JPH0616095A - Drain pipe mounting structure for automobiles - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent clogging of the drain pipe attached to the fuel supply port of an automobile due to mud or freezing. [Structure] Cutout 12 diagonally cut out at the bottom of the bumper
The drain pipe 5 formed at the tip is attached to the bumper 7 with the bracket 8 immediately above the cut 12 or at the cut.
Twelve tips were fixed. Since it is fixed to the bumper 7 at a position shifted from the cut 12 of the drain pipe 5, the cut 12
The shape does not change and the opening remains large, so it is difficult for water and mud to collect. Therefore, no inconvenience occurs during fuel supply.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to vehicles such as automobiles and motorcycles that use liquid such as gasoline as fuel.
The present invention relates to a drain pipe mounting structure for an automobile, which is applied to a structure in which a drain port is provided close to a fuel supply port.

[0002]

2. Description of the Related Art Generally, as shown in FIGS. 11 and 12, a rear portion 1 of a vehicle is provided with a recess 3 covered with a lid plate 2 and a fuel supply port 4 having a lid therein. .
The recessed portion 3 prevents gasoline or the like that overflows at the time of fuel injection from directly contacting the painted surface of the body surface. The liquid accumulated in the recess 3 may be wiped off, as shown in FIG.
As shown in FIG. 1, there is a pipe provided with a drain pipe 5. Since many things that pass through the drain pipe 5 are combustible such as gasoline, keep them away from the muffler 6 that generates heat, or to prevent fuel from directly splashing on the tires (anti-slip), the outlet of the drain pipe 5 Is near the ground, such as under the bumper 7 (see FIGS. 13 and 14).

As shown in FIGS. 14 to 16, the end portion of the drain pipe 5 is fixed to the lower portion of the bumper 7 with a screw 9 via a bracket 8 so that a new projection is not formed by the attachment. The end portion of is shaped like a circular cross section and is aligned with the mounting end surface of the bracket 8. In Japanese Utility Model Publication No. 57-43729, the fixed position of the pipe is set farther from the end of the pipe, and a vertically long cut is made at the opening end to prevent the pipe from clogging, but the rigidity is weakened.

By adding the drain pipe 5 as described above, even if overflowed gasoline or the like is accumulated in the recess 3 at the time of fuel injection, the drain pipe 5 causes the gasoline to flow down below the vehicle body. Further, even when it is raining, washing the vehicle, etc., the drain pipe 5 can drain the water that has entered the recess 3 to the lower side of the vehicle body.

[0005]

By the way, in the conventional drain pipe 5 mounting structure, the end portion of the drain pipe 5 is cut into a circular shape, so that the sectional area is the smallest. Further, since the structure is such that the tip of the drain pipe 5 is crimped by the bracket 8, the diameter of the drain pipe 5 may be further reduced due to excessive force. As shown in FIG. There is a possibility that the water will remain due to surface tension and the like, and the water will become poor.

Further, since the tip of the drain pipe 5 is close to the road surface and is in a position easily affected by the water from which the tire is wound up, the wound water and mud are collected at the end of the drain pipe 5, and The smaller the opening at the end, the easier it is to clog. Further, if water droplets remain in the drain pipe 5, it will freeze in the winter and clog the drain pipe 5. Then, even if water penetrates into the concave portion 3 due to rain or snow, the water cannot be drained, which causes inconvenience during refueling.

It is an object of the present invention to provide a drain pipe mounting structure for an automobile which prevents clogging due to mud, freezing and the like.

[0008]

In order to achieve the above object, the present invention provides a drain pipe having a diagonally cut-away cut end formed at the lower end of a bumper, and a bracket fixed to the bumper, wherein It is characterized by fixing the point just above or the cut end.

Further, a drain pipe having a substantially funnel-shaped spread pipe connected to the lower end of the bumper and having an opening at its tip larger than the connecting portion is fixed to the bumper by an attachment portion formed on the outer periphery of the tip edge of the spread pipe. It is characterized by having done.

[0010]

Since the present invention is constructed as described above, the drain pipe disposed inside the bumper is protected from obstacles due to the unevenness of the road. Also, since it is fixed to the bumper at a position displaced from the cut of the drain pipe, the shape of the cut does not change even if tightening force is applied to the outer periphery of the drain pipe, and the opening remains large, so water and mud do not collect easily . Also, in winter, even if the water attached to the tip of the cut edge freezes and the ice grows large, the cut edge is slanted so that it is difficult to be clogged.

The drain pipe connected to the spread pipe is also protected from obstacles due to the unevenness of the road. In addition, since the opening at the tip is large, water and mud do not collect easily, and ice caused by freezing does not clog the drain pipe.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 and 2, the drain pipe 5 is attached to a plate 11 formed inside the lower portion of the bumper 7 via a bracket 8 and is placed at a position apart from a muffler, tires and the like. The tip of the drain pipe 5 is obliquely cut, and the cut end 12 has an elliptical shape.
Since the mounting portion 8a of the bracket 8 is located at the lower end of the bumper 7, a distance corresponding to the length of the clip portion 8b and the cut end 12 is provided.

The bracket 8 is attached to the bumper 7 with a screw 9
Is fixed by the bumper 7 on the opening side of the clip portion 8b.
Facing the wall of the. The drain pipe 5 has a clip portion 8b
It is installed so that the tip of the cut 12 is along the wall surface of the bumper 7. As a result, the cross-section area of the cut end 12 is large even if the tightening force of the clip portion 8b is strong.
The influence of the surface tension of is reduced, and the residue of the water drop 10 can be reduced. Therefore, mud clogging and freezing are less likely to occur. In addition, as shown in FIG. 3 and FIG.
You can increase the cross-sectional area by notching 12 for an arbitrary length without making it an elliptical shape, and even if there is a water drop 10, it will be guided to the tip of the cut end 12, so it will prevent clogging. There is.

Next, another embodiment will be described with reference to FIGS. This feature is that the guide claw 13 is formed on the bracket 8. On both sides of the guide claw 13, holding claws 14,
14 is formed and the guide claws 13, 14 and 14 are directed upward so as to face the cut 12 of the drain pipe 5, and the bumper 7 is formed.
Mounted on. In the embodiment, since the lower portion of the bracket 8 projects from the bumper 7, it is possible to shift the bending position of the plate 11 so that the lower ends are aligned as shown by the chain double-dashed line in FIG. The drain pipe 5 has guide claws 13 inserted therein and is fixed by the claws 14 on both sides. Since the water droplet 10 flowing down inside the drain pipe 5 flows along the guide claw 13, the water droplet 10 is prevented from remaining inside.

Further, as shown in FIGS. 8 and 9, a substantially funnel-shaped spread pipe 15 having a larger opening at the tip is attached to the tip of the drain pipe 5, and the inner diameter of the tip is increased to influence the surface tension or the like. It may be removed. A mounting portion 15a is formed on the tip edge of the spread pipe 15, and an unevenness 16 is formed inside the connecting portion 15b of the spread pipe 15.
Is formed, and is fitted to the similar unevenness 16 formed on the outer periphery of the tip of the drain pipe 5. In this configuration, the spread pipe 15 also serves as a mounting bracket. Further, as shown in FIG. 10, the shape of the unevenness 16 is provided on one of the inner circumference and the outer circumference depending on the insertion method. Also, if a one-way valve 17 is provided at the tip of the spread pipe 15,
Intrusion of water and dust from below can be prevented, and clogging of the drain pipe 5 can be prevented.

[0015]

Since the present invention is configured as described above, the shape of the cut end of the drain pipe is
It is possible to prevent clogging of water, mud, etc., and also to prevent clogging due to freezing. Therefore, no inconvenience occurs during fuel supply. Moreover, since the tip of the drain pipe is fixed, it is not easily affected by vibration.

Since the drain pipe connected to the spread pipe also has a large opening, it is possible to prevent clogging of water, mud, etc., and also to prevent clogging due to freezing.

[Brief description of drawings]

FIG. 1 is a development view showing an attachment structure of a drain pipe for a vehicle according to an embodiment of the present invention.

FIG. 2 is a side view showing a mounting structure of a drain pipe for a vehicle according to an embodiment.

FIG. 3 is a perspective view showing a mounting structure of the drain pipe of the embodiment.

FIG. 4 is a side view showing the drain pipe mounting structure of the embodiment.

FIG. 5 is a development view showing a mounting structure of a drain pipe for an automobile according to another embodiment.

FIG. 6 is a perspective view showing a mounting structure of a drain pipe for an automobile according to another embodiment.

FIG. 7 is a side view showing a drain pipe mounting structure of another embodiment.

FIG. 8 is a development view showing a drain pipe mounting structure using a spread pipe of another embodiment.

FIG. 9 is a sectional view showing a drain pipe mounting structure using a spread pipe of another embodiment.

FIG. 10 is a sectional view showing a drain pipe mounting structure using a spread pipe of another embodiment.

FIG. 11 is a perspective view showing a fuel supply port provided in a conventional automobile.

FIG. 12 is a side view of a rear portion of a vehicle showing a fuel supply port provided in a conventional vehicle.

FIG. 13 is a perspective view showing a drain pipe arranged in a bumper of a conventional automobile.

FIG. 14 is an explanatory diagram showing a positional relationship between a drain pipe and a muffler of a conventional automobile.

FIG. 15 is a rear view showing a conventional drain pipe mounting structure arranged in an automobile.

FIG. 16 is a perspective view showing a conventional drain pipe mounting structure arranged in an automobile.

FIG. 17 is a sectional view showing a drain pipe mounting structure arranged in a conventional automobile.

[Explanation of symbols]

 5 Drain pipe 7 Bumper 8 Bracket 12 Cut end 15 Spread pipe 15a Mounting part 15b Connection part

Claims (2)

[Claims] 1. A drain pipe having an obliquely cut end formed at the tip thereof is arranged at the lower end of the bumper, and a bracket fixed to the bumper fixes a portion just above the cut end or a tip of the cut end. Drain pipe mounting structure for automobiles. 2. A drain pipe having a substantially funnel-shaped spread pipe connected to a lower end of the bumper, the opening of which is larger than a connecting portion, is fixed to the bumper by a mounting portion formed on an outer periphery of a tip edge of the spread pipe. Drain pipe mounting structure for automobiles characterized by the above.