JPS6012746Y2 - Fuel filler hose piping structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a piping structure for a fuel filler hose for automobiles, etc.

The piping structure of the conventional fuel filler hose is as follows:
For example, there are those shown in Figures 1A and 1B.

A fuel tank 3 is mounted under the floor 2 of a rear seat 1 having a backrest 1a, a lower part 4a of a fuel filler hose 4 continuous with the fuel tank 3 is disposed under the floor 2, and the hose 4 is The intermediate portion 4b is raised within the guide portion a formed by recessing the wheel house 5 inwardly of the vehicle, and the upper portion 4c of the hose 4 is
Arranged at the top of the wheel house 5 toward the side of the vehicle body 6,
The upper end opening 4d of the hose 4 faces the filler base 7 on the side of the vehicle body 6.

The lower part 4a of the hose 4 extends to the rear of the rear axle 8 supported by a spring and shock absorber (not shown) on the vehicle body, and the intermediate part 4b and upper part 4c are positioned rearward of the rear axle 8. The filler base 7 is also disposed behind the rear axle 8.

9 in the figure is a wheel. However, in the piping structure of such a conventional fuel filler hose,
Since the middle part 4b of the fuel filler hose 4 rising inside the wheel house 5 and the lower part 4a under the floor 2 are located behind the rear axle 8, the rear overhang is particularly small in the event of a rear-end collision of the vehicle. In the vehicle, the lower portion 4a and the intermediate portion 4b of the hose 4 enter a large deformation region of the vehicle body 6, and there is a risk that the safety of the fuel filler hose 4 may be impaired.

Further, in order to ensure the safety of the hose 4, reinforcement measures are required in relation to the hose 4, which causes problems of increased vehicle weight and cost.

The present invention has been developed by focusing on these conventional problems, and by arranging at least the lower and middle parts of the fuel filler hose within a range that does not protrude behind the rear axle, the above problems can be solved. It aims to solve the problem.

Hereinafter, the present invention will be explained based on the drawings.

FIGS. 2A and 2B are diagrams showing an embodiment of the present invention.

First, the configuration will be explained.

A fuel tank 3 is mounted under the floor 2 of a rear seat 1 having a backrest 1a, and a lower part 4a of a fuel filler hose 4 connected to the fuel tank 3 is connected to a spring and a shock absorber (not shown) under the floor 2. It is disposed forward of the rear axle 8 supported by.

Then, the middle part 4b of the hose 4, which is continuous with the lower part 4a, is inserted into the wheel house 5 and the rear axle 8.
Further, the upper part 4c of the hose 4 is disposed above the wheel house 5 so as to face the side surface of the vehicle body 6 and cross the wheel house 5, so that the upper end opening 4d of the hose 4 is opened. , facing the filler base 7 on the side of the vehicle body 6.

9 in the figure is a rear wheel. Also, although not shown,
The filler base 7 is provided with a locked fuel lid that can be opened and closed.

Next, the effect will be explained.

Fuel is supplied to the fuel tank 3 through a fuel lid (not shown).

) and inject fuel into the upper end opening 4d of the fuel filler hose 4 facing the filler base 7.

The fuel is passed through the hose 4 from the upper end opening 4d to the upper part 4c1.
The fuel is injected into the fuel tank 3 through the middle part 4b and the lower part 4a.

By the way, when a rear-end collision occurs, eight cars and six
The rear part of the car may undergo a large deformation toward the front.

However, since the fuel tank and the lower part 4a and middle part 4b of the fuel filler hose 4 are arranged in front of the rear axle 8, the rear axle 8 is not affected by the impact deformation force from the rear toward the front. produces a protective function.

Therefore, the fuel tank 3 and the lower portion 4a and intermediate portion 4b of the fuel filler hose 4 are not affected by the deforming force due to the rear collision.

Figures 3A, B, and C show other embodiments.

That is, a shock absorber 10 of the rear suspension and a spring (not shown) are installed upright between the rear axle 8 and the vehicle body 8, and the intermediate portion 4b of the fuel filler hose 4 is connected to the shock absorber 10 on the front side of the vehicle body. It is configured to stand up substantially parallel to the absorber 10.

Therefore, according to this embodiment, the intermediate portion 4 of the hose 4 can withstand the forward impact deformation force in the event of a rear collision.
b, the lower part 4a, and the fuel tank 3 are protected not only by the rear axle 8 but also by the shock absorber 10.

The position of the rear wheel 9' shown by the chain line in FIG. It can be seen that it is arranged above the highest position of the rear wheel 9.

Other configurations and operations are the same as in the previous embodiment.

As explained above, according to the present invention, at least the lower and middle portions of the fuel filler hose are disposed within a range that does not protrude to the rear of the rear axle. It is now possible to place it outside the area where the vehicle body deforms during a collision.

Therefore, deformation and damage during rear-end collisions can be prevented without adding a separate reinforcing structure, thereby increasing vehicle weight and cost, thereby improving safety. can be secured.

In particular, when the fuel filler hose is full of fuel, fuel is often stored in the lower and middle parts of the fuel filler hose, so it is possible to prevent deformation and damage of these parts by using the above-mentioned method. This makes it possible to prevent fuel from leaking from the lower or middle portion of the hose, and therefore has the effect of preventing the occurrence of a fire in the event of a rear collision.

[Brief explanation of drawings]

FIG. 1 shows a conventional example, A is a plan view thereof, B is a side view thereof, FIG. 2 is an embodiment of the present invention, A is a plan view thereof, B is a side view thereof, and FIG. The figures show another embodiment of the present invention, in which A is a plan view thereof, B is a side view thereof, and C is an enlarged perspective view thereof. 1...Rear seat, 2...Floor, 3...
...Fuel pump, 4...Fuel filler hose, 4a...Lower, 4b...
・Middle part, 4c...Top, 4d...Top opening, 5...Wheel house, 6...
・Vehicle body, rear axle, 9...wheel, 10...shock absorber.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A fuel tank is mounted under the floor in front of the rear axle supported by a spring and a shock absorber on the vehicle body, and the lower part of a fuel filler hose that is continuous with the fuel tank is arranged under the floor. At the same time, the middle part of the hose is raised up in the wheel house, and the upper part of the hose is placed in the upper part of the wheel house so as to face the side of the vehicle body, and the upper end opening of the hose is placed in the rear part of the rear axle. In the piping structure of the fuel filler hose that faces the filler base provided on the side of the vehicle body, the lower part that is continuous with the fuel tank and the middle part that rises above the wheels in the vertical direction of the vehicle body are connected to the front side of the vehicle body from the rear axle. A piping structure for a fuel filler hose, characterized in that the upper end of the intermediate portion is bent and the upper end thereof is connected to the upper end opening. 2. The piping structure for a fuel filler hose according to claim 1, wherein the shock absorber is disposed rearward from the intermediate portion of the fuel filler hose.