JP2000225855A - Car body structure of compressed natural gas engine- mounted bus - Google Patents
Car body structure of compressed natural gas engine- mounted busInfo
- Publication number
- JP2000225855A JP2000225855A JP2617999A JP2617999A JP2000225855A JP 2000225855 A JP2000225855 A JP 2000225855A JP 2617999 A JP2617999 A JP 2617999A JP 2617999 A JP2617999 A JP 2617999A JP 2000225855 A JP2000225855 A JP 2000225855A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- bus
- natural gas
- cover member
- gas engine
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Body Structure For Vehicles (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、圧縮天然ガス（以
下、本明細書では「ＣＮＧ」と記載する）を燃料とする
エンジン（圧縮天然ガスエンジン：ＣＮＧエンジン）を
搭載したバスの車体構造に関し、特に屋根上に搭載する
ＣＮＧボンベの搭載機構、及びそのカバー部材に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus body structure equipped with an engine (compressed natural gas engine: CNG engine) using compressed natural gas (hereinafter referred to as "CNG") as a fuel. In particular, the present invention relates to a mounting mechanism of a CNG cylinder mounted on a roof and a cover member thereof.
【０００２】[0002]
【従来の技術】従来、ＣＮＧエンジンで運転されるバス
は、床下部分にボンベを搭載しており、そのレイアウト
には、種々の規制或いは制限がある。2. Description of the Related Art Conventionally, a bus operated by a CNG engine has a cylinder mounted under the floor, and its layout has various restrictions or restrictions.
【０００３】しかし、公共の乗り物であるバスは、高福
祉化の点から低床化が望まれているが、ＣＮＧボンベが
床下に有ると低床化が困難である。[0003] However, it is desired that the bus, which is a public vehicle, be lowered in height from the viewpoint of higher welfare, but it is difficult to lower the floor if the CNG cylinder is under the floor.
【０００４】ここで、ＣＮＧボンベを屋根上に搭載する
ことで、そのような規制や制限からは解放される。例え
ば、１９９６年９月３０日から１０月４日まで、マレー
シアのクアラルンプール市のプトラ世界貿易センターで
開催された「天然ガスを用いた自動車の９６年会議及び
博覧会」に、ＣＮＧボンベが屋根上に搭載されバスが展
示された。Here, by mounting a CNG cylinder on a roof, such restrictions and restrictions are released. For example, a CNG cylinder was installed at the “96 Conference and Exposition on Automobiles Using Natural Gas” held at Putra World Trade Center in Kuala Lumpur, Malaysia from September 30 to October 4, 1996. The bus was displayed on board.
【０００５】しかし、ＣＮＧボンベは重量大（１６５リ
ットルＦＲＰ製のボンベで６５Ｋｇ、１２５リットル鋼
製のボンベで１６０Ｋｇ）であるため、バスの屋根上に
搭載することは、強度上の困難があった。上記した「天
然ガスを用いた自動車の９６年会議及び博覧会」に展示
されたバスに関しては、かかる強度上の問題をクリアす
るものではない。したがって、重量物であるＣＮＧボン
ベをバスの屋根上に搭載するための構成は示されていな
い。また、重量物の搭載は、その搭載位置により、前後
輪重量荷重の配分の問題も生じる。However, since the CNG cylinder is large (65 kg in a 165 liter FRP cylinder and 160 kg in a 125 liter steel cylinder), it is difficult to mount it on the roof of a bus. . The bus exhibited at the above-mentioned "96th Conference and Exposition of Automobiles Using Natural Gas" does not solve such a problem on strength. Therefore, a configuration for mounting a heavy CNG cylinder on the roof of a bus is not shown. In addition, when a heavy object is mounted, there is a problem of distribution of the weight load of the front and rear wheels depending on the mounting position.
【０００６】これに対して発明者は種々研究の結果、最
近、強度上の問題を解決し、重量物であるＣＮＧボンベ
をバスの屋根上に搭載する技術を開発した。On the other hand, as a result of various studies, the inventor recently solved a problem of strength and developed a technique of mounting a heavy CNG cylinder on a bus roof.
【０００７】この技術によってＣＮＧボンベを屋根上に
搭載したバスが実用化されるに至ったが、屋根上にボン
ベが露出した状態では見栄えが悪く、そこで、ボンベを
カバー部材で覆うことが考えられるが、屋根上にカバー
等を設けるとその他の機器とのスペースの取り合いやそ
の配設位置による前後輪荷重の配分、あるいは、カバー
部材の内部空間やボンベ周辺の空間に熱気がこもって、
当該空間内部の圧力が上昇してしまうという問題が起こ
り、特に、気温が高い夏期においては、この問題は大き
い。[0007] This technology has led to the practical use of a bus having a CNG cylinder mounted on a roof, but the appearance is poor when the cylinder is exposed on the roof, so it is conceivable to cover the cylinder with a cover member. However, if a cover or the like is provided on the roof, allocation of space to other equipment and distribution of front and rear wheel loads depending on the arrangement position, or hot air is trapped in the internal space of the cover member and the space around the cylinder,
There is a problem that the pressure inside the space increases, and this problem is particularly serious in summer when the temperature is high.
【０００８】従来の技術では、ＣＮＧボンベを屋根上に
搭載したバス自体が新規であるため、上記したような問
題は考慮されていない。すなわち、従来技術において
は、何等解決策は提案されていない。In the prior art, the above-mentioned problem is not taken into consideration because the bus itself having the CNG cylinder mounted on the roof is new. That is, no solution is proposed in the prior art.
【０００９】なお、従来技術としては、本出願人によっ
て実開平７−２１４２１号公報、及び実開平７−２４６
２２号公報に車両のフレームより下方にボンベを取り付
ける技術が開示されている。さらに、特開平７−１１７
４９６号公報、特開平７−２２３４４７号公報、及び実
開平６−３９８９３号公報に燃料ガスボンベの支持構造
が開示されている。しかし、これ等の技術は、いずれ
も、強度上無理なくバスの屋根上にボンベを搭載するも
のではなく、また、ボンベをカバー部材で覆った場合に
その内部に熱気がこもるという問題を解決するものでは
ない。The prior art is disclosed by the present applicant in Japanese Utility Model Laid-Open No. 21421/1995 and Japanese Utility Model Laid-Open No. 7-246.
Japanese Patent Publication No. 22 discloses a technique for mounting a cylinder below a frame of a vehicle. Further, Japanese Patent Application Laid-Open No. 7-117
No. 496, Japanese Unexamined Patent Publication No. 7-223449 and Japanese Unexamined Utility Model Publication No. 6-39893 disclose a support structure for a fuel gas cylinder. However, none of these techniques can easily mount a cylinder on the roof of a bus because of its strength, and solve the problem that when the cylinder is covered with a cover member, hot air is trapped inside. Not something.
【００１０】[0010]
【発明が解決しようとする課題】本発明は、上記した従
来技術の問題点に対して提案されたもので、屋根上に搭
載したボンベを覆って見栄えを改善し、かつ、その他の
機器類とのスペースの取り合いや前後輪荷重の配分の問
題、そしてカバー内部に熱気がこもるということがな
く、それに起因して発生する種々の問題を解決できるバ
スの車体構造を提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-mentioned problems of the prior art, and has an improved appearance by covering a cylinder mounted on a roof and improving the appearance of other equipment. It is an object of the present invention to provide a bus body structure capable of solving the problems of space allocation, load distribution of front and rear wheels, and various problems arising therefrom without trapping hot air inside the cover.
【００１１】[0011]
【課題を解決するための手段】本発明によれば、圧縮天
然ガスエンジンを搭載したバスの車体構造において、屋
根部分にはボンベ搭載用機構を有し、そのボンベ搭載用
機構上に複数のボンベをその中心軸がバス中心軸に直交
するように並設し、それらのボンベを覆ったカバー部材
を設け、そのカバー部材の左右の両側面はボンベを前後
方向に覆った端面より延長し先下がりに傾斜して板状の
突起部を形成しているここで、カバー部材左右の両側面
を延長した突起部は、車両の前方のみ、あるいは、前及
び後方の両方のいずれでも良い。According to the present invention, in a vehicle body structure of a bus equipped with a compressed natural gas engine, a roof has a cylinder mounting mechanism, and a plurality of cylinders are mounted on the cylinder mounting mechanism. The central axis is arranged side by side so as to be orthogonal to the central axis of the bus, and a cover member covering those cylinders is provided, and both left and right side surfaces of the cover member extend from the end face covering the cylinder in the front-rear direction and descend downward. Here, the protruding portions extending on both left and right sides of the cover member may be provided only at the front of the vehicle, or at both the front and rear sides.
【００１２】そして、前記突起部の内部に補強枠体を設
けている。A reinforcing frame is provided inside the projection.
【００１３】また、前記補強枠体は前方から見て上方が
開くような角度を付け、ボンベの配管を保護するように
形成している。The reinforcing frame is formed so as to open upward when viewed from the front, so as to protect the cylinder piping.
【００１４】したがって、本発明によれば、カバー部材
は、その左右両側面はボンベを覆った部分より延長さ
れ、見栄えが良く、その左右両突起部に挟まれたスペー
スには他の機器類の配設が可能で、その分、重量物であ
るボンベの配設位置の自由度が増え、軸重の配分が有利
に行える。Therefore, according to the present invention, the right and left side surfaces of the cover member are extended from the portion covering the cylinder, so that the cover member has a good appearance, and the space between the left and right protrusions has a space for other equipment. It is possible to arrange the cylinders, and accordingly, the degree of freedom of the arrangement position of the heavy cylinder is increased, and the axle load can be advantageously distributed.
【００１５】そして、前記カバー部材の裾の部分は、全
周に渡って屋根板と間隙を有し、通気・排水可能に形成
している。[0015] The skirt portion of the cover member has a gap with the roof plate over the entire circumference, and is formed to be able to ventilate and drain.
【００１６】また、前記カバー部材の後面にスリット状
の排気孔を設けている。Further, a slit-shaped exhaust hole is provided on the rear surface of the cover member.
【００１７】また、前記カバー部材の側面にボンベの点
検孔を設け、その点検孔の蓋の周りには間隙を設けて通
気可能に構成している。Further, an inspection hole of the cylinder is provided on a side surface of the cover member, and a gap is provided around a lid of the inspection hole to allow ventilation.
【００１８】したがって、本発明によれば、カバー部材
の裾の部分に形成された間隙から、カバー内の熱気が排
出され、また、例え、雨水が侵入した場合においても容
易に排水される。また、後面のスリット状の排気孔から
も排気され、側面点検孔は、内部のボンベの点検、ある
いはカバー部材の着脱作業と共に通気が行える。Therefore, according to the present invention, the hot air in the cover is discharged from the gap formed at the bottom of the cover member, and even if rainwater enters, it is easily drained. The air is also exhausted from the slit-shaped exhaust hole on the rear surface, and the side inspection hole can be ventilated together with the inspection of the internal cylinder or the work of attaching and detaching the cover member.
【００１９】さらに、前記ボンベ搭載用機構は、屋根板
の室内側にバス中心軸に直角方向に延びる複数の補強用
垂木を設け、屋根板を挟んでその対向側に前記垂木を跨
いでバス中心軸に平行に延びる複数の縦部材を設け、そ
の縦部材上にボンベ取り付けフレームを固設しブラケッ
トを介してボンベを取り付けている。Further, the cylinder mounting mechanism is provided with a plurality of reinforcing rafters extending in a direction perpendicular to the center axis of the bus on the indoor side of the roof plate, and straddling the rafter on the opposite side of the roof plate with the roof plate interposed therebetween. A plurality of vertical members extending parallel to the axis are provided, a cylinder mounting frame is fixed on the vertical members, and the cylinder is mounted via a bracket.
【００２０】このような構成によって、重量物であるボ
ンベの屋根上への搭載が強度上の無理がなく達成できる
と共に、カバー部材の配設が容易に行える。With such a configuration, the heavy cylinder can be mounted on the roof without difficulty in strength, and the cover member can be easily arranged.
【００２１】[0021]
【発明の実施の形態】以下、図面を参照して本発明の実
施形態を説明する。図１にバス車体１の屋根上に装着さ
れたボンベ搭載用機構２の概要が示されている。本実施
形態ではＣＮＧボンベ３の中心軸を車両中心軸に対して
直角方向に向け、４本を前後方向に並べて搭載するボン
ベ搭載用機構２が装着されている。屋根板４の内側には
強度部材の垂木５ａ、５ｂ、５ｃ、５ｄ（総称する場合
は５と略記する。）が設けられ、屋根板４を挟んでその
対向側にそれらの垂木５を跨いでバス中心軸に平行に延
びる複数の縦部材６が設けられており、その縦部材６及
びボンベ取付フレーム２０を介して前記ボンベ３が取付
けられ、その上にこの図に示してないカバー部材１０が
装着される。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an outline of a cylinder mounting mechanism 2 mounted on a roof of a bus body 1. In the present embodiment, a cylinder mounting mechanism 2 is mounted, in which the central axis of the CNG cylinder 3 is oriented in a direction perpendicular to the vehicle central axis, and four cylinders are mounted side by side in the front-rear direction. Rafters 5 a, 5 b, 5 c, and 5 d (which are abbreviated as 5 in the collective name) of strength members are provided inside the roof plate 4, and the rafters 5 are straddled on the opposite side with the roof plate 4 interposed therebetween. A plurality of vertical members 6 extending parallel to the center axis of the bus are provided, and the cylinder 3 is mounted via the vertical members 6 and the cylinder mounting frame 20, on which a cover member 10 not shown in this drawing is mounted. Be attached.
【００２２】ボンベ取付フレーム２０は、図２及び図３
に示すように、矩形中空管材によって井桁状に構成され
ている。横材２２および縦材２３は同形材で、結合部は
溶接とリブ２４による補強で固定されている。横材２２
の両端部に固着された不等長アングル状の部材２６はボ
ルト孔２６ａが穿孔されて縦部材６にボルト２１で固定
するよう構成されている。また、縦材２３の上面に穿孔
された複数のボルト孔２５は、ボンベブラケット１８
（図３参照）を結合するためのボルト挿入用の貫通孔と
して形成されている。The cylinder mounting frame 20 is shown in FIGS.
As shown in (1), it is formed in a cross-girder shape by a rectangular hollow tube material. The cross member 22 and the vertical member 23 are of the same shape, and the joint is fixed by welding and reinforcement by ribs 24. Cross member 22
The unequal-length angle-shaped members 26 fixed to both end portions are formed with a bolt hole 26a and fixed to the vertical member 6 with bolts 21. The plurality of bolt holes 25 drilled on the upper surface of the vertical member 23 are
(See FIG. 3).
【００２３】カバー部材１０は、図４〜図６に示すよう
に、４本のボンベ３を覆い、その左右の両側面Ｌ、Ｒは
車両前面Ｆよりさらに延長され、前下がりに傾斜して延
び、板状の突起部１１、１１が形成されている。そし
て、その突起部１１、１１の内部には、それぞれ三角形
状の補強枠体１２が設けられ、その上端部は互いに連結
されている。As shown in FIGS. 4 to 6, the cover member 10 covers four cylinders 3, and both left and right side surfaces L and R are further extended from the front surface F of the vehicle and extend obliquely downward and forward. , Plate-shaped projections 11 and 11 are formed. A triangular reinforcing frame 12 is provided inside each of the protrusions 11, 11, and their upper ends are connected to each other.
【００２４】なお、このカバー部材１０の取り付けは、
図６に示されているように側面内側に突設された板材１
６とボンベ取付フレーム２０とがボルトによって固着さ
れ、後記する点検孔１３から締め付けが行えるようにな
っている。The mounting of the cover member 10 is as follows.
As shown in FIG. 6, a plate 1 protruding from the inside of the side surface
6 and the cylinder mounting frame 20 are fixed by bolts, and can be tightened through an inspection hole 13 described later.
【００２５】ＣＮＧボンベ３は重量物であり、一般にバ
スにおいてはエンジンが後部にあるため、前後軸の荷重
配分からは車両の前方寄りに搭載することが好ましい。
このように、カバー部材１０は、その前方側は左右両端
部のみが突起部１１、１１として延長され、その間のス
ペースを他の機器類、例えば換気扇やアンテナ等の配設
スペースとして有効に利用できる。言い換えれば、他の
機器類とぎりぎりの所までボンベ３を前進して配設する
ことができる。Since the CNG cylinder 3 is heavy and the engine is generally located at the rear part of the bus, it is preferable that the CNG cylinder be mounted closer to the front of the vehicle from the viewpoint of load distribution on the front and rear shafts.
As described above, only the left and right ends of the cover member 10 are extended as the protrusions 11 on the front side, and the space therebetween can be effectively used as a space for disposing other devices such as a ventilation fan and an antenna. . In other words, it is possible to dispose the cylinder 3 by moving forward just before the other devices.
【００２６】そして、カバー部材１０の裾の部分は、全
周に渡って屋根板４と間隙ｓを有して形成され、カバー
内部の熱気等の通気が可能で、さらに、例え、雨水が侵
入した場合においても排水が可能である。The skirt portion of the cover member 10 is formed so as to have a gap s with the roof plate 4 over the entire circumference, so that hot air or the like inside the cover can be ventilated. Drainage is possible even if it is done.
【００２７】また、カバー部材１０の後面Ｒにもこの例
では２か所のスリット状の排気孔１４、１４が設けられ
ている。さらに両側面Ｌ、Ｒには点検孔１３、１３が設
けられ、その蓋１５、１５との間には隙間ｓ１を有して
おり、同様に通気可能になっている。Further, in this example, two slit-shaped exhaust holes 14 are provided on the rear surface R of the cover member 10 in this example. Further, inspection holes 13 and 13 are provided on both side surfaces L and R, and a gap s1 is provided between the inspection holes 13 and the lids 15 so that ventilation is possible.
【００２８】図７及び図８に示す実施形態は、カバー部
材１０Ａの両側面Ｌ、Ｒは前後に延長され、それぞれ突
起部１１が設けられている。このようにすることで、見
栄えはさらに向上する。In the embodiment shown in FIGS. 7 and 8, both side surfaces L and R of the cover member 10A are extended back and forth, and are provided with protrusions 11, respectively. By doing so, the appearance is further improved.
【００２９】次に、図９に示す実施形態では、突起部１
１、１１内に設けられた補強枠体１２Ａの左右の三角形
状の斜辺を形成する部分は、前方より見て上方が開くよ
うな角度を付けて立設されている。このようにすること
で、ボンベ３の配管（Ｐ）を前方からの物体の衝突から
保護できる。Next, in the embodiment shown in FIG.
The portions forming the left and right triangular oblique sides of the reinforcing frame body 12A provided in the insides 1 and 11 are erected at an angle such that the upper part opens upward when viewed from the front. By doing so, the pipe (P) of the cylinder 3 can be protected from collision of an object from the front.
【００３０】また、図１０には、前記図７及び図８に示
した前後両方向に突起部１１を設けた例に対して同様に
補強枠体１２Ａを傾斜させた実施形態が示されている。FIG. 10 shows an embodiment in which the reinforcing frame 12A is similarly inclined with respect to the example in which the projections 11 are provided in both the front and rear directions shown in FIGS.
【００３１】尚、燃料ボンベが４個搭載されている例を
示したが、これに限定するものではない。Although an example in which four fuel cylinders are mounted is shown, the invention is not limited to this.
【００３２】[0032]
【発明の効果】本発明は、以上説明したように構成さ
れ、以下の効果を奏する。 （ａ） カバー部材はその側面が内部に搭載されたボン
ベより延長され、特に、側方から見て、見栄えが良い。 （ｂ） カバー部材の左右の突起部間のスペースには他
の機器類、例えば換気扇やアンテナ等を配設することが
できる。すなわち、それだけボンベ自体を他の機器類に
接近させることで、前軸側に重量荷重を移し、重量配分
を有利にすることができる。 （ｃ） カバー部材の裾の部分と屋根板との間隙、後面
のスリット状の排気孔、側面の点検孔と蓋との間の間隙
等によってカバー内の熱気を容易に逃がすことができ
る。 （ｄ） 突起部内の補強枠体は、上方の障害物、例えば
陸橋・ガード等との衝突が起きた場合に、ボンベ配管を
保護する。The present invention is configured as described above and has the following effects. (A) The side surface of the cover member is extended from the cylinder mounted inside, and the appearance is particularly good when viewed from the side. (B) In the space between the left and right protrusions of the cover member, other devices such as a ventilation fan and an antenna can be provided. That is, by bringing the cylinder itself closer to other equipment, the weight load can be shifted to the front shaft side, and the weight distribution can be made more advantageous. (C) The hot air in the cover can be easily released by the gap between the skirt portion of the cover member and the roof plate, the slit-shaped exhaust hole on the rear surface, the gap between the inspection hole on the side surface and the lid, and the like. (D) The reinforcing frame in the protrusion protects the cylinder piping in the event of a collision with an upper obstacle, for example, an overpass or guard.
【図１】本発明を実施するＣＮＧエンジン搭載バスのボ
ンベ搭載状態を示す斜視図。FIG. 1 is a perspective view showing a state in which a CNG engine-equipped bus embodying the present invention is mounted on a cylinder.
【図２】ボンベ取付けフレームを示す平面図。FIG. 2 is a plan view showing a cylinder mounting frame.
【図３】ボンベ取付けフレームにボンベを取り付けた状
態を示す正面図。FIG. 3 is a front view showing a state where a cylinder is mounted on a cylinder mounting frame.
【図４】カバー部材を示す平面図。FIG. 4 is a plan view showing a cover member.
【図５】図４の側面図。FIG. 5 is a side view of FIG. 4;
【図６】図４のＡ−Ａ断面図。FIG. 6 is a sectional view taken along line AA of FIG. 4;
【図７】本発明のカバー部材の別の実施形態を示す平面
図。FIG. 7 is a plan view showing another embodiment of the cover member of the present invention.
【図８】図７の平面図。FIG. 8 is a plan view of FIG. 7;
【図９】本発明のさらに別の実施形態を示す平面図。FIG. 9 is a plan view showing still another embodiment of the present invention.
【図１０】本発明のさらに別の実施形態を示す平面図。FIG. 10 is a plan view showing still another embodiment of the present invention.
１・・・バス車体 ２・・・ボンベ搭載用機構 ３・・・ボンベ ４・・・屋根板 ５・・・垂木 ６・・・縦部材 １０、１０Ａ・・・カバー部材 １１・・・突起部 １２、１２Ａ・・・補強枠体 １３・・・点検孔 １４・・・排気孔 １５・・・蓋 １８・・ボンベブラケット ２０・・ボンベ取付けフレーム DESCRIPTION OF SYMBOLS 1 ... Bus body 2 ... Cylinder mounting mechanism 3 ... Cylinder 4 ... Roof plate 5 ... Rafter 6 ... Vertical member 10, 10A ... Cover member 11 ... Projection 12, 12A ... reinforcement frame 13 ... inspection hole 14 ... exhaust hole 15 ... lid 18 ... cylinder bracket 20 ... cylinder mounting frame
───────────────────────────────────────────────────── フロントページの続き (72)発明者 飯 岡 可 八 埼玉県上尾市大字壱丁目１番地 日産ディ ーゼル工業株式会社内 (72)発明者 三 好 勉 埼玉県上尾市大字壱丁目１番地 日産ディ ーゼル工業株式会社内 (72)発明者 山 田 賢 埼玉県上尾市大字壱丁目１番地 日産ディ ーゼル工業株式会社内 (72)発明者 高 田 與 一 東京都新宿区西新宿一丁目７番２号 富士 重工業株式会社内 Ｆターム(参考） 3D003 AA00 AA02 AA08 AA18 BB10 CA38 DA07 3D038 CA14 CB02 CC18 3E072 AA01 AB03 AB11 GA30 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kahachi Iioka 1-chome, 1-chome, Daio, Saio-shi, Saitama Prefecture Inside (72) Inventor Tsutomu Miyoshi 1-chome, 1-chome, 1-chome, Ageo-shi, Saitama Nissan Inside Diesel Industry Co., Ltd. (72) Inventor Ken Yamada 1-chome, 1-chome, Ageo-shi, Saitama Nissan Diesel Industry Co., Ltd. (72) Inventor Yoichi Takada 1-7-1, Nishishinjuku, Shinjuku-ku, Tokyo No. Fuji Heavy Industries, Ltd. F-term (reference) 3D003 AA00 AA02 AA08 AA18 BB10 CA38 DA07 3D038 CA14 CB02 CC18 3E072 AA01 AB03 AB11 GA30
Claims (7)
車体構造において、屋根部分にはボンベ搭載用機構を有
し、そのボンベ搭載用機構上に複数のボンベをその中心
軸がバス中心軸に直交するように並設し、それらのボン
ベを覆ったカバー部材を設け、そのカバー部材の左右の
両側面はボンベを前後方向に覆った端面より延長し先下
がりに傾斜して板状の突起部を形成していることを特徴
とする圧縮天然ガスエンジン搭載バスの車体構造。In a vehicle body structure of a bus equipped with a compressed natural gas engine, a mechanism for mounting a cylinder is provided on a roof portion, and a plurality of cylinders are provided on the mechanism for mounting a cylinder, the central axis of which is orthogonal to the central axis of the bus. A cover member that covers the cylinders is provided in parallel so that the left and right sides of the cover member extend from the end face that covers the cylinder in the front-rear direction, and are inclined downward to form a plate-like projection. A body structure of a bus equipped with a compressed natural gas engine, characterized by being formed.
求項１の圧縮天然ガスエンジン搭載バスの車体構造。2. The vehicle body structure of a bus equipped with a compressed natural gas engine according to claim 1, wherein a reinforcing frame is provided inside said projection.
ような角度を付け、ボンベの配管を保護するように形成
した請求項２の圧縮天然ガスエンジン搭載バスの車体構
造。3. The vehicle body structure of a bus mounted with a compressed natural gas engine according to claim 2, wherein said reinforcing frame is formed so as to open upward when viewed from the front so as to protect the piping of the cylinder.
って屋根板と間隙を有し、通気・排水可能に形成した請
求項１〜３のいずれかの圧縮天然ガスエンジン搭載バス
の車体構造。4. The compressed natural gas engine-equipped bus according to any one of claims 1 to 3, wherein the skirt portion of the cover member has a gap with the roof plate over the entire circumference and is formed to allow ventilation and drainage. Body structure.
気孔を設けた請求項１〜４のいずれかの圧縮天然ガスエ
ンジン搭載バスの車体構造。5. The vehicle body structure of a bus equipped with a compressed natural gas engine according to claim 1, wherein a slit-shaped exhaust hole is provided on a rear surface of said cover member.
を設け、その点検孔の蓋の周りには間隙を設けて通気可
能に構成した請求項１〜５のいずれかの圧縮天然ガスエ
ンジン搭載バスの車体構造。6. The compressed natural gas engine according to claim 1, wherein an inspection hole of the cylinder is provided on a side surface of the cover member, and a gap is provided around a lid of the inspection hole to allow ventilation. Bus body structure.
側にバス中心軸に直角方向に延びる複数の補強用垂木を
設け、屋根板を挟んでその対向側に前記垂木を跨いでバ
ス中心軸に平行に延びる複数の縦部材を設け、その縦部
材上にボンベ取り付けフレームを固設しブラケットを介
してボンベを取り付けている請求項１〜６のいずれかの
圧縮天然ガスエンジン搭載バスの車体構造。7. The cylinder mounting mechanism is provided with a plurality of reinforcing rafters extending in a direction perpendicular to the center axis of the bus on the indoor side of the roof plate, and straddling the rafter on the opposite side of the roof plate with the roof plate interposed therebetween. The vehicle body of a bus equipped with a compressed natural gas engine according to any one of claims 1 to 6, wherein a plurality of vertical members extending parallel to the axis are provided, and a cylinder mounting frame is fixed on the vertical members and the cylinder is mounted via a bracket. Construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2617999A JP3651653B2 (en) | 1999-02-03 | 1999-02-03 | Body structure of a bus with a compressed natural gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2617999A JP3651653B2 (en) | 1999-02-03 | 1999-02-03 | Body structure of a bus with a compressed natural gas engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000225855A true JP2000225855A (en) | 2000-08-15 |
| JP3651653B2 JP3651653B2 (en) | 2005-05-25 |
Family
ID=12186311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2617999A Expired - Fee Related JP3651653B2 (en) | 1999-02-03 | 1999-02-03 | Body structure of a bus with a compressed natural gas engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3651653B2 (en) |
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| JP2003025858A (en) * | 2001-07-19 | 2003-01-29 | Hitachi Furukawa Kenki Kk | Wheel loader with compressed natural gas engine mounted |
| AT500534A1 (en) * | 2002-03-13 | 2006-01-15 | Man Nutzfahrzeuge Ag | GAS-SERVED OMNIBUS |
| US6986494B2 (en) | 2003-05-15 | 2006-01-17 | Dyneter Industries Ltd. | Self-aligning mounting bracket and system for mounting a planar structure to a fixed structure |
| WO2006073193A1 (en) * | 2005-01-07 | 2006-07-13 | Toyota Jidosha Kabushiki Kaisha | Vehicle and method for loading gaseous fuel tank |
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| JP2003025858A (en) * | 2001-07-19 | 2003-01-29 | Hitachi Furukawa Kenki Kk | Wheel loader with compressed natural gas engine mounted |
| AT500534A1 (en) * | 2002-03-13 | 2006-01-15 | Man Nutzfahrzeuge Ag | GAS-SERVED OMNIBUS |
| US6986494B2 (en) | 2003-05-15 | 2006-01-17 | Dyneter Industries Ltd. | Self-aligning mounting bracket and system for mounting a planar structure to a fixed structure |
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| WO2006073192A1 (en) * | 2005-01-07 | 2006-07-13 | Toyota Jidosha Kabushiki Kaisha | Gaseous fuel tank loaded vehicle |
| JP2006188169A (en) * | 2005-01-07 | 2006-07-20 | Toyota Motor Corp | Vehicle, and method for mounting gas fuel tank |
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| EP1762436A1 (en) * | 2005-09-10 | 2007-03-14 | MAN Nutzfahrzeuge Aktiengesellschaft | Omnibus with a roof extension mountable on its roof. |
| JP2007290645A (en) * | 2006-04-27 | 2007-11-08 | Mitsubishi Heavy Ind Ltd | Air conditioner for vehicle |
| KR100889130B1 (en) | 2007-12-13 | 2009-03-16 | 현대자동차주식회사 | A roof inforcement structure for a lower height bus |
| JP4692593B2 (en) * | 2008-08-22 | 2011-06-01 | トヨタ自動車株式会社 | Vehicle with gas fuel tank |
| JP4692594B2 (en) * | 2008-08-22 | 2011-06-01 | トヨタ自動車株式会社 | Vehicle with gas fuel tank |
| JP2008280040A (en) * | 2008-08-22 | 2008-11-20 | Toyota Motor Corp | Vehicle mounted with gas fuel tank |
| JP2008273525A (en) * | 2008-08-22 | 2008-11-13 | Toyota Motor Corp | Gas fuel tank mounting vehicle |
| CN104015807A (en) * | 2014-06-06 | 2014-09-03 | 中通客车控股股份有限公司 | Automobile roof cover and automobile provided with same |
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| EP3078561B2 (en) † | 2015-04-09 | 2022-11-09 | ALSTOM Transport Technologies | A railway traction vehicle with a modular fuel gas tank |
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