CN218258516U

CN218258516U - Windproof structure for saddle-ride type vehicle

Info

Publication number: CN218258516U
Application number: CN202190000333.8U
Authority: CN
Inventors: 中西龙一; 藤田雄三; 黑田鼎; 井口知幸; 新村裕幸
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2020-03-26
Filing date: 2021-02-02
Publication date: 2023-01-10
Anticipated expiration: 2031-02-02
Also published as: WO2021192621A1; BR112022014731A2; JP7383127B2; JPWO2021192621A1

Abstract

The utility model provides a windproof structure of straddle type vehicle. A wind-proof structure for a saddle-ride type vehicle is provided with: a meter shade (60) that covers the meter (50) from above; a damper (70) disposed above the meter visor (60); an air guide member (80) which is disposed between the meter visor (60) and the windshield (70), and which forms an air guide path (83) between the vehicle width center (C) of the vehicle and the upper surface (61) of the meter visor (60), the air guide path (83) extending in a predetermined direction (X) that is inclined with respect to the vehicle width direction and the vehicle vertical direction; and a protrusion (90) that protrudes from the meter visor (60) behind the air guide passage (83) in the predetermined direction (X).

Description

Windproof structure for saddle-ride type vehicle

Technical Field

The utility model relates to a windproof structure of straddle type vehicle.

This application claims priority based on Japanese patent application No. 2020-056117 filed on the sun at 26/3/2020 and the content of which is incorporated herein by reference.

Background

Conventionally, there is a structure in which a windshield is disposed in a front portion of a saddle-ride type vehicle. In such a vehicle, negative pressure is generated in a space behind the windshield during traveling, and back pressure acting on an occupant (pressure from the rear toward the front) increases, which may deteriorate comfort of the occupant. Therefore, a structure is known in which traveling wind is introduced into a space behind the windshield to suppress the generation of negative pressure (see, for example, patent document 1). Patent document 1 discloses a windshield device for a saddle-ride type vehicle, in which a windshield serving as a wind screen is attached to a vehicle body, and an inlet port is formed between a central portion of a lower portion of the windshield in a vehicle width direction and the vehicle body by floating the central portion from the vehicle body, and a traveling wind is introduced to a rear side of the windshield through the inlet port.

Further, there is known a structure in which wind noise can be reduced by providing a structure in the air blowing path to control the airflow. In the windshield device described in patent document 1, a plate is disposed on the back surface side of the lower side of the windshield, and a protrusion protruding into the air blowing path between the plate and the windshield is formed. This reduces the wind blowing on the helmet of the driver, and at the same time, reduces the speed and wind noise.

Prior art documents

Patent document

Patent document 1: japanese patent No. 4397636

SUMMERY OF THE UTILITY MODEL

Summary of the utility model

Problems to be solved by the utility model

However, in the above-described windshield apparatus of the related art, the protrusion in the air blowing path extends rearward and outward in the vehicle width direction from the front end portion of the convex portion. Thus, the traveling wind in the blowing path is guided outward in the vehicle width direction, and therefore the traveling wind may not be sufficiently introduced into the center portion in the vehicle width direction in the space behind the windshield. In this case, the generation of negative pressure is not sufficiently suppressed in the space in front of the head of the occupant, and there is a possibility that the back pressure acting on the occupant cannot be reduced. Therefore, in a saddle-ride type vehicle having a windshield at a front portion of the vehicle, there is a problem that the action of back pressure on an occupant is reduced and generation of wind noise is suppressed.

Therefore, the present invention provides a wind-proof structure capable of reducing the effect of back pressure on a passenger and suppressing the generation of wind noise in a saddle-ride type vehicle having a windshield in the front of the vehicle.

Means for solving the problems

The utility model discloses a wind-proof structure of straddle type vehicle of first scheme possesses: a meter shade (60) that covers the meter (50) from above; a windshield (70) disposed above the meter visor (60); an air guide member (80) that is disposed between the dash panel (60) and the windshield (70), and that forms an air guide path (83) between the vehicle width center (C) of the vehicle and the upper surface (61) of the dash panel (60), the air guide path (83) extending in a predetermined direction (X) that is inclined with respect to the vehicle width direction and the vehicle vertical direction; and a protrusion (90) that protrudes from the meter visor (60) behind the air guide passage (83) in the predetermined direction (X).

According to the wind-proof structure for a saddle-ride type vehicle of the first aspect, the wind guide path is provided at the center of the width of the vehicle, and therefore, it is possible to suppress insufficient introduction of the wind into the center portion in the vehicle width direction in the space behind the wind deflector. Further, the traveling wind rectified by the wind guide path can be blown to the convex portion. Therefore, the traveling wind that has hit the convex portion can be suppressed from spreading in the vehicle width direction and hindering the introduction of the traveling wind into the center portion in the vehicle width direction in the space behind the windshield, and the directivity of the flow in the space behind the windshield can be reduced by introducing the turbulent flow into the space behind the windshield by the convex portion. With this, the back pressure to the occupant can be reduced, and the generation of wind noise can be suppressed.

A wind-proof structure for a saddle-ride type vehicle according to a second aspect of the present invention is the wind-proof structure for a saddle-ride type vehicle according to the first aspect, wherein the convex portion (90) is formed so as to gradually increase in height in a direction orthogonal to the prescribed direction (X) along the prescribed direction (X) from a front end portion (90 f) of the convex portion (90) toward an intermediate portion.

According to the wind prevention structure for a saddle-ride type vehicle of the second aspect, the pressure change of the traveling wind around the front portion of the convex portion can be made gentle, and the generation of wind noise at the convex portion can be suppressed. In addition, compared to a structure in which the height gradually decreases from the front end portion toward the rear end portion of the convex portion, the height can be sharply decreased from the front to the rear at the rear portion of the convex portion. This can reliably generate turbulence on the downstream side of the convex portion.

The utility model discloses a wind-proof structure of straddle type vehicle of third scheme is on the basis of the wind-proof structure of straddle type vehicle of above-mentioned second scheme, convex part (90) are in on specified direction (X) preceding tip (90 f) with possess between rear end portion (90 r) of convex part (90) high top (90 a).

According to the wind prevention structure for a saddle-ride type vehicle of the third aspect, the change in pressure of the traveling wind around the convex portion can be made more gradual than in a structure in which the top portion of the convex portion is provided at the rear end portion of the convex portion.

A wind-proof structure for a saddle-ride type vehicle according to a fourth aspect of the present invention is the wind-proof structure for a saddle-ride type vehicle according to any one of the first to third aspects, wherein the convex portion (90) is formed so as to gradually increase in width in the vehicle width direction along the predetermined direction (X) from a front end portion (90 f) of the convex portion (90) toward the intermediate portion.

According to the wind prevention structure for a saddle-ride type vehicle of the fourth aspect, the pressure change of the traveling wind around the front portion of the convex portion can be made gentle, and the generation of wind noise at the convex portion can be suppressed. Further, compared to a structure in which the width gradually decreases from the front end portion toward the rear end portion of the convex portion, the width can be rapidly decreased toward the rear from the front at the rear portion of the convex portion. This can reliably generate turbulence on the downstream side of the convex portion.

The utility model discloses a wind-proof structure of straddle type vehicle of fifth aspect on the basis of the wind-proof structure of straddle type vehicle of any one of above-mentioned first aspect to fourth aspect, wind-proof structure of straddle type vehicle possesses in convex part (90) about a pair of side convex part (91), about a pair of side convex part (91) for the vehicle width center (C) of vehicle in the vehicle width direction symmetrical arrangement, it is a pair of side convex part (91) extend along the fore-and-aft direction of vehicle under observing from the top respectively.

According to the wind shield structure for a saddle-ride type vehicle of the fifth aspect, the traveling wind blowing on the pair of left and right convex portions can be guided rearward along the direction in which the convex portions extend. This can more reliably suppress the travel wind from spreading in the vehicle width direction.

The wind-proof structure of a saddle-ride type vehicle according to a sixth aspect of the present invention is based on the wind-proof structure of the saddle-ride type vehicle according to any one of the first to fifth aspects, wherein the convex portion (90) overlaps with the opening on the downstream side of the air guide passage (83) in the vehicle width direction.

According to the wind-proof structure for a saddle-ride type vehicle of the sixth aspect, since the traveling wind passing through the wind guide path can be blown to the convex portion, turbulence can be reliably generated on the downstream side of the convex portion.

The utility model discloses a wind-proof structure of straddle type vehicle of seventh scheme is on the basis of the wind-proof structure of straddle type vehicle of any scheme in above-mentioned first scheme to the sixth scheme, the wind-proof structure of straddle type vehicle possesses: a pair of left and right side convex portions (91) of the convex portions (90) that are symmetrically arranged in the vehicle width direction with respect to a vehicle width center (C) of the vehicle; and a central convex portion (92) of the convex portions (90) that is disposed on the air duct (83) side of the pair of side convex portions (91) in the vehicle width center (C).

According to the wind-proof structure for a saddle-ride type vehicle of the seventh aspect, the pair of left and right convex portions and the central convex portion are arranged in the V shape, and therefore, the wind-proof structure can be designed to have excellent design properties.

Effect of the utility model

According to the wind-proof structure of the saddle-ride type vehicle described above, in the saddle-ride type vehicle having the windshield at the front portion of the vehicle, it is possible to reduce the action of back pressure on the occupant and suppress the generation of wind noise.

Drawings

Fig. 1 is a left side view of a motorcycle according to an embodiment.

Fig. 2 is a view showing a cross section perpendicular to the vehicle width direction and passing through the center of the vehicle width in the motorcycle according to the embodiment.

Fig. 3 is a perspective view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front and the top.

Fig. 4 is a perspective view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front left.

Fig. 5 is a perspective view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front and the top.

Fig. 6 is a perspective view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front and the top.

Fig. 7 is a front view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the directions such as front-back, up-down, left-right, and the like are the same as those of the vehicle described below. That is, the vertical direction coincides with the vertical direction, and the horizontal direction coincides with the vehicle width direction. In the drawings used in the following description, arrow UP indicates the upward direction, arrow FR indicates the forward direction, and arrow LH indicates the left direction.

First, a brief configuration of the entire motorcycle of the embodiment will be described.

Fig. 1 is a left side view of a motorcycle according to an embodiment.

As shown in fig. 1, a motorcycle 1 of the present embodiment is a scooter type straddle-type vehicle having a bottom step 12 for placing a foot of an occupant seated in a seat 11. The motorcycle 1 includes a vehicle body frame 2, a front wheel 3 supported on the vehicle body frame 2 so as to be steerable, a swing-type power unit 4 supported on the vehicle body frame 2 so as to be swingable up and down, a rear wheel 5 supported on the power unit 4, and a vehicle body cover 6 forming an outer contour of the vehicle.

The body frame 2 includes a head pipe 21, a down frame 22, a pair of left and right lower frames 23, a pair of left and right sub frames 24, and a pair of left and right rear frames 25. The head pipe 21 is provided at the front end of the frame 2. The down frame 22 extends downward and rearward from the head pipe 21. The pair of lower frames 23 extend rearward from the lower end portions of the down frames 22. A pair of sub-frames 24 connect the down frame 22 with the pair of lower frames 23. The pair of rear frames 25 extend rearward and upward from the pair of sub-frames 24, and are supported by rear end portions of the pair of lower frames 23.

The front wheel 3 is pivotally supported at the lower end portions of a pair of left and right front forks 31. The upper ends of the pair of front forks 31 are connected by a bottom bridge 32 extending in the vehicle width direction. The front fork 31 is rotatably supported by the head pipe 21 via a steering rod 33 fixed to the bottom bridge 32. A steering handle 34 is attached to an upper portion of the steering rod 33.

The power unit 4 is supported by the lower frame 23. The power unit 4 drives the rear wheels 5 as driving wheels. The power unit 4 includes an engine 4a as an internal combustion engine and a transmission 4b for transmitting a driving force generated by the engine 4a to the rear wheels 5.

The vehicle body cover 6 includes an upper cover 41, a front body cover 42, a center tunnel 43, a floor 44, a rear body cover 45, and a undercover 46. The upper cover 41 covers a central portion in the vehicle width direction of the handlebar 34. The front body cover 42, the center tunnel 43, the floor 44, the rear body cover 45, and the undercover 46 cover the vehicle frame 2. The front body cover 42 covers the head pipe 21. The center tunnel 43 extends rearward from the rear portion of the front body cover 42 in the vehicle width center C (see fig. 3) of the vehicle, and covers the down frames 22 and the sub-frames 24 from the side and above. The bottom plate 44 extends rearward in both side directions of the center tunnel 43 at the lower end portion of the front body cover 42, and covers the lower frame 23 from above. The bottom plate 44 constitutes the bottom step plate 12. The rear body cover 45 is connected to a rear end of the center tunnel 43 and a rear end of the bottom plate 44, and covers the rear frame 25 below the seat 11. The bottom cover 46 is disposed below the center tunnel 43 and the bottom plate 44, and covers the lower frame 23 from below.

Next, the structure of the vehicle front portion will be described in detail.

As shown in fig. 1 and 2, the vehicle front portion is provided with: a meter 50 disposed above the front body cover 42 and in front of the handlebar 34; a meter visor 60 covering the meter 50 from the front upper side; a damper 70 disposed above the meter visor 60; a windshield cover 75 that covers the front lower end 70a of the windshield 70 from the front upper side; and a wind guide member 80 disposed between the meter visor 60 and the windshield 70. In the present embodiment, the meter visor 60, the windshield 70, the windshield cover 75, and the wind guide member 80 are formed symmetrically with respect to the vehicle width center C. The "front upper side" is a direction orthogonal to both the extending direction of the recess 62 and the vehicle width direction described later.

As shown in fig. 2, the meter visor 60 overlaps the upper end edge 42a of the front body cowl 42 at the front end portion 60a of the meter visor 60, and protrudes rearward and upward from the meter 50. An upper surface 61 of the dash panel 60 extends upward from a front end 60a of the dash panel 60 toward a rear end in a cross section orthogonal to the vehicle width direction.

Fig. 3 is a perspective view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front and the top. Fig. 3 illustrates a state in which the windshield 70 and the windshield cover 75 are removed.

As shown in fig. 3, a recessed portion 62 extending along the vehicle width center C is formed on an upper surface 61 of the dash panel 60. The concave portion 62 extends in a predetermined direction inclined vertically with respect to the front-rear direction along the direction in which the upper surface 61 of the meter visor 60 extends. That is, concave portion 62 extends in a direction inclined with respect to the vehicle width direction and the vertical direction, and concave portion 62 extends rearward and upward from front lower end portion 62a of concave portion 62 to reach rear upper end portion 62b. The recess 62 extends with a substantially constant width from the front end portion 60a of the meter visor 60 to the rear edge. The recess 62 is provided with a bulge 63 described later. Hereinafter, the extending direction of the concave portion 62 is denoted by symbol X.

As shown in fig. 2, the windshield 70 shields the traveling wind toward the driver when the motorcycle 1 travels forward. The windshield 70 is formed in a thin plate shape by a transparent resin material. The damper 70 extends rearward and upward from a front lower end 70a of the damper 70 to a rear upper end in a cross section orthogonal to the vehicle width direction. The windshield 70 is disposed at a distance from the upper surface 61 of the meter visor 60 at least on the entire vehicle width center C.

Fig. 4 is a perspective view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front left. Fig. 5 is a perspective view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front and the top. In fig. 4, the windshield 70 and the windshield cover 75 are indicated by virtual lines. Fig. 5 illustrates a state in which the wind deflector cover 75 is removed.

As shown in fig. 4 and 5, the windshield 70 extends from a lower portion overlapping the meter visor 60 in a front view to a position above the meter visor 60. The damper 70 is curved so that a portion located further to the outside in the vehicle width direction is located further downward. The damper 70 is slidably supported by a pair of left and right rails 71.

The pair of rails 71 are disposed so as to sandwich the recessed portion 62 of the upper surface 61 of the dash panel 60 from the outside in the vehicle width direction in the front view. The pair of rails 71 are supported by the head pipe 21 (see fig. 2) via a rail bracket (not shown) that penetrates the meter visor 60. The pair of rails 71 are disposed along the upper surface 61 of the meter visor 60. The pair of rails 71 are arranged parallel to each other and extend linearly in the vertical direction in a front view. A slider 72 is disposed on each rail 71. Both side portions in the vehicle width direction in the lower portion of the windshield 70 are fastened to the sliders 72. Thereby, the windshield 70 is formed to be slidable with respect to the meter visor 60.

Fig. 6 is a perspective view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front and the top. Fig. 6 illustrates a state in which the wind shield cover 75 is removed.

The damper 70 moves in both directions between a lower limit position where the slider 72 is positioned at the lower end of the rail 71 as shown in fig. 5 and an upper limit position where the slider 72 is positioned at the upper end of the rail 71 as shown in fig. 6. The front lower end portion 70a of the windshield 70 overlaps the meter visor 60 as viewed from the front upward in a state where the windshield 70 is at any position between the lower limit position and the upper limit position.

As shown in fig. 2, the windshield cover 75 is disposed in front of and above the meter visor 60 and extends along the upper surface 61 of the meter visor 60. The windshield cover 75 is formed so as to cover the front lower end portion 70a of the windshield 70 from the outside in a state where the windshield 70 is located at any position between the lower limit position and the upper limit position. The windshield cover 75 extends over the boundary between the front body cover 42 and the meter visor 60 in the vehicle width center C in the front-upper direction, and overlaps the front body cover 42 and the meter visor 60 as viewed from the front-upper direction. The windshield cover 75 is disposed at a distance from the front body cover 42 and the meter visor 60 at the vehicle width center C. The front lower end portion 75a of the windshield cover 75 forms a traveling wind intake port 76 between the windshield cover 75 and the front body cover 42. The traveling wind intake port 76 takes in traveling wind between the windshield cover 75 and the meter visor 60.

Fig. 7 is a front view of a vehicle front portion of the motorcycle according to the embodiment as viewed from the front. Fig. 7 shows a state in which the damper 70 is at the upper limit position.

As shown in fig. 7, the windshield cover 75 overlaps the entirety of the pair of rails 71 (only the upper portion is shown in fig. 7) in front view. The windshield cover 75 overlaps the slider 72 in a front view in a state where the windshield 70 is located at any position between the lower limit position and the upper limit position. The windshield cover 75 is made of a material having lower light transmittance than the windshield 70, and thus covers the rail 71 and the slider 72 from the outside so as not to be visible.

As shown in fig. 6, the air guide member 80 is joined to the upper surface 61 of the dash panel 60 at the vehicle width center C. The air guide member 80 is disposed between the pair of rails 71. The air guide member 80 extends along the extending direction X of the concave portion 62 in the upper surface 61 of the meter visor 60. The air guide member 80 includes: a body 81 formed in a U-shape in cross section and opening to the upper surface 61 of the meter visor 60; and a pair of flange portions 82 extending outward in the vehicle width direction from the opening edge of the main body portion 81. The flange portion 82 overlaps a portion of the upper surface 61 of the dash panel 60 that is located outward in the vehicle width direction from the recessed portion 62. Thereby, the air guide member 80 forms a closed cross section together with the meter visor 60, and an air guide passage 83 extending along the extending direction X of the concave portion 62 is formed between the main body 81 and the concave portion 62 of the upper surface 61 of the meter visor 60.

As shown in fig. 2, the wind guide member 80 is disposed at a position overlapping the windshield cover 75 when viewed from the front upward. The lower front end 80a of the wind guide member 80 opens forward and downward toward the traveling wind intake port 76. The rear upper end portion 80b of the air guide member 80 opens rearward and upward toward the space between the meter visor 60 and the windshield 70. Thus, the wind guide member 80 guides the traveling wind, which is taken in from the traveling wind intake port 76 to the rear of the windshield cover 75, to the space between the meter visor 60 and the windshield 70 through the wind guide passage 83. At this time, the traveling wind passing through the wind guide passage 83 flows rearward and upward along the extending direction X of the concave portion 62. A lower front end 80a of the air guide member 80 protrudes forward and downward from between the meter visor 60 and the windshield 70 at the lower limit position (see fig. 5). The upper wall of the body 81 is bent forward at the front lower end 80a of the air guide member 80 so as to be separated from the meter visor 60 as it approaches the upstream opening of the air guide passage 83. The rear upper end 80b of the air guide member 80 is located forward and downward of the windshield 70 at the upper limit position. Fig. 2 shows a state in which the damper 70 is at the upper limit position.

As shown in fig. 3, a ridge 63 is provided on the bottom surface of the recess 62 in the upper surface 61 of the meter visor 60. The ridge portion 63 extends along the extending direction X of the recessed portion 62 at the center portion in the vehicle width direction of the bottom surface of the recessed portion 62. That is, the raised portion 63 extends rearward and upward from the front lower end 63a of the raised portion 63 to reach the rear upper end 63b of the raised portion 63. The ridge portion 63 extends at the vehicle width center C. The ridge portion 63 extends with a constant width except for both

end portions

63a, 63b. The top surface 64 of the ridge portion 63 is formed in a flat surface parallel to the bottom surface of the recess 62 except for both

end portions

63a, 63b of the ridge portion 63. The top surface 64 of the ridge portion 63 is curved so as to approach the bottom surface of the recess 62 at both

end portions

63a, 63b of the ridge portion 63, and is connected to the bottom surface of the recess 62. The front lower end 63a of the raised portion 63 is located rearward and upward from the front lower end 62a of the recessed portion 62. The lower front end 63a of the raised portion 63 protrudes forward and downward from the air guide member 80. The rear upper end 63b of the ridge 63 is located forward and downward of the rear upper end 62b of the recess 62. The rear upper end 63b of the bulging portion 63 protrudes rearward and upward from the air guide member 80.

A plurality of convex portions 90 protruding from the upper surface 61 are arranged on the meter visor 60. Boss 90 is integrally formed with meter visor 60. Convex portion 90 is disposed at a position facing windshield 70 on upper surface 61 of meter visor 60. The entirety of the convex portion 90 is located outside the air guide passage 83. The convex portion 90 is disposed rearward of the air guide member 80 in the extending direction X of the concave portion 62. The rear side in the extending direction X refers to a direction that forms an angle smaller than 90 ° with respect to the rear side, of two directions that are parallel to the extending direction X and face opposite to each other. The convex portion 90 is disposed at a position covered from the outside by the windshield 70 and not covered from the outside by the windshield cover 75 (see fig. 6 and 7 as well). This allows projection 90 to be visually recognized from the front and upward through windshield 70. The convex portion 90 overlaps with the opening on the downstream side of the air guide passage 83 in the vehicle width direction. More specifically, the entirety of each convex portion 90 overlaps with the downstream-side opening of the air guide passage 83 when viewed in the extending direction X of the concave portion 62.

The plurality of projections 90 include: a pair of left and right side convex portions 91 symmetrically arranged in the vehicle width direction with respect to the vehicle width center C; and a center convex portion 92 disposed at the vehicle width center C. The pair of left and right side convex portions 91 are disposed at both sides in the vehicle width direction of the bottom surface of the concave portion 62 with the ridge portion 63 interposed therebetween. The central protrusion 92 is disposed on the top surface 64 of the raised portion 63. The plurality of projections 90 are arranged at the same height in front view (see fig. 7). The central convex portion 92 is disposed on the top surface 64 of the raised portion 63, and thus is positioned closer to the air guide passage 83 than the pair of left and right side convex portions 91. In the present embodiment, the plurality of convex portions 90 are formed in the same shape.

The convex portion 90 extends in the front-rear direction when viewed from above. Specifically, the convex portion 90 is formed such that the dimension in the extending direction X is larger than the dimension in the vehicle width direction when viewed from the front upper side. The convex portions 90 are formed symmetrically in the vehicle width direction. Convex portion 90 is formed such that the width in the vehicle width direction gradually increases from a front end portion 90f of convex portion 90 toward an intermediate portion along extending direction X of concave portion 62. Convex portion 90 is formed so as to decrease in the vehicle width direction from the intermediate portion toward rear end portion 90r of convex portion 90 along extending direction X of concave portion 62. The intermediate portion includes not only a position at which the distances from both ends are the same, but also an inner range between both ends.

As shown in fig. 4, convex portion 90 is formed so that the height in the direction orthogonal to extending direction X of concave portion 62 as viewed in the vehicle width direction along extending direction X of concave portion 62 gradually increases from front end portion 90f toward the intermediate portion. Specifically, convex portion 90 includes a top portion 90a having the highest height in the direction orthogonal to extending direction X of concave portion 62 between front end portion 90f and rear end portion 90r in extending direction X of concave portion 62. Thus, the convex portion 90 is formed so that the height gradually decreases from the top portion 90a toward the rear end portion 90r along the extending direction X of the concave portion 62. However, the portion of convex portion 90 having the largest width in the vehicle width direction may not coincide with apex portion 90a in extending direction X of concave portion 62. The front end portion 90f is a portion of the convex portion 90 located at the front end in the extending direction X of the concave portion 62, and the rear end portion 90r is a portion of the convex portion 90 located at the rear end in the extending direction X of the concave portion 62.

As described above, the wind-proof structure of the motorcycle 1 according to the present embodiment includes: an air guide member 80 disposed between the meter visor 60 and the windshield 70, and forming an air guide passage 83 extending along the extending direction X of the concave portion 62 between the vehicle width center C and the upper surface 61 of the meter visor 60; and a convex portion 90 that protrudes from the meter visor 60 at a position rearward of the air guide passage 83 in the extending direction X of the concave portion 62. According to this configuration, since the air guide passage 83 is provided at the vehicle width center C, it is possible to suppress insufficient introduction of the air into the vehicle width direction center portion of the space behind the running wind damper 70. Further, the traveling wind rectified by the wind guide path 83 can be blown to the convex portion 90. Therefore, the traveling wind blowing on the convex portion 90 is suppressed from spreading in the vehicle width direction and hindering the introduction of the traveling wind into the center portion in the vehicle width direction in the space behind the windshield 70, and the convex portion 90 can introduce turbulence into the space behind the windshield 70 and weaken the directivity of the flow in the space behind the windshield 70. With this, the effect of back pressure on the occupant can be reduced, and the generation of wind noise can be suppressed.

The convex portion 90 is formed so that the height in the direction orthogonal to the extending direction X of the concave portion 62 along the extending direction X of the concave portion 62 gradually increases from the distal end portion 90f toward the intermediate portion. According to this configuration, the pressure change of the traveling wind around the front portion of convex portion 90 can be made gentle, and the generation of wind noise at convex portion 90 can be suppressed. Further, the height can be sharply reduced from the front to the rear at the rear of the convex portion 90, compared to a structure in which the height gradually decreases from the front end to the rear end of the convex portion. This can reliably generate turbulence on the downstream side of the convex portion 90.

Convex portion 90 includes a top portion 90a having the highest height between front end portion 90f and rear end portion 90r in extending direction X of concave portion 62. According to this configuration, the pressure change of the traveling wind around convex portion 90 can be made more gradual than the configuration in which the convex portion center top portion is provided at the rear end portion.

The convex portion 90 is formed such that the width in the vehicle width direction gradually increases along the extending direction X of the concave portion 62 from the front end portion 90f toward the intermediate portion. According to this configuration, the pressure change of the traveling wind around the front portion of convex portion 90 can be made gentle, and the generation of wind noise at convex portion 90 can be suppressed. Further, the width can be sharply reduced from the front to the rear at the rear of the convex portion 90, compared to a structure in which the width gradually decreases from the front end to the rear end of the convex portion. This can reliably generate turbulence on the downstream side of the convex portion 90.

The pair of left and right side convex portions 91 extend in the front-rear direction when viewed from above. According to this configuration, the traveling wind blowing against the pair of left and right side convex portions 91 can be guided rearward along the direction in which the side convex portions 91 extend. This can more reliably suppress the travel wind from spreading in the vehicle width direction.

The plurality of convex portions 90 overlap with the opening on the downstream side of the air guide passage 83 in the vehicle width direction. According to this configuration, the traveling wind having passed through the air guide passage 83 can be blown to the convex portion 90, and thus turbulence can be reliably generated on the downstream side of the convex portion 90.

The plurality of projections 90 include: a pair of left and right side convex portions 91 arranged symmetrically in the vehicle width direction with respect to the vehicle width center C; and a central convex portion 92 located closer to the air duct 83 than the pair of left and right side convex portions 91 in the vehicle width center C. According to this structure, since the plurality of convex portions 90 are arranged in a V shape, a wind-proof structure having excellent design properties can be obtained.

The air guide member 80 protrudes forward and downward from between the meter visor 60 and the windshield 70 at the lower limit position. With this configuration, the traveling wind guide passage 83 before flowing into the space between the meter visor 60 and the damper 70 can be guided regardless of the position of the damper 70. Therefore, the variation in the air volume of the traveling wind passing through the air duct 83 due to the position of the damper 70 can be suppressed. Therefore, the traveling wind can be stably introduced into the center portion in the vehicle width direction in the space behind the windshield 70.

The present invention is not limited to the above-described embodiments described with reference to the drawings, and various modifications are considered within the technical scope thereof.

For example, although the above-described embodiment shows an example in which the wind-proof structure of the present invention is applied to a scooter type straddle-type vehicle, the present invention can be applied to all straddle-type vehicles in which a driver rides over a vehicle body. That is, the structure of the above embodiment may be combined with a motorcycle type motorcycle without a bottom pedal, a three-wheeled motor vehicle, or the like.

In the above embodiment, the plurality of convex portions 90 are provided, but the present invention is not limited thereto, and only one convex portion may be provided. The arrangement of the plurality of convex portions 90 is not limited to the above embodiment, and for example, the central convex portion may be arranged at the same position as the pair of left and right convex portions in the extending direction X of the concave portion 62. Alternatively, only a pair of left and right convex portions may be provided without providing the central convex portion. In the above embodiment, the convex portion 90 is formed integrally with the meter visor 60, but the present invention is not limited thereto, and a convex portion formed as a member different from the meter visor may be coupled to the meter visor.

In the above embodiment, although apex 90a of convex portion 90 is provided at the intermediate portion in extending direction X of concave portion 62, the present invention is not limited thereto. That is, the convex portion may be formed so that the height thereof gradually increases along the extending direction X of the concave portion 62 at least toward the intermediate portion from the front end portion, and the apex portion may be provided at the rear end portion of the convex portion.

However, the shape of the projection is not limited to the shape of the above embodiment or a shape similar thereto, and may be changed as appropriate. The steeper the side surface of the convex portion rises with respect to the upper surface of the meter visor, the more rapidly the force with respect to the change in the roll direction and the yaw direction of the vehicle changes. On the other hand, by gently raising the side surface of the convex portion with respect to the upper surface of the meter visor, the force with respect to the change in the roll direction and the yaw direction of the vehicle can be linearly changed.

In the above embodiment, the raised portion 63 is provided in the recessed portion 62 of the upper surface 61 of the meter visor 60, but the present invention is not limited thereto. That is, the raised portion may not be provided in the recessed portion of the meter visor. Further, no recess may be formed on the upper surface of the meter visor. That is, an air guide passage may be formed between the upper surface of the meter visor extending in a planar or convexly curved shape and the air guide member.

In the above embodiment, the air guide member 80 is located forward and downward of the windshield 70 at the upper limit position. That is, the air guide member 80 is disposed between the meter light-shielding plate 60 and the windshield 70 only in a state where the windshield 70 is at a position of a part of the movable range. However, the present invention is not limited to this, and the air guide member may be disposed between the meter visor 60 and the windshield 70 regardless of the position of the movable range of the windshield 70. The present invention can also be applied to a straddle-type vehicle having a fixed windshield.

In addition, the components in the above-described embodiments may be replaced with known components as appropriate without departing from the scope of the present invention.

Description of the symbols:

1. motor bicycle (straddle type vehicle)

50. Instrument and meter

60. Instrument light screen

61. Upper surface of

70. Wind screen

80. Wind guide member

83. Air guide path

90. Convex part

90a top

90f front end

Rear end of 90r

91. Side convex part

92. Center convex part

C vehicle width center

X extending direction (predetermined direction) of concave part

Claims

1. A wind-proof structure of a saddle-ride type vehicle,

the wind-proof structure of the saddle-ride type vehicle comprises:

a meter shade (60) that covers the meter (50) from above;

a windshield (70) disposed above the meter visor (60);

an air guide member (80) that is disposed between the dash panel (60) and the windshield (70), and that forms an air guide path (83) between the vehicle width center (C) of the vehicle and the upper surface (61) of the dash panel (60), the air guide path (83) extending in a predetermined direction (X) that is inclined with respect to the vehicle width direction and the vehicle vertical direction; and

and a protrusion (90) that protrudes from the meter visor (60) behind the air guide passage (83) in the predetermined direction (X).

2. The wind-proof structure of a straddle-type vehicle according to claim 1,

the protruding portion (90) is formed so that the height in a direction perpendicular to the predetermined direction (X) gradually increases from the distal end portion (90 f) of the protruding portion (90) toward the middle portion along the predetermined direction (X).

3. The wind prevention structure of a straddle-type vehicle according to claim 2,

the protruding portion (90) has a top portion (90 a) having the highest height between the front end portion (90 f) and a rear end portion (90 r) of the protruding portion (90) in the predetermined direction (X).

4. The windproof structure for a saddle-ride type vehicle according to any one of claims 1 to 3,

the protruding portion (90) is formed so that the width in the vehicle width direction gradually increases from the front end portion (90 f) of the protruding portion (90) toward the middle portion along the predetermined direction (X).

5. The windproof structure for a straddle-type vehicle according to any one of claims 1 to 4, characterized in that,

the wind-proof structure of the straddle-type vehicle is provided with a pair of left and right side convex parts (91) in the convex parts (90), the pair of left and right side convex parts (91) are symmetrically arranged in the vehicle width direction relative to the vehicle width center (C) of the vehicle,

the pair of side convex portions (91) extend in the front-rear direction of the vehicle when viewed from above.

6. The windproof structure for a saddle-ride type vehicle according to any one of claims 1 to 5,

the convex portion (90) overlaps with the opening on the downstream side of the air duct (83) in the vehicle width direction.

7. The windproof structure for a saddle-ride type vehicle according to any one of claims 1 to 6,

the wind-proof structure of the saddle-ride type vehicle comprises:

a pair of left and right side convex portions (91) of the convex portions (90) that are symmetrically arranged in the vehicle width direction with respect to a vehicle width center (C) of the vehicle; and

and a central convex portion (92) of the convex portions (90) that is disposed closer to the air duct (83) than the pair of side convex portions (91) in the vehicle width center (C).