JPS5589901A - Sound absorption body for speaker in automobile door - Google Patents

Sound absorption body for speaker in automobile door

Info

Publication number
JPS5589901A
JPS5589901A JP16329278A JP16329278A JPS5589901A JP S5589901 A JPS5589901 A JP S5589901A JP 16329278 A JP16329278 A JP 16329278A JP 16329278 A JP16329278 A JP 16329278A JP S5589901 A JPS5589901 A JP S5589901A
Authority
JP
Japan
Prior art keywords
speaker
sound absorption
porosity
absorption body
thin film
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
JP16329278A
Other languages
Japanese (ja)
Other versions
JPS579274B2 (en
Inventor
Takao Maruyama
Koichi Kusakawa
Toshiaki Kimura
Noboru Murata
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.)
NHK Spring Co Ltd
Original Assignee
NHK Spring 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 NHK Spring Co Ltd filed Critical NHK Spring Co Ltd
Priority to JP16329278A priority Critical patent/JPS5589901A/en
Publication of JPS5589901A publication Critical patent/JPS5589901A/en
Publication of JPS579274B2 publication Critical patent/JPS579274B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

PURPOSE: To prevent the speaker from rain water and to exclude the interference of car chamber due to resonance, allowing to reproduce audio in excellent manner, by providing the sound absorption body of foam and perforated material having a specific porosity and the thin film of non-porosity covering the outside.
CONSTITUTION: The porous sound absorbing body 6 such as polyurethane foam and felt is formed at the back of the speaker 1 fitted to the door 2 having the window glass 3 so that the porosity can be less than 70cc/cm2/second by taking it as the thickness of 10mm. The thin film 7 of non-porosity such as polyvinyl and silicone resin is laminated outside the main body 6 or sticked. The thickness of the film 7 can be below 200μ. By constituting the sound absorbing body 5, the through- hole 8 having the sectional area of 1W100% to the front aperture area of the speaker 1 is provided with the sound absorption body 5 to improve the sound absorption of low frequency band.
COPYRIGHT: (C)1980,JPO&Japio
JP16329278A 1978-12-27 1978-12-27 Sound absorption body for speaker in automobile door Granted JPS5589901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16329278A JPS5589901A (en) 1978-12-27 1978-12-27 Sound absorption body for speaker in automobile door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16329278A JPS5589901A (en) 1978-12-27 1978-12-27 Sound absorption body for speaker in automobile door

Publications (2)

Publication Number Publication Date
JPS5589901A true JPS5589901A (en) 1980-07-08
JPS579274B2 JPS579274B2 (en) 1982-02-20

Family

ID=15771044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16329278A Granted JPS5589901A (en) 1978-12-27 1978-12-27 Sound absorption body for speaker in automobile door

Country Status (1)

Country Link
JP (1) JPS5589901A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03258531A (en) * 1990-03-09 1991-11-18 Kokushin Sangyo Kk Composite polyurethane foam and manufacture thereof
US7353907B2 (en) * 2005-08-16 2008-04-08 Whitaker Scott R Speaker enclosure for a wall mounted speaker system
JP2015530952A (en) * 2012-08-14 2015-10-29 ボーズ・コーポレーションＢｏｓｅｃｏｒｐｏｒａｔｉｏｎ Structure with acoustic transducer volume

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03258531A (en) * 1990-03-09 1991-11-18 Kokushin Sangyo Kk Composite polyurethane foam and manufacture thereof
US7353907B2 (en) * 2005-08-16 2008-04-08 Whitaker Scott R Speaker enclosure for a wall mounted speaker system
JP2015530952A (en) * 2012-08-14 2015-10-29 ボーズ・コーポレーションＢｏｓｅｃｏｒｐｏｒａｔｉｏｎ Structure with acoustic transducer volume

Also Published As

Publication number Publication date
JPS579274B2 (en) 1982-02-20

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