JP6238733B2 - Work vehicle - Google Patents

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JP6238733B2
JP6238733B2 JP2013269072A JP2013269072A JP6238733B2 JP 6238733 B2 JP6238733 B2 JP 6238733B2 JP 2013269072 A JP2013269072 A JP 2013269072A JP 2013269072 A JP2013269072 A JP 2013269072A JP 6238733 B2 JP6238733 B2 JP 6238733B2
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exhaust
respect
exhaust pipe
side cover
tip
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JP2015124673A (en
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英知 渡部
英知 渡部
賢志郎 薬師寺
賢志郎 薬師寺
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Mitsubishi Mahindra Agricultural Machinery Co Ltd
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Description

本発明は、トラクタ等の作業車輌に係り、詳しくは、エンジンを覆うサイドカバーに排気孔を設けた作業車輌に関する。   The present invention relates to a working vehicle such as a tractor, and more particularly to a working vehicle in which an exhaust hole is provided in a side cover that covers an engine.

従来、エンジンのエギゾーストマニホールドにマフラーを取付けて消音すると共に、該マフラーのアウトレットパイプをボンネットのサイドカバーに形成した排気孔に向けて配索し、エンジンの排気ガスを該排気孔から機外へと排出するトラクタが提案されている（特許文献１参照）。   Conventionally, a muffler is attached to the exhaust manifold of the engine to mute it, and the outlet pipe of the muffler is routed toward the exhaust hole formed in the side cover of the bonnet, and the exhaust gas of the engine is exhausted from the exhaust hole to the outside of the machine. A tractor for discharging has been proposed (see Patent Document 1).

特開２００５−１０５８５３号公報JP 2005-105853 A

トラクタは、安全上、サイドカバーからアウトレットパイプ（排気管）を突出して設けることは好ましくなく、上記特許文献１記載のものは、アウトレットパイプの先端にパイプ状の導風管を取付けて、該導風管をサイドカバーから突出又は面一にして設けている。しかしながら、該トラクタは、導風管から排出された排気ガスに水蒸気や煤を含み、サイドカバーに黒色の汚れとして霧状もしくは液状に付着することがあった。   For safety reasons, it is not preferable that the tractor is provided with an outlet pipe (exhaust pipe) protruding from the side cover. In the tractor described in Patent Document 1, a pipe-shaped air guide pipe is attached to the tip of the outlet pipe, and The wind pipe is provided so as to protrude or be flush with the side cover. However, the tractor sometimes includes water vapor or soot in the exhaust gas discharged from the air duct, and may adhere to the side cover in the form of mist or liquid as black dirt.

そこで、本発明は、サイドカバーにエンジン排気の汚れが付着することを防止した作業車輌を提供することを目的とする。   Therefore, an object of the present invention is to provide a working vehicle that prevents the engine exhaust from being adhered to the side cover.

本発明の作業車輌（１）は、エンジンを、上方側のボンネットフード（１０）と、左右のサイドカバー（１１Ｌ，１１Ｒ）と、前方のフロントグリル（１２）と、によって覆った作業車輌（１）において、
前記エンジンの排気管（１５）を、前記サイドカバー（１１Ｌ）に垂直な方向に対して傾斜した排気方向（Ｃ）に延びて前記サイドカバー（１１Ｌ）に形成した排気孔（１６）に対向し、かつ前記排気管（１５）の先端（１５ａ）が前記排気孔（１６）の周縁部（１１ａ）と略面一となるように配置し、
前記サイドカバー（１１Ｌ）の前記排気孔（１６）の前記周縁部（１１ａ）に、前記排気管（１５）と所定空隙を有するように煤付着防止部材（１７）を設け、
前記煤付着防止部材（１７）は、黒色からなると共に、前記サイドカバー（１１Ｌ）に対して機体外側に突出する鍔部（１７ｂ）を有し、
前記鍔部（１７ｂ）は、前記サイドカバー（１１Ｌ）に垂直な方向から視た場合に前記排気管（１５）の前記先端（１５ａ）に対して前記排気方向（Ｃ）に位置する部分（１９）が、前記排気管（１５）の前記先端（１５ａ）に対して前記排気方向の反対側（Ｄ）に位置する部分（２１）に比べて、前記排気孔（１６）の前記周縁部（１１ａ）に対して機体外側に高く突出するように形成されてなる、
ことを特徴とする。 Working vehicle of the present invention (1), the engine, the upper side of the hood (10), and side covers (11L, 11R), the working vehicle was Tsu covered by the front of the front grill (12), ( In 1)
The exhaust pipe (15) of the engine extends in an exhaust direction (C) inclined with respect to a direction perpendicular to the side cover (11L) and faces an exhaust hole (16) formed in the side cover (11L). And the tip (15a) of the exhaust pipe (15) is arranged so as to be substantially flush with the peripheral edge (11a) of the exhaust hole (16),
Wherein the peripheral edge of the exhaust hole (16) of the side cover (11L) to (11a), provided with a soot preventing member (17) so as to have the exhaust pipe (15) a predetermined gap,
The wrinkle adhesion preventing member (17) is made of black and has a flange (17b) that protrudes outward from the machine body with respect to the side cover (11L) .
The flange (17b) is a portion (19) positioned in the exhaust direction (C) with respect to the tip (15a) of the exhaust pipe (15) when viewed from a direction perpendicular to the side cover (11L). ) Compared to the portion (21) located on the opposite side (D) of the exhaust direction with respect to the tip (15a) of the exhaust pipe (15), the peripheral portion (11a) of the exhaust hole (16). ) Is formed so as to protrude to the outside of the fuselage .
It is characterized by that.

例えば図１及び図７を参照して、前記ボンネットフード（１０）の後方に配置された運転操作部（７）を備え、
前記排気管（１５）は、前記排気方向（Ｃ）が前記サイドカバー（１１Ｌ）に垂直な方向に対して機体前方側に傾斜した方向となるように配置され、
前記鍔部（１７ｂ）は、少なくとも前記排気管（１５）の前記先端（１５ａ）に対して前方に位置する部分（１９）及び下方に位置する部分（２２）が、前記排気管（１５）の前記先端（１５ａ）に対して後方に位置する部分（２１）に比べて、前記排気孔（１６）の前記周縁部（１１ａ）に対して機体外側に高く突出するように形成されてなる。 For example, with reference to FIG.1 and FIG.7 , the driving operation part (7) arranged behind the bonnet hood (10) is provided,
The exhaust pipe (15) is arranged so that the exhaust direction (C) is inclined to the front side of the fuselage with respect to the direction perpendicular to the side cover (11L),
The flange portion (17b) has at least a portion (19) positioned forward and a portion (22) positioned below the tip (15a) of the exhaust pipe (15) of the exhaust pipe (15). Compared to the portion (21) located rearward with respect to the tip (15a), the exhaust hole (16) is formed so as to protrude higher toward the outer side of the peripheral portion (11a) .

例えば図４及び図７を参照して、前記煤付着防止部材（１７）は、前記鍔部（１７ｂ）から機体内側に突出し、前記鍔部（１７ｂ）との間に前記周縁部（１１ａ）に係合するＵ字溝（１７ａ）を形成する突出部を有する可撓性の部材からなり、
前記突出部は、前記排気管（１５）の前記先端（１５ａ）に対する前記排気方向（Ｃ）の反対側を切欠かれた形状からなる。 For example, referring to FIG . 4 and FIG. 7 , the wrinkle adhesion preventing member (17) protrudes from the flange portion (17b) to the inside of the machine body and is formed between the flange portion (17b) and the peripheral portion (11a). It consists of a flexible member having a protrusion that forms a U-shaped groove (17a) to be engaged ,
The protruding portion has a shape in which the opposite side of the exhaust direction (C) with respect to the tip (15a) of the exhaust pipe (15) is cut out .

なお、上述カッコ内の符号は、図面と対照するためのものであるが、何ら本発明の構成を限定するものではない。   In addition, although the code | symbol in the said parenthesis is for contrast with drawing, it does not limit the structure of this invention at all.

請求項１に係る本発明は、煤付着防止部材がサイドカバーに対して機体外側に突出する鍔部を有するので、排気管から排出される煤を含む排気ガスは、まず鍔部に当たって、サイドカバーが排気ガスの煤で汚れることを防止することができる。また、煤付着防止部材は黒色からなるので、鍔部が排気ガスの煤で汚れたとしても目立たず意匠性が良い。   According to the first aspect of the present invention, since the soot adhesion preventing member has the soot portion protruding to the outside of the fuselage with respect to the side cover, the exhaust gas containing soot discharged from the exhaust pipe first hits the soot portion, and the side cover Can be prevented from being polluted with exhaust gas. Moreover, since the soot adhesion preventing member is made of black, even if the soot portion is stained with exhaust gas soot, it is inconspicuous and has good design.

請求項２に係る本発明は、鍔部の少なくとも前記排気管の排気方向側及び下部側が、排気方向の反対方向側に対して高く突出するので、例えば排気管から霧状の煤を含んだ排気ガスが排出される場合、又はより水分を多く含み煤が液だれとなって下方に排出される場合に、より確実にサイドカバーへの煤汚れを防止することができる。   According to the second aspect of the present invention, at least the exhaust direction side and the lower side of the exhaust pipe protrude higher than the opposite direction side of the exhaust direction, so that, for example, exhaust gas containing mist-like soot from the exhaust pipe When gas is discharged or when more moisture is contained and the soot is drained and discharged downward, the side cover can be more reliably prevented from becoming dirty.

また、請求項１に係る本発明は、排気管の先端が排気孔と略面一となるように配置されるので、確実に機体外方に排気ガスを排出し、ボンネット内の部品に温度上昇や汚れ等により不具合が発生することを防止することができる。 Further, according to the first aspect of the present invention, since the tip of the exhaust pipe is disposed so as to be substantially flush with the exhaust hole, the exhaust gas is surely discharged outward from the fuselage, and the temperature inside the components in the bonnet rises. It is possible to prevent problems from occurring due to dirt or dirt.

請求項３に係る本発明は、煤付着防止部材がＵ字溝を有するので、サイドカバーの排気孔の周縁部にＵ字溝を係合させて、工具や他の部品を用いることなく煤付着防止部材をサイドカバーに取付けることができる。 According to the third aspect of the present invention, the wrinkle adhesion preventing member has a U-shaped groove, so that the U-shaped groove is engaged with the peripheral edge of the exhaust hole of the side cover, and the wrinkle adheres without using tools or other parts. The prevention member can be attached to the side cover.

本実施の形態に係るトラクタを示す全体斜視図。The whole perspective view which shows the tractor which concerns on this Embodiment. 本実施の形態に係るトラクタを示す全体側面図。The whole side view which shows the tractor which concerns on this Embodiment. トラクタのサイドカバーを示す斜視図。The perspective view which shows the side cover of a tractor. 図２のＡ−Ａ断面図。AA sectional drawing of FIG. 図２のＢ−Ｂ断面図。BB sectional drawing of FIG. 煤付着防止部材のサイドカバーへの取付けを示す斜視図。The perspective view which shows the attachment to the side cover of a wrinkle adhesion prevention member. 煤付着防止部材を示し、（ａ）は機体外側から視た側面図、（ｂ）は機体内側から視た側面図、（ｃ）は平面図、（ｄ）は底面図、（ｅ）は正面図、（ｆ）は背面図。2 shows a wrinkle adhesion preventing member, (a) is a side view seen from the outside of the fuselage, (b) is a side view seen from the inside of the fuselage, (c) is a plan view, (d) is a bottom view, and (e) is a front view. (F) is a rear view. 煤付着防止部材を示し、（ａ）は機体正面側から視た斜視図、（ｂ）は機体背面側から視た斜視図。The haze adhesion prevention member is shown, (a) is the perspective view seen from the body front side, (b) is the perspective view seen from the body back side.

以下、図面に沿って、本発明の実施の形態について説明する。本実施の形態のトラクタ１（作業車輌）は、図１及び図２に示すように、前輪及び後輪（不図示）により支持される走行機体２と、該走行機体２の後部に昇降自在に連結されたロータリ耕耘装置等の作業機（不図示）と、を備え、上記走行機体２を前進走行させながら、作業機によって耕耘作業等の各種作業を行なう。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the tractor 1 (working vehicle) according to the present embodiment is capable of moving up and down to a traveling machine body 2 supported by front wheels and rear wheels (not shown) and to the rear part of the traveling machine body 2. A working machine (not shown) such as a rotary tillage device connected thereto is used, and various works such as a tilling work are performed by the working machine while the traveling machine body 2 is moved forward.

上記走行機体２は、前後方向に延びる金属製の車台３を備えており、該車台３の前部に取付けられて、ディーゼルエンジンからなる不図示のエンジンを覆うボンネット６と、該ボンネット６の後方に配置される運転操作部７と、を有している。上記ボンネット６と上記運転操作部７との間には、上記車台３から立接される機枠９が配置されている。   The traveling machine body 2 includes a metal chassis 3 extending in the front-rear direction. The hood 6 is attached to a front portion of the chassis 3 and covers an unillustrated engine made of a diesel engine, and the rear of the hood 6. And a driving operation unit 7 disposed in the. Between the bonnet 6 and the driving operation unit 7, a machine frame 9 standing from the chassis 3 is arranged.

上記ボンネット６は、エンジンの上方側を覆うボンネットフード１０と、左右のサイドカバー１１Ｌ，１１Ｒと、前方を覆うフロントグリル１２と、からなり、上記ボンネットフード１０は、その後側において上記機枠９に枢支されて開閉自在に、かつ閉じた状態で固定自在となっている。   The bonnet 6 includes a hood hood 10 that covers the upper side of the engine, left and right side covers 11L and 11R, and a front grill 12 that covers the front, and the hood hood 10 is attached to the machine casing 9 on the rear side. It is pivotally supported and can be opened and closed, and can be fixed in a closed state.

機体進行方向左側の上記サイドカバー１１Ｌには、図３に示すように、冷却ファン（不図示）によって吸気されたエンジンの冷却風を排出する排気口１３が形成されていると共に、該排気口１３の前下方に、エンジンの排気管１５からの排気ガスを排出する楕円形状の排気孔１６が形成されている。上記サイドカバー１１Ｌの上記排気孔１６の周囲には、機体外方へやや湾曲して盛り上がる盛り上がり部１４が形成されている。上記排気管１５の先端面１５ａ（先端）は、図４及び図５に示すように、上記排気孔１６に対向配置されると共に、上記排気孔１６に略面一となるように形成されており、機体外方に排気ガスを排出するようになっている。これにより、ボンネット６内に排気ガスが排出されて、ボンネット内の部品に温度上昇や煤の汚れ等により不具合が発生することが防止できる。   As shown in FIG. 3, the side cover 11 </ b> L on the left side in the aircraft traveling direction is formed with an exhaust port 13 for discharging engine cooling air taken in by a cooling fan (not shown), and the exhaust port 13. Is formed with an elliptical exhaust hole 16 for exhausting exhaust gas from the exhaust pipe 15 of the engine. A raised portion 14 is formed around the exhaust hole 16 of the side cover 11L so as to be slightly curved outward. As shown in FIGS. 4 and 5, the distal end surface 15 a (the distal end) of the exhaust pipe 15 is disposed so as to face the exhaust hole 16 and is substantially flush with the exhaust hole 16. The exhaust gas is discharged outside the aircraft. As a result, exhaust gas is discharged into the bonnet 6, and it is possible to prevent a problem from occurring due to temperature rise, fouling, etc., in the components in the bonnet.

上記サイドカバー１１Ｌの、上記排気孔１６の周縁部１１ａには、上記排気管１５と所定空隙を有するように、上記排気孔１６の楕円形状に対応した略楕円形状の煤付着防止部材１７が取付けられている。該煤付着防止部材１７は、黒色かつ耐熱性及び可撓性を有するシリコンゴムからなると共に、上記周縁部１１ａに係合するＵ字溝１７ａを有している。すなわち、上記煤付着防止部材１７は、グロメット状となっており、上記Ｕ字溝１７ａを上記周縁部１１ａに係合することで、他に工具や部材を用いることなくサイドカバー１１Ｌに取付けることができ、組み付け性が良い。   A substantially oval soot adhesion preventing member 17 corresponding to the oval shape of the exhaust hole 16 is attached to the peripheral edge portion 11a of the exhaust hole 16 of the side cover 11L so as to have a predetermined gap with the exhaust pipe 15. It has been. The wrinkle adhesion preventing member 17 is made of silicon rubber that is black and has heat resistance and flexibility, and has a U-shaped groove 17a that engages with the peripheral edge portion 11a. That is, the wrinkle adhesion preventing member 17 has a grommet shape and can be attached to the side cover 11L without using any other tools or members by engaging the U-shaped groove 17a with the peripheral edge portion 11a. Can be assembled easily.

上記煤付着防止部材１７は、図６ないし図８に示すように、上記サイドカバー１１Ｌに対して機体外側に所定の厚みｄを有して形成されており、該厚みｄに加えて、更に上記サイドカバー１１Ｌに対して機体外側に突出する鍔部１７ｂを有している。ところで、上記排気管１５は、上記排気孔１６に向けて、機体進行方向に対して約３０度左側に傾いて延びており、すなわち上記排気管１５の排気方向Ｃは、機体前方側となっている（図７参照）。これは、ボンネット６に対して機体後方側に着座する作業者へ直接熱風となる排気ガスが当たることを防止するためである。   As shown in FIGS. 6 to 8, the wrinkle adhesion preventing member 17 is formed to have a predetermined thickness d on the outer side of the machine body with respect to the side cover 11L. It has a flange portion 17b that protrudes outward from the machine body with respect to the side cover 11L. By the way, the exhaust pipe 15 extends toward the exhaust hole 16 while being inclined about 30 degrees to the left with respect to the airframe traveling direction, that is, the exhaust direction C of the exhaust pipe 15 is the front side of the airframe. (See FIG. 7). This is to prevent the exhaust gas, which becomes hot air, from directly hitting the operator sitting on the rear side of the machine body with respect to the bonnet 6.

上記鍔部１７ｂは、上記煤付着防止部材１７の円周全体に形成されているが、便宜的に鍔部が形成される方向に基づいて、前側鍔部１９，上側鍔部２０，後側鍔部２１，下側鍔部２２と分けて呼称することとする。上記前側鍔部１９，上側鍔部２０及び下側鍔部２２は、略同じ高さから形成されているが、上側鍔部２０又は下側鍔部２２から機体後方側、すなわち上記排気方向Ｃの反対方向Ｄに向かうにしたがってその高さが低くなるように形成されている。つまり、上記排気方向Ｃに形成された前側鍔部１９の高さｅ（又は上側鍔部２０，下側鍔部２２の高さ）は、上記反対方向Ｄに形成された後側鍔部２１の高さｆよりも高く突出して形成されている。また、上記Ｕ字溝１７ａは、図７（ｂ）及び図８に示すように、上記反対方向Ｄ側のみ切欠かれており、上記鍔部１７ｂが上記反対方向Ｄ側は低く形成されることと相俟って、材料費を抑えてコストダウンすることができる。   The flange portion 17b is formed on the entire circumference of the flange adhesion preventing member 17, but for the sake of convenience, the front flange portion 19, the upper flange portion 20, and the rear flange portion are formed based on the direction in which the flange portion is formed. The parts 21 and the lower collar part 22 will be referred to separately. The front collar 19, the upper collar 20, and the lower collar 22 are formed from substantially the same height, but from the upper collar 20 or the lower collar 22 to the rear side of the machine body, that is, in the exhaust direction C. It is formed so that its height decreases as it goes in the opposite direction D. That is, the height e (or the height of the upper flange 20 and the lower flange 22) of the front flange 19 formed in the exhaust direction C is the same as that of the rear flange 21 formed in the opposite direction D. It is formed to protrude higher than the height f. Further, as shown in FIGS. 7B and 8, the U-shaped groove 17a is notched only in the opposite direction D side, and the flange portion 17b is formed low in the opposite direction D side. Together, the material cost can be reduced and the cost can be reduced.

本実施の形態は、以上のような構成からなるので、作業者は、トラクタ１のエンジンを始動して、耕耘等の作業を開始する。エンジンを点火すると、燃料の燃焼に伴って、排気管１５から排気ガスが排出される。該排気ガス中には、煤や、燃料中の水素成分と空気中の酸素が反応して生成される水分（水蒸気）が含有している。そして、水分と煤が結びついて黒色の霧状となって排気される場合があるが、排気管１５から排出された該黒色の霧は、高さの高い排気方向Ｃ側に形成された前側鍔部１９に付着する。   Since the present embodiment is configured as described above, the worker starts the engine of the tractor 1 and starts work such as tilling. When the engine is ignited, exhaust gas is discharged from the exhaust pipe 15 as the fuel burns. The exhaust gas contains soot and moisture (water vapor) generated by a reaction between a hydrogen component in the fuel and oxygen in the air. In some cases, moisture and soot are combined to form a black mist and exhausted. The black mist discharged from the exhaust pipe 15 is a front side soot formed on the high exhaust direction C side. It adheres to the part 19.

これにより、前側鍔部１９には、黒色の煤汚れが付着するが、サイドカバー１１Ｌが煤で汚れることを防止することができる。また、前側鍔部１９は黒色からなるので、たとえ該前側鍔部１９や煤付着防止部材１７の他の部分が煤で汚れたとしても、汚れが目立たず意匠性が良い。   Thereby, although black wrinkle dirt adheres to the front side collar part 19, it can prevent that the side cover 11L becomes fouled. Moreover, since the front side collar part 19 is made of black, even if the front side collar part 19 and other parts of the wrinkle adhesion preventing member 17 are soiled with scissors, the dirt is not noticeable and the design is good.

また、特にエンジン始動時には、排気管１５に水分が結露し、該水分が煤を含有して黒色の液だれとなって、排気管１５から下方に垂れてしまうことがある。この場合、該黒色の液だれは、排気管１５から高さの高い下側鍔部２２に付着する。下側鍔部２２に付着した黒色の液だれは、多くの場合、排気ガスの熱で水分が蒸発し、煤だけが残って、機外に霧散するか、該下側鍔部２２に固着する。これにより、サイドカバー１１Ｌが煤で汚れることを防止することができる。   In particular, when the engine is started, moisture condenses on the exhaust pipe 15, and the moisture may contain soot and become black liquid dripping down from the exhaust pipe 15. In this case, the black liquid dripping adheres from the exhaust pipe 15 to the lower flange 22 having a high height. In many cases, the black liquid dripping adhering to the lower heel part 22 evaporates the moisture due to the heat of the exhaust gas, and only the mist remains, and is sprayed out of the apparatus or fixed to the lower heel part 22. . Thereby, it is possible to prevent the side cover 11L from being soiled with scissors.

なお、本実施の形態では、前側鍔部１９，上側鍔部２０及び下側鍔部２２を、後側鍔部２１に対して高く突出して形成したが、排気方向に排出される黒色の霧及び下方に排出される黒色の液だれがサイドカバー１１Ｌに付着しないように、該排気方向及び下部側の鍔部を高く形成すれば、他の方向の鍔部の高さについては限定しない。また、排気方向及び下部側のみ鍔部を形成するようにしてもよい。   In the present embodiment, the front collar part 19, the upper collar part 20, and the lower collar part 22 are formed so as to protrude higher than the rear collar part 21, but the black mist discharged in the exhaust direction and The height of the flange in the other direction is not limited as long as the flange in the exhaust direction and the lower side is formed high so that the black liquid drained downward does not adhere to the side cover 11L. Further, the flange portion may be formed only in the exhaust direction and the lower side.

また、下側鍔部２２に付着した黒色の液だれが、該下側鍔部２２から漏下しないように、該下側鍔部２２に窪部や傾きを設けて形成してもよい。   Further, the lower brim part 22 may be formed with a recess or an inclination so that the black liquid dripping attached to the lower brim part 22 does not leak from the lower brim part 22.

また、本実施の形態でいう排気方向は、黒色の霧が排出される範囲全てを含み、また下側鍔部２２の範囲は、黒色の液だれを受ける全ての範囲を含む。   Further, the exhaust direction as used in the present embodiment includes the entire range in which the black mist is discharged, and the range of the lower flange portion 22 includes all the ranges that receive the black dripping.

また、本発明はトラクタに限らず、田植機等の他の作業車輌に対しても適応可能である。   Moreover, this invention is applicable not only to a tractor but other working vehicles, such as a rice transplanter.

１ トラクタ（作業車輌）
１０ ボンネットフード
１１ａ 周縁部
１１Ｌ，１１Ｒ サイドカバー
１２ フロントグリル
１５ 排気管
１５ａ 先端面（先端）
１６ 排気孔
１７ 煤付着防止部材
１７ａ Ｕ字溝
１７ｂ 鍔部
Ｃ 排気方向
Ｄ 反対方向

1 Tractor (work vehicle)
DESCRIPTION OF SYMBOLS 10 Bonnet hood 11a Peripheral part 11L, 11R Side cover 12 Front grille 15 Exhaust pipe 15a Tip surface (tip)
16 Exhaust hole 17 煤 adhesion preventing member 17a U-shaped groove 17b ridge C C exhaust direction D opposite direction

Claims (3)

エンジンを、上方側のボンネットフードと、左右のサイドカバーと、前方のフロントグリルと、によって覆った作業車輌において、
前記エンジンの排気管を、前記サイドカバーに垂直な方向に対して傾斜した排気方向に延びて前記サイドカバーに形成した排気孔に対向し、かつ前記排気管の先端が前記排気孔の周縁部と略面一となるように配置し、
前記サイドカバーの前記排気孔の前記周縁部に、前記排気管と所定空隙を有するように煤付着防止部材を設け、
前記煤付着防止部材は、黒色からなると共に、前記サイドカバーに対して機体外側に突出する鍔部を有し、
前記鍔部は、前記サイドカバーに垂直な方向から視た場合に前記排気管の前記先端に対して前記排気方向に位置する部分が、前記排気管の前記先端に対して前記排気方向の反対側に位置する部分に比べて、前記排気孔の前記周縁部に対して機体外側に高く突出するように形成されてなる、
ことを特徴とする作業車輌。 An engine, the upper side of the hood, and the left and right side covers, the working vehicle that Tsu covered by the front of the front grill,
The exhaust pipe of the engine extends in an exhaust direction inclined with respect to a direction perpendicular to the side cover and faces an exhaust hole formed in the side cover, and a tip of the exhaust pipe is connected to a peripheral portion of the exhaust hole. Arrange them so that they are almost flush,
The periphery of the exhaust hole of the side cover is provided with a soot preventing member so as to have the exhaust pipe with a predetermined gap,
The wrinkle adhesion preventing member is made of black and has a flange portion that protrudes outside the machine body with respect to the side cover ,
The flange portion has a portion positioned in the exhaust direction with respect to the tip of the exhaust pipe when viewed from a direction perpendicular to the side cover, and is opposite to the exhaust direction with respect to the tip of the exhaust pipe. Compared to the portion located in the exhaust hole, it is formed so as to protrude higher toward the outside of the fuselage with respect to the peripheral edge of the exhaust hole .
A working vehicle characterized by that. 前記ボンネットフードの後方に配置された運転操作部を備え、
前記排気管は、前記排気方向が前記サイドカバーに垂直な方向に対して機体前方側に傾斜した方向となるように配置され、
前記鍔部は、少なくとも前記排気管の前記先端に対して前方に位置する部分及び下方に位置する部分が、前記排気管の前記先端に対して後方に位置する部分に比べて、前記排気孔の前記周縁部に対して機体外側に高く突出するように形成されてなる、
請求項１記載の作業車輌。 A driving operation unit arranged behind the hood hood,
The exhaust pipe is arranged so that the exhaust direction is inclined to the front side of the aircraft with respect to the direction perpendicular to the side cover,
The flange portion has at least a portion positioned forward with respect to the tip of the exhaust pipe and a portion positioned below with respect to the tip of the exhaust pipe as compared with a portion positioned rearward with respect to the tip of the exhaust pipe. It is formed so as to protrude to the outside of the fuselage with respect to the peripheral edge ,
The working vehicle according to claim 1. 前記煤付着防止部材は、前記鍔部から機体内側に突出し、前記鍔部との間に前記周縁部に係合するＵ字溝を形成する突出部を有する可撓性の部材からなり、
前記突出部は、前記排気管の前記先端に対する前記排気方向の反対側を切欠かれた形状からなる、
請求項１又は２記載の作業車輌。 The wrinkle adhesion preventing member is a flexible member that protrudes from the flange to the inside of the machine body and has a protrusion that forms a U-shaped groove that engages with the peripheral edge between the flange and the flange .
The projecting portion has a shape that is notched on the opposite side of the exhaust direction with respect to the tip of the exhaust pipe .
The work vehicle according to claim 1 or 2 .
JP2013269072A 2013-12-26 2013-12-26 Work vehicle Expired - Fee Related JP6238733B2 (en)

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JP2003063332A (en) * 2001-08-22 2003-03-05 Honda Motor Co Ltd Exhaust structure of fuel cell powered vehicle
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