JPH03176235A - Tractor fuel tank - Google Patents

Abstract

PURPOSE:To facilitate monitoring of rear operation and shorten the overall length of a tractor by installing fuel tanks which are constructed so that they may be divided to the right and left, in the spaces of right and left fenders of a seat on the rear side, and sloping the lower surface of the tank so as to make no interference with a lift arm. CONSTITUTION:Fuel tanks 1R and 1L, which are constructed so that they may be divided to the right and left, are installed in the spaces between right and left fenders 2R and 2L of a seat on the rear side, and are connected by a lower communicating tube 5. Also, the bottom surfaces at lower parts on the rear side of the tanks 1R and 1L are constructed slantly so as to make no interfer ence with rotating lift arms 11R and 11L protruding from the right and left of the hydraulic cases at the upper parts of rear shaft cases 13R and 13L even if they rotate. And the shapes of the tanks 1R and 1L on the upper and rear sides are formed so that they may not protrude from the fenders 2R and 2L. It is thus possible to make a bonnet compact for easy monitoring of rear opera tion and to improve stability by applying the weight of the tank to the rear wheel.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a technology in which a fuel tank of a tractor is arranged at the rear of the seat.

(b) Prior Art It has been known for a long time that the fuel tank of a tractor is placed at the rear of the seat.

For example, there is a technique described in Japanese Utility Model Application Publication No. 60-6627.

(c) Problems to be Solved by the Invention However, with the conventional configuration in which the fuel tank is provided at the rear of the seat, there is a problem in that it is difficult for the operator sitting on the seat to see the work equipment when looking back.

Furthermore, this is the part where the lift arm moves up and down, and in order to avoid this, the fuel tank has to be made smaller in size, resulting in a problem of reduced capacity.

The present invention solves these problems of the prior art.

(d) Means for Solving the Problems The problems to be solved by the present invention are as described above, and the means for solving them will now be explained.

The fuel tank is placed behind the seat by dividing it into left and right parts, and the divided left and right fuel tanks are connected by a lower communication pipe, and the left and right fuel tanks are shaped to avoid the rotation range of the lift arm, and are installed in the rear axle case. It is fixed on the hydraulic case approximately above the fender, and is positioned so that it does not protrude from the fender.

(E) Embodiment The problems to be solved by the present invention and the means for solving them are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Figure 1 is a top view of the tractor, Figure 2 is a rear view,
3 is an enlarged plan view of the seat S and fuel tank 1, FIG. 4 is an enlarged rear view of the fuel tank 1, FIG. 5 is a side sectional view of the seat S and the fuel tank 1, and FIG. It is also an enlarged side view.

In FIGS. 1 and 2, fenders 2L and 2R cover left and right rear wheels 16L and 16R supported by axles protruding from left and right rear axle cases 13L and 13R of the tractor.

In the present invention, the left and right fuel tanks IL and IR are arranged in the space between the left and right fenders 2L and 2R.

By dividing the fuel tank 1 into left and right fuel tanks IL and IR and creating a space in the center, when the operator watches the rear while sitting on the seat S,
Through this space, the rear lift arms IIL/11R and the work equipment can be easily seen.

Further, a safety frame 10 is provided to be supported by the left and right rear axle cases 13L and 13R, and the left and right base ends 10L and IOR of the safety frame 10 are connected to the rear axle cases 13L and 13R.
It protrudes above R and is arranged inside the fenders 2L and 2R.

Next, FIGS. 3, 4, 5, and 6 will be explained.

A reflector mounting bracket 6a is fixedly installed between the left and right fuel tanks IL and IR, and the reflector 6 is mounted on the reflector mounting bracket 6a with the upper part tilted forward and the lower part tilted backward. It is possible to install it in this state.

Since the fuel tank 1 is divided into left and right IL and IR as in the present invention, two tank camps 3 are required, but in the present invention, the left and right fuel tanks LL-I
The lower part of H is communicated with the lower communication pipe 5, and the upper part is connected with the ventilation pipe 4.
It is connected by

Fuel passes through the lower communication pipe 5, and air flowing in and out of the fuel tank IR passes through the ventilation pipe 4. With this configuration, the tank cap 3 only needs to be provided on one fuel tank IL.

A reflector mounting bracket 6a is provided between the lower communication pipe 5 and the ventilation pipe 4.

Further, as shown in FIG. 4, a hydraulic case 7 is placed on the transmission case M of the tractor, and a tank support plate 9L supports the left and right fuel tanks IL and IR from the hydraulic case 7.
・9R protrudes to the left and right.

From the tank support plates 9L and 9R, the bands 14L and 14R are extended to tighten the tank.
The fuel tanks IL and IR are fixed to tank support plates 9L and 9R by L and 14R.

The left fuel tank IL is bent so that its bottom surface is lower than the top surface of the hydraulic case 7, and the outside of the tank support plate 9L is lowered.

Also, the tank support plate 9R that supports the right fuel tank IR
is protruded at the same height as the upper surface of the hydraulic case 7 and supports the fuel tank IR above the hydraulic case 7.

Further, seat back covers 8L and 8R protrude from the left and right safety frame bases 10L and IOR, and the front surfaces of the fuel tanks IL and IR are covered by the seat back covers 8L and 8R.

Furthermore, as shown in Fig. 5, the fuel tanks IL and IR arranged between the left and right fenders 2L and 2R are shaped so that they do not protrude above or behind the fenders 2L and 2R when viewed from the side. It is being done.

In addition, the lower part of the rear surface of the fuel tank IL/IR forms a diagonal bottom surface, and when the lift arms IIL/IIR protruding from the left and right sides of the hydraulic case 7 rotate upward, the lift arms IIL/11R and the fuel tank It is configured so that IL and IR do not interfere.

Further, the lower communication pipe 5 is protected around it by a reflector mounting bracket 6a.

In addition, as shown in FIG. 4, in this configuration, in order to enable the diamond-shaped reflector plate 6 to be placed between the left and right fuel tanks LL and IR, there is a character "<" inside the fuel tanks IL and IR. A recessed portion of the mold is configured.

(F) Effects of the Invention Since the present invention is constructed as described above, it has the following effects.

First, by placing the fuel tank 1 at the rear, there is no need to place the fuel tank 1 inside the bonnet as in the past, so the bonnet can be made smaller, and the front of the bonnet can also be lowered. Therefore, the visibility ahead can be improved.

Furthermore, since it is not affected by the size of the bonnet, the capacity of the fuel tank 1 can be increased.

Second, by dividing the fuel tank 1 into left and right sides, a space can be created between the left and right fuel tanks IL and IR, and even though the fuel tank 1 is located behind the seat S, The rear visibility was also improved so that the work equipment behind could be monitored from this space.

Third, connect the fuel tanks IL and IR to the rear axle case 13L and
By placing it on top of the 13R, the weight of the tank can be applied to the rear wheels, improving stability and driving force to the rear wheels.

Fourth, the bottom surfaces of the left and right fuel tanks IL/IR are sloped to prevent interference with the lift arms 11L/IIR, so the fuel tanks IL/IR and the lift arms I
This allows the IL and 11R to be arranged in an overlapping position, thereby shortening the overall length of the tractor and reducing the overhang dimension with the working machine.

Fifth, above the left and right fenders 2L and 2R,
By configuring it so that it does not protrude rearward, the fuel tanks IL and IR can be protected by the fenders 2L and 2R.

[Brief explanation of drawings]

Figure 1 is a top view of the tractor, Figure 2 is a rear view,
3 is an enlarged plan view of the seat S and fuel tank 1, FIG. 4 is an enlarged rear view of the fuel tank 1, FIG. 5 is a side sectional view of the seat S and the fuel tank 1, and FIG. It is also an enlarged side view. IL, IR...Fuel tanks 2L, 2R...Fender 3...Tank cap 4...Vent pipe 5...Lower communication pipe 6...Reflector plate 7... ... Hydraulic case 9L, 9R ... Tank support plate 10 ... Safety frame 11 ... Lift arm

Claims (1)

[Claims] The fuel tank is placed behind the seat by dividing it into left and right parts, and the divided left and right fuel tanks are connected by a lower communication pipe, and the left and right fuel tanks are shaped to avoid the rotation range of the lift arm, and are installed in the rear axle case. A tractor fuel tank characterized by being fixed on the hydraulic case substantially above the fender and not protruding beyond the fender.