JPH10236363A - Motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate restrictions of a motorcycle about the shape of its fuel tank originating from the configuration that the knee grips are provided on both side faces of the rear part of the fuel tank. SOLUTION: A main pipe 2b is extended backward from the head pipe 2a of a motorcycle, and an engine 9 with cylinders 9a furnished upright is installed under the main pipe 2b, and a carburettor 16 is installed behind the cylinder 9a of the engine 9 while a fuel tank 8 is installed over the main pipe, and a seat 19 is installed behind the fuel tank 8. In the area from beside the carburettor 16 to the side faces of the tank 8 and seat 19, a cover 30 or serve also as a knee grip is provided in such an arrangement that the mentioned areas are tied smoothly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle which covers a carburetor side and improves a knee pad.

[0002]

2. Description of the Related Art A motorcycle rides in a manner similar to a horse-riding horse. For this reason, the parts where the left and right knees of the motorcycle hit
It has a part corresponding to the knee pad called the knee grip.

As a conventional knee pad for a motorcycle, for example, as disclosed in Japanese Patent Application Laid-Open No. Hei 6-31677, both sides of a rear portion of a fuel tank facing the front of a seat are sandwiched between both knees, and both side surfaces of a rear portion of the fuel tank are used as knee pads. ing. As shown in the drawing, as shown in FIG. 13, the occupant M sandwiches the rear side surface 102a of the fuel tank 102 disposed in front of the seat 101 of the motorcycle 100 with the knee M1, and uses the side surface 102a as a knee pad. ing.

[0004]

In the above prior art, since the rear side of the fuel tank is used as a knee pad, the knee to the carburetor disposed behind the engine disposed below the fuel tank. Of the fuel tank is prevented by abutting and holding the knee to the knee rests on both sides at the rear of the fuel tank. By the way, when the rear side surfaces of the fuel tank are used as knee pads, the rear side portions of the fuel tank sandwich the both sides with the knee, so that the width in the left-right direction is set to a width that can be easily sandwiched by the knee. There is a need.

For this reason, the rear portion of the fuel tank is narrowed so as to have a small width. Even if the width of the front half is set large, the shape of the rear half must be narrowed. The shape of the fuel tank is limited,
The degree of freedom in designing the fuel tank is impaired.

[0006] Particularly in a motorcycle, the fuel tank is exposed naked in the first half and forms an important appearance.
The fuel tank is a very important element in the design of the motorcycle, and it is not preferable that the design of the fuel tank be restricted. Further, in the shape of the fuel tank, a narrower rear portion reduces the capacity of the fuel tank, which is not preferable in securing the fuel tank capacity.

In most cases, an engine is arranged below the fuel tank and a carburetor is arranged behind the engine. In this case, both sides of the rear part of the fuel tank above the carburetor constitute knee pads. This is also effective in avoiding interference of the knee with the carburetor, and in view of such demands, it is difficult to change the above-mentioned restricted shape of the fuel tank.

The present invention has been made to solve the above problems. The present inventors want to improve the degree of freedom of the shape of the fuel tank, and therefore want to obtain a motorcycle having a fuel tank with an excellent design that matches the shape requirements of the motorcycle. Want to ensure sufficient capacity of the vehicle, avoid interference between the carburetor and the occupant's knee while doing the above, and ensure that the occupant's knee is held when riding a motorcycle. Protect the sides of the vaporizer while maintaining proper knee retention,
Further, the present invention has been made in order to rationally solve the demands, such as a desire to improve the appearance in consideration of the appearance.

Therefore, an object of the present invention is to improve the degree of freedom in designing a fuel tank and to obtain a fuel tank shape that can correspond to the concept of a motorcycle.
In addition, the fuel tank capacity can be sufficiently secured, and the side of the carburetor can be prevented from interfering with the knee, and when riding on a motorcycle, the knee rest function is secured. Provided is a motorcycle in which a knee pad can be configured with a sense of unity with a fuel tank and a seat without using both side surfaces.

[0010]

According to a first aspect of the present invention, there is provided an engine in which a main pipe extends rearward from a head pipe, and an engine having a substantially upright cylinder is disposed below the main pipe. In a motorcycle in which a carburetor is disposed behind the cylinder of the engine, a fuel tank is disposed above the main pipe, and a seat is disposed behind the fuel tank, the motorcycle is disposed substantially from the side of the carburetor. A cover member serving also as a knee pad member is provided so as to smoothly connect the fuel tank side surface and the seat side surface to each other.

According to the first aspect of the present invention, since the cover member serving as the knee rest member is provided so as to face the side of the carburetor disposed below the fuel tank, interference of the knee with the side of the carburetor is prevented. be able to. The cover member is the side of the fuel tank,
And because they are connected smoothly over the side of the seat, it creates a sense of unity with the fuel tank and seat, is excellent in design, and has no discomfort in the feeling with the fuel tank and seat as a knee pad. Excellent functionality. Further, since the rear side surface of the fuel tank is not used as a knee pad, the degree of freedom of the rear shape of the fuel tank is improved.

According to a second aspect, in the first aspect, the cover member is disposed immediately below the vaporizer, below the rear side surface of the fuel tank, and on the front side surface of the seat. According to the second aspect, interference with the knee on the side of the carburetor can be prevented, and the function as a knee rest can be ensured.

According to a third aspect, in the first aspect, the cover member covers the side of the carburetor, and is disposed below the rear side surface of the fuel tank and on the front side surface of the seat. In claim 3,
The entire surface of the vaporizer side is covered with a cover member, and the cover member serves as an exterior member, which covers the vaporizer side having a complicated shape to improve the appearance, prevents interference with the knee on the vaporizer side, and applies a knee pad. The function as a member can be secured.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. 1 is a side view of the motorcycle, FIG. 2 is a plan view of the same, FIG. 3 is a side view of a front part of the motorcycle, FIG. 4 is an explanatory plan view of a main part of the motorcycle front part, and FIG. FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 5, FIG. 7 is an explanatory perspective view of an essential part of a frame for explaining attachment of a cover member, and FIG. 8 is a perspective view of a frame of a motorcycle. 9, FIG. 9 is a side view of a second embodiment of the cover member, the cover member arrangement, and the attachment of the cover member, FIG. 10 is an explanatory perspective view of the cover member attachment portion, and FIG. 11 is a side view of the third embodiment of the cover member. FIG. 12 is a side view of a fourth embodiment of the cover member.

FIG. 1 is a side view showing an external appearance of a motorcycle 1. Reference numeral 2 denotes a frame, and details of the frame 2 are shown in FIG. The frame 2 has a head pipe 2a at the front end,
The main pipe 2b extends rearward from the upper portion of the head pipe 2a, and the main pipe 2b is of a single type.
And a head pipe 2b
The left and right seat rails 2e and 2e extend rearward from the upper rear part of the main pipe 2b, and the rear half of the down tubes 2c and 2d extend rearward from the lower part of the main pipe 2b. The rear ends of the down tubes 2c, 2d are inclined upward and the seat rail 2
e, 2e Joined to the lower intermediate surface.

The head pipe 2a has a front fork 3
The steering wheel 4 is provided on the upper part, and the front fork 3 supports a front wheel 5 which is a steering wheel. A headlight 6 is provided in front of the head pipe 2a.
The meter unit 7 is disposed above the.

On the main pipe 2b of the frame 2, a fuel tank 8 is laid. On the left and right down tubes 2c, 2d below the fuel tank 8, engine hangers 2f.
The engine 9 is mounted via the. As shown in FIGS. 1 and 4 in the embodiment, the engine 9 is a vertical upright type four-cylinder engine in which the axis of the cylinder is directed up and down, and a side-by-side four-cylinder engine in which cylinders 9a. Equipped.

Brackets 2g and 2g are erected at the middle rear portions of the down tubes 2c and 2d, respectively.
The front end of the rear swing arm 11 that supports the rear wheel 10 is rotatably supported between the brackets g, and the transmission case 9b faces between the brackets 2g and 2g and in front thereof, and the crankcase 9c faces in front of the transmission case 9b. . Each cylinder 9 of the engine 9
The exhaust pipes 12 extend downward and rearward from the front of a, and are connected to the left and right mufflers 14 via the expansion chamber 13 as shown in FIG. A radiator 15 is provided in front of the engine 9.

The carburetors 16 are arranged below the fuel tank 8, behind the cylinders 9a of the engine 9, and above the crankcase 9b. The carburetors 16 are provided for each of the cylinders 9a. In the embodiment, since the side-by-side four-cylinder engine is employed, four carburetors 16 are provided side by side. Each vaporizer 16
Are connected to and connected to a purified air side (clean side) of an air cleaner case 18 provided at the rear through suction pipes 17.

A seat 19 is disposed at the rear of the fuel tank 8. The seat 19 is of a tandem type, the front seat 19 a is low, and the shape of the seat 19 is continuous with the rear end portion 8 a of the fuel tank 8 inclined downward. It is configured. The front seat 19 of the seat 19
A side cover 20 is disposed below both sides of “a”. In FIG. 1, reference numeral 21 denotes a rear cowl, and in FIG. 2, reference numeral 22 denotes a step.

Next, the cover member 30 serving also as a knee pad according to the gist of the present invention will be described in detail below. FIG. 3 is an enlarged view of the cover member 30, and FIGS.
FIG. 6 shows the cover member 30 in an enlarged perspective view, and FIG. 6 shows the cover member 30 in a perspective view.

As shown in FIG. 6, the cover member 30 has a substantially bow-shaped cross section which bulges outward, and is formed in a plate shape by aluminum alloy die casting or the like. When viewed from the side, the bottom is long in the front-back direction, the top is short, and has a predetermined dimension in the up-down direction. The bottom of the first half is provided with an arm portion 31 that hangs downward. And a mounting hole 32a is provided in this portion. In the rear part of the bottom, a protruding part 33
And a mounting hole 33a is provided in this portion. Further, a mounting portion 34 is provided at an intermediate portion of the top in the front-rear direction, and a mounting hole 34a is provided at this portion.

On the back surface 30b of the cover member 30, a sponge 35 is stuck except for the above-mentioned arm portion 31.
A concave portion 30c having a shape similar to the outer shape of the cover member 30 is provided in an upper portion to an intermediate lower portion of Oa. The pad 36 is provided with a locking projection 36
a ... provided in the concave portion 30c.
, And the back surface of the pad 36 and the concave portion 30c are bonded with a double-sided tape or the like. The front end of the cover member 30 is provided with an arc-shaped front edge 30d that bulges outward.

The attachment of the cover member 30 is as shown in FIG. 7. The lower end 2h of the main pipe 2b of the frame 2 which is inclined rearward and downward is joined to the intermediate portion of the cross member 2i provided between the left and right brackets 2g. And the main pipe 2b
The seat rail 2e described above, from the upper left and right sides of the
And a support stay 41 is provided on an engine hanger portion 2f provided between the main pipe 2b and the bracket 2g of the cross member 2i, and a support boss portion 42 is provided on both sides of a rear portion of the main pipe 2b. Cover member 30
Attach and support.

That is, the mounting portion 32 on the upper part of the cover member 30
Is connected to the supporting boss portion 42 via a bolt 43, and the lower mounting portion 32 is connected to the mounting hole 32.
a is connected to the support stay 31 via a bolt 43, and the cover member 30 is attached to and supported by the frame. The attachment portion 33 at the rear of the cover member 30 attaches and supports accessories such as an air cleaner case. The cover member on the opposite side from FIG. 7 is similarly attached to and supported by the frame.

As described above, the cover member 30 is attached to and supported by the frame, and the position of the cover member 30 is shown in FIGS. 1, 2 and 3 and FIGS.
As shown in FIG. 3, the carburetors 16 are spaced apart from the left and right outer sides of the vaporizers 16. In this embodiment, the cover member 30
Is disposed such that a front edge portion 30e wraps around the rear portion of the vaporizer 16 in the vehicle width direction.

The cover member 30 is connected to the fuel tank 8 described above.
The top is close to the lower edge 8b on both sides of the rear of the seat.
The rear part faces both sides of the front end part 19b with a small gap. The lower edge of the cover member faces the upper edge 20a of the front portion of the side cover 20 with a small gap.

As shown in FIG. 6, the cover member 30 has a substantially arcuate shape with a cross section bulging outward, and the surface thereof has a rear lower edge portion 8b of the upper fuel tank 8 and a front end of the seat 19. A surface is formed so as to be smoothly continuous with the portion 19b, and the vaporizer 16 faces the front of the surface.

In the above, as shown in FIG.
Rides on the front seat 19a of the seat 19, and the left and right legs face downward from the front seat 19a on the left and right.
Left and right feet are on top. The tip of the knee M1 faces both sides of the carburetor 16, but the inside of the knee M1 is covered by the cover members 30 and 3.
0, and prevents entry into the inside of the cover members 30, 30.

As shown in FIG. 6, the cover members 30, 30 have a bow shape whose cross section bulges outward, and have an outer shape smoothly connected to both side surfaces of the fuel tank 8 and the seat 19, so that they fit inside the knee M1. To ensure that the knee M1 is held securely and ergonomically fitted. In addition, since the pads 36 are provided on the outer surfaces of the cover members 30 and 30, respectively, the feel when the knee M1 is hit is good, and the cover member 30 is made of an aluminum alloy or the like, so that the rigidity is high. Is obtained.

The carburetor 16 holds the knee as the occupant's knee abuts on the cover member 30 which also serves as a knee rest member disposed outside the carburetor, so that the knee M1 interferes with the carburetor. Can be prevented. Further, in the embodiment, the side cover 20 is located outside the above-described relationship between the cover member 30 and the fuel tank 8 and the seat 19 and below the cover member 30.
Is arranged, the cover member 30 exhibits a sense of unity with these components, and the appearance of the rear part immediately after the vaporizer of the motorcycle can be improved as an appearance member.

FIGS. 9 and 10 show a second embodiment. The cover member 130 bulges outward from the lower portion of the upright upper portion 103a, has a side surface 130a that hangs downward, and the mounting portions 130c, 1 that protrude upward and to the left and right of the upper portion 103a.
30c with bolts 43, 4 on both sides at the rear of the main pipe 2b.
Connect with 3.

The side surface 130b faces the outside of the vaporizer 16 on both sides with a gap, and the side surface 1b of the cover member 130
30b, cover the entire side surfaces of both sides of the vaporizers 16. Rear edge 13 of side surface 130b of cover member 130
At 0d, the stay 130e extends rearward, while the front portion 120a of the side cover 120 is formed substantially L-shaped when viewed from the side, and the upper edge 120b of the standing piece 120a is inserted into the lower end of the front seat 19a of the seat 19. Then, the rear portion of the upright piece 120a of the side cover 120 is screwed to the stay 130e. Also, the rear end 120c of the upright piece 120a of the side cover 120 approaches the front end of the seat 19 with a small gap. The mounting relationship is shown in detail in FIG.

As described above, the outer surfaces of both outer sides of the vaporizers 16 are completely covered with the cover member 130, and the knee M1 comes into contact with the outer surface of the cover member 130. A contact member will be constituted. As described above, the cover member 130 functions as a shielding member that conceals the knee pad and the carburetor 16 from the outside, and functions as an external member that shields the carburetor from the outside while forming an effective knee pad.

FIG. 11 shows a third embodiment. The cover bar member 230 extends the front and rear of the cover member of the type shown in FIG. 3 and below so as to cover the entire side surface of the vaporizer 16,
The cover member 230 attached and supported the upper front portion 230a to the upper portion of the engine cylinder, and attached and supported the rear portion 230b to the frame side and the rear half lower portion 230c to the frame 2 side.
With this, the outer surface of the vaporizer 16 can be entirely covered, and the same operations and effects as those of the embodiment of FIGS. 9 and 10 can be obtained.

FIG. 12 shows a fourth embodiment. Cover member 3
Reference numeral 30 is formed in a substantially inverted L-shape when viewed from the side, includes the carburetor 16 from the rear of the cylinder 9 a of the engine 9, and covers the front end of the seat 19. The cover member 330 includes upper and lower portions 330a and 330d of a front end portion at a rear portion of the engine cylinder 9a,
Upper and lower portions 330b, 330 of a portion 330e mounted and supported on the upper portion of the transmission case 9b and projecting rearward from the upper portion.
c was attached and supported at the rear of the main pipe 2b.

In this embodiment as well, the entire area from the rear of the engine cylinder 9a to the side of the carburetor 16 and the front end of the seat 19 can be covered. Therefore, the same operation and effect as those of the embodiment of FIGS. 9 and 10 are obtained.

9, 11, and 12, the cover members 130, 230, and 330 cover the entire side of the vaporizer 16.
The parts 30, 230, 330 also located on the side of the carburetor can be connected to the carburetor body by screws A or the like. Accordingly, the components facing both outer sides of the vaporizer 16 group are supported by the cover members 130, 230, and 330, and the mounting and support rigidity of the vaporizer 16 can be increased.

[0039]

According to the present invention, the following effects are exhibited by the above configuration. According to claim 1, the main pipe extends rearward from the head pipe, an engine having a substantially upright cylinder is disposed below the main pipe, and a carburetor is disposed behind the cylinder of the engine. In a motorcycle in which a fuel tank is provided above and a seat is provided behind the fuel tank, the motorcycle is connected smoothly from substantially the side of the vaporizer to the side of the fuel tank and the side of the seat. Is provided with a cover member also serving as a knee rest member, so that it is possible to prevent the knee from interfering with the side of the vaporizer.

In particular, since the cover member is smoothly connected to the side surfaces of the fuel tank and the seat, a sense of unity with the fuel tank and the seat is generated, and the functionally superior knee rest member and the knee are provided. The appearance is excellent as a carburetor protection member, the design is excellent as a motorcycle exterior member, and the appearance of the motorcycle can be improved. In addition, a knee pad that does not have a sense of incongruity with the fuel tank and the seat and that has excellent functionality as a knee pad can be obtained.

Further, since the rear side surface of the fuel tank is not used as a knee pad, the degree of freedom in the shape of the rear part of the fuel tank is improved, and a motorcycle having an excellent design as a fuel tank can be easily obtained. The fuel tank is
Because it occupies an extremely high position as its appearance element,
The degree of freedom in the design of the entire motorcycle is improved, and a motorcycle with an excellent design can be obtained.

In addition, while satisfying the above, the capacity of the fuel tank is not restricted by narrowing the rear part, so that it is easy to secure the capacity, and the design is improved and the tank capacity is increased. It is possible to resolve conflicting requests by rational matching.

According to the second aspect, the cover member is arranged on the lower side of the rear side of the fuel tank immediately after the vaporizer and on the front side of the seat in the first aspect.
The inside of the knee can be securely held by the cover member, the interference of the side of the carburetor with the knee can be prevented, and the function as the knee rest member can be secured.

According to a third aspect, in the first aspect, the cover member covers the side of the carburetor and is disposed below the rear side surface of the fuel tank and on the front side of the seat. The entire side surface can be covered with the cover member. Therefore, the cover member constitutes an appearance member that shields the side of the carburetor, and covers the side of the carburetor having a complicated shape to improve the appearance of the rear portion of the engine cylinder. In addition to preventing interference with the knee on the side of the carburetor and ensuring the function as a knee pad, the cover is located on the side of the carburetor. It is also possible to support a part of the vessel, and to increase the support rigidity of the vaporizer.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of a front part of the motorcycle.

FIG. 4 is an explanatory plan view of a main part of a motorcycle front part.

FIG. 5 is a side view showing attachment of a cover member.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is an explanatory perspective view of a main part of a frame for explaining attachment of a cover member and a cover member.

FIG. 8 is a perspective view of a frame of the motorcycle.

FIG. 9 is a side view of a second embodiment of the cover member, the cover member arrangement, and the attachment of the cover member.

FIG. 10 is an explanatory perspective view of a cover member mounting portion.

FIG. 11 is a side view of a third embodiment of the cover member.

FIG. 12 is a side view of a fourth embodiment of the cover member.

FIG. 13 is a side view of a motorcycle illustrating a conventional example.

[Explanation of symbols]

1 ... motorcycle, 2a ... head pipe, 2b ... main pipe, 8 ... fuel tank, 9 ... engine, 16 ...
Vaporizer, 19 ... sheet, 30, 130, 230, 3
30 ... Cover member.

Claims (3)

[Claims] A main pipe extending rearward from a head pipe, an engine having a substantially upright cylinder disposed below the main pipe, a carburetor disposed rearward of a cylinder of the engine, In a motorcycle in which a fuel tank is provided above and a seat is provided behind the fuel tank, these are smoothly connected from substantially the side of the carburetor to the side of the fuel tank and the side of the seat. A motorcycle having a cover member also serving as a knee pad member as described above. 2. The motorcycle according to claim 1, wherein the cover member is disposed immediately below the vaporizer, below a rear side surface of a fuel tank, and on a front side surface of a seat. 3. The motorcycle according to claim 1, wherein the cover member covers a side of the carburetor, and is disposed below a rear side surface of a fuel tank and a front side surface of a seat.