JPS55124396A - Speaker diaphragm and its manufacturing device - Google Patents

Speaker diaphragm and its manufacturing device

Info

Publication number
JPS55124396A
JPS55124396A JP3244479A JP3244479A JPS55124396A JP S55124396 A JPS55124396 A JP S55124396A JP 3244479 A JP3244479 A JP 3244479A JP 3244479 A JP3244479 A JP 3244479A JP S55124396 A JPS55124396 A JP S55124396A
Authority
JP
Japan
Prior art keywords
papermaking
tank
liquid
diaphragm
directivity
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
JP3244479A
Other languages
Japanese (ja)
Inventor
Kazuo Tsuchiya
Fumio Kawahara
Masaki Kumanosato
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.)
Mogami Denki Corp
Pioneer Corp
Original Assignee
Mogami Denki Corp
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 Mogami Denki Corp, Pioneer Electronic Corp filed Critical Mogami Denki Corp
Priority to JP3244479A priority Critical patent/JPS55124396A/en
Publication of JPS55124396A publication Critical patent/JPS55124396A/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

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 enhance the directivity by providing the partitioning part between the papermaking room and the papermaking liquid supply room with elimination of the eddy and the turbulence occured inside the papermaking tank and then securing extension for the arrangement of the fibers forming the diaphragm from the center part toward the fringe part. CONSTITUTION:Papermaking mold 1 of the cone-type diaphragm is formed so as to secure the up-down movement within papermaking tank 2 via the expansion and contraction of rod 11a of air cylinder 11, and partitioning part 21 formed with the plate material containing a number of small holes drilled is provided near the bottom surface of tank 2. And supply opening 22 is provided at the lower side of part 21 for the papermaking liquid of the pulp or the like. At the same time, overflow tray 23 is provided over the entire outer circumference of upper edge part 2a of tank 2, and thus the pulp liquid overflown from part 2a is received at tray 23 to be returned to the liquid tank. As a result, the radial formation is secured for the fibers of the diaphragm received the papermaking form the center toward the outer circumference, thus enhancing both the directivity and the Young's modulus.
JP3244479A 1979-03-20 1979-03-20 Speaker diaphragm and its manufacturing device Pending JPS55124396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3244479A JPS55124396A (en) 1979-03-20 1979-03-20 Speaker diaphragm and its manufacturing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3244479A JPS55124396A (en) 1979-03-20 1979-03-20 Speaker diaphragm and its manufacturing device

Publications (1)

Publication Number Publication Date
JPS55124396A true JPS55124396A (en) 1980-09-25

Family

ID=12359125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3244479A Pending JPS55124396A (en) 1979-03-20 1979-03-20 Speaker diaphragm and its manufacturing device

Country Status (1)

Country Link
JP (1) JPS55124396A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003065765A1 (en) * 2002-02-01 2003-08-07 Matsushita Electric Industrial Co., Ltd. Device and method for manufacturing speaker diaphragm, the diaphragm, and speaker
WO2006100822A1 (en) * 2005-03-22 2006-09-28 Matsushita Electric Industrial Co., Ltd. Process for producing speaker diaphragm, speaker diaphragm produced by the process, and speaker with the diaphragm
WO2014132392A1 (en) * 2013-02-28 2014-09-04 パイオニア株式会社 Manufacturing method for laminated body

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003065765A1 (en) * 2002-02-01 2003-08-07 Matsushita Electric Industrial Co., Ltd. Device and method for manufacturing speaker diaphragm, the diaphragm, and speaker
US7118649B2 (en) 2002-02-01 2006-10-10 Matsushita Electric Industrial Co., Ltd. Device and method for manufacturing speaker diaphragm, the diaphragm, and speaker
WO2006100822A1 (en) * 2005-03-22 2006-09-28 Matsushita Electric Industrial Co., Ltd. Process for producing speaker diaphragm, speaker diaphragm produced by the process, and speaker with the diaphragm
US7582191B2 (en) 2005-03-22 2009-09-01 Panasonic Corporation Process for producing loudspeaker diaphragm, loudspeaker diaphragm produced by the process, and loudspeaker with the diaphragm
WO2014132392A1 (en) * 2013-02-28 2014-09-04 パイオニア株式会社 Manufacturing method for laminated body
CN105009605A (en) * 2013-02-28 2015-10-28 日本先锋公司 Manufacturing method for laminated body
JPWO2014132392A1 (en) * 2013-02-28 2017-02-02 パイオニア株式会社 Manufacturing method of laminate
CN105009605B (en) * 2013-02-28 2018-06-08 日本先锋公司 The manufacturing method and manufacturing device of diaphragm for speaker

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