JPH0565032A - Mounting structure for fuel tank - Google Patents

Abstract

PURPOSE:To prevent movement of a fuel tank during collision of a vehicle by effectively utilizing a bracket for mounting. CONSTITUTION:A tray-form tank mount plate 14 is supported between a stay 13 supported to a car body and a third cross member and a fuel tank 3 is placed on the tank mount plate 14. Brackets 17 are arranged on the upper surface of the tank mount plate 14 on both sides of the front side and both sides of the central side. A hook 22 locked to the rod 20 of a band 2 is situated to the bracket 17 on the right side and a fixing tool 19 to fasten the band 2 by means of a bolt 18 is located to the bracket 17 on the left side. Meanwhile, a recessed part 23 for being freeform each bracket 17 is formed in the side wall of the fuel tank 3, and the band 2 is mounted between the hook 22 and the fixing tool 19 to mount the fuel tank 3.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art When a fuel tank is attached by a band, the attachment structure shown in FIG. 6 may be adopted.

In the figure, reference numerals 1 and 1 denote stays supported by the vehicle body. Bands 2 are attached to the attachment portions of these two stays 1 and the fuel tank 3 is supported by the band 2 from below. FR indicates the front side.

Further, at the end of the fuel tank 3, a stopper 5 for preventing movement is provided between the vehicle body member 4 and the fuel tank 3 so as to be bifurcated. It prevents the band 2 from coming off and the band 2 from coming off (this structure has a practical construction of 53-66720.
No. publication).

[0005]

However, in the above-mentioned conventional fuel tank mounting structure, the fuel tank 3 is moved further in order to prevent the displacement of the fuel tank 3 not only in the longitudinal collision but also in the lateral collision. It is necessary to add a stopper for prevention, resulting in an increase in the number of parts and a large number of work steps.

The band 2 is provided below the stay 1 described above.
In the case where the fuel tank 3 is suspended by means of the above, when the fuel tank 3 expands due to a rise in the fuel temperature, the lower wall of the fuel tank 3 whose upper part is restricted by the stay 1 is displaced downward. However, it may not be possible to obtain the prescribed ground clearance. Therefore, in order to prevent this, conventionally, the number of bands is increased or a shield is arranged below the fuel tank 3, which causes a problem of cost increase and weight increase.

Therefore, the present invention provides a fuel tank mounting structure that reliably supports the fuel tank, and has a reduced number of parts and man-hours for assembling, thereby achieving cost reduction.

[0008]

At least one pair of brackets for fixing an end portion of a band is provided on a tank mount plate supported on a vehicle body, and a recess for escaping the bracket is formed in a fuel tank mounted on the tank mount plate. The fuel tank is mounted on the tank mount plate with the recesses aligned with the brackets, and the band is clamped between the brackets to fix the fuel tank.

[0009]

The bracket of the fuel tank mounted on the tank mount plate is aligned with the recess of the tank mount plate, so that the bracket restricts the displacement of the fuel tank regardless of a frontal collision or a side collision of the vehicle. To prevent overload.

[0010]

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

As shown in FIGS. 2 and 3, a pair of side members 7 are arranged on both sides of the vehicle body 6 in the front-rear direction of the vehicle body 6, and the first cross member 8 is provided on the front side between the side members 7. The second cross member 9 and the rear side are provided with a third cross member 10, a fourth cross member 11, and a fifth cross member 12 as a vehicle body, respectively.

Behind the second cross member 9, there is provided a stay 13 as a vehicle body from the right side member 7 toward the inside of the vehicle compartment. Fuel is provided to the stay 13 and the right side of the third cross member 10. A tray-shaped tank mount plate 14 that supports the tank 3 from below is attached.

More specifically, referring to FIG. 1, the tank mount plate 14 is a rectangular member long in the front-rear direction of the vehicle body, and a flange 1 attached to the upper surface of the stay 13 at the front.
5, and a flange 16 attached to the lower surface of the third cross member 10 is provided at the rear portion.

On the upper surface of the tank mount plate 14, two brackets 17 on the right side and two brackets 17 on the left side, which are paired with the respective brackets 17 on the right side.
Is provided on the upper side of each bracket 17, and the left bracket 17 is provided with a fixture 19 as a bracket having an L-shaped cross section for fastening one end of the band 2 with a bolt 18. The right bracket 17 is provided with A hook 22 is provided as a bracket for locking the rod 20 provided at the other end of the band 2 in the groove 21.

On the other hand, the fuel tank 3 is made of resin, and recesses 23 are formed vertically on both side walls to allow the brackets 17 to escape.

Then, with the fuel tank 3 mounted on the tank mount plate 14, each of the right side brackets 1
The rod 22 at one end of the metal band 2 is attached to the hook 22 on the 7.
0 is locked and the band 2 is passed to the upper surface of the fuel tank 3, and the other end of the band 2 is fixed to the bracket 19 on each bracket 17 on the left side.
The fuel tank 3 is attached to the tank mount plate 14 by tightening and fixing it with bolts 18.

The front bracket 17 of the brackets 17 is provided near the front flange 15, and the rear bracket 17 is provided substantially at the center of the tank mount plate 14 in the front-rear direction.

According to the structure of the above embodiment, when a forward force is applied to the fuel tank 3 at the time of a vehicle frontal collision, for example, FIG.
The rear wall 23 of the recess 23 of the fuel tank 3 in the state shown in FIG.
The a contacts the rear wall 17a of each bracket 17 and enters the state shown in FIG. 5, thus restricting the forward movement of the fuel tank 3.

At this time, the fuel tank 3 is attached to the bracket 17
Therefore, no force acts on the band 2 and therefore the band 2 is not damaged or the surface of the fuel tank 3 is not damaged.

In the case of a side collision of the vehicle, the fuel tank which is about to move in the collision direction is supported by the inner wall 17b of the bracket 17 near the collision direction by supporting the side wall 23b of the corresponding recess 23 (shown in FIG. 4). , The movement of the fuel tank 3 is restricted.

Therefore, the movement of the fuel tank 3 can be prevented by effectively utilizing the bracket 17 for attaching the band 2 without providing any other auxiliary member against a collision in any direction.

Further, even if the fuel tank 3 expands for some reason, the fuel tank 3 is placed on the tank mount plate 14, so that the fuel tank 3 cannot be displaced downward to narrow the ground clearance. However, since the tank mount plate 14 itself supports the fuel tank 3 from below,
It is possible to protect the fuel tank 3 from the road surface when traveling on a bad road due to chipping or the like.

Therefore, it is not necessary to increase the number of bands 2 or to reinforce with another member, so that the number of parts and the number of assembling steps can be reduced and the cost can be reduced. The present invention is not limited to the above embodiment, and the position and quantity of the bracket 17 can be freely set, for example.

[0024]

As described above, according to the present invention, no matter in which direction the force applied to the fuel tank by the bracket for mounting the band acts on the fuel tank, the bracket is recessed in the fuel tank. The fuel tank can be reliably held by locking the fuel tank.

Further, since the fuel tank is held by the bracket, a force acts on the band at the time of a vehicle collision, so that the fuel tank is not damaged by the band and a large load does not act on the band, so that the band is durable. Can be improved.

Even if the fuel tank expands for some reason, the ground clearance of the fuel tank does not decrease as in the conventional case, various measures are not required, and the cost can be reduced. The tank can be protected from chipping and the like.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing an arrangement state of the fuel tank.

FIG. 3 is a plan view showing the arrangement of the fuel tank.

FIG. 4 is a plan view of the mounting portion.

FIG. 5 is a plan view of the mounting portion at the time of the collision.

FIG. 6 is a perspective view of a conventional technique.

[Explanation of symbols]

2 ... band, 3 ... fuel tank, 10 ... third cross member (car body), 13 ... stay (car body), 14 ... tank mount plate, 17 ... bracket, 19 ... fixture (bracket), 22 ... hook (bracket) , 23 ... Recesses.

Claims (1)

[Claims] 1. A tank mount plate supported on a vehicle body is provided with at least a pair of brackets for fixing an end portion of a band, and a fuel tank mounted on the tank mount plate is formed with a recess for escaping the bracket. A fuel tank mounting structure characterized in that a fuel tank is placed on a tank mount plate in alignment with a bracket, and a band is tightened between the brackets to fix the fuel tank.