JPS56795A - Variable volume speaker box - Google Patents

Variable volume speaker box

Info

Publication number
JPS56795A
JPS56795A JP7572379A JP7572379A JPS56795A JP S56795 A JPS56795 A JP S56795A JP 7572379 A JP7572379 A JP 7572379A JP 7572379 A JP7572379 A JP 7572379A JP S56795 A JPS56795 A JP S56795A
Authority
JP
Japan
Prior art keywords
bellows
speaker box
variable volume
speaker
volume speaker
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
JP7572379A
Other languages
Japanese (ja)
Inventor
Yutaka Fukuda
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7572379A priority Critical patent/JPS56795A/en
Publication of JPS56795A publication Critical patent/JPS56795A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
    • H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers

Abstract

PURPOSE:To perform the increase in the low sound characteristics in use and the reduction in the occupied space in nonuse, by enabling the change of inner volume through the use of bellows. CONSTITUTION:The speaker 4 is fixed in the open hole 7 of the front plate 1, and the opening of the bellows 3 is fitted to the front plate 1 in the form that this speaker 4 is covered from the back. Further, the opening of opposite side of the bellows is fixed to the rear plate 2. Thus, in use, the bellows is extended and the increase in low sound characteristics by increasing the volume of the speaker box, and in not use, the bellows 3 is compressed and the space occupied by the speaker box can be reduced.
JP7572379A 1979-06-18 1979-06-18 Variable volume speaker box Pending JPS56795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7572379A JPS56795A (en) 1979-06-18 1979-06-18 Variable volume speaker box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7572379A JPS56795A (en) 1979-06-18 1979-06-18 Variable volume speaker box

Publications (1)

Publication Number Publication Date
JPS56795A true JPS56795A (en) 1981-01-07

Family

ID=13584464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7572379A Pending JPS56795A (en) 1979-06-18 1979-06-18 Variable volume speaker box

Country Status (1)

Country Link
JP (1) JPS56795A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269921U (en) * 1975-11-20 1977-05-24
JPH01119291U (en) * 1988-02-05 1989-08-11
FR2754415A1 (en) * 1996-10-07 1998-04-10 Lagarrigue Cecile METHOD AND APPARATUS FOR A VARIABLE VOLUME ACOUSTIC SPEAKER
WO2009123825A1 (en) * 2008-04-03 2009-10-08 Bose Corporation Loudspeaker assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269921U (en) * 1975-11-20 1977-05-24
JPH01119291U (en) * 1988-02-05 1989-08-11
FR2754415A1 (en) * 1996-10-07 1998-04-10 Lagarrigue Cecile METHOD AND APPARATUS FOR A VARIABLE VOLUME ACOUSTIC SPEAKER
WO1998016085A1 (en) * 1996-10-07 1998-04-16 Pierre Piccaluga Method and apparatus for acoustic chamber with variable volume
WO2009123825A1 (en) * 2008-04-03 2009-10-08 Bose Corporation Loudspeaker assembly
US8345909B2 (en) 2008-04-03 2013-01-01 Bose Corporation Loudspeaker assembly

Similar Documents

Publication Publication Date Title
USD255569S (en) Combined headphone and radio
JPS56795A (en) Variable volume speaker box
GB636903A (en) Electronic hearing aid
USD254882S (en) Cabinet for housing stereophonic and electronic equipment
USD247489S (en) Speaker
USD258215S (en) Mute for brass instruments
GB631799A (en) Improvements in or relating to loud speakers
JPS5388719A (en) Head phone
USD270726S (en) Miniature telephone enclosure
USD251309S (en) Exerciser
USD246488S (en) Buckle
GB747263A (en) Improvements in or relating to loudspeaker cabinets
USD253819S (en) Low frequency loudspeaker
USD245546S (en) Diaper cover
USD268239S (en) Extensible table
JPS56126397A (en) Speaker system
GB912430A (en) Improvements in or relating to loud speakers
GB1297753A (en)
JPS53129023A (en) Dynamic loudspeaker
USD250998S (en) Volume reduction scale
USD246710S (en) Loudspeaker cabinet
USD261759S (en) Loudspeaker
USD246174S (en) Speaker enclosures
JPS56125190A (en) Speaker system
USD250963S (en) Urological instrument handle