JPH03197234A - Fuel tank installing structure of vehicle - Google Patents

Abstract

PURPOSE:To improve the reinforcing effect of a car body and to secure the capacity of a fuel tank sufficiently by linking the middle parts of side frames at the left and the right sides of the car body to each other with tank holding frames, and installing a fuel tank on the tank holding frames at both sides of the car body. CONSTITUTION:In side frames 37 for reinforcement at both sides in a tractor body 1, the middle parts of them are linked each other with two tank holding frames 43 at the front side and the rear side. That is, the tank holding frames 43 are formed in a plate form, fixed to the lower side of the tractor body 1 with bolts 44, and brackets 45 attached to the left side and the right side ends of the tank holding frames 43 are fixed to the side frames 37 respectively. And a fuel tank 47 is installed through plate-form tank protective plates 46 provided at the left side and the right side of the tractor body 1, on the upper side of the tank holding frames 43. That is, the fuel tank 47 is formed in a box form longer in the longitudinal direction, loaded on the tank protective plates 46 between the left side and the right side bending parts 48 and 49, and at the same time, fixed to the tank protective plates 46 with positioning plates 51 on the tank protective plates 46, and bands 52.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fuel tank mounting structure for a vehicle such as a tractor.

(Prior Art) In a work vehicle such as a tractor, when working with a front loader attached to the front of the vehicle body, for example, reinforcing side frames are installed on both left and right sides of the vehicle body in the longitudinal direction parallel to the vehicle body. In preparation for
Some vehicles have side frames that reinforce the vehicle body to prevent the vehicle body from breaking due to abnormal overload during work.

On the other hand, in this type of vehicle, since a front loader is attached to the front of the vehicle body, the fuel tank is generally provided behind the driver's seat, that is, on the rear of the vehicle body.

(Problem to be solved by the invention) Conventionally, the left and right side frames were only connected to the vehicle body at both the front and rear ends, and the intermediate portion was not connected to the vehicle body. /, F, l could not be done.

Additionally, since the fuel tank was located at the rear of the vehicle, there was a problem in that it was not able to secure sufficient capacity. In other words, in some cases, such as a tractor, a backhoe is attached to the rear of the vehicle body, but in this case, the driver's seat for the bankhoe is located near the fuel tank, so if the capacity of the fuel tank is increased, the backhoe can be removed from the vehicle body. If it moves further to the rear, the overall balance will deteriorate. Therefore, in the past, the capacity of the fuel tank had to be reduced because the backhoe had to be mounted close to the vehicle body.

In view of these points, the present invention provides a fuel tank mounting structure that can improve the reinforcing effect of the vehicle body and also ensure a sufficient capacity of the fuel tank.

(Means for Solving the Problems) The present invention provides a vehicle that is provided with reinforcing side frames 37 on both left and right sides of a vehicle body 1 in the longitudinal direction. They are connected by a tank support frame 43, and fuel tanks 47 are respectively mounted on the tank support frames 43 on both left and right sides of the vehicle body l.

(Function) Since the side frames 37 on both the left and right sides of the vehicle body 1 are connected at their intermediate portions by the tank support frame 43 fixed to the vehicle body 1, the reinforcement effect of the vehicle body 1 is greater than that without the tank support frame 43. will improve. Furthermore, since the fuel tank 47 is mounted on the tank support frame 43 on both the left and right sides of the vehicle body 1, a sufficient capacity can be secured. Furthermore, the tank support frame 43 not only serves to attach the fuel tank 37, but also serves to reinforce the side frame 37, which simplifies the structure.

(Example) Hereinafter, the present invention will be described in detail with regard to the illustrated example.
The figure illustrates a case where a front loader 2 and a backhoe 3 are attached to the front and rear of a tractor body 1. In Figure 6,
The tractor body I is provided with front wheels 4 and rear wheels 5. 7 is Ponne 1~. 8 is a handle. Rear wheel 5 is
As shown in FIG. 5, it is supported by the tractor body 1 via a rear axle case 9, and is covered from the inside by a rear wheel fender 10. Reference numeral 11 denotes an awning device, which supports a roof 14 by a pair of left and right front columns 12 and rear columns 13.
It is attached to the tractor body 1 so as to cover a driver's seat 15 disposed between the left and right rear wheel fenders 10 from above. The rear column 13 is also used as a safety frame, and the second
As shown in the figure, it is mounted on a fixed lower strut 25 on the rear axle case 9. The driver's seat 15 is mounted on the tractor body l via an inversion support device so that it can be reversed forward and backward between a forward position and a rearward position.

The front loader 2 has a boom 18 pivotally attached to the upper ends of a pair of left and right masts 17 so as to be vertically movable.
A bucket 19 is rotatably attached to the tip of the mast 1.
7 and boom 1B, boom cylinder 20, arm 1
A bucket cylinder 21 is interposed between the bucket 8 and the bucket 19, respectively. The mast 17 is provided in the center of the tractor body 1 and is detachably attached to a mounting base 22, and the front end of a place 23 extending forward from the mast 17 is detachably attached to a bracket 24 at the front end of the tractor body 1.

The backhoe 3 is detachably mounted on the tractor body 1 via a mounting device. This backhoe 3 has machine frame 27.
, a rocking table 29 supported on the machine frame 27 so as to be swingable around a vertical axis 28 , a boom 30 pivotally supported on the rocking table 29 so as to be swingable up and down, and a bendable structure at the tip of the boom 30 . It includes a pivoted arm 31 and a bucket 32 pivoted to the tip of the arm 3I, including a swing cylinder 33, a boom cylinder 34, an arm cylinder 35, and a bucket cylinder 36.
They can be operated respectively.

As shown in FIGS. 1, 2, and 5, reinforcing side frames 37 are arranged on both left and right sides of the tractor body 1 in the front-rear direction. The front end of this side frame 37 is fixed to the mounting base 22 of the front loader 2 via a bracket 38.
Further, the rear end portion is fixed by bolts to a check chain bracket 40 attached to the rear axle case 9 via a mounting plate 39.

The check chain bracket 40 is used to connect a check chain (none of which is shown) that checks the lower link of a three-point link mechanism that attaches a working machine to the rear of the tractor body 1.

The left and right side frames 37 are connected to each other at their intermediate portions by two tank support frames 43, front and rear. That is, the tank support frame 43 is plate-shaped and is fixed to the lower surface of the tractor body l with bolts 44, and brackets 45 provided at both left and right ends of each tank support frame 43 are attached to each side frame 37 with bolts. Fixed.

On the front and rear tank support frames 43, plate-shaped tank protection plates 46 are arranged on both left and right sides of the tractor body 1.
A fuel tank 47 is attached via. Keep the tank! The plate 46 has bent portions 48 and 49 on both the left and right sides, and is attached to the tank support frame 43 by poles 1-50 at both front and rear ends. The fuel tank 47 has a box shape that is long in the front and back, and is placed on the tank protection plate 46 between the left and right bent portions 48 and 49, and is secured by a positioning plate 51 and a band 52 on the tank protection plate 46. It is fixed to the tank protection plate 46. The positioning plate 51 is fixed to both the front and rear ends of the tank protection plate 46. There are two bands 52 at the front and back.
As shown in FIG.
3 with a bolt 54, and a screw shaft 55 is welded to the other end as shown in FIG. The screw 55 is inserted into a bracket 56 fixed to the bent part 49 inside the tank protection plate 46, and the nut 5 is inserted under the bracket 56.
7 and 58 are screwed together. Therefore, oak 1-57.
By tightening the band 58, the fuel tank 47 can be fixed on the tank protection plate 46, and by loosening the band 52, the screw shaft 55 can be secured.
By removing the fuel tank 47 from the bracket 56, the fuel tank 47 can be removed from the tank protection plate 46.

The left and right fuel tanks 47 have a ventilation vibrator 59 on the upper surface side, and are communicated with each other by a communication vibro 0 on the lower side.

Furthermore, a fuel filler port 62 having a fuel filler cap 61 is provided on the upper surface side of one fuel tank 47 .

According to the embodiment with such a configuration, two tank support frames 43, front and rear, are attached to the tractor body l, and the tank support frames 43 connect the middle portions of the left and right side frames 37 to each other, so that this side The reinforcing effect of the tractor body 1 by the frame 37 is improved, and the strength against bending of the tractor body is significantly increased. Therefore, even if an abnormal load is applied to the tractor body 1 during work with the front loader 2, breakage due to shell cracking or the like at the joint can be prevented.

Further, since the fuel tanks 47 are arranged on the tank support frame 43 on both sides of the tractor body 1, a sufficient overall tank capacity can be ensured. Furthermore, this portion does not pose any problem when attaching the front loader 2 and backhoe 3. Further, since the tank support frame 43 also serves as a member for connecting and reinforcing the intermediate portion of the side frame 37, the number of members is reduced and the structure can be simplified.

The lower side of each fuel tank 47 is protected by a tank protection plate 46, and the lower outer side is protected by a side frame 37.

Therefore, even if the fuel tank 47 is located on both sides of the tractor body 1, the fuel tank 47 can be sufficiently protected from obstacles.

Note that the fuel tank 47 is refilled with fuel from one side, and the fuel is taken out to the engine from the other side.

In the embodiment, a tractor is illustrated, but the present invention is not limited to this. Further, the number of tank support frames 43 may be one or three or more.

(Effects of the Invention) According to the present invention, the intermediate portions of the left and right side frames 37 are connected by the tank support frame 43 fixed to the vehicle body l, and the fuel tank 47 is mounted on the tank support frame 43 on both left and right sides of the vehicle body l. Since they are attached to each other, the reinforcement effect of the vehicle body 1 can be improved, a sufficient capacity of the fuel tank 47 can be ensured, and the structure can be simplified.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of the tank mounting part, Fig. 2 is a front view thereof, Fig. 3 is an enlarged cross-sectional view of the fixed hand part, and Fig. 4 is a rectangular shaft part. Enlarged sectional view of 5th
The figure is a plan view of the rear part of the tractor, and FIG. 6 is a side view of the entire tractor. 1... Tractor body, 2... Front loader, 37
...Side frame, 43...Tank support frame, 46...Tank protection plate, 47...Fuel tank, 52...Fixing band.

Claims (1)

[Claims] (1) Reinforcing side frames (37) on both left and right sides of the vehicle body (1)
In vehicles equipped with the front and rear sides, the left and right side frames (37)
A tank support frame (43) whose intermediate part is fixed to the vehicle body (1)
), and the tank support frame (4) is connected on both the left and right sides of the vehicle body (1).
3) A fuel tank mounting structure for a vehicle, characterized in that a fuel tank (47) is mounted on each fuel tank.