JP7454532B2 - saddle type vehicle - Google Patents

Description

The present invention relates to a straddle-type vehicle.

2. Description of the Related Art Conventionally, in saddle-type vehicles, a structure for making it difficult for hot air to accumulate inside a side cover is known. For example, Patent Document 1 discloses a structure in which the lower part of the seat is covered with a side cover and a ventilation hole is provided in the side cover. The downwardly extending portion of the side cover partially covers the outside of the exhaust pipe. For example, when the vehicle is stopped, hot air from the exhaust pipe becomes hot due to a catalyst or the like and enters the inside of the side cover, but is exhausted to the outside through the vent.

Japanese Patent Application Publication No. 2015-58921

By the way, it is desired to suppress the retention of wind from the vehicle inside the vehicle body cover.

SUMMARY OF THE INVENTION An object of the present invention is to prevent wind from accumulating inside a vehicle body cover.

As a means for solving the above problems, aspects of the present invention have the following configurations.
(1) The straddle-type vehicle according to an aspect of the present invention has an inclined surface (50) that is inclined to be located inward in the vehicle width direction toward the front of the vehicle, and has an upper that covers the side surface of the vehicle and the upper front part of the vehicle body. The upper cowl (41) has an opening (60) that opens the inclined surface (50) in the vehicle width direction, and the upper cowl (41) has an opening (60) that opens the inclined surface (50) in the vehicle width direction. ) , and the inclined surface (50) of the upper cowl (41) is inclined downward toward the front of the vehicle and is located outward in the vehicle width direction as it goes downward. A lower inclined part (52) is provided along a lower edge (51a) of the upper inclined part (51) and inclined inward in the vehicle width direction from the lower edge (51a) toward the lower side of the vehicle, and the lower inclined part (52) is spaced apart from a pair of side cowls (42) extending below and rearward of the upper cowl (41) and covering the front side of the vehicle, and is located at the lower edge (51a) of the inclined surface (50) when viewed from the side of the vehicle. extends parallel to the upper edge (42a) of the side cowl (42), and the opening (60) is provided in the downward slope (52) of the upper cowl (41).

(2) In the straddle-type vehicle described in (1) above, the opening (60) may be located further forward of the vehicle than the pivot plate (24).

(3) In the straddle-type vehicle according to (1) or (2) above, the inclined surface (50) is inclined downwardly toward the front of the vehicle so as to be located on the lower side of the vehicle, and the opening (60) may be open toward the top of the vehicle.

(4) In the straddle-type vehicle according to any one of (1) to (3) above, the opening (60) may extend in the longitudinal direction of the vehicle.

(5) In the straddle-type vehicle according to any one of (1) to (4) above, the inclined surface (50) is inclined downward toward the front so as to be located on the lower side of the vehicle toward the front of the vehicle. However, the opening (60) may extend along the slope of the slope (50).

(6) In the straddle-type vehicle according to any one of (1) to (5) above , the body cover (40) includes the upper cowl (41) and a side connecting to the upper cowl (41). A cowl (42) , and the opening (60) may be provided at a joint (54) between the upper cowl (41) and the side cowl (42) .

( 7 ) In the straddle-type vehicle according to any one of (1) to ( 6 ) above, the upper cowl (41) is located further in the vehicle width direction than the outer end of the inclined surface (50) in the vehicle width direction. It may have a step (65) on the inside, and the opening (60) may be provided in the step (65).

According to the straddle-type vehicle according to the above (1) of the present invention, the straddle-type vehicle has an inclined surface that is inclined to be located inward in the vehicle width direction toward the front of the vehicle, and includes an upper cowl that covers a side surface of the vehicle. The cowl has the following effects by having an opening that opens the inclined surface in the vehicle width direction.
Wind from the front of the vehicle can be directed outward in the vehicle width direction along the slope. Thereby, the running wind that has flowed into the inside of the cowl can flow outward in the vehicle width direction through the opening, along with the flow of the running wind along the inclined surface. Therefore, it is possible to prevent the traveling wind from staying inside the cowl .

According to the straddle-type vehicle described in the above (2) of the present invention, the opening is disposed further forward of the vehicle than the pivot plate, thereby achieving the following effects.
Compared to the case where the opening is located at the rear of the vehicle than the pivot plate, the opening is located at a location where the flow of wind from the front of the vehicle is strong (where the flow velocity is high). Therefore, the wind flowing into the inside of the vehicle body cover can be drawn in by the force of the flow of wind along the slope, and can be forced to flow outward in the vehicle width direction through the opening. Therefore, it is possible to more effectively prevent the wind from accumulating inside the vehicle body cover.

According to the straddle-type vehicle according to the above (3) of the present invention, the inclined surface is inclined downwardly toward the front of the vehicle so as to be located on the lower side of the vehicle, and the opening is inclined toward the upper side of the vehicle. Being open provides the following effects.
Air force that presses a running vehicle against the ground, so-called downforce, is applied to the slope, making it possible to stabilize the running of the vehicle. In addition, the flow of wind from the front of the vehicle toward the upper rear of the vehicle along the slope causes the wind that has flowed into the inside of the vehicle body cover to be forcefully drawn in and forcefully flowed outward in the vehicle width direction through the opening. can. Therefore, while the running of the vehicle is stabilized, it is possible to more effectively suppress the wind from accumulating inside the vehicle body cover.

According to the straddle-type vehicle described in the above (4) of the present invention, the opening extends in the longitudinal direction of the vehicle, thereby achieving the following effects.
Compared to the case where the opening extends in the vertical direction of the vehicle, wind from the front of the vehicle can be prevented from flowing into the inside of the vehicle body cover through the opening. In addition, the opening can be made more compact in the vehicle width direction compared to a case where the opening extends in the vehicle width direction.

According to the straddle-type vehicle according to the above (5) of the present invention, the inclined surface is inclined forwardly and downwardly toward the front of the vehicle so as to be located on the lower side of the vehicle, and the opening portion is arranged on the slope of the inclined surface. By extending along the line, the following effects are achieved.
Air force that presses a running vehicle against the ground, so-called downforce, is applied to the slope, making it possible to stabilize the running of the vehicle. In addition, the flow of wind from the front of the vehicle toward the upper rear of the vehicle along the slope causes the wind that has flowed into the inside of the vehicle body cover to be forcefully drawn in and forcefully flowed outward in the vehicle width direction through the opening. can. In addition, the running wind that has flowed into the inside of the vehicle body cover can flow upwardly rearward and outward in the vehicle width direction through the longitudinal portion of the opening. Therefore, while the running of the vehicle is stabilized, it is possible to more effectively suppress the wind from accumulating inside the vehicle body cover.

According to the saddle type vehicle according to the above (6) of the present invention, the vehicle body cover includes an upper cowl and a side cowl connected to the upper cowl , and the opening is located at the joint between the upper cowl and the side cowl . By being provided, the following effects are achieved.
Compared to the case where the opening is provided in the cowl main body, the influence on the cowl 's original function of repelling running wind outward can be reduced. In addition, since the opening is less noticeable, the impact on the design can be reduced.

According to the straddle-type vehicle described in ( 1 ) above of the present invention, the upper cowl has the wall portion that partitions the opening, thereby achieving the following effects.
Since the wall portion can block the running wind, it is possible to suppress the running wind from flowing into the inside of the cowl .

According to the straddle-type vehicle according to the above ( 7 ) of the present invention, the upper cowl has a stepped portion on the inner side in the vehicle width direction than the outer end of the inclined surface in the vehicle width direction, and the opening portion is formed in the stepped portion. By being provided, the following effects are achieved.
Since the stepped portion can block the running wind, it is possible to suppress the running wind from flowing into the inside of the cowl .

FIG. 1 is a left side view of a motorcycle according to an embodiment. FIG. 2 is a left side view of the front upper part of the motorcycle according to the embodiment. 3 is a front view including a cross section taken along III-III in FIG. 2. FIG. FIG. 2 is a perspective view of the opening according to the embodiment viewed from the upper left front. FIG. 5 is a perspective view showing a state in which the side cowl in FIG. 4 is removed. FIG. 3 is a perspective view for explaining an example of the flow of wind when traveling.

Embodiments of the present invention will be described below with reference to the drawings. Note that the directions such as front, rear, left, and right in the following description are the same as the directions of the vehicle described below unless otherwise specified. In addition, arrow FR indicating the front of the vehicle, arrow LH indicating the left side of the vehicle, arrow UP indicating the top of the vehicle, and vehicle body left-right center line CL indicating the left-right center position of the vehicle are shown at appropriate locations in the drawings used in the following explanation. There is.

<Entire vehicle>
FIG. 1 shows a motorcycle 1 as an example of a straddle-type vehicle. Referring to FIG. 1, a motorcycle 1 includes a front wheel 3 (steering wheel) steered by a bar-type handle 2, and a rear wheel 4 (driving wheel) driven by a power unit 10 including an engine 11 (drive device). ) and. Hereinafter, a motorcycle may be simply referred to as a "vehicle".

Steering system components including the handle 2 and the front wheels 3 are supported by a head pipe 21 on the front end side of the vehicle body frame 20 so as to be steerable. The front wheel 3 is supported by the lower ends of the left and right front forks 5. The upper portions of the left and right front forks 5 are supported by a head pipe 21 via a steering stem 6. A handle 2 is attached to the upper part of the steering stem 6.

The vehicle body frame 20 is the skeleton of the vehicle. For example, the vehicle body frame 20 is formed by joining together multiple types of steel materials by welding or the like. The vehicle body frame 20 includes a head pipe 21, a main frame 22, a down frame 23, a pivot plate 24, a seat rail 25, and a subframe 26.

The head pipe 21 is formed into a cylindrical shape through which the shaft portion of the steering stem 6 can be inserted. The head pipe 21 is inclined so that the upper end of the head pipe 21 is located at the rear and the lower end of the head pipe 21 is located at the front when viewed from the side of the vehicle.

A pair of left and right main frames 22 are provided. The main frame 22 connects the head pipe 21 and the pivot plate 24. The main frame 22 extends diagonally rearward and downward from the head pipe 21 when viewed from the side of the vehicle.

A pair of down frames 23 are provided on the left and right sides. The down frame 23 extends diagonally rearward and downward at a steeper slope than the main frame 22 from a position below the connection portion with the main frame 22 on the head pipe 21 when viewed from the side of the vehicle. The down frame 23 gradually moves away from the main frame 22 as it goes downward from the head pipe 21 in a side view of the vehicle.

A pair of left and right pivot plates 24 are provided so as to extend downward from the rear lower part of the main frame 22. The pivot plate 24 extends downward from the lower end of the main frame 22 in a side view of the vehicle, and then curves and extends forward and downward.

A pair of left and right seat rails 25 are provided so as to extend rearward and upward from the rear upper part of the main frame 22. The seat rail 25 is inclined so that the front end of the seat rail 25 is located below and the rear end of the seat rail 25 is located above when viewed from the side of the vehicle.

A pair of left and right subframes 26 are provided so as to extend rearward and upward from the upper rear end of the pivot plate 24 . The subframe 26 connects the pivot plate 24 and the rear part of the seat rail 25. The subframe 26 extends diagonally rearward and upward from the upper rear end of the pivot plate 24 at a steeper inclination than the seat rail 25 when viewed from the side of the vehicle.

The engine 11 is arranged below the main frame 22. Engine 11 is a power source for the vehicle. The engine 11 includes a crankshaft 15 parallel to the vehicle width direction. For example, engine 11 is a single cylinder engine. The engine 11 includes a crankcase 16 that accommodates a crankshaft 15, and a cylinder 17 that stands diagonally forward and upward from the top of the crankcase 16. The cylinder 17 is integrally connected to the upper part of the crankcase 16.

The transmission 12 is provided at the rear of the crankcase 16. The rear part of the crankcase 16 also serves as a transmission case that houses a clutch and a transmission. The transmission 12 includes an output shaft (not shown) for extracting the power of the engine 11 to the outside.

The power unit 10 is arranged at the front and rear center of the vehicle body frame 20. A front portion of the power unit 10 is supported by a down frame 23 via an engine hanger (not shown). The rear part of the power unit 10 is supported by left and right pivot plates 24. A front end portion of a swing arm 36 is swingably supported by the left and right pivot plates 24 . The axle of the rear wheel 4 is supported at the rear of the swing arm 36. The output shaft of the transmission 12 and the axle of the rear wheels 4 are connected via a power transmission mechanism (not shown, for example, a chain-type transmission mechanism) including a drive chain or the like. A rear suspension (not shown) is interposed between the front part of the swing arm 36 and the vehicle body frame 20.

A fuel tank 7 is arranged above the cylinder 17. The fuel tank 7 is provided so as to cover the main frame 22 from above. A seat 8 for a passenger to sit on is arranged on the seat rail 25 behind the fuel tank 7. The seat 8 extends in the front-rear direction. The front part of the seat 8 is supported by the rear upper surface of the fuel tank 7. The seat 8 separately includes a front seat 8a on which a driver is seated, and a rear seat 8b on which a fellow passenger is seated. The pivot plate 24 is provided with a main step 31 on which the driver places his/her feet. The subframe 26 is provided with a pillion step 32 on which a fellow passenger rests his or her feet.

The periphery of the body frame 20 is covered by a body cover 40 made of, for example, synthetic resin. The body cover 40 includes an upper cowl 41 (first cover portion) that covers the upper side of the front of the body, a pair of left and right side cowls 42 (second cover portions) that are connected to the lower rear of the left and right sides of the upper cowl 41 and cover both the left and right sides of the front of the body, a lower cowl 43 that covers the lower side of the front of the body, a pair of left and right side covers 44 that are connected to the rear of the left and right side cowls 42 and cover the sides of the body, and a rear cowl 45 that is connected to the rear of the left and right side covers 44 and covers the upper side of the rear of the body. A pair of left and right front turn signals 47 are provided on the upper cowl 41.

<Opening structure in front of side cover>
As shown in FIG. 2, the upper cowl 41 constitutes the front upper part of the vehicle body cover 40. As shown in FIG. As shown in FIG. 3, the vehicle body cover 40 has a symmetrical shape with the vehicle body left-right center line CL as an axis of symmetry. The configuration of the left side of the vehicle body cover 40 will be described in detail below. Note that the configuration on the right side of the vehicle body cover 40 is the same as the configuration on the left side, so a detailed explanation will be omitted.

As shown in FIG. 4, the upper cowl 41 has an inclined surface 50 that is inclined toward the inside in the vehicle width direction toward the front of the vehicle. The inclined surface 50 corresponds to a portion of the outer surface of the upper cowl 41 in the vehicle width direction that is inclined toward the inner side in the vehicle width direction toward the front of the vehicle. The upper cowl 41 has an opening 60 that opens the inclined surface 50 in the vehicle width direction.

As shown in FIG. 1, the opening 60 is located forward of the pivot plate 24. The opening 60 is located further forward than the head pipe 21. The opening 60 is arranged below the front blinker 47.

As shown in FIG. 4, the inclined surface 50 has an upper inclined part 51 that forms the exterior appearance of the vehicle, and a lower inclined part 52 that continues below the upper inclined part 51. A front blinker 47 is provided on the upper inclined portion 51. The upper inclined portion 51 is inclined so as to be located on the inside in the vehicle width direction as it goes toward the front of the vehicle, and is tilted so as to be located on the bottom side of the vehicle as it goes outward in the vehicle width direction. In the cross-sectional view of FIG. 3, the upper inclined portion 51 is curved toward the inside in the vehicle width direction. In a side view of the vehicle in FIG. 2, the lower edge 51a of the upper inclined portion 51 is inclined downward toward the front so as to be located on the lower side of the vehicle toward the front of the vehicle.

As shown in FIG. 4, the lower inclined portion 52 is inclined so as to be positioned inward in the vehicle width direction toward the front of the vehicle, and extends from the lower edge 51a of the upper inclined portion 51 toward the lower side of the vehicle. In the cross-sectional view of FIG. 3, the lower inclined part 52 extends from the lower edge 51a of the upper inclined part 51 so as to be located inward in the vehicle width direction as it goes downwards in the vehicle, and then extends in the vehicle width direction as it goes downwards in the vehicle. It extends obliquely so as to be positioned outward in the direction of the direction. As shown in FIG. 4, the lower inclined portion 52 extends along the lower edge 51a of the upper inclined portion 51. As shown in FIG. An opening 60 is provided in the downwardly inclined portion 52 .

The upper cowl 41 has a pair of front and rear overlapping parts 71 and 72 that overlap the front upper part of the side cowl 42. The pair of front and rear overlapping parts 71 and 72 include a first overlapping part 71 disposed below the front blinker 47 and a second double folding part 72 disposed behind the front blinker 47. The first overlapping part 71 extends downward from the front part of the downward slope part 52. The second double bend portion 72 extends rearward from the rear portion of the downward slope portion 52.

The front upper part of the side cowl 42 is provided with a pair of front and rear claws (not shown) that protrude inward in the vehicle width direction. The first overlapping portion 71 has a first engagement hole 73 for engaging one of the pair of front and rear claw portions (first claw portion). The second double portion 72 has a second engagement hole 74 for engaging the other (second claw) of the pair of front and rear claws. For example, the front upper part of the side cowl 42 can be attached to each of the overlapping parts 71, 72 of the upper cowl 41 by engaging the pair of front and rear claws in the respective engagement holes 73, 74.

Hereinafter, the state in which the side cowl 42 is attached to the upper cowl 41 (in other words, the state in which the upper cowl 41 and the side cowl 42 are attached to the vehicle body) is also referred to as a "cowl attached state." In the cowl attached state, the overlapping portions 71 and 72 of the upper cowl 41 are covered from the outside in the vehicle width direction by the side cowl 42, and therefore are not visible from the outside.

As shown in FIG. 5, the first overlapped portion 71 may be provided with a hollowed-out portion 75 for weight reduction. In the example of FIG. 5, the lightened portion 75 is a through hole that opens the first overlapping portion 71 in the vehicle width direction. For example, the hollowed out portions 75 may be provided as a pair of upper and lower portions with the first engagement hole 73 in between. For example, the hollowed-out portion 75 may have a triangular shape with rounded corners when viewed from the vehicle width direction. Note that the installation location, number, shape, etc. of the hollowed out portions 75 can be changed depending on required specifications.

As shown in FIG. 4, the upper cowl 41 has a protrusion 53 that protrudes so as to come into contact with a portion near the upper end of the side cowl 42. As shown in FIG. The protruding portion 53 is provided at the rear end portion of the upper inclined portion 51.

In a side view of the vehicle in FIG. 2, the upper edge 42a of the side cowl 42 is inclined downwardly toward the front of the vehicle so as to be located on the lower side of the vehicle. The upper edge 42a of the side cowl 42 extends substantially parallel to the lower edge 51a of the upper inclined portion 51 of the upper cowl 41 (the portion other than the protruding portion 53 shown in FIG. 4).

As shown in FIG. 3, in the cowl attached state, the portion of the upper cowl 41 between the lower edge 51a of the upper inclined portion 51 (a portion other than the protruding portion 53 shown in FIG. 4) and the upper edge 42a of the side cowl 42 is , exposed above the vehicle. In the cowl attached state, at least a portion of the downwardly inclined portion 52 is exposed above the vehicle. In the cowl attached state, the lower inclined portion 52 is spaced apart from the side cowl 42.

As shown in FIG. 4, the opening 60 provided in the downward slope 52 opens upwardly of the vehicle. In a side view of the vehicle in FIG. 2, the upper edge 42a of the side cowl 42 overlaps a part (lower part) of the opening 60. In the cowl attached state, a part (lower part) of the opening 60 is covered by the front upper part of the side cowl 42 from the outside in the vehicle width direction.

As shown in FIG. 4, the opening 60 extends in the vehicle longitudinal direction. The inclined surface 50 is inclined downward toward the front so as to be located on the lower side of the vehicle toward the front of the vehicle. The opening 60 extends along the slope of the slope 50. A lower inclined portion 52 constituting the inclined surface 50 extends downward from the front of the protruding portion 53 .

In the cowl attached state, the upper cowl 41 is connected to the side cowl 42 through the overlapping portions 71 and 72, the protruding portion 53, and the like. The opening 60 is provided at the joint 54 between the upper cowl 41 and the side cowl 42. Here, the joint 54 corresponds to a portion that connects the upper inclined portion 51 of the upper cowl 41 and the front upper part of the side cowl 42. That is, the opening 60 is provided in the lower inclined part 52 which is the part connecting the upper inclined part 51 of the upper cowl 41 and the front upper part of the side cowl 42. The downwardly inclined portion 52 functions as a joint 54.

As shown in FIG. 5, the upper cowl 41 has a wall 55 that partitions the opening 60. As shown in FIG. The wall portion 55 is provided on the downward slope portion 52. The wall portion 55 includes a first side wall 56 provided at the front of the downwardly inclined portion 52 and a second side wall 57 provided at the rear of the first side wall 56. The first side wall 56 connects the front part of the upper inclined part 51 and the front part of the first overlapping part 71. The second side wall 57 connects the rear part of the upper inclined part 51 and the rear part of the first overlapping part 71.

The opening 60 is divided into a first opening 61 located in front of the second side wall 57 and a second opening 62 located in the rear of the second side wall 57. In other words, the downward slope portion 52 is provided with a plurality of openings (for example, two in this embodiment).

The first opening 61 has an elongated hole shape that slopes forward and downward at a portion of the lower inclined portion 52 that is sandwiched between the front blinker 47 and the first overlapping portion 71 in the vertical direction. In a side view of the vehicle in FIG. 2, the length of the first opening 61 in the longitudinal direction is longer than the longitudinal length of the front blinker 47.

As shown in FIG. 5, the second opening 62 has an elongated hole shape in which a portion of the downwardly inclined portion 52 sandwiched between the second side wall 57 and the protruding portion 53 from the front and rear directions is inclined downwardly toward the front. In the vehicle side view of FIG. 2, the length of the second opening 62 in the longitudinal direction is longer than the length of the first opening 61 in the longitudinal direction. Note that the length in the longitudinal direction of each opening 61, 62 is not limited to the above, and can be changed according to required specifications.

As shown in FIG. 5, the upper cowl 41 has a stepped portion 65 on the inner side in the vehicle width direction than the outer end of the inclined surface 50 in the vehicle width direction. Here, the outer end of the inclined surface 50 in the vehicle width direction means a portion of the upper cowl 41 located furthest outward in the vehicle width direction. The outer end of the upper cowl 41 in the vehicle width direction corresponds to the outer end of the protrusion 53 in the vehicle width direction. That is, the upper cowl 41 has a stepped portion 65 on the inner side in the vehicle width direction than the outer end of the protruding portion 53 in the vehicle width direction. The opening 60 is provided in the step 65. Specifically, the opening 60 is provided in a stepped portion 65 of the upper cowl 41 at a portion lower than the vehicle and one step lower in the vehicle width direction with respect to the upwardly inclined portion 51.

<Flow of driving wind>
FIG. 6 is a perspective view for explaining an example of the flow of the traveling wind.
In the example of FIG. 6, an inlet 59 through which the traveling wind flows is provided between the front lower part of the upper cowl 41 and the front upper part of the side cowl 42. The opening 60 of this embodiment is provided further rearward of the vehicle than the inlet 59.

For example, when the vehicle is running, a portion of the wind from the front of the vehicle is deflected outward by the upper cowl 41, side cowl 42, etc. (for example, in the direction of arrow W1). On the other hand, the wind from the front of the vehicle that is not deflected outward by the upper cowl 41, side cowl 42, etc., flows through the inlet 59 to the inside of the upper cowl 41 and side cowl 42 (hereinafter also referred to as "cowl inside"). ) (for example, in the direction of arrow W2).

The opening 60 of this embodiment opens in the vehicle width direction the inclined surface 50 that is inclined to be located inward in the vehicle width direction as it goes toward the front of the vehicle. Therefore, the running wind that has entered the inside of the cowl flows out through the opening 60 to the outside in the vehicle width direction (for example, in the direction of arrow W3).

The inclined surface 50 is inclined forward and downward toward the front of the vehicle so as to be located on the lower side of the vehicle, so that the wind blows in the direction of arrow W4 from the front of the vehicle to the upper rear of the vehicle along the inclined surface 50. You can create a flow. For example, due to the flow of running wind in the direction of arrow W4, the running wind that has flowed into the inside of the cowl is forcefully drawn in the direction of arrow W4. As a result, the running wind that has flowed into the inside of the cowl flows out with force to the outside (for example, in the direction of arrow W4) through the opening 60.

Since the opening 60 extends along the slope of the inclined surface 50, the running wind flowing into the inside of the cowl is directed rearward upward and outward in the vehicle width direction (for example, in the direction of arrow W4) through the longitudinal portion of the opening 60. leaks to. That is, a portion of the traveling wind that has flowed into the inside of the cowl flows out along the longitudinal portion of the opening 60 without staying inside the cowl.

<Effect>
As described above, the motorcycle 1 of the above embodiment has an inclined surface 50 that is inclined so as to be located inward in the vehicle width direction toward the front of the vehicle, and an upper cowl 41 that covers the side surface of the vehicle. 41 has an opening 60 that opens the inclined surface 50 in the vehicle width direction.
According to this configuration, the running wind from the front of the vehicle can flow outward in the vehicle width direction along the inclined surface 50. Thereby, the running wind that has flowed into the inside of the cowl can flow outward in the vehicle width direction through the opening 60 along with the flow of the running wind along the inclined surface 50. Therefore, it is possible to suppress the travel wind from staying inside the cowl.

In the embodiment described above, the opening 60 is located further forward of the vehicle than the pivot plate 24.
According to this configuration, compared to the case where the opening 60 is arranged at the rear of the vehicle than the pivot plate 24, the opening 60 is located at a location where the flow of wind from the front of the vehicle is strong (a location where the flow velocity is high). ). Therefore, the running wind flowing into the inside of the cowl can be drawn in by the force of the flow of the running wind along the inclined surface 50, and can be forcefully flowed outward in the vehicle width direction through the opening 60. Therefore, it is possible to more effectively prevent the wind from accumulating inside the cowl.

In the embodiment described above, the inclined surface 50 is inclined downward toward the front of the vehicle so as to be located on the lower side of the vehicle, and the opening 60 is opened toward the upper side of the vehicle.
According to this configuration, air force that presses the running vehicle against the ground, so-called downforce, is applied to the inclined surface 50, so that the running of the vehicle can be stabilized. In addition, the flow of wind from the front of the vehicle toward the upper rear of the vehicle along the slope 50 causes the wind that has flowed into the inside of the cowl to be forcefully drawn in and flowed outward in the width direction of the vehicle through the opening 60. I can do it. Therefore, while the running of the vehicle is stabilized, it is possible to more effectively suppress the wind from accumulating inside the cowl.

In the embodiment described above, the opening 60 extends in the vehicle longitudinal direction.
According to this configuration, compared to a case where the opening 60 extends in the vertical direction of the vehicle, it is possible to suppress the running wind from the front of the vehicle from flowing into the inside of the cowl through the opening 60. In addition, compared to a case where the opening 60 extends in the vehicle width direction, it can be made more compact in the vehicle width direction.

In the embodiment described above, the inclined surface 50 is inclined downward toward the front of the vehicle so as to be located on the lower side of the vehicle, and the opening 60 extends along the slope of the inclined surface 50.
According to this configuration, air force that presses the running vehicle against the ground, so-called downforce, is applied to the inclined surface 50, so that the running of the vehicle can be stabilized. In addition, the flow of wind from the front of the vehicle toward the upper rear of the vehicle along the inclined surface 50 causes the wind that has flowed into the inside of the cowl to be forcefully drawn in and flowed outward in the width direction of the vehicle through the opening 60. I can do it. In addition, the running wind that has flowed into the inside of the cowl can flow upwardly rearward and outward in the vehicle width direction through the longitudinal portion of the opening 60. Therefore, while the running of the vehicle is stabilized, it is possible to more effectively suppress the wind from accumulating inside the cowl.

In the embodiment described above, the vehicle body cover 40 includes an upper cowl 41 and a side cowl 42 connected to the upper cowl 41, and the opening 60 is provided at the joint 54 between the upper cowl 41 and the side cowl 42.
According to this configuration, compared to the case where the opening 60 is provided in the cowl main body, the influence on the cowl's original function of repelling running wind to the outside can be reduced. In addition, since the opening 60 is less noticeable, the influence on the design can be reduced.

In the embodiment described above, the upper cowl 41 has a wall portion 55 that partitions the opening portion 60.
According to this configuration, since the wall portion 55 can block the running wind, it is possible to suppress the running wind from flowing into the inside of the cowl.

In the embodiment described above, the upper cowl 41 has a stepped portion 65 on the inner side in the vehicle width direction than the outer end of the inclined surface 50 in the vehicle width direction, and the opening 60 is provided in the stepped portion 65 .
According to this configuration, since the stepped portion 65 can block the running wind, it is possible to suppress the running wind from flowing into the inside of the cowl.

<Modified example>
In addition, in the above-mentioned embodiment, the upper cowl has an inclined surface that is inclined to be positioned inward in the vehicle width direction toward the front of the vehicle, and covers the side surface of the vehicle, and the upper cowl has an inclined surface that is opened in the vehicle width direction. Although the explanation has been given using an example having an opening for opening, the present invention is not limited thereto. For example, the inclined surface may be provided in a portion of the vehicle body cover other than the upper cowl. For example, the opening may be an inclined surface provided in a portion of the vehicle body cover other than the upper cowl that opens in the vehicle width direction. For example, a motorcycle has a slope that slopes toward the front of the vehicle so as to be positioned inward in the vehicle width direction, and includes a body cover that covers the side of the vehicle, and the body cover has the slope opening in the vehicle width direction. It may have an opening. For example, the manner in which the inclined surface and the opening are installed can be changed depending on the required specifications.

In the above embodiment, an example has been described in which the opening is disposed further forward of the vehicle than the pivot plate, but the opening is not limited thereto. For example, the opening may be located further rearward of the vehicle than the pivot plate. For example, the arrangement of the opening in the longitudinal direction of the vehicle with respect to the pivot plate can be changed depending on required specifications.

In the above embodiment, an example has been described in which the slope slopes downward toward the front so as to be located on the lower side of the vehicle toward the front of the vehicle, but the present invention is not limited thereto. For example, the inclined surface may be inclined upward toward the front of the vehicle so as to be located on the upper side of the vehicle. For example, the inclined surface may extend in the longitudinal direction of the vehicle and may be inclined outward in the vehicle width direction so as to be located on the lower side or the upper side of the vehicle. For example, the inclination aspect of the inclined surface can be changed according to required specifications.

Although the above embodiment has been described using an example in which the opening extends in the longitudinal direction of the vehicle, the opening is not limited thereto. For example, the opening may extend in the vehicle vertical direction. For example, the opening may extend in the vehicle width direction. For example, the manner in which the opening extends can be changed depending on required specifications.

In the embodiment described above, the opening has been described using an example in which the opening extends along the slope of the slope, but the opening is not limited to this. For example, the opening does not need to extend along the slope of the slope. For example, the opening need not be in the shape of a long hole. For example, the opening may be circular. For example, the shape of the opening can be changed depending on required specifications.

In the above embodiment, the vehicle body cover includes an upper cowl and a side cowl connected to the upper cowl, and the opening is provided at the joint between the upper cowl and the side cowl. Not limited to. For example, the opening may be provided in the upper cowl itself. For example, the opening may be provided in the side cowl itself. For example, the vehicle body cover may include a side cowl and a lower cowl connected to the side cowl, and the opening may be provided at a joint between the side cowl and the lower cowl. For example, the vehicle body cover may include a side cowl and a side cover connected to the side cowl, and the opening may be provided at a joint between the side cowl and the side cover. For example, the vehicle body cover may include a side cover and a rear cowl connected to the side cover, and the opening may be provided at a joint between the side cover and the rear cowl. For example, the vehicle body cover may include a first cover part and a second cover part connected to the first cover part, and the opening may be provided at a joint between the first cover part and the second cover part. . For example, the manner in which the openings are installed can be changed depending on the required specifications.

In the above embodiment, the upper cowl has been described as having a wall portion that partitions the opening, but the present invention is not limited thereto. For example, the upper cowl does not need to have a wall that partitions the opening. For example, the wall portion that partitions the opening may be provided in a portion of the vehicle body cover other than the upper cowl. For example, the opening may not be divided into multiple openings. For example, only one opening may be provided. For example, the manner in which the walls are installed and the number of openings installed can be changed depending on the required specifications.

In the above embodiment, the upper cowl has a stepped portion on the inner side in the vehicle width direction than the outer end of the inclined surface in the vehicle width direction, and the opening is provided in the stepped portion. Not limited to. For example, the upper cowl does not need to have a stepped portion on the inner side in the vehicle width direction than the outer end of the inclined surface in the vehicle width direction. For example, the stepped portion may be provided in a portion of the vehicle body cover other than the upper cowl. For example, the opening may not be provided at the step. For example, the opening may be provided in a portion of the vehicle body cover other than the stepped portion. For example, the manner in which the stepped portion is installed and the manner in which the opening is installed can be changed depending on the required specifications.

Although the above embodiment has been described using an example in which the engine is a single-cylinder engine, the present invention is not limited to this. For example, the engine may be a multi-cylinder engine. For example, the aspect of the engine can be changed depending on the required specifications.

Although the above embodiment has been described using an engine as an example of the drive device, the present invention is not limited to this. For example, the drive device may be a device other than an engine (internal combustion engine), such as an electric motor. For example, the drive device may be a prime mover such as an electric motor, a heat engine, or a fluid machine, or a device that combines at least two of the prime movers. For example, the aspect of the drive device can be changed depending on required specifications.

In the embodiment described above, a motorcycle with an engine mounted on the body side has been described as an example of a straddle-type vehicle, but the present invention is not limited to this. For example, the saddle type vehicle may be a unit swing type motorcycle. For example, the aspect of the straddle-type vehicle can be changed depending on required specifications.

Note that the present invention is not limited to the above-described embodiments, and may be applied to straddle-type vehicles other than motorcycles. For example, the straddle-type vehicle includes all vehicles in which the driver rides astride the body of the vehicle, and includes not only motorcycles (including motorized bicycles and scooter-type vehicles) but also three-wheeled vehicles (one front wheel and two rear wheels). In addition, vehicles with two wheels in the front and one wheel in the rear are also included. Further, the present invention is applicable not only to motorcycles but also to four-wheeled vehicles such as automobiles (four-wheeled buggies, etc.).
The configuration in the embodiment described above is an example of the present invention, and various changes can be made without departing from the gist of the present invention, such as replacing the constituent elements of the embodiment with well-known constituent elements.

1 Motorcycle (straddle type vehicle)
24 Pivot plate 40 Body cover 41 Upper cowl (first cover part)
42 Side cowl (second cover part)
50 Slope 54 Joint 55 Wall 60 Opening 65 Step

Claims (7)

An upper cowl (41) has an inclined surface (50) that is inclined to be located inward in the vehicle width direction toward the front of the vehicle, and covers the side surface of the vehicle and the upper front part of the vehicle body ,
The upper cowl (41) has an opening (60) that opens the inclined surface (50) in the vehicle width direction,
The upper cowl (41) has a wall (55) that partitions the opening (60),
The inclined surface (50) of the upper cowl (41) is a lower edge (51a) of an upper inclined portion (51) that is inclined downward toward the front of the vehicle and located outward in the vehicle width direction as it goes downward. a lower inclined portion (52) inclined inward in the vehicle width direction from the lower edge (51a) toward the lower side of the vehicle,
The downward slope portion (52) is spaced apart from a pair of side cowls (42) that extend below and rearward of the upper cowl (41) and cover the front side of the vehicle;
In a side view of the vehicle, the lower edge (51a) of the inclined surface (50) extends parallel to the upper edge (42a) of the side cowl (42),
A straddle-type vehicle , wherein the opening (60) is provided in the downwardly inclined portion (52) of the upper cowl (41) . The straddle-type vehicle according to claim 1, wherein the opening (60) is located further forward of the vehicle than the pivot plate (24). The inclined surface (50) is inclined downward toward the front of the vehicle so as to be located on the lower side of the vehicle;
The straddle-type vehicle according to claim 1 or 2, wherein the opening (60) opens toward the top of the vehicle. The straddle-type vehicle according to any one of claims 1 to 3, wherein the opening (60) extends in the longitudinal direction of the vehicle. The inclined surface (50) is inclined downward toward the front of the vehicle so as to be located on the lower side of the vehicle;
The straddle-type vehicle according to any one of claims 1 to 4, wherein the opening (60) extends along the slope of the slope (50). The car body cover (40) is
the upper cowl (41);
A side cowl (42) connected to the upper cowl (41),
6. The opening (60) is provided at a joint (54) between the upper cowl (41) and the side cowl (42). A straddle-type vehicle. The upper cowl (41) has a stepped portion (65) on the inner side in the vehicle width direction than the outer end in the vehicle width direction of the inclined surface (50),
The straddle-type vehicle according to any one of claims 1 to 6, wherein the opening (60) is provided in the step (65).

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