JPH053432Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a fuel tank breather tube suitable for facilitating the piping assembly of a fuel tank breather tube in a motorcycle, and improving the aesthetic appearance and maintainability of the fuel tank. Regarding the mounting structure.

[Conventional technology]

An upper breather tube of a fuel tank of a two-wheeled vehicle is provided with a breather tube whose proximal end is attached to a filler cap. The breather tube is used for a breather to equalize the internal pressure of the fuel tank, and its tip side needs to be open to the atmosphere.

The breather tube is made of a rubber material or the like and is relatively elongated, and because it dangles, it is necessary to hold the tip side on the immovable side. Conventionally, the fuel tank was fixed to the frame supporting the fuel tank using a separate mounting member, or the fuel tank was inserted directly into the handle cover to hold it.

[Problem that the invention attempts to solve]

Because the breather tube is long and slender,
As mentioned above, it is necessary to fix the tip side, but fixing it to the frame side etc. has a poor aesthetic appearance and requires time to assemble. In addition, for those that are inserted into the handle cover, it is desirable to insert the tip of the breather tube into the steering stem inside the top bridge, but since the top bridge is covered with the handle cover, the insertion process is difficult and takes time to assemble. In addition, problems such as bending the breather tube occur.

[Means for solving problems]

The present invention solves the above problems, and aims to provide a breather tube mounting structure for a fuel tank in a motorcycle that is easy to assemble, has excellent maintainability, and can improve the aesthetic appearance of the arrangement. The means includes a fuel tank breather tube mounting structure in which a fuel tank is disposed near a handle cover that covers a handle pipe supported on a top bridge that holds a steering stem, and a fuel tank breather tube mounting structure in which a fuel tank is provided near a handle cover that covers a handle pipe supported by a top bridge that holds a steering stem, and a fuel tank breather tube is mounted on a lower surface of the handle cover that substantially faces the steering stem. an insertion part that is provided to protrude and into which the breather tube can be inserted; and a guide whose proximal end side is integrally attached to the insertion part and whose distal end side is arranged to extend toward the steering stem, into which the breather tube can be inserted loosely. It is characterized by consisting of a tube.

[Effect]

When the leading end of the breather tube, which has its base side mounted on the filler cap of the fuel tank, is attached to the insertion portion of the steering wheel cover and pushed in, the breather tube is placed at a desired position on the steering stem side. In other words, it is sufficient to simply insert the breather tube into the handle tube, which improves ease of assembly, and allows the breather tube to be arranged neatly in the center of the vehicle, thereby improving the aesthetic appearance of the arrangement.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, frames 2, 3, and 4 are welded to the head pipe 1. A fuel tank 7 provided with a decorative plate 5 that also serves as an air guide is fixedly supported by the frame 2, etc., although it is not clearly shown in the figure. A filler cap 8 is removably provided in the upper part of the fuel tank 7. The breather tube 9 is disposed with one end thereof attached to the filler cap 8.

On the other hand, a hollow tubular steering stem 10 is pivotally supported within the head pipe 1, and the steering stem 10 is fixed to the top bridge 11 with a nut 13 via a washer 12. Also cap 2
6 is screwed onto the nut 13 to protect it.
Note that a hole having approximately the same diameter as the inner diameter of the steering stem 10 is formed in the cap 26. Therefore, the steering stem is freely disposed upward in the figure. A handle pipe 18 attached to the handle (shown in FIG. 3) 14 is supported by the top bridge 11, although not clearly shown, and is held by a handle holder 16 (partially shown in FIG. 3). Note that the handle holder 16 is fixed to the top bridge 11 side with a bolt 17.

A handle cover 19 is provided above the handle holder 16. The handle cover 19 protrudes from the front side of the vehicle and has a top bridge 11, a nut 13,
It is formed of a front part 19A that covers the cap 26, etc., and an upper part 19B that covers the handle holder 16, handle pipe 18, etc., and is fixed to the handle holder 16 side with bolts 15 etc. as shown in FIG. A pair of front fork pipes attached to the head pipe 1 (only one is shown in the diagram) 20
and top bridge 11 and bottom bridge 21
and is configured to rotate as the handle is rotated. Also front fork pipe 20
In between, the headlight 22 is connected to support bands 23 and 24.
Fixed by Upper part 1 of handle cover 19
At a position on the inner surface of 9B almost facing the steering stem 10, there is an insertion part 2 that protrudes toward the inside.
7 is formed. The circular hole 28 of the insertion portion 27 is formed in a size that allows the breather tube 9 to be inserted therein. The guide tube 29 has one end fitted into the insertion portion 27 and supported in a hanging manner, and the other elongated end is inserted into the steering stem 10 through the opening of the cap 26. Since an appropriate gap is formed between the position where the insertion portion 27 is formed and the outer periphery of the handle pipe 18, the guide tube 29 is smoothly inserted into the steering stem 10.

With the above structure, just by inserting the breather tube 9 into the inner hole 28 of the insertion part 27, it can be made to face the steering stem 10 side. Also filler cap 8 and handle cover 1
Since the breather tube 9 is disposed at the center of the vehicle, the breather tube 9 is disposed so as to span both at the center of the vehicle.

In this embodiment, the guide pipe 29 is arranged vertically hanging down as shown in the figure.
7 and the steering stem 10, it may be introduced into the steering stem 10 with some bending.

[Effect of idea]

As is clear from the above description, the present invention provides the following effects.

A. By simply inserting the end of the breather tube into the insertion part of the handle cover located relatively close to the fuel tank, the guide tube attached to the insertion part allows the breather tube to be smoothly guided to the steering side, making assembly work extremely easy. done quickly.

B. Maintenance can be done extremely easily by simply pulling out the breather tube from the handle cover.

C. Since the breather tube is installed between the handle covers of the filler cap disposed in the center of the vehicle, the aesthetic appearance of the arrangement is improved.

D. It has a simple structure and can be implemented at low cost.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a partial sectional view showing details of the main parts of the embodiment, and FIG. 3 is a plan view taken in the direction of the arrows in FIG. 1... Head pipe, 2, 3, 4... Frame, 7... Fuel tank, 8... Filler cap, 9... Breather tube, 10... Steering stem, 11... Top bridge, 12...
Washer, 13...Nut, 14...Handle, 14, 17...Bolt, 16...Handle holder, 18...Handle pipe, 19...Handle cover, 19A...Front part, 19B...Upper part,
20...Front fork pipe, 21...Bottom bridge, 22...Hed light, 23, 24
... Support band, 26 ... Cap, 27 ... Insertion part, 28 ... Inner hole, 29 ... Guide tube.

Claims (1)

[Claims for Utility Model Registration] In a fuel tank breather tube mounting structure in which a fuel tank is disposed near a handle cover that covers a handle pipe supported on a top bridge that holds a steering stem, the handle substantially faces the steering stem. an insertion part protruding from the lower surface of the cover into which the breather tube can be inserted; a proximal end of the insertion part is integrally attached to the insertion part, and a distal end thereof is arranged to extend toward the steering stem; A breather tube mounting structure for a fuel tank, characterized by comprising a guide tube that can be loosely inserted;