JPS601648U - Vehicle interior muffled sound reduction device - Google Patents
Vehicle interior muffled sound reduction deviceInfo
- Publication number
- JPS601648U JPS601648U JP9323783U JP9323783U JPS601648U JP S601648 U JPS601648 U JP S601648U JP 9323783 U JP9323783 U JP 9323783U JP 9323783 U JP9323783 U JP 9323783U JP S601648 U JPS601648 U JP S601648U
- Authority
- JP
- Japan
- Prior art keywords
- vehicle interior
- reduction device
- muffled sound
- sound
- sound reduction
- 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
Links
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は従来のこもり音低減装置の構成を示す図、第2
図は4気筒エンジン車の中速こもり音の特性を示す特性
図、第3図は本考案の一実施例の構成を示す斜視図、第
4図は第3図の装置の断面図、第5図は第4図の部分拡
大図である。
1・・・車室、2−・・スジ−力、3・・・エンジン、
4・・・波形整形器、5・・・アンプ、6・・・制御回
路、7・・・ダツシュロア、8・・・ダッシュアッパ、
9・・・フロアパネル、10・・・ダツシュロアクロス
メンバ、11・・・スピーカ、12・・・スピーカカバ
ー。
第2図
第3図Figure 1 is a diagram showing the configuration of a conventional muffled sound reduction device;
The figure is a characteristic diagram showing the characteristics of medium-speed muffled noise in a four-cylinder engine vehicle, FIG. 3 is a perspective view showing the configuration of an embodiment of the present invention, FIG. 4 is a sectional view of the device shown in FIG. The figure is a partially enlarged view of FIG. 4. 1... Vehicle interior, 2-... Steering force, 3... Engine,
4...Waveform shaper, 5...Amplifier, 6...Control circuit, 7...Datsuschroa, 8...Dash upper,
9...Floor panel, 10...Dass lower cross member, 11...Speaker, 12...Speaker cover. Figure 2 Figure 3
Claims (1)
数が同じで逆位相の音波により打消すようにした車室内
こもり音低減装置において、ダツシュロアとダツシュロ
アクロスメンバにより閉空間を形成しこの空間を前記音
波を発生する発音体のエンクロージャとし、かつこのエ
ンクロージャの共振周波数を前記こもり音の周波数に設
定したことを特徴とする車室内こもり音低減装置。In a vehicle interior muffled sound reduction device that cancels the muffled sound generated in the vehicle interior of a car by using sound waves with the same sound pressure level and frequency but opposite phase, a closed space is formed by a darts lower and a darts lower cross member. is an enclosure for a sounding body that generates the sound wave, and the resonance frequency of the enclosure is set to the frequency of the muffled sound.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9323783U JPS601648U (en) | 1983-06-20 | 1983-06-20 | Vehicle interior muffled sound reduction device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9323783U JPS601648U (en) | 1983-06-20 | 1983-06-20 | Vehicle interior muffled sound reduction device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS601648U true JPS601648U (en) | 1985-01-08 |
Family
ID=30223945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9323783U Pending JPS601648U (en) | 1983-06-20 | 1983-06-20 | Vehicle interior muffled sound reduction device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS601648U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015185970A (en) * | 2014-03-24 | 2015-10-22 | マツダ株式会社 | Loudspeaker arrangement structure on front-passenger seat kick board |
JP2018055130A (en) * | 2017-12-20 | 2018-04-05 | パイオニア株式会社 | Acoustic conversion device for active noise control |
-
1983
- 1983-06-20 JP JP9323783U patent/JPS601648U/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015185970A (en) * | 2014-03-24 | 2015-10-22 | マツダ株式会社 | Loudspeaker arrangement structure on front-passenger seat kick board |
JP2018055130A (en) * | 2017-12-20 | 2018-04-05 | パイオニア株式会社 | Acoustic conversion device for active noise control |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS601648U (en) | Vehicle interior muffled sound reduction device | |
JPS60165217U (en) | Engine noise reduction device for cab-over type vehicles | |
JPS60151781U (en) | Vehicle sound absorption lid structure | |
JPS58172285U (en) | Acoustic vibration device with pine surge signal source | |
JPS59155249U (en) | Car speaker device | |
JPS58178090U (en) | Motorcycle power unit side cover device | |
JPS60155682U (en) | low noise vehicle | |
JPS5922587U (en) | car speaker | |
JPS6124895U (en) | Vibration isolation structure for automotive audio equipment | |
JPS6277985U (en) | ||
JPS6139660U (en) | Automotive insulator dash | |
JPS6141055U (en) | Ultrasonic sensor for vehicles | |
JPS60153086U (en) | Automotive acoustic vibration device | |
JPS61107287U (en) | ||
JPS5850044U (en) | Cavity resonance prevention device in automobiles | |
JPS6020439U (en) | bumper mount | |
JPS5932542U (en) | Dash panel silencer | |
JPS601646U (en) | Vehicle interior muffled sound reduction device | |
JPS60157557U (en) | Car speaker device | |
JPS60193787U (en) | Automotive sound field correction device | |
JPS6081145U (en) | Car with listening device | |
JPS5939248U (en) | Datsushi silencer | |
JPS6110733U (en) | Automotive pine surge device | |
JPS60155677U (en) | vehicle damping device | |
JPS60192590U (en) | Car speaker device |