278 A JP9995278 A JP 9995278A JP 9995278 A JP9995278 A JP 9995278A JP S5527701 A JPS5527701 A JP S5527701A
Authority
JP
Japan
Prior art keywords
diaphragm
rho
density
acoustic apparatus
inorganic
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
Application number
JP9995278A
Other languages
Japanese (ja)
Inventor
Nobuhiro Tsukagoshi
Shinichi Yokozeki
Toshikazu Yoshino
Yasuyuki Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP9995278A priority Critical patent/JPS5527701A/en
Publication of JPS5527701A publication Critical patent/JPS5527701A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To obtain a diaphragm featuring a low density and high elasticity by combining a large amount of the inorganic powder with the organil materiao such as the synthetic resin, the petroleum pitch and the like. CONSTITUTION:The organic material such as vinyl chloride 1 and the inorganic material such as graphite powder 2 are kneaded together with heating and then formed into the desire shape such as a dome, cone and others for the diaphragm. The diaphragm thus produced features such advantages as a light weight, high rigidity, large E/rho ratio between Young's modulus E and density rho and an extremely low production cost.
JP9995278A 1978-08-18 1978-08-18 Diaphragm for acoustic apparatus Pending JPS5527701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9995278A JPS5527701A (en) 1978-08-18 1978-08-18 Diaphragm for acoustic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9995278A JPS5527701A (en) 1978-08-18 1978-08-18 Diaphragm for acoustic apparatus

Publications (1)

Publication Number Publication Date
JPS5527701A true JPS5527701A (en) 1980-02-28

Family

ID=14261027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9995278A Pending JPS5527701A (en) 1978-08-18 1978-08-18 Diaphragm for acoustic apparatus

Country Status (1)

Country Link
JP (1) JPS5527701A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176899A (en) * 1981-04-23 1982-10-30 Pioneer Electronic Corp Diaphragm for acoustic device
JPS5816997U (en) * 1981-07-25 1983-02-02 佐野　晴彦 speaker cone
JPH01223899A (en) * 1988-03-03 1989-09-06 Pioneer Electron Corp Acoustic diaphragm member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176899A (en) * 1981-04-23 1982-10-30 Pioneer Electronic Corp Diaphragm for acoustic device
JPS5816997U (en) * 1981-07-25 1983-02-02 佐野　晴彦 speaker cone
JPH01223899A (en) * 1988-03-03 1989-09-06 Pioneer Electron Corp Acoustic diaphragm member

Similar Documents

Publication Publication Date Title
JPS53106752A (en) Reinforcing material and its composition for molding product
DE2962015D1 (en) Process for producing carbon black pellets and the pellets so produced
JPS5527701A (en) Diaphragm for acoustic apparatus
JPS5275690A (en) Production of carbon materials
JPS5381589A (en) Manufacturing of marble-like cured product
JPS53140375A (en) Sheet molding compounds and their production
JPS556905A (en) Diaphragm for acoustic apparatus and its manufacture
JPS546900A (en) Production of clean beryl single crystal
JPS5296231A (en) Production of acetylcellulose pulp
JPS5361581A (en) Paper sheet containing activated carbon and production thereof
JPS5332467A (en) Highly durable rubber screen
JPS546033A (en) Production of floor covering of sytheric resin
JPS55163602A (en) Arm pipe
JPS5294389A (en) Production of granulated moldable composite
JPS536623A (en) Production of inorganic fibers
JPS5411013A (en) Manufacture of boron-containing mettallic material
JPS53119322A (en) Production of acrylic fibers
JPS5335143A (en) Manufacturing process of carbon earth bar
JPS5318992A (en) Production of light emitting element
JPS52144379A (en) Production of binding material for fibrous diaphragm and diaphragm made of asbestos fibers
JPS52156846A (en) Preparation of cyanonorbornene
JPS52111897A (en) Production of adsorbent from vulcanized rubber
JPS53126042A (en) Production of enemel coating hardenable with active energy rays
JPS5528512A (en) Head shell
JPS53125292A (en) Composite activated carbon element and production thereof