JPS62152990A - Fuel oil feeder for scooter type car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fuel supply system for a scooter type vehicle.

[Conventional technology]

In this type of scooter type vehicle, a fuel tank is generally disposed in a side cover below the seat, and the fuel tank is configured to be refueled by opening the seat. Therefore, there was an inconvenience that the driver had to get out of the car when refueling.
There is one disclosed in Publication No. 80. An injection pipe was installed on the rear of the fuel tank located below the seat, and the injection port of this injection pipe was placed near the inside of an opening provided at the top of the vehicle body cover, allowing fuel to be filled by opening the lid. It is something.

[Problem that the invention seeks to solve]

However, in such a structure, since the seat extends further rearward than the fuel tank, the injection pipe must extend rearward from the rear surface of the fuel tank. This makes it difficult to increase the angle of the injection pipe with respect to the horizontal direction, and if the vehicle body leans when cornering or maneuvering while driving, there is a risk that fuel in the fuel tank may enter the injection pipe and leak out from the breather hole. Ta.

[Means for solving problems]

The present invention has been made in view of these circumstances, and provides a fuel refueling device for a scooter type vehicle that allows refueling without opening the seat and is free from the risk of fuel leakage. In the fuel supply device for a scooter type vehicle according to the present invention, a fuel tank is provided with a stepped portion that extends to the rear of the seat and projects upward, and the upper end of the fuel tank extends at an inclination angle larger than the banking angle on the upper surface of the stepped portion. An injection pipe having an injection port is provided at the side, a side cover is extended above the injection port, and an opening having a lid is provided at a portion corresponding to the injection port.

[Effect]

In the present invention, the lid is opened to expose the injection port of the injection pipe to the outside of the car body, and even if the car body is tilted, the injection pipe is directed upward, so that the fuel in the fuel tank can enter the injection pipe. Make it difficult.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view showing a scooter equipped with a fuel supply system for a scooter-type vehicle according to the present invention, FIG. 2 is a perspective view showing the main parts, and FIG. 3 is a sectional view taken along line mm in FIG. 1. , FIG. 4 is a sectional view taken along the line IV--IV of FIG. 1, and FIG. 5 is an enlarged sectional view of a part of FIG. 3. In these figures, the symbol 1
1 shows a two-wheeled scooter as a scooter-type vehicle, and is provided with a low-floor, substantially plate-shaped footrest 4 between a steering handle 2 and a seat 3. Reference numeral 5 denotes a frame extending in the front-rear direction, including a steering shaft tube 5a, a front frame 5b extending downward from the steering shaft tube 5a, and a frame 5b branching left and right from the front frame 5b in parallel. It is composed of a rear frame 5C made up of a pair of tube bodies arranged. This rear frame 5c faces upward from the bottom of the footrest 4,
It is bent rearward again below the front portion of the seat 3 and extends above the rear wheel 7 suspended by the unit swing type engine 6. A main stand 8 that supports the scooter 1 in an upright position when parked is pivotally attached to the lower part of the engine 6.

A rear frame 5c 10 is disposed below the seat 3.
It is a fuel tank made of iron plate supported above, and is formed by welding a press-formed upper member and a lower member. The fuel tank 10 extends to the rear of the seat 3 along the rear frame 5c, and is provided with a stepped portion 10a projecting upward at the rear. Reference numeral 11 denotes a lubricating oil tank made of resin, which is held in a concave portion provided on the right side of the stepped portion 10a of the fuel tank 10. An injection pipe 12 for supplying fuel F and an injection pipe 13 for supplying lubricant oil are provided on the upper surface of the stepped portion 10a of the fuel tank 10 and the upper surface of the lubricating oil tank 11. The injection tube 12 extends toward the upper left, and the injection tube 13 extends toward the upper right, and has injection ports 12a and 13a at the upper end. Moreover, the lower end is inserted into the tank through the insertion hole. Here, since the insertion hole of the fuel tank 10 can be machined at the same time when the upper member is press-formed, the fabrication process is simplified.

The inclination angle of the injection pipe 12 with respect to the horizontal direction is set to be larger than the banking angle shown by θb in FIG. 3 at which the main stand 8 comes into contact with the road surface and the scooter 1 can no longer incline. To explain this in detail, the oil level Fs and the fuel tank 10 when the fuel F is fully filled
An inclination angle θt with respect to the horizontal direction of Hb passing through a point A where the center line a intersects with a point B at the lower part of the injection port 12a is made larger than the banking angle θb. Therefore, the inclination angle θf of the axis C of the injection tube 12 is larger than the inclination angle θt. Similarly to this, injection pipe 13
The inclination angle □θβ formed by the axis d is set to be larger than the inclination angle θt. 14゜15 are injection pipes 1 respectively
It is a cap crowned on 2.13.

20 is a resin side cover that covers the frame 5, engine 6, fuel tank 10, etc., and the rear peripheral wall is the injection port 1.
It extends above 2a and 13a. A back support 21 that supports the driver's waist is disposed above the rear part of the side cover 20. Openings 22 and 23 are opened in the side surface of the side cover 20 at locations corresponding to the injection ports 12a and L3a, which expose these injection ports 12a and 13a to the outside of the vehicle body. Reference numerals 24 and 25 designate lids provided on these openings 22 and 23, which are pivotally supported by a pivot 26, and are rotated about the pivot 26 to open and close the openings 22 and 23. A locking device 28 is attached to the pivoting end of the lid 24 for locking the lid 24 to the side cover 20 by operating a key 27.

30.31 is the injection port 12a, the outer periphery of iaa and the opening 22
．． This is a guide member that covers the space between the vehicle body and the fuel tank 23 and prevents fuel and lubricating oil leaked during refueling from flowing down into the vehicle body. 3'2.
Reference numeral 33 denotes a hose for recovering fuel and lubricating oil flowing down the guide members 30 and 31, and is connected to the flywheel magneto chamber, the intake passage 2, a recovery tank, etc., although not shown.

In the fuel supply system for a scooter type vehicle configured in this way, the openings 22 and 23 are opened in the portion of the side cover 20 where the injection ports 12a and 13a face each other.
The lids 24 and 25 can be opened to expose the injection ports 12a and 13a to the outside of the vehicle body. Therefore, the lids 24, 2 can be easily opened and closed without opening the seat 3, which is complicated to open and close.
5 can be opened to refuel.

In addition, since the inlets 12a and iaa extend from the stepped portion 10a of the fuel tank 1° and the top surface of the lubricating oil tank 11 at an inclination angle greater than the banking angle θb, the scooter 1 is inclined when traveling or when being handled. Even if this happens, the injection tubes 12, 13 can always be kept in an upwardly inclined state. Therefore, it is possible to prevent fuel F and lubricating oil from entering the injection pipe 12.13, and to prevent the fuel F and lubricating oil from entering the injection pipe 12.
It is possible to prevent leakage from the breather hole No. 5.

〔Effect of the invention〕

As explained above, according to the present invention, the fuel tank is provided with a stepped portion extending to the rear of the seat and protruding upward, and the fuel tank is extended at an inclination angle larger than the banking angle on the upper surface of the stepped portion, and is poured into the upper end. Since we provided an injection pipe with an inlet,
Even if the vehicle body is tilted, the injection pipe can be directed upward. In addition, since the side cover is extended above the injection port and an opening with a lid is provided in the area corresponding to the injection port, the injection port of the injection pipe can be exposed to the outside of the vehicle body by opening the lid. I can do it.

Therefore, since the lid can be opened to refuel, there is no need to open the seat. Moreover, even if the car body is tilted, the fuel in the fuel tank can be prevented from entering the injection pipe.
There is no risk of fuel leaking from the breather hole.

[Brief explanation of drawings]

FIG. 1 is a side view showing a scooter equipped with a fuel supply system for a scooter-type vehicle according to the present invention, FIG. 2 is a perspective view showing the main parts, and FIG. 3 is a sectional view taken along line mm in FIG. 1. , FIG. 4 is a sectional view taken along the line IV--IV of FIG. 1, and FIG. 5 is an enlarged sectional view of a part of FIG. 3. 3...Seat, 10...Fuel tank, 10a...
...Stepped portion, 12...Injection pipe, 12a...Inlet, 20...Side cover, 22...Opening,
24... Lid body, θb... Banking angle.

Claims (1)

[Claims] The fuel tank, located in the side cover below the seat, extends to the rear of the seat and has a step that protrudes upward.
An injection pipe is provided on the upper surface of this stepped portion at an inclination angle greater than the banking angle and has an injection port at the upper end, and a side cover is provided extending above the injection port to a portion corresponding to the injection port. A fuel refueling device for a scooter type vehicle, which has an opening and a lid that can be opened and closed.