JPS60154970A - 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 provides a front wheel 1 suitable for increasing the capacity of a fuel tank! This relates to a solid scooter type vehicle.

There are two- and three-wheeled scooters with one front wheel that have a low-floor, roughly plate-shaped footrest between the steering wheel and the driver's seat. Conventional scooters of this type usually have an engine and a rear wheel bar at least above the temporary wheels, and a fuel tank at the top within this rear wheel bar.

A driver's seat is also provided above the fuel tank. However, there was a problem in that the heat of the engine was likely to accumulate in the interior of the tank cover, especially in the upper part, and the fuel tank was heated.

There is also a need to increase the capacity of the fuel tank.

However, if a large-capacity fuel tank is placed facing the bottom plate of the driver's seat in this way, the center of the vehicle becomes undesirably high, especially when the tank is filled with fuel, and the seat position often becomes too high. As a result, a new inconvenience arises in that the driver's ability to keep his feet on the road deteriorates.

Therefore, it is conceivable to provide a fuel tank in the footrest, but in this case, there is a problem that not only is there a limit to increasing the capacity, but also the fuel filler port is lowered, resulting in poor refueling workability.

Furthermore, in scooters, the load distribution to the rear wheels tends to be large, and there is also a demand for a large load distribution to the front wheels.

(Objective of the Invention) The present invention has been made in view of the above circumstances, and it is possible to prevent heating of the fuel tank, to lower the vehicle body center of gravity even when the fuel tank has a large capacity, and to prevent deterioration of refueling workability. 1
It is an object of the present invention to provide a scooter type vehicle that can also provide preferable front and rear wheel load distribution.

(Structure of the Invention) The present invention aims to increase the tank capacity and lower the center of gravity by disposing a part of the fuel tank on a footrest, and also allows part of the fuel tank to stand along the front frame. The above object was achieved by providing a refueling port at the upper part of the rear wheel to improve refueling workability and to optimize load distribution between the front and rear wheels. That is, in a scooter-type vehicle that includes a low-floor, substantially plate-shaped footrest provided between a steering wheel and a driver's seat, and one front steering wheel, a front frame extending downward from a steering shaft cylinder is used. A fuel tank is disposed in an abbreviated shape on the side from the footrest to the footrest, and a fuel filler port is provided at the upper part of the fuel tank along the front frame.

(Example) The present invention will be described in detail below based on the drawings.

FIG. 1 is a side view of a two-wheeled scooter according to an embodiment of the present invention, and FIG. 2 is a plan view.

The code 10 in the frame is a frame. This frame 10 includes a steering shaft cylinder 12, one front frame 14, and a pair of left and right rear frames 16 (16a) extending obliquely upward and rearward from the lower end of the front frame 14.

16b). One front steering wheel 18 and a steering handle 20 are attached to a steering shaft held by the steering shaft cylinder 12 so as to be rotatable left and right.

Reference numeral 22 denotes a power unit, in which a forced air-cooled two-stroke horizontally placed engine 24 and a transmission case 26 are integrally assembled and are formed in an abbreviated shape when viewed from above (FIG. 2). The front part of the transmission case 26 is.

It is connected to the rear frame 16 via a link 28 so as to be able to swing up and down. The rear part of the transmission case 26 is elastically supported by a buffer unit 30. 32 is
This is a rear wheel attached to the rear part of the transmission case 26.

Further, 34 and 36 are a carburetor and an intake air purifier arranged on three sides of one engine 24.

The rear frame 16 extends rearward at a height near the upper edge of the rear wheel 32. Left and right rear frames 16a, 16b
An arcuate front/rear bridge 38° 40 is fixed to the holder so as to protrude upward. Both bridges 38.40
There is a battery 42 in between. Lubricating oil tank 44. A luggage box 46 is provided.

Since the rear frame 16 is disposed below the luggage box 46 in this way, the left and right width of the opening of the luggage box 46 is not limited by the interval between the rear frames 16, and the luggage box 46 has a sufficiently large opening. be able to. Therefore, as shown in FIG. 1, the luggage box 46 can accommodate a full-face helmet 48. Both bridges38.
A longitudinally long driver's seat 50 is attached above the seat 40 so as to be openable and closable. Note that the middle person in FIG. 1 indicates a fulcrum provided on the front bridge 38 when the seat 50 is opened and closed. 52 is a seat lock provided on the rear bridge 40.

The upper end of the buffer unit 30 passes between the rear frame 16a and the rear wheel 32 and is supported by a rear bracket 40.

between the steering handle 20 and the driver's seat 5o.

A low-slung, substantially plate-shaped footrest 54 is formed to cover the lower part of the front frame 14 and the front part of the rear frame 16.

The rear part of this footrest 54 has a moving crab knit 22. rear wheel 32
It is connected to a rear cover 56 that covers the upper side of the. Further, the front part of the footrest 54 is connected to the steering shaft cylinder 12. Front frame 14
It is connected to a leg shield 58 that wraps the body from the front and back.

A cover plate 6o that can be opened and closed is provided on the rear surface of this leg shield 58.
is attached, and the interior serves as a luggage compartment.

Reference numeral 62 designates a fuel tank, which includes a portion 62a utilizing the inside of the front frame 171, and left and right rear frames 16a connected to the lower end of the front frame 14.

16b and a portion 62b inside the footrest 54 located between the footrests 16b and 62b, and has an oval shape on the side. An electromagnetic fuel pump 64 is housed at the bottom of a portion 62b within the footrest 54. This fuel pump 64.

The fuel in the tank 62 is sent to the carburetor 34. A fuel filler port 66 oriented obliquely upward and rearward is housed in the second portion of the front frame 14, and a gap 68 is covered therein. This gap 68 corresponds to the cover plate 60 of the leg shield 58.
is facing. As a result, when the cover plate 60 is opened, a cap 68 appears inside the cover plate 60, and this cap 68 is removed to supply fuel. In FIG. 1, reference numeral 70 is a breather pipe that communicates the portion 62b inside the two-foot stand 54 with the fuel filler port 66.

According to this embodiment, the fuel tank 62 is located outside the rear cover and is not affected by the heat of the engine.

Therefore, the tank 62 is not heated. tank 62
The internal portion 621 of the footrest 54 can have a sufficiently large volume as required, and even if the capacity of the tank 62 is increased, the center of gravity of the vehicle will not become high. In addition, since the refueling port 66 is located at a sufficiently high position, refueling work can be performed in a comfortable posture, resulting in good work efficiency. Furthermore, since the tank 62 is close to the front wheels 18, the front wheel load increases and the front and rear wheel load distribution becomes better.

In this embodiment, since the inside of the front frame 14 is used as a part of the fuel tank 62, the leg shield 5
The space within 8 can be used effectively.

Furthermore, there is an effect that the increase in weight per unit is small even though the capacity of the fuel tank 62 is increased.

However, in the present invention, a separate tank may be provided without utilizing the inside of the front frame 14. Figure 3 is a side view of a portion of such an embodiment.

In this embodiment the front frame 14. A is a pair of left and right, and a portion 80a along the front frame 14A is disposed between them, and this front frame 14. A stationary stand internal portion 80b is disposed between a pair of left and right rear frames integral with A, and constitutes a fuel tank 80. 80C
82 is each part 80a, 80t of tank 80)
7-, It is a connecting pipe.

It goes without saying that the present invention also includes a tank 80 in which each part (soa, 3Ql) is integrally formed.

The present invention is applicable not only to two-wheeled scooters as shown in the first and second factors, but also to three-wheeled scooters with two rear wheels.

(Effects of the Invention) As described above, according to the present invention, the fuel tank is disposed in a side profile from the front frame to the footrest.

Therefore, unlike when the fuel is disposed inside the rear cover, the fuel is not heated by the heat of the engine and the amount of evaporation does not increase.

Furthermore, it is possible to increase the capacity of the fuel tank by making full use of the space within the stationary stand, and the center of gravity of the vehicle can be sufficiently lowered. Conventional models have a large-capacity fuel tank under the driver's seat.
Increasing the tank capacity will make it easier to position the seat, according to the present invention! It is possible to simultaneously increase the capacity of the tank and lower the position of the driver's seat.

Furthermore, since the load on the front wheels increases, it is possible to achieve a favorable front-rear load distribution.

[Brief explanation of drawings]

FIG. 1 is a side view of one embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view showing a part of another embodiment. 12... Steering shaft cylinder, 14. ．． 14A...Front frame. 18. Front wheel, 20. Steering handle. 50 - Driver seat, 54 - Footrest. 62.8'0--1 tank of fuel. 62CI80C・Refueling port. Patent Applicant He Maha Motor Co., Ltd. Agent Patent Attorney Yama 1) Yu Moon

Claims (1)

[Claims] Steering: Go to a scooter-type vehicle equipped with a low-floor roughly plate-shaped footrest installed between the steering wheel and the driver's seat, and one front steering wheel, and extend downward from one steering axis. A fuel tank is arranged in an abbreviated shape on the side from the front frame to the footrest, and a fuel filler port is provided in the upper part 13 of the fuel tank along the front frame. Scooter type vehicle.