Saddle-riding type vehicle

Abstract

To provide a saddle-riding type vehicle which can suppress influences on a tire by making it shield heat release of a disc brake from a wheel.SOLUTION: In the saddle-riding type vehicle comprising a wheel (60) having a hub (61) and supported by an axle (13a), a brake disc (53) fitted to the hub (61), a brake caliper (54) capable of clamping the brake disc (53); and a wheel cover (80) retained between the hub (61) and the brake disc (53) to cover a side face of the wheel (60), the wheel cover (80) is formed larger than the brake disc (53) to form a gap (S1) at an outer peripheral end (84a) across the wheel (60), the wheel cover (80) being provided with vent holes (83a, 83b, 83c) penetrating a cover face (83) in a direction of the axle (13a).SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a saddle-ride type vehicle. [Background technology]

[0002] Conventionally, saddle-type vehicles provided with a cover structure that covers the wheel are known (see, for example, Patent Document 1). In Patent Document 1, a brake disc is supported on the hub of the wheel, and a heat dissipation member shaped to cover the hub from the side is provided between the hub and the brake disc. In Patent Document 1, this heat dissipation member, which has a smaller diameter than the brake disc, facilitates dissipation of frictional heat generated by the brake disc, thereby cooling the brake disc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-20319 Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology described in Patent Document 1, the brake disc is cooled by radiating heat, but the heat radiated from the brake disc is transferred to the wheel, and the heat transferred via the wheel may affect the tire. The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a saddle-ride type vehicle that can easily shield the heat dissipated by the disc brake from the wheel and reduce the impact on the tire. [Means for solving the problem]

[0005] A saddle-ride type vehicle is provided with a wheel having a hub and supported on an axle, a brake disc attached to the hub, a brake caliper capable of clamping the brake disc, and a wheel cover held between the hub and the brake disc and covering the side of the wheel, wherein the wheel cover is formed larger than the brake disc, forming a gap between it and the wheel at its outer peripheral edge, and the wheel cover is provided with air vents that penetrate the cover surface in the direction of the axle. [Effects of the Invention]

[0006] A saddle-ride type vehicle can be provided that can easily shield the heat radiation of the disc brake from the wheel and suppress the effect on the tire. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a side view of a saddle-ride type vehicle according to an embodiment of the present invention. [Figure 2] FIG. 2 is a right side view of the saddle-ride type vehicle with the front fender removed, showing the area around the front wheel. [Figure 3] FIG. 2 is a right side view of the front wheel showing the state in which the brake disc is attached. [Figure 4] FIG. 4 is a right side view of the front wheel, showing a state in which the right brake disc is removed from FIG. 3. [Figure 5] FIG. 5 is a right side view of the front wheel with the left and right wheel covers and the brake disc removed from FIG. 4. [Figure 6] FIG. 10 is a right side view of the right wheel cover. [Figure 7] FIG. 2 is a perspective view of the right wheel cover as seen from the right rear. [Figure 8] FIG. 10 is a left side view of the right wheel cover. [Figure 9] FIG. 10 is a perspective view of the right wheel cover as seen from the rear left. [Figure 10] FIG. 10 is an enlarged perspective view of a fastening member accommodating portion of the outer fastening portion. [Figure 11] FIG. 2 is a front view of the wheel cover showing the assembled state of the wheel cover. [Figure 12] FIG. 10 is an enlarged perspective view of the contact surface of the outer fastening portion. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description, directions such as front, rear, left, right, up and down are the same as directions relative to the vehicle body unless otherwise specified. In addition, in each drawing, the symbol FR indicates the front of the vehicle body, the symbol UP indicates the upper side of the vehicle body, and the symbol LH indicates the left side of the vehicle body.

[0009] [Embodiment Mode] FIG. 1 is a side view of a saddle-ride type vehicle 10 according to an embodiment of the present invention. The saddle-ride type vehicle 10 is a vehicle that includes a body frame 11, a power unit 12 supported by the body frame 11, a front fork 14 that supports a front wheel 13 so as to be steerable, a swing arm 16 that supports a rear wheel 15, and a seat 17 for a passenger. The saddle-ride type vehicle 10 is a vehicle in which a passenger sits astride a seat 17. The seat 17 is provided above the rear part of the body frame 11.

[0010] The body frame 11 includes a head pipe 18 provided at the front end of the body frame 11, a front frame 19 located rearward of the head pipe 18, and a rear frame 20 located rearward of the front frame 19. The front end of the front frame 19 is connected to the head pipe 18. The seat 17 is supported by a rear frame 20 .

[0011] The front forks 14 are supported by a head pipe 18 so as to be steerable to the left and right. The front wheel 13 is supported by an axle 13a provided at the lower end of the front forks 14. A steering handle 21 that is held by the rider is attached to the upper end of the front forks 14.

[0012] The swing arm 16 is supported by a pivot shaft 22 that is supported by the body frame 11. The pivot shaft 22 is a shaft that extends horizontally in the vehicle width direction. The pivot shaft 22 is inserted into the front end of the swing arm 16. The swing arm 16 swings up and down around the pivot shaft 22. The rear wheel 15 is supported by an axle 15 a provided at the rear end of the swing arm 16 .

[0013] The power unit 12 is disposed between the front wheels 13 and the rear wheels 15 and is supported by the body frame 11. The power unit 12 is an internal combustion engine. The power unit 12 includes a crankcase 23 and a cylinder section 24 that houses a reciprocating piston. An exhaust device 25 is connected to an exhaust port of the cylinder section 24. The output of the power unit 12 is transmitted to the rear wheels 15 by a driving force transmission member that connects the power unit 12 and the rear wheels 15 .

[0014] The saddle-ride type vehicle 10 also includes a front fender 26 that covers the front wheel 13 from above, a rear fender 27 that covers the rear wheel 15 from above, a step 28 on which a rider places their feet, and a fuel tank 29 that stores fuel used by the power unit 12. The front fender 26 is attached to the front fork 14. The rear fender 27 and the step 28 are provided below the seat 17. The fuel tank 29 is supported by the body frame 11.

[0015] In this embodiment, the rear fender 27 has a first rear fender 27a that is supported behind the seat 17 and covers the rear wheel 15 from above, and a hugger fender (second rear fender) 27b that is supported by the swing arm 16 and covers the rear wheel 15 from above on the front side.

[0016] The front fork 14 has a steering stem (not shown) inserted through the head pipe 18. The steering stem is rotatably supported by the head pipe 18. A top bridge 32 is provided at the upper end of the steering stem. A bottom bridge 33 is provided at the lower end of the steering stem. A pair of left and right fork tubes 34 are supported by the top bridge 32 and the bottom bridge 33. The fork tubes 34 extend downward and forward. In this embodiment, the fork tubes 34 are telescopic shock absorbers that incorporate a spring and a damper.

[0017] In detail, the fork tube 34 has an upper tube 35 supported by the top bridge 32 and the bottom bridge 33, a lower tube 36 arranged below the upper tube 35 and supported slidably on the upper tube 35, and an axle support member 37 fixed to the lower end of the lower tube 36.

[0018] The axle support member 37 integrally includes a caliper bracket portion 37a (see FIG. 2) and a fender support portion 37b (see FIG. 2). The axle 13a is inserted through the left and right axle support members 37. The axle 13a is supported in a spanning state between the left and right axle support members 37. The front wheel 13 is rotatably supported by the front fork 14 via the axle 13a. The front wheel 13 is disposed between the pair of left and right fork tubes 34.

[0019] The front fork 14 of this embodiment is made up of a steering stem (not shown), a top bridge 32, a bottom bridge 33, and a pair of left and right fork tubes 34. The saddle-ride type vehicle 10 includes a body cover 40. The body cover 40 covers a body that is configured by the body frame 11, the power unit 12, and the like.

[0020] FIG. 2 is a right side view of the saddle-ride type vehicle 10 showing the area around the front wheel 13 with the front fender 26 removed. The front wheels 13 are braked by a front wheel braking device 50. In this embodiment, the front wheel braking device 50 is a double-disc type equipped with a left (one side in the vehicle width direction) disc brake 51 (see FIG. 1) and a right (other side in the vehicle width direction) disc brake 52 (see FIG. 2).

[0021] The left and right disc brakes 51, 52 have the same basic structure. Each of the left and right disc brakes 51, 52 includes a brake disc 53 attached to the front wheel 13 and a brake caliper 54 that can clamp the brake disc 53 and apply braking. The brake disc 53 in this embodiment is formed in a circular plate shape. The brake disc 53 in this embodiment is formed with a diameter larger than half the outer diameter of the front wheel 13. A plurality of fixing holes 53a are formed in the radial center of the brake disc 53. In this embodiment, six fixing holes 53a are formed. The fixing holes 53a are formed at equal intervals in the circumferential direction. The brake disc 53 is attached to the wheel 60 of the front wheel 13 by bolts (not shown) that are inserted into the fixing holes 53a.

[0022] The brake caliper 54 is supported by a caliper bracket portion 37a of the axle support member 37. A brake hose 55 is connected to the brake caliper 54.

[0023] The rotation speed of the front wheel 13 is detected by a wheel speed detection device (not shown). This wheel speed detection device includes an annular pulser ring that rotates integrally with the front wheel 13, and a pickup sensor that detects the rotation of the pulser ring.

[0024] Fig. 3 is a right side view of the front wheel 13 with the brake disc 53 attached. Fig. 4 is a right side view of the front wheel 13 with the right brake disc 53 removed from Fig. 3. Fig. 5 is a right side view of the front wheel 13 with the wheel covers 80 on both the left and right sides and the brake disc 53 removed from Fig. 4. In Fig. 4, the wheel cover 80 is shown shaded. In Fig. 5, the wheel 60 is shown shaded.

[0025] In the following description, the forward rotation direction refers to the direction in which the front wheel 13 rotates when the saddle-ride type vehicle 10 moves forward. The opposite direction is referred to as the rearward rotation direction. In the drawings, the forward rotation direction is indicated by arrow R1, and the rearward rotation direction is indicated by arrow R2. The axial direction of the axle 13a is simply referred to as the axial direction. Furthermore, in this embodiment, the axial direction and vehicle width direction are used when the saddle-ride type vehicle 10 moves straight in an upright position. Therefore, in this embodiment, the axial direction and the vehicle width direction are the same direction.

[0026] The front wheel 13 includes a wheel 60 rotatably supported on an axle 13 a and a tire 70 supported on the wheel 60 . As shown in Figure 5, the wheel 60 comprises a hub 61 rotatably supported on the axle 13a, a rim 62 arranged coaxially with the hub 61 and on which the tire 70 is attached, and a plurality of spokes (not shown) connecting the hub 61 and the rim 62.

[0027] The hub 61 has an external appearance of a cylindrical shape with a bottom extending in the vehicle width direction. The hub 61 has an outer peripheral wall portion 63 corresponding to the side surface of the cylindrical shape with a bottom, and a pair of left and right side wall portions 64 corresponding to the bottom surface of the cylindrical shape with a bottom. A shaft tube portion 65 that protrudes outward in the vehicle width direction at the radial center of the pair of left and right side wall portions 64 is formed in the pair of left and right side wall portions 64. The pair of left and right shaft tube portions 65 are in communication in the axial direction. The axle 13a (see FIG. 1) is inserted through the shaft tube portion 65. A disc fastening portion 66 that protrudes in the radial direction is formed on the outer peripheral side of the shaft tube portion 65. The disc fastening portion 66 is formed in a pedestal shape that protrudes outward in the vehicle width direction relative to the side wall portions 64. In this embodiment, three disc fastening portions 66 are formed. The disc fastening portions 66 are formed at equal intervals in the circumferential direction. A fastening hole 66a extending in the vehicle width direction is formed in the disc fastening portion 66.

[0028] Fig. 6 is a right side view of the right wheel cover 80. Fig. 7 is a perspective view of the right wheel cover 80 as seen from the right rear. Fig. 8 is a left side view of the right wheel cover 80. Fig. 9 is a perspective view of the right wheel cover 80 as seen from the left rear. Figs. 8 and 9 show the inner surface of the right wheel cover 80 in the vehicle width direction, and show the reverse side of Figs. 6 and 7.

[0029] A wheel cover 80 is attached to the side of the wheel 60. The wheel cover 80 is a cover member that entirely covers the side of the wheel 60. In other words, the wheel cover 80 is a cover member that covers the wheel 60 from the outside in the vehicle width direction, from the hub 61 to the rim 62. In this embodiment, wheel covers 80 are attached to the left and right of the wheel 60 according to the left and right disc brakes 51, 52. The right wheel cover 80 and the left wheel cover 80 have the same basic structure. The left and right wheel covers 80 are basically configured symmetrically.

[0030] The wheel cover 80 is formed in a circular plate shape with projections and depressions. The wheel cover 80 of this embodiment is formed in a circular shape in a side view (viewed in the axial direction of the axle 13a). The outer diameter of the wheel cover 80 of this embodiment is smaller than the outer diameter of the wheel 60 and larger than the outer diameter of the brake disc 53. An outer peripheral edge 84a of the wheel cover 80 forms a gap S1 between itself and the wheel 60 in a side view (see FIGS. 2 to 4).

[0031] As shown in Figure 6, the wheel cover 80 has an inner peripheral portion 81 formed radially toward the center, a tapered portion 82 formed radially outside the inner peripheral portion 81, a connecting portion (cover surface) 83 formed radially outside the tapered portion 82, and an outer peripheral portion 84 formed radially outside the connecting portion 83.

[0032] A central hole 81a penetrating in the axial direction is formed at the radial center of the inner circumferential portion 81. A plurality of piece-shaped fastening portions (center-side fixing portions) 85 protruding radially inward are formed at the radially inner end of the inner circumferential portion 81. In this embodiment, three fastening portions 85 are formed. The fastening portions 85 are formed at equal intervals in the circumferential direction. The fastening portions 85 are formed with fixing holes 85a penetrating in the vehicle width direction. For example, a nut (not shown) is attached to the inner surface of the fastening portions 85 in the vehicle width direction. This allows a fastening member inserted through the fixing hole 85a to be fastened to the fastening portions 85. A tube holding portion 85b bent outward in the vehicle width direction is formed at the radially inner end of the fastening portion 85. The axle tube portion 65 of the hub 61 is inserted into the space surrounded by the plurality of tube holding portions 85b, i.e., the central hole 81a. Furthermore, the disc fastening portion 66 of the hub 61 can enter into the space sandwiched between the fastening portions 85 in the circumferential direction.

[0033] The tapered portion 82 has an annular shape in a side view. The tapered portion 82 has a tapered shape that inclines toward the center in the vehicle width direction as it moves radially outward. The tapered portion 82 has a plurality of protrusions (first convex portions) 86 formed at equal intervals in the circumferential direction. The protrusions 86 in this embodiment are fin-shaped. That is, the protrusions 86 have a so-called streamlined outer shape. The protrusions 86 are formed in a shape in which the inner surface of the tapered portion 82 in the vehicle width direction is recessed and protrudes outward in the vehicle width direction.

[0034] In this embodiment, the protrusion 86 has an inner end surface 86a on the radially inner side, an outer end surface 86b extending from the radial outer end of the inner end surface 86a to the rear in the direction of rotation, and a connection surface 86c extending from the vehicle width outer ends of the inner end surface 86a and the outer end surface 86b and connected to the tapered portion 82.

[0035] The inner end surface 86a is formed like a vertical wall relative to the outer surface of the tapered portion 82. The inner end surface 86a is a wall surface that extends along the axial direction. More specifically, the inner end surface 86a is slightly inclined radially outward as it progresses in the axial direction. The inner end surface 86a extends in the tangential direction of a circle concentric with the wheel cover 80. This makes it easier for the inner end surface 86a to cross the tapered portion 82 while maintaining a sufficient length compared to when it extends radially. The amount by which the inner end surface 86a protrudes relative to the tapered portion 82, i.e., its axial length, increases as it progresses radially outward.

[0036] The outer end surface 86b is formed like a standing wall relative to the tapered portion 82. The outer end surface 86b is a wall surface along the axial direction. The amount of protrusion of the outer end surface 86b relative to the tapered portion 82 decreases as the outer end surface 86b moves rearward in the rotational direction. The connecting surface 86c protrudes less from the tapered portion 82 as it moves radially outward.

[0037] A connecting portion 83 is formed radially outward of the tapered portion 82. The connecting portion 83 has first leg portions 87 formed at equal intervals in the circumferential direction and second leg portions 88 formed between a predetermined pair of the first leg portions 87. The first leg portions 87 extend in the radial direction. The first leg portions 87 extend from the radial outer end of the tapered portion 82 and are connected to the radial inner end of the outer circumferential portion 84. In this embodiment, eight first leg portions 87 are formed. At the radial inner end of the first leg portions 87, the circumferential width gradually increases as the first leg portions 87 move radially inward. At the radial outer end of the first leg portions 87, the circumferential width gradually increases as the first leg portions 87 move radially outward.

[0038] The second leg portions 88 extend in the radial direction. The second leg portions 88 extend from the radial outer end of the tapered portion 82 and are connected to the radial inner end of the outer circumferential portion 84. The second leg portions 88 are formed adjacent to a predetermined first leg portion 87. In this embodiment, four second leg portions 88 are formed. Therefore, the second leg portions 88 are formed at equal intervals in the circumferential direction.

[0039] In adjacent legs 87, 88, a first vent hole 83a is formed by the surrounding shape of the first leg portion 87 on the front side in the rotational direction, the first leg portion 87 on the rear side in the rotational direction, the tapered portion 82, and the outer periphery 84. In addition, in adjacent legs 87, 88, a second vent hole 83b is formed by the surrounding shape of the second leg portion 88 on the front side in the rotational direction, the first leg portion 87 on the rear side in the rotational direction, the tapered portion 82, and the outer periphery 84. In addition, in adjacent legs 87, 88, a third vent hole 83c is formed by the surrounding shape of the first leg portion 87 on the front side in the rotational direction, the second leg portion 88 on the rear side in the rotational direction, the tapered portion 82, and the outer periphery 84.

[0040] In other words, first ventilation holes 83a, second ventilation holes 83b, and third ventilation holes 83c are formed at predetermined intervals in the circumferential direction in the connecting portion 83. As a result, the connecting portion 83 is formed with a plurality of first leg portions 87 and a plurality of second leg portions 88.

[0041] The second leg portion 88 is formed with outer fastening portions (outer fixing portions) 89 that are recessed inward in the vehicle width direction and protrude inward in the vehicle width direction. The outer fastening portions 89 are formed on the second leg portion 88 and are formed at equal intervals in the circumferential direction. In this embodiment, the number of outer fastening portions 89 differs from the number of fastening portions 85. Four outer fastening portions 89 are formed. The outer fastening portions 89 are basically offset in position in the circumferential direction relative to the fastening portions 85. Note that in FIG. 8, lines L1, L2, and L3 extending radially from the fastening portion 85 indicate positions that are in the same circumferential position as the respective fastening portions 85.

[0042] The outer fastening portion 89 has a fin shape extending in the circumferential direction in side view. In this embodiment, the outer fastening portion 89 has a substantially elliptical shape in side view. The term "substantially elliptical shape" refers to a shape having a longitudinal shape, in which a major axis that is the maximum length of the longitudinal shape and a minor axis that intersects the major axis at the longitudinal center and is the maximum length in the lateral direction can be defined. Therefore, the substantially elliptical shape is not limited to a shape having a curved outer shape, and a shape in which part of the outer shape is flat may also be used.

[0043] As shown in Fig. 9, the outer fastening portion 89 has a tubular portion 89a that has a generally elliptical cross section and protrudes inward in the vehicle width direction, and an abutment surface 89b that closes the inner end of the tubular portion 89a in the vehicle width direction. An insertion hole 89c that penetrates the abutment surface 89b in the vehicle width direction is formed. The tubular portion 89a and the abutment surface 89b form a fastening member accommodating portion 89d (see Fig. 10). The outer fastening portion 89 is inclined so that a major axis 89e (see Fig. 8) points radially outward as it progresses rearward in the direction of rotation.

[0044] FIG. 10 is an enlarged perspective view of the fastening member accommodating portion 89d of the outer fastening portion 89. As shown in FIG. A floating nut 100 is accommodated in the fastening member accommodating portion 89d. In this embodiment, a floating nut 100 is accommodated in all of the fastening member accommodating portions 89d of the left wheel cover 80. The floating nut 100 is fixed to the abutment surface 89b. In this embodiment, the floating nut 100 is riveted to the abutment surface 89b. The floating nut 100 has a fixed base portion 100a and a nut portion 100b supported on the base portion 100a so as to be movable within a predetermined range. The nut portion 100b can absorb misalignment of the axial center of the bolt 101 (see FIG. 12) by restricting the movable range relative to the base portion 100a.

[0045] As shown in Figures 6 to 9, an outer peripheral portion 84 (see Figure 6) is formed on the radially outer side of the connecting portion 83. The outer peripheral portion 84 has an annular shape in a side view. The outer peripheral portion 84 has a tapered shape that slopes outward in the vehicle width direction as it extends radially outward. In other words, the outer peripheral portion 84 is inclined with a slope that follows the side shape of the rim 62 of the wheel 60. The outer peripheral portion 84 can face the rim 62 of the wheel 60 (see Figures 4 and 11). Note that Figure 11 shows the shape of the rim 62 on only one side.

[0046] A plurality of bulging portions (second convex portions) 90 are formed at equal intervals in the circumferential direction on the outer peripheral portion 84. The bulging portions 90 bulge inward in the vehicle width direction from the inner surface of the outer peripheral portion 84. In other words, the bulging portions 90 bulge toward the rim 62 of the wheel 60. The bulging portions 90 are formed in a substantially elliptical shape in a side view. The bulging portions 90 are inclined so that their major axes 90a (see FIG. 8) become radially outward as they move rearward in the direction of rotation. The major axes 90a of the bulging portions 90 are inclined circumferentially more than the major axis 89e of the outer fastening portion 89.

[0047] Fig. 11 is a front view of the wheel cover 80, showing the assembled state of the wheel cover 80. Fig. 12 is an enlarged perspective view of the contact surface 89b of the outer fastening portion 89. Next, an example of a method for assembling the wheel cover 80 will be described. The left and right wheel covers 80 are disposed on the left and right sides of the wheel 60, respectively. The axle tube portion 65 of the hub 61 is inserted into the center hole 81a of the wheel cover 80. At this time, the angle of the rotational direction of the wheel cover 80 is adjusted so that the disc fastening portion 66 of the hub 61 enters between the fastening portions 85. With the disc fastening portion 66 entered between the fastening portions 85, the tube holding portion 85b of the wheel cover 80 abuts against the outer periphery of the axle tube portion 65. Therefore, the wheel cover 80 is held to the wheel 60 by the tube holding portion 85b. Furthermore, the outer fastening portions 89 of the left and right wheel covers 80 face each other.

[0048] In this state, a bolt 101, which is an example of a fastening member, is inserted into the outer fastening portion 89. In this embodiment, the bolt 101 is inserted from the right wheel cover 80. The bolt 101 passes from the right insertion hole 89c to the left insertion hole 89c and is fastened to the floating nut 100 of the left wheel cover 80. This fastens the right wheel cover 80 and the left wheel cover 80 together with a predetermined clearance. At this time, the head of the bolt 101 is accommodated in the fastening member accommodating portion 89d of the right outer fastening portion 89. Furthermore, the shank of the bolt 101 is accommodated in the fastening member accommodating portion 89d of the left outer fastening portion 89.

[0049] When the left and right wheel covers 80 are fastened together, the abutment surfaces 89b of the left and right outer fastening portions 89 abut against each other (see FIG. 11). Also, at the outer peripheral portion 84 of the wheel cover 80, a bulge portion 90 abuts against the rim 62 of the wheel 60. Therefore, the bulge portion 90 forms a gap S2 (see FIGS. 4 and 11) between the wheel cover 80 and the wheel 60. Furthermore, even if the radially outer end side of the wheel cover 80 tries to deform in the vehicle width direction, the bulge portion 90 makes it easier to maintain a constant gap S2 between the wheel cover 80 and the wheel 60.

[0050] Next, the brake disc 53 is attached to the wheel 60. A bolt (not shown) is inserted into a predetermined fixing hole 53a of the brake disc 53, and the brake disc 53 is fastened to the disc fastening portion 66 of the hub 61. A bolt (not shown) is also inserted into a predetermined fixing hole 53a of the brake disc 53, and the brake disc 53 is fastened to the fastening portion 85 of the wheel cover 80. Thus, the brake disc 53 is attached to the hub 61 of the wheel 60 while supporting the wheel cover 80. That is, in this embodiment, the wheel cover 80 is fastened to the hub 61 of the wheel 60 via the brake disc 53. Note that a pulser ring (not shown) is fastened together with the brake disc 53 on one of the left and right sides.

[0051] The wheel cover 80 is fastened by a fastening portion 85 on the radial center side and an outer fastening portion 89 on the radial outside, which are offset in the radial direction. This makes it easier to ensure the rigidity of the plate-shaped wheel cover 80. In particular, in this embodiment, the outer fastening portion 89 is basically offset in the circumferential direction relative to the fastening portion 85. This makes it easier to fasten the wheel cover 80 while suppressing unevenness in the fastening points across its entire surface. This further makes it easier to ensure the rigidity of the wheel cover 80. In addition, the number of fastening points increases the fastening rigidity of the wheel cover 80. The fastening portion 85 and the outer fastening portion 89 are radially spaced apart, which makes it easy for tolerances on one side to affect the other. However, the floating nut 100 provides a margin, which makes it easier to fasten the wheel 60 to the hub 61. In this manner, the left and right wheel covers 80 are attached to the wheels 60.

[0052] In the saddle-ride type vehicle 10, when the brake caliper 54 clamps the brake disc 53, the brake disc 53 becomes hot due to frictional heat and dissipates the heat. In the present embodiment, the wheel cover 80 entirely covers the side surface of the wheel 60, and therefore the wheel cover 80 easily blocks heat from the brake disc 53. Therefore, heat is less likely to be transmitted from the brake disc 53 to the wheel 60, and heat transmission from the brake disc 53 to the tire 70 is suppressed. In particular, in the case of a large-diameter brake disc 53 as in the present embodiment, the brake disc 53 is close to the tire 70. Therefore, heat is more likely to be transmitted from the brake disc 53 to the tire 70, but the wheel cover 80 makes it easier to suppress heat transmission to the tire 70.

[0053] Additionally, wind generated by running can enter between the wheel cover 80 and the brake disc 53. Due to the fin shape of the protrusion 86, when the front wheel 13 rotates, wind generated by running is collected on the inner end surface 86a side of the protrusion 86 between the wheel cover 80 and the brake disc 53, and the wind generated by running around the brake disc 53 is discharged radially outward, making it easier to properly cool the brake disc 53.

[0054] Furthermore, in this embodiment, a gap S2 (see FIGS. 4 and 11) that communicates with the gap S1 (see FIGS. 2, 4, and 11) is formed between the wheel cover 80 and the rim 62 of the wheel 60. This allows wind to easily pass in and out between the wheel cover 80 and the wheel 60 through the gaps S1 and S2. Wind that enters the gaps S1 and S2 is easily released radially outward due to the inclined fin shape of the outer fastening portion 89 and the generally elliptical inclined shape of the bulging portion 90. This makes it difficult for hot air to remain between the wheel 60 and the wheel cover 80.

[0055] Furthermore, the wheel cover 80 is formed with ventilation holes 83a to 83c. The radially inner sides of the ventilation holes 83a to 83c are covered from the outside in the vehicle width direction by the brake disc 53. Therefore, the radially outer parts of the ventilation holes 83a to 83c are communicated to the left and right. As a result, even when the wheel cover 80 is provided to entirely cover the side surface of the wheel 60, air can pass through the wheel cover 80 to the left and right. This contributes to the steering stability of the saddle-ride type vehicle 10 when cornering.

[0056] As described above, according to this embodiment to which the present invention is applied, in a saddle-ride vehicle equipped with a wheel 60 having a hub 61 and supported on an axle 13a, a brake disc 53 attached to the hub 61, a brake caliper 54 capable of clamping the brake disc 53, and a wheel cover 80 held between the hub 61 and the brake disc 53 and covering the side of the wheel 60, the wheel cover 80 is formed larger than the brake disc 53, and forms a gap S1 between itself and the wheel 60 at its outer peripheral end 84a, and the wheel cover 80 is provided with air vents 83a, 83b, and 83c at the connection portion 83 that penetrate in the direction of the axle 13a. According to this configuration, the ventilation holes 83a, 83b, 83c can easily cover the entire side surface of the wheel 60 while ensuring steering stability. Therefore, it is possible to provide a saddle-ride type vehicle 10 that can easily shield the heat dissipated by the disc brakes 51, 52 from the wheel 60 and suppress the impact of the heat dissipated by the disc brakes 51, 52 on the tire 70. An object of the present invention is to provide a saddle-ride type vehicle that can easily shield the heat dissipated by the disc brakes from the wheel and suppress the impact on the tire.

[0057] In this embodiment, the wheel cover 80 is provided with a protrusion 86 that extends in the circumferential direction of the axle 13a on the radially outer side of the axle 13a. According to this configuration, the protrusion 86 is provided so as to extend circumferentially not from the center of the axle 13a but from a position spaced a predetermined distance from the axle 13a, making it easier to ensure the circumferential length of the protrusion 86. Therefore, when the wheel 60 rotates, air can be easily directed along the protrusion 86, allowing the brake disc 53 to be cooled appropriately.

[0058] In this embodiment, the protrusion 86 has a fin shape. According to this configuration, the air exhaust effect of the protrusion 86 can be improved.

[0059] In this embodiment, the wheel cover 80 has a bulging portion 90 on the inner surface of the outer circumferential portion 84 that protrudes toward the wheel 60 . According to this configuration, the bulge portion 90 makes it easier to maintain the gap S2 between the wheel 60 and the wheel cover 80, ensuring that air can flow in and out between the wheel 60 and the wheel cover 80, making it easier to improve the heat dissipation effect of the wheel 60.

[0060] In this embodiment, the wheel cover 80 has a fastening portion 85 on the radially central side and an outer fastening portion 89 provided radially outward of the fastening portion 85 . This configuration makes it easier to ensure the rigidity of the wheel cover 80 and to improve the fixing strength.

[0061] In addition, in this embodiment, a pair of wheel covers 80 are provided on the left and right sides of the wheel 60, and each of the pair of left and right wheel covers 80 has a fastening portion 85 fixed to the hub 61, and the outer fastening portions 89 of the opposing wheel covers 80 are fixed to each other in a floating manner. This configuration improves the workability of fixing the fastening portion 85 and the outer fastening portion 89, which are located at different radial positions.

[0062] In this embodiment, the outer fastening portion 89 protrudes toward the opposing wheel cover 80, and has a fin shape that extends in the circumferential direction when viewed in the axial direction of the axle 13a. According to this configuration, it is possible to add a wind exhaust effect to the outer fastening portion 89 that is fixed in a floating state.

[0063] In addition, in this embodiment, multiple fastening portions 85 are provided at intervals in the circumferential direction, multiple outer fastening portions 89 are provided at intervals in the circumferential direction, and at least one outer fastening portion 89 is circumferentially offset from the circumferential position of the fastening portion 85. This configuration can prevent unevenness in the circumferential direction of the fastening points compared to when the fastening portions 85 and the outer fastening portions 89 are all provided at the same circumferential position. This makes it easier to fasten the entire surface of the wheel cover 80 with the central fastening portion 85 and the outer fastening portion 89, making it easier to ensure the rigidity of the wheel cover 80 and improve the fastening strength.

[0064] [Other embodiments] The above-described embodiment merely shows one aspect of the present invention, and any modifications and applications are possible without departing from the spirit of the present invention.

[0065] In the above embodiment, the wheel cover 80 is fastened to the hub 61 of the wheel 60 via the brake disc 53, but this is not limiting. For example, a fastening portion may be provided between the disc fastening portions 66 of the hub 61 in the circumferential direction, and the wheel cover 80 may be fastened directly to the fastening portion of the hub 61.

[0066] In the above embodiment, the wheel cover 80 is provided on both the left and right sides of the wheel 60, but the wheel cover 80 may be provided on only one side. For example, if a disc brake is provided on only one side, the wheel cover 80 may be provided on only one side.

[0067] In the above embodiment, a motorcycle having a front wheel 13 and a rear wheel 15 has been used as an example of the saddle-ride vehicle 10, but the present invention is not limited to this, and can be applied to a three-wheel saddle-ride vehicle having two front or two rear wheels, or a saddle-ride vehicle having four or more wheels.

[0068] [Configuration supported by the above embodiment] The above embodiment supports the following configurations.

[0069] (Configuration 1) A saddle-ride type vehicle comprising a wheel having a hub and supported on an axle, a brake disc attached to the hub, a brake caliper capable of clamping the brake disc, and a wheel cover held between the hub and the brake disc and covering the side of the wheel, wherein the wheel cover is formed larger than the brake disc, forming a gap between it and the wheel at its outer peripheral end, and the wheel cover is provided with air vents on the cover surface that penetrate in the direction of the axle. This configuration makes it easy to cover the entire side of the wheel while ensuring steering stability with the ventilation holes, thereby providing a saddle-type vehicle that can easily shield the wheel from heat dissipation from the disc brake and reduce the impact on the tire.

[0070] (Configuration 2) The saddle-ride type vehicle according to Configuration 1, wherein the wheel cover is provided with a first protrusion extending in the circumferential direction of the axle on the radially outer side of the axle. With this configuration, the first protrusion extends circumferentially from a position a predetermined distance away from the axle, rather than from the center of the axle, making it easier to ensure the circumferential length of the first protrusion.As a result, when the wheel rotates, air can be more easily directed along the first protrusion, allowing the brake disc to be properly cooled.

[0071] (Configuration 3) The saddle-ride type vehicle according to configuration 2, wherein the first protrusion is fin-shaped. According to this configuration, the air exhaust effect of the first convex portion can be improved.

[0072] (Configuration 4) A saddle-type vehicle according to any one of configurations 1 to 3, characterized in that a second protrusion protruding toward the wheel is provided on the inner surface of the outer periphery of the wheel cover. According to this configuration, the second convex portion makes it easier to maintain a gap between the wheel and the wheel cover, ensuring that air can flow in and out between the wheel and the wheel cover, making it easier to improve the heat dissipation effect of the wheel.

[0073] (Configuration 5) A saddle-type vehicle according to any one of configurations 1 to 4, characterized in that the wheel cover has a central fixing portion on the radial center side and an outer fixing portion provided radially outward from the central fixing portion. This configuration makes it easier to ensure the rigidity of the wheel cover and to improve the fixing strength.

[0074] (Configuration 6) A saddle-type vehicle as described in Configuration 5, characterized in that the wheel covers are provided in pairs on the left and right sides of the wheel, and the center fixing portion of each of the pair of left and right wheel covers is fixed to the hub, and the outer fixing portions of the opposing wheel covers are fixed in a floating manner. This configuration improves the workability of the fixing operation of the central fixing portion and the outer fixing portion, which are located at different radial positions.

[0075] (Configuration 7) A saddle-type vehicle as described in Configuration 6, characterized in that the outer fixing portion protrudes toward the opposing wheel cover, and the outer fixing portion has a fin shape extending circumferentially when viewed in the axial direction of the axle. According to this configuration, the floating fixed outer fixed portion can have an air exhaust effect.

[0076] (Configuration 8) A saddle-type vehicle as described in any one of configurations 5 to 7, characterized in that the central fixing portion is provided in a plurality of pieces spaced apart in the circumferential direction, the outer fixing portion is provided in a plurality of pieces spaced apart in the circumferential direction, and at least one of the outer fixing portions is circumferentially offset from the circumferential position of the central fixing portion. This configuration reduces the unevenness of the fixing points in the circumferential direction compared to when the center fixing part and the outer fixing part are all provided at the same position in the circumferential direction, making it easier to fix the entire surface of the wheel cover with the center fixing part and the outer fixing part, making it easier to ensure the rigidity of the wheel cover and to improve the fixing strength. [Explanation of symbols]

[0077] 10 Saddle-type vehicle 13a axle 53 Brake disc 54 Brake caliper 60 wheels 61 Hub 80 Wheel Cover 83 Connection part (cover surface) 83a Ventilation hole 83b Ventilation hole 83c Ventilation hole 84 Outer periphery 84a Outer edge 85 Fastening part (center side fixed part) 86 Protrusion (first protrusion) 89 Outer fastening part (outer fixing part) 90 Bulging portion (second convex portion) S1 Gap

Claims

1. A saddle-ride type vehicle including a wheel (60) having a hub (61) and supported on an axle (13a), a brake disc (53) attached to the hub (61), a brake caliper (54) capable of clamping the brake disc (53), and a wheel cover (80) held between the hub (61) and the brake disc (53) and covering a side surface of the wheel (60), The wheel cover (80) is formed larger than the brake disc (53) and forms a gap (S1) between the wheel (60) and an outer peripheral end (84a), The wheel cover (80) is provided with ventilation holes (83a, 83b, 83c) that penetrate the cover surface (83) in the direction of the axle (13a). A saddle-type vehicle characterized by:

2. The wheel cover (80) is provided with a first protrusion (86) extending in the circumferential direction of the axle (13a) on the radially outer side of the axle (13a).

2. The saddle-ride type vehicle according to claim 1.

3. The first protrusion (86) is fin-shaped.

3. The saddle-ride type vehicle according to claim 2.

4. A second protrusion (90) protruding toward the wheel (60) is provided on the inner surface of the outer periphery (84) of the wheel cover (80).

2. The saddle-ride type vehicle according to claim 1.

5. The wheel cover (80) has a central fixing portion (85) on the radially central side and an outer fixing portion (89) provided radially outward of the central fixing portion (85).

2. The saddle-ride type vehicle according to claim 1.

6. The wheel covers (80) are provided in pairs on the left and right sides of the wheel (60), The pair of left and right wheel covers (80) are fixed to the hub (61) at the center fixing portion (85) and the outer fixing portions (89) of the opposing wheel covers (80) are fixed to each other in a floating manner.

6. The saddle-ride type vehicle according to claim 5.

7. The outer fixing portion (89) projects toward the opposing wheel cover (80), The outer fixing portion (89) has a fin shape extending in the circumferential direction when viewed in the axial direction of the axle (13a).

7. The saddle-ride type vehicle according to claim 6.

8. The center side fixing portion (85) is provided in a plurality at intervals in the circumferential direction, The outer fixing portion (89) is provided in a plurality at intervals in the circumferential direction, At least one of the outer fixing portions (89) is offset in the circumferential direction from the circumferential position of the central fixing portion (85).

8. A saddle-ride type vehicle according to claim 5, wherein the vehicle is a saddle-ride type vehicle.

Images