JPH0336424Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to a support structure for a fuel tank of an automobile, and more specifically, to a support structure for a fuel tank of an automobile, and more specifically, to prevent the fuel tank from coming off and being damaged even if it is subjected to impact due to a vehicle collision, etc. This is how it was done.

<Prior art> The support structure of a fuel tank according to the prior art is shown in FIG. 4, which schematically shows the support structure, and FIG. 5, which shows a part of it in an enlarged manner.
This will be explained with reference to FIG. 5a and FIG. As shown in these drawings, the fuel tank 1 of an automobile is normally installed under the rear floor 2 because it has the longest distance from the ground, and is supported by tank support bands 3 (generally there are two).
It is held down by the rear floor 2 via the pad 9. The rear end of this tank support band 3 is fixed with bolts to a rear floor cross member 4 fixed to the lower surface of the rear floor 2, and the front end thereof is structured so that it can be hung from the viewpoint of workability. In other words, at the front end of the tank support band 3,
A locking pin 5 that is longer than the tank support band 3 is fixed to the rear floor 2.
A latch port 7 is an opening formed at the front end of the
The structure is such that it can be hung on. This latch 7
is an insertion opening 6 formed at the front end of the rear floor 2 and having a slightly wider opening than the locking pin 5.
The width is slightly wider than the tank support band 3 and slightly narrower than the locking pin 5. In this way, the locking pin 5 is supported by the pin support portions 8, which are vehicle body parts on both the left and right sides of the locking port 7. In such a structure, stress is concentrated at, for example, the K section and the J section of the insertion port 6, resulting in fatigue fracture. Therefore, a reinforcement 101 having an opening in the same shape as the insertion port 6 and the locking port 7 is installed around the insertion port 6 and the locking port 7 so as to be superimposed on the rear floor 2 for reinforcement. It is being Further, since the locking pin 5 of the tank support band 3 may come off from the locking opening 7 in the event of a vehicle collision, an auxiliary member 102 for preventing it from coming off is provided. One end of this slip-off prevention auxiliary member 102 is fixed to the lower surface of the rear floor 2, and the other end is fixed to the tank support band 3 with a bolt.

<Problems to be solved by the invention> In the conventional fuel tank support structure as described above, the locking pin 5 does not close to the insertion port 6 in the event of a vehicle collision, etc.
A retaining member 102 is installed to prevent the fuel tank 1 from falling off and being damaged due to the fuel tank 1 coming off the fuel tank. This is undesirable because it leads to an increase in weight and cost.

In view of the above-mentioned problems, the present invention improves the mechanism that prevents the locking pin 5 from coming off in the event of a vehicle collision, saves labor, and further reduces the number of parts to reduce weight and cost. The purpose is to provide a tank support structure.

<Means for Solving the Problems> The configuration of the present invention to achieve the above object includes a tank support band whose rear end is fixed to the vehicle body and supports the fuel tank by pressing it against the vehicle body, and this tank support band. a locking pin that is integrally provided at the front end of the vehicle body and is longer than the width of the tank support band; an insertion hole formed in the vehicle body through which the locking pin can pass; and a locking pin that is integrally provided at the lower end of the insertion hole. Continuously, a latching opening is formed on the vehicle body, which is slightly wider than the width of the support band and slightly narrower than the latching pin, and for latching the latching pin to the vehicle body, and a lower end of the insertion opening on either the left or right side. It is characterized by having a stopper that is integrally provided on at least one side of the locking pin and prevents the locking pin from coming off from the insertion opening.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings. Note that parts that are the same as those in the prior art are given the same numbers and redundant explanations will be omitted.

FIG. 1 is an explanatory diagram conceptually showing a fuel tank support structure according to an embodiment of the present invention, FIG. 2 a is a back view showing the reinforcement 10, and FIG. 2 b is a sectional view taken along line AA. It is. As shown in these figures, in this embodiment, a flange 11 is provided by burring the periphery of the insertion opening 6 of the reinforcement 10. The stopper 11S, which is a part of the flange 11, functions as a stopper to prevent the locking pin 5 from coming off from the insertion opening 6. This eliminates the need for the detachment assisting member 102 that was conventionally attached. The stopper 11S may have an arcuate cross section as shown in the drawings, or may protrude at right angles to the reinforcement 10, for example. Further, the size of the stopper 11S is not particularly limited, but if it is slightly larger than half of the locking pin 5, the purpose can be sufficiently achieved.
In the embodiment, the insertion port 6
Since the flange 11 is provided all around the periphery of the insertion opening 6, the strength of the four corners (J section and K section) of the insertion opening 6 can be increased. In other words, even if stress is concentrated in the J and K parts, cracks no longer occur. Furthermore, weight and cost reductions can also be achieved by reducing the thickness of the material of the reinforcement 10.

Furthermore, as shown in FIGS. 3a and 3b, the latch opening 7
By providing a T portion, which is a flange, by burring a part of the lower end of the tank support band 3, the behavior of the tank support band 3 is further restrained, and the locking pin 5 becomes more secure against coming off.

Note that the flanges such as the stopper 11S and the T portion described above may be attached by, for example, welding other than burring. In addition, the insertion port 6
If the periphery of not only the periphery of the pin support part 8 but also the periphery of the latch opening 7 is integrally burred, the strength of the pin support part 8 will be further increased, and it will be more effective in preventing deformation due to stress concentration.

In the above embodiment, the reinforcement 10 was attached to the upper surface of the rear floor 2, but if the reinforcement was attached to the lower surface of the rear floor 2, the same effect would naturally apply even if the rear floor 2 was processed as described above. effect can be obtained.

<Effects of the Invention> As explained above in detail with the embodiments, in the fuel tank support structure according to the present invention, the link is used as a stopper to prevent the locking pin fixed to the tank support band from coming off. By providing a flange on the hosement (or rear floor), it is possible to omit the special parts that were traditionally provided to prevent the parts from coming off, and the great amount of time required to install these parts can also be saved. Effects can be obtained. This contributes to a reduction in the number of parts, weight, and cost.

By providing a flange at least around the entire circumference of the insertion port as shown in the embodiment, the strength of the corners of the insertion port is increased, and there is no fear of breakage even if stress is concentrated. As a result, the thickness of the reinforcement can be reduced, contributing to reductions in weight and cost. Further, by providing a flange at the lower end of the latching opening of the latching pin, the behavior of the latching pin is further restricted, thereby making the function of the latching pin more reliable.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a fuel tank support structure according to an embodiment of the present invention, FIG. 2 a is a back view showing its reinforcement, FIG. a is a partially enlarged sectional view of another embodiment;
Figure 3b is a back view showing the reinforcement;
FIG. 4 is an explanatory view showing a fuel tank support structure according to the prior art, FIG. 5a is a partially enlarged view thereof, and FIG. 5b is a sectional view taken along line B-B. In the drawing, 1 is the fuel tank, 2 is the rear floor, and 3 is the fuel tank.
is a tank support band, 5 is a locking pin, 6 is an insertion port, 7 is a locking port, 10 is a reinforcement, 11
is a flange, and 11S is a stopper.

Claims (1)

[Scope of utility model registration request] A tank support band whose rear end is fixed to the vehicle body and supports the fuel tank by pressing it against the vehicle body, and a hook that is integrally provided at the front end of the tank support band and is longer than the width of the tank support band. a locking pin, an insertion hole formed in the vehicle body through which the locking pin can pass, and an insertion hole integrally continuous with the lower end of the insertion hole and provided in the vehicle body with a width slightly wider than the width of the support band and wider than the locking pin. A latching port is formed to be slightly narrow and allows the latching pin to be latched to the vehicle body, and a latching port is integrally provided on at least one of the left and right lower ends of the insertion port to prevent the latching pin from coming out of the insertion port. A fuel tank support structure characterized by having a stopper for preventing.