JPS5577298A - Plane type speaker - Google Patents

Plane type speaker

Info

Publication number
JPS5577298A
JPS5577298A JP14478079A JP14478079A JPS5577298A JP S5577298 A JPS5577298 A JP S5577298A JP 14478079 A JP14478079 A JP 14478079A JP 14478079 A JP14478079 A JP 14478079A JP S5577298 A JPS5577298 A JP S5577298A
Authority
JP
Japan
Prior art keywords
diaphragm
bobbin
damper
vibrations
rotational vibrations
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.)
Granted
Application number
JP14478079A
Other languages
Japanese (ja)
Other versions
JPH0130360B2 (en
Inventor
Jun Matsuda
Jun Kishigami
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 JP14478079A priority Critical patent/JPS5577298A/en
Publication of JPS5577298A publication Critical patent/JPS5577298A/en
Publication of JPH0130360B2 publication Critical patent/JPH0130360B2/ja
Granted 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Abstract

PURPOSE:To simplify structure and manufacture and also to improve acoustic characteristics remarkably by removing rotational vibrations of a plane type diaphragm by a bobbin counted with it perpendicularly and a damper supporting the other terminal of this bobbin. CONSTITUTION:A vibration system consists of plane-shaped diaphragm 11, voice coil bobbin 13 bonded on the back surface of diaphragm 11, voice coil 14, and damper 15 coupled on the external circumference of bobbin 13. On the other hand, a drive system is composed of magnetic circuit 22. For example, bobbin 30 is bonded perpendicularly making center position P1 of diaphragm 1, i.e. the axis center of diaphragm 11 agree mutually, and free terminal part 29a of it is supported by damper 32. Consequently, rotational vibrations in arrow (a) and (b) directions of diaphragm 11 are converted into horizontal displacement vibrations in the arrow (c) direction of bobbin 30, which are damped effectively by the center coercive force of damper 32, so that rotational vibrations of diaphragm 11 can definitely be prevented.
JP14478079A 1979-11-08 1979-11-08 Plane type speaker Granted JPS5577298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14478079A JPS5577298A (en) 1979-11-08 1979-11-08 Plane type speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14478079A JPS5577298A (en) 1979-11-08 1979-11-08 Plane type speaker

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP9881878A Division JPS5525285A (en) 1978-08-14 1978-08-14 Speaker

Publications (2)

Publication Number Publication Date
JPS5577298A true JPS5577298A (en) 1980-06-10
JPH0130360B2 JPH0130360B2 (en) 1989-06-19

Family

ID=15370256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14478079A Granted JPS5577298A (en) 1979-11-08 1979-11-08 Plane type speaker

Country Status (1)

Country Link
JP (1) JPS5577298A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385210A (en) * 1980-09-19 1983-05-24 Electro-Magnetic Corporation Electro-acoustic planar transducer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5079433U (en) * 1973-11-19 1975-07-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5079433U (en) * 1973-11-19 1975-07-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385210A (en) * 1980-09-19 1983-05-24 Electro-Magnetic Corporation Electro-acoustic planar transducer

Also Published As

Publication number Publication date
JPH0130360B2 (en) 1989-06-19

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