Exterior parts structure

Abstract

The utility model provides an exterior component structure. A front unit (60) of one embodiment of the utility model comprises: a central fairing (72) which is arranged on the outside in the vehicle width direction relative to a vehicle body (2); and a tunnel wing (62) which has an inclined portion (93a) extending from the central fairing (72) to the outside in the vehicle width direction and extending upward as it moves toward the rear. A connecting portion (100) for connecting the inside and outside of the central fairing (72) is formed in a portion of the central fairing (72) which is located below the inclined portion (93a). The inclined portion (93a) covers at least a portion of the connecting portion (100) from the front of the connecting portion (100).

Description

Technical Field

[0001] The utility model relates to an exterior component structure. Background Art

[0002] A straddle-type vehicle such as a motorcycle is provided with a fairing unit that surrounds the vehicle body from the front to the side. As such a fairing unit, there is known a structure in which a central fairing that covers the side of the vehicle body has an inner central fairing and an outer central fairing that is arranged on the outside in the vehicle width direction relative to the inner central fairing (for example, refer to Japanese Patent Gazette No. 2017-109673). An air path is formed between the inner central fairing and the outer central fairing. According to this structure, the inside of the air path is connected to the inside of the inner central fairing through an opening formed in the inner central fairing. As a result, in the fairing unit, the running wind that has passed through the radiator can be easily discharged to the outside of the vehicle through the air path. Utility Model Content

[0003] Recently, the case of providing a duct wing that protrudes from the central fairing to the outside in the vehicle width direction and is inclined with the front lower and the rear higher is being studied. In this case, the traveling wind that enters the space below the duct wing from the front of the duct wing passes through the space below the duct wing and is discharged to the rear of the duct wing. At this time, the pressure in the space below the duct wing is lower than the pressure in the space above the duct wing. Therefore, turbulence is easily generated due to the negative pressure generated in the space below the duct wing, and it is difficult to achieve improved operability.

[0004] The present invention provides an exterior member structure capable of suppressing turbulence of traveling wind around a center fairing while suppressing degradation of exterior design.

[0005] The exterior component structure of the first scheme of the utility model comprises: a first exterior component, which is arranged on the outer side in the vehicle width direction relative to the vehicle body and covers the vehicle body from the side; and a second exterior component, which has an inclined portion extending from the first exterior component to the outer side in the vehicle width direction and extending upward toward the first side in the vehicle front-rear direction, and a space penetrating along the vehicle front-rear direction is formed between the second exterior component and the first exterior component, wherein a connecting portion that connects the inside and outside of the first exterior component is formed in a portion of the first exterior component located on the first side in the up-down direction relative to the inclined portion, and the inclined portion covers at least a portion of the connecting portion from the front of the connecting portion.

[0006] According to the first scheme, the external air in the first exterior member flows out to the space on the first side in the vertical direction relative to the inclined portion through the connecting portion. Therefore, the pressure difference between the space on the first side and the space on the second side in the vertical direction relative to the inclined portion can be reduced. As a result, the turbulence of the running wind around the first exterior member can be suppressed. As a result, the operability can be improved.

[0007] In particular, in the first embodiment, the inclined portion covers at least a portion of the connecting portion from the front of the connecting portion, so that the connecting portion is difficult to visually confirm when viewed from the front of the vehicle. Therefore, regarding the vehicle appearance, the reduction in appearance design associated with the formation of the connecting portion can be suppressed.

[0008] According to a second aspect, in addition to the exterior member structure of the first aspect, the communication portion may include a plurality of communication holes, and the inclined portion may entirely cover at least one of the plurality of communication holes when viewed from the front of the vehicle.

[0009] According to the second aspect, the communicating portion is formed of a plurality of communicating holes, thereby ensuring the opening area of ​​the communicating portion and suppressing a decrease in the strength of the first exterior member caused by the formation of the communicating portion.

[0010] Furthermore, since at least one communicating hole is covered from the front by the inclined portion, it is possible to suppress a reduction in the design quality associated with the formation of the communicating hole.

[0011] A third scheme, based on the exterior component structure of the first or second scheme mentioned above, may be that the exterior component structure comprises a front exterior component which is arranged in front of the vehicle body and covers the vehicle body from the front, and an inlet for connecting the inside and outside of the front exterior component is formed in a portion of the front exterior component which is located close to the first exterior component relative to the center in the vehicle width direction and in a portion which is located within the height range of the connecting portion in the up and down directions.

[0012] According to the third aspect, the traveling wind can be effectively taken into the exterior member structure. Therefore, the traveling wind can be effectively supplied to the space on the first side in the vertical direction with respect to the inclined portion through the communicating portion.

[0013] According to a fourth aspect, in the exterior member structure of the third aspect, a guide surface extending outward in the vehicle width direction as it goes toward the rear may be formed on a portion of the inner peripheral surface of the introduction port located inward in the vehicle width direction.

[0014] According to the fourth aspect, the running wind flows along the guide surface during the flow in the inlet, and is guided to the outside in the vehicle width direction. As a result, the running wind flowing into the exterior component structure is easily guided to the connecting portion. Therefore, the running wind can be effectively supplied to the space on the first side in the vertical direction relative to the inclined portion through the connecting portion.

[0015] According to a fifth aspect, in the exterior member structure of any one of the first to fourth aspects, the communication portion may extend along an extending direction of the inclined portion.

[0016] According to the fifth aspect, the distance between the connecting portion and the inclined portion can be easily set uniform over the entire area in the vehicle longitudinal direction. Therefore, the connecting portion can easily supply the running wind over the entire area in the vehicle longitudinal direction in the space on the first side in the vertical direction relative to the inclined portion.

[0017] According to a sixth aspect, in the exterior member structure of the fifth aspect, a dimension of the communication portion in a direction intersecting the extending direction when viewed from the opening direction of the communication portion increases toward the rear.

[0018] According to the sixth aspect, the pressure loss when passing through the communication portion can be reduced toward the rear. Thus, the traveling wind can be easily supplied through the communication portion to the entire area in the vehicle front-rear direction in the space on the first side in the vertical direction of the inclined portion.

[0019] The seventh scheme may be based on the exterior component structure of any one of the above-mentioned first to sixth schemes, and the inclined portion may extend toward the first side in the upward and downward direction toward the outer side in the vehicle width direction, and cover at least a portion of the connecting portion from the outer side in the vehicle width direction relative to the connecting portion.

[0020] According to the seventh aspect, the communicating portion is difficult to be visually recognized when the vehicle is viewed from the side. Therefore, it is possible to suppress a decrease in the appearance of the vehicle due to the formation of the communicating portion.

[0021] According to the above configuration, it is possible to suppress turbulence of the traveling wind around the center cowl while suppressing a decrease in the exterior design. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view of the motorcycle according to the embodiment.

[0023] Figure 2 It is a perspective view of the front part of the motorcycle according to the embodiment.

[0024] Figure 3 It is a partial front view of the motorcycle according to the embodiment.

[0025] Figure 4 It is a partial side view of the motorcycle according to the embodiment.

[0026] Figure 5 is with Figure 4 The cross-sectional view corresponding to the VV line.

[0027] Figure 6 It is an explanatory diagram showing the result of CFD analysis when the motorcycle of the embodiment is viewed from the side.

[0028] Figure 7 It is an explanatory diagram showing the result of CFD analysis when the motorcycle of the comparative example is viewed from the side.

[0029] Figure 8 It is an explanatory diagram showing the result of CFD analysis when the motorcycle of the embodiment is viewed from the front.

[0030] Fig. 9 It is an explanatory diagram showing the result of CFD analysis when the motorcycle of the comparative example is viewed from the front.

[0031] Fig.10 It is an explanatory diagram showing the result of CFD analysis in a transverse cross-section of the motorcycle according to the embodiment.

[0032] Fig.11 It is an explanatory diagram showing the result of CFD analysis in a transverse cross-section of a motorcycle of a comparative example. DETAILED DESCRIPTION

[0033] Hereinafter, an embodiment of the present invention will be described based on the drawings. In the embodiment and modified examples described below, corresponding structures are denoted by the same reference numerals and description thereof may be omitted.

[0034] In the following description, a motorcycle (an example of a straddle-type vehicle) is cited as an example of a vehicle having an exterior component structure. Unless otherwise specified, the directions such as front, back, left, and right in the following description are the same as those in the motorcycle 1. In this case, the arrow FR in the figure indicates the front of the motorcycle 1, the arrow UP in the figure indicates the top of the motorcycle 1, the arrow LH in the figure indicates the left of the motorcycle 1, and the center line CL indicates the center position of the motorcycle 1 in the vehicle width direction.

[0035] In the following description, expressions such as "parallel", "orthogonal", "center", "coaxial" and the like indicating relative or absolute configurations not only strictly indicate such configurations, but also indicate a state of relative displacement at an angle or distance with a tolerance to obtain the same function. In addition, in the present embodiment, "facing" is not limited to the case where the orthogonal directions (normal directions) of the two surfaces coincide with each other, but also includes the case where the orthogonal directions intersect each other.

[0036] [Motorized two-wheeled vehicle 1]

[0037] Figure 1 It is a side view of the motorcycle 1 of embodiment.

[0038] like Figure 1 As shown, the motorcycle 1 of the embodiment is, for example, a racing type. The motorcycle 1 includes a vehicle body 2 and a vehicle body cover 3 .

[0039] <Body 2>

[0040] The vehicle body 2 includes a front wheel 10 , a rear wheel 11 , a front fork 12 supporting the front wheel 10 , a swing arm 13 supporting the rear wheel 11 , a frame 14 supporting the front fork 12 and the swing arm 13 , and an engine 15 (internal combustion engine, prime mover) supported by the frame 14 .

[0041] The front forks 12 are provided on both sides (a pair of left and right) in the vehicle width direction with respect to the front wheel 10. Each front fork 12 supports the front wheel 10 at its lower end. A front fender 20 is provided at a portion of each front fork 12 located above the front wheel 10.

[0042] The vehicle frame 14 includes a head pipe 21 , a pair of left and right main frames 22 , a pair of left and right pivot frames 23 , and a seat frame 24 .

[0043] The head pipe 21 is provided at the front end of the frame 14 in a state of being inclined with respect to the vertical direction. The head pipe 21 supports the steering rod 25 so as to be rotatable. The upper part of each front fork 12 is connected to the steering rod 25. A handlebar 26 of a rod type is attached to the top bridge of the steering rod 25, for example. Thus, the front fork 12 (front wheel 10) can be steered via the handlebar 26.

[0044] Each main frame 22 extends in two branches toward the rear from the head pipe 21. Specifically, each main frame 22 extends downward toward the rear when viewed from the side of the vehicle. A fuel tank 30 is mounted on the main frame 22 so as to straddle each main frame 22.

[0045] Each pivot frame 23 extends downward from the rear end portion of each main frame 22 .

[0046] The seat frame 24 is connected to the rear end of each main frame 22. The seat frame 24 extends upward toward the rear. A seat 31 is mounted on the seat frame 24.

[0047] The swing arm 13 is connected to the pivot frame 23 so as to be swingable in the vertical direction. The swing arm 13 extends downward from the pivot frame 23 toward the rear. The rear wheel 11 is supported at the rear end of the swing arm 13.

[0048] The engine 15 is mounted on the vehicle frame 14. It should be noted that the prime mover of the motorcycle 1 is not limited to the engine 15, and may be an electric motor or the like.

[0049] <Body cover 3>

[0050] The vehicle body cover 3 constitutes an exterior portion of the vehicle body 2. Specifically, the vehicle body cover 3 includes a rear unit 50 and a front unit (exterior member structure) 60.

[0051] The rear unit 50 surrounds the vehicle body 2 from the rear and both sides in the vehicle width direction at the rear portion of the vehicle body 2. Specifically, the rear unit 50 includes side covers 51 and a rear cowl 52.

[0052] The side covers 51 cover a portion of the vehicle frame 14 (seat frame 24) located below the fuel tank 30 from both sides in the vehicle width direction.

[0053] The rear cowl 52 is connected to the rear of the side cowl 51. The rear cowl 52 surrounds the seat frame 24 below the seat 31 from both sides and the rear in the vehicle width direction.

[0054] The front unit 60 includes a fairing body 61 and a tunnel wing (second exterior member) 62. The fairing body 61 surrounds the vehicle body 2 from the front and both sides in the vehicle width direction at the front part of the vehicle body 2. Specifically, the fairing body 61 includes an upper fairing (front exterior member) 71, a center fairing (first exterior member) 72, and a lower fairing 73.

[0055] Figure 2 It is a perspective view of the front part of the motorcycle 1. Figure 3 It is a partial front view of the motorcycle 1.

[0056] like Figure 2 , Figure 3 As shown, the upper fairing 71 constitutes the upper end of the front unit 60. The upper fairing 71 covers the components of the upper front portion of the vehicle body 2 (for example, the upper portion of the front fork 12, the steering rod 25, etc.) from the front. Specifically, the upper fairing 71 includes an upper cover 81, a lower cover 82, and an extension 83.

[0057] Figure 4 It is a partial side view of the motorcycle 1.

[0058] exist Figure 4 In the side view of the vehicle shown in FIG. 1 , the upper cover 81 extends upward as it moves toward the rear, and Figure 3 In the front view of the vehicle shown, the upper cover 81 extends outward in the vehicle width direction as it goes upward.

[0059] The lower cover 82 is connected to the lower edge of the upper cover 81. Figure 4 In the side view of the vehicle shown, the lower cover 82 extends rearward as it moves downward. Figure 3 In the front view of the vehicle shown, the dimension of the lower cover 82 in the vehicle width direction gradually decreases as it goes downward. An air intake port 82a is formed in the center portion of the lower cover 82 in the vehicle width direction.

[0060] The air inlet 82a penetrates the lower cover 82 in the front-rear direction of the vehicle. The air taken in from the air inlet 82a is supplied to the engine 15 through an air filter (not shown) and the like. Light openings 82b are formed in the lower cover 82 at the portions located on both sides of the air inlet 82a in the vehicle width direction. Headlights 84 are respectively arranged in the light openings 82b.

[0061] like Figure 4 As shown, the extension portion 83 is connected downward from the lower edge of the lower cover 82. The extension portion 83 protrudes forward relative to the lower cover 82 in a side view of the vehicle.

[0062] like Figure 3 As shown, an introduction port 83a is formed in a portion of the extension portion 83 located below each lamp opening portion 82b. Each introduction port 83a penetrates the extension portion 83 in the front-to-back direction. Each introduction port 83a communicates the inside and outside of the front unit 60. When viewed from the front of the vehicle, each introduction port 83a is formed in a polygonal shape (e.g., a trapezoidal shape).

[0063] The opening area (cross-sectional area orthogonal to the opening direction) of each inlet 83a gradually decreases from the front toward the rear. Specifically, the portion of the inner circumferential surface of each inlet 83a located on the inner side in the width direction (hereinafter referred to as the guide surface 83a1) is formed as an inclined surface extending outward in the vehicle width direction as it moves toward the rear. Therefore, when the vehicle is viewed from the front, a portion of the front end opening in each inlet 83a overlaps with the corresponding front fork 12, and the rear end opening is located on the outside in the vehicle width direction relative to the corresponding front fork 12. When the vehicle is viewed from the front, the guide surface 83a1 of the present embodiment gradually decreases in size in the vehicle width direction as it moves upward. It should be noted that the position, shape, etc. of the inlet 83a can be appropriately changed.

[0064] like Figure 1As shown, the central fairings 72 are arranged on both sides of the vehicle body 2 in the vehicle width direction and are arranged in the portion below the handlebar 26. Each central fairing 72 covers the central portion of the front portion of the vehicle body 2 in the vertical direction (for example, the front fork 12, the steering rod 25, the front portion of the main frame 22, etc.) from both sides in the vehicle width direction. It should be noted that each central fairing 72 has a bilaterally symmetrical structure. Therefore, the following describes the details of the central fairing 72 by taking one (right) central fairing 72 as an example.

[0065] like Figure 3 , Figure 4 As shown, the center cowl 72 extends downward and rearward from the right side of the lower edge of the upper cowl 71 (lower cowl 82) in the vehicle width direction. The center cowl 72 includes an upper center portion 85 and a lower center portion 86 in the vehicle front view.

[0066] exist Figure 3 In the front view of the vehicle shown, the upper center portion 85 extends downward from the lower edge of the upper fairing 71 to the outer side in the vehicle width direction. The upper edge of the upper center portion 85 is located on the inner side in the vehicle width direction relative to the outer edge of the upper cover 81 in the vehicle width direction. Figure 4 In the side view of the vehicle shown, the upper center portion 85 extends upward as it goes toward the rear. The dimension of the upper center portion 85 in the vertical direction gradually increases as it goes toward the rear.

[0067] The lower central portion 86 is connected to the lower edge of the upper central portion 85. Figure 3 In the front view of the vehicle shown in the figure, the lower center portion 86 extends downward while being curved so as to bulge outward in the vehicle width direction. Figure 4 In the side view of the vehicle shown in FIG. 1 , the lower central portion 86 extends toward the rear as it moves downward. A protrusion 86a is formed at the upper and front end of the lower central portion 86. The protrusion 86a protrudes outward from the lower central portion 86 in the vehicle width direction and extends in the front-rear direction. Figure 3 As shown, the protrusion 86a is formed into a trapezoidal shape in which the amount of protrusion from the lower center portion 86 in the vehicle width direction gradually increases from both sides in the front-rear direction toward the center portion in a plan view of the vehicle.

[0068] A base portion 86b is formed in a portion of the lower central portion 86 located below the protrusion 86a. The base portion 86b bulges outward in the vehicle width direction from the lower central portion 86 and extends in the vehicle front-rear direction. When viewed from the front of the vehicle, the amount of the base portion 86b protruding from the lower central portion 86 gradually decreases as it moves downward. The upper surface of the base portion 86b is formed as an inclined surface that extends upward as it moves backward.

[0069] A through hole 86c is formed in the lower central portion 86 at a position rearward of the protrusion 86a and upward of the base portion 86b. The through hole 86c extends forward and obliquely upward in a slit shape when viewed from the side. The through hole 86c penetrates the lower central portion 86 in the vehicle width direction, thereby connecting the inside and outside of the fairing body 61.

[0070] like Figure 1 As shown, the lower fairing 73 extends downward from the lower edge of each center fairing 72. The lower fairing 73 constitutes the lower end of the front unit 60. The lower fairing 73 covers the components of the front lower part of the vehicle body 2 (for example, the engine 15, the lower part of the main frame 22, etc.) from both sides and the front in the vehicle width direction.

[0071] like Figure 3 As shown, the duct wings 62 are respectively arranged on both sides of the fairing body 61 in the vehicle width direction. Each duct wing 62 has a bilaterally symmetrical structure. Therefore, the details of the duct wing 62 will be described below by taking the duct wing 62 arranged on the right side as an example.

[0072] The duct vane 62 is an aerodynamic member that changes the flow of the traveling wind on the outer side in the vehicle width direction of the fairing body 61. Specifically, the duct vane 62 includes an upper side mounting piece 91, a lower side mounting piece 92, and a duct portion 93.

[0073] exist Figure 4 When viewed from the side of the vehicle shown, the upper mounting piece 91 is formed into a trapezoidal shape whose dimension in the front-to-rear direction of the vehicle gradually decreases as it moves upward. The upper mounting piece 91 overlaps with the portion of the upper fairing 71 extending to the lower cover 82 and the extension 83 from the right side. The upper end edge of the upper mounting piece 91 is connected to a portion of the lower end edge of the upper cover 81 that is located further rearward than the lamp opening 82b. The front end edge of the upper mounting piece 91 extends along the opening edge of the lamp opening 82b and the opening edge of the inlet 83a. Specifically, when viewed from the side of the vehicle, the front end edge of the upper mounting piece 91 extends downward as it moves forward, and on the other hand, Figure 3 When viewed from the front of the vehicle shown in FIG. 1 , the front edge of the upper mounting piece 91 extends inwardly in the vehicle width direction as it moves downward. Figure 4 As shown, the lower edge of the upper mounting piece 91 extends upward toward the rear along the upper edge of the upper center portion 85. Therefore, the outer side surface of the upper mounting piece 91 and the outer surface of the upper fairing 71 (upper cover 81) constitute the outer side surface of the front unit 60.

[0074] The lower mounting piece 92 overlaps with the side surface of the base portion 86b that faces the outer side in the vehicle width direction. Therefore, the outer surface of the lower mounting piece 92 and the outer surface of the center cowl 72 together constitute the outer surface of the front unit 60. Figure 3As seen from the front of the vehicle shown, the lower mounting piece 92 extends outward in the vehicle width direction as it goes upward.

[0075] The tunnel portion 93 is formed in a semi-cylindrical shape extending in the front-rear direction. The tunnel portion 93 connects the lower edge of the upper mounting piece 91 and the upper edge of the lower mounting piece 92. The tunnel portion 93 includes an inclined portion 93a and a connecting portion 93b.

[0076] The inclined portion 93a extends outward in the vehicle width direction from the lower edge of the upper mounting piece 91. That is, the inclined portion 93a extends outward in the vehicle width direction from a portion of the center fairing 72 located at the upper edge of the upper center portion 85. Figure 4 As shown in FIG. 1 , the inclined portion 93a extends upward as it moves toward the rear (the first side in the vehicle front-rear direction). Figure 4 In the example of FIG. 1 , the angle of inclination of the inclined portion 93a relative to the front-rear direction is the same as the angle of inclination of the upper central portion 85 relative to the front-rear direction. The inclined portion 93a extends downward as it moves toward the outer side in the vehicle width direction. In addition, the front and rear end edges of the inclined portion 93a extend in a direction approaching each other in the vehicle front-rear direction as they move toward the outer side in the vehicle width direction.

[0077] like Figure 3 As shown, the connecting portion 93b connects the outer end edge of the inclined portion 93a in the vehicle width direction to the upper end edge of the lower mounting piece 92. Specifically, the connecting portion 93b extends downward from the outer end edge of the inclined portion 93a in the vehicle width direction while bulging outward in the vehicle width direction. Figure 4 In the side view of the vehicle shown, the connecting portion 93b extends rearward as it moves downward. Therefore, the front edge of the connecting portion 93b is located behind the front edge of the inclined portion 93a, and the rear edge of the connecting portion 93b is located behind the rear edge of the inclined portion 93a.

[0078] The space between the central fairing 72 and the channel portion 93 constitutes a flow path S for the traveling wind to pass through. The flow path S extends upward as it goes toward the rear. Therefore, the front end opening portion in the flow path S opens obliquely downward toward the front, and the rear end opening portion opens obliquely upward toward the rear. When observed from the front view of the vehicle, at least a portion of the front end opening portion of the flow path S is located below the inlet 83a. However, the front end opening portion of the flow path S may also be located above the inlet 83a. In the present embodiment, the flow path cross-sectional area (the area orthogonal to the extension direction) of the flow path S gradually expands as it goes toward the rear.

[0079] Figure 5 is with Figure 4 The cross-sectional view corresponding to the VV line.

[0080] Here, if Figure 4, Figure 5 As shown, a connecting portion 100 is formed in the upper central portion 85 in the portion located in the flow path S to connect the inside and outside of the fairing body 61. The connecting portion 100 is composed of a plurality of connecting holes 101 that penetrate the upper central portion 85 in the vehicle width direction. The connecting holes 101 are arranged at equal intervals in the extending direction of the upper central portion 85 (the inclined portion 93a). Figure 4 In the side view of the vehicle shown, each communication hole 101 is formed in a parallelogram shape with the vertical direction as the longitudinal direction and the upper end portion being inclined in a state where the upper end portion is located forward with respect to the lower end portion.

[0081] However, the shape of each communicating hole 101 in a side view may be changed appropriately.

[0082] When viewed from the side of the vehicle, the dimensions of the width direction (the extension direction of the upper central portion 85) of each communicating hole 101 are equal to each other. On the other hand, the dimensions of the length direction (the dimensions in the direction intersecting the extension direction of the upper central portion 85) of each communicating hole 101 gradually increase from the communicating hole 101 on the front side toward the communicating hole 101 on the rear side. Therefore, the dimensions of the communicating portion 100 in the vertical direction gradually increase from the front toward the rear. However, the dimensions of each communicating hole 101 can be appropriately changed.

[0083] exist Figure 3 In the front view of the vehicle shown in FIG. 1 , at least a portion of the communication portion 100 is located within the height range T of the inlet 83a in the vertical direction (overlaps with the inlet 83a in the vertical direction). In the present embodiment, the communication holes 101 located in the front half of each communication hole 101 (for example, four communication holes 101 from the front) are located within the height range T of the inlet 83a in the vertical direction. However, the communication portion 100 may be located as a whole within the height range T of the inlet 83a in the vertical direction. The communication portion 100 may also be deviated from the inlet 83a in the vertical direction as a whole.

[0084] When the vehicle is viewed from the front, the inclined portion 93a covers the entirety of the communication portion 100 from the front. That is, when the vehicle is viewed from the front, the communication portion 100 overlaps with the inclined portion 93a, and thus the communication portion 100 cannot be visually confirmed from the front of the motorcycle 1. It should be noted that the inclined portion 93a only needs to cover at least a portion of the communication portion 100 from the front of the communication portion 100, and preferably covers at least one of the communication holes 101 as a whole. In this case, when the vehicle is viewed from the front, a portion of the communication portion 100 may deviate from the inclined portion 93a in the up-down direction or the vehicle width direction.

[0085] like Figure 4As shown, when viewed from the side of the vehicle, the entirety of the connecting portion 100 is covered by the channel portion 93 from the outside in the vehicle width direction. That is, when viewed from the side of the vehicle, the connecting portion 100 overlaps with the channel portion 93, so that the connecting portion 100 cannot be visually confirmed from the side of the two-wheeled motor vehicle 1. In this embodiment, when viewed from the side of the vehicle, the entirety of the connecting portion 100 overlaps with the inclined portion 93a. However, when viewed from the side of the vehicle, the connecting portion 100 may overlap with the connecting portion 93b. In addition, when viewed from the side of the vehicle, the connecting portion 100 may be configured to be offset in the front-rear direction relative to the channel portion 93.

[0086] In the motorcycle 1 of this embodiment, a portion of the running wind received by the front unit 60 from the front flows into the flow path S through the front end opening of the flow path S. As described above, the inclined portion 93a extends upward toward the rear. Therefore, the pressure in the flow path S (the space below the inclined portion 93a) is lower than the pressure in the space above the inclined portion 93a and the fairing body 61.

[0087] Part of the running wind received by the front unit 60 from the front is introduced into the fairing body 61 through the introduction port 83a. Part of the running wind introduced into the fairing body 61 is discharged into the flow path S through the connecting portion 100 (each connecting hole 101) due to the influence of negative pressure generated in the space below the inclined portion 93a during the process of flowing in the fairing body 61. As a result, the running wind flowing into the flow path S from the front end opening of the flow path S is discharged from the flow path S through the rear end opening of the flow path S together with the running wind discharged into the flow path S from the connecting portion 100.

[0088] As described above, the motorcycle 1 of the present embodiment has a structure in which the communication portion 100 for communicating the inside and outside of the center cowl 72 is formed in a portion of the center cowl 72 that is located below the inclined portion 93 a .

[0089] According to this structure, the outside air in the center fairing 72 flows out to the space below the inclined portion 93a through the connecting portion 100. Therefore, the pressure difference between the space below the inclined portion 93a and the space above the inclined portion 93a can be reduced. As a result, the turbulence of the running wind around the center fairing 72 can be suppressed. As a result, the operability can be improved.

[0090] In particular, in the motorcycle 1 of the present embodiment, the inclined portion 93 a is configured to cover at least a portion of the communicating portion 100 from the front of the communicating portion 100 .

[0091] According to this structure, it is difficult to visually recognize the communication portion 100 when the vehicle is viewed from the front. Therefore, it is possible to suppress the deterioration of the design of the vehicle appearance due to the formation of the communication portion 100.

[0092] In the motorcycle 1 of the present embodiment, the inclined portion 93 a is configured to entirely overlap at least one of the plurality of communicating holes 101 .

[0093] According to this structure, the communication portion 100 is formed of a plurality of communication holes 101, thereby ensuring the opening area of ​​the communication portion 100 and suppressing the reduction in strength of the center fairing 72 associated with the formation of the communication portion 100. In addition, at least one communication hole 101 is covered from the front by the inclined portion 93a, thereby suppressing the reduction in the appearance design associated with the formation of the communication hole 101.

[0094] In the motorcycle 1 of the present embodiment, the introduction port 83a is formed in a portion of the upper cowl 71 that is located close to the center cowl 72 relative to the center in the vehicle width direction and in a portion within the height range of the communication portion 100 in the vertical direction.

[0095] According to this configuration, the traveling wind can be efficiently taken into the fairing body 61 .

[0096] Therefore, the traveling wind can be efficiently supplied to the space below the inclined portion 93 a through the communicating portion 100 .

[0097] In the motorcycle 1 of the present embodiment, a guide surface 83a1 extending toward the outside in the vehicle width direction as it goes toward the rear is formed in a portion of the inner peripheral surface of the introduction port 83a located inside in the vehicle width direction.

[0098] According to this structure, the running wind flows along the guide surface 83a1 during the process of flowing in the inlet 83a, and is guided to the outside in the vehicle width direction. As a result, the running wind flowing into the fairing body 61 is easily guided to the connecting portion 100. Therefore, the running wind can be effectively supplied to the space below the inclined portion 93a through the connecting portion 100.

[0099] In the motorcycle 1 of the present embodiment, the communication portion 100 is configured to extend along the extending direction of the inclined portion 93a.

[0100] This configuration makes it easy to set the distance between the communication portion 100 and the inclined portion 93a uniform over the entire vehicle longitudinal direction. Therefore, the traveling wind is easily supplied through the communication portion 100 to the entire vehicle longitudinal direction in the space below the inclined portion 93a.

[0101] The motorcycle 1 of the present embodiment has a structure in which the dimension of the communicating portion 100 in a direction intersecting the extending direction of the inclined portion 93a increases toward the rear when viewed from the opening direction of the communicating portion 100 (the communicating hole 101).

[0102] According to this configuration, the pressure loss when passing through the communication portion 100 can be reduced as it goes toward the rear. Thus, the traveling wind can be easily supplied through the communication portion 100 to the entire area of ​​the vehicle front-rear direction in the space below the inclined portion 93a.

[0103] In the motorcycle 1 of the present embodiment, the inclined portion 93a is configured such that it extends downward toward the outer side in the vehicle width direction and covers at least a portion of the communicating portion 100 from the outer side in the vehicle width direction.

[0104] According to this structure, it is difficult to visually recognize the communication portion 100 when the vehicle is viewed from the side. Therefore, it is possible to suppress the reduction in the design of the vehicle appearance due to the formation of the communication portion 100.

[0105] Here, the inventor of the present application verified the effect of the connecting portion 100 of the present embodiment by using computational fluid dynamics (CFD) analysis. In this verification, a two-wheeled motor vehicle 1 having a connecting portion 100 as in the above-mentioned embodiment was used as an example, and a two-wheeled motor vehicle 1 not having a connecting portion 100 was used as a comparative example. It should be noted that in Figure 6 In the following figures, the same reference numerals are used for the same structures as those of the motorcycle 1 according to the embodiment. Figure 6 In the following figures, the flow of the traveling wind is shown in a linear form, and the flow velocity or pressure of the traveling wind is shown by the depth of the color. In this case, it means that the flow velocity or pressure increases as the color becomes darker.

[0106] Figure 6 It is an explanatory diagram showing the result of CFD analysis when the motorcycle 1 of the embodiment is viewed from the side. Figure 7 It is an explanatory diagram showing the result of CFD analysis when the motorcycle 1 of the comparative example is viewed from the side. Figure 8 It is an explanatory diagram showing the result of CFD analysis when the motorcycle 1 of the embodiment is viewed from the front. Fig. 9 1 is an explanatory diagram showing the result of CFD analysis when the motorcycle 1 of the comparative example is viewed from the front. Figures 6 to 9 In the diagram, the speed of the wind is indicated by the depth of the color.

[0107] like Figure 7 , Fig. 9 As shown in the comparative example, in the structure without the communicating portion 100, the flow velocity of the traveling wind is reduced and negative pressure is generated in the space below the inclined portion 93a in the flow path S. As a result, the traveling wind is disturbed in the space below the inclined portion 93a.

[0108] On the other hand, Figure 6 , Figure 8 In the illustrated embodiment, it is understood that as a result of supplying the traveling wind to the space below the inclined portion 93 a through the communicating portion 100 , the generation of turbulent flow can be suppressed.

[0109] Fig.10 It is an explanatory diagram showing the result of CFD analysis in a transverse cross-section of the motorcycle 1 according to the embodiment. Fig.11 1 is an explanatory diagram showing the results of CFD analysis in a transverse cross-section of a motorcycle 1 according to a comparative example. Fig.10 , Fig.11 In the diagram, the depth of color indicates the pressure of the traveling wind.

[0110] like Fig.11 As shown, it can be seen that in the structure without the communicating portion 100, the pressure in the space below the inclined portion 93a in the flow path S is reduced.

[0111] On the other hand, Fig.10 In the illustrated embodiment, it is understood that as a result of supplying the traveling wind to the space below the inclined portion 93 a through the communicating portion 100 , a decrease in pressure can be suppressed.

[0112] [Other Modifications]

[0113] The above describes the embodiments of the present invention, but the present invention is not limited to these embodiments. Without departing from the scope of the present invention, the structure can be added, omitted, replaced and other changes. The present invention is not limited by the above description, but only by the additional technical solutions.

[0114] In the above-mentioned embodiment, the case where the structure of the present invention is adopted in the racing type motorcycle 1 is described, but the present invention is not limited to this structure, and can be applied to various types of motorcycles 1.

[0115] In the above-mentioned embodiment, the case where the exterior component structure of the utility model is adopted in the motorcycle 1 is described as an example, but it is not limited to this structure. The exterior component structure can also be adopted in a three-wheeled vehicle (including a vehicle with two front wheels and one rear wheel in addition to a front wheel and two rear wheels) or a four-wheeled vehicle (a four-wheeled buggy, etc.).

[0116] In the above-mentioned embodiment, the structure in which the inclined portion 93a extends upward as it moves toward the rear (the first side in the vehicle front-rear direction) is described, but the present invention is not limited to this structure. The inclined portion may also extend upward as it moves toward the front (the second side in the vehicle front-rear direction). In this case, the communication portion is formed in a portion of the center fairing 72 that is located above the inclined portion 93a (the first side in the up-down direction).

[0117] In the above-mentioned embodiment, the inclined portion 93a and the connecting portion 93b together constitute the duct portion 93, but the present invention is not limited to this structure. The duct wing 62 may also be a structure in which the connecting portion 93b is not provided and the inclined portion 93a is formed as a cantilever. In this case, the space below the inclined portion 93a (the space surrounded by the inclined portion 93a and the center fairing 72) constitutes the flow passage S open to the bottom and the outside in the vehicle width direction.

[0118] In the above-mentioned embodiment, the front unit 60 is described as having a structure including the tunnel vane 62, but the present invention is not limited to this structure. The rear unit 50 may also be configured to have a tunnel vane.

[0119] In the above-described embodiment, the structure in which the introduction port 83 a is formed in the upper cowl 71 has been described, but the present invention is not limited to this structure.

[0120] In the above embodiment, the communicating portion 100 is described as being formed of a plurality of communicating holes 101, but the present invention is not limited to this structure. The communicating portion 100 may be formed of a single hole.

[0121] In the above embodiment, the communicating portion 100 is described as extending in the extending direction of the inclined portion 93a, but the present invention is not limited to this structure. The communicating portion 100 may extend in a direction intersecting the extending direction of the inclined portion 93a.

[0122] In the above embodiment, the communicating holes 101 are arranged in the front-rear direction of the vehicle, but the present invention is not limited to this structure. The communicating holes 101 may be arranged in the up-down direction or the like.

[0123] Furthermore, the components in the above-described embodiments may be appropriately replaced with well-known components without departing from the gist of the present invention, and the above-described modifications may be appropriately combined.

Claims

1. An exterior component structure, characterized in that: The exterior component structure comprises: a first exterior member disposed on an outer side in a vehicle width direction relative to the vehicle body and covering the vehicle body from the side; and a second exterior member having an inclined portion extending outward in the vehicle width direction from the first exterior member and extending upward toward a first side in the vehicle front-rear direction, and forming a space penetrating in the vehicle front-rear direction between the second exterior member and the first exterior member, A communication portion for communicating the inside and outside of the first exterior member is formed in a portion of the first exterior member located on a first side in the up-down direction relative to the inclined portion. The inclined portion covers at least a portion of the communicating portion from the front of the communicating portion.

2. The exterior component structure according to claim 1, characterized in that: The communication portion includes a plurality of communication holes. The inclined portion covers the entirety of at least one of the plurality of communicating holes when viewed from the front of the vehicle.

3. The exterior component structure according to claim 1 or 2, characterized in that: The exterior member structure includes a front exterior member that is arranged in front of the vehicle body and covers the vehicle body from the front. An introduction port for communicating the inside and outside of the front exterior member is formed in a portion of the front exterior member located close to the first exterior member relative to the center in the vehicle width direction and within the height range of the communication portion in the vertical direction.

4. The exterior component structure according to claim 3, characterized in that: A guide surface that extends toward the outside in the vehicle width direction as it goes toward the rear is formed on a portion of the inner peripheral surface of the introduction port that is located on the inner side in the vehicle width direction.

5. The exterior component structure according to claim 1 or 2, characterized in that: The communication portion extends along an extending direction of the inclined portion.

6. The exterior component structure according to claim 5, characterized in that: When viewed from the opening direction of the communicating portion, a dimension of the communicating portion in a direction intersecting the extending direction increases toward the rear.

7. The exterior component structure according to claim 1 or 2, characterized in that: The inclined portion extends toward a first side in the vertical direction toward an outer side in the vehicle width direction, and covers at least a portion of the communicating portion from an outer side in the vehicle width direction with respect to the communicating portion.

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