JPH0619385Y2 - Piping structure of fuel supply path - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention is directed to a fuel supply passage for supplying fuel from a fuel tank provided at a rear portion of a vehicle body to an engine side provided at the front of the vehicle body. Related to piping structure.

(Prior Art) As shown in FIG. 7, a two-box type wagon vehicle is provided with a cabin 2 mounted and fixed on a vehicle body frame 1, and is not shown in the rear portion of the vehicle body. A fuel tank is provided, and a fuel supply path 3 for supplying fuel to an engine side (not shown) provided in the front portion of the vehicle body is provided along the vehicle body frame 1.

In such a vehicle, when a collision occurs as shown in FIG. 8, the cabin 2 moves forward with respect to the vehicle body frame 1.

At this time, the fuel supply passage 3 is provided as shown in FIG. 9, and the front fuel pipe 4 extending from the engine side is fixed to the cabin 2 side by a clip or the like not shown, The rear end portion is extended to the rear side of the wheel house 5. The rear fuel pipe 6 extending from the fuel tank extends forward along the vehicle body frame 1 and is fixed to the vehicle body frame 1 by a clip (not shown). The front end of the rear fuel pipe 6 extends to the rear side of the wheel house 5 and is located close to the rear end of the front fuel pipe 4. And
An elastic fuel hose 7 is connected to the ends of the front and rear fuel pipes 4 and 6.
Since the fuel hose 7 is provided with a sufficient length, the fuel pipes 4 and 6 can be kept connected to each other when the cabin 2 moves forward as described above.

However, it is difficult to provide the fuel hose 7 having a marginal dimension for deformation in the portion of the wheel house 5 described above because of the arrangement of the driving parts, and it is not possible to secure a marginal dimension for sufficient deformation.

(Problems to be Solved by the Invention) As described above, the rear fuel pipe extending from the fuel tank provided in the rear portion of the vehicle body and the front fuel pipe extending from the engine side provided in the front portion of the vehicle body The front fuel pipe is fixed to the cabin, the rear fuel pipe is fixed to the vehicle body frame, the front and rear fuel pipes are connected by a fuel hose near the wheel house of the vehicle body. The fuel hose is extended with an allowance so that the front fuel pipe along with the cabin is kept connected when it is moved forward.
Wheels, suspensions, and the like are provided near the wheel house, and it is difficult to sufficiently secure the above-mentioned allowance for providing the fuel hose.

This invention was made in view of the above-mentioned problems, and it is arranged so as to avoid moving parts around the wheel house and the like, and a sufficient margin dimension can be provided for the connecting means for absorbing the deformation amount. The purpose is to provide a piping structure.

[Constitution of device]

(Means for Solving the Problems) This invention is a ladder-type frame having a pair of side members extending in the front-rear direction of a vehicle and a plurality of cross members connected between the side members and extending in the vehicle width direction. And a vehicle body consisting of a cabin mounted and fixed on this frame, with a rear fuel pipe fixed and extending forward from the fuel tank side provided at the rear part of the vehicle body to the inside of the one side member, and The rear fuel pipe is extended rearward along the inner side of the one side member in a state where the partial fuel pipe is fixed to the cabin side from the engine side of the vehicle, and the front end of the rear fuel pipe and the rear end of the front fuel pipe are The connecting means, which is interposed between the side member and the cross member, has a margin portion that is elastically deformable in the front-back direction. It is a piping structure of a fuel supply passage, which is provided near the rear of the member.

(Embodiment) A first embodiment of the present invention will be described with reference to FIGS. Side members 8 indicated by chain lines in the figure are provided on the left and right of a vehicle body (not shown) along the front-rear direction of the vehicle body. The side member 8 shown in the figure is provided on the left side of the vehicle body, and the cross member 9 oriented in the vehicle width direction is joined thereto. A cabin 11 that forms a passenger compartment or the like is formed on a vehicle body frame 10 that includes the side member 8 and the cross member 9.
Is provided. Further, an engine (not shown) is provided on the front side of the vehicle body, and a fuel tank (not shown) is provided on the rear side of the vehicle body. Further, from the engine side, a front fuel pipe 12 fixed to the cabin 11 by a clip or the like (not shown) is provided. The front fuel pipe 12 extends rearward along an inner side surface of the side member 8 in the vehicle width direction and a first front fuel pipe 14 extending along the wheel house 13 of the cabin 11 and crosses the cross member. Member 9
It has a second front fuel pipe 15 whose rear end is located on the rear side, and a fuel hose 16 which connects the first and second fuel pipes 14 and 15 near the wheel house 13. ing. Here, the fuel pipe 16 is not provided with a margin dimension as in the conventional one, but is simply to connect both pipes with elasticity.

On the other hand, a rear fuel pipe 17 is connected to the fuel tank (not shown). The rear fuel pipe 17 is joined along the inner side surface of the side member 8 in the vehicle width direction and extends forward. The front end of the rear fuel pipe 17 is extended to the vicinity of the rear end of the second front fuel pipe 15, and each end is extended such that the rear fuel pipe 17 side is located on the lower side. Of the end of the cross member 9 in the vicinity of the rear of the cross member 9 inward in the vehicle width direction.
It is bent to form an angle of °. Further, fuel hoses 18 and 19 having a sufficient margin are connected to the respective ends. The same fuel filter 2 is attached to the ends of these fuel hoses 18 and 19.
0 connection portions are connected to each other.

That is, as shown in FIG. 2, the fuel filter 20 and the fuel wheel houses 18 and 19 form a substantially U-shaped detour having elasticity. As a result, even if the front fuel pipe 12 is moved along with the movement of the cabin 11, the front fuel pipe 12 is moved as shown by the chain line in FIGS. 1 and 3, and the movement amount is the elastic deformation of the fuel hoses 18, 19. Is set to occur within the range of.

By being configured in this way, there are the effects described below.

First, the fuel hose 16 has been provided with a marginal dimension at a position where a drive device near the wheel house 13 is close in the past. Since it is provided in the vicinity of the rear of the member 9, it is possible to increase the dimension of the marginal dimension (marginal portion) of the connecting means (fuel hoses 18, 19) that is elastically deformable without being influenced by surrounding parts.

Therefore, even if the vehicle body is greatly deformed due to a collision or the like, the fuel hoses 18 and 19 are not damaged, and the fuel hoses 18 and 19 are not detached from the rear fuel pipe 17 or the front fuel pipe 12. Since there is no fuel, the outflow of fuel can be effectively prevented.

Secondly, since the connecting means composed of the fuel hoses 18 and 19 and the fuel filter 20 is provided in the vicinity of the rear of the cross member 9, it is guarded by the cross member 9 and collides with flying stones or the road surface while the vehicle is running. It is possible to effectively prevent the interference of protrusions and the like.

Further, when a vehicle collides, various drive system components may move rearward relative to the vehicle body frame 10 due to deformation of the vehicle body. Since the cross member 9 is provided, it can be prevented from being guarded by the cross member 9 and buffering with the drive system components.

Further, since the strength of the connecting portion of the cross member 9 and the side member 8 is stronger and harder to deform than in other places, the connecting means provided at this position is less likely to be deformed by an external force.

Therefore, during traveling and at the time of collision, the connecting means is not destroyed by flying stones or other parts or by any external force, so that the outflow of fuel can be effectively prevented.

Thirdly, since the step of connecting the fuel filter 20 has been performed conventionally, the above effect can be obtained without increasing the number of steps.

Fourthly, since the connecting means only needs to be provided inside the side member 8 and near the rear of any one of the plurality of cross members 9, the degree of freedom in designing the mounting position is significantly improved. There is also an effect to do.

The second embodiment of the present invention will be described below with reference to FIG. 4, but the basic structure thereof is the same as that of the above-mentioned embodiment, and therefore only different points will be denoted by new reference numerals.

A front fuel pipe 12 extending from the engine side (not shown) is provided on the inner surface of the side member 8 in the vehicle width direction shown in the drawing. The front fuel pipe 12 is composed of a first front fuel pipe (not shown), a second fuel pipe 15, and a fuel hose 16 that connects both pipes 14 and 15, and the first front fuel hose is It is fixed to a cabin not shown. Then, the second fuel pipe 15
The rear end side is extended rearward along the inner side surface of the side member 8, is extended to the rear vicinity of the cross member 9, and is bent inward in the vehicle width direction at an angle of approximately 90 °.

On the other hand, a rear fuel pipe 17 extending from a fuel tank (not shown) is fixed and extended along the inner side surface of the side member 8 in the vehicle width direction, and its end portion is located behind the second front fuel pipe 15. It extends to a position facing the end and is bent inward in the vehicle width direction at an angle of about 90 °. The rear end of the second front fuel pipe 15 and the front end of the rear fuel pipe 17 are connected by an elastic fuel hose 21. The fuel hose 21 is connected by being bent into a substantially U shape, and a sufficient margin can be obtained by freely adjusting the length thereof. Here, since the position where the fuel hose 21 is provided is not provided with a driving component or the like in the periphery, it is possible to perform a design having a sufficient required length. Further, since it is close to the cross member 9, it can be prevented from being damaged by an external force.

Hereinafter, a third embodiment of the present invention will be described with reference to FIG. 5, but the basic structure thereof is substantially the same as that of each of the above-mentioned embodiments, and therefore only different points will be described. The front end of the fuel hose 22 is connected to the rear end of the second front fuel pipe 15 extending along the side member 9.
The fuel hose 22 is bent in a substantially Z shape and is extended from the rear side.
Is connected to the front end of. With this configuration, even if the second front fuel pipe 15 is moved by the forward movement of the cabin (not shown), the fuel hose 22 can be moved so as to be unfolded.
The connection of the fuel pipes 15 and 17 can be sufficiently maintained. Further, since it can be provided in a state along the side member 8, the arrangement position is not greatly restricted, and a free design can be performed.

A fourth embodiment of the present invention will be described below with reference to FIG. A front fuel pipe 12 extends rearward on the inner side surface of the side member 8 in the vehicle width direction shown in the drawing. The front fuel pipe 12 extends from the engine side (not shown) provided in the front portion of the vehicle body and is fixed to the cabin side (not shown). A rear fuel pipe 17 extends from a fuel tank (not shown) provided at the rear of the vehicle body, and extends forward along the inner surface of the side member 8 in the vehicle width direction. The rear end of the front fuel pipe 12 is located above the front end of the rear fuel pipe 17, and is bent downward in a U-shape. The front end portion of the rear fuel pipe 17 is extended forward of the bent rear end portion of the front fuel pipe 12 and is bent upward in a U-shape. It is located so as to face the rear end of the vehicle. The ends of the fuel pipes 12 and 17 are connected by a fuel hose 23 having elasticity.

With this configuration, even when the front fuel pipe 12 fixed to the cabin is moved in the front-rear direction when the cabin is displaced relative to the vehicle body frame 10, the fuel hose 23 is By elastically deforming, the connection between the fuel pipes 12 and 17 can be maintained. Also, the fuel pipes 12, 1
Since the connection structure by the fuel hose 23 of 7 is provided within the range of the side surface of the side member 8, there is no need to consider surrounding parts, and the arrangement can be made with a high degree of freedom.

[Effect of device]

As described above, when the cabin is deformed with respect to the vehicle body frame due to a collision, the connecting means for connecting the front and rear fuel pipes is provided around the inside of the side member having no driving parts and the vicinity of the rear of the cross member. Since the size of the elastically deformable margin can be increased by providing the elastic deformation, the fuel can be effectively prevented from flowing out even when the deformation is large.

Further, since the connecting means is provided in the vicinity of the rear of the cross member, it is possible to prevent flying stones and other drive system components from interfering with the connecting means during traveling or collision, and the connecting means is damaged by an external force. The fuel does not leak out.

Further, since this connecting means may be provided inside the side member and near the rear of any one of the cross members, the degree of freedom of the mounting position can be increased.

[Brief description of drawings]

FIGS. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a plan view showing a state in which a fuel oil supply passage is piped to a vehicle body frame, and FIG. 2 is II- in FIG. II
FIG. 3 is a side view showing the piping structure of the fuel supply path to the vehicle body frame shown in FIG. 1, and FIG. 4 is a plan view showing the essential parts of the second embodiment of the present invention. 5 is a side view showing an essential part of a third embodiment of the present invention, FIG. 6 is a side view showing an essential part of a fourth embodiment of the present invention, and FIG. 7 is a side view of a two-box type wagon vehicle. FIG. 8 is a side view showing a state in which a two-box type wagon vehicle has collided, and FIG. 9 is a side view showing a deformed state of piping of the fuel supply passage when the cabin moves with respect to the vehicle body frame when the vehicle collides. It is a figure. 10 ... Frame of vehicle body, 12 ... Front fuel pipe, 17 ... Front fuel pipe, 18, 19 ... Fuel hose (connecting means), 20 ... Fuel filter (connecting means).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Keinosuke Takemae 5-33-8, Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation (56) Bibliographic references Sho 54-14821 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A ladder-type frame having a pair of side members extending in the front-rear direction of a vehicle and a plurality of cross members connected between the side members and extending in the vehicle width direction, and mounted and fixed on the frame. A vehicle body composed of a cabin, a rear fuel pipe fixed to the inside of the one side member and extending forward from the fuel tank side provided at the rear of the vehicle, and the cabin of the cabin from the engine side of the vehicle. A front fuel pipe extending rearward along the inside of the one side member in a state of being fixed to the side, and a front end of the rear fuel pipe and the front end of the rear fuel pipe inside the side member and near the rear of the cross member. A connecting means that is interposed between the front end of the front fuel pipe and the rear end of the front fuel pipe and has a margin portion that is elastically deformable in the front-rear direction. Piping structure of a fuel supply passage, characterized in that it comprises a.