KR910021175A - Acoustic diaphragm and its manufacturing method - Google Patents

Acoustic diaphragm and its manufacturing method Download PDF

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Publication number
KR910021175A
KR910021175A KR1019910007921A KR910007921A KR910021175A KR 910021175 A KR910021175 A KR 910021175A KR 1019910007921 A KR1019910007921 A KR 1019910007921A KR 910007921 A KR910007921 A KR 910007921A KR 910021175 A KR910021175 A KR 910021175A
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KR
South Korea
Prior art keywords
cellulose
acoustic diaphragm
finely fibrillated
web
reinforcement
Prior art date
Application number
KR1019910007921A
Other languages
Korean (ko)
Other versions
KR100230673B1 (en
Inventor
마사루 우류
노보루 구리하라
Original Assignee
원본미기재
소니 가부시키가이샤
아지노모토 가부시키가이샤
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.)
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Publication date
Application filed by 원본미기재, 소니 가부시키가이샤, 아지노모토 가부시키가이샤 filed Critical 원본미기재
Publication of KR910021175A publication Critical patent/KR910021175A/en
Application granted granted Critical
Publication of KR100230673B1 publication Critical patent/KR100230673B1/en

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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
    • 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
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
    • 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
    • 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
    • H04R7/12—Non-planar diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
    • H04R2231/001—Moulding aspects of diaphragm or surround
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/021—Diaphragms comprising cellulose-like materials, e.g. wood, paper, linen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/025—Diaphragms comprising polymeric materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/029—Diaphragms comprising fibres

Landscapes

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

Abstract

내용 없음No content

Description

음향 진동판 및 이의 제조방법Acoustic diaphragm and its manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 코운(cone) 형태의 와이어 스크린(wire screen)을 사용하는 웨브-형성 공정을 나타내는 도식적 횡단면도이고,FIG. 1 is a schematic cross sectional view showing a web-forming process using a cone-shaped wire screen,

제2a도 내지 제2c도는 드로오잉 프레스(drawing press)에 의해 반구형 진동판을 제조하는 방법을 나타내는데, 구체적으로, 제2a도는 평판 형태의 셀룰로오즈-직물 복합체를 나타내는 도식적 횡단면도이며, 제2b도는 드로오잉 프레스 가공공정을 나타내는 도식적 횡단면도이고, 제2c도는 반구형으로 성형시킨 셀룰로오즈-직물 복합체를 나타내는 도식적 횡단면도이다.2a to 2c show a method of manufacturing a hemispherical diaphragm by drawing press, specifically, FIG. 2a is a schematic cross sectional view showing a cellulose-fabric composite in the form of a plate, and FIG. 2b is a drawing press Figure 2 is a schematic cross sectional view showing a machining process, and Figure 2C is a schematic cross sectional view showing a cellulose-fabric composite molded in a hemispherical shape.

Claims (7)

제지 공정과 유사한 공정에 의해 미세하게 피브릴화된 셀룰로오즈의 웨브로부터 형성된 음향 진동판.An acoustic diaphragm formed from a web of cellulose finely fibrillated by a process similar to the papermaking process. 제1항에 있어서, 미세하게 피브릴화된 셀룰로오즈가, 캐나다 표준 자유도(Canadian standard freeness)가 300ml 이하인 셀룰로오즈인 음향 진동판.The acoustic diaphragm of claim 1, wherein the finely fibrillated cellulose is cellulose having a Canadian standard freeness of 300 ml or less. 미세하게 피브릴화된 셀룰로오즈의 웨브와 보강재가 서로 적층화된 상태로 존재하는 음향 진동판.An acoustic diaphragm in which a web of finely fibrillated cellulose and a reinforcement are stacked on each other. 제3항에 있어서, 보강재가 탄소 섬유, 유리 섬유, 폴리에스테르 섬유, 아라미드 섬유 또는 실크로 이루어진 직물 또는 부직물중의 하나인 음향 진동판.4. The acoustic diaphragm of claim 3, wherein the reinforcing material is one of a woven or nonwoven fabric consisting of carbon fiber, glass fiber, polyester fiber, aramid fiber or silk. 웨브-형성기의 와이어 스크린상에 보강재를 위치시키고, 이 보강재상에서 미세하게 피브릴화된 셀룰로오즈를 형성시킴으로써 복합 웨브를 형성함을 특징으로 하여, 음향 진동판을 제조하는 방법.A composite web is formed by placing a reinforcement on a wire screen of a web-former and forming finely fibrillated cellulose on the reinforcement. 제5항에 있어서, 펄프를 캐나다 표준 자유도가 300ml 이하가 될 때까지 빗팅(deating)시킴으로써, 미세하게 피브릴화된 셀룰로오즈를 수득하는 방법.The method of claim 5, wherein the pulp is debited until the Canadian standard degrees of freedom is 300 ml or less to obtain finely fibrillated cellulose. 제5항에 있어서, 미세하게 피브릴화된 셀룰로오즈가 박테리아성 배양에 의해 수득된 박테리아성 셀룰로오즈인 방법.The method of claim 5 wherein the finely fibrillated cellulose is bacterial cellulose obtained by bacterial culture. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910007921A 1990-05-18 1991-05-16 Acoustic diaphragm and method for producing same KR100230673B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP126819/90 1990-05-18
JP2126819A JP2953743B2 (en) 1990-05-18 1990-05-18 Acoustic diaphragm and manufacturing method thereof

Publications (2)

Publication Number Publication Date
KR910021175A true KR910021175A (en) 1991-12-20
KR100230673B1 KR100230673B1 (en) 1999-11-15

Family

ID=14944735

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910007921A KR100230673B1 (en) 1990-05-18 1991-05-16 Acoustic diaphragm and method for producing same

Country Status (4)

Country Link
EP (1) EP0457474B1 (en)
JP (1) JP2953743B2 (en)
KR (1) KR100230673B1 (en)
DE (1) DE69111297T2 (en)

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JP2719261B2 (en) * 1992-01-31 1998-02-25 シャープ株式会社 Speaker diaphragm
DE69428384T2 (en) * 1993-01-29 2002-06-13 Sony Corp., Tokio/Tokyo speaker
DE69431177T2 (en) * 1993-09-22 2003-05-08 Sony Corp., Tokio/Tokyo A horn speaker system
TW354866B (en) * 1994-03-31 1999-03-21 Matsushita Electric Ind Co Ltd Loudspeaker and a method for producing the same
JP2005096844A (en) * 2003-08-27 2005-04-14 Showa Marutsutsu Co Ltd Compact
JP2007088879A (en) * 2005-09-22 2007-04-05 Pioneer Electronic Corp Diaphragm for speaker
WO2007099865A1 (en) 2006-03-01 2007-09-07 Matsushita Electric Industrial Co., Ltd. Method for manufacturing component for speaker by papermaking, copmponent for speaker by papermaking, vibrating plate for speaker, subcone for speaker, dust cap for speaker, and speaker
JP4742940B2 (en) * 2006-03-29 2011-08-10 パナソニック株式会社 Speaker papermaking part manufacturing method, speaker papermaking part manufactured by this manufacturing method, and speaker
US8343313B2 (en) 2006-03-01 2013-01-01 Panasonic Corporation Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the same
JP2007235521A (en) * 2006-03-01 2007-09-13 Matsushita Electric Ind Co Ltd Production facility for paper diaphragm for speaker, paper diaphragm for speaker manufactured by the production facility, and speaker
JP4742941B2 (en) * 2006-03-29 2011-08-10 パナソニック株式会社 Speaker papermaking parts production equipment, speaker papermaking parts produced by this production equipment, and speakers
JP2008124962A (en) * 2006-11-15 2008-05-29 Matsushita Electric Ind Co Ltd Paper diaphragm for speakers, speaker using the diaphragm, electronic equipment and apparatus using the speaker
JP4765904B2 (en) * 2006-11-15 2011-09-07 パナソニック株式会社 Papermaking diaphragm for speaker, speaker using the same, and electronic device and apparatus using the speaker
JP2008160362A (en) * 2006-12-22 2008-07-10 Matsushita Electric Ind Co Ltd Dust cap for loudspeaker, loudspeaker using it and electronic equipment and device using its loudspeaker
JP4765927B2 (en) * 2006-12-22 2011-09-07 パナソニック株式会社 DUST CAP FOR SPEAKER, SPEAKER USING THE SAME, AND ELECTRONIC DEVICE AND DEVICE USING THE SPEAKER
JP4793255B2 (en) * 2006-12-26 2011-10-12 パナソニック株式会社 Speaker diaphragm, speaker using the same, and electronic device and apparatus using the speaker
JP4858156B2 (en) * 2006-12-22 2012-01-18 パナソニック株式会社 Speaker frame, speaker using the same, electronic device, and moving device
US8122996B2 (en) 2006-12-22 2012-02-28 Panasonic Corporation Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker
JP5018344B2 (en) * 2007-08-29 2012-09-05 パナソニック株式会社 Resin frame for speaker and speaker using the same
JP5470761B2 (en) 2008-07-07 2014-04-16 パナソニック株式会社 Speaker diaphragm, speaker using the same, electronic device and apparatus using the speaker, and method for manufacturing the speaker diaphragm
US8772003B2 (en) 2010-05-24 2014-07-08 Nympheas International Biomaterial Corp. Bacterial cellulose film and uses thereof
JP5240308B2 (en) * 2011-02-23 2013-07-17 パナソニック株式会社 Speaker diaphragm, speaker using the same, and electronic device and apparatus using the speaker
JP5333484B2 (en) * 2011-03-03 2013-11-06 パナソニック株式会社 Speaker frame, speaker using the same, electronic device, and moving device
JP2011142671A (en) * 2011-03-16 2011-07-21 Panasonic Corp Loudspeaker diaphragm, loudspeaker employing the same, and electronic equipment and apparatus employing the loudspeaker
JP2013226675A (en) * 2012-04-24 2013-11-07 Yamaha Corp Sheet for press forming and method for producing formed body
JP6584784B2 (en) * 2015-02-09 2019-10-02 フォスター電機株式会社 Method for manufacturing diaphragm for electroacoustic transducer
FR3035611B1 (en) * 2015-04-28 2019-08-09 Centre Technique Du Papier METHOD AND DEVICE FOR MANUFACTURING LAMINATED MATERIAL COMPRISING A FIBRILED CELLULOSE LAYER
WO2018079583A1 (en) * 2016-10-28 2018-05-03 ソニー株式会社 Electroacoustic transducer and electroacoustic transducer device
CN111918178B (en) * 2020-07-29 2021-12-10 国光电器股份有限公司 Preparation method of carbon fiber cone for loudspeaker
KR102410339B1 (en) * 2020-12-28 2022-06-22 범진시엔엘 주식회사 Method for manufacturing diaphragm of speaker

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Also Published As

Publication number Publication date
DE69111297T2 (en) 1996-01-11
DE69111297D1 (en) 1995-08-24
EP0457474A3 (en) 1992-09-16
JPH0423597A (en) 1992-01-27
EP0457474B1 (en) 1995-07-19
EP0457474A2 (en) 1991-11-21
KR100230673B1 (en) 1999-11-15
JP2953743B2 (en) 1999-09-27

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