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JPS57136898A - Dynamic type speaker - Google Patents

Dynamic type speaker

Info

Publication number
JPS57136898A
JPS57136898A JP2259281A JP2259281A JPS57136898A JP S57136898 A JPS57136898 A JP S57136898A JP 2259281 A JP2259281 A JP 2259281A JP 2259281 A JP2259281 A JP 2259281A JP S57136898 A JPS57136898 A JP S57136898A
Authority
JP
Japan
Prior art keywords
diaphragm
node
coupler
resonance mode
plural
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
JP2259281A
Other languages
Japanese (ja)
Inventor
Hiroshi Takeuchi
Yoshiaki Maruno
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 JP2259281A priority Critical patent/JPS57136898A/en
Publication of JPS57136898A publication Critical patent/JPS57136898A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To prevent distortion in reproducing characteristics and to realize the effect of node drive with good accuracy, by providing a plural of projections radially at an opening contacted opposing to a diaphragm of a coupler. CONSTITUTION:A voice coil 3 drives the node of the primary resonance mode of a diaphragm 1. A coupler 2 delivers a drive force obtained through the conversion of an electric signal exerted to the coil 3 to the node of the primary resonance mode of the diaphragm 1. In this case, a plural of projections 6 are radially at the opening contacted opposingly with the diaphragm 1 of the coupler 2. Thus, the variance of the node diameter of the resonance mode caused due to material and dimensional variance of the diaphragm 1 can apparently be absorbed and the node circle of the resonance can be driven.
JP2259281A 1981-02-17 1981-02-17 Dynamic type speaker Pending JPS57136898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2259281A JPS57136898A (en) 1981-02-17 1981-02-17 Dynamic type speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2259281A JPS57136898A (en) 1981-02-17 1981-02-17 Dynamic type speaker

Publications (1)

Publication Number Publication Date
JPS57136898A true JPS57136898A (en) 1982-08-24

Family

ID=12087110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2259281A Pending JPS57136898A (en) 1981-02-17 1981-02-17 Dynamic type speaker

Country Status (1)

Country Link
JP (1) JPS57136898A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137695U (en) * 1984-08-10 1986-03-08 ソニー株式会社 speaker device
JP2002155895A (en) * 2000-11-21 2002-05-31 Daikin Ind Ltd Impeller of a multi-blade blower, and a multi-blade blower provided with the impeller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137695U (en) * 1984-08-10 1986-03-08 ソニー株式会社 speaker device
JP2002155895A (en) * 2000-11-21 2002-05-31 Daikin Ind Ltd Impeller of a multi-blade blower, and a multi-blade blower provided with the impeller

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