JP2002173072A - Air guide structure of body front part in scooter type motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a front cover and to increase cooling efficiency of a radiator in an air guide structure of a body front part in a scooter type motorcycle. SOLUTION: This air guide structure has an air intake port 6 formed in the front face center of the front cover 4 and exhaust ports 8 formed on right and left sides of a leg shield 5. Louvers 61 are mounted at the air intake port 6 to protrude their tips from a front face line 6a of the front cover 4. A vertical length L1 of the air intake port 6 is approximately the same as that L2 of the radiator 43 while that L3 of the exhaust ports 8 is longer than the other two. In a space inside the front cover 4, the radiator 43 is arranged in front of a head pipe 26 and a cooling fan 44 is mounted on its front face while a radiator reserve tank 45 is arranged at a lower part in front of the cooling fan 44 and a horn 46 is mounted on the radiator 43.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind guiding structure for a front part of a vehicle in a scooter type vehicle, and more particularly to a front cover having a reduced size and capable of increasing the cooling efficiency of a radiator disposed therein. About things.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. Sho 61-10236 discloses a scooter-type vehicle having a space surrounded by a front cover and a rear cover (leg shield) above a front wheel at a front portion of a vehicle body. Accommodates overlapping cooling fans,
This figure shows a structure in which outside air is taken in from an introduction duct provided in the front of a front cover, is forcibly cooled by a cooling fan, and then discharges warm exhaust air to the outside through an exhaust duct provided in a rear cover. The vertical dimension of the air intake is shorter than the vertical dimension of the radiator, and the exhaust port is guided to the side by a wind guide member.

[0003]

However, from the viewpoint of slimming down the vehicle body, there are cases where it is desired to reduce the amount of forward projection of the front cover to make it as compact as possible. However, in the above-described conventional structure, the radiator is located in front of the cooling fan, and the lateral width of the radiator is larger than the outer diameter of the cooling fan. In addition, since the vertical dimension of the air intake is smaller than the vertical length of the radiator, the cooling efficiency decreases as the distance between the radiator and the air intake decreases. Also,
In the structure on the exhaust side, a hole must be formed in the back cover, and a separate air guide member must be attached to the hole, so that the number of components increases and design processing for improving the appearance becomes difficult. Therefore, an object of the present invention is to solve such a problem.

[0004]

Means for Solving the Problems To solve the above-mentioned problems, the invention of the scooter type vehicle according to the present invention, which relates to a wind guiding structure at the front of the vehicle body, includes a radiator and a fan inside a front cover arranged above the front wheels of the scooter type vehicle. For cooling the radiator through an air inlet provided in the front cover, wherein a fan is arranged between the air inlet and the radiator.

At this time, the air intake may be provided to have a length substantially equal to the vertical length of the radiator. The rear cover that covers the front cover from the rear side of the vehicle body may be provided with an air outlet, and the air outlet may be provided on the air outlet surface directed to the rear side on both sides of the rear cover. In this case, the air outlet may be formed vertically longer than the air inlet.

Further, a louver extending in a substantially horizontal direction may be provided at the air inlet, and a tip portion of the louver may protrude from a front line of the front cover. Further, a radiator reservoir tank may be arranged in a lower front portion of the radiator in the front cover.

Further, a horn may be arranged in the space above the radiator in the front cover, and a headlight may be provided on a front surface of a handle cover arranged above the front cover.

[0008]

According to the present invention, since a cooling fan is arranged between the air intake and the radiator, the outside air taken in from the air intake by the cooling fan cools the radiator. At this time, since the cooling fan having a smaller width than the radiator is located in front of the radiator, the amount of forward projection of the front cover can be reduced, and the radiator is located away from the air intake, so that the cooling efficiency is not impaired. Therefore, it is possible to keep the cooling efficiency of the radiator favorable while reducing the size of the front cover.

At this time, if the air intake is provided with a length substantially equal to the vertical length of the radiator, a sufficient amount of air can be secured and the cooling efficiency of the radiator can be increased.
In addition, when the rear cover is provided with an air outlet, and when the air outlet is provided on a surface facing the rear side on both sides of the rear cover, warm exhaust air that has cooled the radiator is guided from the air outlet to the exhaust surface. Smoothly discharged to the rear outside. Therefore, since the air is guided by using the surface of the back cover, which is a design component, without providing a separate wind guide member, it is possible to improve the appearance without increasing the number of components. In addition, if the exhaust port is made longer in the vertical direction than the air inlet, it is possible to improve the passage property of the exhaust air and further increase the cooling efficiency.

Further, a louver extending in a substantially horizontal direction is provided at the air intake, and a tip end of the louver projects from a front line of the front cover, so that the efficiency of taking in outside air is improved. In addition, if a radiator reservoir tank, which is a relatively large-capacity component, is arranged below the radiator in the front cover in the front lower portion, the radiator reservoir tank can be efficiently stored in the space inside the front cover, and the front cover is also compact in this regard. it can.

Furthermore, if a relatively large headlight is provided in front of the handle cover and a horn, which is a small component, is disposed in a narrow space above the radiator in the front cover, the radiator, cooling fan, reserve tank, The horn can be housed in the front cover in a space-efficient manner, and these components including the headlight can be arranged in the front of the vehicle body in a space-efficient manner.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of an external appearance of a motorcycle to which the present embodiment is applied, FIG. 2 is a plan view of the motorcycle, FIG. 3 is a side view of a front half of a vehicle body showing a layout of main parts inside a vehicle body cover, and FIG. 5 is a plan view of the front half of the vehicle body showing the layout of main components inside the vehicle body cover, FIG. 6 is a plan view of the rear half of the vehicle body following FIG. 5, and FIG. 8 is a perspective view showing a schematic configuration of a vehicle body frame, FIG. 9 is a plan view thereof, and FIG. 10 is a perspective view of a floor tray provided below the floor.

First, the overall structure of a motorcycle to which this embodiment is applied will be outlined. As shown in FIG. 1, this motorcycle is a scooter type vehicle employing a large-diameter front wheel 1 and a rear wheel 2, and an upper portion of a front fork 3 is covered by a front cover 4 and a leg shield 5 from front and rear. An air inlet 6 for taking in cooling air from the radiator is provided at the center of the front surface of the front cover 4, and turn signals 7 are provided on the left and right sides of the air inlet 6. The air outlet 8 is provided for exhausting air.

The front cover 4 comprises a main body 4a located above the front wheel 1 and a front side cover 4b connected to a lower portion thereof and extending obliquely downward from the front wheel 1 to extend rearward. A handle cover 10 that covers the handle 9 is provided above the front cover 4 and the leg shield 5.
1 is provided. A meter panel 10a is provided on the rear side of the upper surface of the handle cover 10 (FIG. 2).

The lower portion of the leg shield 5 is connected to a floor panel 12 which covers a low floor type step floor, and the floor panel 12 is bent substantially horizontally downward from a connection portion of the leg shield 5 and extends rearward, so that the rider ( The driver's foot is on the step floor. The rear part of the floor panel 12 is connected to a rear cover 13 that rises above the floor surface.

The rear cover 13 is a vertically open member that covers a space between the seat 14 and the front and upper portions of the rear wheel 2. The upper opening is covered with the seat 14 so as to be openable and closable. The seat 14 is for a two-seater, a front seat 14a for a rider and a rear seat 14b for a passenger (passenger).
Is provided. A grab rail / carrier 33a is arranged rearward from both left and right sides of the rear seat 14b, and the front end is a rear cover 1
3 is supported by a seat rail portion of a vehicle body frame to be described later via a stay 33b penetrating from the inside to the outside.

The front portion 13a of the rear cover is a portion having the largest vertical width from the floor surface to the front seat 14a, and a maintenance lid removably covers a maintenance hole formed under the lower portion so as to extend from the front to both left and right sides. 15 are attached.

The lower side of the step floor below the floor panel 12 is covered with a lower cover 16, the front end of which is connected to the rear end of the front cover 4, and the upper part is the floor panel 1.
Connect to 2. In the present application, for convenience, the front cover 4, the leg shield 5, and the handle cover 10 are used as a front body cover, and the floor panel 12 and the lower cover 1 are used.
6 is a floor cover, the rear cover 13 is a rear body cover, and these are collectively referred to as a body cover. These vehicle body covers are external members, each of which can be formed of an appropriate material such as plastic.

The maintenance lid 15 is a member made of an appropriate material such as plastic and has a substantially L-shape in side view.
By the attachment / detachment, the substantially horizontal bottom portion opens and closes a maintenance hole (not shown) formed on the floor panel 12 at the same time as opening and closing the maintenance hole on the rear cover front portion 13a side. The left and right rear ends of the floor panel 12 extend rearward on the sides of the rear cover front part 13a, and extend obliquely upward.
In this case, the passenger pillion step 17 overlaps when stored.

A flat surface 18 is formed on the side of the rear cover 13 below the front seat 14a and above the pillion step 17, and a large tail light unit 19 is formed at the rear end.
Is installed around the side. A key hole 20 for seat lock is provided on the side surface above the rear wheel 2 in the vicinity of the tail light unit 19. In the figure, reference numeral 21 denotes a swing type power unit, 22 denotes an air cleaner, 23 denotes a rear cushion, and 24 denotes a main stand.

The swing type power unit 21 has a four-cycle engine and a V-belt type transmission which will be described later. Reference numeral 21a in the figure denotes a crankshaft, on which a drive pulley is coaxially arranged. Reference numeral 21b denotes a transmission output shaft, on which a driven pulley and a starting clutch are coaxially arranged. 21c is a V belt wound around the driving pulley and the driven pulley,
1d is a rear wheel axle.

As shown in FIG. 3, the steering shaft 2 is inserted into a head pipe 26 provided at the front end of the body frame 25.
7 is rotatably supported, and the front fork 3 and the handle 9 are connected via the steering shaft 27. In addition, as shown in FIG. 4, a swing type power unit 21 is swingably supported at the center of the body frame 25 via a link 28.

As shown also in FIGS. 8 and 9, the body frame 25 has a down portion 30 extending rearward from the head pipe 26 obliquely downward to the center of the vehicle body, and has a front end welded to both lower portions thereof and extends obliquely downward and rearward. A pair of left and right floor portions 31 that bend substantially horizontally and extend further rearward, pillar portions 32 that bend from respective rear ends and extend upward in front of the rear wheel 2,
An upper end of the pillar portion 32 is welded, and a seat rail portion 33 is provided which extends obliquely upward and rearward below the seat 14 and above the rear wheel 2.

The down portion 30 is a pipe member used alone, and the floor portion 31 and the pillar portion 32 are continuous pipe members and are provided as a pair of left and right. The seat rail portion 33 is provided as a pair of left and right sides, and is a single pipe member having a substantially U-shape in plan view connected by an overhang portion 34 that projects forward from the upper end of the pillar portion 32 and that projects forward. The rear side is connected to the left and right by a cross member 35. A pivot plate 36 is provided at a connection portion between the seat rail portion 33 and the pillar portion 32, and one end side of the link 28 supporting the swing type power unit 21 at the other end side is supported by a pivot portion 36a provided here. It has become.

The rear end portions of the left and right floor portions 31 are connected to each other by rear cross pipes 38 that curve rearwardly, and both sides of the rear cross pipes 38 are welded to the lower surfaces of the rear end portions of the left and right floor portions 31. . Further, there are provided side stays 39 which extend in the front-rear direction substantially parallel to the outer sides of the left and right floor portions 31, respectively, and the side stays 39 are stays 40a, 40, respectively.
It is connected to the corresponding floor part 31 by b. The front end of the step frame 41 is also fastened to the rear stay 40b.

The step frame 41 is a pipe member which is provided along the lower portion of each of the right and left pillar portions 32 so as to be bent obliquely rearward and upwardly, and the other end is attached to the back side of the pillar portion 32. To the bracket 32a (FIGS. 7, 10). Further, a mounting boss 42 for a pillion step is provided on a top portion that protrudes most upward.

The front end portions of the left and right floor portions 31 are also connected by a front cross pipe 37, and the lower end of the down portion 30 is welded to an intermediate portion thereof. Thereby, the left and right floor portions 3
1. A space under the floor surrounded by the front cross pipe 37 and the rear cross pipe 38 is formed.

The arrangement relationship between the body frame 25 and each component will be described again with reference to FIGS. In a space surrounded by the front cover 4 and the leg shield 5, a head pipe 26 is provided.
A radiator 43 is disposed in front of the radiator 43, a cooling fan 44 is disposed in front of the radiator 43, a radiator reserve tank 45 is disposed below the radiator 43, and a horn 46 is disposed above the radiator 43.

The down portion 30 is disposed between the front cover 4 behind the front wheel 1 and the leg shield 5, and the floor portion 31 and the side stay 39 are covered with the floor panel 12 and the lower cover 16. Also, the left and right floor sections 31,
In the space below the floor surrounded by the front cross pipe 37 and the rear cross pipe 38, a concave portion 48 of a floor tray 47 shown in FIG. 9 is accommodated, and related electric components such as a battery 49a and a starter relay 49b are accommodated therein. Is housed.

The floor tray 47 is formed of a suitable material such as plastic, and is supported by the left and right floor portions 31, the front cross pipe 37 and the rear cross pipe 38 around the concave portion 48, and is opened above the concave portion 48. The opening faces the maintenance hole of the floor panel 12 and is opened and closed by the bottom of the maintenance lid 15.

The step frame 42 is provided on the floor panel 12.
The boss 42 and the pillion step 17 are exposed to the outside through an opening formed in a part thereof (FIG. 2).

The swing-type power unit 21 supported on the pivot plate 36 is provided with a water-cooled four-cycle engine at the front thereof. As shown in FIG. 7, the engine is composed of a cylinder 50, a cylinder head 51, and a cylinder head cover 52. And a cylinder head cover 52, a cylinder head 51 and a spark plug 53 and a cylinder head 51 attached to side surfaces thereof.
A part of the carburetor 54 connected to the suction port of the maintenance hole faces the opening of the maintenance hole covered with the maintenance lid 15.

The air cleaner 22 draws in outside air from a duct 22a provided at the front of the air cleaner 22 so as to protrude forward, and supplies fresh air to the carburetor 54 through a con tube 22b. Further, an exhaust pipe 55 connected to an exhaust port of the cylinder head 51 is connected to a muffler 56 (FIG. 3) on the rear wheel side under the engine. Further, as shown in FIG. 2, the engine side and the radiator 43 are connected to each other by water supply pipes 57a and 57b which are arranged on the right side of the vehicle body so as to circulate cooling water.

As shown in FIG. 4, the overhang portion 34 extends forward to the same extent as the cylinder head cover 52, and a storage case 58 is supported over the front half of the seat rail portion 33, and a fuel tank 59 is provided behind the seat portion. Rail part 3
3 supported on the posterior part. Further, the upper end of the rear cushion 23 is supported by the seat rail portion 33 near the middle in the front-rear direction of the fuel tank 59.

Next, the structure around the radiator will be described. 11 is an enlarged side view of the front cover 4 and the leg shield 5, FIG. 12 is a plan view of the front cover 4, FIG. 13 is a view showing the front cover 4 with its upper part cut away from an oblique front, and FIG. 14 is a front cover 4 and a leg. FIG. 15 is a perspective view showing a component arrangement structure around a radiator 43 built in the shield 5, FIG. 15 is a side view thereof, and FIG. 16 is a plan view thereof.

First, in FIGS. 11 to 13, the front cover 4 is divided into upper and lower parts at an intermediate part in the vertical direction, and the upper part thereof has a substantially triangular shape with a lower part protruding forward and an upward tapering shape in side view. It also has a substantially triangular shape that tapers forward in plan view. As a result, a space in front of the head pipe 26 formed between the front cover 4 and the leg shield 5 (hereinafter, referred to as a space 60 inside the front cover (FIG. 13)) has a wide lower lower rear side and goes forward and upward. Becomes narrower.

The air inlet 6 provided in front of the air outlet 8
Is opened at its left and right sides as a partition 6a extending vertically in the center, and a plurality of louvers 61 are formed in each opening in parallel with each other. Each louver 61 projects forward substantially in parallel, and its tip projects beyond the general surface (corresponding to the surface of the partition 6a) of the air intake 6, which is the front line of the front cover 4 (FIG. 8).

The vertical length L1 of the air intake 6 is equal to the radiator 4
3 (FIG. 8), and the lateral width W is also approximately equal to the lateral width of the radiator 43, and is disposed at a position overlapping the cooling fan 44 and the radiator 43 when viewed from the front (FIG. 9). The radiator reserve tank 45 disposed in the lower front part of the cooling fan 44 is disposed horizontally oblong to the center near the bottom of the space 60 inside the front cover so as not to block the air intake 6 (FIGS. 11 and 12).

A horn 4 is provided at the center of the upper part of the radiator 43.
6 are arranged. The horns 46 protrude upward from the radiator 43, and are arranged stepwise in the order of the horn 46, the radiator 43, the cooling fan 44, and the radiator reserve tank 45 in a side view from the rear upper side to the front lower side. Thus, the air inlet 6 is arranged in a slope (FIG. 11).

The air outlets 8 provided on the left and right of the rear of the air inlet 6 are provided with the radiator 4 for discharging the exhaust air of the radiator 43.
3 at both sides of the front surface of the leg shield 5 overlapping the head pipe 26 in a side view behind the front cover 4.
Is formed on a substantially flat, diagonally rearwardly directed exhaust side surface 62 which is formed to be long in the vertical direction along the joint portion with the air outlet. The vertical length L3 protrudes upward and downward from the vertical lengths L1 and L2 of the air intake 6 and the radiator 43 and is sufficiently large.

The air outlet 8 is opened obliquely rearward and outwardly, and is also provided with a plurality of louvers 63. As shown in FIG. 13, a baffle member 64 is provided inside the exhaust surface 62. The air guide member 64 is formed of plastic or the like, has an opening shape corresponding to the air outlet 8, has a plurality of louvers 65, and has a mounting portion 66 formed in a peripheral portion thereof. Attached to the inside of the In the exhaust air of the present application, the exhaust surface 62
Is directed to the outside, so that the air can be effectively exhausted by itself. However, the provision of the wind guide member enhances the rectifying effect and further improves the cooling performance.

As shown in FIGS. 13 to 16, a bracket 26a is welded to the upper part of the front surface of the head pipe 26,
A bracket 70 is bolted to the lower part, and the upper part of the radiator 43 is bolted to the bracket 26a.
And the lower back surface is also attached to the bracket 70 with the same fastening portion 72 (FIG. 15).

The rear guide plate 73 is a head pipe 2
6 is provided in the vertical direction along the entire length of the front surface of the straight portion, and has a substantially U-shape in a side view in which the left and right sides are opened outward. The air guide surface 73a extends outward and is inclined obliquely rearward. The exhaust air that has passed through the radiator 43 is guided by the air guide surface 73a, and is quickly returned to the air guide member 6.
4 and the air outlet 8, from which the air is discharged outside the vehicle.

A stay 74 extending forward is provided below the bracket 70, and the side of the radiator reserve tank 45 is attached to the tip of the stay 74 with a screw 75 or the like. Although not apparent from the drawing, the opposite side of the radiator reserve tank 45 is similarly supported by the lower portion of the bracket 70. The bottom back of the radiator reserve tank 45 is a bottom bridge 76
Is located near the tip of. Caps 77, 78 provided on the upper portions of the radiator reserve tank 45 and the radiator 43, respectively.
The tubes 79 communicate with each other. When the temperature of the radiator water becomes high, cooling water flows into the radiator reserve tank 45 through the tubes 9, and returns to the radiator 43 when the temperature drops.

The shape of the radiator reserve tank 45 is located at the lower part and the left side of the cooling fan 44.
4 to form a wind path and serve as a guide. A separate member for rectification is not required, so that the size is reduced and the number of parts is reduced. Since the turn signal 7 (FIG. 1) exists on the right side of the cooling fan 44, the turn signal 7 also plays a role in forming the air passage.

The cooling fan 44 is sized to overlap the front of the radiator 43 (FIGS. 15 and 16), and its upper part is attached to the upper part of the radiator 43 by bolts 80. Although not clear in the figure, the lower side is similarly attached to the radiator 43, and the tube 79 is fixed by the clamp 82 at the upper end of the fan cover 81.

Further, a drain tube 83 extending from the vicinity of the cap 78 of the radiator reserve tank 45 is guided and supported substantially half way around the upper half of the fan cover 81. The cooling fan 44 sends outside air taken in from the air intake port 6 to the rear radiator 43 for forced cooling. As is apparent from FIG. 16, the horn 46 is attached to a stay 84 integrated with the bracket 26a by a screw 85 or the like.

Next, the operation of this embodiment will be described. Since the cooling fan 44 is arranged between the air inlet 6 and the radiator 43, the outside air taken in from the air inlet 6 by the cooling fan 44 cools the radiator 43, and becomes warm exhaust air to the air guide surface 73. The air is guided and discharged to the rear outside from the air outlet 8, and further guided to the air discharge surface 62 and flows outward.

At this time, since the cooling fan 44 having a smaller width than the radiator 43 is located in front of the radiator 43,
The amount of forward projection of the front cover 4 can be reduced, and the cooling efficiency is not impaired because the radiator 43 is arranged away from the air intake 6. Therefore, the cooling efficiency of the radiator 43 can be kept good while the front cover 4 is downsized.

Since the vertical length L1 of the air inlet 6 is substantially equal to the vertical length L2 of the radiator 43, a sufficient amount of air can be secured and the cooling efficiency of the radiator 43 can be increased. Further, since the air outlet 8 is provided on the air outlet surface 62 which is directed obliquely rearward on both sides of the leg shield 5 corresponding to the rear cover in the present invention, the warm air exhaust which has cooled the radiator 43 is provided on the air outlet surface 62. The air can be smoothly guided to the rear outside by being guided to the air outlet 8. Therefore,
Since the wind is guided using the surface of the leg shield 5, which is a design component, without providing a separate wind guide member, the appearance can be improved without increasing the number of components. Moreover,
Since the vertical length L3 of the exhaust port 8 is made longer in the vertical direction than L1 of the air inlet 6, it is possible to improve the ventilation of the exhaust air and further increase the cooling efficiency.

Further, a louver 61 extending substantially in the horizontal direction is provided in the air inlet 6, and the tip of the louver 61 is projected forward from the front line (6a) of the front cover 4, so that the efficiency of taking in outside air is improved. I do. In addition, a radiator reservoir tank 45, which is a relatively large-capacity component, is disposed in the front lower part of the radiator 43 in the front cover 4, and a horn 36, which is a relatively small component, is disposed in a narrow space above the center of the radiator 43. Therefore, these components can be efficiently accommodated in the space 60 inside the front cover, and the front cover 4 can be made compact in this respect by effectively utilizing the dead space.

In addition, a relatively large headlight 11
Is provided in front of the handle cover 10 and the front cover 4
The horn 46, which is a small component, is arranged in a narrow space above the radiator 43 in the inside, so that the radiator 43, the cooling fan 44, the radiator reserve tank 45, and the horn 46
Can be accommodated in the front cover 4 in a space-efficient manner, and each of these components including the headlight 11 can be disposed in the front of the vehicle body in a space-efficient manner.

Further, since the warm exhaust air is guided outward by the air guide surface 73 provided on the bracket 70 for supporting the radiator 43, the air can be efficiently exhausted without providing a special air guide member. The number of parts can be reduced and the structure can be simplified. However, if the air guide member 64 is provided inside the air outlet 8 as shown in FIG.

[Brief description of the drawings]

FIG. 1 is an external side view of a motorcycle to which the present embodiment is applied.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view showing a layout of main parts in the front half of the vehicle body.

FIG. 4 is a side view of the rear half of the vehicle body following FIG. 3;

FIG. 5 is a plan view showing a layout of main components in the first half of the vehicle body.

FIG. 6 is a plan view of the rear half of the vehicle body following FIG. 6;

FIG. 7 is a view showing the engine periphery with a part of a body cover cut away.

FIG. 8 is a perspective view of a vehicle body frame.

FIG. 9 is a plan view thereof.

FIG. 10 is a perspective view of a floor tray provided under the floor.

FIG. 11 is an enlarged side view of a front cover and a leg shield part.

FIG. 12 is a plan view thereof.

FIG. 13 is a diagram showing the front cover with its upper part cut away from diagonally forward.

FIG. 14 is a perspective view showing a component arrangement structure around a radiator.

FIG. 15 is a side view thereof.

FIG. 16 is a plan view thereof.

[Explanation of symbols]

4: front cover, 5: leg shield, 6: air inlet, 8: exhaust port, 10: handle cover, 11: headlight, 12: floor panel, 13: rear cover, 1
4: seat, 15: maintenance lid, 17: pillion step, 18: flat part, 19: tail light unit, 20: key hole, 21: swing type power unit,
25: body frame, 26: head pipe, 43: radiator, 44: cooling fan, 45: radiator reserve tank, 46: horn, 50: cylinder, 51: cylinder head, 52: cylinder head cover, 53: ignition plug, 54: Vaporizer, 60; bracket

Continued on the front page (72) Inventor Tomofumi Kuramitsu 1-4-1 Chuo, Wako-shi, Saitama Pref. Inside of Honda R & D Co., Ltd. (72) Inventor Kenichi Sueda 1-4-1 Chuo, Wako-shi, Saitama Co., Ltd. Inside the Honda Research Laboratory

Claims (7)

[Claims] A radiator and a cooling fan are accommodated in a front cover disposed above a front wheel of a scooter type vehicle, and the radiator is cooled by an air intake provided in the front cover. A wind guide structure at a front portion of a vehicle in a scooter-type vehicle, wherein a cooling fan is disposed between the two. 2. A wind guiding structure at a front portion of a scooter type vehicle according to claim 1, wherein said air intake is provided at a length substantially equal to a vertical length of a radiator. 3. A rear cover that covers the front cover from the rear side of the vehicle body, and has a vent hole, and the vent holes are provided on both sides of the rear cover on a vent surface directed rearward. A wind guide structure for a front portion of a vehicle body in the scooter type vehicle according to claim 1. 4. A wind guiding structure at a front portion of a scooter-type vehicle according to claim 3, wherein said exhaust port is formed to be longer in a vertical direction than said air intake port. 5. The air intake according to claim 1, further comprising a louver extending in a substantially horizontal direction, wherein a tip of the louver protrudes from a front line of the front cover.
The wind guide structure at the front of the vehicle body of the scooter type vehicle described in the above. 6. A scooter-type vehicle according to claim 1, wherein a radiator reservoir tank is disposed in a front lower portion of the radiator in the front cover. 7. The horn according to claim 1, wherein a horn is disposed in the space above the radiator in the front cover, and a headlight is provided on a front surface of a handle cover disposed above the front cover. The wind guiding structure at the front of the vehicle body of the scooter type vehicle described.