JPS54134416A - Dome padiator speaker - Google Patents

Dome padiator speaker

Info

Publication number
JPS54134416A
JPS54134416A JP4176778A JP4176778A JPS54134416A JP S54134416 A JPS54134416 A JP S54134416A JP 4176778 A JP4176778 A JP 4176778A JP 4176778 A JP4176778 A JP 4176778A JP S54134416 A JPS54134416 A JP S54134416A
Authority
JP
Japan
Prior art keywords
wall
coil
diaphragm
vibrations
bobbine
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
JP4176778A
Other languages
Japanese (ja)
Inventor
Hiroshi Koizumi
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP4176778A priority Critical patent/JPS54134416A/en
Publication of JPS54134416A publication Critical patent/JPS54134416A/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
    • H04R7/26—Damping by means acting directly on free portion of diaphragm or cone

Abstract

PURPOSE:To make it possible to generate satisfactory acoustic output characteristics by preventing the unnecessary vibrations such as divided vibrations in a dome type diaphragm with the use of a brake. CONSTITUTION:A brake 11 made of an elastic materialf is attached to the upper side 3A of the pole 3 of a magnetic circuit such that is abuts against both the inner wall of a coil bobbine 7 wound with a voice coil 6 and arranged in the magnetic gap G of a magnetic pasage and the inner wall 5A in the vicinity of the fixing portion a to the coil bobbine 7 of a dome-shaped diaphragm 5. The brake 11 is made of a material such as rubber, foamed rubber or sponge so that the inner wall 7A of the coil bobbine 7 and the inner wall 5A of the diaphragm 5 are elastically supported. The diaphragm 5 has its vibrations braked such that the unnecessary vibrations such as noded vibations, diametrical deformation and eccentricity are eliminated.
JP4176778A 1978-04-11 1978-04-11 Dome padiator speaker Pending JPS54134416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4176778A JPS54134416A (en) 1978-04-11 1978-04-11 Dome padiator speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4176778A JPS54134416A (en) 1978-04-11 1978-04-11 Dome padiator speaker

Publications (1)

Publication Number Publication Date
JPS54134416A true JPS54134416A (en) 1979-10-18

Family

ID=12617540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4176778A Pending JPS54134416A (en) 1978-04-11 1978-04-11 Dome padiator speaker

Country Status (1)

Country Link
JP (1) JPS54134416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135299A (en) * 1984-12-06 1986-06-23 Fuji Elelctrochem Co Ltd Sponge built-in dynamic speaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135299A (en) * 1984-12-06 1986-06-23 Fuji Elelctrochem Co Ltd Sponge built-in dynamic speaker
JPH026280B2 (en) * 1984-12-06 1990-02-08 Fuji Electrochemical Co Ltd

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