JP6743085B2 - Variable aerodynamic structure for saddle type vehicles - Google Patents

Description

The present invention relates to a variable aerodynamic characteristic structure for a saddle type vehicle.

2. Description of the Related Art Conventionally, there has been known one in which running wind is applied so as to stick to the surfaces of a cowling and a screen to improve aerodynamic characteristics (for example, refer to Patent Document 1).

Japanese Patent No. 3245921

In Cited Document 1, although the restraint force of the vehicle body can be obtained by the traveling wind sticking to the cowling and the screen, if the restraint force is strong, it is difficult to obtain the lightness of steering when turning the vehicle.
An object of the present invention is to provide a structure for varying the aerodynamic characteristics of a saddle type vehicle capable of reducing the restraining force of the vehicle body due to the running wind.

The present invention is a flat surface (52f, 52 g) forming a downforce surface and cowling (51) which is provided, detecting unit for detecting a vehicle body turning (64), the control unit for controlling the vehicle aerodynamics ( 66) and met aerodynamic characteristic variable structure for a saddle type vehicle provided with the flat surface of the cowling (51) (52f, vibrator (71A on the back surface of 52g), 71B, 71C, 71D , 71E, 71F) is is installed, the control unit (66), said vibrating body on the basis of the turning signal outputted from the detection unit (64) (71A, 71B, 71C, 71D, 71E, 71F) that you control the vibration of the Characterize.

In the above invention, a plurality of flat surfaces (52f, 52g) of the cowling (51) are provided from the front end to the rear of the cowling (51), and the vibrating body (71A, 71B, 71C, 71D, 71E, 71F). ) May be provided at least one on each of the plurality of flat surfaces (52f, 52g).
Further, in the above invention, the flat surface (52g) on the outer side in the vehicle width direction is integrated at the front end side of the cowling (51) and is at least one on the vehicle body center line (80) extending forward and backward at the center in the vehicle width direction. One of the vibrating bodies (71A, 71D) may be provided.

Further, in the above invention, the vibrating bodies (71B, 71C) on the outer side in the vehicle width direction are arranged on the left and right of the vibrating body (71A) on the vehicle body center line (80), and on the vehicle body center line (80). In the vibrating body (71A), the front ends of the left and right vibrating bodies (71B, 71C) may be located in front of the front ends.
Further, in the above invention, the vibrating body (71E, 71F) on the outer side in the vehicle width direction is disposed on the left and right of the vibrating body (71D) on the vehicle body center line (80), and the left and right vibrating bodies (71E, 71E, 71F) and the vibrating body (71D) on the vehicle body center line (80) may be arranged in a straight line in the vehicle width direction in a plan view of the vehicle.

Further, in the above invention, the vibrating body (71A, 71B, 71C, 71D , 71E, 71F) is not good be made of a rotary member provided with a weight (76) to the outer peripheral portion.

According to the present invention, since the vibrating body is installed on the back surface of the flat surface of the cowling, by vibrating the flat surface by the vibrating body, traveling wind is separated from the surface of the cowling including the flat surface to restrain the vehicle body. Power can be reduced. As a result, the vehicle body can be easily tilted to the left and right, and the turning performance of the vehicle can be improved.
In the above invention, a plurality of flat surfaces of the cowling are provided from the front end to the rear of the cowling, and at least one vibrator is provided on each of the plurality of flat surfaces. By disposing, the traveling wind can be effectively separated from the surface of the cowling.

Further, in the above invention, the flat surface on the outer side in the vehicle width direction is integrated on the front end side of the cowling, and at least one vibrating body is provided on the vehicle body centerline extending forward and backward at the center in the vehicle width direction. Is arranged on the center line of the vehicle body, the traveling wind can be separated on a flat surface in which the traveling wind flows to the left and right, so that the traveling wind can be effectively separated.
Further, in the above invention, the vibrating body on the outer side in the vehicle width direction is disposed on the left and right of the vibrating body on the vehicle body centerline, and the vibrating body on the vehicle body centerline has its front end located ahead of the front ends of the left and right vibrating bodies. Since the traveling wind can be separated by the vibrating body arranged on the center line of the vehicle body, and the traveling wind can be separated by the left and right vibrating bodies, the traveling wind can be effectively separated.

Further, in the above invention, since the left and right vibrating bodies and the vibrating body on the vehicle body center line are arranged in a straight line in the vehicle width direction, traveling wind can be separated in a wide range in the vehicle width direction.
Further, in the above invention, since the vibrating body is composed of the rotating member having the weight on the outer peripheral portion, the vibrating body can be configured with a simple structure and the weight increase can be suppressed even if the vibrating body is added.
Further, in the above invention, the saddle-ride type vehicle includes the detection unit that detects the turning of the vehicle body and the vibration instruction unit that vibrates the vibrating body based on the vehicle body turning detection signal output from the detection unit. The vibrating body can be automatically vibrated when the turning is started, and the vibration of the vibrating body can be automatically stopped when the turning traveling is changed to the straight traveling. In this way, it is possible to smoothly perform the transition from straight traveling to turning traveling and from turning traveling to straight traveling.

FIG. 1 is a left side view showing a motorcycle including a variable aerodynamic characteristic structure according to the first embodiment of the present invention. It is a perspective view showing the front part of a motorcycle. It is explanatory drawing explaining a vibration generator, FIG.3(A) is a perspective view which shows a vibration generator, and FIG.3(B) is a top view which shows a vibration generator. It is a top view which shows the vehicle body front part. FIG. 3 is a left side view showing a front portion of the vehicle body. It is a front view showing a vehicle body front part. It is a top view showing the front part of a motorcycle provided with the aerodynamic characteristic variable structure of a 2nd embodiment. It is a left side view showing a front part of a motorcycle provided with a variable aerodynamic characteristic structure of a 3rd embodiment.

An embodiment of the present invention will be described below with reference to the drawings. In the description, the directions such as front, rear, left, right and up and down are the same as the directions with respect to the vehicle body unless otherwise specified. Reference numeral FR shown in each drawing indicates the front side of the vehicle body, reference numeral UP indicates the upper side of the vehicle body, and reference numeral LH indicates the left side of the vehicle body.
<First Embodiment>
FIG. 1 is a left side view showing a motorcycle 10 including an aerodynamic characteristic variable structure according to a first embodiment of the present invention.
The motorcycle 10 is a saddle-ride type vehicle that includes front wheels 13, rear wheels 16 and a seat 17 and that a driver rides on the seat 17 to ride on.
The front wheels 13 are steerably supported on the front end of the vehicle body frame 11 via the front forks 12, the rear wheels 16 are swingably supported on the lower portion of the vehicle body frame 11 via swing arms 14, and the seat 17 is It is provided on the upper part of the body frame 11.

The vehicle body frame 11 includes a main frame portion 11A and a seat frame 25 extending rearward and obliquely upward from a rear portion of the main frame portion 11A.
The main frame portion 11A integrally 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 pair of left and right down frames 24.
The head pipe 21 is provided at the front end of the main frame portion 11A and supports the front fork 12 in a steerable manner. The left and right main frames 22 extend obliquely rearward and downward from the head pipe 21, and support the fuel tank 43 at the upper part. The left and right pivot frames 23 extend downward from the rear ends of the left and right main frames 22, and swingably support the swing arm 14 by a pivot shaft 46 passed in the vehicle width direction. The left and right down frames 24 extend downward from the lower portions of the left and right main frames 22, and support the engine 35 together with the left and right pivot frames 23.
The left and right seat frames 25 are fastened at their front ends to the left and right main frames 22 with fastening members 26 such as bolts and nuts, and extend obliquely rearward and upward from the left and right main frames 22 (seat 17a for driver and It supports the passenger seat 17b).

The front fork 12 has a fork shape and includes a pair of left and right fork pipes 27, a top bridge 28, a bottom bridge 29, and a steering shaft (not shown).
The fork pipe 27 is a telescopic shock absorber including an inner cylinder and an outer cylinder. The top bridge 28 connects the upper ends of the left and right fork pipes 27. The bottom bridge 29 is disposed below the top bridge 28 and connects the left and right fork pipes 27. The steering shaft is passed to the center portions of the top bridge 28 and the bottom bridge 29 in the vehicle width direction, inserted into the head pipe 21, and rotatably supported by the head pipe 21.
A handle 33 is attached to the upper portion of the top bridge 28, and the front wheels 13 are supported by the lower ends of the left and right fork pipes 27 via an axle 31.
The engine 35 includes a crankcase 36. The crankcase 36 is provided with a cylinder portion 37 extending obliquely upward and forward in a front portion and a transmission 38 in a rear portion. The output of the transmission 38 is transmitted to the rear wheels 16 via the chain 41. The swing arm 14 supports the rear wheel 16 via an axle 47 provided at the rear end.

The front part and the lower part of the motorcycle 10 are covered with a cowling 51. The cowling 51 includes an upper cowl 52, a pair of left and right middle cowls 53, and a pair of left and right lower cowls 54.
The upper cowl 52 covers the periphery of the headlight 56, and is provided with a windscreen 58 at the center of the upper part and a pair of rearview mirrors 59 on the left and right of the upper part. The middle cowl 53 extends rearward and downward from the vehicle width direction outer side of the upper cowl 52 and covers the vehicle body front portion from both sides. The lower cowl 54 covers the lower portion of the vehicle body including the engine 35.
The front wheel 13 is covered with a front fender 61 from above, and the rear wheel 16 is covered with a rear fender 62 from above.

The motorcycle 10 includes a turning detection sensor 64 that detects a turning of the vehicle body, and an ECU (Electronic Control Unit) 66 that controls the aerodynamic characteristics of the vehicle body based on a turning signal output from the turning detection sensor 64.
The turning detection sensor 64 includes an acceleration sensor, a bank angle sensor, and the like, and is arranged inside the cowling 51 behind the headlight 56. The ECU 66 is arranged below the driver's seat 17a and between the left and right seat frames 25. The ECU 66 specifically controls the generation/stop of vibration in the vibration generator 71, which will be described in detail later.

FIG. 2 is a perspective view showing a front portion of the motorcycle 10.
The upper cowl 52 is located above the headlight 56 and includes a light upper wall portion 52a in front of the lower edge 58b of the windscreen 58, and a plurality of vibration generators 71 are provided on the inner surface (back surface) of the light upper wall portion 52a. Is installed. The front upper surface 52b, which is the upper surface of the light upper wall portion 52a, is a flat surface or a surface that is close to a flat surface, and downforce is generated by the traveling wind hitting the front upper surface 52b of the light upper wall portion 52a, and the front wheel 13 Also, the pressing force of the rear wheel 16, particularly the front wheel 13, against the road surface increases.

The vibration generating device 71 vibrates the light upper wall portion 52a by running wind (laminar flow) flowing on the front upper surface 52b of the light upper wall portion 52a while the vehicle is traveling, thereby causing the front portion of the light upper wall portion 52a to vibrate. The upper surface 52b is peeled off. That is, turbulence is generated in the laminar flow along the front upper surface 52b. As a result, the restraining force (down force and lateral force) due to the running wind at the front of the vehicle body is reduced, and the course of the vehicle can be changed easily. In particular, when the vehicle turns, vibration is generated by the vibration generator 71, so that the turning performance of the vehicle can be improved.
The light upper wall portion 52a provided with the vibration generator 71 is a portion of the upper cowl 52 where the traveling wind is likely to hit strongly and the traveling wind is likely to be a laminar flow, or a flat shape closer to the flat shape. Therefore, the effect of separating the traveling wind due to the generation of vibrations in the vibration generator 71 is increased.
Here, for convenience of explanation, the plurality of vibration generators 71 are referred to as vibration generators 71A, 71B, 71C.

FIG. 3 is an explanatory diagram illustrating the vibration generator 71.
3A is a perspective view showing the vibration generator 71, and FIG. 3B is a plan view showing the vibration generator 71.
As shown in FIGS. 3A and 3B, a vibration generator 71 includes a case 72, a motor 73 provided at the center of the case 72, and an arm extending radially outward from a rotation shaft 73a of the motor 73. 74 and a weight 76 attached to the tip of the arm 74. A pair of conducting wires 77 extends from the motor 73, and the tip ends of the pair of conducting wires 77 are connected to a pair of terminals 72 a provided in the case 72. A connector 79 provided at the tip of a pair of conducting wires 78 for supplying electric power from the outside is detachably connected to the pair of terminals 72a.
By energizing the motor 73, the arm 74 and the weight 76 rotate together with the rotation shaft 73a of the motor 73. As a result, the change in the direction of the centrifugal force generated in the arm 74 and the weight 76 causes vibration in the direction along the plane in which the arm 74 and the weight 76 rotate.

As described above, since the vibration generators 71A, 71B, 71C as the vibrating body are composed of the rotating member provided with the weight 76 on the outer peripheral portion, the vibrating body is configured with a simple structure, and the vibration generators 71A, 71B are formed. , 71C can be added to suppress the increase in weight.

FIG. 4 is a plan view showing the front portion of the vehicle body.
A plurality of (here, three) vibration generators 71A, 71B, 71C are arranged in the vehicle width direction center of the upper cowl 52 and on the vehicle width direction outer side of the vehicle width direction center.
Here, the vibration generators located on the vehicle body center line 80 extending in the vehicle body front-rear direction through the center in the vehicle width direction are designated as 71A, and the vibration generator devices arranged on the left and right of the vehicle body center line 80 are designated as 71B and 71C. The vibration generators 71A, 71B, 71C are the same as the vibration generator 71. Reference numeral 71z is the front end of each of the vibration generators 71A, 71B, 71C.
The vibration generator 71A is arranged at the front end portion of the light upper wall portion 52a of the upper cowl 52. The vibration generators 71B and 71C have front ends 71z arranged rearward of the front end 71z of the vibration generator 71A, have the same distance from the vehicle body center line 80 in a plan view, and are arranged side by side in the vehicle width direction. That is, the vibration generators 71B and 71C are arranged symmetrically with respect to the vehicle body centerline 80 in a plan view. Specifically, the vibration generator 71A is arranged in front of the front ends of the vibration generators 71B and 71C. A straight line 75 indicated by a chain double-dashed line in the drawing extends in the vehicle width direction through the front ends of the vibration generators 71B and 71C.
The vibration generators 71B and 71C may be arranged so as to overlap the vibration generator 71A in the vehicle width direction in a plan view, or may be arranged so as not to overlap the vibration generator 71A in the vehicle width direction in a plan view. May be.

As shown by the arrow, the traveling wind hitting the front end 52z of the upper cowl 52 passes above the vibration generator 71A behind the front end 52z (the front widening surface 52f), flows rearward as it is, and is divided into left and right. Flowing. The left and right traveling winds pass above the vibration generators 71B and 71C (right and left front inclined surfaces 52g).
As described above, by disposing the plurality of vibration generators 71A, 71B, 71C at the apexes of the triangle in a plan view, the flow of the traveling wind separated from the front upper surface 52b of the upper cowl 52 by the vibration of the vibration generator 71A. Can be further separated by the rear vibration generators 71B and 71C. That is, the turbulence of the traveling wind generated by the vibration generator 71A can be further disturbed by the vibration generators 71B and 71C. As a result, the restraint force of the vehicle body due to the running wind can be further reduced.

FIG. 5 is a left side view showing the front part of the vehicle body, and FIG. 6 is a front view showing the front part of the vehicle body.
As shown in FIG. 5, the upper surface 52e of the upper cowl 52 extends obliquely upward and rearward from the front end 52x, and the upper surface 58a of the windscreen 58 extends obliquely upward and rearward at a steeper angle than the upper surface 52e of the upper cowl 52. There is.
The vibration generator 71A is arranged near the front end 52x and at the upper edge of the upper surface 52e. The vibration generators 71B and 71C (only the vibration generator 71C is illustrated) have a front end 71z arranged rearward of the front end 71z of the vibration generator 71A, and are arranged below and apart from the upper edge of the upper surface 52e.

As shown in FIG. 6, the upper cowl 52 includes a widened portion 52c that gradually expands outward in the vehicle width direction from the front end 52x toward the upper side, and a pair of left and right inclined portions that are inclined diagonally downward from both side edges of the widened portion 52c. 52d.
The widened portion 52c is provided with a flat front widened surface 52f formed in a triangular shape on the front side of the lower edge 58b of the windscreen 58. The left and right inclined portions 52d are provided with flat left and right front inclined surfaces 52g on the front side of the root portions 59a of the left and right rearview mirrors 59.
The front widening surface 52f and the front portions of the left and right front inclined surfaces 52g form a front upper surface 52b of the light upper wall portion 52a.
It can be said that the left and right inclined portions 52d are integrated with the front widening surface 52f at the center portion in the vehicle width direction by the left and right front inclined surfaces 52g on the front end side. The traveling wind also flows from the front widening surface 52f to the left and right front inclined surfaces 52g.

The widened portion 52c is provided with a vibration generating device 71A on the inner surface of the front end portion of the light upper wall portion 52a and a windscreen 58 on the upper portion. The widened portion 52c and the left and right inclined portions 52d are located above the headlight 56 in a front view. The left and right inclined portions 52d are provided with vibration generators 71B and 71C in which the front end 71z is located rearward of the front end 71z of the vibration generator 71A. Rearview mirrors 59 are attached to the upper portions of the left and right inclined portions 52d.
The cowling 51 is provided with a pair of left and right side protrusions 55 that are passed over the upper cowl 52 and the middle cowl 53 and protrude laterally.
The left and right side protrusions 55 are portions provided with ventilation portions 55a penetrating forward and backward behind the corners 56a provided at the left and right ends of the headlight 56.

The left and right middle cowls 53 are provided at their front portions with openings 53c for introducing air into the cowling 51.
By disposing the vibration generators 71A, 71B, 71C at the front end portion of the upper cowl 52 (position close to the front end 52x), the traveling wind can be separated from the surface of the upper cowl 52 as close to the front side of the upper cowl 52 as possible. .. As a result, the range (laminar flow range) in which the traveling wind flows along the upper cowl 52 can be made narrower. As a result, the restraint force of the vehicle body due to the running wind can be further suppressed, and the vehicle can be smoothly turned.

As shown in FIGS. 1, 4 and 6, the motorcycle 10 as a saddle-ride type vehicle includes a cowling 51, and the cowling 51 has a front widening surface 52f as a flat surface forming a downforce surface and A pair of right and left front inclined surfaces 52g is provided. The “flat surface” shown here includes a curved surface with small irregularities, and is a surface in which the air flow becomes a laminar flow.
In the aerodynamic characteristic variable structure of the motorcycle 10, vibration generators 71A, 71B, 71C as vibrators are installed on the rear surfaces of the front widening surface 52f and the left and right front inclined surfaces 52g of the cowling 51.
According to this configuration, by vibrating the front widening surface 52f and the left and right front inclined surfaces 52g by the vibration generators 71A, 71B, 71C, traveling wind is separated from the surface of the cowling 51, and the restraining force of the vehicle body is reduced. Can be made. As a result, the vehicle body can be easily tilted to the left and right, and the turning performance of the vehicle can be improved.

A plurality of flat surfaces of the cowling 51 (the front widening surface 52f and the left and right front inclined surfaces 52g) are provided from the front end of the cowling 51 to the rear, and the vibration generators 71A, 71B, 71C are flat surfaces. At least one front widening surface 52f and at least one left front inclined surface 52g are provided.
According to this configuration, by disposing the vibration generators 71A, 71B, 71C on the rear surfaces of the front widening surface 52f and the left and right front inclined surfaces 52g that receive the traveling wind, the traveling wind is effectively separated from the surface of the cowling 51. Can be made. Further, since the vibration generators 71A, 71B, 71C are not exposed to the outside, the appearance can be improved.

Further, the left and right front inclined surfaces 52g on the outer side in the vehicle width direction are integrated with the front widening surface 52f on the front end side of the cowling 51, and the rear surface of the front widening surface 52f on the vehicle body centerline 80 extending forward and backward in the center in the vehicle width direction. Is provided with at least one vibration generator 71A.
According to this configuration, by disposing the vibration generator 71A on the center line 80 of the vehicle body, the traveling wind can be separated on the left and right front inclined surfaces 52g where the traveling wind flows left and right from the front widening surface 52f. The wind can be effectively separated, and the restraint force of the vehicle body can be reduced.

Further, the vibration generators 71B and 71C on the outer side in the vehicle width direction are arranged on the left and right sides of the vibration generator 71A on the vehicle body center line 80, and the vibration generator 71A on the vehicle body center line 80 is arranged on the left and right sides. The front end 71z is located forward of the front end 71z of 71C.
According to this structure, the traveling wind is separated by the vibration generator 71A arranged on the vehicle body centerline 80, and the separated traveling wind is further separated from the surface by the left and right vibration generators 71B and 71C. Since it can be peeled off, the running wind can be effectively peeled off.

Further, as shown in FIG. 1, the motorcycle 10 is based on a turning detection sensor 64 as a detection unit that detects turning of the vehicle body, and a vehicle turning detection signal (turning signal) output from the turning detection sensor 64. The ECU 66 is provided as a vibration instruction unit that vibrates the vibration generators 71A, 71B, and 71C.
According to this configuration, the vibration generators 71A, 71B, 71C can be automatically vibrated when the vehicle starts to turn, and the vibration generators 71A, 71B, and 71C can be automatically vibrated when the vehicle changes from turning to straight running. The vibration of 71A, 71B, 71C can be stopped. In this way, it is possible to smoothly perform the transition from straight traveling to turning traveling and from turning traveling to straight traveling.

<Second Embodiment>
FIG. 7 is a plan view showing a front portion of a motorcycle 90 including the aerodynamic characteristic variable structure of the second embodiment.
The motorcycle 90 differs from the motorcycle 10 of the first embodiment shown in FIGS. 1 to 6 only in the arrangement of the vibration generator 71.
As shown in FIG. 7, a plurality (here, three) of vibration generators 71D, 71E, 71F are arranged at the vehicle width direction center of the upper cowl 52 and at the vehicle width direction outer side than the vehicle width direction center. .. Here, the vibration generators located on the vehicle body centerline 80 are 71D, and the vibration generators arranged on the left and right of the vehicle body centerline 80 are 71E and 71F. The vibration generators 71D, 71E, 71F are the same as the vibration generator 71.

The vibration generator 71D is arranged at the front end portion of the light upper wall portion 52a of the upper cowl 52 (position near the front end 52x of the upper cowl 52). The vibration generators 71E and 71F are aligned with the vibration generator 71D in the vehicle width direction in a plan view.
In this way, by arranging the plurality of vibration generators 71D, 71E, 71F in a straight line in the vehicle width direction in a plan view, the vibration of the vibration generators 71D, 71E, 71F causes the traveling wind from the upper surface 52e of the upper cowl 52. It is possible to secure a wider range for peeling. As a result, the restraint force of the vehicle body due to the running wind can be further reduced.

As described above, since the left and right vibration generators 71E and 71F and the vibration generator 71D on the vehicle body centerline 80 are arranged in a straight line in the vehicle width direction in the vehicle plan view, Can separate running wind in a wide range.

<Third Embodiment>
FIG. 8 is a left side view showing the front part of the motorcycle 100 including the variable aerodynamic characteristic structure of the third embodiment.
The motorcycle 100 differs from the motorcycle 10 of the first embodiment and the motorcycle 90 of the second embodiment shown in FIGS. 1 to 7 only in the arrangement of the vibration generator 71.
As shown in FIG. 8, a plurality of (here, two) vibration generators 71 are provided at the rear of the left and right middle cowls 53, specifically, at the front (notches) of a notch 53 a provided at the rear edge of the middle cowl 53. It is arranged on the inner side (back surface) of the portion close to the rear edge 53b of 53a.
Here, it is assumed that the plurality of vibration generators are 71G and 71H. The vibration generators 71G and 71H are the same as the vibration generator 71.

The rear edge 53b of the notch 53a is formed to be forwardly upward, and the upper vibration generator 71G is arranged below the vibration generator 71G (specifically, diagonally below the vibration generator 71G). It is located in front of the vehicle from 71H.
The vibration generators 71G and 71H are arranged in front of the main frame 22, the down frame 24, and the cylinder portion 37 in a side view. The vibration generator 71G is arranged below the bottom bridge 29 in a side view. Specifically, the vibration generator 71G is arranged obliquely below and rearward of the bottom bridge 29 in a side view. Further, the vibration generator 71H is arranged behind the front fender 61 in a side view.
When the vibration generators 71G, 71H are not vibrated, the left and right middle cowls 53 allow the traveling wind to flow along the surface of the middle cowls 53, thereby reducing the air resistance of the vehicle and increasing the maximum speed and straight ahead of the vehicle. It is possible to improve the sex.

Further, by disposing the plurality of vibration generators 71G and 71H described above in the middle cowl 53, when the vibration generators 71G and 71H are vibrated, traveling wind flowing along the surface of the middle cowl 53 is generated. Can be peeled off from the surface of. As a result, the restraining force (lateral force) generated in the vehicle width direction of the vehicle body by the traveling wind can be reduced, and the vehicle can be smoothly turned.
Further, by arranging the plurality of vibration generators 71G and 71H side by side obliquely with respect to the vertical direction, the separation of the traveling wind by the vibration generator 71G arranged in the front is arranged behind the vibration generator 71G. The traveling wind separation at the position of the vibration generator 71H can also be affected. That is, the traveling wind can be further separated by the vibration generator 71H, and the restraining force of the vehicle body by the traveling wind in the plurality of vibration generators 71G and 71H can be further reduced.

The embodiment described above merely shows one aspect of the present invention, and can be arbitrarily modified and applied without departing from the gist of the present invention.
For example, in the above embodiment, in the first embodiment shown in FIGS. 1 to 6 and the second embodiment shown in FIG. 7, the vibration generators 71A, 71B, 71C, 71D, 71E, 71F are attached to the upper cowl 52. In the third embodiment shown in FIG. 8, the vibration generators 71G and 71H are provided on the middle cowl 53, but the invention is not limited to this. For example, the vibration generator 71 may be provided on both the upper cowl 52 and the middle cowl 53, and at least one of the upper cowl 52 and the middle cowl 53 may vibrate.

Further, in the vibration generator 71 shown in FIG. 3, the vibration is generated in the direction along the plane on which the arm 74 and the weight 76 rotate, but the vibration is generated in the direction perpendicular to the plane on which the arm 74 and the weight 76 rotate. You may use the vibration generator which generate|occur|produces.
Further, as shown in FIG. 2, the vibration generators 71A, 71B, 71C are arranged in the upper cowl 52 on the light upper wall portion 52a in front of the lower edge 58b of the wind screen 58, but not limited to this. .. The vibration generator 71 may be arranged in the upper cowl 52 on the flat portion of the widened portion 52c and the inclined portion 52d behind the lower edge 58b of the windscreen 58.
The present invention is not limited to the case of being applied to the motorcycle 10, but can be applied to a saddle type vehicle including other than the motorcycle 10. Saddle-type vehicles include all vehicles that ride over the vehicle body, and include not only motorcycles (including bicycles with motors) but also three-wheel vehicles and four-wheel vehicles that are classified as ATV (vehicles running on rough terrain). It is a vehicle including.

10,90,100 motorcycle (saddle-type vehicle)
51 cowling 52f front widening surface (flat surface)
52g Front slope (flat surface)
64 Turn detection sensor (detection unit)
66 ECU (vibration indicator)
71, 71A, 71B, 71C, 71D, 71E, 71F Vibration generator (vibrating body)
76 Weight 80 Body center line

Claims (6)

Flat surface (52f, 52 g) forming a downforce surface and cowling is provided (51), detecting unit for detecting a vehicle body turning (64), the control unit for controlling the vehicle aerodynamics and (66) A structure for varying the aerodynamic characteristics of a saddle-ride type vehicle equipped with,
A vibrating body (71A, 71B, 71C, 71D, 71E, 71F) is installed on the back surface of the flat surface (52f, 52g) of the cowling (51), and the control unit (66) operates from the detection unit (64). the vibrating member based on the turning signal output (71A, 71B, 71C, 71D , 71E, 71F) aerodynamic characteristic variable structure for a saddle type vehicle to be controlled to said Rukoto vibrations. A plurality of flat surfaces (52f, 52g) of the cowling (51) are provided from the front end to the rear of the cowling (51), and the vibrating bodies (71A, 71B, 71C, 71D, 71E, 71F) are plural. The aerodynamic characteristic variable structure for a saddle-ride type vehicle according to claim 1, wherein at least one is provided on each of the flat surfaces (52f, 52g). The flat surface (52g) on the outer side in the vehicle width direction is integrated on the front end side of the cowling (51), and at least one of the vibrating body (71A) is located on the vehicle body centerline (80) extending forward and backward at the center in the vehicle width direction. , 71D) are provided. The aerodynamic characteristic variable structure for a saddle-ride type vehicle according to claim 2, wherein The vibrating body (71B, 71C) on the outer side in the vehicle width direction is disposed on the left and right of the vibrating body (71A) on the vehicle body centerline (80), and the vibrating body (71A) on the vehicle body centerline (80). 4), the front ends of the left and right vibrating bodies (71B, 71C) are located forward of the front ends of the vibrating body (71B, 71C). The vibrating bodies (71E, 71F) on the outer side in the vehicle width direction are arranged on the vehicle body center line (80) on the left and right sides of the vibrating body (71D),
The left and right vibrating bodies (71E, 71F) and the vibrating body (71D) on the vehicle body center line (80) are arranged in a straight line in the vehicle width direction in a plan view of the vehicle. Item 3. A variable aerodynamic characteristic structure for a saddle-ride type vehicle according to Item 3. The saddle according to any one of claims 1 to 5, wherein the vibrating body (71A, 71B, 71C, 71D, 71E, 71F) is composed of a rotating member having a weight (76) on an outer peripheral portion. Variable aerodynamic structure for riding type vehicles.

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