JPS568997A - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
JPS568997A
JPS568997A JP8528779A JP8528779A JPS568997A JP S568997 A JPS568997 A JP S568997A JP 8528779 A JP8528779 A JP 8528779A JP 8528779 A JP8528779 A JP 8528779A JP S568997 A JPS568997 A JP S568997A
Authority
JP
Japan
Prior art keywords
coil
adhesives
diaphragm
bonded
cylinder
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
JP8528779A
Other languages
Japanese (ja)
Inventor
Hideo Kurose
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.)
KUWATA MOMOYO
Original Assignee
KUWATA MOMOYO
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 KUWATA MOMOYO filed Critical KUWATA MOMOYO
Priority to JP8528779A priority Critical patent/JPS568997A/en
Publication of JPS568997A publication Critical patent/JPS568997A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Landscapes

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

Abstract

PURPOSE:To improve the efficiency of a coil with the occupation area of the coil reduced by using a voice coil obtained by winding a well-conductive strand with its surface insulated in a cylindrical body and by excluding the bobbin of the coil by an insulator cylinder whose diameter is close to that of the coil. CONSTITUTION:A strand of thin copper or aluminum foil, after being applied with a heat-proof insulating coating on its surface, is wound in a coil shape to form voice coil body 31, whose wind-starting and ending conductive parts 32 and 33 are elongated to form a cylindrical space. Into this cylindrical space, hard and lightweight insulator cylinder 34 with a little acoustic tranmission loss is inserted and concatenated and hardly stuck in a body by adhesives. To the tip part of this cylinder 34, diaphragm 36 is bonded by adhesives and near this bonding part, corrugated damper 37 is bonded, so that coil body 31 will be held axially slidable. Then, the occupation area of coil body 31 is reduced and acoustic energy of high efficiency is supplied to diaphragm 36.
JP8528779A 1979-07-05 1979-07-05 Loudspeaker Pending JPS568997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8528779A JPS568997A (en) 1979-07-05 1979-07-05 Loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8528779A JPS568997A (en) 1979-07-05 1979-07-05 Loudspeaker

Publications (1)

Publication Number Publication Date
JPS568997A true JPS568997A (en) 1981-01-29

Family

ID=13854346

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8528779A Pending JPS568997A (en) 1979-07-05 1979-07-05 Loudspeaker

Country Status (1)

Country Link
JP (1) JPS568997A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5062140A (en) * 1988-04-27 1991-10-29 Sony Corporation Induction speaker
US5197104A (en) * 1991-04-18 1993-03-23 Josef Lakatos Electrodynamic loudspeaker with electromagnetic impedance sensor coil
WO1994016536A1 (en) * 1993-01-06 1994-07-21 Velodyne Acoustics, Inc. Speaker containing dual coil
JPH06237500A (en) * 1993-11-16 1994-08-23 Sony Corp Electroacoustic transducer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5062140A (en) * 1988-04-27 1991-10-29 Sony Corporation Induction speaker
US5197104A (en) * 1991-04-18 1993-03-23 Josef Lakatos Electrodynamic loudspeaker with electromagnetic impedance sensor coil
WO1994016536A1 (en) * 1993-01-06 1994-07-21 Velodyne Acoustics, Inc. Speaker containing dual coil
US5832096A (en) * 1993-01-06 1998-11-03 Velodyne Acoustics, Inc. Speaker containing dual coil
JPH06237500A (en) * 1993-11-16 1994-08-23 Sony Corp Electroacoustic transducer

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