JP2769755B2 - Oil tank for scooter type vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scooter in which a rear frame is surrounded by a rear cover, and a seat is provided on the upper portion of the rear cover so as to be openable and closable, and a helmet housing chamber and a fuel tank are disposed in the rear cover. The present invention relates to an advantageous arrangement structure of an oil tank in a type vehicle.

[0002]

2. Description of the Related Art As an example of such a scooter type vehicle,
There is JP-A-62-155185. In this example, an oil tank is provided between a helmet storage chamber and a fuel tank, and the oil tank is traversed in the vehicle width direction and supported between left and right rear frames.

[0003]

By the way, in order to increase the capacity of the oil tank as much as possible, Japanese Unexamined Patent Publication No.
As disclosed in 2-155185, the vehicle body is lengthened in the front-rear direction in order to provide a space for housing a large-capacity oil tank by providing a sufficient space between the helmet housing chamber and the fuel tank,
Alternatively, the capacity may be increased in the height direction or the vehicle width direction. However, such means cannot be adopted when the body is made compact and slim. It is also known that an oil tank is provided integrally with the helmet housing chamber (Japanese Patent Application Laid-Open No. 62-157875). In this case, when the helmet housing chamber is detached from the vehicle body and the engine and various parts of the vehicle body are maintained. The oil tank must be removed together, and as a result, the piping of the oil tank also needs to be removed. In addition, it can sufficiently prevent deformation due to external force.
desired. Accordingly, the present invention provides an oil tank disposition structure that solves the above problems.

[0004]

In order to solve the above problems, an oil tank for a scooter type vehicle according to the present invention comprises a pair of left and right rear frames pivotally supporting a rear wheel power unit and extending in the front-rear direction. A scooter-type vehicle including a rear cover surrounding the periphery of the vehicle, a seat capable of opening and closing the upper portion of the rear cover, and a helmet storage chamber and a fuel tank disposed in the rear cover in the front and rear directions, outside the rear frame and on the helmet storage chamber side how and the main body portion which is disposed into the space between the rear cover, and the helmet storage chamber protrudes over the rear frame from the main unit to the vehicle body inwardly
It is installed between the left and right rear frames passing between the fuel tanks.
And a projecting portion which Ru extending along the cross member,
Provided the whole including these main body and the projecting portion in the helmet storage chamber a separate body, the main body portion is longer disposed in the front-rear direction along the rear frame, at the head of Zhang Ri out portion its inner and more rear frame At the lower position of the seat, an oil inlet is provided that can be opened and closed by the seat.
Arm stands up from the bottom of the helmet compartment
Rising part and substantially extending rearward substantially horizontally from the rear end
A horizontal portion, wherein the rising portion is the main body in a side view.
Part and faces the rear cover of the main body part.
The outer wall portion is curved along the inner surface of the rear cover .

[0005]

[Function] Since the entire body including the main body and the overhanging part is provided separately from the helmet housing chamber, it is not necessary to remove the oil tank together when the helmet housing chamber is removed from the vehicle body and the engine and various parts of the vehicle body are maintained. Therefore, it is not necessary to remove the piping of the oil tank, and the maintainability is improved. When the main body of the oil tank is extended along the frame outside the rear frame and in the space surrounded by the helmet storage chamber and the rear cover, the volume of the helmet storage chamber disposed inside the rear frame is reduced by oil. The size can be increased without being restricted by the main body of the tank. In addition, the dead space can be effectively used, and a sufficient capacity of the oil tank can be secured. In addition, since the overhang of the oil tank only protrudes into the space between the helmet storage chamber and the fuel tank, it is possible to effectively use the dead space. Can be avoided. In particular, the overhang
The left and right rear frames pass between the
To extend along the cross pipe installed between the
Is formed on the rear frame,
The space on the cross pipe 18 can be effectively used.
Moreover, since the overhanging portion extends over the rear frame inward of the vehicle body, this portion can be supported on the vehicle body inner side of the rear frame, and the oil tank can be supported in a well-balanced manner. Further, since the oil inlet of the overhang portion is sandwiched between the helmet housing chamber and the fuel tank on the inner side of the rear frame and on the front and rear sides, it is difficult to deform even when an external force is applied. In addition, since the oil inlet is provided at the head of the overhang, inside the rear frame and below the seat, this oil inlet can be opened and closed with a seat. It becomes difficult for the entrance part to be tampered with. In addition, the rear frame
High position where the rising part overlaps the main body in side view
Up to the oil, this rising part
The tank can be supported from the inside, and can be
The oil tank can be prevented from being deformed by the force. Also book
Curved along the inner surface of the rear cover facing the outer wall of the body
The external force applied from the rear cover
Disperses over a wide area to withstand external forces and prevent deformation
Can be stopped. As a result, the deformation of the oil tank against external force
Oil tank along the inner surface of the rear cover while preventing
Helmet accommodation
Close the chamber and fuel tank to reduce the length of the vehicle
it can.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to FIGS. FIG. 2 is a partially cutaway view of the outer appearance of the left side of the scooter to which the present invention is applied. A seat 2 is provided on an upper portion of a rear frame 1 so as to be openable and closable. A separate skirt portion 3 is attached to the bottom plate portion of the seat 2, and a front end portion of the skirt portion 3 is attached to an upper portion of a front end of the helmet storage chamber 5 by a hinge 4.

[0007] A large-capacity helmet accommodating chamber 5 capable of accommodating the helmet H is provided at a front portion in the rear frame 1, and both bottom sides thereof are supported by the rear frame 6.

The rear frame 6 extends diagonally upward and rearward in a left-right pair, and a fuel tank 7 is supported at a portion extending substantially horizontally behind the helmet housing chamber 5. Rear frame 6
The rear portion is connected to a rear wheel power unit 9 via a rear cushion 8. The front end of the rear wheel power unit 9 is pivotally supported by the rear frame 6.

FIG. 3 is a view showing the upper shape of the rear frame 1 with the seat 2 removed. A main body of the oil tank 10 is elongated in the front-rear direction at a portion inside the rear frame 1 along a right side portion of the rear frame 6. A projecting portion 11 is formed in the middle of the oil tank 10 so as to extend between the helmet accommodating chamber 5 and the fuel tank 7 in the direction of the center of the vehicle body.
2a is attached. The upper part of the cap 12a is covered with a cover 13 so as to be freely opened and closed. However, the cover 13 can be omitted.

The cover 13 is attached to a tank cover 15 which covers the upper part of the fuel tank 7 integrally formed with the opening wall 14 of the helmet housing chamber 5 by a hinge described later.

Around the fuel tank 7, a flange 7a (FIGS. 1, 4, and 7) is provided, of which a rear portion is supported on an end tube 17. The end tubes 17 are portions where the rear ends of the left and right rear frames 6 are connected. The front portion of the flange 7a is supported on a cross pipe 18 extending between the left and right rear frames 6 under the overhang portion 11.

An opening 15a is formed in a portion of the tank cover 15 above the cross pipe 18 so that a hook 19 integral with the seat 2 can pass therethrough. The hook 19 can be disengaged from a lock (not shown) supported on the cross pipe 18 side through the opening 15a. The hook 19
Is locked between the helmet storage chamber 5 and the fuel tank 7, so that the rear end of the seat 2 can be made lower than in the conventional case where the seat 2 is locked at the rear end.

FIG. 1 is a view in which the upper part of the rear frame 1 is cut away as shown in FIG. 3 to show the inside. The oil tank 10 has a front portion 20 having a length between the front and rear portions on the right side of the helmet housing chamber 5. The main body rear part 21 extends along the right side of the fuel tank 7 along most. The oil tank 10 and the overhang portion 11 have a substantially T shape in plan view.

A narrow portion 10a is formed between the overhang portion 11 and the rear portion 21 of the main body, and a mounting portion 22 integrally projecting from the overhang portion 11 is bolted to a stay 23 which is welded onto the rear frame 6. (See FIG. 1). The upper part of the main body front part 20 and the overhang part 11 overlaps the upper part of the rear frame 6, and the main body rear part 21 has the narrow part 10.
a, and partly overlaps the rear frame 6 below. Also. The overhang 11 may be directly contacted and supported on the rear frame 6 and the cross pipe 18.

FIG. 4 is a view showing the oil tank 10 and the fuel tank 7 associated with the right rear frame 6 as viewed from the left side of the vehicle body. It is bolted by a stay 25 provided at the rising portion of the rear frame 6.

FIG. 5 is a cross section taken along line AA of FIG.
As is apparent from this figure, the overhanging portion 11 rides over the rear frame 6 and extends toward the center of the vehicle body along the upper portion of the cross pipe 18, behind the helmet storage chamber 5 and in front of the fuel tank 7 and above the right side of the cross pipe 18. And is supported on the rear frame 6. The lower body 26 hangs outward from the rear frame 6 and is accommodated in the space 30 between the rear frame 6 and the rear frame 1. Spaces 29 and 3
0 is a space portion that should originally be a dead space.

The inlet 12 protrudes above a recess 27 formed by recessing a part of the tank cover 15 downward, and a cap 12 a is attached below the cover 13. The cover 13 is connected to the tank cover 15 by a hinge 28 and can be opened and closed freely.

FIG. 6 is a cross section taken along the line BB of FIG.
The main body front portion 20 is disposed in a space 31 surrounded by the rear frame 1 and the helmet housing chamber 5 along the outer side and the upper side of the rear frame 6. The space 31 is a space that should be a dead space.

FIG. 7 is a cross section taken along the line CC of FIG.
The main body rear portion 21 is disposed along the lower portion of the rear frame 6 into a space 32 formed inside the rear frame 1. The space 32 is a space portion that should originally be a dead space. Reference numeral 6a shown in FIG.
6 stands up from below the helmet storage room 5
6b is a rearward portion substantially horizontally from a rear end portion thereof.
It is a substantially horizontal portion extending to. The rising portion 6a is on the side of FIG.
It overlaps with the main body front part 20 in a plan view. Also, in FIG.
0b is the outer wall of the main body, facing the rear cover 1,
It is curved along its inner surface .

Next, the operation of this embodiment will be described. As is clear from FIG. 1 and FIGS.
The main body front portion 20, the main body rear portion 21, and the main body lower portion 26, which are main body portions of the rear frame 1, extend to the side of the rear frame 6, and
Space 30 which is originally formed inside the space and is a dead space
To 32. In particular, the main body front portion 20 extends from the rear portion to almost the front end portion along the right outside of the helmet housing chamber 5 and uses substantially the entire space 31. For this reason, the oil tank 10 can secure a much larger capacity than before.

At the same time, the fuel tank 7 is
The rear frames 6 and 17 are disposed on the left and right sides of the rear frames 6 and 17, so that a sufficiently large capacity can be secured, and the capacity of the fuel tank 7 and the oil tank 10 can be increased at the same time. Moreover, it is not necessary to enlarge the dimension in the vehicle width direction.

Further, since the overhang portion 11 is housed by effectively utilizing the space 29 which is originally a dead space between the helmet housing room 5 and the fuel tank 7, the helmet housing room 5 is provided for the overhang portion 11. The seat 3 can be shortened because there is no need to provide a special interval between the fuel tanks 7.
In particular, the overhang 11 is provided between the helmet storage chamber and the fuel tank.
Erection between the left and right rear frames 6
It is arranged to extend along the loss pipe 18.
The helmet before and after formed on the rear frame configuration
On the cross pipe 18 sandwiched between the storage chamber 5 and the fuel tank 7
Space is effectively used as a space for disposing the overhang portion 11.
Can be used. In addition, since the inlet 12 is provided at the head of the overhanging portion 11 inside the rear frame 6 and below the seat 2 and is opened and closed by the seat 2, when the seat 2 is closed, the cap is inadvertently opened. There is no risk of opening and closing 12a.

Further, since the main body of the oil tank 10 extends along the rear frame 6, the oil tank 10 can be supported on the rear frame 6, and even if the oil tank 10 has a large capacity, the number of detachable parts in the mounting parts 22 and 24 is two in total. Bolts (see Fig. 4)
And the replacement is simple and fast. Further, the projecting portion 11 inward from the rear frame 6 can be supported, and the balance when supporting the oil tank 10 is improved.
In addition, the rear frame 6 has the rising portion 6a on the side.
Launched to a high position that overlaps the main unit in a side view
Therefore, the oil tank 10 is formed by the rising portion 6a.
It can be supported from the inside, against external forces from the side of the vehicle
Thus, the deformation of the oil tank 10 can be prevented. Also, the main unit
Along the inner surface of the rear cover 1 facing the outer wall portion 10b
External force applied from the rear cover 1 because it is curved
Is distributed over a wide area of the main unit to withstand external forces.
Shape can be prevented. As a result, the oil tank
10 while preventing the oil tank 10 from being deformed.
-1 long along the inner surface in the front-rear direction
The helmet storage room 5 and the fuel tank 7
The length of the body in the front-rear direction can be shortened.

[0024]

According to the present invention, the entire body including the main body and the overhanging portion is provided separately from the helmet housing chamber. Therefore, when the helmet housing chamber is detached from the vehicle body and the engine and various parts of the vehicle body are maintained, the oil tank is used together. Since there is no need to remove the oil tank, there is no need to remove the piping of the oil tank, and the maintainability is improved. In addition, since the main body of the oil tank is disposed in the space surrounded by the helmet housing chamber and the rear cover, and the overhanging portion forming the injection port is projected into the space between the helmet housing chamber and the fuel tank, By effectively utilizing the space that is originally a dead space, the capacity of the oil tank can be increased without increasing the dimensions in the vehicle width direction and in the front-rear direction. At the same time, a sufficient capacity can be secured for each of the fuel tank and the helmet storage chamber without sacrificing the capacity. In particular, the helmet accommodating chamber disposed inside the rear frame can have a large capacity without being restricted by the main body of the oil tank by disposing the main body of the oil tank outside the rear frame. . Besides,
The overhanging portion that extends over the rear frame can be supported on the inward side of the vehicle body than the rear frame, and the oil tank can be supported in a well-balanced manner. Also overhang the left and right rear
It extends along the cross member installed between the frames
Before being formed due to the structure of the rear frame
The rear helmet compartment and the fuel tank
The space on the member is effective as a space for the overhang
Available to Further, the oil injection port is sandwiched between the helmet housing chamber and the fuel tank on the inner side of the frame and on the front and rear sides, so that the oil injection port is less likely to be deformed even when an external force is applied. Also, since the oil inlet is provided at the head of the overhang, inside the rear frame and below the seat, this oil inlet can be opened and closed with the seat, and when closed with the seat, the oil The injection port is less likely to be mischievous. Furthermore, the rear frame stands
Make sure that the raised part overlaps the main body in side view.
Since the start-up, the oil tank
Can be supported from the inside, and the
On the other hand, the deformation of the oil tank can be prevented. Also, the main unit
The outer wall portion is curved along the inner surface of the facing rear cover of
External force applied from the rear cover
Disperses over a wide area to withstand external forces and prevent deformation
Wear. As a result, deformation of the oil tank against external force is prevented.
While stopping, move the oil tank forward along the inner surface of the rear cover.
By arranging it long in the rear direction, the helmet accommodation room and
Close the fuel tank to reduce the length of the vehicle in the front-rear direction.
You.

[Brief description of the drawings]

FIG. 1 is a diagram showing a planar arrangement relationship of an embodiment, excluding an upper portion of a rear cover.

FIG. 2 is a partially cutaway left side view of the scooter according to the embodiment.

FIG. 3 is a plan view of a main part of the embodiment.

FIG. 4 is a partially cut-away view showing a relationship of a side arrangement of a main part of the embodiment.

FIG. 5 is a sectional view taken along line AA in FIG. 4;

FIG. 6 is a sectional view taken along the line BB of FIG. 4;

FIG. 7 is a sectional view taken along the line CC of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear frame 2 Seat 5 Helmet accommodation room 6 Rear frame 7 Fuel tank 10 Oil tank 11 Overhang 12 Injection port

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B62J 31/00 B62J 9/00 B62J 23/00 B62K 11/10

Claims (1)

(57) [Claims] 1. A pair of left and right rear frames pivotally supporting a rear wheel power unit and extending in a front-rear direction, a rear cover surrounding the rear frame, a seat capable of opening and closing the upper portion of the rear cover, and a front and rear seat disposed in the rear cover. In a scooter-type vehicle provided with a helmet storage chamber and a fuel tank, a main body disposed outside the rear frame and in the space between the helmet storage chamber and the rear cover, f protrudes over the rear frame to
The left and right rear hoods pass between the
And a projecting portion which Ru extending along a bridged by cross members on the inter frame, provided the whole including these main body and the projecting portion in the helmet storage chamber a separate body, the body portion rear frame <br/> arm long been arranged in the front-rear direction along the Zhang Ri out portion at its head, it is provided an oil inlet covered freely opened and closed by the seat on the inside and a sheet of a lower position than the rear frame
With the rear frame from below the helmet compartment
The rising part that rises upward, and almost water from the rear end
A substantially horizontal portion extending flat and rearward, wherein the rising portion
Overlaps with the main body in side view, and
The outer wall facing the rear cover runs along the inner surface of the rear cover
An oil tank for a scooter-type vehicle characterized by being curved .