JPH0629188Y2 - Scooter fuel tank mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a fuel tank attachment device for a scooter having a storage box under a seat.

(Prior Art) In a motorcycle called a scooter, a step board is arranged with a low curve between the steering wheel for steering the front wheel and the seat on the rear upper part, and the engine and the rear wheel suspended from below the seat to the lower rear part are seated. While covering up with a body cover,
A layout in which a storage box, a fuel tank, an oil tank, etc. are arranged inside a body cover is common.

In this case, it is necessary to open the opening of the storage box and the inlets of the fuel tank and the oil tank by opening the openable seat. Moreover, these arrangements are cramped because it is required that the individual capacities be as large as possible. In addition, since these are individually fixed to the frame and the like, there is a problem that the structure becomes complicated and the workability of assembly is deteriorated. To solve the above problem, it is sufficient to increase the total volume in the body cover. However, this causes a new problem that the rear part of the vehicle body becomes large and lacks in slimness and impairs the appearance.

(Problems to be solved by the invention) As described above, the storage box, the fuel tank, and the oil tank are tightly arranged in the body cover below the seat of the scooter, and the workability of assembling is low, or the body cover is increased in size. There was a problem of inviting.

In order to solve this problem, this invention simplifies the attachment method by arranging the arrangement of the oil tank and the fuel tank, increases the capacity of each, and maintains a slim appearance. It is an object of the present invention to obtain a fuel tank attachment device for a scooter.

[Constitution of device]

(Means for Solving the Problems) In order to achieve the above object, the fuel tank attaching device for a scooter of the present invention has a storage box defined below a seat that is openably and closably provided. A unit swing-type engine that pivotally supports the rear wheels is installed below the vehicle, and the upper end of a rear cushion unit that suspends the unit swing-type engine in a vertically swingable manner is offset and connected to one side of the rear surface of the storage box. In the scooter in which a fuel tank and an oil tank are installed behind the storage box, a rear fender that covers the upper portion of the rear wheel is installed below the storage box, and the lower periphery of the seat is covered with a body cover, the upper surface of the rear fender is The oil tank formed on a flat box type and placed on the bottom surface of the rear cushion unit Positioned laterally and along the rear surface of the storage box,
An oil inlet is provided on one side of the upper surface of the oil tank, a recess is provided on the other side, and a fuel tank having a forward protrusion that fits into the recess is installed behind the oil tank. A fuel injection port is provided on the upper portion of the fuel tank, and a rubber band having both ends locked to the rear fender is hung over the fuel tank to fix the fuel tank.

(Operation) With this configuration, the fuel tank and the oil tank can be directly placed on the upper surface of the rear fender, and both tanks can be fixed with one rubber band, so that the assembly is extremely easy. Along with the simplification of the structure, the assembly work space and dead space can be eliminated, and the tank capacity can be set large within a limited space, thus preventing the body cover from increasing in size and ensuring a slim appearance.

In particular, since the upper end of the rear cushion unit and the oil tank are arranged side by side in the vehicle width direction, the dead space on the side of the rear cushion unit is effectively used, which can contribute to an increase in the capacity of the fuel tank and the oil tank.

Also, even if the total length of the rear cushion unit is lengthened, its upper end does not interfere with the oil tank, so the vertical swing range of the rear end of the unit swing type engine, that is, the suspension stroke, can be extended and the riding comfort of the scooter is improved. Can be made.

Furthermore, since the oil inlet of the oil tank and the fuel inlet of the fuel tank are separated from the rear end of the seat, both inlets are less likely to be tampered with when the scooter is parked.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a scooter, in which front wheels 1 steered by a handle 3 and rear wheels 2 driven by a unit swing type engine 4 are arranged in front and rear, and a seat 5 is arranged in an upper rear part, and a handle 3 is provided. The step board 6 is laid with a low curve between the seat 5 and the seat 5, and the unit swing type engine 4 and the upper portion of the rear wheel 2 are covered with an exterior plate from below the seat 5.

The frame is composed of a pipe frame 7 in the first half and a steel plate frame 8 in the second half. The steel plate frame 8 is a box type and is formed as a front half portion of the exterior plate, and the inside serves as a storage box on which the seat 5 is openably and closably mounted.

In the unit swing type engine 4 installed below the storage box, a swing case 9 is continuously provided rearward from one side of a crankcase, a rear wheel 2 is pivotally supported at a rear portion thereof, and a pipe frame 7 is provided at a front end thereof. It is pivotally supported by a buffer suspension arm 10 projecting from the rear end, and the rear part is connected to the rear surface of the steel plate frame 8 via a rear cushion unit 11,
It is buffered so that it can swing vertically.

The upper end of the rear cushion unit 11 is offset and connected to one side of the rear surface of the steel plate frame 8 which is a storage box, for example, the left side.

A rear fender 12 is arranged above the rear wheel 2 and is supported by a steel plate frame 8 and an auxiliary frame 8a extending rearward from the steel plate frame 8. The upper surface of the rear fender 12 is formed in a flat box shape in which side plates 13a and 13b are erected on both sides and a rear side, and a flat bottom surface 14 thereof is
The oil tank 15 and the fuel tank 16 are placed side by side in front and rear.

That is, the oil tank 15 and the fuel tank 16 are
It is installed behind the steel plate frame 8 which is a storage box.

The oil tank 15 is, as shown in FIGS. 2 and 3,
The front-rear width is thin and flat, and the shape is formed along the rear surface of the steel plate frame 8, and is located on the right side of the rear cushion unit 11. One side of the upper surface of the oil tank 15 (for example, the left side)
Has an oil inlet 17 on the other side and a downward recess 18 on the other side.
Is provided.

The fuel tank 16 has a planar shape that can be fully placed on the bottom surface 14 behind the oil tank 15. The front surface portion of the fuel tank 16 projects forward and fits into the recessed portion 18 of the oil tank 15.
A front protrusion 19 having a size that fills 8 is formed.
The fuel injection port 20 is formed on the upper surface of the front protrusion 19.
Is provided.

As described above, when both tanks 15 and 16 are placed in parallel, the front protrusion 19 is placed on the recess 18. At this time, a buffer plate 21 is interposed between the surfaces of the two tanks 15 and 16 which are in contact with each other. 22 is a side plate 1 with both ends being the upper surface of the rear fender 12.
The rubber band locked to 3a is stretched over the fuel tank 16 to fix it, and at the same time, the front projection 19 presses the recess 18 to fix the oil tank 15.

Further, the upper surfaces of both tanks 15 and 16 are pressed by the cover 23 attached to the auxiliary frame 8a or the like. Both injection ports 17, 20
Project above the cover 23 and are arranged immediately behind the steel plate frame 8. Further, most of the fuel tank 16 is covered with a body cover 24 that covers the lower periphery of the seat 5. Both of the injection ports 17 and 20 are exposed from the body cover 24, but the rear portion of the seat 5 is covered. That is, refueling of both tanks 15 and 16 is performed by opening the seat 5.

In this way, the oil tank 15 and the fuel tank 16 can be fixed to the upper surface of the rear fender 12 by a single rubber band 22, and no other bracket or screw is used.
The space can be effectively used at the same time as the assemblability is improved, and the capacities of both tanks 15 and 16 can be maximized in the limited space. Therefore, it is not necessary to increase the size of the body cover 24, and the appearance of the rear portion of the vehicle body can be made slim. Further, the cost can be reduced.

In particular, since the upper end of the rear cushion unit 11 and the oil tank 15 are arranged side by side in the vehicle width direction, the dead space on the side of the rear cushion unit 11 is effectively used, and the capacity of the fuel tank 15 and the oil tank 16 is increased. Can contribute to the increase.

Further, even if the total length of the rear cushion unit 11 is lengthened, its upper end does not interfere with the oil tank 16, so that the vertical swing range of the rear end of the unit swing type engine 4, that is, the suspension sloke, can be extended, and the scooter The riding comfort can be improved.

Furthermore, since the oil inlet 17 of the oil tank 15 and the fuel inlet 20 of the fuel tank 16 move away from the rear end of the seat 5, both inlets 17 and 20 are less likely to be tampered with when the scooter is parked.

[Effect of device]

As described above, the scooter fuel tank attachment device according to the present invention has a rear fender whose upper surface is formed in a flat box shape, and the oil tank mounted on the bottom surface thereof is positioned laterally of the rear cushion unit. The fuel tank has a shape that fits along the rear surface of the storage box, an oil inlet is provided on one side of the upper surface of the oil tank, and a recess is provided on the other side. The fuel tank is installed in the rear, the fuel injection port is provided on the front protruding portion of the fuel tank, and the rubber band whose both ends are locked to the rear fender is hung over the fuel tank to fix the fuel tank.

Therefore, the assembly is extremely easy, and at the same time, the tank capacity can be increased, and the body cover can be made smaller and slimmer, which has the effect of reducing the cost.

In particular, since the upper end of the rear cushion unit and the oil tank are arranged side by side in the vehicle width direction, the dead space on the side of the rear cushion unit is effectively used, which can contribute to an increase in the capacity of the fuel tank and the oil tank.

Also, even if the total length of the rear cushion unit is lengthened, its upper end does not interfere with the oil tank, so the vertical swing range of the rear end of the unit swing type engine, that is, the suspension stroke, can be extended and the riding comfort of the scooter is improved. Can be made.

Furthermore, since the oil inlet of the oil tank and the fuel inlet of the fuel tank are separated from the rear end of the seat, both inlets are less likely to be tampered with when the scooter is parked.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view of a scooter equipped with a fuel tank attachment device according to an embodiment of the present invention, FIG. 2 is a plan view of the main portion thereof, and FIG. 3 is an arrow AA of FIG. It is an expansion front view by visual observation. 1 ... front wheel, 2 ... rear wheel, 3 ... steering wheel, 4 ... unit swing type engine, 5 ... seat, 11 ... rear cushion unit, 12 ... rear fender, 13a,
13b ... Side plate, 14 ... Bottom surface, 15 ... Oil tank, 16 ... Fuel tank, 18 ... Recessed portion, 19 ... Front protruding portion, 22 ... Rubber band, 24 ... Body cover.

Claims (1)

[Scope of utility model registration request] 1. A storage box is defined below a seat that can be opened and closed, and a unit swing type engine that pivotally supports a rear wheel is installed below the storage box. An upper end of a rear cushion unit that is swingably suspended is offset and connected to one side of a rear surface of the storage box, a fuel tank and an oil tank are installed behind the storage box, and a fuel tank and an oil tank are provided below the storage box and above the rear wheel. In a scooter in which a rear fender covering the above is installed, and the lower periphery of the seat is covered with a body cover, the upper surface of the rear fender is formed into a flat box shape, and the oil tank mounted on the bottom surface is attached to the rear cushion unit side. And the shape along the rear surface of the storage box. Install the fuel injection port on the other side of the fuel tank, which has a recess on the other side and has a front protrusion that fits into this recess.The fuel tank is installed on the front protrusion of the fuel tank. A fuel tank mounting device for a scooter, characterized in that a rubber band having both ends locked to a rear fender is hung over the fuel tank to fix the fuel tank.