JPH0313086B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seal structure for a fuel inlet portion for injecting heat into a fuel tank in an automobile, etc., and particularly relates to a seal structure for a fuel inlet portion extending from a fuel tank and sealing a wheel house inner opening. The fuel inlet box extends across the space between the inner wheel house and the outer wheel house, and has a leading end protruding from the outer wheel house opening facing into a fuel inlet box disposed between the opening and the quarter panel. This invention relates to an improvement in the seal structure of a fuel inlet section equipped with a fuel filler pipe.

Conventionally, it extends from a fuel tank, passes through an inner wheel house opening, crosses a space between the inner wheel house and the outer wheel house, and has a distal end extending from the outer wheel house opening to connect the opening and the quarter panel. There is a fuel inlet portion structure including a fuel filler pipe that projects into a fuel inlet box disposed therebetween.

In such a fuel inlet structure, the inner end opening of the fuel inlet box and the wheel house outer opening are sealed with a cylindrical rubber member or the like, and this sealing member or the fuel inlet box A structure is adopted in which the opening of the fuel tank or the wheel house outer opening and the outer periphery of the tip of the fuel filler pipe are sealed with a cylindrical fuel tank pipe shield.

However, in the fuel inlet structure as described above, since the fuel filler pipe is not sealed at a position between the wheel house inner opening and the wheel house outer opening, However, there was a problem in that the fuel filler pipe became dirty due to mud splashing from the tires.

Furthermore, although the fuel tank is normally located at the rear of the vehicle, in automobiles with a structure in which the engine is mounted at the rear of the vehicle, the inside of the wheel house is the engine room, so heat or noise from inside the engine room is There is a problem in that there is a possibility that the water may enter the wheel house through the wheel house inner opening and be transmitted from there into the vehicle interior.

This invention was made in view of the above-mentioned problems, and is capable of protecting the fuel filler pipe that passes through the inside of the wheel house from splashing mud, etc. An object of the present invention is to provide a sealing structure for a fuel inlet portion that prevents heat and sound from being transmitted into the vehicle interior from the engine room.

This invention extends from the fuel tank,
a fuel inlet box that passes through the inner wheel house opening, crosses the space between the inner wheel house and the outer wheel house, and has a tip extending from the outer wheel house opening and is disposed between the opening and the quarter panel; In a sealing structure of a fuel inlet portion including a fuel filler pipe that faces inward and projects, an outer end is connected to the wheel house outer opening, and an inner end is connected to the wheel house inner opening. The above object is achieved by providing a bellows-shaped shield that is connected and arranged between the inner wheel house and the outer wheel house, surrounding the fuel filler pipe.

Further, in the sealing structure of the fuel inlet portion, the present invention includes a cylindrical fuel tank pipe shield that seals the outer end of the shield between the wheel house outer opening and the tip end of the fuel filler pipe. The above objective is achieved by connecting to the inner end of the.

Further, in the sealing structure of the fuel inlet portion of the present invention, the inner end of the fuel filler pipe is connected to the periphery of the wheel house inner opening together with a ring-shaped fuel filler pipe shield support plate. This achieves the above objective.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, this embodiment extends from the fuel tank 1, passes through the opening 2A of the wheel house inner 2, and is located between the wheel house inner 2 and the wheel house outer 3. A fuel filler extends across the space and protrudes from the opening 3A of the wheel house outer 3 with its tip 4A facing into the fuel inlet box 6 disposed between the opening 3A and the quarter panel 5. In the sealing structure of the fuel inlet portion including the pipe 4, the outer end 7A is connected to the opening 3A of the wheel house outer 3, and the inner end 7B is connected to the opening 2A of the wheel house inner 2. , a bellows-shaped shield 7 is provided between the wheel house inner 2 and the wheel house outer 3, surrounding the fuel filler pipe 4.

The outer end 7A of the shield 7 is connected to the inner end 8A of a cylindrical fuel tank pipe shield 8 that seals between the opening 3A of the wheel house outer 3 and the tip 4A of the fuel filler pipe 4. ing.

The outer end of this fuel tank pipe shield 8 is connected to the outer end 9A of a cylindrical shield 9 that connects the opening 6A of the fuel inlet box 6 and the opening 3A of the wheel house outer 3.
It is connected around the opening 6A of the fuel inlet box 6 via.

Further, the inner end 7B of the shield 7 is tightened and fixed inside the opening 2A of the wheel house inner 2 by a bolt 11 and a weld nut 12 via a ring-shaped fuel filler pipe shield support plate 10. ing.

Reference numeral 13 in the figure is a fuel inlet cap, 14 is a fuel lid, and 15 is for maintaining the inner end of the cylindrical shield 9 in a circular shape to maintain the state of engagement with the opening 3A of the wheel house outer 3. Each shows a fuel inlet box ring.

Here, the materials of the shield 7, fuel tank pipe shield 8, and cylindrical shield 9 are rubber, synthetic resin, and rubber, respectively.

In this embodiment, in the wheel house,
Since the outer periphery of the fuel filler pipe 4 that crosses between the wheel house inner 2 and the wheel house outer 3 is covered with a bellows-shaped shield 7, it is protected from mud splashed by the tires while the vehicle is running. In addition to protecting the fuel filler pipe 8, in vehicles with an engine mounted at the rear of the vehicle, heat and noise from the engine room can be prevented from entering the wheel house and being transmitted from there into the vehicle interior. It can be effectively prevented.

In addition, since the shield 7 is in the shape of a bellows tube, relative errors during installation of the opening 2A of the inner wheel house 2, the opening 3A of the outer wheel house 3, the tip 4A of the fuel filler pipe 4, etc., or the vehicle It deforms elastically in response to displacement due to vibrations during running, and can protect the outer periphery of the fuel filler pipe 4.

In the above embodiment, the outer end 7A of the shield 7 is connected to the outer end of the fuel tank pipe shield 8, but the present invention is not limited to this. Any device that is connected to the vicinity of the opening 3A of the wheel house outer 3 may be used.

Furthermore, in the above embodiment, the inner end 7 of the shield 7
B, together with the fuel filler pipe shield support plate 10, is tightened and fixed to the inside of the outer periphery of the opening 2A of the wheel house inner 2 by bolts 11 and weld nuts 12, but the present invention is not limited to this. No, shield 7
The inner end 7B is the opening 2 of the wheel house inner 2.
It is sufficient if it is connected near A.

Further, in the above embodiment, the material of the shield 7 is rubber, but the present invention is not limited to this, and the relative displacement between the fuel filler pipe 4 and the body side while the vehicle is running, Alternatively, it may be any material that can absorb relative errors during installation.

Since the present invention is configured as described above, it is possible to protect the outer periphery of the fuel filler pipe that traverses the inside of the wheel house from mud etc. thrown up by the tires while the vehicle is running with a simple configuration, and also In a vehicle equipped with an engine, this has the excellent effect of preventing heat, noise, etc. from the engine room from being transmitted into the vehicle interior through the inside of the wheel house.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a part of an automobile to which a fuel inlet seal structure according to the present invention is applied, and FIG. 2 is a perspective view showing an embodiment of the fuel inlet seal structure according to the present invention. FIG. 2 is an enlarged sectional view taken along the - line in FIG. 1; 1...Fuel tank, 2...Wheel house inner, 3...Wheel house outer, 2A,
3A...Opening, 4...Fuel filler pipe, 4A...Tip, 4B...Inner end, 5...Quarter panel, 6...Fuel inlet box, 6A...Opening, 7... ...Shield, 7A...
Outer end, 7B... Inner end, 8... Fuel tank pipe shield, 8A... Inner end, 9... Cylindrical shield, 9A... Outer end, 10... Fuel filler pipe shield support plate.

Claims (1)

[Scope of Claims] 1. Extended from the fuel tank, passes through the wheel house inner opening, crosses the space between the wheel house inner and the wheel house outer, and has a distal end extending from the wheel house outer opening. In a sealing structure of a fuel inlet portion including a fuel filler pipe protruding into a fuel inlet box disposed between the opening and a quarter panel, an outer end thereof is connected to the wheel house outer opening. and an inner end is connected to the wheel house inner opening,
A sealing structure for a fuel inlet portion, characterized in that a bellows-shaped shield is provided between the inner wheel house and the outer wheel house, the shield being arranged to surround the fuel filler pipe. 2. Claims characterized in that the outer end of the shield is connected to the inner end of a cylindrical fuel tank pipe shield that seals between the wheel house outer opening and the fuel filler pipe tip. The seal structure of the fuel inlet section described in item 1. 3. Claim 1 or 2, characterized in that the inner end of the fuel filler pipe is connected to the periphery of the wheel house inner opening together with a ring-shaped fuel filler pipe shield support plate. Seal structure of fuel inlet section as described in section.