JP7431948B2 - Radiator exhaust structure for saddle-type vehicles - Google Patents

Description

The present invention relates to a radiator exhaust structure for a saddle type vehicle.

BACKGROUND ART Conventionally, a scooter-type saddle-ride vehicle is known in which a radiator is disposed behind a front fender and an exhaust port is provided in an undercover that covers the lower part of the vehicle body (see, for example, Patent Document 1).
The exhaust air that has passed through the radiator flows downward through the exhaust port.

Utility model registration No. 3170123

In the above-mentioned vehicle, the exhaust air may not flow out completely from the exhaust port and may flow into the vehicle. For example, the exhaust air flows into the space between the undercover and the floor step. In particular, if the displacement is large, the amount of heat of the exhaust air flowing backward from the radiator is large, so if electrical components such as batteries are disposed in this space, there is a concern that the electrical components may be affected by heat.
SUMMARY OF THE INVENTION An object of the present invention is to provide a radiator exhaust structure for a saddle-ride type vehicle that can effectively control the exhaust air from a radiator.

This specification includes all contents of Japanese patent application/Japanese Patent Application No. 2020-063468 filed on March 31, 2020.
The radiator ventilation structure of a saddle-ride type vehicle includes a radiator (66) disposed behind the front wheels (13) and an exhaust port (61c) that discharges the exhaust air that has passed through the radiator (66) downward from the vehicle body. In the radiator ventilation structure for a scooter-type saddle-ride vehicle, an exhaust is provided behind the radiator (66) to cover the radiator (66) and guide the exhaust air from the radiator (66) to the exhaust port (61c). The exhaust wall (85) includes an opening (85e) through which part of the exhaust air from the radiator (66) can flow upwardly than the radiator (66). A front inner cover (53) that covers the rear surface of the front part of the vehicle is provided behind the radiator (66), and the opening (85e) of the exhaust wall (85) is connected to the front inner cover (53). The exhaust air flowing out from the opening ( 85e) hits the front surface (53a) of the front inner cover (53) and is guided to the front surface (53a) of the front inner cover (53). The opening (85e) is characterized in that it opens directly facing the front inner cover (53) so as to flow upward .

In the above configuration, the front inner cover (53) may be inclined such that the upper part is located further forward than the lower part.

Further, in the above configuration, a barrier (143b) may be disposed that protrudes from the front surface of the front inner cover (53) toward the front of the vehicle and prevents the exhaust air from rising from the radiator (66).
Furthermore, in the above configuration, the barrier wall (143b) may be provided above the lower end of the lamp (141) provided at the front of the vehicle.

Further, in the above configuration, the exhaust wall (85) includes a rear wall portion (85d) facing the back surface of the radiator (66), and the rear wall portion (85d) is connected to the exhaust port (61c). The opening (85e) may be arranged behind the inclined wall (61g) extending diagonally upward and forward from the rear edge, and the opening (85e) may be arranged above the inclined wall (61g).
Further, in the above configuration, the center frame (20) extends downward from the head pipe (18) constituting the front end of the vehicle body frame (11), and a cross that extends in the vehicle width direction is located behind the inclined wall (61g). The rear wall portion (85d) may be connected to a frame (94) and supported by the center frame (20).

The radiator ventilation structure of a saddle-ride type vehicle includes an exhaust wall behind the radiator that covers the radiator and guides the exhaust air from the radiator to the exhaust port. It also has an opening that allows the air to flow upward, so by directing some of the exhaust air from the radiator upward, the direction of the air from the radiator can be well controlled, allowing electrical equipment, etc. It is possible to suppress the thermal influence on
Depending on the layout of the vehicle, it may be difficult to provide a large space between the radiator and the ventilation wall, and the exhaust air from the radiator may accumulate between the radiator and the ventilation wall, causing the air to flow around the ventilation wall and the ventilation wall. In some cases, the air leaks from the gap between the engine and the vehicle and enters the rear side of the vehicle body, but in the present invention, this can be suppressed by controlling the exhaust air from the radiator.

In the above configuration, a front inner cover that covers the rear surface of the front of the vehicle is provided behind the radiator, and the opening of the air exhaust wall is directed toward the front of the front inner cover, so that the radiator is discharged from the opening. Exhaust air can flow upward along the front inner cover, thereby suppressing the effect of heat on electrical components and the like disposed at the upper front portion of the vehicle.

In addition, in the above configuration, the front inner cover is slanted so that the upper part is located further forward than the lower part, so that the exhaust air from the radiator can be more reliably flowed upward along the front inner cover, and the vehicle It is possible to suppress the influence of heat on electrical components, etc. located on the upper front side.

In addition, in the above configuration, the barrier wall that protrudes toward the front of the vehicle from the front of the front inner cover and prevents the rise of the exhaust air from the radiator is arranged, so that the rise of the exhaust air from the radiator can be delayed and the exhaust air from the radiator can be prevented from rising. The temperature of the exhaust air from the radiator can be lowered before the air reaches the top of the vehicle. Thereby, it is possible to suppress the influence of heat on the upper side of the vehicle. For example, it is possible to suppress the effects of heat on electrical components around the handle.

In addition, in the above configuration, since the barrier is provided above the lower end of the lamp installed at the front of the vehicle, the barrier can change the path of the exhaust air from the radiator above the lower end of the lamp, allowing the lamp to The amount of exhaust air flowing through the radiator can be reduced.
Further, in the above configuration, the exhaust wall includes a rear wall portion facing the back surface of the radiator, and the rear wall portion is disposed behind the inclined wall extending obliquely upward and forward from the rear edge of the exhaust opening. Since the radiator is disposed above the inclined wall, the exhaust air from the radiator can be divided into the lower part of the vehicle body and the upper part of the vehicle body.

In addition, in the above configuration, the center frame extends downward from the head pipe that constitutes the front end of the vehicle body frame, and is connected to a cross frame that extends in the vehicle width direction located behind the inclined wall, and the rear wall is supported by the center frame. Therefore, the exhaust wall can be supported using a part of the vehicle body frame, and there is no need to provide a special support part for the exhaust wall. In addition, since the center frame is disposed behind the inclined wall, the center frame does not obstruct the flow of air flowing downwards of the vehicle body, allowing exhaust air from the radiator to flow smoothly downwards of the vehicle body.

FIG. 1 is a left side view showing a motorcycle according to an embodiment of the present invention. FIG. 2 is a perspective view showing the radiator and its surroundings. FIG. 3 is a perspective view showing the exhaust gas regulating member and the undercover. FIG. 4 is a perspective view showing the radiator, the exhaust air regulating member, and the surroundings thereof. FIG. 5 is a perspective view showing the exhaust air regulating member. FIG. 6 is a cross-sectional view of the front part of the motorcycle taken longitudinally in the front-rear direction at the center in the vehicle width direction.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In addition, in the description, directions such as front, rear, left, right, and top and bottom are the same as directions with respect to the vehicle body unless otherwise specified. Further, the symbol FR shown in each figure indicates the front of the vehicle body, the symbol UP indicates the upper part of the vehicle body, and the symbol LH indicates the left side of the vehicle body.
FIG. 1 is a left side view showing a motorcycle 10 according to an embodiment of the present invention.
In the motorcycle 10, a front wheel 13 is supported at the front end of a body frame 11 via a front fork 12, and a rear wheel 15 is supported at a lower portion of the body frame 11 via a power unit 14.
The motorcycle 10 is a saddle-ride type vehicle that is ridden astride a seat 16 disposed above a body frame 11 .

The vehicle body frame 11 includes a head pipe 18, a pair of left and right down frames 19A, a pair of left and right lower frames 19B, a center frame 20, a pair of left and right rear frames 21, and a pair of left and right floor frames 22.
The head pipe 18 constitutes the front end of the vehicle body frame 11, and is inclined rearward when viewed from the side of the vehicle. The left and right down frames 19A extend diagonally downward and laterally from the left and right sides of the lower portion of the head pipe 18, respectively.

The left and right lower frames 19B integrally extend rearward from the rear ends of bent portions 19C provided at the lower ends of the left and right down frames 19A, respectively. The center frame 20 extends diagonally downward and rearward from the top of the head pipe 18 to the rear of the left and right down frames 19A. The left and right rear frames 21 extend rearward and obliquely upward from the respective rear portions of the left and right lower frames 19B. The left and right floor frames 22 are located above the left and right lower frames 19B when viewed from the side of the vehicle, and connect the left and right down frames 19A and the left and right rear frames 21 back and forth, and form a floor step which will be described in detail later. I support 56.

The front fork 12 is rotatably supported by a head pipe 18, has a handle 31 attached to its upper end, and has a front wheel 13 supported at its lower end via an axle 32. The front wheel 13 is covered with a front fender 33 attached to the front fork 12 from above.
The power unit 14 is attached to the rear ends of the left and right lower frames 19B via links so as to be able to swing up and down, and includes an engine 35 that constitutes the front part, and a continuously variable transmission 36 that is integrally provided at the rear of the engine 35. It consists of
The body cover 46 that covers the body frame 11 includes a front cover 51, a pair of left and right front side covers 52, a front inner cover 53, a floor step 56, a pair of left and right floor side skirts 57, a center cover 58, and a pair of left and right body side covers 59. , a handle cover 60, and an under cover 61.

The front cover 51 covers the head pipe 18 and its surroundings from the front. The left and right front side covers 52 are provided continuously at the lower edge of the front cover 51, cover the upper part of the front fork 12 from the sides and rear, and are connected to the left and right ends of the front cover 51 to cover the driver's legs. Cover from the front. The front inner cover 53 covers the left and right down frames 19A and the center frame 20 from the rear, and is inclined so that the upper part is located further forward than the lower part behind the radiator 66.
The floor step 56 extends downward and rearward from the lower end of the leg shield 54 and serves as a footrest for the driver. The left and right floor side skirts 57 extend downward from the left and right edges of the floor step 56.

The center cover 58 extends from the rear end of the floor step 56 to below the front end of the seat 16.
The left and right body side covers 59 extend from the floor step 56 and the center cover 58 toward the rear of the vehicle below the side edges of the seat 16. The handle cover 60 covers the central portion of the handle 31.
The undercover 61 is arranged between the lower edges of the left and right floor side skirts 57, and covers the lower part of the vehicle body from below.
A radiator 66 is arranged between the left and right down frames 19A. Note that one down frame 19A may be used.

FIG. 2 is a perspective view showing the radiator 66 and its surroundings, as seen diagonally from the front.
The left and right down frames 19A each have a bent portion 19C bent rearward at the lower end, and a lower front cross frame 81 is passed between the left and right bent portions 19C.
A radiator 66 is arranged between the left and right down frames 19A and above the lower front cross frame 81 so as to be inclined rearward with respect to the vertical direction.

The radiator 66 includes an upper tank 66a and a lower tank 66b storing cooling water for cooling the engine 35 (see FIG. 1), and a core 66c disposed between the upper tank 66a and the lower tank 66b, respectively. The upper tank 66a is arranged at the upper end of the radiator 66, and the lower tank 66b is arranged at the lower end of the radiator 66.
An exhaust gas regulating member 85 serving as an exhaust wall that restricts the direction of exhaust air passing through the radiator 66 is arranged so as to surround the radiator 66 above, below, left, right, and rearward.
The front portion of the undercover 61 is fixed to the lower front cross frame 81 below the radiator 66 by engagement.

FIG. 3 is a perspective view showing the exhaust air regulating member 85 and the undercover 61, and shows a state in which the vehicle body frame 11 and the radiator 66 are omitted from the state shown in FIG.
The exhaust air regulating member 85 includes an upper wall 85a, a lower wall 85b, left and right side walls 85c, and a rear wall 85d. The portion 85d covers the radiator 66 (see FIG. 2).
The undercover 61 includes a lower opening 61c as an air exhaust port that vertically penetrates the front portion.

The undercover 61 includes a front wall 61e extending upward from a flat bottom wall 61d, a pair of left and right side walls 61f, 61z, and an inclined rear wall 61g as an inclined wall that slopes upward in the front. The side walls 61f, 61z and the inclined rear wall 61g form a lower opening 61c.
The side walls 61f, 61z extend above the front wall 61e. The inclined rear wall 61g includes a slit (not shown) through which the rear edge of the side wall 85c on one side (right side) of the exhaust air regulating member 85 is passed back and forth.

The side wall portion 85c on one side (right side) of the exhaust gas regulation member 85 is arranged inside the side wall 61f on the one side (right side) of the undercover 61 in the vehicle width direction, and The side wall portion 85c is disposed on the outside of the other (left side) side wall 61z of the undercover 61 in the vehicle width direction. A plurality of radiator pipes 82 connected to the radiator 66 (see FIG. 2) are arranged between the left side wall portion 85c of the exhaust gas regulating member 85 and the left side wall 61z of the undercover 61.
The rear wall portion 85d of the exhaust air regulating member 85 is disposed behind the inclined rear wall 61g of the undercover 61, and the rear opening portion 85e as an opening described in detail in the explanation of FIG. 4 is larger than the inclined rear wall 61g. placed above.

FIG. 4 is a perspective view showing the radiator 66, the exhaust air regulating member 85, and their surroundings, as seen diagonally from the rear.
The left and right lower frames 19B are connected by a lower rear cross frame 94, which is a cross frame that bends upwardly to form a convex shape. The lower rear cross frame 94 extends in the vehicle width direction, and the lower end portion of the center frame 20 is connected to the top 94a of the lower rear cross frame 94 at the center in the vehicle width direction. The radiator 66 and most of the exhaust air regulating member 85 are arranged in front of the center frame 20.

The exhaust air regulating member 85 includes a rear opening 85e at the upper part of the rear wall 85d, and an upper fixing part 85f and a lower fixing part 85g provided at the upper and lower edges of the rear opening 85e, respectively. .
The rear opening 85e is located above the inclined rear wall 61g (see FIG. 3), and can allow part of the exhaust air from the radiator 66 to flow toward the rear of the radiator 66 and above the radiator 66.

The upper fixing portion 85f consists of a pair of left and right upper rear wall portions 85h and 85j that constitute a part of the rear wall portion 85d, and the inner edges of the left and right upper rear wall portions 85h and 85j are engaged with each other so that the center frame 20 Fixed. The lower fixing part 85g consists of a band part 85k whose horizontally elongated central part is provided integrally with the exhaust gas regulating member 85 at the lower edge of the rear opening part 85e, and the band part 85k is wound around the center frame 20. Both ends of 85k are engaged and fixed to center frame 20.

FIG. 5 is a perspective view showing the exhaust air regulating member 85, and shows a state in which the vehicle body frame 11, the undercover 61, the reservoir tank 88, and the radiator 66 are omitted from the state shown in FIG.
The upper rear wall portion 85h on the left side of the upper fixing portion 85f includes a cutout portion 85x at its lower edge, in which a water intake port (not shown) of the radiator 66 is arranged.
The upper wall portion 85a of the exhaust air regulating member 85 is composed of a pair of left and right upper wall portions 85m and a right upper wall portion 85n, and the inner edges of the upper left wall portion 85m and the upper right wall portion 85n are engaged with each other. The upper left wall portion 85m and the upper right wall portion 85n have semicircular notches 85p formed at their inner edges, and the center frame 20 (see FIG. 4) is inserted into the hole 85q formed by the left and right notches 85p. Passed. Further, the upper right wall portion 85n includes a through hole 85r through which a water inlet (not shown) of the radiator 66 (see FIG. 2) is passed.

An outer extension portion 85s (only one outer extension portion 85s is shown) that is integrally bent downward is provided on the outer edge of each of the upper left wall portion 85m and the upper right wall portion 85n. The pair of left and right outer extensions 85s extend along the left and right side walls 85c (only one side wall 85c is shown).
A vertically long slit 85w is formed in each of the left and right side wall portions 85c and the left and right outer extension portions 85s. The slits 85w are portions through which plate-shaped attached parts (not shown) provided on both sides of the radiator 66 are passed, and the slits 85w of the side wall part 85c and the outer extension part 85s overlap in the vehicle width direction. There is. By inserting the attached portion into the slit 85w, the exhaust air regulating member 85 can be held, and swinging of the exhaust air regulating member 85 can be suppressed.

The upper left wall portion 85m and the upper right wall portion 85n each include an upper flange portion 85t that bends upward at their front edge, and the left and right outer extension portions 85s include a lateral flange portion that bends laterally at their respective front edges. 85u (only one horizontal flange portion 85u is shown), and the upper flange portion 85t and the horizontal flange portion 85u are integrally formed.
A notch 85v is formed in the lower edge of the rear wall portion 85d, and a plurality of radiator pipes 82 are passed through the notch 85v.

FIG. 6 is a cross-sectional view of the front part of the motorcycle 10 taken longitudinally in the front-rear direction at the center in the vehicle width direction.
A louver 111 is arranged in front of the radiator 66. The louver 111 includes a plurality of blades 111a arranged vertically apart from each other, and regulates the direction of the flow of air taken into the radiator 66. Here, the airflow is directed backward and diagonally downward.
An electrical component 116 is arranged below the floor step 56 and above the undercover 61 and behind the lower rear cross frame 94.

Furthermore, a lower opening 61c of the undercover 61 is arranged behind the radiator 66. The upper end 61p of the front wall 61e of the undercover 61 is located below the lower end 66j of the core 66c of the radiator 66.
The inclined rear wall 61g includes an upper inclined wall 61q extending vertically in front of the lower rear cross frame 94, a lower inclined wall 61r extending rearward and diagonally downward below the lower rear cross frame 94, and a lower inclined wall lower part 61r in front of the lower rear cross frame 94. It consists of a sloped wall bent part 61s that is bent to connect the sloped wall upper part 61q and the sloped wall lower part 61r, respectively. The upper end 61t of the inclined wall upper part 61q is located behind the fan motor 114.

The space 118 surrounded by the lower opening 61c, the front wall 61e, the left and right side walls 61f, 61z (see FIG. 3), and the inclined rear wall 61g forms an exhaust passage 120 through which the exhaust air from the radiator 66 passes. do.
The exhaust passage 120 is arranged below the lower rear cross frame 94 and the inclined rear wall 61g (specifically, the lower part of the inclined wall 61r).
The lower part of the rear wall part 85d of the exhaust air regulating member 85 is arranged between the inclined rear wall 61g (specifically, the upper part of the inclined wall 61q) of the undercover 61, the lower part of the center frame 20, and the lower rear cross frame 94. ing. Since the center frame 20 is located behind the exhaust air regulating member 85, the exhaust air regulating member 85 can be prevented from shifting rearward.

As shown by arrow A, air taken into the radiator 66 from the front of the radiator 66 via the louver 111 becomes radiator exhaust air and flows to the rear of the radiator 66, specifically, the air exhaust path, as shown by arrow B. 120 and flows rearward and diagonally downward along the inclined rear wall 61g. The air is further discharged to the outside of the undercover 61 from the lower opening 61c, and flows rearward under the bottom wall 61d. By tilting the radiator 66 backward, the radiator exhaust air tends to flow backward and obliquely downward.

The rear opening 85e of the exhaust air regulating member 85 is directed toward the front surface 53a of the front inner cover 53.
A headlight 141 serving as a lighting device, an exhaust wind suppression member 143, and the like are arranged around the head pipe 18 at the front of the vehicle.
The exhaust air suppressing member 143 includes a wall portion 143a extending in the vertical direction, and the wall portion 143a is arranged along the front surface 53a of the front inner cover 53. The wall portion 143a is integrally provided with a forward extending wall portion 143b as a barrier that protrudes forward from the front surface thereof.

The wall portion 143a is disposed in front of the front inner cover 53, and the front extending wall portion 143b obstructs the flow of exhaust air from the radiator 66 rising along the front surface 53a, and delays the air from rising further upward.
Note that the front extending wall portion 143b may be integrally molded on the front surface 53a of the front inner cover 53.
The reference numeral 144 shown in the figure is a horizontal line passing through the lower end of the front extending wall portion 143b, and the front extending wall portion 143b is arranged above the lower end 141a of the headlight 141.

Part of the exhaust air from the radiator 66 hits the rear wall 85d of the exhaust gas regulating member 85 and rises, as shown by arrow C, and flows out from the rear opening 85e, or directly flows to the rear as shown by arrow D. It flows out from the opening 85e and rises along the front surface 53a of the front inner cover 53 as shown by arrow E. Since the temperature of the exhaust air from the radiator 66 is high, the temperature tends to rise.
Then, the raised exhaust air from the radiator 66 is prevented from rising by the front extending wall portion 143b of the exhaust air suppressing member 143, and thus rises while bypassing the front extending wall portion 143b, as shown by arrow F.

During this period, the temperature and rising speed of the exhaust air from the radiator 66 gradually decreases, so the exhaust air from the radiator 66 becomes difficult to flow toward the headlights 141 and the electrical components 142, and has no effect on the headlights 141 and the electrical components 142. Heat effects are suppressed. Furthermore, when the exhaust air from the radiator 66 rises to the vicinity of the handle 31 (see FIG. 1), the thermal influence on electrical components such as a meter around the handle 31 is suppressed.

If an opening is provided in the upper wall portion 85a of the exhaust air regulating member 85, the exhaust air from the radiator 66 flowing upward from the opening will rise away from the front surface 53a of the front inner cover 53. It rises while spreading forward, backward, left and right. As a result, the exhaust air from the radiator 66 tends to flow toward the headlight 141 and the electrical component 142, which tends to have a thermal effect on the headlight 141 and the electrical component 142.

In this embodiment, by providing the rear opening 85e on the rear wall 85d of the exhaust air regulating member 85, the exhaust air from the radiator 66 is raised along the front surface 53a of the front inner cover 53, and the exhaust air from the radiator 66 is raised along the front surface 53a of the front inner cover 53. It suppresses the spread of wind. Since many of the headlights 141 and various electrical components arranged at the upper front of the vehicle are located far from the front surface 53a, by directing the exhaust air from the radiator 66 along the front surface 53a, the headlights 141 and various electrical components etc. This makes it difficult for the exhaust air from the radiator 66 to hit the air.

In addition, by reducing the speed of exhaust air from the radiator 66 that rises along the front surface 53a with the front extending wall portion 143b serving as a baffle, electrical components around the handle 31 provided at a high position in the upper front portion of the vehicle can be removed. Measures are being taken to ensure that the heat does not affect the equipment.
Further, since the front extending wall portion 143b is disposed above the lower end 141a of the headlight 141, even if part of the exhaust air that has bypassed the front extending wall portion 143b rises toward the front of the vehicle, , can be prevented from directly heading toward the headlights 141, and the influence of heat on the headlights 141 can be suppressed.

As shown in FIGS. 4 and 6 above, a scooter-type saddle-riding type includes a radiator 66 disposed behind the front wheel 13 and a lower opening 61c that discharges the exhaust air that has passed through the radiator 66 downward from the vehicle body. In the radiator ventilation structure of the motorcycle 10 as a vehicle, an exhaust gas regulation member 85 is provided behind the radiator 66 to cover the radiator 66 and guide the exhaust air from the radiator 66 to the lower opening 61c. , is provided with a rear opening 85e through which part of the exhaust air from the radiator 66 can flow upward from the radiator 66.
According to this configuration, by directing part of the exhaust air from the radiator 66 upward, the direction of the exhaust air from the radiator 66 can be well controlled, and the influence of heat on electrical components and the like can be suppressed.

Further, as shown in FIGS. 1 and 6, a front inner cover 53 that covers the rear surface of the front part of the vehicle is provided behind the radiator 66, and the rear opening 85e of the exhaust gas regulating member 85 is connected to the front inner cover 53. It is directed toward the front surface 53a.
According to this configuration, the exhaust air from the radiator 66 discharged from the rear opening 85e can flow upward along the front inner cover 53, thereby reducing the thermal influence on electrical components and the like disposed on the upper front side of the vehicle. can be suppressed.

Moreover, as shown in FIG. 6, the front inner cover 53 is inclined so that the upper part is located further forward than the lower part.
According to this configuration, the exhaust air from the radiator 66 can be more reliably flowed upward along the front inner cover 53, and the influence of heat on electrical components and the like disposed on the upper front side of the vehicle can be suppressed.

Further, a front extending wall portion 143b is disposed that protrudes from the front surface of the front inner cover 53 toward the front of the vehicle and prevents the exhaust air from the radiator 66 from rising.
According to this configuration, the rise of the exhaust air from the radiator 66 can be delayed, and the temperature of the exhaust air from the radiator 66 can be lowered before the exhaust air from the radiator 66 reaches around the upper handle 31 (see FIG. 1). Can be done. Thereby, the influence of heat on electrical components and the like around the handle 31 can be suppressed.

Further, the front extending wall portion 143b is provided above the lower end 141a of the headlight 141 provided at the front of the vehicle.
According to this configuration, the forward extending wall portion 143b can change the path of the exhaust air from the radiator 66 above the lower end 141a of the headlight 141, thereby suppressing the amount of exhaust air from the radiator 66 flowing toward the headlight 141. can.

Further, as shown in FIGS. 3 and 6, the exhaust air regulating member 85 includes a rear wall portion 85d facing the back surface of the radiator, and the rear wall portion 85d is diagonally upward from the rear edge of the lower opening portion 61c. It is arranged behind the inclined rear wall 61g that extends forward, and the rear opening 85e is arranged above the inclined rear wall 61g.
According to this configuration, the exhaust air from the radiator 66 can be divided into the lower part of the vehicle body and the upper part of the vehicle body. Thereby, the direction of exhaust air from the radiator 66 can be well controlled.

Further, as shown in FIGS. 1, 4, and 6, the center frame 20 extends downward from the head pipe 18 constituting the front end of the vehicle body frame 11, and extends in the vehicle width direction behind the inclined rear wall 61g. It is connected to an extending lower rear cross frame 94, and a rear wall portion 85d is supported by the center frame 20.
According to this configuration, the exhaust gas regulating member 85 can be supported using a part of the vehicle body frame 11, and there is no need to provide a special support portion for the exhaust gas regulating member 85. Furthermore, since the center frame 20 is disposed behind the inclined rear wall 61g, the center frame 20 does not obstruct the flow of the exhaust air from the radiator 66 flowing downward to the vehicle body, and the air from the radiator 66 can be smoothly exhausted downward from the vehicle body. can be passed to.

The embodiment described above merely shows one aspect of the present invention, and can be arbitrarily modified and applied without departing from the spirit of the present invention.
The present invention is applicable not only to the motorcycle 10 but also to saddle type vehicles including vehicles other than the motorcycle 10.

10 Motorcycles (saddle-type vehicles)
11 Body frame 13 Front wheel 18 Head pipe 20 Center frame 53 Front inner cover 61c Lower opening (ventilation port)
61g Slanted rear wall (slanted wall)
66 Radiator 85 Exhaust air regulating member (exhaust wall)
85d Rear wall portion 85e Rear opening (opening)
94 Lower rear cross frame (cross frame)
141 Headlight (lighting device)
143b Front extending wall (barrier)

Claims (6)

A radiator exhaust for a scooter-type saddle-ride vehicle, which includes a radiator (66) disposed behind a front wheel (13), and an exhaust port (61c) for discharging the exhaust air that has passed through the radiator (66) downward from the vehicle body. In the wind structure,
An exhaust wall (85) is provided behind the radiator (66) to cover the radiator (66) and guide exhaust air from the radiator (66) to the exhaust port (61c),
The exhaust wall (85) includes an opening (85e) that allows part of the exhaust air from the radiator (66) to flow upward from the radiator (66),
A front inner cover (53) is provided behind the radiator (66) to cover the rear surface of the front part of the vehicle,
The opening (85e) of the air exhaust wall (85) is directed toward the front surface (53a) of the front inner cover (53) , and the exhaust air flowing out from the opening (85e) is directed toward the front inner cover (53). The opening (85e) opens directly opposite the front inner cover (53) so that it hits the front surface (53a) of the front inner cover (53) and flows upward while being guided by the front surface (53a) of the front inner cover (53). A radiator exhaust structure for a saddle type vehicle characterized by the following. 2. The radiator ventilation structure for a saddle-ride type vehicle according to claim 1, wherein the front inner cover (53) is inclined so that an upper portion thereof is positioned further forward than a lower portion. According to claim 1 or 2, a barrier wall (143b) is disposed that projects from the front surface of the front inner cover (53) toward the front of the vehicle and prevents the exhaust air from rising from the radiator (66). Radiator exhaust structure for saddle-type vehicles. 4. The radiator ventilation structure for a saddle type vehicle according to claim 3, wherein the barrier wall (143b) is provided above a lower end of a lamp (141) provided at the front of the vehicle. The exhaust wall (85) includes a rear wall portion (85d) that faces the back surface of the radiator (66), and the rear wall portion (85d) extends obliquely upward from the rear edge of the exhaust port (61c). Any one of claims 1 to 4, wherein the opening (85e) is arranged at the rear of the inclined wall (61g) extending forward, and the opening (85e) is arranged above the inclined wall (61g). The radiator ventilation structure for the saddle-ride type vehicle described in 2. A center frame (20) extends downward from a head pipe (18) constituting the front end of the vehicle body frame (11) and is connected to a cross frame (94) extending in the vehicle width direction located behind the inclined wall (61g). 6. The radiator ventilation structure for a saddle-ride type vehicle according to claim 5, wherein the rear wall portion (85d) is supported by the center frame (20).

Images