JPS56114101A - Oscillation damping material for acoustic apparatus - Google Patents

Oscillation damping material for acoustic apparatus

Info

Publication number
JPS56114101A
JPS56114101A JP1566380A JP1566380A JPS56114101A JP S56114101 A JPS56114101 A JP S56114101A JP 1566380 A JP1566380 A JP 1566380A JP 1566380 A JP1566380 A JP 1566380A JP S56114101 A JPS56114101 A JP S56114101A
Authority
JP
Japan
Prior art keywords
iron oxide
speaker
damping material
oscillation damping
sintering
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
JP1566380A
Other languages
Japanese (ja)
Inventor
Jun Inagaki
Yoshihiro Kenmoku
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1566380A priority Critical patent/JPS56114101A/en
Publication of JPS56114101A publication Critical patent/JPS56114101A/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
    • 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)
  • Magnetic Ceramics (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

PURPOSE:To improve acoustic characteristics of the speaker enclosure and the record player board, by making the iron oxide into a rigid body by a binder or sintering and by forming the solid layer of this rigid body together with another plate form face in one body. CONSTITUTION:The iron oxide is mixed with the binder such as vinyl chloride polymer and is solidified into an arbitrary form or made into one body by sintering. This solidified material is stuck to the wooden plate or the plastic plate. In respect to the speaker encolosure, the magnetic field of the magnet of the speaker is shielded if oscillation damping material 1 where magnetite, ferrite, gamma hematite, and iron sand are used as the iron oxide is constituted.
JP1566380A 1980-02-12 1980-02-12 Oscillation damping material for acoustic apparatus Pending JPS56114101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1566380A JPS56114101A (en) 1980-02-12 1980-02-12 Oscillation damping material for acoustic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1566380A JPS56114101A (en) 1980-02-12 1980-02-12 Oscillation damping material for acoustic apparatus

Publications (1)

Publication Number Publication Date
JPS56114101A true JPS56114101A (en) 1981-09-08

Family

ID=11894972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1566380A Pending JPS56114101A (en) 1980-02-12 1980-02-12 Oscillation damping material for acoustic apparatus

Country Status (1)

Country Link
JP (1) JPS56114101A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009144818A1 (en) * 2008-05-30 2009-12-03 パイオニア株式会社 Speaker system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237901B2 (en) * 1972-09-19 1977-09-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237901B2 (en) * 1972-09-19 1977-09-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009144818A1 (en) * 2008-05-30 2009-12-03 パイオニア株式会社 Speaker system
JP4989763B2 (en) * 2008-05-30 2012-08-01 パイオニア株式会社 Speaker system

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