JPS6412699A - Speaker - Google Patents

Speaker

Info

Publication number
JPS6412699A
JPS6412699A JP16846087A JP16846087A JPS6412699A JP S6412699 A JPS6412699 A JP S6412699A JP 16846087 A JP16846087 A JP 16846087A JP 16846087 A JP16846087 A JP 16846087A JP S6412699 A JPS6412699 A JP S6412699A
Authority
JP
Japan
Prior art keywords
space
outer diameter
expanded
compressed
vibration
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
JP16846087A
Other languages
Japanese (ja)
Inventor
Shigeru Honda
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP16846087A priority Critical patent/JPS6412699A/en
Publication of JPS6412699A publication Critical patent/JPS6412699A/en
Pending legal-status Critical Current

Links

Landscapes

  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

PURPOSE:To attain smooth vibration of a vibration system by providing a throughhole whose outer diameter is specified to the center of a flat diaphragm. CONSTITUTION:The outer diameter D of the throughhole 10a provided to a flat diaphragm 10 is larger than the outer diameter d1 of the 1st bobbin 5, and smaller than the outer diameter d2 of the 1st sub cone 7. Thus, a 1st space A of a 1st magnetic circuit 1 and a 2nd space B of a 2nd magnetic circuit 11 are communicated and when the 1st space A is expanded, the 2nd space B is compressed and since the 2nd space B is expanded with the 1st space A compressed, the total volume of the 1st space A and the 2nd space B is always constant. Thus, the air in the 1st space A and the 2nd space B is not compressed and expanded, then the vibration of the vibration system is not suppressed but smoothed.
JP16846087A 1987-07-06 1987-07-06 Speaker Pending JPS6412699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16846087A JPS6412699A (en) 1987-07-06 1987-07-06 Speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16846087A JPS6412699A (en) 1987-07-06 1987-07-06 Speaker

Publications (1)

Publication Number Publication Date
JPS6412699A true JPS6412699A (en) 1989-01-17

Family

ID=15868523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16846087A Pending JPS6412699A (en) 1987-07-06 1987-07-06 Speaker

Country Status (1)

Country Link
JP (1) JPS6412699A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009206808A (en) * 2008-02-27 2009-09-10 Onkyo Corp Loudspeaker
US7922065B2 (en) 2004-08-02 2011-04-12 Ati Properties, Inc. Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5451816A (en) * 1977-09-30 1979-04-24 Sony Corp Speaker
JPS5740719A (en) * 1980-08-25 1982-03-06 Nec Corp Magnetic recorder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5451816A (en) * 1977-09-30 1979-04-24 Sony Corp Speaker
JPS5740719A (en) * 1980-08-25 1982-03-06 Nec Corp Magnetic recorder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7922065B2 (en) 2004-08-02 2011-04-12 Ati Properties, Inc. Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts
JP2009206808A (en) * 2008-02-27 2009-09-10 Onkyo Corp Loudspeaker

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