JP7288822B2 - Wind guide structure for saddle type vehicle - Google Patents

Description

The present invention relates to techniques for guiding wind in saddle-type vehicles.

In Patent Document 1, a shroud consisting of two members, an outer shroud and an inner shroud, is provided in front of the knee grip portion of a straddle-type vehicle, and a vent opening toward the knee grip portion is provided between the outer shroud and the inner shroud, It is disclosed that part of the running wind is guided to the knee grip portion.

There is Patent Document 2 as another prior art document.

JP 2015-58922 A Japanese Patent Application Laid-Open No. 2006-213250

According to the technology disclosed in Patent Document 1, running wind flows toward knee grips and knees that are in close contact with the knee grips. In order to improve comfort, it is desirable to more effectively cool the cover around the seat in saddle-type vehicles.

The aim is then to cool the cover around the seat more effectively.

In order to solve the above problems, the wind guide structure in the straddle-type vehicle includes a cover provided around the seat, and a cover provided in front of the cover to direct the wind from the front of the straddle-type vehicle to the cover. and a running wind guide portion formed with a running wind guide path leading inward in the width direction.

As a result, the running wind is guided to the inside of the cover in the vehicle width direction by the running wind guide portion. This provides more effective cooling of the cover around the seat in a straddle-type vehicle.

1 is a schematic side view showing an overall configuration of a motorcycle provided with an air guide structure according to an embodiment; FIG. It is the perspective view which looked at the two-wheeled motor vehicle from diagonally forward. It is an exploded perspective view of an air guidance structure. 1 is a partial side view of a motorcycle; FIG. FIG. 5 is a partial cross-sectional view taken along line VV of FIG. 4; FIG. 10 is a diagram showing another example of a running wind guide section;

The air guidance structure of the straddle-type vehicle according to the embodiment will be described below. This wind guide structure is provided in a straddle-type vehicle. A straddle-type vehicle is a vehicle that is driven by a driver who is a user while straddling a seat. In the following embodiments, an example in which the straddle-type vehicle is a motorcycle will be described. This air guide structure can be applied to straddle-type vehicles such as motorcycles, tricycles, ATVs (All Terrain Vehicles), and personal water crafts.

FIG. 1 is a schematic side view showing the overall configuration of a motorcycle 10 having an air guide structure 40. FIG. In the following description, when referring to up and down, front and rear, and left and right, each direction is defined as follows. First, the side where the front wheels 20 and the rear wheels 22 of the motorcycle 10 contact the road surface is the bottom side, and the opposite side is the top side. Further, the traveling direction of the motorcycle 10 is the front side, and the opposite side is the rear side. Further, when the user is riding the motorcycle 10 as the driver, the left and right sides of the motorcycle 10 are the left and right sides of the motorcycle 10 with respect to the user. The width direction is the left and right vehicle width direction.

In the motorcycle 10, a front wheel 20 is rotatably provided on the front side of the vehicle body frame 11. As shown in FIG. A rear wheel 22 is rotatably provided on the rear side of the body frame 11 .

An engine 24 is mounted on the body frame 11 as a power unit. The engine 24 is supported under the body frame 11 between the front wheels 20 and the rear wheels 22 . A transmission 25 is provided at the rear portion of the engine 24 as an example of a transmission device for transmitting rotational driving force generated by the engine 24 to the rear wheels 22 . The rotational driving force of the engine 24 is transmitted to the rear wheels 22 via the transmission 25 and the like, whereby the rear wheels 22 are rotationally driven. Steps 26 are provided on both sides of the transmission 25 so as to protrude outward in the width direction. Step 26 is where the driver puts his/her feet.

Engine 24 includes a cylinder assembly 24a and a crankcase 24b. A space forming a combustion chamber is formed in the cylinder assembly 24a. The crankcase 24b is coupled to the lower portion of the cylinder assembly 24a and rotatably supports the crankshaft. Rotational motion of the crankshaft is transmitted to the camshaft via a cam chain or the like provided on one side (right side in this case) of the engine 24 . Also, the rotational motion of the crankshaft is transmitted to the transmission 25 via a drive gear or the like provided on one side (right side in this case) of the engine 24 .

A radiator 27 is provided on the front side of the engine 24 . The engine 24 is provided with a water jacket 24f through which cooling water flows. In FIG. 1, the cooling water flow paths in the water jacket 24f and the radiator 27 are illustrated in a simplified manner. The cooling water cools the engine 24 by circulating through the radiator 27 and the water jacket 24f.

A seat 12 is provided on the upper side of the longitudinally intermediate portion of the body frame 11 . Here, the seat 12 is a seat on which the driver sits. The seat 12 is provided above the engine 24 . Here, the seat 12 is provided obliquely upward on the rear side with respect to the engine 24 . A driver seated on the seat 12 puts his/her feet on the step 26 . At this time, the rider's legs form a sideways V-shape with the top facing forward on the sides of the motorcycle 10 . For example, the driver's legs above the knees extend from the seat 12 toward the front or diagonally downward. The driver's legs are bent at the knees, and the portions of the driver's legs below the knees extend from the knees downward or obliquely downward to the rear side. The sole is then placed on the step 26 . A tandem seat 12 b is provided behind the seat 12 . The tandem seat 12b is a seat on which a fellow passenger sits. The tandem seat 12b may be omitted.

A fuel tank 13 is provided in front of the seat 12 on the upper side of the longitudinally intermediate portion of the vehicle body frame 11 . When the driver is seated on the seat 12, the fuel tank 13 is positioned in front of the driver.

A handle 30 is provided on the front side of the body frame 11 . Here, a head pipe 32 is provided in the front portion of the vehicle body frame 11 . A steering shaft 33 is rotatably inserted through the head pipe 32 . A pair of upper and lower brackets 34 are supported on the steering shaft 33 . A front fork 36 is supported by the bracket 34 so as to extend downward. A front wheel 20 is rotatably supported on the lower end of the front fork 36 . Handle 30 is supported by bracket 34 . When the steering wheel 30 is operated, the steering shaft 33 , bracket 34 and front fork 36 rotate around the axis of the head pipe 32 . Along with this rotation, the front wheel 20 also rotates around the axis of the head pipe 32, and the direction of the front wheel 20 changes. A driver straddling the seat 12 can operate the steering wheel 30 while facing forward. A headlamp unit 38 is provided in the front portion of the motorcycle 10 .

A swing arm 15 is attached to the rear portion of the vehicle body frame 11 so as to extend rearward and downward. The swing arm 15 is swingably supported with respect to the body frame 11 so that the rear end of the swing arm 15 can be vertically displaced. A rear wheel 22 is rotatably supported at the rear end of the swing arm 15 .

The motorcycle 10 is provided with a knee grip cover 50 as an example of a cover provided around the seat 12 . Here, the knee grip cover 50 is divided into a front knee grip cover 52 and a rear knee grip cover 54 . The knee grip cover may be configured as one cover, or may be configured to be divided into a greater number of pieces. The knee grip cover 50 may be made of resin or the like, for example.

Here, the thickest frame of the vehicle body frame 11 extending from below the seat 12 toward the steering shaft 33 is called a main frame 11a. The front knee grip cover 52 covers the portion between the lower edge of the side portion of the fuel tank 13 and the main frame 11a. More specifically, the upper edge portion of the front knee grip cover 52 is formed in a curved shape so as to protrude upward, and is arranged along the lower edge portion of the side portion of the fuel tank 13 . The front knee grip cover 52 may partially overlap the fuel tank 13 . The front part of the lower edge of the front knee grip cover 52 is linear and arranged along the main frame 11a. The front knee grip cover may cover the main frame 11a. The rear portion of the lower edge portion of the front knee grip cover 52 has a curved shape that is concave upward, and is spaced apart from the main frame 11a. This portion may also be covered with a front knee grip cover or the like. The rear edge portion of the main frame 11 a is formed in a shape that slopes downward toward the front, and is arranged along an extension line of the rear edge portion of the side portion of the fuel tank 13 .

The rear knee grip cover 54 extends rearward of the front knee grip cover 52 and covers the area below the lower edge of the rear side of the fuel tank 13 and the lower edge of the front side of the seat 12 . ing. More specifically, the front portion of the upper edge portion of the rear knee grip cover 54 is formed in a shape that faces downward toward the front, and the lower edge portion of the side portion of the rear portion of the fuel tank 13 and the front knee grip cover 54 are shaped so as to extend downward toward the front. It is arranged along the rear edge of the grip cover 52 . The rear portion of the upper edge portion of the rear knee grip cover 54 is formed in a shape that curves downward and is arranged along the lower edge portion of the seat 12 . The lower edge of the rear knee grip cover 54 forms an acute angle with the upper edge of the rear knee grip cover 54, bends downward as it goes forward, and protrudes further downward in the middle. formed into a shape.

The knee grip cover 50 is provided below the seat 12 in the vertical direction. Further, the knee grip cover 50 is provided above the step 26 in the vertical direction. Therefore, when the driver straddles the seat 12 while facing forward, the driver's legs L, particularly the thighs, are likely to come into contact with the knee grip covers 50 . The knee grip cover 50 is provided in a region where the seat 12 is provided or in front of the seat 12 in the front-rear direction. Further, the knee grip cover 50 is provided behind the handle 30 in the front-rear direction.

A traveling wind guide portion 80 is provided in front of the knee grip cover 50 . The running wind guide portion 80 has a running wind guide path 80P that guides the wind from the front of the motorcycle 10 toward the inside of the knee grip cover 50 in the vehicle width direction. Here, a front side cover 60 is provided in front of the knee grip cover 50 . Here, the front side cover 60 is attached to the side portion of the fuel tank 13 while overlapping the front portion of the fuel tank 13 . The front side cover 60 may also be called a tank cover. The front side cover 60 may be made of resin or the like. A traveling wind guide portion 80 is provided inside the front side cover 60 in the vehicle width direction. Here, an example will be described in which the running wind guide portion 80 is provided on one side (right side) of the motorcycle 10 and the same configuration as the running wind guide portion 80 is not provided on the other side (left side).

When the rear frame 11b is a frame extending rearward and obliquely upward from the rear end of the main frame 11a, the area surrounded by the seat 12, the tandem seat 12b, the knee grip cover 50 and the rear frame 11b includes: A rear side cover 42 is provided. The rear side cover 42 may be a single cover, or may be a cover divided into a plurality of parts. The rear side cover 42 may be made of resin or the like. The rear side cover 42 may be omitted. Other covers than those described above may be provided. For example, a cover that covers the sides of the engine 24 or the like may be provided.

A wind guide structure 40 for a straddle-type vehicle according to the present embodiment includes a knee grip cover 50 as an example of the cover described above and a running wind guide portion 80 . A more specific example of the air guide structure 40 will be described. FIG. 2 is a perspective view of the motorcycle 10 viewed obliquely from the front. FIG. 3 is an exploded perspective view of the air guide structure 40. FIG. FIG. 4 is a partial side view of the motorcycle 10. FIG. In FIG. 4, the knee grip cover 50 and the front side cover 60 are indicated by two-dot chain lines. 5 is a partial cross-sectional view taken along line VV of FIG. 4. FIG.

The front side cover 60 has a tank cover portion 62 and an outward projecting portion 64 . The tank cover portion 62 is formed in a shape that spreads so as to cover the front side of the fuel tank 13 . An outward projecting portion 64 is continuously provided at the front portion of the lower portion of the tank cover portion 62 . The outward projecting portion 64 extends downward from the tank cover portion 62 toward the front. The outward projecting portion 64 projects further outward in the vehicle width direction than the tank cover portion 62 . Therefore, the outward projecting portion 64 is formed as a portion that protrudes in front of the knee grip cover 50 so as to protrude outwardly from the knee grip cover 50 in the vehicle width direction. When the motorcycle 10 travels, if the running wind hits the outward projecting portion 64, the running wind is guided outward in the vehicle width direction. Therefore, it is difficult for the driver's foot L, which is in contact with the knee grip cover 50, to be directly exposed to the running wind.

A front inner cover 70 is provided so as to be superimposed on the inner side of the front side cover 60 . The front inner cover 70 may be called a shroud inner. The front inner cover 70 may be made of resin or the like. The upper edge of the front inner cover 70 is arranged along the upper edge of the outward projecting portion 64 . The front portion of the front inner cover 70 extends downward from the upper edge portion of the front inner cover 70 and extends inward in the vehicle width direction from the lower edge portion of the extended portion. For this reason, when viewed from the front, an intake space S that opens at least upward and forward is formed inside the front side cover 60 in the vehicle width direction. An intermediate portion in the front-rear direction of the front inner cover 70 extends downward from a ceiling portion 72a extending inward in the vehicle width direction from the upper edge portion of the front inner cover 70 and an inner edge portion of the ceiling portion 71a. It is formed in a shape having a side wall portion 72b. A partial divided traveling wind guide path 72 is formed inside this portion, the upper side and the inner side in the vehicle width direction being partitioned by the front side inner cover 70 . The divided traveling wind guide path 72 is open toward the space S in front. This opening is the intake port 71 . A plurality of long members may be arranged at intervals in the inlet 71 in order to prevent entry of foreign matter or the like.

The inside and lower portion of the divided traveling wind guide path 72 is open, and a combination cover 76 is provided to close the opening. Combination cover 76 includes a bottom portion 77 and sidewall portions 78 . The combination cover 76 may be made of resin or the like. The bottom portion 77 is shaped like an elongated plate extending along the extending direction of the divided airflow guide path 72 . The side wall portion 78 is erected from the vehicle width direction outer edge portion of the bottom portion 77 toward the divided airflow guide path 72 side (upper side). The inner edge in the vehicle width direction of the bottom portion 77 is arranged along the lower edge of the side wall portion 72b, and the upper edge of the side wall portion 78 is arranged along the outer edge in the vehicle width direction of the ceiling portion 72a. A combined cover 76 is combined with the front side cover 60 below the divided traveling wind guide path 72 so as to be provided. As a result, the split airflow guide path 72 and the combination cover 76 form a cylindrical airflow guide portion 80 that is open at the front and rear. In FIG. 4, the portion forming the running wind guide portion 80 is indicated by a solid line. The front side cover 60 is an example of a side cover that covers the wind guide portion 80 on the outside of the wind guide portion 80 in the vehicle width direction.

A front side guide portion 81 on the front side from the middle portion in the front-rear direction of the traveling wind guide portion 80 extends downward toward the front. It can be said that the front guide portion 81 extends along the extending direction of the outward projecting portion 64 of the front side cover 60 . The front opening of the front guide portion 81 is positioned at the intake port 71, and the running wind F is taken in through the front opening.

A rear guide portion 82 on the rear side of the traveling wind guide portion 80 curves from the rear end portion of the front guide portion 81 and extends downward as it goes rearward. A rear opening of the rear guide portion 82 opens at a front position of the front knee grip cover 52 . The outside of the rear opening of the rear guide portion 82 is covered with the front side cover 60 . Therefore, the running wind coming out of the rear opening of the rear guide portion 82 flows into the front knee grip cover 52 without flowing out to the outside in the vehicle width direction. The rear opening of the rear guide portion 82 may open inside the front knee grip cover 52 . An elongated space in the front guide portion 81 and the rear guide portion 82 is a traveling air guide path 80P.

The traveling wind guide portion 80 includes a compressed portion that narrows in front of the knee grip cover 50 . Here, the rear guide portion 82 is narrower than the front guide portion 81 . More specifically, the space within the rear guide portion 82 is narrower than the space within the front guide portion 81 at least in the vertical direction. The rear guide portion 82 is an example of a compression portion that narrows in front of the knee grip cover 50 . The flow velocity of the wind flowing from the front to the rear in the traveling wind guide portion 80 increases at the rear side guide portion 82 . Then, the wind with increased flow velocity can flow out from the rear opening of the rear guide portion 82 and flow vigorously into the knee grip cover 50 .

In the present embodiment, the running wind guide portion 80 and the knee grip cover 50 are provided on the right side and the left side of the motorcycle 10 where the amount of heat generated by the engine 24 is large.

For example, on one side of the engine 24 (here, on the right side), a cam chain, a drive gear, and the like are incorporated. easy to do. In this case, the right side of the engine 24 generates more heat than the left side of the engine 24 . The engine 24 is an example of a power unit that generates heat differently on the left side than on the right side, and is an example of a power unit that generates more heat on the right side of the engine 24 than on the left side.

The power unit may be an electric motor or the like. Even when the power unit is an electric motor or the like, the amount of heat generated can differ between the left side and the right side due to the asymmetrical arrangement of coils, the asymmetrical layout of cooling channels, and the like.

Assuming such a case, in the present embodiment, the traveling wind guide portion 80 and the knee grip cover 50 are provided on the right side of the motorcycle 10 where a large amount of heat is generated. The running wind guide portion 80 and the knee grip cover 50 may or may not be provided on the side of the motorcycle 10 that generates less heat. An example of a case in which the traveling wind guide portion 80 and the knee grip cover 50 are not provided on the side of the motorcycle 10 that generates less heat will be described later.

In addition, in the present embodiment, an inner guide portion 90 is further provided that spreads apart from the knee grip cover 50 on the inner side in the vehicle width direction. Here, in the case where the inner guide portion 90 spreads apart from the knee grip cover 50 on the inner side in the vehicle width direction, at least a portion of the inner guide portion 90 extends with respect to at least a portion of the knee grip cover 50 . This also includes the case where there is a portion that widens at intervals on the inner side in the vehicle width direction. Therefore, the inner guide portion 90 may be provided in a partial area with respect to the knee grip cover 50 or may protrude from the knee grip cover 50 . Also, a portion of the inner guide portion 90 , for example, a portion of the outer peripheral edge may be in contact with the knee grip cover 50 .

In this embodiment, the inner guide portion 90 spreads inward with respect to the entire front knee grip cover 52 . A front portion of the inner guide portion 90 protrudes forward with respect to the front knee grip cover 52 and extends inward in the vehicle width direction of the rear side opening of the rear side guide portion 82 . Therefore, the wind F flowing out from the rear opening of the rear guide portion 82 flows inside the knee grip cover 50 through between the inner guide portion 90 and the front side cover 60 . Although the material of the inner guide portion 90 is not particularly limited, it may be made of rubber.

The upper edge of the inner guide portion 90 is arranged along the lower edge of the side portion of the fuel tank 13 . At this time, the upper edge of the inner guide portion 90 may contact the lower edge of the side portion of the fuel tank 13 or the upper edge of the front knee grip cover 52 . As a result, the upper opening of the space between the inner guide portion 90 and the front knee grip cover 52 is closed.

A lower edge portion of the inner guide portion 90 is arranged along the main frame 11a. At this time, the lower edge of the inner guide portion 90 may be arranged in contact with the main frame 11 a or in contact with the lower edge of the front knee grip cover 52 . In FIG. 5, the lower edge of the inner guide portion 90 is in contact with the main frame 11a at a position closer to the inside in the vehicle width direction, and the lower edge of the front knee grip cover 52 is closer to the main frame 11a than the main frame 11a. They are in contact at a position on the outer side of the direction. As a result, the lower opening of the space between the inner guide portion 90 and the front knee grip cover 52 is closed.

Therefore, the wind F that has flowed inside the front knee grip cover 52 flows rearward without leaking vertically between the front knee grip cover 52 and the inner guide portion 90 .

In order to more effectively block the upper or lower opening of the space between the inner guide portion 90 and the front knee grip cover 52, an elastic member such as urethane foam may be provided. For example, an elongated foamed resin may be interposed between the lower edge of the inner guide portion 90 or the lower edge of the front knee grip cover 52 and the main frame 11a.

A lower edge portion of the inner guide portion 90 is arranged along the main frame 11a. The lower edge of the inner guide portion 90 may be arranged in contact with the main frame 11 a or in contact with the lower edge of the front knee grip cover 52 . In FIG. 5, the lower edge of the inner guide portion 90 is in contact with the main frame 11a at a position closer to the inside in the vehicle width direction, and the lower edge of the front knee grip cover 52 is closer to the main frame 11a than the main frame 11a. They are in contact at a position on the outer side of the direction. As a result, the lower opening of the space between the inner guide portion 90 and the front knee grip cover 52 is closed.

Therefore, the wind F that has flowed inside the front knee grip cover 52 flows rearward without leaking vertically between the front knee grip cover 52 and the inner guide portion 90 .

At least one of the upper opening and the lower opening may be opened between the front knee grip cover 52 and the inner guide portion 90 .

A rear portion of the inner guide portion 90 protrudes inside the rear knee grip cover 54 . Here, the rear portion of the inner guide portion 90 has an edge that extends downward as it goes rearward away from the lower edge of the side portion of the fuel tank 13, and an edge that extends upward as it goes rearward away from the main frame 11a. It is formed in a shape that is surrounded by an edge that The rear part of the inner guide part 90 spreads over a front partial area of the rear knee grip cover 54 . A gap is formed between the rear edge of the inner guide portion 90 and the rear knee grip cover 54 . Therefore, the wind F flowing between the knee grip cover 50 and the inner guide portion 90 exits the opening on the rear side of the inner guide portion 90 and spreads toward the inside of the knee grip cover 50 in the vehicle width direction. go. This wind F can spread to the inside of the rear knee grip cover 54, the inside of the rear side cover 42, and the like.

The motorcycle 10 may further include a heat insulator provided between the engine 24 and the knee grip cover 50 . Here, the term "between the engine 24 and the knee grip cover 50" means a space in the middle of the space where the heat generated by the engine 24 is transferred to the knee grip cover 50. As shown in FIG. In this embodiment, since the knee grip cover 50 is provided above the engine 24 , the air warmed by the heat generated by the engine 24 rises and flows into the knee grip cover 50 . Here, the inner guide portion 90 is provided between the engine 24 and the knee grip cover 50 provided on the motorcycle 10 in the above sense. As a result, the inner guide portion 90 prevents the air from flowing into the knee grip cover 50 , thereby preventing heat from the engine 24 from being transmitted to the knee grip cover 50 . In this regard, the inner guide portion 90 is an example of a heat insulating portion. If the inner guide portion 90 is made of rubber, it will be more excellent in heat insulation. The engine head of the engine 24 is arranged near the knee grip cover 50, and the inner guide portion 90 can effectively insulate heat from the engine head.

The front knee grip cover 52, the rear knee grip cover 54, the rear side cover 42, the front side cover 60, the front inner cover 70, the combination cover 76, the inner guide portion 90, etc. are screwed, riveted, or engaged. It is directly or indirectly attached to the vehicle body frame 11 using a retaining structure or the like. In FIG. 4 and the like, a portion of the screwing portion B is illustrated.

The knee grip cover 50 and the running wind guide part 80 may be provided on one side of the motorcycle 10, and another running wind guide part 100 may be provided on the other side. For example, as described above, the knee grip cover 50 and the traveling wind guide part 80 are provided on the side of the engine 24 where the amount of heat generated is large (for example, the right side), and on the side where the amount of heat generated is small (for example, the left side). Alternatively, another running wind guide portion 100 may be provided.

FIG. 6 is a diagram showing another example of the running wind guide section 100. As shown in FIG. Here, the running wind guide portion 100 is composed of a front inner cover 170 corresponding to the front inner cover 70 and a front side cover 160 corresponding to the front side cover 60 . Here, the combination cover 76 is omitted. Instead, a component 110 to be cooled is provided inside the inlet 71 . A portion of the front inner cover 170 and the front side cover 160 inside the intake port 71 guides the running wind F from the intake port 71 toward the cooling target component 110 instead of toward the inside of the knee grip cover 50. It is the guide section 100 . The component 110 to be cooled may be a component that easily generates heat, for example, a power supply component such as a regulator that keeps voltage constant. The running wind F that has passed around the parts to be cooled 110 spreads rearward through the inside of the front side cover 160 .

According to the wind guide structure 40 of the motorcycle 10 configured as described above, the running wind F is guided by the running wind guide portion 80 to the inner side of the cover, for example, the knee grip cover 50 in the vehicle width direction. Thereby, the knee grip cover 50 around the seat 12 in the motorcycle 10 is cooled more effectively.

In addition, since the running wind F is guided to the inside of the knee grip cover 50, the knee grip cover 50 is effectively cooled regardless of whether the knee grip cover 50 is in contact with the thigh, knee, or the like.

In addition, since the front inner cover 70 is provided, the running wind F guided from the running wind guide portion 80 to the inside of the knee grip cover 50 spreads between the knee grip cover 50 and the front inner cover 70 and spreads to the knee grip cover. 50 can spread over a wider area. Therefore, the knee grip cover 50 is effectively cooled over a wide area.

In particular, since the space between the knee grip cover 50 and the front inner cover 70 is closed by the upper and lower sides of the front knee grip cover 52, the running wind F spreads over as wide an area of the front knee grip cover 52 as possible and spreads to the front side. To effectively cool a knee grip cover 52. - 特許庁

In addition, since the running wind guide portion 80 and the knee grip cover 50 through which the running wind F is guided are provided on the left and right sides of the engine 24 where the amount of heat generated is large, the knee grip cover 50 on the side where the amount of heat is generated is large. effectively cooled.

On the left and right sides of the motorcycle 10, on the side where the running wind guide part 80 and the knee grip cover 50 for guiding the running wind F are not disposed, another running wind guide part 100 may be provided. As a result, it is possible to provide a configuration in which the knee grip cover 50 is effectively cooled by running wind on one side of the motorcycle 10 and other portions are effectively cooled on the other side.

Further, since the front inner cover 70 is provided between the engine 24 and the knee grip cover 50 as a heat insulating portion, heat from the engine 24 is less likely to be transmitted to the knee grip cover 50 .

That is, the inner guide portion 90 may be grasped as a guide portion for the traveling wind F, may be grasped as a heat insulating portion, or may be regarded as a portion having both the function of guiding the traveling wind F and the heat insulating function. may be grasped. If the inner guide portion 90 has both the function of guiding the running wind F and the function of heat insulation, the cover can be effectively cooled with a simple structure.

Further, the running wind guide portion 80 has a rear side guide portion 82 as a compressing portion. Therefore, the running wind F is compressed in the rear guide portion 82 and vigorously flows toward the inner side of the knee grip cover 50 from the rear opening of the rear guide portion 82 . Therefore, the knee grip cover 50 can be cooled effectively.

A front side cover 60 that covers the airflow guide portion 80 is provided outside the airflow guide portion 80 in the vehicle width direction. The wind directed toward the driver can be controlled by the shape of the outer surface of the front side cover 60 . For example, the wind directed to the driver's thighs and knees can be vented to the outside or up and down in the vehicle width direction. In this case, the wind directed toward the outer surface of the knee grip cover 50 is also reduced, but the knee grip cover 50 is cooled from the inside by the running wind F as described above. Therefore, it is possible to effectively cool the knee grip cover 50 while controlling the wind directed toward the driver by the outer surface shape of the front side cover 60 .

Examples of the running wind guide section 80 are not limited to those described above. For example, the running wind guide portion may guide the running wind flowing along the outer surface side of the front side cover to the inside of the knee grip cover 50 . In the above example, the traveling wind guide part 80 is provided in the same area as the knee grip cover 50 in the vertical direction in front of the knee grip cover 50 . However, the running wind guide portion may be provided in front of the knee grip cover 50 at a position shifted upward or downward with respect to the knee grip cover 50 .

Also, the cover around the seat 12 is not essential to be the knee grip cover 50 . For example, the O cover around the seat 12 is a cover that covers the upper part of the fuel tank 13, a cover that covers a portion near the toes, or the like. good.

It should be noted that the configurations described in the above embodiment and modifications can be appropriately combined as long as they do not contradict each other.

Although the present invention has been described in detail as above, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that numerous variations not illustrated can be envisioned without departing from the scope of the invention.

As described above, this specification includes the following aspects.

A first aspect is a wind guide structure for a straddle-type vehicle, which includes a cover provided around a seat, and a cover provided in front of the cover to direct the wind from the front of the straddle-type vehicle to the cover. and a wind guide portion formed with a wind guide path leading inward in the vehicle width direction.

As a result, the running wind is guided to the inside of the cover in the vehicle width direction by the running wind guide portion. This provides more effective cooling of the cover around the seat in a straddle-type vehicle.

A second aspect is the air guide structure for the saddle-type vehicle according to the first aspect, the saddle-type vehicle further comprising an inner guide portion that spreads apart from the cover inward in the vehicle width direction. It is a wind guide structure in

As a result, the wind guided from the traveling wind guide portion to the inside of the cover spreads between the cover and the inner guide portion. Therefore, the cover is effectively cooled.

A third aspect is a wind guide structure for a straddle-type vehicle according to the first or second aspect, wherein the straddle-type vehicle is provided with a power unit having a left side and a right side having different heat generation amounts, and The traveling wind guide section and the cover are provided on the right side and the left side of the saddle-ride type vehicle where the power unit generates a large amount of heat.

As a result, the cover provided on the side that generates a large amount of heat is effectively cooled.

A fourth aspect is a wind guide structure for a straddle-type vehicle according to any one of the first to third aspects, which is provided between a power unit provided in the straddle-type vehicle and the cover. and a wind guide structure for a saddle-type vehicle, further comprising a thermally insulated portion.

As a result, heat from the power unit is less likely to be transferred to the cover.

A fifth aspect is a wind guide structure for a saddle-ride type vehicle according to any one of the first to fourth aspects, wherein the cover and the running air guide section are arranged on one side of the saddle-ride type vehicle. A wind guide in a saddle-ride type vehicle, wherein another running wind guide part is provided on the other side of the straddle-type vehicle to guide the wind from the front in a direction different from that of the running wind guide part. Structure.

As a result, the cover can be effectively cooled by running wind on one side of the straddle-type vehicle, and other parts can be effectively cooled on the other side.

A sixth aspect is a wind guide structure for a straddle-type vehicle according to any one of the first to fifth aspects, wherein the traveling air guide path includes a compressed portion that narrows in front of the cover. This is a wind guide structure in a straddle-type vehicle.

As a result, the running wind is compressed by the compressing portion and then directed to the inner side of the cover in the vehicle width direction. Therefore, the wind flows vigorously toward the inner side of the cover in the vehicle width direction, enabling more effective cooling.

A seventh aspect is the air guide structure for the straddle-type vehicle according to the second aspect, wherein the inner guide portion is provided between a power unit provided in the straddle-type vehicle and the cover. , a wind guide structure in a straddle-type vehicle.

As a result, the inner guide portion also suppresses the transmission of heat from the power unit to the cover. Therefore, the cover is effectively cooled with a simple structure.

An eighth aspect is the air guide structure for a straddle-type vehicle according to any one of the first to seventh aspects, wherein a side covering the airflow guide portion is positioned outside the airflow guide portion in the vehicle width direction. A wind guide structure for a straddle-type vehicle provided with a cover.

As a result, the cover can be effectively cooled while controlling the wind directed toward the driver by the shape of the outer surface of the side cover.

REFERENCE SIGNS LIST 10 motorcycle 12 seat 24 engine 40 air guide structure 50 knee grip cover 52 front knee grip cover 54 rear knee grip cover 60 front side cover 62 tank cover 64 outward projecting portion 70 front inner cover 71 intake 72 split running Wind guide path 76 Combined cover 80 Wind guide part 80P Wind guide path 81 Front guide part 82 Rear guide part 90 Inner guide part 100 Wind guide part

Claims (7)

A wind guide structure for a straddle-type vehicle,
a cover provided around the seat;
a running wind guide portion provided in front of the cover and formed with a running wind guide path for guiding the wind from the front of the straddle-type vehicle to the vehicle width direction inner side of the cover;
an inner guide portion that spreads at an interval on the inner side in the vehicle width direction with respect to the cover;
with
The opening on the rear side of the inner guide part directs the air flowing between the cover and the inner guide part on the inner side of the cover in the vehicle width direction through the opening on the rear side of the inner guide part to the cover. A wind guide structure in a straddle-type vehicle , which is formed at a position that widens inward in the vehicle width direction . A wind guide structure for a straddle-type vehicle according to claim 1 ,
The straddle-type vehicle is provided with a power unit that generates different amounts of heat on the left side and on the right side,
The wind guide structure for a saddle-ride type vehicle, wherein the traveling wind guide section and the cover are provided on a side of the saddle-ride type vehicle on which a large amount of heat is generated from the power unit, out of the right side and the left side. A wind guide structure for a straddle-type vehicle according to claim 1 or claim 2 ,
A wind guide structure for a straddle-type vehicle, further comprising a heat insulator provided between a power unit provided on the straddle-type vehicle and the cover. A wind guide structure for a straddle-type vehicle according to any one of claims 1 to 3,
the cover and the running wind guide section are provided on one side of the straddle-type vehicle,
A wind guide structure for a saddle-ride type vehicle, wherein another running wind guide section is provided on the other side of the saddle-ride type vehicle to guide the wind from the front in a direction different from that of the running wind guide section. A wind guide structure for a straddle-type vehicle according to any one of claims 1 to 4,
The wind guide structure for a straddle-type vehicle, wherein the running wind guide path includes a compressed portion that narrows in front of the cover. A wind guide structure for a straddle-type vehicle according to any one of claims 1 to 5 ,
The wind guide structure for a saddle-ride type vehicle, wherein the inner guide portion is provided between a power unit provided on the saddle-ride type vehicle and the cover. A wind guide structure for a straddle-type vehicle according to any one of claims 1 to 6 ,
A wind guide structure for a straddle-type vehicle, wherein a side cover is provided outside the wind guide portion in the vehicle width direction to cover the wind guide portion.

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