JPS63235141A - Loud speaker for mounting on car - Google Patents
Loud speaker for mounting on carInfo
- Publication number
- JPS63235141A JPS63235141A JP7063787A JP7063787A JPS63235141A JP S63235141 A JPS63235141 A JP S63235141A JP 7063787 A JP7063787 A JP 7063787A JP 7063787 A JP7063787 A JP 7063787A JP S63235141 A JPS63235141 A JP S63235141A
- Authority
- JP
- Japan
- Prior art keywords
- acoustic
- vehicle
- sound
- driver unit
- rear seat
- 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
- 238000013459 approach Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000000644 propagated effect Effects 0.000 abstract 1
- 230000011514 reflex Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0217—Arrangements 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0012—Seats or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0019—Side or rear panels
- B60R2011/0021—Doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/0043—Arrangements 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)
- Details Of Audible-Bandwidth Transducers (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Stereophonic Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は車室内に設ける車載用スピーカに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vehicle-mounted speaker installed in a vehicle interior.
従来の技術
近年、車載用のコンパクトディスクプレーヤや大出力の
パワーアンプが商品化され、車室内の音楽信号の質が大
幅に向上し、これを再生する車載用スピーカの性能向上
に対する要望は非常に強いものがある。この様な状況下
で車室内の音響再生に置ける大きな課題は、低音域の再
生でちゃ従来の低音拡大の技術として、ドア部に専用の
バスレフ型キャビネットを配置した車載用スピーカがあ
る。Conventional technology In recent years, in-vehicle compact disc players and high-output power amplifiers have been commercialized, and the quality of music signals in the car interior has improved significantly, and there is a strong demand for improved performance of the in-vehicle speakers that play these signals. There is something strong. Under these circumstances, a major issue in reproducing sound inside a vehicle is the reproduction of bass frequencies.The conventional technology for bass amplification is vehicle-mounted speakers that have a dedicated bass reflex cabinet placed in the door.
以下、図面を参照しながら、上述した従来の車載用スピ
ーカについて説明を行う。Hereinafter, the above-mentioned conventional vehicle-mounted speaker will be explained with reference to the drawings.
第６図は従来の車載用スピーカの取シ付は状態を示すも
のである。第６図において、１は車のドア、２はドア１
に取シ付けたバスレフ型のスピーカキャビネット、３は
キャビネット２に取シ付けたスピーカユニット、４はキ
ャビネット２に設けたバスレフポートでその開口はスピ
ーカユニット３と同−取シ付は面にある。FIG. 6 shows the mounting state of a conventional vehicle-mounted speaker. In Figure 6, 1 is the car door, 2 is the door 1
3 is a speaker unit attached to the cabinet 2; 4 is a bass reflex port provided in the cabinet 2; its opening is the same as that of the speaker unit 3; the mounting surface is on the same side.
以上のように構成された、車載用スピーカについて、以
下その動作について説明する。The operation of the vehicle-mounted speaker configured as described above will be described below.
アンプによシ増幅された音楽信号はキャビネット２に取
り付けられたスピーカユニット３に入力される。キャビ
ネット２は、バスレフ型であり、そのバスレフポート４
の開口はスピーカユニット３の取り付は面と同一であっ
て、低音域はバスレフポート４の音響共振によって拡大
される。The music signal amplified by the amplifier is input to a speaker unit 3 attached to a cabinet 2. Cabinet 2 is a bass reflex type, and its bass reflex port 4
The opening is the same as the surface on which the speaker unit 3 is attached, and the bass range is expanded by the acoustic resonance of the bass reflex port 4.
発明が解決しようとする問題点
しかしながら、上記のような構成ではキャビネットとし
て取シ得る容積は限定され、バスレフポート４の共振周
波数は高くなシ、低音域の再生は満足できるものではな
かった。Problems to be Solved by the Invention However, with the above configuration, the volume that can be taken up as a cabinet is limited, the resonance frequency of the bass reflex port 4 is not high, and the reproduction of bass frequencies is not satisfactory.
本発明は上記問題点に鑑み、最近の音楽信号の大幅な質
の向上に対応した低音域の十分な再生が可能な車載用ス
ピーカを提供するものである。SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides an in-vehicle speaker capable of sufficiently reproducing bass frequencies in response to the recent significant improvement in the quality of music signals.
問題点を解決するための手段
この目的を達成するために本発明の車載用スピーカは、
車体を構成する車の構造体で長さの等しい並列な２つの
音響管を構成し、音響管の入口にドライバユニットを備
え音響管の開口を後部シートに配置する構成となってい
る。Means for Solving the Problems To achieve this objective, the in-vehicle speaker of the present invention has the following features:
Two sound tubes of equal length are arranged parallel to each other in the structure of the vehicle, and a driver unit is provided at the entrance of the sound tube, and the opening of the sound tube is located in the rear seat.
作 用
この構成によって、予め車体の一部が音響管を形成し、
音響的に必要な長さと断面積が確保され、その入口にド
ライバユニットを設け、開口を後部シートに配置するな
らば、低音域において音響管の共振による大幅な音響出
力の増大が可能である。Effect With this configuration, a part of the car body forms an acoustic tube in advance,
If the acoustically necessary length and cross-sectional area are secured, a driver unit is provided at the entrance, and the opening is placed in the rear seat, it is possible to significantly increase the acoustic output in the low frequency range due to acoustic tube resonance.
実施例
以下本発明の一実施例について、図面を参照しながら説
明する。EXAMPLE An example of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例における車載用スピーカの構
造を示すものである。第１図において、６はリアパーセ
ル、６は後部シート、７，８は後部ドア、９，１ｏは前
部ドア、１１．１２は前部シート、１３．１４はカール
サイド、１５．１６はフレーム、１７，１８はドライバ
ユニット、１９ 、２０は前部ドア９，１ｏからフレー
ム１５゜１６の側面、後部シート６に予め一体成形によ
り構成した長さの等しい並列な二つの音響管、２１゜２
２は音響管１９ 、２０の開口、４１は音響管のフレー
ムと前部ドアとの接合部である。FIG. 1 shows the structure of a vehicle-mounted speaker according to an embodiment of the present invention. In Figure 1, 6 is the rear parcel, 6 is the rear seat, 7 and 8 are the rear doors, 9 and 1o are the front doors, 11.12 is the front seat, 13.14 is the curl side, and 15.16 is the frame. , 17 and 18 are driver units; 19 and 20 are two parallel acoustic tubes of equal length that are integrally molded in advance from the front doors 9 and 1o to the sides of the frames 15 and 16 and to the rear seat 6; 21 and 20;
Reference numeral 2 indicates the openings of the acoustic tubes 19 and 20, and 41 indicates a joint between the frame of the acoustic tube and the front door.
以上のように構成された車載用スピーカについて、以下
その動作について説明する。左右両チャンネルの音楽信
号（Ｌ＋Ｒ又はり、Ｒ独立に）は前部ドア９，１ｏに取
シ付けたドライバユニット１７．１８に入力される。ド
ライバユニット１７゜１８の背面には前部ドア９，１ｏ
からフレーム１５゜１６の側面、後部シート６に予め一
体成形された音響管１９ 、２０が配置され、その開口
２１．２２が後部シート６に設けられているため、ドラ
イバユニット１７，１８の背面の音は音響管１９ 、２
０中を伝搬して、ドライバユニット１７．１８の前面か
らの音とともに開口２１，２２よシ車室内に放射される
。ドライバユニット１７．１８の前面と背面の音の位相
は逆転しているが、音響管１９゜２ｏの長さを低域限界
周波数の波長の棒となるよう設定するならば、音響管１
９ 、２０はこの周波数で共振し、またドライバユニッ
ト１７．１８の前面と背面の音は同位相となり、車室内
で足し合わされる。The operation of the vehicle-mounted speaker configured as described above will be described below. The music signals of both the left and right channels (L+R or R and R independently) are input to driver units 17 and 18 attached to the front doors 9 and 1o. There are front doors 9, 1o on the back of the driver unit 17゜18.
Acoustic tubes 19 and 20, which are integrally molded in advance on the sides of the frames 15 and 16 and on the rear seat 6, are arranged, and the openings 21 and 22 of the acoustic tubes are provided on the rear seat 6, so that the rear seats of the driver units 17 and 18 are Sound is sound tube 19,2
The sound propagates through the driver unit 17, 18 and is radiated into the vehicle interior through the openings 21 and 22 along with the sound from the front of the driver unit 17, 18. The phases of the sound from the front and rear sides of the driver unit 17 and 18 are reversed, but if the length of the acoustic tube 19°2o is set to be the wavelength bar of the low-frequency limit frequency, the acoustic tube 1
9 and 20 resonate at this frequency, and the sounds from the front and rear sides of the driver units 17 and 18 are in phase and added together inside the vehicle.
以上のように本実施例によれば、ドライバユニッ）１７
．１８の背面に音響管１９ 、２０を配置し音響管１９
、２０の共振とその長さによる位相反転効果を利用し
て、音響出力の大幅な増大を図るものである。第２図は
本実施例と従来のものについて、車室内での音圧スペク
トラム特性を比較している。音源はピンクノイズであシ
、２０Ｈｚから２０ ＫＨｚの帯域で見オクターブ毎に
スペクトラム分析をおこなった結果である。第２図の結
果を得た実施例では、ドライバユニ、） １７．１８は
１４ｃ１ｎ口径のダイナミックスピーカ、音響管１９゜
２ｏは直径１０ｍ、全長３ｍのストレートの管であった
。また、従来例についてはキャビネット容積２リツトル
のバスレフ型、スピーカユニットハ１２ｃｍ口径であシ
、前部両ドアに搭載した。同図の結果よシ、１ｏｏＨｚ
以下の低音域において１５ｄＢ以上と大幅な音圧レベル
の向上が図られている。As described above, according to this embodiment, the driver unit) 17
．． Acoustic tubes 19 and 20 are arranged on the back side of acoustic tube 19.
, 20 and the phase inversion effect due to its length, the acoustic output is significantly increased. FIG. 2 compares the sound pressure spectrum characteristics in the vehicle interior between this embodiment and the conventional one. The sound source was pink noise, and the spectrum analysis was performed for each octave in the band from 20 Hz to 20 KHz. In the example in which the results shown in FIG. 2 were obtained, driver unit 17.18 was a dynamic speaker with a diameter of 14c1n, and acoustic tube 19°2o was a straight tube with a diameter of 10 m and a total length of 3 m. In addition, the conventional example has a bass reflex type speaker unit with a cabinet volume of 2 liters, a speaker unit with a diameter of 12 cm, and is mounted on both front doors. The result of the same figure is 1ooHz.
The sound pressure level has been significantly improved by 15 dB or more in the bass range below.
以下、本発明の第２の実施例について、図面を参照しな
がら説明する。A second embodiment of the present invention will be described below with reference to the drawings.
第３図は本発明の第２の実施例における車載用スピーカ
の構造を示すものである。第３図において、第１図の実
施例と同一構成要素には同一番号を付した。第３図に於
て、１７．１８はドライバユニット、１９ａ、２０ａは
前部ドア９，１０、後部ドア７．８からフレーム１５．
１６の側面、後部シート６に予め一体成形によシ構成し
た音響管、２１．２２は後部シート６に設けた音響管１
９ａ、２０ａの開口である。以上のように構成された車
載用スピーカの構造について、以下その動作について説
明する。FIG. 3 shows the structure of a vehicle-mounted speaker according to a second embodiment of the present invention. In FIG. 3, the same components as those in the embodiment of FIG. 1 are given the same numbers. In FIG. 3, 17.18 is the driver unit, 19a and 20a are the front doors 9 and 10, and the frame 15.1 from the rear door 7.8.
On the side of 16, there is an acoustic tube formed integrally with the rear seat 6 in advance, and 21 and 22 are acoustic tubes 1 provided on the rear seat 6.
These are openings 9a and 20a. The operation of the structure of the vehicle-mounted speaker configured as described above will be described below.
左右両チャンネルの音楽信号（Ｌ＋Ｒ、又はり。Music signals for both left and right channels (L+R, or the like).
Ｒ独立に）はカールサイド１３．１４に取シ付けたドラ
イバユニット１７．１８に入力される。ドライバユニノ
）１７．１８の背面には前部ドア９゜１０、後部ドア７
．８からフレーム１５．１６の側面、後部シート６に予
め一体成形された並列な音響管１９ａ、２０ａが配置さ
れ、その開口２１゜２２が後部シート６に設けられてい
るため、ドライバユニッ）１７．１８の背面の音は音響
管１９ａ。R (independently) is input to a driver unit 17.18 attached to the curl side 13.14. Driver Unino) 17. On the back of the 18, there are front doors 9゜10 and rear doors 7.
．． Parallel acoustic tubes 19a and 20a, which are integrally molded in advance on the sides of the frames 15 and 16 from 8 to the rear seat 6, are arranged, and their openings 21 and 22 are provided in the rear seat 6, so that the driver unit) 17. The sound on the back of 18 is the acoustic tube 19a.
２０ ａ中を伝搬して、ドライバユニット１７．１８の
前面か身の音とともに開口２１，２２よシ車室内に放射
される。ドライバユニット１７．１８の前面と背面の音
の位相は逆転しているが、音響管１９ａ、２０ａの長さ
を低域限界周波数の波長の棒となるよう設定するならば
、音響管１９ａ。The sound propagates through the driver unit 17, 18 and is radiated into the vehicle interior through the openings 21 and 22 along with the sound of the driver's body. Although the phases of the sound at the front and rear sides of the driver units 17 and 18 are reversed, if the lengths of the acoustic tubes 19a and 20a are set to correspond to the wavelength of the low limit frequency, the acoustic tube 19a.
２０ａはこの周波数で共振し、またドライバユニッ）１
７．１８の前面と背面の音は同位相となシ車室内で足し
合わされる。20a resonates at this frequency, and the driver unit) 1
The sounds from the front and rear of the 7.18 are in phase and are added together inside the vehicle.
以下、本発明の第３の実施例について、図面を参照しな
がら説明する。A third embodiment of the present invention will be described below with reference to the drawings.
第４図は本発明の第３の実施例における車載用スピーカ
の構造を示すものである。第４図において、第１図の実
施例と同一構成要素には同一番号を付した。第４図に於
て、１７．１８はドライバユニット、１９ ｂ 、 ２
０ ｂハＩ）アバ−セル５が微部シート６に予め一体成
形にょシ構成した音響管、２１．２２は後部シート６に
設けた音響管１９ｂ。FIG. 4 shows the structure of a vehicle-mounted speaker according to a third embodiment of the present invention. In FIG. 4, the same components as those in the embodiment of FIG. 1 are given the same numbers. In Fig. 4, 17.18 is a driver unit, 19b, 2
0bcI) The acoustic tube 21.22 is an acoustic tube 19b provided on the rear seat 6.
２０ｂの開口である。20b is the opening.
以上のように構成された車載用スピーカについて、以下
その動作について説明する。左右両チャンネルの音楽信
号（Ｌ十Ｒ，又はり、Ｒ独立に）はリアパーセル５に取
り付けたドライバユニット１７．１８に入力される。ド
ライバユニット１７゜１８の背面には、リアパーセル５
から、後部シート６に予め一体成形された音響管１９ｂ
、 ２０ｂが配置され、その開口２１．２２が後部シ
ート６に設けられているため、ドライバユニット１７゜
１８の背面の音は音響管１９ｂ、２ｏｂの中を伝搬して
、ドライバユニツ）１７．１８の前面からの音とともに
開口２１．２２よシ車室内に放射される。ドライバユニ
ッ）１７，１８の前面と背面の音の位相は逆転している
が、音響管１９ｂ。The operation of the vehicle-mounted speaker configured as described above will be described below. Music signals of both left and right channels (L and R, or R and R independently) are input to driver units 17 and 18 attached to the rear parcel 5. On the back of the driver unit 17゜18, there is a rear parcel 5.
, an acoustic tube 19b integrally molded in advance on the rear seat 6.
, 20b are arranged and the openings 21.22 thereof are provided in the rear seat 6, so the sound from the back of the driver unit 17. The sound is radiated into the vehicle interior through the openings 21 and 22 along with the sound from the front of the vehicle. Although the phases of the sound on the front and back sides of the driver units (driver units) 17 and 18 are reversed, the sound tube 19b.
２ｏｂの長さを低域限界周波数の波長の％となるよう設
定するならば、この周波数で共振し、またドライバユニ
ット１７．１８の前面と背面の音は同位相となり車室内
で足し合わされる。If the length of 2ob is set to be % of the wavelength of the low limit frequency, it will resonate at this frequency, and the sounds from the front and back of the driver units 17 and 18 will be in phase and will be added together inside the vehicle.
以上のように第２．第３の実施例によれば、ドライパユ
ニッ）１７．１８の背面に音響管１９ａ。As mentioned above, the second. According to the third embodiment, an acoustic tube 19a is provided on the back side of the dryer unit (17, 18).
２０ａ 、 １９ｂ 、 ２０ｂ ヲ装置Ｌ１．＝ｏ共
振、１！： そ。20a, 19b, 20b device L1. = o resonance, 1! : So.
長さによる位相反転効果を利用して、音響出力の大幅な
増大を図るもので、その動作は第１の実施例とほぼ同じ
である。This is intended to significantly increase the acoustic output by utilizing the phase inversion effect due to the length, and its operation is almost the same as the first embodiment.
なお、上記各実施例では各音響管の断面形状について記
載していないが、第５図に示すように、（ａ）円形、（
ｂ）角型、（Ｃ）多角形、（ｄ）不整形の何れでも良く
その断面積が音響管として必要な断面積とひとしければ
任意の形状とすることができるものである。Although the cross-sectional shape of each acoustic tube is not described in each of the above embodiments, as shown in FIG.
(b) square shape, (C) polygonal shape, (d) irregular shape, and any shape can be used as long as the cross-sectional area is equal to the cross-sectional area required for the acoustic tube.
また、上記各実施例では各音響管はその断面積が全長一
定であるストレート管であったが、音響管の開口に行く
に伴い断面積が大きくなるホーン状とするならば、音響
管中を伝搬する音と車室内空間とのインピーダンス整合
が良好となシ、音圧特性の乱れが少なくなる。In addition, in each of the above embodiments, each acoustic tube was a straight tube with a constant cross-sectional area over its entire length, but if it were to be shaped like a horn, with the cross-sectional area increasing as it approaches the opening of the acoustic tube, the inside of the acoustic tube could be Good impedance matching between the propagating sound and the interior space of the vehicle reduces disturbances in sound pressure characteristics.
発明の効果
本発明は、車の構造体であるドア或はフレームの成形に
際して長さの等しい並列な２つの音響管を構成せしめ、
その片側にドライバユニットを設け、開口を後部シート
に配置することによシ、低音域において音響管の共振に
よる大幅な音響出力の増大を実現できる。Effects of the Invention The present invention constructs two parallel acoustic tubes of equal length when molding a door or frame, which is a structural body of a car.
By providing a driver unit on one side and locating the opening in the rear seat, it is possible to achieve a significant increase in acoustic output in the low frequency range due to the resonance of the acoustic tube.
また、音響管の断面積を開口に行くに従い増加させたホ
ーン形状とすることにより、ホーン効果による音響出力
の増大を図れるもので、予め車体に音響管が構成され、
音響管として必要な長さと断面積が確保されているため
、従来のように低音限界がキャビネット容積で規制され
ることなく、最近の音楽信号の大幅な質の向上に対応し
た低音域の十分な再生が可能な車載用スピーカを実現で
きるものである。In addition, by forming the acoustic tube into a horn shape in which the cross-sectional area increases toward the opening, it is possible to increase the acoustic output due to the horn effect.
Because the length and cross-sectional area necessary for an acoustic tube are secured, the bass limit is not limited by the cabinet volume as in the past, and the bass range is sufficient to accommodate the significant improvement in the quality of recent music signals. This makes it possible to realize a car-mounted speaker that can reproduce sound.
第１図は本発明の一実施例における車載用スピーカの構
造図、第２図は本発明と従来の車載用スピーカの車室内
における音圧スペクトラム特性の比較図、第３図、第４
図は本発明の第２．第３の実施例における車載用スピー
カの構造図、第６図は本発明の各音響管の各種形状を示
す断面図、第６図は従来の車載用スピーカの構造図であ
る。
６・・川・リアパーセル、６・・団・後部シート、７゜
８・・・・・・後部ドア、９，１ｏ・・・用前部ドア、
１１゜１２・・・・・・前部シー）、１３，１４・・・
・・・カールサイ）”、１５，１６・・・・・・フレー
ム、１７，１８・・・・・・ドライバユニット、１９，
１９ａ 、１ ｓｂ、２０゜２０ａ 、２０ｂ・・・・
・・音響管、２１．２２・旧・・音響管の開口、４１・
・・・・・音響管のフレームと前部ドアとの接合部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第２
図
□本友本セ燗
一−−−−−□）
ｙ否】 シ４ξ５く ぐＨｚノFIG. 1 is a structural diagram of a vehicle-mounted speaker according to an embodiment of the present invention, FIG. 2 is a comparison diagram of sound pressure spectrum characteristics in a vehicle interior of a vehicle-mounted speaker of the present invention and a conventional vehicle-mounted speaker, and FIGS.
The figure is part 2 of the present invention. FIG. 6 is a structural diagram of a vehicle-mounted speaker according to the third embodiment, FIG. 6 is a cross-sectional view showing various shapes of sound tubes of the present invention, and FIG. 6 is a structural diagram of a conventional vehicle-mounted speaker. 6...river/rear parcel, 6...group/rear seat, 7゜8...rear door, 9,1o...front door,
11゜12...front sea), 13,14...
... Carl Sai)", 15, 16 ... Frame, 17, 18 ... Driver unit, 19,
19a, 1 sb, 20°20a, 20b...
...Acoustic tube, 21.22.Old...Acoustic tube opening, 41.
...The joint between the acoustic tube frame and the front door. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure □ Hontomo Honsekanichi------□）
Claims (6)
構成し、前記音響管の入口にドライバユニットを備え、
前記音響管の開口が後部シートにあることを特徴とする
車載用スピーカ。(1) Two parallel acoustic tubes of equal length are configured in the structure of the car, and a driver unit is provided at the entrance of the acoustic tube,
A vehicle-mounted speaker characterized in that the opening of the acoustic tube is located in a rear seat.
とする特許請求の範囲第１項記載の車載用スピーカ。(2) The vehicle-mounted speaker according to claim 1, wherein the driver unit is provided in a front door.
特徴とする特許請求の範囲第１項記載の車載用スピーカ
。(3) The vehicle-mounted speaker according to claim 1, wherein the driver unit is provided in a rear parcel.
特徴とする特許請求の範囲第１項記載の車載用スピーカ
。(4) The vehicle-mounted speaker according to claim 1, wherein the driver unit is provided on the curl side.
なることを特徴とする特許請求の範囲第１項記載の車載
用スピーカ。(5) The vehicle-mounted speaker according to claim 1, wherein the cross-sectional area of the acoustic tube increases as it approaches the opening.
許請求の範囲第１項記載の車載用スピーカ。(6) The vehicle-mounted speaker according to claim 1, wherein the sound tube has a constant cross-sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7063787A JPS63235141A (en) | 1987-03-25 | 1987-03-25 | Loud speaker for mounting on car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7063787A JPS63235141A (en) | 1987-03-25 | 1987-03-25 | Loud speaker for mounting on car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63235141A true JPS63235141A (en) | 1988-09-30 |
Family
ID=13437357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7063787A Pending JPS63235141A (en) | 1987-03-25 | 1987-03-25 | Loud speaker for mounting on car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63235141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457487A2 (en) * | 1990-05-18 | 1991-11-21 | Matsushita Electric Industrial Co., Ltd. | Horn speaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5660191A (en) * | 1979-10-22 | 1981-05-23 | Nissan Motor Co Ltd | Acoustic device for car |
| JPS5823484B2 (en) * | 1974-03-18 | 1983-05-16 | 株式会社井上ジャパックス研究所 | Heinetsu Ryouhatsuden Sochi |
-
1987
- 1987-03-25 JP JP7063787A patent/JPS63235141A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5823484B2 (en) * | 1974-03-18 | 1983-05-16 | 株式会社井上ジャパックス研究所 | Heinetsu Ryouhatsuden Sochi |
| JPS5660191A (en) * | 1979-10-22 | 1981-05-23 | Nissan Motor Co Ltd | Acoustic device for car |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0457487A2 (en) * | 1990-05-18 | 1991-11-21 | Matsushita Electric Industrial Co., Ltd. | Horn speaker |
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