JP2004231014A - Working vehicle - Google Patents

Abstract

An object of the present invention is to dispose a fuel tank, which has a relatively large capacity and avoids a muffler, in a front portion of a vehicle body.
An engine, a fuel tank, and an engine exhaust muffler are disposed in a bonnet on a traveling vehicle body in front of a cockpit, and a recess is provided in a part of the fuel tank (left front). This is a work vehicle in which the rear end of the muffler 7 is located, the upper end of a panel dash (wall) 10 provided in the cockpit is recessed rearward, and the rear end of the fuel tank 9 is stored in the recess. . By providing a muffler storage recess in a part (front left) of the fuel tank 9 and storing the rear end of the fuel tank 9 in a rear recess of the panel dash (wall) 10, there is no need to provide an auxiliary tank. Thus, a relatively large-capacity fuel tank can be obtained, and equipment costs can be reduced.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a work vehicle equipped with a traveling device for agriculture, construction, transportation, and the like, and particularly relates to a configuration of a fuel tank mounting portion thereof.
[0002]
[Prior art]
An example of the work vehicle is an agricultural tractor (hereinafter referred to as a tractor).
The tractor is mounted on a vehicle body with a drive mechanism including a pair of front and rear left and right wheels, an engine serving as a drive source for the wheels, and a transmission for shifting the engine driving force, and a driver's seat including a steering wheel is provided on the vehicle body. A work machine such as a rotary tilling device can be connected to the rear part of the vehicle body.
[0003]
There is an example in which a conventional tractor employs a configuration in which a fuel tank is disposed in a front portion of a vehicle body. In many cases, an engine is mounted in a front portion of the vehicle body. In this case, a muffler is provided behind the engine. Are disposed, but the fuel tank is disposed near the muffler.
[0004]
[Patent Document 1]
Japanese Utility Model Registration No. 259853 Publication
[Patent Document 2]
JP 2001-219751 A
[Problems to be solved by the invention]
However, in the above-mentioned conventional tractor, when the fuel tank is arranged so as to avoid the muffler, the space for the fuel tank is reduced. Therefore, in a tractor with a large horsepower, the capacity of the fuel tank becomes insufficient, and it is necessary to provide an auxiliary fuel tank to avoid this.
[0007]
Therefore, an object of the present invention is to dispose a fuel tank, which has a relatively large capacity and avoids a muffler, in a front portion of a vehicle body.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention is directed to a work vehicle in which an engine 2, a fuel tank 9 and an engine exhaust muffler 7 are arranged in a bonnet 1 on a traveling vehicle body in front of a cockpit. A), a rear end of the muffler 7 is positioned in the recess, and an upper end of a panel dash (wall) 10 provided in the cockpit is recessed rearward. This is a working vehicle that houses the rear end.
[0009]
According to the first aspect of the present invention, a recess is provided in a part (front left) of the fuel tank 9, the rear end of the muffler 7 is located in the recess, and the upper end of the panel dash (wall) 10. By storing the rear end of the fuel tank 9 in the rear concave portion, a large capacity of the fuel tank 9 can be secured even with a tractor having a large horsepower.
[0010]
According to the second aspect of the present invention, the bottom surface of the fuel tank 9 is formed with a bent portion directed forward and upward from the center, and the support stay 12 is brought into contact with the bent portion to move the fuel tank 9 on the vehicle body. The fuel tank 9 is supported by a hood stay 17 provided on the front side of the fuel tank 9, and is hung forward from the side of the fuel tank 9, and is attracted and fixed to the panel dash 10 by a fixing rod 14 having a base supported by the panel dash 10. The work vehicle according to claim 1, wherein a heat shield plate 16 is provided in front of and below the hood, and the heat shield plate 16 is fixed to a hood stay 17 which is a hood opening / closing fulcrum frame.
[0011]
According to the second aspect of the present invention, the fuel tank 9 is supported on the body side by contacting the support stay 12 with a rising portion which rises from the center toward the front and upward, thereby supporting the fuel tank 9 on the body side. A heat shield plate 16 is provided in front of and below 9 to prevent heat radiation from the engine from reaching the fuel tank 9.
[0012]
【The invention's effect】
According to the first aspect of the present invention, a concave portion for muffler storage is provided in a part (front left) of the fuel tank 9, and a rear end portion of the fuel tank 9 is stored in a rear concave portion of the panel dash (wall) 10. By doing so, a relatively large-capacity fuel tank can be obtained without providing an auxiliary tank, and equipment costs can be reduced.
[0013]
According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the heat shield plate 16 prevents heat radiation from the engine from hitting the fuel tank 9, and the support stay 12 vibrates the fuel tank 9. Can be prevented.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to an agricultural tractor (hereinafter, referred to as a tractor), which is an example of a work vehicle. In the following description of the illustrated example, the front or rear will be referred to as the side on which the steering wheel is disposed, and the opposite side, that is, the side on which the engine 2 is disposed. When referring to the right or left, the right hand side is referred to as right and the left hand side is referred to as left when viewed from a worker standing at the rear of the body with the front side of the body as the front side.
[0015]
FIG. 1 is a side view of a main part in a hood 1 at a front part of a tractor body, FIG. 2 is a plan view of a main part inside a hood 1 of a front part of a tractor body, and FIG. 3 is a fuel tank installation part of FIG. FIG.
[0016]
The engine 2 is mounted inside the hood 1 at the front of the body of the tractor, and power is transmitted from the engine 2 to a clutch housing, a transmission case, and the like (not shown). A blower fan 3 and a radiator 5 are arranged on the front side of the engine 2 inside the hood 1. A battery 6 is often arranged in front of the radiator 5 or the like. The muffler 7 is arranged near the engine 2.
[0017]
In this embodiment, the fuel tank 9 is arranged rearward in the bonnet 1, but a recess is provided in a part (front left) of the fuel tank 9 and the rear end of the muffler 7 is located in the recess. Further, the upper end of the panel dash (wall) 10 is recessed rearward, and the rear end of the fuel tank 9 is housed in this recess, so that even a tractor with a large horsepower can increase the capacity of the large fuel tank 9. Secured. Thus, there is no need to provide an auxiliary tank, and the equipment cost can be reduced.
[0018]
Further, the fuel tank 9 is positioned in the recess of the panel dash 10 by the boss 9a around the fuel outlet provided on the bottom surface of the fuel tank 9. The bottom surface of the fuel tank 9 is configured to rise upward from the center to the front, and the support stay 12 is brought into contact with the rising portion to support the fuel tank 9 on the machine body side. At this time, if the elastic body 13 such as a sponge shown in FIG. 4 is arranged on the upper surface of the support stay 12 and the elastic body 13 is pressed on the bottom side of the rising portion of the fuel tank 9, the fuel tank 9 Vibration is suppressed.
[0019]
The fuel tank 9 is fixed to the panel dash 10 by a fixing rod 14 so as not to fall forward. In this way, the fuel tank 9 is supported by the recess of the panel dash 10 and the support stay 12, and is fixed by the fixing rod 14. Further, a heat shield plate 16 for blocking hot air in the engine room is provided in front of and below the fuel tank 9, and the heat shield plate 16 is attached to a hood stay (hood opening / closing fulcrum frame) 17 via a mounting plate 18. It is stuck.
[0020]
Conventionally, the heat shield plate 16 has been fixed together with the fuel tank 9 on the cockpit floor side or the bonnet 1 side. However, the fuel tank 9 having a sufficient capacity can be provided by arranging the fuel tank 9 on the cockpit floor side and the heat shield plate 16 on the hood stay 17 side by the configuration shown in FIGS. Can be arranged.
[0021]
As shown in the side view of the main part of FIG. 5, a small tractor is applied to a fuel tank 9 'by eliminating the convex portion in front of the fuel tank 9 shown in FIG.
[0022]
The embodiment shown in FIG. 6 is a left side view of the main portion of the bonnet 1 and the fuel tank 9 arrangement portion, and FIG. 7 is a plan view thereof (with the cover 24 removed). A mounting hole for the holder member 21 provided on the bracket member 19 is configured such that a rotation fulcrum (axis in the left-right direction) 20 is placed on the bracket member 19 welded to the upper surface, and the rotation fulcrum 20 is pressed and fixed by the holder member 21. 21a is a long hole, and the bonnet 1 can be adjusted in the front-rear direction using the mounting hole 21a.
[0023]
Thus, the mounting position of the bonnet 1 can be easily adjusted, and the appearance quality is stabilized. In addition, a vibration damping structure can be provided by inserting the buffer member 22 between the bracket member 19 and the holder member 21 and the rotation fulcrum 20.
[0024]
An oil receiving cover 24 having an oil receiving groove 24a is provided around an oil inlet 9b of the fuel tank.
[Brief description of the drawings]
FIG. 1 is a side view of a main part in a hood of a front part of a tractor body according to an embodiment of the present invention.
FIG. 2 is a plan view of a main part in a hood at a front part of the tractor shown in FIG. 1;
FIG. 3 is an enlarged side view of a fuel tank installation portion of the tractor of FIG.
FIG. 4 is a perspective view of a support stay portion of the fuel tank of FIG. 2;
FIG. 5 is an enlarged side view of a fuel tank installation portion of the tractor of FIG.
FIG. 6 is a left side view of a main part of a bonnet and a fuel tank disposition portion according to the embodiment of the present invention.
FIG. 7 is a plan view of a main part of a fuel tank disposition portion of FIG. 6;
[Explanation of symbols]
Reference Signs List 1 bonnet 2 engine 3 blower fan 5 radiator 6 battery 7 muffler 9 fuel tank 9a boss 9b lubrication port 10 panel dash (wall)
DESCRIPTION OF SYMBOLS 12 Support stay 13 Elastic body 14 Fixing rod 16 Heat shield 17 Food stay 18 Mounting plate 19 Bracket member 20 Rotating fulcrum 21 Holder member 21a Mounting hole 22 Buffer member 24 Cover 24a Oil receiving groove

Claims (2)

In a working vehicle in which an engine 2, a fuel tank 9 and an engine exhaust muffler 7 are arranged in a hood 1 on a running body in front of a cockpit,
A recess is provided in a part of the fuel tank 9, the rear end of the muffler 7 is positioned in the recess, and the upper end of the panel dash 10 provided in the cockpit is recessed rearward. A working vehicle, wherein a rear end of the vehicle is stored. The bottom surface of the fuel tank 9 is formed with a bent portion directed forward and upward from the center. The support stay 12 is brought into contact with the bent portion to support the fuel tank 9 on a hood stay 17 provided on the vehicle body.
A fuel rod 9 is extended from the side to the front, and is attracted and fixed to the panel dash 10 by a fixing rod 14 having a base supported by the panel dash 10,
The work vehicle according to claim 1, wherein heat shield plates (16) are provided in front of and below the fuel tank (9), and the heat shield plates (16) are fixed to a hood stay (17) serving as a hood opening / closing fulcrum frame.

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