JPS61132443A - Loudspeaker mounting structure for vehicle - Google Patents

Loudspeaker mounting structure for vehicle

Info

Publication number
JPS61132443A
JPS61132443A JP25454084A JP25454084A JPS61132443A JP S61132443 A JPS61132443 A JP S61132443A JP 25454084 A JP25454084 A JP 25454084A JP 25454084 A JP25454084 A JP 25454084A JP S61132443 A JPS61132443 A JP S61132443A
Authority
JP
Japan
Prior art keywords
speaker
sound
sound emitting
section
inner panel
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
JP25454084A
Other languages
Japanese (ja)
Inventor
Tadashi Okura
大蔵 正
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP25454084A priority Critical patent/JPS61132443A/en
Publication of JPS61132443A publication Critical patent/JPS61132443A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0217Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0019Side or rear panels
    • B60R2011/0021Doors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0043Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for integrated articles, i.e. not substantially protruding from the surrounding parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To prevent a sound from working inside and improve easiness to hear by providing the sound discharge sport of a loudspeaker in parallel to an inner panel and in close vicinity to a sound discharge section and partitioning the front space of the sound discharge port in a cavity section as the cavity space. CONSTITUTION:A part of an interior material 3 that covers the car room side of the inner panel 2 of a door 1 is protruded to the car room side and a box type cavity section 10 is formed. In addition, a sound discharge section 7 made of a number of permeation holes 6 is formed on the side wall of this protrusion section, that is a loudspeaker trim section 4. Besides, a partition body 16 is arranged in the cavity section 10 and consists of a cylindrical main body 16a a leg body 16b formed on the base end of the main body 16a secured with a screw 15 around the insertion hole 8 of the inner panel 2, a flange 16c to which a spacer 12 for preventing an annular sound leak formed on the tip of the main body 16a and adhering to the inner surface around the sound discharge section 7, and a number of loudspeakers mounting section 16d that is protruded nearer the tip of the internally circumferential surface of the main body 16a and on which a mounting hole 17 is formed.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は車両用スピーカ取付構造に関する。[Detailed description of the invention] Industrial applications The present invention relates to a vehicle speaker mounting structure.

従来の技術 従来、第3図に示すように自動車のドア1のインナパネ
ル2の車室側を緩う内装材3の前側の下部にスピーカト
リム部4を車室側に突出成形し、このスピーカトリム部
4内にスピーカ5を組み込んだものが知られている。こ
れは例えば「ニラサンサービス同報、第385号」(昭
和54年6月)第122頁に示されている。
2. Description of the Related Art Conventionally, as shown in FIG. 3, a speaker trim part 4 is formed to protrude toward the passenger compartment at the lower part of the front side of an interior material 3 that is loosely attached to the passenger compartment side of the inner panel 2 of an automobile door 1. A device in which a speaker 5 is built into the trim portion 4 is known. This is shown, for example, in "Nirasan Service Broadcast, No. 385" (June 1978), page 122.

ところで、前記スピーカ5の取付構造としては、84〜
7図に示すように各種の構造が考えられる。
By the way, as the mounting structure of the speaker 5, 84~
Various structures are possible as shown in Figure 7.

つまり、第4図に示したものはスピーカトリム部4の側
壁に多数の貫通孔6からなる放音部7を形成する一方、
この放音部7と対応するインナパネル2に挿通孔8を開
げて、この挿通孔8にスピーカ5の本体部分を差込み、
スピーカ5の放音口まわりに形成したフランジ5aを該
インナパネル2にねじ9固定してあり、スピーカ5の音
をスピーカトリム部4の内側に形成されたボックス形の
空洞部10と放音部7とを通って車室内に放射するよう
になっている。第5図に示したものは、基端に脚体11
aを有する筒状の隔壁体11を形成し、この隔壁体11
の脚体11aをドア1のインナパネル2の挿通孔8まわ
りにねじ9によりスビーカ5のフランジ5aと共締め結
合する一方、隔壁体11の先端に形成したフランジll
bとスピーカトリム部4における放音部7まわりの内面
との間に環状の音洩れ防止用スペーサ12をそれぞれに
密接させて介装して空洞部10内に放音空間13を仕切
っである。第6図に示すものはドア1のインナパネル2
に支持体14をねじ15固定し、この支持体14の先端
にスピーカ5の7ランジ5aをねじ9固定して、スピー
カ5の放音口をインナパネル2と略平行にかつ放音部7
に近接させて配置しである。第7図に示すものはドア1
のインナパネル2にねじ15固定した支持体14Aの先
端を放音部7側に延設し、その先端にスピーカ5の7ラ
ンジ5aをねじ9固定して、スピーカ5の放音口をスピ
ーカトリム部4の内面と略平行にかり放音部7に一層近
づけて配置しである。
That is, in the case shown in FIG. 4, a sound emitting section 7 consisting of a large number of through holes 6 is formed on the side wall of the speaker trim section 4, while
An insertion hole 8 is made in the inner panel 2 corresponding to the sound emitting part 7, and the main body of the speaker 5 is inserted into the insertion hole 8.
A flange 5a formed around the sound emitting port of the speaker 5 is fixed to the inner panel 2 with screws 9, and the sound of the speaker 5 is transmitted between the box-shaped cavity 10 formed inside the speaker trim part 4 and the sound emitting part. 7 and radiates into the vehicle interior. The one shown in FIG. 5 has a leg body 11 at the base end.
A cylindrical partition body 11 having a diameter is formed, and this partition body 11
The leg body 11a of the door 1 is tightened around the insertion hole 8 of the inner panel 2 of the door 1 with the flange 5a of the subveaker 5 by means of screws 9, while the flange ll formed at the tip of the partition body 11 is
A sound emitting space 13 is partitioned in the cavity 10 by interposing annular sound leakage prevention spacers 12 in close contact with each other between the sound emitting portion 7 and the inner surface of the speaker trim portion 4 around the sound emitting portion 7. What is shown in Figure 6 is the inner panel 2 of door 1.
The support body 14 is fixed with screws 15, and the 7 flange 5a of the speaker 5 is fixed with the screws 9 to the tip of this support body 14, so that the sound emitting port of the speaker 5 is approximately parallel to the inner panel 2 and the sound emitting part 7 is fixed.
It is placed close to. The one shown in Figure 7 is door 1.
The tip of the support 14A fixed to the inner panel 2 with screws 15 is extended to the sound emitting part 7 side, and the 7 langes 5a of the speaker 5 are fixed with the screws 9 to the tip of the support 14A, and the sound emitting port of the speaker 5 is connected to the speaker trim. It is arranged substantially parallel to the inner surface of the section 4 and closer to the sound emitting section 7.

発明が解決しようとする問題点 しかし、第4図のものにあってはスピーカ5の放音口が
インナパネル2側に配置されて放音部7から遠く離れて
しまうので、スピーカ5の音が空洞部10内にこもり易
い。第5図のものも、同様に放音空間13におけるスピ
ーカ5の放音口から放音部7までの距離が遠く、放音空
間13での減衰を受けてしまう恐れがある。第6図のも
のは、音の一部が矢印で示すように空洞部10における
スピーカ5の前面の空間から支持体14まわりの部分に
まわり込んで、音のこもり感を阻止できない。さらに第
7図のものにあっては、ドア1の開扉時の突起窓の減少
と、ドア1のその他のトリム部分とのバランスというデ
ザイン上からと、乗車時の足元のスペース確保という居
住性からとにより、スピーカトリム部4における放音部
7を有する側壁は下向きに斜めに形成されているのが一
般的であり、スピーカ5の放音口を前記側壁と略平行に
配置しであることから、音の放射方向が乗員の足元の方
向に向いてしまうので、聞きづら(なる恐れがある。
Problems to be Solved by the Invention However, in the one shown in FIG. 4, the sound emitting port of the speaker 5 is placed on the inner panel 2 side and is far away from the sound emitting part 7, so that the sound from the speaker 5 is It is easy to get trapped inside the cavity 10. Similarly, in the case of the one shown in FIG. 5, the distance from the sound emitting port of the speaker 5 to the sound emitting part 7 in the sound emitting space 13 is long, and there is a possibility that the sound emitting part 7 will be attenuated in the sound emitting space 13. In the case of the one shown in FIG. 6, part of the sound enters the space around the support 14 from the space in front of the speaker 5 in the cavity 10 as shown by the arrow, and it is not possible to prevent the sound from being muffled. Furthermore, in the case of the one shown in Fig. 7, there are design considerations such as reducing the protruding window when the door 1 is opened and the balance with other trim parts of the door 1, and improving comfort by securing leg space when getting on the vehicle. Generally, the side wall of the speaker trim part 4 having the sound emitting part 7 is formed diagonally downward, and the sound emitting port of the speaker 5 is arranged substantially parallel to the side wall. Because of this, the direction of sound emission is directed toward the occupant's feet, making it difficult to hear.

そこで、本発明は音がこもるのを阻止することができ、
聞き易さも向上することができる車両用スピーカ取付構
造を提供するものである。
Therefore, the present invention can prevent sound from being muffled,
An object of the present invention is to provide a vehicle speaker mounting structure that can also improve ease of listening.

問題点を解決するための手段 本発明にあっては、車体インナパネルの車室側を覆う内
装材の一部を車室側に突出成形した空洞部内に、放音空
間を仕切る隔壁体を車体インナパネルに固定支持しかつ
その先端を突出成形部の側壁に形成した放音部の周囲に
密接して配設すると共に、この隔壁体の内周面にスピー
カ取付部を形成してスピーカの放音口を前記放音部に近
接配置しである。
Means for Solving the Problems In the present invention, a partition wall body that partitions a sound emitting space is placed inside a cavity formed by projecting a part of the interior material covering the passenger compartment side of the vehicle body inner panel toward the passenger compartment side. It is fixedly supported on the inner panel and its tip is disposed closely around the sound emitting part formed on the side wall of the protruding molded part, and a speaker mounting part is formed on the inner peripheral surface of this partition body to emit the speaker. A sound port is arranged close to the sound emitting section.

実施例 以下、本発明の実施例を図面と共に従来の構造と同一部
分に同一符合を付して詳述する。
Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, with the same reference numerals given to the same parts as the conventional structure.

つまり第1,2図に示すように、車体インナパネルとし
てのドア1のインナパネル2の車室側を覆う内装材3の
一部を車室側に突出成形してボックス状の空洞部10を
形成し、その突出成形部、具体的にはスピーカ) IJ
ム部4の側壁に多数の貫通孔6からなる放音部7を形成
しである。16は前記空洞部10内に配置した隔壁体を
示し、筒状の本体16aと、この本体16aの基端に形
成されインナパネル2の挿通孔8まわりにねじ15固定
した脚体16bと、本体16aの先端に形成されスピー
カトリム部4における放音部7まわりの内面に密接する
ウレオンフォームからなる環状の音洩れ防止用スペーサ
12を接着したフランジ16cと、本体16Hにおける
内周面の先端寄りに突設されて取付孔17を有する複数
のスピーカ取付部16dとで構成されている。これらス
ピーカ取付部16dにスピーカ5のフランジ5aをねじ
9固定して取付けることにより、スービーカ5の放音口
をインナパネル2と略平行にかつ放音部7に近接させて
配置して、スピーカ5の放音口の前面の空間を空洞部1
0内に該放音口と放音部7とに連通する放音空間13A
として仕切っである。
That is, as shown in FIGS. 1 and 2, a box-shaped cavity 10 is formed by molding a part of the interior material 3 that covers the passenger compartment side of the inner panel 2 of the door 1 serving as the vehicle body inner panel to protrude toward the passenger compartment side. and its protruding molded part, specifically the speaker) IJ
A sound emitting part 7 consisting of a large number of through holes 6 is formed on the side wall of the sound emitting part 4. Reference numeral 16 indicates a partition body disposed in the cavity 10, which includes a cylindrical main body 16a, a leg body 16b formed at the base end of this main body 16a and fixed with screws 15 around the insertion hole 8 of the inner panel 2, and a main body. A flange 16c formed at the tip of the speaker trim portion 4 and having an annular sound leakage prevention spacer 12 bonded thereto made of ureon foam that is in close contact with the inner surface around the sound emitting portion 7 of the speaker trim portion 4, and a flange 16c close to the tip of the inner circumferential surface of the main body 16H. A plurality of speaker mounting portions 16d having mounting holes 17 projecting from the speaker mounting portions 16d are provided. By fixing the flange 5a of the speaker 5 to the speaker mounting portions 16d with screws 9, the sound emitting port of the speaker 5 is arranged approximately parallel to the inner panel 2 and close to the sound emitting portion 7, and the speaker 5 The space in front of the sound emitting port is hollow part 1.
0, a sound emitting space 13A communicating with the sound emitting port and the sound emitting part 7.
It is a partition.

前記複数のスピーカ取付部16dは隔壁体16の脚体1
6bに開げたねじ挿通孔18と側面から見て重ならない
ようになっている。
The plurality of speaker mounting portions 16d are attached to the legs 1 of the partition body 16.
It is designed so that it does not overlap with the screw insertion hole 18 opened in 6b when viewed from the side.

以上の実施例構造によれば、隔壁体16の脚体16bを
インナパネル20車室側にねじ15固定し、スピーカ5
の本体部分をスピーカ取付部16d間に挿入してスピー
カ5のフランジ5aをスピーカ取付部16dにねじ9固
定して取付けた後、隔壁体16まわりをスピーカトリム
部4で覆うようにして内装材3をドア1のインナパネル
2の車室側に装着することにより、スピーカ5の放音口
がインナパネル2と略平行にかっ放音部7に近接配置さ
れると共に、この放音口の前面の空間が放音空間13A
として空洞部10内に仕切られるので、スピーカ5の音
が空洞部1oにおける隔壁体16の外側に位置する部分
にまわり込んだり、乗員の足元に指向したりすることな
く、小空間となった放音空間13Aから放音部7を通っ
て車室内に速やかに放射される。また、スピーカ取付部
16dとねじ挿通孔18とが重ならないように周方向に
位置をずらされているので、隔壁体16をインナパネル
2にねじ15固定する際に、スピーカ取付部16dが前
記ねじ15の取付作業の邪魔にならず、隔壁体16を容
易かつ確実に取付けることができる。
According to the structure of the above embodiment, the legs 16b of the partition wall 16 are fixed to the interior panel 20 by the screws 15, and the speaker 5
After inserting the main body part of the speaker 5 between the speaker mounting parts 16d and fixing the flange 5a of the speaker 5 to the speaker mounting part 16d with screws 9, the interior material 3 is installed so that the partition wall 16 is covered with the speaker trim part 4. By attaching the speaker 5 to the passenger compartment side of the inner panel 2 of the door 1, the sound emitting port of the speaker 5 is arranged approximately parallel to the inner panel 2 and close to the sound emitting part 7, and the sound emitting port of the speaker 5 is placed close to the sound emitting part 7, and The space is sound emitting space 13A
Since the sound from the speaker 5 does not go around to the part of the cavity 1o located outside the bulkhead body 16 or is directed toward the feet of the passenger, the sound from the speaker 5 can be partitioned into the small space. The sound is quickly radiated from the sound space 13A through the sound emitting section 7 into the vehicle interior. Further, since the positions of the speaker mounting portion 16d and the screw insertion holes 18 are shifted in the circumferential direction so that they do not overlap, when the partition wall body 16 is fixed to the inner panel 2 with the screws 15, the speaker mounting portion 16d is The partition body 16 can be easily and reliably installed without interfering with the installation work of the partition wall 15.

なお、本発明はスピーカ5を車体のドア1以外の部分に
配設する場合にも適用できる。
Note that the present invention can also be applied to the case where the speaker 5 is arranged in a part other than the door 1 of the vehicle body.

発明の効果 以上のように本発明によれば、スピーカ音を突出成形部
の側壁の傾きに左右されることなく放音部に近接配置し
たスピーカの放音口から、空洞部における隔壁体の外側
の部分にまわり込んだり、乗員の足元に指向したりする
ことなく、その前面の放音空間と放音部とを通って車室
内に速やかに放射できるので、音のこもり感を阻止する
ことができ、聞き易さをも向上することができる実用上
火なる効果がある。
Effects of the Invention As described above, according to the present invention, the speaker sound is transmitted from the sound emitting port of the speaker disposed close to the sound emitting part without being influenced by the inclination of the side wall of the protruding molded part to the outside of the partition body in the cavity. The sound can be quickly radiated into the vehicle interior through the sound emitting space and the sound emitting part in front of the sound emitting part without going around the area or directing it to the feet of the passengers, thereby preventing the feeling of sound being muffled. This has the practical effect of improving listenability.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す断面図、第2図は同実
施例における隔壁体の車室内側から見た側面図、第3図
は従来のスピーカを組込まれたドアまわりの斜視図、第
4〜7図は従来のスピーカ取付構造の6異なる例を第3
図のA−A線に沿って示す断面図である。 1・・・ドア、2・・・インナパネル、3・・・内装材
、4・・・スピーカトリム部、5・・・スピーカ、7・
・・放音部、10・・・空洞部、13A・・・放音空間
、16・・・隔壁体、16d・・・スピーカ取付部。
Fig. 1 is a sectional view showing one embodiment of the present invention, Fig. 2 is a side view of the partition wall body in the same embodiment as seen from the inside of the vehicle, and Fig. 3 is a perspective view of the area around the door in which a conventional speaker is incorporated. Figures 4 to 7 show six different examples of conventional speaker mounting structures.
FIG. 3 is a cross-sectional view taken along line A-A in the figure. DESCRIPTION OF SYMBOLS 1... Door, 2... Inner panel, 3... Interior material, 4... Speaker trim part, 5... Speaker, 7...
...Sound emitting part, 10...Cavity part, 13A...Sound emitting space, 16...Partition body, 16d...Speaker mounting part.

Claims (1)

【特許請求の範囲】[Claims] 車体インナパネルの車室側を覆う内装材の一部を車室側
に突出成形してボックス状の空洞部を形成し、その突出
成形部の側壁に多数の貫通孔からなる放音部を形成する
一方、前記空洞部内に放音空間を仕切る隔壁体を車体イ
ンナパネルに固定支持しかつその先端を前記放音部の周
囲に密接して配設すると共に、この隔壁体の内周面にス
ピーカ取付部を形成してスピーカの放音口を前記放音部
に近接配置したことを特徴とする車両用スピーカ取付構
造。
A part of the interior material that covers the passenger compartment side of the vehicle body inner panel is molded to protrude toward the passenger compartment side to form a box-shaped cavity, and a sound emitting part consisting of a large number of through holes is formed on the side wall of the protruding molded part. On the other hand, a partition wall that partitions a sound emitting space within the cavity is fixedly supported on the inner panel of the vehicle body, and its tip is disposed closely around the sound emitting section, and a speaker is installed on the inner peripheral surface of the partition wall. 1. A vehicle speaker mounting structure, characterized in that a mounting portion is formed and a sound emitting port of the speaker is disposed close to the sound emitting portion.
JP25454084A 1984-12-01 1984-12-01 Loudspeaker mounting structure for vehicle Pending JPS61132443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25454084A JPS61132443A (en) 1984-12-01 1984-12-01 Loudspeaker mounting structure for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25454084A JPS61132443A (en) 1984-12-01 1984-12-01 Loudspeaker mounting structure for vehicle

Publications (1)

Publication Number Publication Date
JPS61132443A true JPS61132443A (en) 1986-06-19

Family

ID=17266458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25454084A Pending JPS61132443A (en) 1984-12-01 1984-12-01 Loudspeaker mounting structure for vehicle

Country Status (1)

Country Link
JP (1) JPS61132443A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6385430U (en) * 1986-11-21 1988-06-03
JPH063746U (en) * 1991-08-09 1994-01-18 三菱自動車工業株式会社 Speaker mounting structure
FR2762263A1 (en) * 1997-04-18 1998-10-23 Rockwell Lvs Loudspeaker sound enhancement chamber for motor vehicle
EP1705067A1 (en) * 2005-03-24 2006-09-27 Renault s.a.s. Space holder for the mounting of a loud speaker on a vehicle door
US8649548B1 (en) 2012-08-14 2014-02-11 Bose Corporation Structure having acoustic transducer volume
FR3083168A1 (en) * 2018-06-28 2020-01-03 Psa Automobiles Sa SIDE DOOR OF A CASE VEHICLE WITH INTEGRATED ACOUSTIC CHAMBER FOR INSULATED LOUDSPEAKER

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6385430U (en) * 1986-11-21 1988-06-03
JPH063746U (en) * 1991-08-09 1994-01-18 三菱自動車工業株式会社 Speaker mounting structure
FR2762263A1 (en) * 1997-04-18 1998-10-23 Rockwell Lvs Loudspeaker sound enhancement chamber for motor vehicle
US6226927B1 (en) 1997-04-18 2001-05-08 Meritor Light Vehicle Systems-France Automobile vehicle door provided with a multicomponent module a part of which forms an acoustic cavity
EP1705067A1 (en) * 2005-03-24 2006-09-27 Renault s.a.s. Space holder for the mounting of a loud speaker on a vehicle door
FR2883532A1 (en) * 2005-03-24 2006-09-29 Renault Sas SPACER FOR ATTACHING A SPEAKER INSIDE A MOTOR VEHICLE DOOR
US8649548B1 (en) 2012-08-14 2014-02-11 Bose Corporation Structure having acoustic transducer volume
WO2014028172A1 (en) * 2012-08-14 2014-02-20 Bose Corporation Structure having acoustic transducer volume
FR3083168A1 (en) * 2018-06-28 2020-01-03 Psa Automobiles Sa SIDE DOOR OF A CASE VEHICLE WITH INTEGRATED ACOUSTIC CHAMBER FOR INSULATED LOUDSPEAKER

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