JPH0452101Y2

JPH0452101Y2 -

Info

Publication number: JPH0452101Y2
Application number: JP1985133731U
Authority: JP
Priority date: 1985-08-30
Filing date: 1985-08-30
Publication date: 1992-12-08
Also published as: JPS6241224U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は、コンバインの燃料タンクのブリーザ
構造の改良に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of the breather structure of a fuel tank of a combine harvester.

（従来の技術）従来のコンバインの燃料タンクのブリーザ構造
は、第３図に示すようにキヤツブ状のブリーザ体
１１′から燃料タンク３′内に逆流防止用のダクト
管５′を導入していた。しかし、エンジンのメン
テナンスのためにエンジンカバーをコンバイン本
体に開閉自在に枢着し、このエンジンカバーに燃
料タンク３′を一体的に取り付けた場合には、エ
ンジンカバーの開閉に伴つて燃料が激しく揺れ、
その勢いでダクト管５′の開口７′に燃料が流れ込
んで燃料タンク３′の外に不用意に漏れるという
問題があつた。(Prior Art) The breather structure of the fuel tank of a conventional combine has a duct pipe 5' for preventing backflow introduced into the fuel tank 3' from a cap-shaped breather body 11' as shown in Fig. 3. . However, if the engine cover is pivotally attached to the combine main body so that it can be opened and closed for engine maintenance, and the fuel tank 3' is integrally attached to this engine cover, the fuel will shake violently as the engine cover opens and closes. ,
This caused a problem in that the fuel flowed into the opening 7' of the duct pipe 5' and inadvertently leaked out of the fuel tank 3'.

（考案が解決しようとする問題点）本考案は、上記の点に鑑みてなされたものであ
つて、その目的とするところは燃料タンクの静置
に近い状態ではダクト管の存在によつて燃料の漏
れを防止でき、また燃料タンクが激しく動いたと
してもダクト管の開口に燃料が流れ込むのを防止
することができるコンバインの燃料タンクのブリ
ーザ構造を提供するにある。(Problems to be solved by the invention) The present invention has been made in view of the above points, and its purpose is to prevent the fuel from flowing due to the presence of the duct pipe when the fuel tank is almost stationary. To provide a breather structure for a fuel tank of a combine, which can prevent fuel from leaking and can also prevent fuel from flowing into an opening of a duct pipe even if the fuel tank moves violently.

（問題点を解決するための手段）本考案の要旨は、開閉自在にしてコンバイン本
体１に鉛直面内で開閉自在に枢着されるエンジン
カバー２に、燃料タンク３を一体的に取り付たコ
ンバインの燃料タンクのブリーザ構造において、
燃料タンク３の上板に空気抜き孔４を設け、この
空気抜き孔４から燃料タンク３内に空気抜き用ダ
クト管５を導出し、このダクト管５を上記鉛直面
内で且つ燃料タンク３の上板６に沿つて配管する
と共に、ダクト管５の先端を上記鉛直面の側方に
曲成し、ダクト管５の先端の開口７を燃料タンク
３の側壁８に接近して成るコンバインの燃料タン
クのブリーザ構造に係るものである。(Means for Solving the Problems) The gist of the present invention is that a fuel tank 3 is integrally attached to an engine cover 2 that can be opened and closed and pivoted to a combine main body 1 in a vertical plane so that it can be opened and closed. In the breather structure of the combine fuel tank,
An air vent hole 4 is provided in the upper plate of the fuel tank 3, and an air venting duct pipe 5 is led out from the air vent hole 4 into the fuel tank 3. A breather for a fuel tank of a combine harvester is constructed by arranging piping along the vertical plane, bending the tip of the duct pipe 5 to the side of the vertical plane, and making the opening 7 at the tip of the duct pipe 5 close to the side wall 8 of the fuel tank 3. It is related to the structure.

（実施例）以下、本考案を図示の実施例に基づいて詳述す
る。(Example) Hereinafter, the present invention will be described in detail based on the illustrated example.

２はエンジンカバーであつて、第２図のように
コンバイン本体１にヒンジ９にて鉛直面内での回
転自在となるように取り付けられてある。 Reference numeral 2 denotes an engine cover, which is attached to the combine main body 1 with a hinge 9 so as to be rotatable in a vertical plane, as shown in FIG.

燃料タンク３の上板６には取り付け孔１０が穿
孔されてあり、この取り付け孔１０にブリーザ体
用の取付パイプ１２を挿着してあり、この取付パ
イプ１２内を空気抜き孔４としてある。１１は空
気孔１３を有するキヤツプ状のフリーザ体であつ
て、取付パイプ１０に嵌着してある。５はダクト
管であつて、取付パイプ１２から燃料タンク３内
に導出されてあり、このダクト管５を上記鉛直面
内で且つ燃料タンク３の上板６に沿つて配管する
と共に、ダクト管５の先端を上記鉛直面の側方に
曲成してあり（図示では略90°）、ダクト管５の先
端の開口７は燃料タンク３の側壁８に近接させて
ある。 An attachment hole 10 is bored in the upper plate 6 of the fuel tank 3, and an attachment pipe 12 for a breather body is inserted into this attachment hole 10, and the inside of this attachment pipe 12 is used as an air vent hole 4. Reference numeral 11 denotes a cap-shaped freezer body having air holes 13, which is fitted onto the mounting pipe 10. Reference numeral 5 denotes a duct pipe, which is led out from the mounting pipe 12 into the fuel tank 3. The tip of the duct pipe 5 is bent to the side of the vertical plane (approximately 90 degrees in the drawing), and the opening 7 at the tip of the duct pipe 5 is located close to the side wall 8 of the fuel tank 3.

しかしてエンジンカバー２の開閉時には、燃料
タンク３の燃料が揺れたとしても、燃料はダクト
管５の外周壁に掛かつても開口７には掛かること
はない。 Therefore, when the engine cover 2 is opened and closed, even if the fuel in the fuel tank 3 is shaken, the fuel will not be applied to the opening 7 even if it is applied to the outer circumferential wall of the duct pipe 5.

１４は給油口、１５はキヤツプ、１６はエンジ
ンである。 14 is a fuel filler port, 15 is a cap, and 16 is an engine.

（効果）本考案は、上述のように燃料タンクの上板に空
気抜き孔を設け、この空気抜き孔から燃料タンク
内に空気抜き用ダクト管を導出したので、燃料タ
ンクの静置に近い状態ではダクト管の存在によつ
て燃料の漏れを防止できるのは勿論のこと、ダク
ト管を上記鉛直面内で且つ燃料タンクの上板に沿
つて配管すると共に、ダクト管の先端を上記鉛直
面の側方に曲成したので、エンジンカバーの開閉
に伴う燃料タンク内の燃料の揺れ方向に対して側
方に逃げるようにダクト管の開口が向くこととな
り、したがつて燃料タンクが激しく動いたとして
も燃料がその勢いは専らダクト管の周壁に向けら
れることとなり、その結果ダクト管の開口に燃料
が流れ込むことがないという効果を奏する。(Effects) In this invention, as mentioned above, an air vent hole is provided in the upper plate of the fuel tank, and an air venting duct pipe is led out from this air vent hole into the fuel tank. Not only can fuel leakage be prevented by the presence of the duct pipe, but also by installing the duct pipe within the above vertical plane and along the upper plate of the fuel tank, and by placing the tip of the duct pipe on the side of the above vertical plane. Because of the curved shape, the opening of the duct pipe is oriented so that the fuel in the fuel tank sways to the side when the engine cover is opened and closed, so that even if the fuel tank moves violently, the fuel will not flow. The force is directed exclusively toward the peripheral wall of the duct pipe, resulting in the effect that fuel does not flow into the opening of the duct pipe.

しかもダクト管の先端の開口を燃料タンクの側
壁に近接したので、燃料が跳ね返つてダクト管の
開口に入ることがなくなるという効果を奏する。 Moreover, since the opening at the tip of the duct pipe is located close to the side wall of the fuel tank, there is an effect that the fuel will not bounce back and enter the opening of the duct pipe.

[Brief explanation of the drawing]

第１図ａ，ｂは本考案の実施例を示す平面図及
び破断側面図、第２図ａ，ｂは同上のエンジンカ
バーの開閉動作の説明図、第３図ａ，ｂは従来例
を示す平面図及び破断側面図である。１……コンバイン本体、２……エンジンカバ
ー、３……燃料タンク、４……空気抜き孔、５…
…ダクト管、６……上板、７……開口、８……側
壁。 Figures 1 a and b are a plan view and a cutaway side view showing an embodiment of the present invention, Figures 2 a and b are explanatory diagrams of the opening and closing operation of the same engine cover, and Figures 3 a and b are a conventional example. They are a top view and a cutaway side view. 1... Combine main body, 2... Engine cover, 3... Fuel tank, 4... Air vent hole, 5...
...Duct pipe, 6...Top plate, 7...Opening, 8...Side wall.

Claims

[Scope of utility model registration request]

In the combine fuel tank breather structure, the fuel tank is integrally attached to the engine cover, which is pivoted to the combine body in a vertical plane so that it can be opened and closed, and an air vent hole is provided in the top plate of the fuel tank. An air venting duct pipe is guided into the fuel tank from this air vent hole, and this duct pipe is piped within the vertical plane and along the upper plate of the fuel tank, and the tip of the duct pipe is connected to the side of the vertical plane. Combine fuel tank breather structure consisting of a bent opening at the tip of the duct pipe close to the side wall of the fuel tank.