JPH0516681A - Working vehicle - Google Patents

Abstract

PURPOSE:To install a fuel tank having a desired capacity required for a working vehicle without enlarging the body of the vehicle and also to enhance the stability of running of the working vehicle by lowering the center of gravity of the vehicle body. CONSTITUTION:A fuel tank 9 is mounted on one side of a transmission case 6 in such a manner as surrounding an axle 8 projecting from the transmission case 6, and one part of the fuel tank 9 is put in the recessed space of a wheel 2A mounted to the axle 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work vehicle such as a tractor and a lawn mower, and more particularly to improvement of a fuel tank arrangement structure.

[0002]

2. Description of the Related Art A fuel tank in a work vehicle such as a tractor or a lawn mower is generally mounted inside the engine bonnet or in the rear part of a driver's seat with a dedicated installation space for the tank (Kaikaihei 3-8023). Gazette, Japanese Utility Model Laid-Open No. 57-33532).

[0003]

Generally, it is required to have a large capacity as much as possible in order to avoid refueling in a fuel tank of a work vehicle. However, forming the installation space dedicated to the tank as in the conventional method tends to cause the size of the aircraft to be large, and since it has been conventionally mounted at a relatively high position on the aircraft frame, it is also disadvantageous in the stability of the aircraft. There was a chance Further, in recent years, there is an increasing demand for small work vehicles, and in such a small work vehicle, there is a particular need for improvement. The object of the present invention is to improve the running stability by devising the mounting position of the fuel tank so that a fuel tank of a desired capacity necessary for a work vehicle can be installed without increasing the size of the aircraft and lowering the center of gravity of the aircraft. There is a point to improve the sex.

[0004]

In order to achieve the above object, the present invention is to install a fuel tank on a side of a mission case so as to surround an axle projecting from the mission case, and It is characterized in that a part thereof is inserted into the recessed space of the wheel mounted on the axle.

[0005]

In other words, a dedicated installation space is formed by effectively utilizing the space that has been considered as a dead space in the past, such as the space around the axle between the mission case and the axle and the recessed space of the wheel on the axle. It is possible to install a fuel tank having a desired capacity required as a work vehicle without any need. Moreover, the center of gravity can be lowered because it is mounted at a relatively low position near the axle.

[0006]

As described above, according to the present invention, it is possible to mount a fuel tank having a desired capacity as a working vehicle without increasing the size of the machine body and to provide a working vehicle having excellent traveling stability. ..

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a riding lawn mower, which is an example of a work vehicle,
Airframe frame 3 including front steering wheel 1 and rear driving wheel 2
The control seat 4, the engine 5, and the traveling mission case 6 are attached to the vehicle, and the lawn mower 7 is hung and supported between the front wheel 1 and the rear wheel 2 so as to be lifted and lowered. As shown in FIG. 1, a pair of left and right fuel tanks 9 are provided on the left and right lateral sides of the mission case 6 so as to surround the entire circumference of a rear wheel 8 projecting from the mission case 6.
Is attached. The outer end of the fuel tank 9 is made to enter the recessed space S of the wheel 2A of the rear wheel 2 mounted on the axle 8 to increase the tank capacity. In the figure, 10 is a fuel filler, which extends a fuel filler pipe 11 upward from one fuel tank 9,
It is provided at a position penetrating the rear wheel fender 12.
Further, to the other fuel tank 9, another fuel supply pipe 13 is branched from the middle of the fuel supply pipe 11 so that the left and right tanks 9 can be supplied with fuel from one fuel supply port 10.

[Other Embodiments] In the above embodiment, the fuel tank 9 is shown in a state of enclosing the entire circumference of the axle 8, but instead of this, as shown in FIG. 3, a notch portion 14 is partially formed. Anything is fine.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a mounting portion of a fuel tank.

[Fig. 2] Side view of a riding lawn mower

FIG. 3 is a cross-sectional view of a main part showing another embodiment.

[Explanation of symbols]

 6 mission case 8 axle 9 fuel tank 2A wheel

Claims (1)

Claims: 1. A fuel tank (9) is attached to a side of a mission case (6) so as to surround an axle (8) projecting from the mission case (6), and A work vehicle in which a part of a fuel tank (9) is inserted into a recessed space of a wheel (2A) mounted on the axle (8).