JPH11180170A - Leaked fuel guide for power working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fire and ensure safety of workers as will as to prevent break down or damage of an engine portion, by preventing a leaked fuel from a fuel filler of a fuel tank of a power working machine or the like from flowing in the direction toward an engine portion or the like. SOLUTION: The entire configuration of this guide is in an near strip shape, a passage hole 2 is provided near one end 1a thereof that is fit to a fuel filler 4a of a fuel tank 4, and an almost U-shaped rib 3 is configured from the periphery of the end 1a to the both side edges. An opening 1c without a rib at the other end 1b is made to be fit to the external shape of a side 4c opposite to the main body of the internal combustion engine of the fuel tank 4. Preferably, the entire guide is made by a soft material such as rubber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel leakage guide for a power working machine equipped with an internal combustion engine such as a brush cutter, a power blower, a hedge trimmer and the like.

[0002]

For example, various power working machines such as a brush cutter, a power blower, a hedge trimmer and the like have an internal combustion engine (hereinafter referred to as "engine") such as a small air-cooled two-cycle gasoline engine as a power source. Is installed.

If a shortage of fuel occurs during the operation of the power working machine, it is necessary to refuel the fuel tank of the engine. However, engine, exhaust muffler
If the fuel tank is heated to a high temperature, the fuel may leak from the fuel tank inlet to the high temperature area, causing a fire or a fire injury.

[0004] Further, not only high temperature parts such as the engine and the exhaust muffler, but also an air cleaner, a recoil starter,
If fuel leaks to the ignition device, other wiring, etc., it causes various failures and damages.

[0005] The fuel leakage from the fuel inlet is as follows.
Not only at the time of refueling, but also when the cap of the fuel tank is loosened due to vibration or the like while the work is continued or when the cap is not completely closed.

The present invention has been made in view of the above circumstances, and the fuel leaking from the fuel injection port is used for an engine, an exhaust muffler, an air cleaner, a recoil starter, an ignition device, other wirings, etc. (Referred to as "engine section") to prevent fire and ensure worker safety, and to prevent failure and damage of the engine section and the like due to leaked fuel. .

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 has a substantially rectangular shape as a whole, and has a through hole near one end thereof which is adapted to a fuel inlet of a fuel tank. A substantially U-shaped rib is formed from the peripheral edge of the one end to both side edges, and the rib-free opening at the other end has an outer shape on the side opposite to the side where the fuel tank is attached to the internal combustion engine body. It is a configuration that can be adapted.

According to the first aspect of the present invention, the fuel leaked from the fuel inlet at the time of refueling or the like does not reach the engine section or the like. That is, the fuel leaked from the fuel inlet by the action of the ribs provided in a substantially U-shape from the peripheral edge of the one end to both side edges is guided to the side opposite to the engine section and the like, and is discharged. Guide displacement can also be prevented.

According to a second aspect of the present invention, the whole is made of a flexible material such as rubber, plastic or the like (hereinafter referred to as "rubber or the like"). According to the second aspect of the present invention, it is easy to fit the through hole to the fuel inlet of the fuel tank. Further, even after the fuel tank is mounted, the fuel tank easily fits into the fuel inlet and the mounting side face of the fuel tank. Even if a finger touches at the time of opening and closing, it is not easily deformed and disturbed, and therefore, even if it is strongly touched accidentally, there is no risk of damaging the finger.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below. FIG. 1 is an exploded perspective view of a mounting portion of a leaking fuel guide of a power working machine according to an embodiment of the present invention, and FIG.
FIG. 3 is a perspective view when the present embodiment is applied to a brush cutter as an example of a power working machine, and FIG. 3 is a front view showing a fuel supply state.

A brush cutter as an example of a power working machine is shown in FIG.
As shown in the figure, the engine section E is composed of an engine body section 5, an exhaust muffler 6, an air cleaner 7, a recoil starter 8, a spark plug 20, and other wirings 9 in a narrow sense.
The fuel tank 4 is integrally attached to the engine body 5, and the cutting blade 11 at the tip is rotatable via a drive shaft (not shown) inside the operation rod 10 extended from the engine E or the like. Have been. In addition, it comprises a safety cover 12, a throttle lever 13, a handle grip 14, and the like.

In general, the fuel tank 4 is configured to be positioned horizontally below the engine section E or the like during operation. A fuel inlet 4a is provided slightly upward in the lateral direction of the fuel tank 4, and a cap 4b is screwed into the fuel inlet 4a.

In the above-described brush cutter, when refueling, as shown in FIG. 3 and FIG. 3, the engine section E or the like is placed on a suitable base 15 or the like and the fuel inlet 4a of the fuel tank 4 is provided. Are mounted on the supply tank 16 and the like so as to be positioned above.

The leaked fuel guide 1 according to the present embodiment is formed in a substantially strip shape as a whole, and is fitted near the one end 1a by lightly press-fitting the fuel inlet 4a of the fuel tank 4 to prevent misalignment. A through hole 2 is provided, and a substantially U-shaped rib 3 is provided upright from the peripheral edge of the one end 1a to both side edges. The other end 1b of the leaking fuel guide 1
The rib-free opening 1 has no rib 3
c is configured.

The term "close to one end 1a" means that when the through hole 2 of the leaking fuel guide 1 is adapted to the fuel inlet 4a of the fuel tank 4, the fuel inlet 4a and the one end This means that there is a space left between the rib 3 formed on the peripheral edge of the portion 1a and the receiving portion 1d for the leaked fuel F.

The through hole 2 of the leaking fuel guide 1 is adapted to the fuel inlet 4a of the fuel tank 4, and the ribless opening 1c of the other end 1b is connected to the fuel tank 4. Side 4 opposite to engine section E
It is adapted to the outer shape of c, and the displacement of the leaking fuel guide 1 is prevented.

As a result, the fuel F leaked from the fuel inlet 4a of the fuel tank 4 passes through the inside of the rib 3 and is discharged directly to the ground side or the like from the ribless opening 1c, and the engine or the like E Side, and the worker's safety is ensured.

It is desirable that the entirety of the leak fuel guide 1 of the above embodiment is made of a flexible material such as rubber. As a result, it fits easily into the fuel inlet 4a and the opposite side surface 4c of the fuel tank 4 and is easily installed.

In particular, even if an external thread 4d is formed on the outer periphery of the fuel inlet 4a of the fuel tank 4, the through-hole 2 is slightly stretched to make the through-hole 2 slightly.
Can be adapted to the fuel inlet 4a, and after the adaptation, no gap can be formed between the fuel inlet 4a and the through hole 2.

Therefore, it is possible to completely prevent the leaking fuel F from leaching into the outer peripheral surface of the fuel tank 4 from between the fuel inlet 4a of the fuel tank 4 and the through hole 2 of the leaking fuel guide 1. Thus, the effect of guiding the leaking fuel is enhanced.

[0021]

According to the present invention, the leaked fuel does not reach the engine and the like, and the prevention of fire and the safety of workers are ensured, and the failure and damage of the engine and the like due to the leaked fuel are prevented. can do.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a mounting portion of a leaking fuel guide of a power working machine according to an embodiment of the present invention.

FIG. 2 is a perspective view in which one embodiment of the present invention is applied to a brush cutter as an example of a power working machine.

FIG. 3 is a front view showing a fuel supply state of the brush cutter of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Leakage fuel guide 1a One end 1b Other end 1c Opening part without rib 2 Through hole 3 Rib 4 Fuel tank 4a Fuel inlet 4c Opposite side E Engine part etc. 5 Internal combustion engine body part

Claims (2)

[Claims] A fuel injection port (4a) of a fuel tank (4) is provided near one end (1a) thereof.
A through hole (2) conforming to the above is provided,
A substantially U-shaped rib (3) is formed on both sides from the peripheral edge of the fuel tank (4), and the ribless open portion (1c) of the other end (1b) is connected to the internal combustion engine body (5) of the fuel tank (4). A leaking fuel guide for a power working machine or the like, characterized in that it is adapted to the outer shape of the side surface (4c) opposite to the mounting side. 2. The leakage fuel guide for a power working machine or the like according to claim 1, wherein the whole is made of a flexible material such as rubber.