JPS5735496A - Box material for speaker - Google Patents

Box material for speaker

Info

Publication number
JPS5735496A
JPS5735496A JP10941080A JP10941080A JPS5735496A JP S5735496 A JPS5735496 A JP S5735496A JP 10941080 A JP10941080 A JP 10941080A JP 10941080 A JP10941080 A JP 10941080A JP S5735496 A JPS5735496 A JP S5735496A
Authority
JP
Japan
Prior art keywords
mica
speaker
composite material
thermoplastic resin
reinforcing member
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
JP10941080A
Other languages
Japanese (ja)
Inventor
Kosaku Murata
Yoshiaki Maruno
Mitsuru Yashiro
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10941080A priority Critical patent/JPS5735496A/en
Publication of JPS5735496A publication Critical patent/JPS5735496A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casings For Electric Apparatus (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To avoid the generation of abnormal tone and to improve moisture-proof, by using a composite material in which thermoplastic resin or thermosetting resin is used for matrix member and mica for reinforcing member, as a box material. CONSTITUTION:As mica for reinforcing member, phlogopite type mica, K2(Mg, Fe<+2>)6(Al2Si6O10)(OH,F)4 are used, where the flake diameters of the mica is 200- 325 mesh and apparent density is 0.14-0.21(g/cm<3>). As the matrix member, thermoplastic resin, polypropylene, is used. The mica content of the composite material is 0-50wt%. Thus, the bending elasticity is increased, the internal loss is made greater, no abnormal tone is generated, and no variance is caused to the sound pressure frequency of a speaker and the distortion factor is decreased.
JP10941080A 1980-08-09 1980-08-09 Box material for speaker Pending JPS5735496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10941080A JPS5735496A (en) 1980-08-09 1980-08-09 Box material for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10941080A JPS5735496A (en) 1980-08-09 1980-08-09 Box material for speaker

Publications (1)

Publication Number Publication Date
JPS5735496A true JPS5735496A (en) 1982-02-26

Family

ID=14509535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10941080A Pending JPS5735496A (en) 1980-08-09 1980-08-09 Box material for speaker

Country Status (1)

Country Link
JP (1) JPS5735496A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008193477A (en) * 2007-02-06 2008-08-21 Matsushita Electric Ind Co Ltd Speaker box, speaker system using the same and electronic apparatus using the speaker system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5264903A (en) * 1975-11-25 1977-05-28 Sony Corp Molding composition for acoustic apparatus
JPS5446547A (en) * 1977-09-20 1979-04-12 Torio Kk Cabinet for sound regenerative apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5264903A (en) * 1975-11-25 1977-05-28 Sony Corp Molding composition for acoustic apparatus
JPS5446547A (en) * 1977-09-20 1979-04-12 Torio Kk Cabinet for sound regenerative apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008193477A (en) * 2007-02-06 2008-08-21 Matsushita Electric Ind Co Ltd Speaker box, speaker system using the same and electronic apparatus using the speaker system

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