JPS6323212Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a fuel tank device for a vehicle such as an agricultural tractor, and in particular, an auxiliary tank that can increase the amount of fuel held is placed between the left and right frames below the front of the cooler at the bottom of the bonnet. Therefore, in addition to serving as a connecting member for the frame, the tank is also provided to close the bottom of the bonnet in front of the cooler, thereby preventing dust from being sucked in from the side of the bottom and preventing dust from flowing from the cooler to the engine side. It is designed to prevent the released hot air from flowing backwards from the bottom and being re-inhaled. Therefore, the feature here is that the engine cooler 9 is placed in front of the engine 3, and the engine cooler 9 is connected from the engine 3 to the engine cooler. A pair of left and right side frames 11 are protruded forward through the lower side of the engine 9, and a bonnet 12 covers the left and right sides, the front and the upper side of the engine 3 and the engine cooler 9, and is introduced from the front of the bonnet 12. In a device that allows outside air to flow rearward through the engine cooler 9, the engine cooler 9, the left and right side frames 11, and the bonnet 1 are installed below the engine cooler 9 in front of the engine cooler 9.
An auxiliary fuel tank A is arranged to close the bottom of a space B divided by 2, and this auxiliary fuel tank A is located between the front parts of the left and right side frames 11, and its left and right sides are connected to the left and right side frames 11. It's on point.

This invention will be explained below with reference to illustrated embodiments.

Figure 1 shows an agricultural tractor viewed from the side.
Reference numeral 1 designates a tractor body, in which an engine 3 is mounted in a connected manner on the front part of a rear transmission case 2, and a front wheel bearing stand 4 is mounted on the front part of the engine 3.
This is a type of structure with a protruding structure.

A main fuel tank 6 is mounted on the upper part of the transmission case 2, which corresponds to the clutch housing, via a pair of left and right tank stays 5 (partially not shown). Engine 3 is said to be compatible. Here, 8 is a heat shield plate that also functions as a tank stay.

On the other hand, the front vehicle bearing stand 4 is of the integral casting type shown in FIG. 3, and a cooler 9 is installed upright through the rear upper part, while a bumper weight 10 is attached through the front end. There is.

A pair of left and right side frames 11 project forward from the side of the engine 3 through the lower side of the engine cooler 9, and the front ends of the frames 11 are connected and fixed to both sides of an auxiliary fuel tank A to be described later.

On the other hand, the bonnet 12 is composed of a front grill 13 at the front end, an instrument box 14 at the rear end, and a main bonnet 15 formed long before and between them.In this case, the instrument box 14 is of a fixed type, while the main bonnet 15 is divided into left and right side panels and a canopy plate, each of which can be attached and detached individually, and the front grille 13 is also configured to be detachable by inserting the lower end into the auxiliary fuel tank A and connecting it to the canopy plate of the bonnet. ing.

The bonnet 12 covers the left and right sides, the front and the upper part of the engine 3 and the engine cooler 9, and covers the engine cooler 9 and the left and right side frames 1.
Space B where air cleaner 28 etc. are arranged together with 1
The area is divided into sections. Outside air is from front grill 13
After being introduced into the space B from the engine cooler 9
After cooling the engine 3, it is turned into hot air and discharged outside the bonnet 12. The aforementioned auxiliary fuel tank A is installed at the bottom of the space B, and the structure of the tank A will be explained in detail first.

As shown in FIGS. 3 to 7, this auxiliary fuel tank A has a top wall a, a bottom wall b, a front wall c, a rear wall d, and left and right side walls e. It is made of sheet metal as a shape. In this case, the upper wall a and the left and right side walls e, e
The three rear walls d are formed by suitably bending a single plate, and the separate front wall c and bottom wall b are welded together. A recess 16 is formed near the center of the upper part of the tank A, and stud collars 17 are fixed at four locations in this recess 16 so as to penetrate through the bottom side wall e. Bolt 1 that is not protruded
8... are inserted into stud collars 17... and screwed onto the front vehicle bearing stand 4. In this case, due to the presence of the stud collar 17, the tank A can be mounted more firmly without distortion than if it were directly tightened. In this case, since water may accumulate in the recess 16, a drain pipe 19 is inserted and fixed from above and below. Further, receiving plates 20, 20 for connecting to the side frames 11, 11 are fixed to both side walls of the tank A, and the tank A is connected to the bonnet 12 by screwing bolts 18 from the outside. For the cooler 9, it is installed to correspond to the front bottom of the cooler 9. The auxiliary fuel tank A is arranged to close the bottom of the bonnet 12 from the front grill 13 to the front end of the main bonnet 15. In this case, bosses 21, 21 are welded near the front end of the upper wall a of the tank, and the bosses 21, 21 are welded to the left and right sides of the tank. Two pins 22 protrude from the bottom of the front grill 13.
In addition, the front side wall c of the tank functions as a decorative plate and closes the gap with the front grille 13, and for this purpose, it is bent in a planar shape and is formed in an upwardly projecting shape. ing.

The auxiliary fuel tank A thus fixed has an air vent pipe 23 and an inlet pipe 24 protruding from the rear part of the upper wall a, and the inlet pipe 24 is connected to the inlet pipe 24 as shown in FIGS. 8 and 9. Main fuel tank 6
The conduction pipe (made of rubber) 25 taken out from the pipe is guided to the inside of the left side frame 11 via the stay 5, and is guided to the side of the cooler 9 so as to be guided along the inside of the frame 11 by the receiving piece 26. The front end is connected in a bent shape.

On the other hand, the outlet pipe 27 protrudes from the right rear part of the bottom wall b, and is configured to be led to a fuel filter (not shown) through the right side of the engine 3, and then supplied to the pump of the engine 3.

In this specific example, in order to attach the cleaner stay 29 of the air cleaner 28 to the tank A, the mounting shaft 30 facing up and down is fixed to the left and right through the tank A, and the battery 31 is connected to the tank A through the upper wall a. A cradle 32 for use is mounted and fixed,
Furthermore, the center of the bottom wall b of the tank A is recessed into a semi-cylindrical shape so as to bulge upward, and the front wall c is also provided with a notch 33 to allow the crankshaft 34 from the engine 3 to be recessed.
As shown in the third figure, the power is taken out through the bottom and the power is led to a reducer 36 with a clutch 35 at the front, so that, for example, a mower or other muzzle-loading machine can be interlocked, and in this case 37 is an auxiliary A hydraulic pump is shown. Furthermore, 38 is the 6th
As shown in the figure, this is a bypass devised to communicate between both sides of the rear end of the tank in order to deal with the fact that the inside of the tank is divided into left and right sections, and 39 indicates a level gauge.

According to the invention described in detail above, the auxiliary fuel tank A can prevent dust from entering the bonnet from the front bottom of the bonnet 12, and the hot air once released after cooling the cooler can be returned to the engine cooler 9. This can prevent the cooling capacity from decreasing, and the left and right side frames 11
In addition, it can be arranged very compactly without protruding outside the bonnet 12.

[Brief explanation of drawings]

Fig. 1 is a side external view of a tractor showing an example of this invention, Fig. 2 is an enlarged view of its main parts, Fig. 3 is its sectional view, Fig. 4 is its plan view, Fig. 5 is its front view, and Fig. 6 is its main part enlarged view. The figures are a cross-sectional view taken along the line of FIG. 4, FIG. 7 is a bottom view of the tank, FIG. 8 is a cross-sectional view taken along the line of FIG. 1, and FIG. 9 is a cross-sectional view taken along the line of FIG. 1...Airframe, 3...Engine, 6...Main fuel tank, 9...Cooler, A...Auxiliary fuel tank.

Claims (1)

[Claims for Utility Model Registration] An engine cooler 9 is disposed in front of the engine 3, and a pair of left and right side frames 11 protrude forward from the engine 3 through the lower side of the engine cooler 9. and covers the left and right sides, front and upper part of the engine cooler 9 with a bonnet 12,
In the case where outside air introduced from the front part of the bonnet 12 is allowed to flow rearward through the engine cooler 9, the engine cooler 9, the left and right side frames 11, and the bonnet 1 are installed below the front of the engine cooler 9.
An auxiliary fuel tank A is arranged to close the bottom of a space B divided by 2, and this auxiliary fuel tank A is located between the front parts of the left and right side frames 11, and its left and right sides are connected to the left and right side frames 11. A fuel tank device for a vehicle such as an agricultural tractor, characterized by: