JPS5612198A - Forming unit of diaphragm for loudspeaker - Google Patents

Forming unit of diaphragm for loudspeaker

Info

Publication number
JPS5612198A
JPS5612198A JP8772979A JP8772979A JPS5612198A JP S5612198 A JPS5612198 A JP S5612198A JP 8772979 A JP8772979 A JP 8772979A JP 8772979 A JP8772979 A JP 8772979A JP S5612198 A JPS5612198 A JP S5612198A
Authority
JP
Japan
Prior art keywords
mold
female
diaphragm
female mold
metal foil
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
JP8772979A
Other languages
Japanese (ja)
Inventor
Noboru Koizumi
Masaaki Kimura
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 JP8772979A priority Critical patent/JPS5612198A/en
Publication of JPS5612198A publication Critical patent/JPS5612198A/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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02—Dies; Accessories
    • B44B5/026—Dies

Landscapes

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

Abstract

PURPOSE:To emboss a diaphragm with accuracy by making a male mold of hard rubber and a female mold of metal and then by chasing the concave surface of the female mold with concave designs. CONSTITUTION:On female mold 9 formed metal, plane metal foil 11 of aluminum, etc., is arranged. Male mold 6 made of hard rubber moved downward to hold metal foil 11 by pressing clamp 8 against the outer circumferential part of female mold 9 first, and then male mold 6 while brought into contact with metal foil 11 is further moved downward to form a shape determined by female mole 9 and male mold 6. When made mold 6 comes into the strongest contact with female mold 9, the elasticity of male mold 6 presses concave chased pattern 10 of female mold 9 into metal foil 11 to chase the diaphragm with designs of characters and symbols. Then, male mold 6 is elevated and the loudspeaker diaphragm is taken out of female mold 9.
JP8772979A 1979-07-10 1979-07-10 Forming unit of diaphragm for loudspeaker Pending JPS5612198A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8772979A JPS5612198A (en) 1979-07-10 1979-07-10 Forming unit of diaphragm for loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8772979A JPS5612198A (en) 1979-07-10 1979-07-10 Forming unit of diaphragm for loudspeaker

Publications (1)

Publication Number Publication Date
JPS5612198A true JPS5612198A (en) 1981-02-06

Family

ID=13922998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8772979A Pending JPS5612198A (en) 1979-07-10 1979-07-10 Forming unit of diaphragm for loudspeaker

Country Status (1)

Country Link
JP (1) JPS5612198A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59179192A (en) * 1983-03-31 1984-10-11 Gokou Seisakusho:Kk Waste water treating apparatus
KR100848648B1 (en) * 2001-12-21 2008-07-28 주식회사 포스코 Forming tool of embossed can body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103849A (en) * 1975-03-10 1976-09-14 Yoshida Hakuo Biso Kk HAKUOSHISOCHI
JPS5216463A (en) * 1975-07-30 1977-02-07 Hitachi Ltd Method of drawing metal leaves

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51103849A (en) * 1975-03-10 1976-09-14 Yoshida Hakuo Biso Kk HAKUOSHISOCHI
JPS5216463A (en) * 1975-07-30 1977-02-07 Hitachi Ltd Method of drawing metal leaves

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59179192A (en) * 1983-03-31 1984-10-11 Gokou Seisakusho:Kk Waste water treating apparatus
KR100848648B1 (en) * 2001-12-21 2008-07-28 주식회사 포스코 Forming tool of embossed can body

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