JPS56147597A - Diaphragm plate for flat speaker - Google Patents

Diaphragm plate for flat speaker

Info

Publication number
JPS56147597A
JPS56147597A JP5152780A JP5152780A JPS56147597A JP S56147597 A JPS56147597 A JP S56147597A JP 5152780 A JP5152780 A JP 5152780A JP 5152780 A JP5152780 A JP 5152780A JP S56147597 A JPS56147597 A JP S56147597A
Authority
JP
Japan
Prior art keywords
diaphragm plate
cut
beryllium
honey
aluminum
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
JP5152780A
Other languages
Japanese (ja)
Inventor
Tetsuo Kawamura
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 JP5152780A priority Critical patent/JPS56147597A/en
Publication of JPS56147597A publication Critical patent/JPS56147597A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To suppress the sectional oscillation without lowering the sound level, by providing other substance with the cut-off part which is the center of diaphragm plate. CONSTITUTION:The center of the diaphragm plate 2 of circular shape consisting of the honey-comb core 3 formed with material such as aluminum and beryllium and the surface material 4 such as aluminum, beryllium, synthetic resin and paper attached on the upper and lower surface of the honey-comb core 3, is cut off in concentric shape, and the material of different property 5 having small density, and suitable rigidity and inner loss, such as foaming sterol, foaming urethane and paper is filled in the cut-off part, so that it is incorporated as the same plane as the surface material 4.
JP5152780A 1980-04-18 1980-04-18 Diaphragm plate for flat speaker Pending JPS56147597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5152780A JPS56147597A (en) 1980-04-18 1980-04-18 Diaphragm plate for flat speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5152780A JPS56147597A (en) 1980-04-18 1980-04-18 Diaphragm plate for flat speaker

Publications (1)

Publication Number Publication Date
JPS56147597A true JPS56147597A (en) 1981-11-16

Family

ID=12889478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5152780A Pending JPS56147597A (en) 1980-04-18 1980-04-18 Diaphragm plate for flat speaker

Country Status (1)

Country Link
JP (1) JPS56147597A (en)

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