JPH05155258A - Fitting structure of fuel tank for automobile - Google Patents

Abstract

PURPOSE:To obtain volume by forming a recessed section in the bottom of a fuel tank and to properly secure a clamp belt. CONSTITUTION:In the bottom face of a fuel tank 2, a recessed section 10 to receive the suspension member 8 extending in the cross direction of a car in the lower face of a rear floor panel 1 for evading interference is stepedly formed and a belt fitting hole 11 penetrating the corner section of the recessed section 10 and the upper wall of the fuel tank 2 is formed. The middle section of a clamp belt 3, brackets 4 of both ends of which are fixed to a cloth member 5 by bolts and nuts 6 is pulled and suspended by a belt suspension instrument 12 is stuck to the face of the recessed section 10 fixed to the lower face of the rear floor panel 1 and threaded through the belt hole 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle fuel tank mounting structure.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional structure. Reference numeral 1 denotes a rear floor panel. A fuel tank 2 is attached to the lower surface of the rear floor panel 1 by a pair of clamp belts 3 in a longitudinal direction of a vehicle body. There is. The clamp belt 3 is provided with brackets 4 at both ends thereof, and the brackets 4 are joined to the lower surface of the rear floor panel 1 in the vehicle width direction, and bolts and nuts 6 are fixed to a cross member 5 of a floor frame member. In the figure, 7 is a rear seat and 8 is a spare tire. This similar structure is shown, for example, in Japanese Utility Model Laid-Open No. 61-87728.
JP-A-61-159218 and the like.

[0003]

Depending on the type of vehicle, as shown in FIG. 8, a floor functional component, such as a suspension member 8, extends in the vehicle width direction just below the rear floor panel 1 where the fuel tank 2 is mounted. ， May be placed.
In this case, in order to avoid the interference with the suspension member 8 and to arrange the clamp belt 3 in close contact with the bottom surface of the tank, the fuel tank 2 needs to be formed with a slanted flat tank bottom portion as a whole. Therefore, the tank volume is inevitably narrowed.

Therefore, according to the present invention, the reduction of the tank volume can be suppressed as small as possible, and the clamp belt can be closely attached to the bottom surface of the tank so that the fuel tank can be properly placed on the lower surface of the rear floor panel. The present invention provides a mounting structure for an automobile fuel tank that can be mounted.

[0005]

In a structure in which a fuel tank is mounted on a lower surface of a rear floor panel by being clamped in a vehicle body front-rear direction by a clamp belt, the fuel tank extends in the vehicle width direction below the rear floor panel at a bottom portion of the fuel tank. A recess for receiving the floor functional component is formed, and a belt mounting hole is formed by penetrating the recess and the tank upper wall, and the clamp belt is inserted into the belt mounting hole, and is attached to the lower surface of the rear floor panel with a belt suspension tool. It is towed and suspended, and it is arranged in close contact with the concave surface.

[0006]

By fixing both ends of the clamp belt to the lower surface of the rear floor panel while the clamp belt is supported by the belt suspension device, the intermediate portion of the clamp belt is towed and suspended by the belt suspension device so that the bottom portion of the fuel tank is secured. It comes into close contact with the concave surface, and the lift of the clamp belt from the bottom of the fuel tank is eliminated, so that the fuel tank can be properly mounted.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings by attaching the same reference numerals to the same parts as those in the conventional structure.

In FIGS. 1 and 2, a fuel tank 2 is arranged on the lower surface of a rear floor panel 1, and the bracket 4 is attached to a cross member 5 by bolts and nuts by a clamp belt 3 having brackets 4 at both ends of the fuel tank 2. 6. The basic structure of fixing and tightening in the front-rear direction of the vehicle body is the same as the conventional one.

Here, the fuel tank 2 is formed of, for example, a resin material, and a floor functional component extending in the vehicle width direction below the rear floor panel 1 is provided at the bottom of the fuel tank 2, for example, a suspension member 8. Recess 10 for receiving
And the belt mounting hole 11 is integrally formed so as to penetrate the corner of the recess 10 and the tank upper wall. When the clamp belt is disposed on the side of the fuel tank 2, this belt mounting hole may be a recessed hole 11 'for mounting as shown in the enlarged view of the main part of FIG. .

Then, the belt suspension device 12 having the intermediate portion of the clamp belt 3 inserted into the belt mounting hole 11 is provided.
Then, the rear floor panel 1 is towed and suspended on the lower surface thereof, and the intermediate portion of the clamp belt 3 is arranged in close contact with the surface of the recess 10.

The belt suspension 12 has locking rings 1 at both ends.
4 and 15, one of the locking rings 14 is composed of a belt member 13 engaged with a bracket 16 joined to the lower surface of the rear floor panel 1, and the clamp belt 3 is inserted through the locking ring 15 at the other end. The middle portion of the clamp belt 3 is suspended. The lower locking ring 15 through which the clamp belt 3 is inserted is of a one-side open type so that the clamp belt 3 can be easily inserted, and the open end 15a is closed by a stopper ring 17.

Alternatively, the belt suspension 12 may be formed of a ring-shaped steel wire rod 18 having an open end 18a closed on the lower side by a stopper ring 17 as shown in FIG.

Further, a projecting edge portion 19 is formed on the inner periphery of the belt mounting hole 11 as shown in FIG. 5 or 6, and the belt suspending tool 12 is formed on the peripheral wall of the belt mounting hole 11 by this projecting edge portion 19. It is preferable to prevent the fuel tank 2 from being interfered with and damaging the fuel tank 2. The projecting edge portion 19 can effectively utilize the burr generated when the fuel tank 2 is molded.

According to the structure of the above embodiment, the fuel tank 2
Is a recess 1 that receives a suspension member 8 at its bottom.
Since 0 is stepwise molded to avoid interference with the suspension member 8, the volume reduction can be suppressed to a small extent as compared with the case where the tank bottom is entirely tilt-molded. Even if the recess 10 is present at the bottom of the tank as described above, the intermediate portion of the clamp belt 3 is formed at the recess 10 at the belt mounting hole 11 formed in the fuel tank 2.
Since the belt suspending tool 12 inserted through the tow is used to pull and suspend the lower surface of the rear floor panel 1, the intermediate portion of the clamp belt 3 can be brought into close contact with the recess 10 surface, and the clamp belt 3 can be moved from the tank bottom surface. Without rising
The fuel tank 2 can be mounted properly.

[0015]

As described above, according to the present invention, a recess is formed in the bottom portion of the fuel tank to avoid interference with the floor functional parts, and the reduction of the tank volume is suppressed as small as possible. Since the clamp belt is pulled and suspended from the lower surface of the floor panel by the belt suspension tool inserted through the belt mounting hole provided in the fuel tank at the portion where the concave portion is formed, the clamp belt is also brought into close contact with the concave portion surface. As a result, the fuel tank can be properly mounted, and it is possible to secure both the volume by forming the concave portion at the bottom of the tank and the proper mounting of the clamp belt.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an upper end portion and a lower end portion of the belt suspension.

FIG. 3 is a perspective view of a main part showing a different example of a belt mounting hole.

FIG. 4 is a perspective view showing another example of the belt suspension.

FIG. 5 is an enlarged view of part A in FIG.

FIG. 6 is an enlarged view showing a different example of part A in FIG.

FIG. 7 is a schematic cross-sectional view showing a conventional structure.

FIG. 8 is a sectional view showing a different example of a conventional structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rear floor panel, 2 ... Fuel tank, 3 ... Clamp belt, 8 ... Floor functional parts, 10 ... Recesses, 11, 1
1 '... Belt mounting hole, 12 ... Belt suspension.

Claims (1)

[Claims] 1. A structure in which a fuel tank is attached to the lower surface of a rear floor panel by tightening it in the vehicle front-rear direction with a clamp belt, and a floor functional component extending in the vehicle width direction below the rear floor panel is attached to the bottom of the fuel tank. A recess for receiving the recess is formed, a belt mounting hole is formed through the recess and the tank upper wall, and the clamp belt is pulled by the belt suspending tool inserted in the belt mounting hole to the lower surface of the rear floor panel. The fuel tank mounting structure for an automobile is characterized in that the fuel tank mounting structure is disposed in close contact with the concave surface.