JP7280307B2 - saddle-riding vehicle - Google Patents

Description

The present invention relates to a saddle type vehicle.

Some motorcycles have a sari guard on the side of the rear wheel. This type of motorcycle sari guard is formed by assembling metal pipes in a grid pattern. Plate-shaped fixing parts are provided at intervals on the frame of the sari guard, and each fixing part is screwed to the motorcycle. He is trying to fix to a fender etc. (for example, patent document 1).

JP 2012-71644 A

By the way, it is desired that the rear wheel cover portion such as the sari guard is designed to cover a wide area, be light in weight, and have sufficient strength. However, the conventional structure combining metal pipes becomes heavy if the cover is simply enlarged. If the diameter of the metal pipe is reduced to keep the weight of the cover within the allowable range, the strength of the sari guard may be insufficient.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances described above, and an object of the present invention is to facilitate obtaining a rear wheel cover portion that is lightweight and has high strength.

A straddle-type vehicle comprising a swing arm connected to a vehicle body, a rear wheel supported by the swing arm, and a rear wheel cover portion covering at least an upper lateral side of the rear wheel, wherein the rear wheel cover portion includes: a metal frame member supported by the swing arm; and a resin cover supported by the frame member, wherein the resin cover is positioned outside the frame member in the vehicle width direction, and The cover is higher than the swing arm and larger than the frame member in front, back, and up and down directions, and the portion of the frame member that is above the swing arm and covers the side of the rear wheel is the resin cover. The frame member is arranged only in a region that is inside in the vehicle width direction and overlaps with the resin cover in the vehicle width direction. and a third straight portion extending downward from the rear end of the second straight portion, and the resin cover extends along the first straight portion when viewed from the side of the vehicle body. a first cover covering the first straight portion from the outside in the vehicle width direction, a second cover extending along the second straight portion and covering the second straight portion from the outside in the vehicle width direction when viewed from the side of the vehicle body; A third cover extends along the third straight portion in a side view and covers a portion of the third straight portion above the upper surface of the swing arm from the outside in the vehicle width direction. and

Further , in the above-described configuration, at least one of the plurality of end portions of the frame member may fall within the range of the resin cover when viewed from the side of the vehicle body.

Further, in the above configuration, at least one of the plurality of end portions of the frame member may be positioned forward of the rear wheel axle of the straddle-type vehicle.

Further, in the above configuration, at least one of the plurality of end portions of the frame member may be positioned rearward of the rear wheel axle.

Further, in the above configuration, the portion of the frame member on the rear side of the vehicle body may be positioned rearward of the swing arm.

Further, in the above configuration, the swing arm is provided with upper and lower support portions that support the frame member, and the frame member extends from the support portion on the upper side to the rear of the swing arm, and then moves toward the swing arm. may extend downward from the swing arm, extend forward below the swing arm, and be supported by the lower support portion.

Further, in the above-described configuration, a cover member that covers the rear wheel from the front is provided separately from the rear wheel cover portion, and the gap between the rear wheel cover portion and the cover member is within a predetermined range. There may be.

A straddle-type vehicle comprising a swing arm connected to a vehicle body, a rear wheel supported by the swing arm, and a rear wheel cover portion covering at least an upper lateral side of the rear wheel, wherein the rear wheel cover portion includes: The swing arm includes a metal frame member supported by the swing arm and a resin cover supported by the frame member, the resin cover being positioned outside the frame member in the vehicle width direction, and the swing arm having the swing arm. The cover is larger than the arm and larger than the frame member in the front-rear and vertical directions, and the portion of the frame member that covers the side of the rear wheel above the swing arm is the resin cover. It is arranged only in a region on the inner side in the width direction and overlaps with the resin cover in the vehicle width direction . According to this configuration, the resin cover covers a wide range while reducing the weight, and the frame member facilitates increasing the strength. Therefore, it is possible to obtain a rear wheel cover portion that is light in weight and high in strength.

Further, in the above configuration, the frame member includes a first linear portion extending upward from the upper surface of the swing arm, a second linear portion extending rearward from the upper end of the first linear portion, and a second linear portion. and a third linear portion extending downward from a rear end thereof. The resin cover is a first cover that extends along the first linear portion and covers the first linear portion from the outside in the vehicle width direction when viewed from the side of the vehicle body. a second cover that extends along the second straight portion when viewed from the side of the vehicle body and covers the second straight portion from the outside in the vehicle width direction; and a second cover that extends along the third straight portion when viewed from the side of the vehicle and A third cover covers a portion of the three straight portions above the upper surface of the swing arm from the outside in the vehicle width direction. According to this configuration, the weight can be reduced while covering a wide range by the first to third covers, and the strength can be easily increased by the frame member.
Further, in the above-described configuration, at least one of the plurality of end portions of the frame member falls within the range of the resin cover when viewed from the side of the vehicle body. According to this configuration, exposure of the end portion of the frame member is suppressed, and the resin cover makes it easier to obtain a good appearance and to function as a protective member for the frame member.

Further, in the above configuration, at least one of the plurality of end portions of the frame member is positioned forward of the rear wheel axle of the saddle-ride type vehicle. With this configuration, even when the resin cover covers a wide area forward of the rear wheel axle, it is easy to ensure the strength of the rear wheel cover portion.

Further, in the above configuration, at least one of the plurality of end portions of the frame member is positioned rearward of the rear wheel axle. With this configuration, even when the resin cover covers a wide area behind the rear wheel axle, it is easy to ensure the strength of the rear wheel cover portion.

Further, in the above configuration, the portion of the frame member on the rear side of the vehicle body is positioned rearward of the swing arm. According to this configuration, even when the resin cover covers the region behind the swing arm, it is easy to ensure the strength of the rear wheel cover portion.

Further, in the above configuration, the swing arm is provided with upper and lower support portions that support the frame member, and the frame member extends from the support portion on the upper side to the rear of the swing arm, and then moves toward the swing arm. , extends forward below the swing arm, and is supported by the support portion on the lower side. According to this configuration, the frame member can be firmly supported by the swing arm, and the strength of the rear wheel cover portion can be easily improved.

Further, in the above-described configuration, a cover member that covers the rear wheel from the front is provided separately from the rear wheel cover portion, and the gap between the rear wheel cover portion and the cover member is within a predetermined range. be. According to this configuration, regarding the gap between the rear wheel cover portion and the cover member, if the country or region where the saddle type vehicle is used (including sales) has regulations, the regulations can be satisfied. can.

1 is a side view of a motorcycle according to an embodiment of the invention; FIG. FIG. 4 is a side view showing the sari guard together with its peripheral configuration; FIG. 3 is a view of FIG. 2 with a resin cover removed; FIG. 3 is a view of the inner shroud and its peripheral configuration as viewed from the right front of the vehicle body; FIG. 3 is a view of the left and right inner shrouds together with the peripheral configuration as viewed from the front of the vehicle body; It is the figure which looked at the side cover of the vehicle body right side from the diagonal front with the peripheral structure. It is the figure which looked the side cover of the vehicle body right side from the vehicle body side. FIG. 5 is a diagram illustrating a case where different mesh materials are applied to the first and second mesh members; FIG. 5 is a diagram illustrating a case where different mesh materials are applied to the first and second mesh members; FIG. 5 is a diagram illustrating a case where different mesh materials are applied to the first and second mesh members; It is the figure which looked the undercover from the left side with the peripheral structure. It is the figure which looked the undercover from the right side with the peripheral structure. It is the figure which looked the undercover from the front with the peripheral structure.

An embodiment of the present invention will be described below with reference to the drawings. In the description, directions such as front, back, left, right, and up and down are directions based on the vehicle body unless otherwise specified. Symbol FR shown in each figure indicates the front of the vehicle body, symbol UP indicates the upper part of the vehicle body, and symbol LH indicates the left side of the vehicle body.

FIG. 1 is a side view of a motorcycle 1 according to an embodiment of the invention.
A motorcycle 1 includes a body frame 10 and a power unit 11 supported by the body frame 10 . The body frame 10 supports a pair of left and right front forks 12 that support the front wheels 2, a swing arm 13 that supports the rear wheels 3, and a seat 14 for an occupant. The seat 14 is arranged behind the front portion of the body frame 10 and above the body frame 10 . The motorcycle 1 is a saddle-riding type vehicle in which a rider straddles a seat 14 and sits thereon.

The vehicle body frame 10 has a head pipe 15 forming a front end portion of the vehicle body frame 10 . The body frame 10 includes a main frame 16 extending rearward and downward from a head pipe 15 , a center frame 17 extending downward from the rear end portion of the main frame 16 , and a portion of the head pipe 15 extending rearward and downward from the portion below the main frame 16 . and a down frame 18 extending to the Further, the vehicle body frame 10 includes a rear frame 20 located behind the main frame 16 and the center frame 17 .

The head pipe 15 supports a steering wheel 21 for left and right steering.
The handle 21 is positioned in front of the seat 14 and is a member that is held with both hands by an occupant seated on the seat 14 . A pair of left and right front forks 12 are connected to the steering wheel 21 , and the front wheels 2 are steered left and right according to the steering of the steering wheel 21 . A front wheel axle 2a is rotatably supported at the lower portion of each front fork 12. As shown in FIG. A front wheel 2 is attached to the front wheel axle 2a. The handlebar 21 and the front fork 12 constitute a steering system of the motorcycle 1 .

A pivot shaft 22 extending horizontally in the vehicle width direction is supported by the center frame 17 . A front end of the swing arm 13 is rotatably attached to the pivot shaft 22 . A rear wheel axle 3 a is supported at the rear end of the swing arm 13 . A rear wheel 3 is attached to the rear wheel axle 3a. As the swing arm 13 rotates about the pivot shaft 22, the rear wheel 3 moves up and down.

The power unit 11 is supported by the vehicle body frame 10 below the main frame 16 , behind the down frame 18 and in front of the center frame 17 . The power unit 11 is a single-cylinder air-cooled engine (internal combustion engine). The power unit 11 includes a crankcase 30 and a single cylinder portion 31 extending upward from the upper front portion of the crankcase 30 . Radiation fins for increasing the radiation area of the cylinder portion 31 are provided on the front surface and the left and right side surfaces of the cylinder portion 31 .

A cylinder axis 31a of the cylinder portion 31 extends forward and upward. That is, the power unit 11 is a forward-inclined engine in which the cylinder portion 31 is inclined forward. The crankcase 30 rotatably supports the crankshaft and accommodates a speed change mechanism for changing the speed of rotation of the crankshaft. The crankshaft is a shaft that rotates as a piston (not shown) slides in the cylinder portion 31 .

A drive sprocket 36a is attached to the output shaft 36 of the transmission mechanism. A driven sprocket 3 b is attached to the rear wheel 3 . A chain-type driving force transmission member 32 is stretched between the drive sprocket 36a and the driven sprocket 3b. The driving force transmission member 32 transmits the rotation of the output shaft 36 to the rear wheel shaft 3a. The rotation of the output shaft 36 is transmitted to the rear wheel shaft 3a at a reduction ratio corresponding to the gear ratio between the drive sprocket 36a and the driven sprocket 3b.

The configuration using a chain as the driving force transmission member 32 is not limited, and a configuration using a belt as the driving force transmission member 32 and a configuration using a shaft (so-called drive shaft) as the driving force transmission member 32 are appropriately applied. may

A front end serving as an upstream end of an exhaust pipe 33 is connected to the front surface of the cylinder portion 31 of the power unit 11 . The exhaust pipe 33 extends downward in front of the cylinder portion 31 and then bends rearward to extend rearward under the power unit 11 . A muffler 34 is connected to the downstream end of the exhaust pipe 33 .

A fuel tank 35 supported on the main frame 16 is positioned above the power unit 11 and behind the head pipe 15 . A seat 14 supported on the rear frame 20 is positioned behind the fuel tank 35 . The seat 14 includes a driver's front seat 14a and a fellow passenger's rear seat 14b arranged behind the front seat 14a. An oil cooler 37 is arranged in front of the power unit 11 . The oil cooler 37 is an oil cooling device that cools the oil in the power unit 11 using outside air.

A pair of left and right steps 41 are attached to the lower portion of the center frame 17 on which the feet of an occupant seated on the front seat 14a are placed. The vehicle body frame 10 is provided with a pair of left and right sub-frames 20s extending rearwardly upward from the lower portion of the center frame 17 . A pair of left and right pillion steps 42 are attached to the sub-frames 20s for placing the feet of the passenger seated on the rear seat 14b. A rear end of each sub-frame 20 s is connected to the rear frame 20 .

The crankcase 30 is a case extending rearward from the lower portion of the cylinder portion 31 . A crankshaft (not shown) is rotatably supported in the front portion of the crankcase 30 , and an output shaft 36 of the transmission is rotatably supported in the rear portion of the crankcase 30 .

The vehicle body frame 10 is covered with a vehicle body cover 51 . The vehicle body cover 51 constitutes an exterior member of the motorcycle 1 .
The vehicle body cover 51 has a front cover 52 that covers a portion forward of the head pipe 15, and the forward portion has lights and gauges provided in the front portion of the vehicle body. The body cover 51 also includes a pair of left and right front side covers 53 covering the left and right front portions of the body frame 10 and a pair of left and right shrouds 54 attached to the left and right of the front side covers 53 . The front side cover 53 also serves as a tank cover that covers the front, rear, right and left sides of the fuel tank 35 .

The vehicle body cover 51 includes a pair of left and right side covers 55 (also referred to as a center cover or a center side cover) that cover the lower portion of the front seat 14 a behind the front side covers 53 . A rear cover 56 is provided to cover the lower portion of the rear seat 14b. The vehicle body cover 51 also includes an undercover 57 (also referred to as an undercowl) that covers the lower portion of the power unit 11 .

The front side cover 53, the shroud 54, the side cover 55, and the rear cover 56 are arranged in series to form a large side cover that covers the sides of the vehicle body from the front to the rear. The undercover 57 is a separate and independent cover spaced downward from the large side cover. With this cover configuration, at least the front portion and the left and right sides of the power unit 11 are exposed to the outside of the vehicle, so that the power unit 11 can be viewed from the outside of the vehicle.

The motorcycle 1 also has a side stand 58 . The motorcycle 1 also includes a front fender 60 that covers the front wheel 2 from above, a hugger fender 61 that covers the rear wheel 3 from above, and a rear fender 62 that is supported by the rear frame 20 and covers the rear wheel 3 from above. It has Furthermore, the motorcycle 1 includes a sari guard 71 that covers the sides of the rear wheel 3 .

(About Sally Guard 71)
FIG. 2 is a side view showing the sari guard 71 together with its peripheral configuration.
The sari guard 71 is a cover component that covers at least the upper side of the rear wheel 3, and functions as a rear wheel cover portion. The sari guard 71 has a metal skeleton member 72 and a resin cover 73 supported by the skeleton member 72 .
FIG. 3 is a diagram of FIG. 2 with the resin cover 73 removed. The skeleton member 72 includes a main skeleton member 74 formed of a metal pipe, sub-skeletal members 75 that reinforce the main skeleton member 74, and metallic stays 77A, 77B provided on the main skeleton member 74 at intervals. It has 77C.

The main frame member 74 includes a first linear portion 74A extending forward and upward from the support portion 13A provided on the upper surface of the swing arm 13, and a second linear portion 74B extending rearward and upward from the upper end of the first linear portion 74A. ing. The main frame member 74 also has a third straight portion 74C extending downward behind the swing arm 13 from the rear end of the second straight portion 74B, and a fourth straight portion 74D extending forward from the lower end of the third straight portion 74C. It has In this configuration, the first to fourth linear portions 74A to 74D are manufactured by bending a single metal pipe. However, the first to fourth straight portions 74A to 74D may be manufactured by joining a plurality of metal pipes.

Metal brackets 80A and 80B are joined to both ends of the main frame member 74 . A first linear portion 74A forming one end side of the main frame member 74 is fixed to a support portion 13A provided on the upper surface of the swing arm 13 using a fastening member 81 via a bracket 80A. A fourth linear portion 74D forming the other end side of the main frame member 74 is fixed to a support portion 13B provided on the lower surface of the swing arm 13 using a fastening member 82 via a bracket 80B.

As shown in FIG. 3, the support portion 13A on the upper surface of the swing arm 13 is located forward of the rear wheel axle 3a, and the first straight portion 74A connected to the support portion 13A extends forward and upward. As a result, the upper end of the first linear portion 74A is positioned forwardly and upwardly away from the rear wheel axle 3a, and is positioned closer to the hugger fender 61 as shown in FIG. A first stay 77A for attaching a resin cover is attached to a position near the first straight portion 74A in the second straight portion 74B. This first stay 77A extends upward and is arranged at a position close to the hugger fender 61 .

The rear end of the second straight portion 74B is arranged at a position spaced rearward and upward from the rear wheel axle 3a. A second stay 77B for attaching a resin cover is attached to the rear end of the second straight portion 74B. The second stay 77</b>B extends rearwardly upward and is arranged at a position near the outermost surface of the rearwardly upward portion of the rear wheel 3 .

The third straight portion 74</b>C extends downward along a direction perpendicular to and intersecting the extending direction of the swing arm 13 . The third straight portion 74C is arranged behind the swing arm 13 . The fourth straight portion 74D bends forward at a right angle from the lower end of the third straight portion 74C and extends forward along the lower surface of the swing arm 13 . That is, the third straight portion 74C and the fourth straight portion 74D do not overlap the swing arm 13 when viewed from the side of the vehicle body, and are arranged using the space behind and below the swing arm 13 .

A third stay 77C for attaching a resin cover is attached to the third linear portion 74C. The third stay 77</b>C extends rearward and is arranged at a position near the rearmost outer surface of the rear wheel 3 .
In this way, the first stay 77A to the third stay 77C are arranged at a position spaced forward and upward from the rear wheel axle 3a, a position spaced rearward and upward from the rear wheel axle 3a, and a position spaced rearward from the rear axle 3a. Three stays are arranged.

A support portion 13C made of metal is provided on the upper surface of the swing arm 13 behind the rear wheel axle 3a. A front end of the sub-skeletal member 75 is attached to the support portion 13C by a fastening member 83 via a bracket 80C. The sub-skeletal member 75 is formed of a single metal pipe, extends linearly rearward and upward from the support portion 13C, and is joined to the third linear portion 74C.

The position where the rear end of the sub-skeletal member 75 is joined corresponds to the intermediate position of the third linear portion 74C. The third straight portion 74C is the longest straight portion among the first straight portion 74A to the fourth straight portion 74D, and is relatively easily deformable.
In this configuration, since the sub-skeletal member 75 is connected to the intermediate position of the third straight portion 74C, the sub-skeletal member 75 can suppress deformation of the third straight portion 74C. That is, the sub-skeletal member 75 functions as a reinforcing member that reinforces the main skeleton member 74 .

Also, the location where the sub-framework member 75 and the main framework member 74 are joined is in the vicinity of the location where the third stay 77C is joined. Accordingly, the support strength of the third stay 77C can also be improved by the sub-skeletal member 75 .
An intermediate position of the third straight portion 74</b>C corresponds to an intermediate position between the front end and the rear end of the main frame member 74 . Therefore, each of the front end, rear end and intermediate position of the main skeleton member 74 can be supported by the swing arm 13 . Thereby, deformation of the main skeleton member 74 can be effectively suppressed.

As shown in FIG. 2, the resin cover 73 is a cover that is integrally molded using a resin material, and is fixed to the first stay 77A to the third stay 77C of the main skeleton member 74 by fastening members (not shown). be. Although the resin material is not particularly limited, for example, a resin material used for general motorcycle body covers and guard members may be applied.

The resin cover 73 is arranged outside the main frame member 74 in the vehicle width direction in the region above the swing arm 13 . Also, the resin cover 73 is formed as a large cover that covers a predetermined area of the main frame member 74 (the area above the swing arm 13 in this configuration).

Since the resin cover 73 is made of a resin material, even if it is formed larger than the main skeleton member 74, it can be made lighter than when the cover 73 is made of a metal material. Further, the main frame member 74 is arranged closer to the inner side in the vehicle width direction than the surface of the swing arm 13 on the outer side in the vehicle width direction. As a result, even if the resin cover 73 is arranged outside the main frame member 74 in the vehicle width direction, it is easy to suppress the outward protrusion of the resin cover 73 in the vehicle width direction. Further, even if the resin cover 73 is enlarged, it becomes easy to sufficiently secure the strength of the sari guard 71 by the metal skeleton member 72 .

A specific configuration and shape of the resin cover 73 will be described.
The resin cover 73 has a fixing portion 73X fixed to the swing arm 13 by the two fastening members 81 and 83 described above. That is, the resin cover 73 and the main frame member 74 are fastened together to the swing arm 13 by the fastening members 81 and 83 . As a result, fixing parts for fixing the resin cover 73 and the main frame member 74 to the swing arm 13 can be reduced.

The fixed portion 73X has a cover shape extending linearly along the upper surface of the swing arm 13 . The fixed portion 73X covers the rear wheel 3 from the side in the vicinity of the upper surface of the swing arm 13. As shown in FIG. Thereby, the fixed part 73X functions as a part of the guard part of the sari guard 71 .
The resin cover 73 includes a first cover 73A extending forward and upward from the front end of the fixed portion 73X, and a second cover 73B extending rearward and upward from the top end of the first cover 73A. Further, the resin cover 73 has a third cover 73C extending downward from the rear end of the second cover 73B. A lower end of the third cover 73C is connected to a rear end of the fixed portion 73X.

The first cover 73A is a cover that covers the vehicle width direction outer side of the first straight portion 74A. The second cover 73B is a cover that covers the vehicle width direction outer side of the second straight portion 74B. The third cover 73C is a cover that covers the vehicle width direction outer side of the third linear portion 74C above the swing arm 13 . The first to third covers 73A to 73C can suppress exposure of the main frame member 74 above the swing arm 13 and guard a wider area than the main frame member 74. As shown in FIG.
The third cover 73</b>C and the fixing portion 73</b>X can suppress external exposure of the sub-skeletal member 75 and guard a wider area than the sub-skeletal member 75 .

A portion of the main frame member 74 is arranged below the upper surface of the swing arm 13 . The part is a part of the third linear portion 74C that extends along the back surface of the swing arm 13 and a fourth linear portion 74D that extends along the lower surface of the swing arm 13. These function as guard portions that cover the rear wheel 3 from the sides behind and below the swing arm 13 . Therefore, the range guarded by the sari guard 71 can be extended to the rear and lower sides of the swing arm 13 .

If the range of the sari guard 71 needs to be widened behind and below the swing arm 13, the range covered by the resin cover 73 is expanded to include the lower portion of the third straight portion 74C and the fourth straight portion 74D. You may do so.

The resin cover 73 also includes a fourth cover 73D extending upward from the second cover 73B and a fifth cover 73E extending rearward from the third cover 73C. The fourth cover 73D is formed as a cover that covers from the left side the upper region of the rear wheel 3 exposed above the second cover 73B when viewed from the side of the vehicle body. The fifth cover 73E is formed as a cover that covers, from the left side, the rear region of the rear wheel 3 exposed behind the third cover 73C when viewed from the side of the vehicle body. By these covers 73D and 73E, the area covering the rear wheel 3 can be expanded upward and rearward, and an increase in the weight of the sari guard 71 can be suppressed.

A predetermined gap S (see FIG. 2) is provided between the hugger fender 61 and the resin cover 73 . The gap S is set to a predetermined size that satisfies the regulations of the country or region where the motorcycle 1 is used, and is, for example, equal to or less than a predetermined threshold value. This gap S can be adjusted by adjusting the shape of the resin cover 73 . By adjusting the gap S, even if there is a change in regulations, it is possible to satisfy the regulations without changing the frame member 72 .

A through-hole 73Y is formed in the area surrounded by the fixing portion 73X and the first and third covers 73A and 73C so as to penetrate in the vehicle width direction. Furthermore, the fourth cover 73D and the fifth cover 73E are also formed with through-holes 73H and 73J extending in the vehicle width direction. These through holes 73Y, 73H, and 73J allow the weight of the resin cover 73 to be reduced, making it easier to keep the sari guard 71 within a desired weight.
The shape and size of each of the through holes 73Y, 73H and 73J may be changed as appropriate. Also, one or more of these through holes 73Y, 73H and 73J may be omitted.

As described above, the sari guard 71 has the metal frame member 72 supported by the swing arm 13 and the resin cover 73 supported by the frame member 72 . is located on the outside in the vehicle width direction, and at least a portion of the frame member 72 and the resin cover 73 overlap when viewed from the side of the vehicle. With this configuration, the resin cover 73 covers a wide area while reducing the weight, and the frame member 72 facilitates increasing the strength. Therefore, it is possible to obtain the sari guard 71 which is light in weight and high in strength.

As shown in FIG. 2, a plurality of ends of the skeleton member 72 (the front end of the main skeleton member 74 and the ends of the sub-skeletal members 75) are within the range of the resin cover 73 when viewed from the side of the vehicle body. As a result, exposure of the end portion of the frame member 72 is suppressed, and the resin cover 73 makes it easier to obtain a good appearance and function as a protective member for the frame member 72 .
In this configuration, among the plurality of ends of the skeleton member 72, the rear end of the main skeleton member 74 is outside the range of the resin cover 73 when viewed from the side of the vehicle body. The rear end of the main frame member 74 may also be placed within the range of the resin cover 73 when viewed from the side of the vehicle body by changing the position of the rear end or changing the shape of the resin cover 73 .

Among the plurality of ends of the skeleton member 72, the ends positioned on the front side of the vehicle body (the front and rear ends of the main skeleton member 74) are positioned forward of the rear wheel axle 3a. As a result, even when the resin cover 73 covers a wide area in front of the rear wheel axle 3a, it is easy to ensure the support strength of the resin cover 73 and the strength of the sari guard 71.

Among the plurality of end portions of the skeleton member 72, the end portion located on the rear side of the vehicle body (the end portion of the sub-frame member 75) is located behind the rear wheel axle 3a. As a result, even when the resin cover 73 covers a wide area rearward of the rear wheel axle 3a, it is easy to ensure the support strength of the resin cover 73 and the strength of the sari guard 71 .

A third straight portion 74</b>C, which is a portion of the frame member 72 on the rear side of the vehicle body, is positioned rearward of the swing arm 13 . This also makes it easier to ensure the support strength of the resin cover 73 and the strength of the sari guard 71 even when the resin cover 73 covers a wide area behind the rear wheel axle 3a.

Further, the swing arm 13 is provided with upper and lower support portions 13A and 13B that support a frame member 72, and the frame member 72 extends rearward of the swing arm 13 from the upper support portion 13A and then extends from the swing arm 13. It extends downward, extends forward under the swing arm 13, and is supported by the lower support portion 13B. With this configuration, the frame member 72 can be firmly supported by the swing arm 13 , and the support strength of the resin cover 73 and the strength of the sari guard 71 can be easily improved.

A hugger fender 61, which is a cover member for covering the rear wheel 3 from the front, is provided separately from the sari guard 71, and a gap S between the sari guard 71 and the hugger fender 61 is set within a predetermined range. . This predetermined range is a range that satisfies the laws and regulations, if any, in the country or region where the motorcycle 1 is used (including sales).
A plurality of types of resin covers 73 that can be attached to the same frame member 72 and that have different coverage ranges may be prepared. Moreover, it is also possible to prepare a plurality of types of frame members 72 to which the same resin cover 73 can be attached and which can be attached to different vehicle models.

(Regarding shroud 54)
As shown in FIG. 1 , the left and right shrouds 54 are positioned behind the head pipe 15 , above the power unit 11 , and in front of the seat 14 . The left and right shrouds 54 are resin covers provided on the left and right sides of the front portion of the vehicle body, and have symmetrical shapes on the left and right sides.
The shroud 54 is formed in a triangular shape whose vertical width increases toward the front side when viewed from the side of the vehicle body. Here, the front edge of the shroud 54 is behind the front fork 12 and slopes downward along the front fork 12 and the head pipe 15 from near the upper end of the head pipe 15 . The front edge of the shroud 54 extends downward to the vicinity of the front fender 60 when viewed from the side of the vehicle body.

The shroud 54 includes an outer shroud 91 arranged outside in the vehicle width direction, and an inner shroud 92 arranged inside the outer shroud 91 in the vehicle width direction. An air passage is formed between the outer shroud 91 and the inner shroud 92 through which outside air can pass in the longitudinal direction.
FIG. 4 is a view of the inner shroud 92 and its peripheral configuration as viewed from the right front of the vehicle body. 4 shows a state in which the outer shroud 91 is removed. FIG. 5 is a view of the left and right inner shrouds 92 together with the peripheral structure as viewed from the front of the vehicle body. In FIG. 5, symbol LM indicates the center line in the vehicle width direction.

As shown in FIG. 4 , the inner shroud 92 is attached to the front side cover 53 by a plurality of (two in this configuration) fastening members 93 . As a fixing structure for the inner shroud 92 and the outer shroud 91, known fixing structures can be widely applied. For example, the inner shroud 92 and the outer shroud 91 may be fastened together to the front side cover 53 or the vehicle body frame 10 by the fastening member 93 .

A front edge L1 of the inner shroud 92 extends downward along the front fork 12 and the head pipe 15 . An upper edge L2 of the inner shroud 92 extends rearwardly upward. The lower edge L3 of the inner shroud 92 extends rearwardly upward at a steeper angle than the upper edge L2 of the inner shroud 92 and connects to the rear end of the upper edge L2 of the inner shroud 92 .

The inner shroud 92 overlaps the front portion of the main frame 16 and the front portion of the center frame 17 when viewed from the side of the vehicle body. For this reason, the inner shroud 92 also serves as a cover that vertically extends between the front portion of the main frame 16 and the front portion of the center frame 17 and covers the outer side in the vehicle width direction.

A plurality of wind direction adjustment plates 92A are provided at the rear portion of the inner shroud 92 with a space therebetween. The plurality of wind direction adjustment plates 92A are formed in a blade shape that protrudes outward in the vehicle width direction and inclines rearward and upward. These wind direction adjusting plates 92A rectify the running wind from the front of the vehicle body rearward and upward. In this configuration, for example, the air is rectified to the left and right of the occupant seated on the seat 14 . It should be noted that the wind direction adjusting plate 92A can be widely applied to a shape that can adjust the wind direction in a desired direction.

An opening 92K that opens inward in the vehicle width direction is provided in a front portion of the inner shroud 92, that is, in a region forward of the plurality of wind direction adjustment plates 92A. The position of the opening 92K is on the front side of the inner shroud 92 and corresponds to the upstream position in the air passage between the inner shroud 92 and the outer shroud 91 when the vehicle body is running. It should be noted that the position of the opening 92K may be appropriately changed at least in a range forward of the center position of the inner shroud 92 in the front-rear direction.

The opening 92K is positioned below the main frame 16 and above the center frame 17 . More specifically, the upper edge LA of the opening 92K extends rearward and upward below the main frame 16 in a side view of the vehicle body, and its rear end extends to a position close to the lower surface of the main frame 16 . A front edge LB of the opening 92K extends vertically along the front edge of the inner shroud 92, and a lower portion thereof overlaps the center frame 17 when viewed from the side of the vehicle body. A lower edge LC of the opening 92K extends horizontally. A rear edge LD of the opening 92K extends rearward and upward from the lower edge LC, then bends and extends forward and upward to connect to the rear end of the upper edge LA.

When the motorcycle 1 is running, outside air, which is running wind, flows between the inner shroud 92 and the outer shroud 91 from the front of the vehicle body. A part of this outside air flows into the interior of the vehicle from between the main frame 16 and the center frame 17 by passing through the opening 92K. The inside of the vehicle can be cooled by the outside air that has flowed into the inside of the vehicle.
A plurality of wind direction adjustment plates 92W are provided in the opening 92K at intervals. The plurality of wind direction adjustment plates 92W are formed in a plate shape extending rearward and upward when viewed from the side of the vehicle body. These wind direction adjusting plates 92W rectify the wind direction of the outside air flowing into the interior of the vehicle in a desired direction. The desired orientation is the preferred orientation for cooling the interior of the vehicle. The shape and desired direction of the wind direction adjusting plate 92W can be changed as appropriate.

4 and 5 show a vertical line LR passing through the rear end of the opening 92K. As shown in FIG. 4 , the opening 92K opens forward of the power unit 11 . The outside air made up of the running wind that has flowed in through the opening 92K flows toward the rear of the vehicle body, so that the outside air can easily flow around the cylinder portion 31 of the power unit 11. As shown in FIG.

As shown in FIG. 4, the left opening 92K overlaps at least a portion of the ignition coil 100 when viewed from the side of the vehicle body. As shown in FIG. 5, an ignition coil 100 is arranged between the left and right inner shrouds 92, and the bottom surface of the fuel tank 35 is exposed. As a result, the temperature rise of the ignition coil 100, the bottom surface of the fuel tank 35, and the like can be suppressed by the outside air flowing in from the left and right openings 92K. The ignition coil 100 is one of the electrical components mounted on the motorcycle 1 .

FIG. 5 shows a vertical line LF passing through the front ends of the left and right openings 92K. As shown in FIG. 5, when viewed from the front of the vehicle body, the position of the rear end of the opening 92K (vertical line LR) is located outside the position of the front end of the opening 92K (vertical line LF) in the vehicle width direction. This makes it easier for outside air from the front of the vehicle body to flow into each opening 92K.
At least part of the ignition coil 100 overlaps the opening 92K when viewed from the front of the vehicle body. Therefore, outside air from the front of the vehicle body can be directly applied to the ignition coil 100 through the opening 92K, and the ignition coil 100 can be effectively cooled.

In addition, the front ends of the left and right openings 92K (vertical lines LF) are located near the outer ends of the cylinder portion 31 in the vehicle width direction when viewed from the front of the vehicle body. In this configuration, one (right) opening 92K is located inside the outer end of the cylinder portion 31 in the vehicle width direction. This also makes it easier for the air that has flowed in from the opening 92</b>K to flow around the outer end in the vehicle width direction of the cylinder portion 31 , thereby making it easier to cool the cylinder portion 31 .

As shown in FIG. 4, the oil cooler 37 is provided in front of the cylinder portion 31 and the center frame 17 and at a position lower than the opening 92K. A pair of left and right oil cooler covers 37</b>C that cover the left and right sides of the oil cooler 37 are arranged on the left and right sides of the oil cooler 37 . An oil pipe 37</b>P extends downward from the lower portion of the oil cooler 37 , and the extended end of the oil pipe 37</b>P is connected to the power unit 11 .

As described above, the shroud 54 has an air passage between the inner shroud 92 and the outer shroud 91, and the inner shroud 92 is provided with the opening 92K that opens inward in the vehicle width direction. According to this configuration, the inside of the vehicle can be cooled using the outside air flowing into the air passage between the inner shroud 92 and the outer shroud 91 .

Also, the opening 92K is arranged on the front side of the inner shroud 92 . This makes it easier for part of the outside air that has flowed into the air passage to flow into the interior of the vehicle from a position closer to the front of the vehicle, facilitating cooling of a wide area inside the vehicle. In addition, the position of the opening 92</b>K is arranged on the front side of at least the center position of the inner shroud 92 in the front-rear direction. As a result, outside air can flow into the interior of the vehicle from at least the front side of the inner shroud 92 relative to the central position in the front-rear direction, facilitating cooling of a wide area of the interior of the vehicle.
Further, since the wind direction adjusting plate 92W is provided at the opening 92K, the wind direction of the outside air flowing into the vehicle interior through the opening 92K can be adjusted to an appropriate direction.

In addition, when viewed from the front of the vehicle body, the rear end of the opening 92K is located outside the front end of the opening 92K in the vehicle width direction.
The power unit 11 also includes an engine (internal combustion engine) having a cylinder portion 31 . At least a portion of any one of the openings 92K of the left and right inner shrouds 92 is positioned inward in the vehicle width direction from the outer end of the cylinder portion 31 in the vehicle width direction when viewed from the front of the vehicle body. According to this configuration, it becomes easy to effectively cool the cylinder portion 31, which generates a relatively large amount of heat in the engine, by using the outside air that has flowed into the opening 92K.

In addition, since the rear end of the opening 92K is located forward of the power unit 11 when viewed from the side of the vehicle body, outside air from the front of the vehicle body flows into the front of the power unit 11 through the opening 92K, effectively displacing the power unit 11. cooling becomes easier.
In addition, since the ignition coil 100, which is an electrical component of the motorcycle 1, is provided in the space between the left and right inner shrouds 92 when viewed from the front of the vehicle body, the ignition coil 100 is easily cooled by the outside air flowing in from the opening 92K. Moreover, since the opening 92K and at least a portion of the ignition coil 100 overlap when viewed from the front of the vehicle body and from the side view of the vehicle body, the ignition coil 100 can be cooled effectively. In at least one of the front view of the vehicle body and the side view of the vehicle body, at least a portion of the opening 92K and the ignition coil 100 may overlap. In this case also, the ignition coil 100 can be effectively cooled easily by outside air from the front or side of the vehicle body.

(Regarding the side cover 55)
FIG. 6 is a view of the side cover 55 on the right side of the vehicle body and its peripheral configuration as seen obliquely from the front. FIG. 7 is a view of the side cover 55 on the right side of the vehicle as viewed from the side of the vehicle. The left and right side covers 55 are symmetrical with respect to the vehicle width direction center line LM.
A part of the side cover 55 is an exterior member of the mesh member 110 . A portion of the side cover 55 excluding the mesh member 110 is composed of a resin cover 111 . As shown in FIG. 6, the mesh member 110 is offset toward the inside of the vehicle body with respect to the surface of the side cover 55 (the surface of the resin cover 111). As shown in FIGS. 6 and 7, the resin cover 111 has an opening 112 whose vertical length narrows toward the rear of the vehicle body, and an outer frame 111W surrounding the opening 112. is covered with a mesh member 110. The opening 112 penetrates the side cover 55 in the vehicle width direction. Since the mesh member 110 has air permeability, the space inside and outside the side cover 55 can be ventilated through the mesh member 110 .

As shown in FIG. 7, a battery 115, which is a relatively large electrical component, is mounted inside the side cover 55 in the vehicle width direction. The battery 115 is arranged using the space under the seat 14, and is arranged at a position overlapping at least a part of the mesh member 110 when viewed from the side of the vehicle body.

The mesh member 110 includes a first mesh member 110A arranged inside in the vehicle width direction, and a second mesh member 110B arranged in the vehicle width direction of the first mesh member 110A. By forming the mesh member 110 into a double structure in which the first and second mesh members 110A and 110B are layered, it is possible to suppress the infiltration of rainwater while obtaining air permeability and the appearance of a mesh material.
The same mesh material or different mesh materials may be used for the first and second mesh members 110A and 110B. Also, the shape of the holes (also referred to as eyes) of the mesh members 110A and 110B, the pitch of the holes, and the like may be appropriately set. Widely distributed mesh materials can be applied to each of the mesh members 110A and 110B, and the materials of the materials are not limited to synthetic fibers such as nylon, and metal materials may be applied.

8 to 10 are diagrams showing examples of applying different mesh materials to the first and second mesh members 110A and 110B.
FIG. 8 schematically shows a case where the first mesh member 110A is a mesh material with elliptical holes arranged, and the second mesh member 110B is a mesh material with square holes arranged. By stacking the mesh members 110A and 110B, the area of the communicating openings can be reduced compared to the case of either one of the mesh members 110A or 110B.

The left side of FIG. 9 schematically shows a case where the holes of the first mesh member 110A are elliptical and the holes of the second mesh member 110B are elliptical with a larger area than the holes of the first mesh member 110A. ing. According to this configuration, even if rainwater passes through the second mesh member 110B, it is possible to make it difficult for the rainwater to pass through the first mesh member 110A while obtaining the appearance design of the mesh having relatively large holes.

The right side of FIG. 9 schematically shows a case where the holes of the first mesh member 110A are elliptical in the vertical direction of the vehicle body, and the holes of the second mesh member 110B are elliptical in the longitudinal direction of the vehicle body. By stacking the mesh members 110A and 110B, the area of the holes for ventilation can be made small, and it becomes difficult for rainwater to pass through while maintaining ventilation.

FIG. 10 schematically shows a case where the first mesh member 110A and the second mesh member 110B have different hole intervals. Further, FIG. 10 schematically shows a case where the first mesh member 110A has triangular holes and the second mesh member 110B has square holes. In any of the cases shown in FIG. 10, by stacking the mesh members 110A and 110B while obtaining various mesh appearance designs, it is possible to reduce the area of the ventilation holes, thereby making it difficult for rainwater to pass through while maintaining breathability. .

As described above, part of the side cover 55 made of an exterior member is used as the mesh member 110, and the mesh member 110 consists of the first mesh member 110A and the second mesh member 110B arranged outside the first mesh member 110A. and By overlapping the mesh members 110A and 110B, the side cover 55 can suppress the infiltration of rainwater while providing air permeability and the appearance of a mesh material. In this embodiment, the second mesh member 110B is arranged outside the first mesh member 110A in the vehicle width direction, but the present invention is not limited to this aspect. For example, when the mesh members 110A and 110B are arranged on the surface of the exterior member exposed to the front of the vehicle body, the second mesh member 110B may be arranged in front corresponding to the outer side of the first mesh member 110A.

In addition, by making the area of the holes of the first mesh member 110A smaller than that of the holes of the second mesh member 110B, the side cover 55 can have the appearance of a mesh material with large holes while suppressing the infiltration of rainwater. .
In addition, by making at least one of the shape, orientation, and spacing of the holes of the first mesh member 110A different from those of the second mesh member 110B, the mesh members 110A and 110B can be separated while obtaining the desired appearance of the mesh material. You can adjust the communication area when overlapping. Moreover, by making the combination of the designs of the mesh members 110A and 110B visible, it is possible to obtain an appearance that cannot be obtained from a single sheet of mesh material.

In addition, since the mesh member 110 is positioned outside the battery 115 in the vehicle width direction, the air permeability of the mesh member 110 facilitates cooling the battery 115 while suppressing attachment of rainwater. In addition, an effect of making the battery 115 difficult to see from the outside can be expected.

Furthermore, since the mesh member 110 is offset toward the inside of the vehicle body with respect to the surface of the side cover 55 , the mesh member 110 is less likely to be blocked even if the occupant's feet or the like are positioned on the surface of the side cover 55 . Therefore, it becomes easier to maintain the ventilation of the side cover 55 .

(Regarding Undercover 57)
FIG. 11 is a left side view of the undercover 57 together with its peripheral configuration. FIG. 12 is a right side view of the undercover 57 together with its peripheral configuration. FIG. 13 is a front view of the undercover 57 together with its peripheral configuration.
As shown in FIGS. 11 to 13, the undercover 57 is a cover that covers the lower front portion of the power unit 11 and the lower portion of the exhaust pipe 33 from below, and is made of metal or resin. This undercover 57 has a front wall 121 , a right side wall 122 and a left side wall 123 . Note that the undercover 57 is basically bilaterally symmetrical with respect to the vehicle width direction center line LM.

As shown in FIGS. 11 and 12, the front wall 121 is an inclined wall that is inclined rearward and upward when viewed from the side of the vehicle body. As shown in FIG. 13, the front wall 121 is formed as a wall extending left and right with respect to the center line LM in the vehicle width direction in front of the lower portion of the exhaust pipe 33 and recessed downward at the center of the upper edge in the left and right direction. ing. An exhaust pipe 33 is positioned at a recessed portion of the upper edge of the front wall 121 . In this manner, the front wall 121 is formed in a V shape when viewed from the front of the vehicle body, and the exhaust pipe 33 is positioned between the V shapes.

The left and right regions of the front wall 121 are provided with left and right first openings 131 penetrating in the front-rear direction. The first opening 131 on the left side is formed in an opening shape extending obliquely upward to the left from the left-right center and lower position of the front wall 121 . The right first opening 131 is bilaterally symmetrical with the left first opening 131 with respect to the vehicle width direction centerline LM. A plurality of wind direction adjustment plates 132 are provided in these first openings 131 , 131 at intervals in the vertical direction.

The front wall 121 can guard the front lower front surface of the power unit 11 and the lower front surface of the exhaust pipe 33 . In addition, the left and right first openings 131 allow external air from the front to flow to the front surface of the power unit 11 and to the left and right sides of the exhaust pipe 33, thereby facilitating cooling of these.

The wind direction adjustment plates 132 provided in the left and right first openings 131 are formed in a blade shape that is inclined rearward and upward. The wind direction adjustment plate 132 allows the outside air that has flowed into the first opening 131 to flow around the power unit 11 and the exhaust pipe 33 positioned rearwardly and upwardly. Note that the wind direction adjusting plate 132 can widely apply a shape that can adjust the wind direction in a desired direction. Moreover, the opening shape of the left and right first openings 131 may be changed as appropriate.

The right side wall 122 is a cover that extends outward in the vehicle width direction over the top and bottom of the right edge of the front wall 121 and extends rearward, and covers the right side portion of the power unit 11 including the lower side. As shown in FIG. 12, the right side wall 122 includes a right front cover portion 122F that continues to the right edge of the front wall 121 and extends rearward, and a rear edge of the right front cover portion 122F that extends rearward while gradually lowering its upper edge. and an extending right rear cover portion 122R.

Here, the right side surface of the power unit 11 is provided with a pipe connection portion 141 to which the oil pipe 37P is connected. The oil pipe 37</b>P extends rearwardly and downwardly in front of the cylinder portion 31 from the oil cooler 37 , bends in front of the crankcase 30 , extends rearwardly and downward at an angle close to horizontal, and is connected to the pipe connection portion 141 .

The right front cover portion 122F projects outward in the vehicle width direction from the front wall 121 and overlaps at least a portion of the oil pipe 37P when viewed from the side of the vehicle body. The right front cover portion 122F can guard the side and bottom of the oil pipe 37P. The right front cover portion 122F corresponds to the "piping cover portion" of the present invention.

As shown in FIG. 13, the front wall 121 is located below the oil pipe 37P when viewed from the front of the vehicle body. As a result, the oil pipe 37P can be cooled by outside air from the front of the vehicle body while the undercover 57 guards the oil pipe 37P.

As shown in FIGS. 12 and 13, the right front cover portion 122F has second and third openings 133 and 134 penetrating in the front-rear direction.
The right front cover portion 122F has recesses 143 and 144 which are vertically spaced apart from each other in the vehicle width direction and are recessed inward in the vehicle width direction. As shown in FIG. 12, the upper concave portion 143 is positioned below the oil pipe 37P and in front of the pipe connecting portion 141, and the second opening portion 133 is formed in this concave portion 143. As shown in FIG. The second opening 133 overlaps at least a portion of the exhaust pipe 33 positioned in front of the power unit 11 when viewed from the side of the vehicle body. By passing the outside air through the second opening 133, the outside air flows around the pipe connection portion 141, the oil pipe 37P, and the exhaust pipe 33, making it easier to cool them.

The lower recessed portion 144 is positioned below the upper recessed portion 143 and the power unit 11, and the third opening portion 134 is formed in the recessed portion 144. As shown in FIG. The third opening 134 overlaps at least a portion of the exhaust pipe 33 positioned forwardly and downwardly of the power unit 11 when viewed from the side of the vehicle body. By passing the outside air through the third opening 134, the outside air flows around the exhaust pipe 33 and around the lower surface of the power unit 11, making it easier to cool them.

The left side wall 123 is a cover extending outward in the vehicle width direction over the top and bottom of the left edge of the front wall 121 and extending rearward, and covers the left side portion of the power unit 11 including the lower side. As shown in FIG. 11 , the left side wall 123 is formed in a wall shape that covers the lower portion of the power unit 11 from the front and rear of the power unit 11 from the outside in the vehicle width direction. The left wall 123 includes a left front cover portion 123F extending rearward from the left edge of the front wall 121, and a left rear cover portion extending rearward while gradually lowering the upper edge from the rear edge of the left front cover portion 123F. It integrally has a portion 123R.

Here, as shown in FIGS. 11 and 13, an ACG sensor 150 exposed outside the vehicle is attached to the left side surface of the power unit 11 . The ACG sensor 150 is a sensor unit that acquires information regarding an ACG (alternating current generator) provided in the crankcase 30 .
The left front cover portion 123F is positioned outside the ACG sensor 150 in the vehicle width direction and overlaps at least a portion of the ACG sensor 150 when viewed from the side of the vehicle body. The left front cover portion 123F can guard the side and bottom of the ACG sensor 150. As shown in FIG. The left front cover portion 123F corresponds to the "sensor cover portion" of the present invention.

As shown in FIG. 13, the front wall 121 overlaps at least a portion of the ACG sensor 150 when viewed from the front of the vehicle body. As a result, the front of the ACG sensor 150 can also be guarded.
Further, the left front cover portion 123F has recesses 145 and 146 at positions symmetrical to the recesses 143 and 144 on the right side with respect to the vehicle width direction center line LM. It has openings 135 and 136 at symmetrical positions. Hereinafter, for convenience of explanation, the upper opening 135 will be referred to as the "left second opening 135", and the lower opening 136 will be referred to as the "left third opening 136".

As shown in FIG. 13, the left second opening 135 is provided outside the front wall 121 in the vehicle width direction and at a position overlapping at least a portion of the ACG sensor 150 when viewed from the front of the vehicle body. The second opening 135 is provided at a position overlapping at least a portion of the exhaust pipe 33 when viewed from the front of the vehicle body. As a result, outside air passes through the second opening 135 on the left side, allowing the outside air to flow around the power unit 11, the ACG sensor 150, and the exhaust pipe 33, thereby facilitating the cooling thereof.

As shown in FIG. 13 , the left third opening 136 is provided outside the front wall 121 in the vehicle width direction and below the lower left portion of the power unit 11 when viewed from the front of the vehicle body. The third opening 136 allows outside air to flow between the lower surface of the power unit 11 and the undercover 57, thereby facilitating the exhaustion of heat from the lower portion of the power unit 11 to the rear.

As described above, the undercover 57 has the right front cover portion 122F that functions as a pipe cover portion that covers at least a portion of the oil pipe 37P from the outside in the vehicle width direction. As a result, the oil pipe 37P can be protected even when the under cover 57 is separated from other vehicle body covers (the front side cover 53, etc.). In addition, since a special part for protecting the oil pipe 37P is not required, the number of parts can be reduced.

An ACG sensor 150 is provided on the opposite side of the right front cover portion 122F in the vehicle width direction, and the under cover 57 includes a left front cover portion 123F that functions as a sensor cover portion that covers at least a portion of the ACG sensor 150 from the outside in the vehicle width direction. have. As a result, the ACG sensor 150 can be protected, and a special component for protecting the ACG sensor 150 is no longer required, thereby reducing the number of components. The configuration is not limited to the configuration including both the right front cover portion 122F functioning as the pipe cover portion and the left front cover portion 123F functioning as the sensor cover portion, and a configuration including only one of the cover portions may be employed.

Further, the under cover 57 has a front wall 121, and since the front wall 121 is provided with the first opening 131, the outside air from the front is allowed to flow into the rear of the front wall 121, and the lower part of the power unit 11 and its surroundings are exposed. It becomes easier to flow around the members (exhaust pipe 33, etc.).
Moreover, since the wind direction adjustment plate 132 is provided in the first opening 131, the outside air flowing in from the first opening 131 can be adjusted in a suitable direction. Also, the wind direction adjusting plate 132 makes it difficult for foreign matter from the front to pass through the first opening 131 . Since the wind direction adjusting plate 132 is inclined rearward and upward, it becomes easier for outside air to flow around the power unit 11 and the like positioned obliquely rearward of the front wall 121 .

Further, since the right front cover portion 122F has a second opening 133 that opens toward the front of the vehicle body below the oil pipe 37P, the running wind flows around the oil pipe 37P, making it easier to cool the oil pipe 37P.
In addition, since the left and right side walls 122, 123 of the undercover 57 have third openings 134, 136 overlapping at least a part of the exhaust pipe 33 when viewed from the side of the vehicle body, external air passing through the third openings 134, 136 , the exhaust pipe 33 and its surroundings can be easily cooled.

Further, the under cover 57 has recesses 144, 146 that are recessed inward in the vehicle width direction toward the exhaust pipe 33, and the recesses 144, 146 are provided with third openings 134, 136. Outside air can easily flow around the exhaust pipe 33.

Note that the above-described embodiment is one aspect of the present invention, and the present invention is not limited to the above-described embodiment. For example, although the case where the present invention is applied to the motorcycle 1 shown in FIG. 1 has been described, it is not limited to this, and in addition to motorcycles including scooter types, straddle-type vehicles including three-wheeled and four-wheeled types. The present invention may be applied.

1 Motorcycle (saddle type vehicle)
3a rear wheel axle 10 vehicle body frame 11 power unit 13A to 13C support portion 30 crankcase 31 cylinder portion 33 exhaust pipe 34 muffler 37 oil cooler 37P oil pipe 51 vehicle body cover (exterior member)
54 shroud 55 side cover (exterior member)
57 Under cover 61 Hugger fender (cover member)
62 Rear fender 71 Sally guard (rear wheel cover)
72 skeleton member 73 resin cover 73A first cover 73B second cover 73C third cover 73D fourth cover 73E fifth cover 73H, 73J through hole 73X fixing part 73Y through hole 74 main skeleton member 74A first straight part 74B second Straight portion 74C Third straight portion 74D Fourth straight portion 75 Sub-skeletal member 77A First stay 77B Second stay 77C Third stay 80A-80C Brackets 81-83, 93 Fastening member 91 Outer shroud 92 Inner shroud 92A, 92W, 132 Wind direction adjustment plate 92K, 112 Opening 100 Ignition coil (electrical component)
110 mesh member 110A first mesh member 110B second mesh member 111 cover 115 battery (electrical component)
121 front wall 122 right side wall 122F right front cover portion (piping cover portion)
122R Right rear cover portion 123 Left side wall 123F Left front cover portion (sensor cover portion)
123R left rear cover portion 131 first opening 133, 135 second opening 134, 136 third opening 141 pipe connection portion 143 to 146 recess 150 ACG sensor (sensor unit)
LM Vehicle width direction center line

Claims (7)

A swing arm (13) connected to a vehicle body, a rear wheel (3) supported by the swing arm (13), and a rear wheel cover portion (71) covering at least the upper side of the rear wheel (3). In a saddle-ride type vehicle comprising:
The rear wheel cover portion (71) has a metal frame member (72) supported by the swing arm (13) and a resin cover (73) supported by the frame member (72). ,
The resin cover (73) is located outside the frame member (72) in the vehicle width direction and is above the swing arm (13) and is larger than the frame member (72) in the front-rear and vertical directions. is a cover,
The portion of the frame member (72) that covers the side of the rear wheel (3) above the swing arm (13) is positioned inside the resin cover (73) in the vehicle width direction and It is arranged only in the area overlapping with the manufactured cover (73) in the vehicle width direction ,
The frame member (72) includes a first straight portion (74A) extending upward from the upper surface of the swing arm (13) and a second straight portion (74B) extending rearward from the upper end of the first straight portion (74A). and a third straight portion (74C) extending downward from the rear end of the second straight portion (74B),
The resin cover (73) includes a first cover (73A) that extends along the first straight portion (74A) in a side view of the vehicle body and covers the first straight portion (74A) from the outside in the vehicle width direction; A second cover (73B) extending along the second straight portion (74B) in a side view and covering the second straight portion (74B) from the outside in the vehicle width direction; ) and covers a portion of the third straight portion (74C) above the upper surface of the swing arm (13) from the outside in the vehicle width direction.
A straddle-type vehicle characterized by : The straddle-type vehicle according to claim 1, wherein at least one of the plurality of end portions of the frame member (72) is within the range of the resin cover (73) when viewed from the side of the vehicle body. The saddle-ride type according to claim 1 or 2, wherein at least one of the plurality of ends of the frame member (72) is positioned forward of the rear wheel shaft (3a) of the saddle-ride type vehicle. vehicle. The straddle-type vehicle according to claim 3, wherein at least one of the plurality of end portions of the frame member (72) is positioned rearward of the rear wheel axle (3a). The straddle-type vehicle according to any one of claims 1 to 4, wherein a portion of the frame member (72) on the rear side of the vehicle body is located rearward of the swing arm (13). The swing arm (13) is provided with upper and lower support portions (13A, 13B) for supporting the frame member (72),
The frame member (72) extends rearward of the swing arm (13) from the support portion (13A) on the upper side, extends below the swing arm (13), and extends below the swing arm (13). 6. The straddle-type vehicle according to any one of claims 1 to 5, wherein the saddle-ride type vehicle extends forward and is supported by the lower support portion (13B). A cover member (61) which is separate from the rear wheel cover portion (71) and covers the rear wheel (3) from the front is provided between the rear wheel cover portion (71) and the cover member (61). 7. The saddle-ride type vehicle according to any one of claims 1 to 6, wherein the gap is within a predetermined range.

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