JP2018095089A - Duct structure for bus - Google Patents

Duct structure for bus Download PDF

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Publication number
JP2018095089A
JP2018095089A JP2016242012A JP2016242012A JP2018095089A JP 2018095089 A JP2018095089 A JP 2018095089A JP 2016242012 A JP2016242012 A JP 2016242012A JP 2016242012 A JP2016242012 A JP 2016242012A JP 2018095089 A JP2018095089 A JP 2018095089A
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duct
ceiling
bus
width direction
cool air
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武志 設樂
Takeshi Shitara
武志 設樂
高橋　純
Jun Takahashi
純 高橋
剛 大森
Takeshi Omori
剛 大森
大樹 林
Hiroki Hayashi
大樹 林
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Hino Motors Ltd
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Hino Motors Ltd
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  • Air-Conditioning For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a duct structure for bus capable of securing an air flow of cool air for a passenger without excess and shortage, and capable of increasing an air flow to a driver seat compared with that in prior arts.SOLUTION: A duct structure for bus comprises ceiling ducts 4 extending in a cross direction of a bus in both sides of a vehicle width direction of a ceiling part 2 of a bus, and cool air from a cooler unit 3 mounted on an upper surface of the ceiling part 2 is distributed to a cabin through the ceiling ducts 4. A diaphragm part 10 for making a channel of the cool air narrow is provided on a middle part closer to an outside of the vehicle width direction of the ceiling duct 4, a main duct 11 where a main flow of the cool air from the cooler unit 3 is partitioned to inside of the vehicle width direction by the diaphragm part 10, and a sub duct 12 for distributing a branch flow of the cool air guided through the diaphragm part 10 from the main duct 11 to a seat blowout port 5 on a window side, is partitioned to outside of the vehicle width direction.SELECTED DRAWING: Figure 1

Description

本発明は、バス用ダクト構造に関するものである。   The present invention relates to a bus duct structure.

図４は路線バス等として利用されている一般的なバスの一例を示すもので、ここに図示しているバス１では、車体の天井部２上面の前後方向中央付近にクーラユニット３が搭載されており、該クーラユニット３から送り出される冷気が、乗客用の各座席や立席、更には、運転席へと導かれるようになっている。   FIG. 4 shows an example of a general bus used as a route bus or the like. In the bus 1 shown here, the cooler unit 3 is mounted near the center in the front-rear direction of the top surface of the ceiling 2 of the vehicle body. The cool air sent out from the cooler unit 3 is guided to passenger seats and standing seats, and further to the driver's seat.

ここで、図５に車室側から見上げた天井部２のダクト構造について示すと、前記天井部２の車幅方向両側に天井ダクト４が形成されており、該天井ダクト４は前記天井部２の前後方向に延在して窓際の座席吹出口５から各座席に向け冷気を吹き出し且つ前記座席吹出口５より内側の立席吹出口６から立席に向け冷気を吹き出し得るようにしてある。   Here, FIG. 5 shows the duct structure of the ceiling portion 2 as viewed from the passenger compartment side. Ceiling ducts 4 are formed on both sides of the ceiling portion 2 in the vehicle width direction, and the ceiling duct 4 is connected to the ceiling portion 2. The cool air is blown out from the seat outlet 5 at the window toward each seat, and the cool air can be blown out from the standing outlet 6 inside the seat outlet 5 toward the standing seat.

例えば、図５のＡ部分における天井ダクト４の詳細な構造について図６に示すと、この天井ダクト４は、室外側パネル４ａと室内側パネル４ｂとにより、車幅方向外側（図６中の左側）に向かうにつれ徐々に拡張する楔形の流路断面を成すように構成されており、クーラユニット３（図４参照）から導風口７に送り込まれた冷気が天井ダクト４の長手方向に導かれるようになっている。尚、図６に示している天井ダクト４は、図示しない天井パネルにより上方から断熱材等を挟んで被覆されるようになっている。   For example, FIG. 6 shows a detailed structure of the ceiling duct 4 in the portion A of FIG. 5. This ceiling duct 4 is formed by the outdoor panel 4 a and the indoor panel 4 b on the outside in the vehicle width direction (the left side in FIG. 6). ) Is formed so as to form a wedge-shaped channel cross section that gradually expands toward the head), so that the cold air sent from the cooler unit 3 (see FIG. 4) to the air inlet 7 is guided in the longitudinal direction of the ceiling duct 4. It has become. The ceiling duct 4 shown in FIG. 6 is covered with a heat insulating material or the like from above by a ceiling panel (not shown).

ここで、前述の如きバス用ダクト構造に関連する先行技術文献情報としては下記の特許文献１、２等がある。   Here, as the prior art document information related to the bus duct structure as described above, there are the following Patent Documents 1 and 2 and the like.

特開平５−２２９３３２号公報JP-A-5-229332 特開平８−１３２８４９号公報JP-A-8-132849

しかしながら、斯かる従来構造においては、天井ダクト４の車室側に臨む室内側パネル４ｂの内周面が乗客へ向けた広告エリアとして凹凸の無い一様な曲面を成すように確保される必要があり、これにより前記天井ダクト４が全長に亘り一定断面で形成されることになるため、クーラユニット３（図４参照）から遠く離れた運転席に至るまでに途中の座席吹出口５や立席吹出口６（図５参照）から冷気が吹き出すことで前記運転席への風量が不足しがちとなり、運転席における快適な運転環境を整えることが難しいという問題があった。   However, in such a conventional structure, it is necessary to ensure that the inner peripheral surface of the indoor side panel 4b facing the passenger compartment side of the ceiling duct 4 forms a uniform curved surface having no unevenness as an advertising area for passengers. With this, the ceiling duct 4 is formed in a constant cross-section over the entire length, so that the seat outlet 5 and the standing seat on the way to the driver seat far away from the cooler unit 3 (see FIG. 4). There is a problem that it is difficult to prepare a comfortable driving environment in the driver seat because the cold air blows out from the outlet 6 (see FIG. 5), and the air volume to the driver seat tends to be insufficient.

本発明は上述の実情に鑑みてなしたもので、乗客用の冷気の風量を過不足無く確保しつつ運転席への風量を従来よりも増加し得るようにしたバス用ダクト構造を提供することを目的とする。   The present invention has been made in view of the above circumstances, and provides a duct structure for a bus that can increase the air volume to a driver's seat more than before while ensuring the air volume of passenger cold air without excess or deficiency. With the goal.

本発明は、バスの天井部における車幅方向両側で前記バスの前後方向に延在する天井ダクトを備え、前記天井部上面に搭載されたクーラユニットからの冷気を前記天井ダクトを介し車室内に分配するバス用ダクト構造であって、前記天井ダクトの車幅方向外側寄りの中途部に冷気の流路を狭める絞り部を設け、該絞り部により前記クーラユニットからの冷気の主流が流れるメインダクトを車幅方向内側に区画すると共に、該メインダクトから前記絞り部を通して導いた冷気の支流を窓際の座席吹出口に分配するサブダクトを車幅方向外側に区画したことを特徴とするものである。   The present invention includes a ceiling duct extending in the front-rear direction of the bus on both sides in the vehicle width direction on the ceiling of the bus, and cool air from a cooler unit mounted on the upper surface of the ceiling is introduced into the vehicle interior via the ceiling duct. A distribution duct structure for a bus, wherein a throttle part for narrowing a flow path of a cold air is provided in a middle part of the ceiling duct near the vehicle width direction, and a main duct through which a main flow of cold air flows from the cooler unit is provided by the throttle part And a sub duct that distributes a tributary of cool air guided from the main duct through the throttle portion to a seat outlet at the window is partitioned outward in the vehicle width direction.

而して、このようにすれば、絞り部により区画されたメインダクトに冷気の主流を確実に形成させて運転席への導風を促す一方、前記絞り部により風流れを制限しながらサブダクトに冷気を導くことでクーラユニットに近い座席吹出口へ風量が偏ることを是正することが可能となり、乗客用の冷気の風量を過不足無く確保しながら運転席への風量を従来よりも増加することが可能となる。   Thus, in this way, a main flow of cool air is surely formed in the main duct defined by the constricted portion to prompt the wind to the driver's seat, while the air flow is restricted by the constricted portion to the sub duct. By guiding the cool air, it becomes possible to correct the air flow bias toward the seat outlet near the cooler unit, and the air flow to the driver's seat can be increased more than before while ensuring sufficient air flow for the passenger. Is possible.

ここで、メインダクトとサブダクトとにおける冷気の風量配分については、絞り部による流路の狭め加減で調整することが可能であり、絞り部により流路を狭めれば狭めるほどメインダクトを流れる冷気の主流が増え、結果的に運転席まで導かれる冷気の風量が増えることになる。   Here, the air volume distribution of the cold air in the main duct and the sub duct can be adjusted by narrowing or reducing the flow path by the throttle part. The narrower the flow path by the throttle part, the cold air flowing through the main duct becomes narrower. The mainstream will increase, resulting in an increase in the amount of cold air that is led to the driver's seat.

また、本発明をより具体的に実施するにあたっては、天井ダクトを室外側パネルと室内側パネルとにより分割構成し、前記天井ダクトの車幅方向外側寄りの中途部にて室外側パネルを室内側パネルに近接するよう凹ませて絞り部を形成すると共に、その凹みにより前記室外側パネルの上部にハーネス類の配索空間を形成すると良い。   Further, in carrying out the present invention more specifically, the ceiling duct is divided into an outdoor panel and an indoor panel, and the outdoor panel is located on the indoor side in the middle of the ceiling duct in the vehicle width direction outside. It is preferable to form a constricted portion by being recessed so as to be close to the panel, and to form a wiring space for harnesses in the upper portion of the outdoor panel by the recess.

このようにすれば、天井ダクトの車室側に臨む室内側パネルを既存構造のまま維持して室外側パネルの形状変更だけで絞り部を形成することが可能となるので、天井ダクトの流路断面を前後方向に変化させるといった大幅な構造変更を招かなくて済み、しかも、配索空間を利用することでハーネス類を冷気の導風に悪影響を及ぼすこと無く配索することが可能となる。   In this way, it is possible to form the throttle part only by changing the shape of the outdoor panel while maintaining the indoor panel facing the passenger compartment side of the ceiling duct with the existing structure. It is not necessary to cause a significant structural change such as changing the cross-section in the front-rear direction, and harnesses can be routed without adversely affecting the airflow of cold air by using the routing space. .

更に、本発明においては、サブダクトの座席吹出口を穴あきの制風プレートで被覆し、該制風プレートの穴の大きさを各座席吹出口のクーラユニットからの距離に応じて変更することが好ましく、このようにすれば、制風プレートの穴の大きさを適切に設定することで各座席吹出口からの冷気の吹き出し量を微調整することが可能となる。   Furthermore, in the present invention, it is preferable that the seat air outlet of the sub duct is covered with a perforated wind control plate, and the size of the hole of the air control plate is changed according to the distance from the cooler unit of each seat air outlet. In this way, it is possible to finely adjust the amount of cool air blown from each seat outlet by appropriately setting the size of the hole of the wind control plate.

上記した本発明のバス用ダクト構造によれば、下記の如き種々の優れた効果を奏し得る。   According to the above-described bus duct structure of the present invention, the following various excellent effects can be obtained.

（Ｉ）本発明の請求項１に記載の発明によれば、メインダクトに冷気の主流を確実に形成させて運転席への導風を促すことができ、絞り部により風流れを制限しながらサブダクトに冷気を導くことでクーラユニットに近い座席吹出口へ風量が偏ることを是正することもできるので、乗客用の冷気の風量を過不足無く確保しつつ運転席への風量を従来よりも増加することができ、これにより運転席に十分な風量の冷気を導いて快適な運転環境を整えることができる。   (I) According to the invention described in claim 1 of the present invention, it is possible to surely form a main flow of cool air in the main duct to prompt the wind to the driver's seat, while restricting the wind flow by the throttle portion. By guiding the cool air to the sub duct, it is possible to correct the air flow to the seat outlet near the cooler unit, so the air flow to the driver's seat is increased more than before while ensuring sufficient air flow for passengers. Thus, it is possible to provide a comfortable driving environment by guiding a sufficient amount of cool air to the driver's seat.

（ＩＩ）本発明の請求項２に記載の発明によれば、天井ダクトの流路断面を前後方向に変化させるといった大幅な構造変更を回避してコストの高騰を抑制することができ、しかも、既存構造に対しても簡単な改造を施すだけで実施することができ、更には、ハーネス類を冷気の導風に悪影響を及ぼすこと無く配索することもできる。   (II) According to the invention described in claim 2 of the present invention, it is possible to avoid a significant structural change such as changing the cross section of the flow path of the ceiling duct in the front-rear direction, and to suppress an increase in cost, It can be carried out by simply modifying the existing structure, and further, the harnesses can be routed without adversely affecting the airflow of the cold air.

（ＩＩＩ）本発明の請求項３に記載の発明によれば、制風プレートの穴の大きさを適切に設定することで各座席吹出口からの冷気の吹き出し量を微調整することができるので、サブダクトの各座席吹出口相互間での冷気の吹き出し量をより確実に均等化させることができる。   (III) According to the invention described in claim 3 of the present invention, the amount of cool air blown out from each seat outlet can be finely adjusted by appropriately setting the size of the hole of the wind control plate. Further, the amount of cool air blown between the seat outlets of the sub duct can be more reliably equalized.

本発明を実施する形態の一例を示す断面図である。It is sectional drawing which shows an example of the form which implements this invention. 図１の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part of FIG. 図２の制風プレートを単品で示す斜視図である。It is a perspective view which shows the wind-control plate of FIG. 2 by a single item. 一般的なバスの一例を示す斜視図である。It is a perspective view which shows an example of a general bus | bath. 車室側から見上げた天井部のダクト構造を示す斜視図である。It is a perspective view which shows the duct structure of the ceiling part looked up from the vehicle interior side. 図５のＡ部分における天井ダクトの詳細な構造を示す斜視図である。It is a perspective view which shows the detailed structure of the ceiling duct in A part of FIG.

以下、本発明の実施の形態を図面を参照しつつ説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１〜図３は本発明を実施する形態の一例を示すもので、図４〜図６と同一の符号を付した部分は同一物を表わしており、先に図４〜図６で説明した従来のバス用ダクト構造の場合と同様に、天井ダクト４が室外側パネル４ａと室内側パネル４ｂとにより分割構成されているが、本形態例にあっては、天井ダクト４の車幅方向外側寄りの中途部にて室外側パネル４ａを室内側パネル４ｂに近接するよう凹ませ且つ板金で壁部９を立てて（発泡シール材等を用いて壁部９を成形しても良い）冷気の流路を狭める絞り部１０を形成し、この絞り部１０により前記クーラユニット３からの冷気の主流が流れるメインダクト１１を天井ダクト４内の車幅方向内側に区画すると共に、該メインダクト１１から前記絞り部１０を通して導いた冷気の支流を窓際の座席吹出口５に分配するサブダクト１２を天井ダクト４内の車幅方向外側に区画したところを特徴としている。   1 to 3 show an example of an embodiment for carrying out the present invention, and the parts denoted by the same reference numerals as those in FIGS. 4 to 6 represent the same items, and have been described with reference to FIGS. As in the case of the conventional bus duct structure, the ceiling duct 4 is divided and configured by the outdoor side panel 4a and the indoor side panel 4b. The outdoor side panel 4a is recessed so as to be close to the indoor side panel 4b in the middle of the wall, and the wall part 9 is erected with a sheet metal (the wall part 9 may be formed using a foamed sealing material). A throttle part 10 is formed to narrow the flow path, and the throttle part 10 divides the main duct 11 through which the main flow of cool air from the cooler unit 3 flows in the vehicle width direction inside the ceiling duct 4. The tributary of cold air guided through the throttle 10 It is characterized in where the sub-duct 12 to be distributed to the seat outlet 5 was partitioned in the vehicle width direction outer side of the ceiling duct 4 when.

また、前記室外側パネル４ａの上部には、前記絞り部１０を形成するための凹みによりメインダクト１１及びサブダクト１２から隔絶されたハーネス類の配索空間１３が形成されるようになっている。即ち、通常の場合においては、天井ダクト４が天井パネル８により上方から断熱材１７等を挟んで被覆されるようになっていて、天井ダクト４と天井パネル８との間に余剰空間が存在しないが、室外側パネル４ａを室内側パネル４ｂに近接するよう凹ませたことで余剰空間が生まれ、これをハーネス類の配索空間１３として利用することが可能となる。   In addition, a wiring space 13 for harnesses, which is isolated from the main duct 11 and the sub duct 12, is formed in the upper portion of the outdoor panel 4 a by a recess for forming the throttle portion 10. That is, in a normal case, the ceiling duct 4 is covered with the heat insulating material 17 and the like from above by the ceiling panel 8, and there is no surplus space between the ceiling duct 4 and the ceiling panel 8. However, when the outdoor panel 4a is recessed so as to be close to the indoor panel 4b, an extra space is created, and this can be used as the wiring space 13 for harnesses.

ここで、前記絞り部１０は、室外側パネル４ａの形状変更により該室外側パネル４ａ単独で形成することも可能であるが、別の板金部品として壁部９を加えて絞り部１０を設定するようにすれば、高さの異なる壁部９を適宜選択して用いることで、絞り部１０による流路の狭め加減の調整を容易に行うことが可能となる。   Here, the throttle unit 10 can be formed by the outdoor panel 4a alone by changing the shape of the outdoor panel 4a, but the throttle unit 10 is set by adding a wall 9 as another sheet metal part. If it does in this way, it becomes possible to adjust the narrowing adjustment of the flow path by the restricting part 10 easily by appropriately selecting and using the wall parts 9 having different heights.

更に補足して説明しておくと、図１は天井部２上面に搭載されたクーラユニット３の側方における天井ダクト４の断面図を示しており、前記室外側パネル４ａの車幅方向の最も内側に導風口７が開口され、該導風口７に前記クーラユニット３の送風機１４から連絡ダクト１５を介して冷気が送り込まれるようになっているが、この冷気がメインダクト１１の長手方向（図１の図面に対し直角な方向）に流れて主流を成し、該主流の一部が図１の断面とは異なる位相で開口している立席吹出口６から立席に吹き出される一方、絞り部１０を通り抜けてサブダクト１２に導入されることで支流を成し、窓際の各座席吹出口５から各座席に吹き出されるようにしてある。   In addition, FIG. 1 shows a cross-sectional view of the ceiling duct 4 on the side of the cooler unit 3 mounted on the upper surface of the ceiling portion 2, and shows the most in the vehicle width direction of the outdoor panel 4 a. An air guide port 7 is opened on the inner side, and cold air is sent to the air guide port 7 from the blower 14 of the cooler unit 3 through the communication duct 15. 1 in a direction perpendicular to the drawing of FIG. 1 to form a main stream, and a part of the main stream is blown out to a standing seat from a standing outlet 6 that opens at a phase different from the cross section of FIG. A tributary is formed by passing through the throttle portion 10 and being introduced into the sub duct 12, and is blown out to each seat from each seat outlet 5 at the window.

この際、図２に示す如く、前記サブダクト１２の各座席吹出口５は、穴あきの制風プレート１６（図３参照）で被覆されており、該制風プレート１６の穴１６ａの大きさを各座席吹出口５のクーラユニット３からの距離に応じて変更することで各座席吹出口５からの冷気の吹き出し量が微調整されるようになっている。   At this time, as shown in FIG. 2, each seat outlet 5 of the sub-duct 12 is covered with a perforated wind control plate 16 (see FIG. 3), and the size of the hole 16a of the wind control plate 16 is set to each size. The amount of cool air blown out from each seat outlet 5 is finely adjusted by changing the seat outlet 5 according to the distance from the cooler unit 3.

而して、このようにすれば、絞り部１０により区画されたメインダクト１１に冷気の主流を確実に形成させて運転席への導風を促す一方、前記絞り部１０により風流れを制限しながらサブダクト１２に冷気を導くことでクーラユニット３に近い座席吹出口５へ風量が偏ることを是正することが可能となり、乗客用の冷気の風量を過不足無く確保しながら運転席への風量を従来よりも増加することが可能となる。   Thus, in this way, the main duct 11 defined by the throttle unit 10 is surely formed with a main flow of cool air to prompt the wind to the driver's seat, while the throttle unit 10 restricts the wind flow. However, by guiding the cool air to the sub duct 12, it becomes possible to correct the air flow to the seat outlet 5 close to the cooler unit 3, and the air flow to the driver's seat is ensured while ensuring the air flow of the cool air for passengers without excess or deficiency. It becomes possible to increase than before.

ここで、メインダクト１１とサブダクト１２とにおける冷気の風量配分については、絞り部１０による流路の狭め加減で調整することが可能であり、本形態例の場合には、壁部９の高さを変えることで流路の狭め加減を調整でき、該流路を狭めれば狭めるほどメインダクト１１を流れる冷気の主流が増え、結果的に運転席まで導かれる冷気の風量が増えることになる。   Here, the air volume distribution of the cold air in the main duct 11 and the sub-duct 12 can be adjusted by narrowing or adjusting the flow path by the throttle portion 10. In the case of this embodiment, the height of the wall portion 9 is adjusted. As the flow path is narrowed, the main flow of cool air flowing through the main duct 11 increases, and as a result, the amount of cool air that is guided to the driver's seat increases.

また、本形態例では、天井ダクト４の車幅方向外側寄りの中途部にて室外側パネル４ａを室内側パネル４ｂに近接するよう凹ませ且つ板金で壁部９を立てて絞り部１０を形成し、その凹みにより前記室外側パネル４ａの上部にハーネス類の配索空間１３を形成しているが、このようにすれば、天井ダクト４の車室側に臨む室内側パネル４ｂを既存構造のまま維持して室外側パネル４ａの形状変更と壁部９の追加だけで絞り部１０を形成することが可能となるので、天井ダクト４の流路断面を前後方向に変化させるといった大幅な構造変更を招かなくて済み、しかも、配索空間１３を利用することでハーネス類を冷気の導風に悪影響を及ぼすこと無く配索することが可能となる。   In this embodiment, the outside panel 4a is recessed in the middle of the ceiling duct 4 near the vehicle width direction so as to be close to the room side panel 4b, and the wall portion 9 is erected with a sheet metal to form the throttle portion 10. However, the wiring arrangement space 13 of the harnesses is formed in the upper part of the outdoor side panel 4a by the dent. By doing so, the indoor side panel 4b facing the vehicle compartment side of the ceiling duct 4 can be made of the existing structure. Since it becomes possible to form the throttle part 10 only by changing the shape of the outdoor panel 4a and adding the wall part 9 while maintaining it as it is, a significant structural change such as changing the flow path cross section of the ceiling duct 4 in the front-rear direction. In addition, it is possible to route the harnesses without adversely affecting the airflow of the cold air by using the routing space 13.

尚、従来の天井ダクト４におけるハーネス類の配索においては、前記天井ダクト４の流路内における冷気の流れをできるだけ阻害しない位置に行われていたが、ハーネス類の配索状況により冷気の導風に悪影響が及ぶ懸念を完全には払拭できておらず、冷気を流す流路から隔絶された配索空間１３を形成してハーネス類を配索した方が好ましいことは勿論である。   Incidentally, the wiring of the harnesses in the conventional ceiling duct 4 is performed at a position where the flow of the cold air in the flow path of the ceiling duct 4 is not disturbed as much as possible. Needless to say, it is preferable to route the harnesses by forming the routing space 13 that is isolated from the flow path through which the cold air flows.

更に、本形態例の場合においては、サブダクト１２の座席吹出口５を穴あきの制風プレート１６で被覆し、該制風プレート１６の穴１６ａの大きさを各座席吹出口５のクーラユニット３からの距離に応じて変更するようにしているので、制風プレート１６の穴１６ａの大きさを適切に設定することで各座席吹出口５からの冷気の吹き出し量を微調整することが可能となる。   Furthermore, in the case of the present embodiment, the seat outlet 5 of the sub duct 12 is covered with the perforated wind control plate 16, and the size of the hole 16 a of the wind control plate 16 is changed from the cooler unit 3 of each seat outlet 5. Therefore, it is possible to finely adjust the amount of cool air blown out from each seat outlet 5 by appropriately setting the size of the hole 16a of the wind control plate 16. .

従って、上記形態例によれば、メインダクト１１に冷気の主流を確実に形成させて運転席への導風を促すことができ、絞り部１０により風流れを制限しながらサブダクト１２に冷気を導くことでクーラユニット３に近い座席吹出口５へ風量が偏ることを是正することもできるので、乗客用の冷気の風量を過不足無く確保しつつ運転席への風量を従来よりも増加することができ、これにより運転席に十分な風量の冷気を導いて快適な運転環境を整えることができる。   Therefore, according to the above-described embodiment, the main duct 11 can be surely formed with the main flow of cool air, and the wind can be guided to the driver's seat, and the cool air is guided to the sub duct 12 while restricting the wind flow by the throttle portion 10. As a result, it is possible to correct the deviation of the air volume toward the seat outlet 5 close to the cooler unit 3, so that it is possible to increase the air volume to the driver's seat more than before while ensuring sufficient air volume for the passenger. Thus, a comfortable driving environment can be prepared by guiding a sufficient amount of cold air to the driver's seat.

また、天井ダクト４の流路断面を前後方向に変化させるといった大幅な構造変更を回避してコストの高騰を抑制することができると共に、既存構造に対しても簡単な改造を施すだけで実施することができ、更には、ハーネス類を冷気の導風に悪影響を及ぼすこと無く配索することもできる。   Further, it is possible to avoid a significant structural change such as changing the cross-section of the flow path of the ceiling duct 4 in the front-rear direction, thereby suppressing an increase in cost, and performing only a simple modification to the existing structure. Furthermore, the harnesses can be routed without adversely affecting the airflow of the cold air.

しかも、制風プレート１６の穴１６ａの大きさを適切に設定することで各座席吹出口５からの冷気の吹き出し量を微調整することができるので、サブダクト１２の各座席吹出口５相互間での冷気の吹き出し量をより確実に均等化させることができる。   In addition, by appropriately setting the size of the hole 16a of the wind control plate 16, the amount of cool air blown out from each seat outlet 5 can be finely adjusted. The amount of cold air blown out can be equalized more reliably.

尚、本発明のバス用ダクト構造は、上述の形態例にのみ限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。   Note that the bus duct structure of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

１ バス
２ 天井部
３ クーラユニット
４ 天井ダクト
４ａ 室外側パネル
４ｂ 室内側パネル
５ 座席吹出口
１０ 絞り部
１１ メインダクト
１２ サブダクト
１３ ハーネス類の配索空間
１６ 制風プレート
１６ａ 穴 DESCRIPTION OF SYMBOLS 1 Bus 2 Ceiling part 3 Cooler unit 4 Ceiling duct 4a Outdoor side panel 4b Indoor side panel 5 Seat outlet 10 Restriction part 11 Main duct 12 Subduct 13 Arrangement space for harnesses 16 Wind control plate 16a Hole

Claims (3)

バスの天井部における車幅方向両側にて前記バスの前後方向に延在する天井ダクトを備え、前記天井部上面に搭載されたクーラユニットからの冷気を前記天井ダクトを介し車室内に分配するバス用ダクト構造であって、前記天井ダクトの車幅方向外側寄りの中途部に冷気の流路を狭める絞り部を設け、該絞り部により前記クーラユニットからの冷気の主流が流れるメインダクトを車幅方向内側に区画すると共に、該メインダクトから前記絞り部を通して導いた冷気の支流を窓際の座席吹出口に分配するサブダクトを車幅方向外側に区画したことを特徴とするバス用ダクト構造。   A bus having ceiling ducts extending in the front-rear direction of the bus on both sides of the bus ceiling in the vehicle width direction, and distributing cool air from a cooler unit mounted on the upper surface of the ceiling to the vehicle interior via the ceiling duct A duct structure for narrowing the flow path of the cold air in the middle of the ceiling duct in the vehicle width direction outside, and the main duct through which the main flow of the cool air from the cooler unit flows by the throttle section A bus duct structure characterized in that a sub-duct that divides a tributary of cool air guided from the main duct through the throttle portion to a seat outlet at the window is partitioned outward in the vehicle width direction. 天井ダクトを室外側パネルと室内側パネルとにより分割構成し、前記天井ダクトの車幅方向外側寄りの中途部にて室外側パネルを室内側パネルに近接するよう凹ませて絞り部を形成すると共に、その凹みにより前記室外側パネルの上部にハーネス類の配索空間を形成したことを特徴とする請求項１に記載のバス用ダクト構造。   The ceiling duct is divided into an outdoor side panel and an indoor side panel, and the throttle panel is formed by denting the outdoor side panel close to the indoor side panel in the middle of the ceiling duct in the vehicle width direction outer side. The bus duct structure according to claim 1, wherein a wiring space for harnesses is formed in the upper portion of the outdoor panel by the recess. サブダクトの座席吹出口を穴あきの制風プレートで被覆し、該制風プレートの穴の大きさを各座席吹出口のクーラユニットからの距離に応じて変更したことを特徴とする請求項１又は２に記載のバス用ダクト構造。   The seat air outlet of the sub-duct is covered with a perforated wind control plate, and the size of the hole of the air control plate is changed according to the distance from the cooler unit of each air outlet. The duct structure for buses as described in 1.
JP2016242012A 2016-12-14 2016-12-14 Duct structure for bus Pending JP2018095089A (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02133223A (en) * 1988-11-14 1990-05-22 Nippon Denso Co Ltd Vehicular air conditioner
JPH0636913U (en) * 1992-10-22 1994-05-17 阪急バス株式会社 Cooling equipment for large buses
JPH0649112U (en) * 1992-12-15 1994-07-05 アラコ株式会社 Duct structure of vehicle air conditioner
JPH0660571U (en) * 1993-02-02 1994-08-23 日立化成工業株式会社 Structure of ceiling air-conditioning duct for railway vehicles
JPH10339501A (en) * 1997-06-10 1998-12-22 Denso Corp Air conditioner for bus vehicle
JP2004155306A (en) * 2002-11-06 2004-06-03 Denso Corp Ceiling blow-off device for vehicular air- conditioning
JP2007030694A (en) * 2005-07-27 2007-02-08 Hino Motors Ltd Duct structure of bus
US20100087130A1 (en) * 2007-03-26 2010-04-08 Airbus Operations Gmbh Supply channel comprising an air distribution system for vehicles, aircraft having such a supply channel, and method for producing a supply channel
JP2012001014A (en) * 2010-06-14 2012-01-05 Mitsubishi Fuso Truck & Bus Corp Heater of route bus
JP2014231241A (en) * 2013-05-28 2014-12-11 豊田合成株式会社 Duct device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02133223A (en) * 1988-11-14 1990-05-22 Nippon Denso Co Ltd Vehicular air conditioner
JPH0636913U (en) * 1992-10-22 1994-05-17 阪急バス株式会社 Cooling equipment for large buses
JPH0649112U (en) * 1992-12-15 1994-07-05 アラコ株式会社 Duct structure of vehicle air conditioner
JPH0660571U (en) * 1993-02-02 1994-08-23 日立化成工業株式会社 Structure of ceiling air-conditioning duct for railway vehicles
JPH10339501A (en) * 1997-06-10 1998-12-22 Denso Corp Air conditioner for bus vehicle
JP2004155306A (en) * 2002-11-06 2004-06-03 Denso Corp Ceiling blow-off device for vehicular air- conditioning
JP2007030694A (en) * 2005-07-27 2007-02-08 Hino Motors Ltd Duct structure of bus
US20100087130A1 (en) * 2007-03-26 2010-04-08 Airbus Operations Gmbh Supply channel comprising an air distribution system for vehicles, aircraft having such a supply channel, and method for producing a supply channel
JP2012001014A (en) * 2010-06-14 2012-01-05 Mitsubishi Fuso Truck & Bus Corp Heater of route bus
JP2014231241A (en) * 2013-05-28 2014-12-11 豊田合成株式会社 Duct device

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