JPS56106495A - Speaker - Google Patents

Speaker

Info

Publication number
JPS56106495A
JPS56106495A JP982580A JP982580A JPS56106495A JP S56106495 A JPS56106495 A JP S56106495A JP 982580 A JP982580 A JP 982580A JP 982580 A JP982580 A JP 982580A JP S56106495 A JPS56106495 A JP S56106495A
Authority
JP
Japan
Prior art keywords
projected
grooves
channels
fitting
hollow
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
JP982580A
Other languages
Japanese (ja)
Inventor
Kazuro Okuzawa
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 JP982580A priority Critical patent/JPS56106495A/en
Publication of JPS56106495A publication Critical patent/JPS56106495A/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 obtain a high-quality flat diaphragm with a uniform performance, by forming the hollow grooves and projected channels alternately on the connected surface of the material obtained by soaking the synthetic resin into the reinforcement member and then securing a connection among the hollow grooves and among the projected channels respectively. CONSTITUTION:The flat diaphragm 26 is formed by using the molded substances 33 and 34 made by providing the hollow grooves 31 and projected channels 32 alternately on a single surface of the material obtained by soaking the synthetic resin into the reinforcement member having an excellent rigidity and by the heat/pressure forming method and then fitting together the grooves 31 and the channels 32 respectively by adhesion. The grooves 31 and channels 32 can be formed radially. A fitting hollow part is provided at the center of the projected channel of one molded substance, and the fitting projected part is provided to the projected channel of the other molded substance. Then the fitting hollow part is fitted to the projected fitting part with pressure to carry out a positioning. An air exhaustion groove can be provided at a part of the channel 32 to exhaust the air in case the air among the grooves 31 is expanded by a change of temperature.
JP982580A 1980-01-29 1980-01-29 Speaker Pending JPS56106495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP982580A JPS56106495A (en) 1980-01-29 1980-01-29 Speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP982580A JPS56106495A (en) 1980-01-29 1980-01-29 Speaker

Publications (1)

Publication Number Publication Date
JPS56106495A true JPS56106495A (en) 1981-08-24

Family

ID=11730905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP982580A Pending JPS56106495A (en) 1980-01-29 1980-01-29 Speaker

Country Status (1)

Country Link
JP (1) JPS56106495A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102094A (en) * 1983-11-08 1985-06-06 Matsushita Electric Ind Co Ltd Manufacture of diaphragm for flat speaker
JPS60132093U (en) * 1984-02-10 1985-09-04 オンキヨー株式会社 flat plate diaphragm
US6717807B2 (en) 2002-03-12 2004-04-06 Fujitsu Limited Cooling structure for electronic circuit unit
US9839155B2 (en) 2012-05-16 2017-12-05 Panduit Corp. Thermal ducting system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5574294A (en) * 1978-11-30 1980-06-04 Pioneer Electronic Corp Audio vibration plate and its manufacture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5574294A (en) * 1978-11-30 1980-06-04 Pioneer Electronic Corp Audio vibration plate and its manufacture

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102094A (en) * 1983-11-08 1985-06-06 Matsushita Electric Ind Co Ltd Manufacture of diaphragm for flat speaker
JPS60132093U (en) * 1984-02-10 1985-09-04 オンキヨー株式会社 flat plate diaphragm
US6717807B2 (en) 2002-03-12 2004-04-06 Fujitsu Limited Cooling structure for electronic circuit unit
US9839155B2 (en) 2012-05-16 2017-12-05 Panduit Corp. Thermal ducting system

Similar Documents

Publication Publication Date Title
ES447550A1 (en) Unidirectional condenser microphone
FR2292623B1 (en)
JPS6477515A (en) Manufacture of thin molded item with projected portion
JPS56106495A (en) Speaker
JPS5574294A (en) Audio vibration plate and its manufacture
GB938797A (en) Improvements in or relating to the manufacture of vehicle tyres
JPS5573533A (en) Production of formed polystyrene bead foam covered on its surface with cloth skin
JPS55162696A (en) Manufacture for speaker diaphragm plate
JPS5476134A (en) Manufacture of speaker diaphragm
JPS56137035A (en) Heat exchanger unit and manufacture thereof
JPS56106496A (en) Production of speaker diaphragm
JPS6482800A (en) Manufacture of diaphragm for speaker
JPS5736624A (en) Coat hanger die
JPS57135595A (en) Diaphragm for electroacoustic converter
JPS54159548A (en) Dry type clutch facing and its manufacturing method
JPS5723391A (en) Loudspeaker
JPS55118298A (en) Press forming method of resin made ribbed diaphragm plate in ultra-thin type speaker
JPS57187211A (en) Molding apparatus
JPS55137798A (en) Electroacoustic transducer
SU1531231A1 (en) Method of manufacturing diaphragm unit of electroacoustic transducer
JPS5684927A (en) Manufacture of composite cellular molding
JPS6190394U (en)
JPS56107695A (en) Acoustic diaphragm and its preparation
JPS56168493A (en) Production of speaker diaphragm
JPS52116251A (en) Coupling of photo-fiber