JPH11139375A - Auxiliary device arrangement structure for motorcycle - Google Patents

Abstract

(57) [Summary] [Problem] To provide an auxiliary device arrangement structure for a motorcycle, which can cover a battery without greatly extending a front cover to the front, and can reduce the size and improve the appearance. SOLUTION: In a motorcycle in which a front cover 70 covers a front pipe 70 from the front to the left and right sides of a head pipe 3, an auxiliary device arrangement structure of the motorcycle in which a battery 60 is disposed in the front cover 70 beside the head pipe 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement structure of auxiliary devices such as a battery and an air cleaner in a motorcycle.

[0002]

2. Description of the Related Art A battery is an auxiliary device which usually takes the form of a rectangular parallelepiped and is bulky. Conventionally, there is an example of a motorcycle in which a battery is provided in a front cover so as to avoid interference with other devices.

One such example is disclosed in Japanese Patent Application Laid-Open No. 1-103590.
FIG. 8 shows what is described in Japanese Patent Publication No. Same motorcycle 01
The main frame 03 extends downward from the head pipe 02, and a battery holder 05 is attached to a bracket 04 protruding forward from a lower portion of the head pipe 02,
The battery 06 is housed in the battery holder 05.
Front cover from the front of battery 06 to the left and right sides
07 is covering.

[0004]

Thus, the battery 06
Is held by the bracket 04 protruding forward of the head pipe 02 via the battery holder 05, so that the battery 06 is located in front of the head pipe 02, so that this battery 06
The front cover 07 that covers the front of the camera is greatly extended forward, which is undesirably large in size and appearance.

[0005] The present invention has been made in view of such a point,
An object of the present invention is to provide a motorcycle accessory arrangement structure that can cover a battery without greatly extending a front cover forward, and that can be reduced in size and improved in appearance.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a motorcycle in which a front cover covers the front pipe from the front to the left and right sides of the head pipe. The motorcycle has an auxiliary device arrangement structure in which a battery is arranged.

[0007] Since the battery is arranged in the front cover on the side of the head pipe, it is not necessary to protrude the front cover largely forward, so that the size and the appearance can be reduced.

According to a second aspect of the present invention, in the motorcycle article mounting structure according to the first aspect, the internal combustion engine is suspended below a main frame extending obliquely downward rearward from the head pipe. An air cleaner is disposed above the internal combustion engine and rearward and downward of the battery, and an intake duct of the air cleaner is disposed on a side of the head pipe opposite to the battery.

Since the battery is disposed on the side of the head cleaner opposite to the intake duct of the air pipe, the drain tube extending from the battery can be easily piped without interfering with the intake duct.

According to a third aspect of the present invention, in the auxiliary device arrangement structure for a motorcycle according to the second aspect, an intake duct extending from a front portion of the air cleaner case in the air cleaner extends from the air cleaner case in a vehicle longitudinal direction. The vertical wall protruding in a substantially vertical plane is supported by being penetrated from the front side, and an intake port is opened rearward.

Since the intake port of the intake duct is open behind the standing wall, dust from the front can be blocked by the standing wall, and entry from the intake port can be prevented as much as possible.

According to a fourth aspect of the present invention, in the motorcycle accessory arrangement structure of the third aspect, the air cleaner case is formed by combining a front case and a rear case divided into front and rear, and the intake duct is a front case. And is supported through the standing wall protruding along the mating surface of the rear case.

The air cleaner case is divided into front and rear parts, the intake duct extends from the front case, and a vertical wall is formed along the mating surface of the rear case, thereby facilitating the manufacture of each case and assembling it. The work is also easier.

According to a fifth aspect of the present invention, in the motorcycle accessory arrangement structure according to any one of the second to fourth aspects, the internal combustion engine tilts the cylinder forward to near horizontal and the cylinder is tilted forward. And a carburetor disposed between the air cleaner and the air cleaner above the air cleaner.

An air cleaner, utilizing the space below the main frame extending obliquely downward and backward from the head pipe,
The intake system is arranged vertically in the order of the carburetor and the internal combustion engine, so that the space efficiency is good and the function is excellent.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment according to the present invention will be described with reference to FIGS. FIG. 1 shows an overall side view of a motorcycle 1 according to the present embodiment, and FIGS. 2 and 3 show an overall side view and a plan view of a vehicle body frame 2.
Shown in

The body frame 2 is connected to the head pipes 3 to 1
A round pipe-shaped main frame 4 extends obliquely downward and downward, and a pair of left-right symmetrical rear frames 5 and 5 branching left and right from an intermediate portion extend substantially horizontally rearward and then obliquely upward. I'm standing up.

Therefore, as shown in FIG. 2, the body frame 2 has a main frame front portion 4a which is obliquely inclined in a side view.
And a rear frame inclined portion 5b which rises obliquely through a substantially horizontal rear frame horizontal portion 5a to form a shape in which the center is curved downward substantially, and the rigidity of the entire body frame is high. A rear portion 4b of the main frame 4 projects below the rear frame horizontal portion 5a.

A gusset 6 reinforces the space between the head pipe 3 and the main frame 4, and a pair of left and right rear frames 5, 5
A cross plate 7 having a triangular shape in a plan view is provided between portions branched from the main frame 4 at the front end of the front frame, and a cross pipe 8 is provided at a boundary between the rear frame horizontal portion 5a and the inclined portion 5b, A cross pipe 9 is provided, and a rear sub-frame 10 bent in a U-shape in plan view is connected rearward between rear ends of the left and right rear frame inclined portions 5b in a horizontal posture. A gusset 11 reinforces a connection corner between the rear frame inclined portion 5b and the rear subframe 10.

A pair of left and right symmetric pivot plates 12, 12 are welded to the rear portion 4b of the main frame, and are vertically extended downward to some extent by being welded at the upper edges, and the upper edges of the pivot plates 12, 12 are attached to the main frames. It is welded along the frame rear part 4b and the rear part is bent to extend the connecting parts 13 and 13 diagonally upward.
The upper ends of the pipes 13 and 13 are welded to the cross pipe 8 to reinforce the connection between the rear end of the main pipe 4 and the cross pipe 8 provided on the left and right rear frames 5 and 5.

Therefore, as shown in FIG. 2, the rear frame horizontal portion 5a, the main frame 4b, and the connecting portion 13 form three sides of a triangle when viewed from the side, thereby improving the overall rigidity of the body frame 2.

In the vehicle body frame 2 as described above, engine mount brackets 16 are suspended from front portions of the rear frame horizontal portions 5a, 5a.
a and gussets 17 are fixed at the bends of the inclined portions 5b and 5b, and support brackets 18 and 18 are provided on the left and right sides of the cross pipe 8.
At the upper ends of the rear frame inclined portions 5b, 5b, a long horizontally extending support bracket 19, 19 is attached to a connection portion with the rear subframe 10, and further, the rear subframe 10
A support bracket 20 is provided at the center of the rear part which is oriented left and right, and a pair of support brackets 21 and 21 are provided on the left and right sides thereof.

The head pipe 3 is provided with support brackets 22 and 23 for supporting the battery on the upper and lower sides on the right side thereof, and the support brackets 24 and 24 for supporting the air cleaner 45 are provided on the right and left sides of the gusset 6. With leg shield 72
Support brackets 14, 14 for supporting are protruded laterally, and support brackets 15, 15 for supporting the rear portion of the leg shield 72 behind the engine mount brackets 16, 16 of the rear frame horizontal portions 5a, 5a. Is provided.

A front wheel 26 is rotatably supported at the lower end of a front fork 25 rotatably supported by the front head pipe 3 of the body frame 2, and a handle 27 is extended right and left at an upper portion integral with the front fork 25. Installed.

A pair of left and right pivot plates 12, 12 vertically extending from the rear portion 4b of the main frame are provided with bearings 12a around the lower rear end of the rear portion 4b of the main frame, and pivot shafts penetrating the bearings 12a. Rear forks 29, 29, whose front ends are pivotally supported at both left and right ends, extend rearward, and the rear wheel 30, which is pivotally supported at the rear ends of the rear forks 29, 29, can swing up and down. A rear cushion 31 is interposed between the end and the gusset 11 provided at the upper end of the rear frame inclined portion 5b above the end.

A helmet storage box 35 is provided between a pair of left and right rear frames 5. The helmet storage box 35 has a substantially rectangular opening in the upper part, an eave portion 35a extending rearward from the upper part of the rear wall, the front part of the bottom wall is supported by the cross plate 7, and the rear part of the bottom wall is crossed. Pipe 8
And the left and right sides of the eaves 35a are supported by the support bracket 19, and both are elastically supported via elastic members.

In the helmet storage box 35, a full-face type helmet 34 is stored. A fuel tank 36 is provided behind the helmet storage box 35. The fuel tank 36 is formed by combining upper and lower halves with a flange portion 36a forming a mating surface.
A substantially rectangular parallelepiped fuel tank 36 is inserted into the rear subframe 10 which is bent in a U-shape in plan view and connected to the rear end, and is supported by a flange portion 36a.

An eave portion 35a extending rearward of the helmet storage box 35 covers the front portion of the fuel tank 36 from above to the left and right sides. A long tandem seat 37 is provided at the front and rear so as to cover the helmet storage box 35 and the fuel tank 36, and the helmet storage box 35 is openably and closably supported at the front end.

A pair of left and right support brackets 21, 21 protruding from the rear portion of the rear sub-frame 10 are provided with seat lock devices.
A lock pin 37a vertically extending from the rear end of the bottom plate of the tandem seat 37 is locked and locked.

On the other hand, below a rear portion 4b of the main frame 4 extending from the head pipe 3, a rear frame horizontal portion 5 is provided.
a of the engine mount bracket 16 suspended from the main frame a and the pivot plate 12 suspended from the rear portion 4b of the main frame.
At several places, an internal combustion engine 40 is suspended by support shafts 32 and 33.
The internal combustion engine 40 is a four-cycle, one-cylinder, crankcase 40
The cylinder 40b protrudes forward from "a" to a substantially horizontal position.

A carburetor 41 is disposed above a cylinder head 40c of the internal combustion engine 40, and an intake pipe 42 extending from an upper portion of the cylinder head 34c is connected thereto. An air cleaner 45 is provided from below to the left and right from the bottom, and is connected to the carburetor 41 by a connecting pipe 43.

The internal combustion engine 40 utilizes the space below the main frame 4 that extends obliquely downward and rearward from the head pipe 3.
The carburetor 41 and the air cleaner 45 are arranged in an upward order on the cylinder head 40c of the cylinder 40b inclined forward, so that the space efficiency is good and the function is excellent.

An exhaust pipe 55 extends from a lower portion of the cylinder head 34c, and the exhaust pipe 55 is bent to extend rearward, substantially horizontally and rightward, and is provided on the right side of the rear wheel 30.
It is connected to.

As shown in FIG. 6, the air cleaner 45 is composed of a front case 46 and a rear case 47 which are divided into front and rear parts to form a horizontally long air cleaner case, and an air cleaner element 48 which is stretched between the two. By the intake chamber
45a and the exhaust chamber 45b are partitioned. One end of an intake duct 49 fits into the center of the upper wall of the front case 46, and a connecting pipe 43 connected to the carburetor 41 fits into the lower wall of the rear case 47.

The right and left upper parts of the rear case 47 extend upward along the mating surface of the horizontally long rectangle except for the center to the right and left of the rear case 47.
a, 47a are formed perpendicularly to the front-rear direction of the vehicle body, and the support walls 47 are opposed to the left and right from the inner edges of the both walls 47a, 47a.
b, 47b are formed.

As described above, the air cleaner case is divided into front and rear portions, and the air cleaner element 48 is interposed at the boundary, and the upright wall 47a is formed along the mating surface of the rear case 47 to form the respective cases 46, 47. And the assembling work can be simplified.

The intake duct 49 extending from the center of the upper wall of the front case 46 is bent leftward and then bent backward to be supported through the left standing wall 47a.
On the rear side, the intake port 49a is directed rearward.

The air cleaner 45 is connected to the main frame 4
From below. That is, the recess between the left and right supporting walls 47b, 47b of the air cleaner 45 is fitted into the front of the main frame 4 from below, and the bracket 2 protruding from the left and right of the gusset 6 provided at the front of the main frame 4 is provided.
The support walls 47b, 47b are sandwiched between the right and left sides of the support walls 47, 47, and the support walls 47b, 47b are fixed to the brackets 24, 24 by bolts 50, nuts 51, respectively, and the air cleaner 45 is suspended.

Therefore, the upright wall 47b stands in front of the intake port 49a of the intake duct 49, and the upright wall 47b blocks dust entering from the front during traveling, thereby preventing dust from entering the intake port 49a as much as possible. can do.

A battery 60 is disposed on the right side of the head pipe 3 located diagonally above and forward of the air cleaner 45. A rectangular support frame 61 is fixed to the upper and lower support brackets 22 and 23 projecting from the right side surface of the head pipe 3 by bolts 62 and nuts 63 in a slightly inclined front and rear posture. The battery case is a rectangular box
64 is fitted and supported from above, and is tightened and fixed by the battery band 65 from above.

The battery case 64 accommodates the battery 60. Referring to FIG. 5, a drain tube 64a extends downward from the bottom wall of battery case 64, and a drain tube 66 is connected to drain tube 64a.

The drain tube 66 extends downward from the drain pipe 64a toward the center of the vehicle body, enters the rear side of the intake duct 49 of the air cleaner 45 from the right side, and connects the upper wall of the rear case 47 of the air cleaner 45 to the main frame 4. It extends rearward along the lower surface of the main frame 4 through the gap, and as shown in FIG.

Therefore, if the battery 60 leaks,
The leaked liquid enters the drain tube 66 from the bottom of the battery case 64 via the drain tube 64a, is guided to the rear of the internal combustion engine 40 by the drain tube 66, and is discharged downward.

Since the intake duct 49 of the air cleaner 45 is on the left side of the head pipe 3, the battery 60 is located on the right side of the head pipe 3.
The drain tube 66 extending from the main frame 4 can be easily made to naturally follow the lower surface of the main frame 4 at a short distance without interfering with the intake duct 49.

The power line from the battery 60 and the handle 27
Signal lines from the head pipe 3 as shown in FIG.
On the side of the head pipe 3
To the right side of the main frame 4 along the upper wall of the air cleaner 45 between the main frame 4 and the right support wall 47b (see FIG. 5). Extending rearward along.

A front cover 70 covers from the front of the head pipe 3 to the left and right sides of the cover for covering the vehicle body, and the leg shield 72 covers the upper part of the main frame 4 and the front of both feet of the driver from behind the head pipe 3.

As shown in FIG. 7, the front cover 70 that covers the front of the head pipe 3 has a symmetrical shape with the center bulging forward, and a recess 70a in which the front fender 80 swingably fits at the lower center. Three mounting pieces 71 are arranged vertically along the left and right side edges of the inner surface.

On the other hand, the leg shield 72 has a front cover.
A head pipe cover 72a that surrounds the head pipe 3 from the rear corresponding to 70, a main frame cover 72b that covers the main frame 4 from above to the left and right sides, and a leg shield portion 72c that protrudes to the left and right sides.

Mounting holes 73 are respectively formed in the head pipe cover portion 72a corresponding to the mounting pieces 71 of the front cover 70, and are mounted on portions corresponding to the left and right support brackets 14, 14 of the gusset 6 of the vehicle body frame 2. A hole 74 is formed.

At the rear of the left and right side walls of the main frame cover 72b, mounting holes 75, 75 are formed corresponding to the left and right support brackets 15, 15 of the rear frame 5, and a maintenance opening is formed at a portion corresponding to the vaporizer 41. 76, 76 are formed on the left and right. The openings 76, 76 are closed by the lids 77, 77.

The front cover 70 and the leg shield
Although the front and rear portions of the head pipe 3 are covered by 72, the battery 60 provided in the front cover 70 is disposed not on the front of the head pipe 3 but on the right side. In addition, the size can be reduced and the appearance can be improved.

The leg shield 72 covers the rear of the air cleaner 45 from the upper side to the rear side as well as the rear, and partitions the upper part of the rear case 47 by standing walls 47a, 47a to form internal spaces on the left and right sides of the main frame 4, respectively. Intake duct 49
Is open to the same space. Therefore, the structure is such that dust does not easily enter the intake duct 49.

[Brief description of the drawings]

FIG. 1 is an overall side view of a motorcycle according to an embodiment of the present invention.

FIG. 2 is an overall side view of a vehicle body frame.

FIG. 3 is a plan view of the same.

FIG. 4 is a plan view of a main part of a front part of a vehicle body.

FIG. 5 is a front view of the same.

FIG. 6 is a cross-sectional view of the air cleaner.

FIG. 7 is an exploded perspective view of a front cover and a leg shield.

FIG. 8 is a side view of a conventional motorcycle.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Motorcycle, 2 ... Body frame, 3 ... Head pipe, 4 ... Main frame, 5 ... Rear frame, 6 ... Gusset, 7 ... Cross plate, 8, 9 ... Cross pipe, 10
... Rear subframe, 11 ... Gusset, 12 ... Pipot plate, 13 ... Connecting part, 14,15 ... Support bracket, 16 ... Engine mount bracket, 17 ... Gusset, 18,19,20,
21, 22, 23, 24 ... support bracket, 25 ... front fork, 26 ... front wheel, 27 ... handlebar, 28 ... pivot shaft, 29 ... rear fork, 30 ... rear wheel, 31 ... rear cushion, 32, 33 ...
Axle, 34… helmet, 35… helmet storage box,
36 ... fuel tank, 37 ... tandem seat, 38 ... seat lock device, 40 ... internal combustion engine, 41 ... carburetor, 42 ... intake pipe, 43 ...
Connecting pipe, 45 ... air cleaner, 46 ... front case, 47 ... rear case, 48 ... air cleaner element, 49 ... intake duct, 50 ... bolt, 51 ... nut, 55 ... exhaust pipe, 56 ... muffler, 60 ... battery, 61 … Support frame, 62… Bolt, 63… Nut, 64… Battery case, 65… Battery band, 66…
Drain tube, 68 ... harness, 70 ... front cover,
71 ... mounting piece, 72 ... leg shield, 73, 74, 75 ... mounting hole, 76 ... opening, 77 ... lid, 80 ... front fender.

Claims (5)

[Claims] 1. A motorcycle according to claim 1, wherein the front cover covers the front cover from the front to the left and right sides of the head pipe, wherein a battery is disposed in the front cover to the side of the head pipe. 2. An internal combustion engine is suspended below a main frame extending obliquely downward from the head pipe rearward, and an air cleaner is disposed above and below the internal combustion engine and below and behind the battery. The accessory arrangement structure for a motorcycle according to claim 1, wherein a duct is disposed on a side of the head pipe opposite to the battery. 3. An air intake duct extending from a front portion of an air cleaner case in the air cleaner is supported by penetrating a vertical wall protruding from the air cleaner case in a direction substantially perpendicular to the vehicle longitudinal direction from the front side to intake air rearward. The accessory arrangement structure for a motorcycle according to claim 2, wherein the mouth is opened. 4. The air cleaner case is formed by combining a front case and a rear case divided into front and rear parts, and the intake duct extends from the front case and penetrates and supports the upright wall protruding along a mating surface of the rear case. The auxiliary device arrangement structure for a motorcycle according to claim 3, wherein the auxiliary device is arranged. 5. The internal combustion engine according to claim 2, wherein a cylinder is inclined forward to near horizontal and a carburetor is disposed between the cylinder and the air cleaner above the cylinder. A motorcycle accessory structure according to any of the preceding claims.