JP6371698B2 - Saddle riding vehicle - Google Patents

Description

The present invention relates to both a straddle-type vehicle.

  In a motorcycle, an air valve for injecting air into a tire is provided on an inner peripheral surface of a wheel rim. The air valve is known to protrude in the axial direction from the inner peripheral surface of the rim (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 61-133408

  However, other parts such as a brake disk, a sprocket, and a muffler are disposed around the wheel. When performing the operation | work which inject | pours air into a tire, the nozzle of an air injection apparatus is connected to the injection port of an air valve. Here, if other parts are placed near the air valve, the space for connecting the nozzle to the inlet may be narrow, making it difficult to connect the nozzle to the inlet, and the types of nozzles used are also limited. Therefore, there was a problem that workability deteriorated.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve workability when injecting air into a tire in a straddle-type vehicle wheel.

  A straddle-type vehicle according to one aspect of the present invention includes a wheel including a rim portion to which a tire is attached, an air valve that is fixed to the rim portion and has an inlet for injecting air into the tire interior space, A wheel that is inclined to advance in one circumferential direction of the rim portion as the axis of the injection port moves away from the rim portion with respect to the axial direction of the rim portion, and the wheel, A wheel proximity component arranged at intervals in the axial direction of the rim portion.

  When the wheel proximity component is arranged with a space in the axle direction with respect to the wheel, the space between the air valve and the wheel proximity component may be small with respect to a plane perpendicular to the axle. According to the above-described configuration, the air valve is inclined so that the space between the wheel proximity component and the wheel is spaced in the axle direction, and the air valve and the wheel proximity component are related to the plane perpendicular to the axis of the inlet. The space between can be large. Therefore, in the present invention, when the nozzle of the air injection device is brought close to the axial direction of the injection port, it is possible to prevent the interference with the wheel proximity component and to easily connect the nozzle to the injection port, thereby improving the workability. it can.

  In the above aspect, the wheel further includes a hub portion attached to an axle, and a plurality of spoke portions that connect the rim portion and the hub portion, and the air valve has two parts in the circumferential direction of the rim portion. A position between the spoke portions in the circumferential direction, where a circumferential distance from the air valve to the one spoke portion in the circumferential direction is larger than a circumferential distance from the air valve to the other spoke portion in the circumferential direction. It may be arranged.

  According to the above configuration, when injecting air into the tire, a space for connecting the nozzle of the air injection device to the inlet of the air valve is secured, and the nozzle can be prevented from interfering with the spoke portion, thereby improving workability. Can be improved.

  In the above form, the vehicle is a straddle-type vehicle that is inclined in one axial direction of the rim portion in a self-standing parking state, and the axial line of the injection port protrudes from the rim portion to the other axial direction of the rim portion. Good.

  According to the above configuration, in the self-standing parking state, the nozzle can be easily brought close to the air valve from the side where the region surrounded by the vehicle body and the ground is wide, and the nozzle can be easily connected to the injection port.

  In the above aspect, the driving force may be transmitted from one axial direction of the rim portion to the wheel, and the axial line of the injection port may protrude from the rim portion to the other axial direction of the rim portion.

  According to the above configuration, the nozzle can be easily brought close to the air valve from the side opposite to the side where the driving force is transmitted, and the nozzle can be easily connected to the injection port.

  In the embodiment, the axis of the injection port may be inclined so as to advance in the direction opposite to the rotation direction of the rim portion as it moves away from the rim portion with respect to the axial direction of the rim portion.

  According to the above configuration, when the wheel is used as a front wheel, when the nozzle is connected to the injection port with the air valve disposed in front of the axle, the nozzle is brought closer to the injection port from above to below. As a result, the work can be facilitated.

  In the above aspect, the axis of the injection port may be inclined inward in the radial direction as the distance from the rim portion increases with respect to the axial direction of the rim portion.

  According to the above configuration, the nozzle can be more easily connected to the inlet of the air valve because the axis of the inlet is inclined inward in the radial direction.

  In the above aspect, the wheel includes a wheel including a rim portion to which a tire is attached, and an air valve fixed to the rim portion and formed with an inlet for injecting air into the internal space of the tire, and the axis of the inlet However, it may be arranged to be inclined so as to advance in one circumferential direction of the rim portion as it moves away from the rim portion with respect to the axial direction of the rim portion.

  According to the above configuration, it is possible to prevent the interference with the wheel proximity component in a state where the wheel is mounted on the vehicle body, and to easily connect the nozzle of the air injection device to the injection port, thereby improving workability.

  ADVANTAGE OF THE INVENTION According to this invention, the workability | operativity at the time of the air injection | pouring to a tire can be improved in the wheel of a saddle-ride type vehicle.

FIG. 1 is a right side view of a motorcycle that is an example of a saddle riding type vehicle according to an embodiment. FIG. 2 is a perspective view of the periphery of the front wheel of the motorcycle shown in FIG. 1 as viewed from the upper right side. FIG. 3 is a plan view of the periphery of the air valve with the tire removed from the front wheel of the motorcycle of FIG. FIG. 4 is a perspective view of the periphery of the air valve as viewed from the axial direction of the inlet (III direction shown in FIG. 2). FIG. 5 is a perspective view of the periphery of the rear wheel of the motorcycle shown in FIG. 1 as viewed from the upper right side.

  Hereinafter, embodiments will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or corresponding element through all the figures, and the overlapping detailed description is abbreviate | omitted. The concept of direction in the following description is based on the direction seen by a driver riding a motorcycle.

  FIG. 1 is a right side view of a motorcycle 1 according to this embodiment. As shown in FIG. 1, the motorcycle 1 includes a front wheel 2 and a rear wheel 3 as wheels, and a vehicle body frame 4 disposed between the front wheel 2 and the rear wheel 3. The front wheel 2 is rotatably connected to a lower end portion of a front fork 5 that extends substantially in the vertical direction. The front wheel 2 rotates clockwise around the axle 2a when the motorcycle 1 travels. A handle 6 extending in the left-right direction is rotatably attached to the upper end of the front fork 5 via a bracket and a steering shaft (not shown).

  A disc-shaped brake disc 6 is disposed on the side of the front wheel 2. The brake disc 6 is a wheel proximity component that is arranged with a space in the axle direction with respect to the front wheel 2. The brake disc 6 is made of a friction material housed in a brake caliper 8 facing the brake pads from the left and right. The brake caliper 8 is located rearward with respect to the axle 2a. When the driver grips the brake lever of the steering wheel, the hydraulic pressure generated from the master cylinder provided on the brake lever is transmitted to the piston inside the brake caliper 8 via the hydraulic hose 7. When the brake pad is pressed by the piston inside the brake caliper 8, the brake disc 6 is sandwiched from the left and right, and the braking force is applied to the front wheel 2, whereby the front wheel 2 is decelerated or stopped.

  The vehicle body frame 4 includes a head pipe 9, a front frame 10 that extends rearward from the head pipe 9, and a rear frame (not shown) that extends rearward from the rear end of the front frame 10. The rear wheel 3 is supported by the vehicle body frame 4 via the swing arm 11. The swing arm 11 is pivotally connected to the front frame 10 of the vehicle body frame 4 at the front end portion thereof, and supports the rear wheel 3 in a state in which the swing arm 11 can swing up and down with the connection point with the front frame 10 as a swing fulcrum. .

  In the motorcycle 1, an engine 12 is disposed between the front wheel 2 and the rear wheel 3 as an example of a power source that rotationally drives the rear wheel 3. The engine 12 is supported by the front frame 10 of the vehicle body frame 4. In the present embodiment, the turbocharger 30 that compresses the air supplied to the engine 12 is attached to the engine 12. Since the supercharger 30 is mounted on the motorcycle 1, the compressed air is supplied to the engine 12, so that the output of the engine 12 becomes larger. Thus, in the motorcycle 1 with a large output of the engine 12, it is required to improve the braking performance.

  When braking force is applied to the front wheel 2, a fulcrum is set at the axle center, a force point is set on the friction surface between the brake pad and the brake disk 6, and an action point is set on the outer periphery of the tire 20 of the front wheel 2. ing. Therefore, when the disc pad is pressed at a portion of the brake disc 6 that is radially outward from the axle center, the force for stopping the rotation of the front wheel 2 is increased. Therefore, in the high-power motorcycle 1, the brake disk 6 having a large outer diameter is attached to the front wheel 2 in order to improve the braking performance as compared with the low-power motorcycle.

  The driving force of the engine 12 passes through the clutch and transmission 13 and is then transmitted to the rear wheel 3 via a power transmission mechanism 14 disposed on the left side of the vehicle body. The power transmission mechanism 14 includes a drive sprocket (not shown) fixed to the output shaft of the transmission 13, a driven sprocket 14a (see FIG. 4) fixed to the axle 3a of the rear wheel 3, a drive sprocket and a driven sprocket. 14a, and a chain 14b wound around 14a. As with the power transmission mechanism 14, a side stand 15 is disposed on the left side of the vehicle body.

  Further, a muffler 18 that reduces exhaust noise of the engine 12 is supported on the motorcycle 1 via a muffler mounting bracket 17. As in the present embodiment, in the motorcycle 1 equipped with the supercharger 30 and the output of the engine 12 being large, it is also required to improve the silencing performance, and therefore the size of the muffler 18 needs to be increased. In the present embodiment, the muffler 18 extends in the front-rear direction so that the rear end thereof faces the rear wheel 3 in the vehicle width direction, and the vertical dimension of the muffler 18 changes so as to increase rearward. doing.

  FIG. 2 is a perspective view of the periphery of the front wheel 2 of the motorcycle 1 of FIG. 1 as viewed from the upper right side. As shown in FIG. 2, the front wheel 2 includes a tire 20, a wheel 21, and an air valve 22. The wheel 21 includes a rim portion 21a, a hub portion 21b, and a plurality of (in the present embodiment, five) spoke portions 21c. The rim portion 21a, the hub portion 21b, and the plurality of spoke portions 21c are integrally formed of a metal material. From this, the wheel 21 of the front wheel 2 of this embodiment is a solid spoke type.

  The rim portion 21a is formed in a cylindrical shape. A groove into which the tire 20 is fitted is formed in the rim portion 21a. Further, on the inner peripheral surface of the rim portion 21a, an air valve mounting seat surface 21aa protruding inward in the radial direction is formed at a location where the air valve 22 is fixed. The air valve mounting seat surface 21aa is formed with a through hole 21ab penetrating in the radial direction of the rim portion 21a, and the air valve 22 is fitted into the through hole 21ab. When air is injected through the air valve 22, the air is stored in a ring-shaped space defined by the tire 20 and the rim portion 21a. Air of appropriate pressure is stored in the space defined by the tire 20 and the rim portion 21a, and the impact transmitted from the axle 2a is appropriately absorbed by the deformation of the tire 20 that receives impact from the road surface during traveling. The

  The hub portion 21b is a portion supported by the wheel axle, and is formed in a cylindrical shape having a smaller diameter than the rim portion 21a. The axle 2a on the front wheel 2 side is fixed to the axle support portion of the hub portion 21b. Therefore, the hub portion 21b on the front wheel 2 side is rotatably supported on the axle 2a of the front wheel 2.

  The spoke portion 21c connects the rim portion 21a and the hub portion 21b. In the present embodiment, the spoke portion 21c extends from the rim portion 21a in the radial direction and is connected to the hub portion 21b. A plurality of spoke portions 21c are arranged at intervals in the circumferential direction of the rim portion 21a, and a space penetrating in the axial direction of the rim portion 21a is formed. The spoke part 21c has a dimension smaller than the dimension of the rim part 21a in the axle direction.

  A pair of brake disks 6a and 6b are fixed to the hub portion 21b via fastening members (for example, bolts and nuts). In other words, the brake disc 6 is disposed on the front wheel 2 on both sides in the axle direction. In FIG. 2, the brake disc 6a fixed to the right side of the hub portion 21b is indicated by a two-dot chain line for the sake of explanation. When the outer diameters of the brake disks 6a and 6b are increased, the brake caliper 8 in which the brake pads are accommodated is disposed so as to approach the edge of the inner peripheral surface of the rim portion 21a. For this reason, when the brake caliper 8 is removed from the front fork 5, the dimension in the axle direction between the brake discs 6a, 6b and the rim portion 21a is set large so that the brake caliper 8 does not interfere with the rim portion 21a of the wheel 21. Yes.

  An air valve 22 is fixed to the rim portion 21a. The air valve 22 is disposed on the inner side in the axle direction with respect to the brake disc 6a. The air valve 22 is exposed from between the brake disc 6 and the rim portion 21a in a side view (see FIG. 1). In the present embodiment, the air valve 22 is a bend type valve formed of a metal material (for example, an aluminum alloy).

  The bend type air valve 22 has a base portion 22a fitted into a through hole 21ab formed in the air valve mounting seat surface 21aa, and a protruding portion 22b protruding so as to be bent from the base portion 22a. Is formed. The base portion 22a of the air valve 22 extends in the radial direction of the rim portion 21a toward the axle center. A screw groove is provided on the outer periphery of the base portion 22a of the air valve 22, and when the air valve 22 is fixed to the air valve mounting seat surface 21aa of the rim portion 21a, the air valve 22 is engaged by screwing a nut into the screw groove of the base portion. It is fixed to the rim portion 21a. The nut that fixes the air valve 22 to the rim portion 21a is disposed in the internal space of the tire 20 (the outer peripheral surface of the rim portion 21a) and cannot be visually recognized from the outside. Further, when the air valve 22 is fixed to the rim portion 21a, a metal seal member is interposed between the air valve 22 and the air valve mounting seat surface 21aa of the rim portion 21a. The metal seal member is fixed by a fastening member (for example, a screw) so as to be in close contact with the air valve 22 and the air valve mounting seat surface 21aa.

  The protruding portion 22b extends while being inclined with respect to the radial direction of the rim portion 21a. An inlet 22c is formed at the tip of the protrusion 22b to inject air into the internal space of the tire 20. A gas other than air may be injected into the injection port 22c. For example, gas or nitrogen from which moisture has been removed may be injected.

  The axis P of the injection port 22c extends coaxially with the axis of the protrusion 22b. In the present embodiment, in the front wheel 2, when the air valve 22 is positioned forward with respect to the axle 2a, the inlet 22c is arranged to face upward. When injecting air into the tire 20, the operator brings the nozzle of the air injection device close along the axial direction of the injection port 22 c and inserts it into the injection port 22 c of the air valve 22. Here, the operator means a person who collectively refers to a maintenance person who maintains the motorcycle 1 in addition to the driver and passengers of the motorcycle 1. In general, when injecting air into a tire of a motorcycle, an air injecting device for an automobile is mainly used, and the tip of the hose of the air injecting device is often made of a metal rod-like nozzle.

  As the axis P of the inlet 22c of the air valve 22 moves away from the rim portion 21a to the right side (brake disk 6a side) with respect to the axial direction of the rim portion 21a, one side in the circumferential direction of the rim portion 21a (in this embodiment, during straight running) The rim portion 21a is inclined so as to proceed in the circumferential direction opposite to the rotation direction of the rim portion 21a. That is, the air valve 22 is inclined with respect to the circumferential direction of the rim portion 21a and the width direction orthogonal to the circumferential direction of the rim portion 21a. Here, the rotation direction of the rim portion 21a refers to a circumferential direction in which the rim portion 21a rotates during straight traveling. In the present embodiment, the axial direction of the rim portion 21a refers to a direction passing through the center of the rim portion 21a where the hub portion 21b is provided and extending in parallel with the axle direction. The width direction orthogonal to the circumferential direction of the rim portion 21a refers to the width direction of the inner peripheral surface of the rim portion 21a parallel to the axle direction.

  FIG. 3 is a plan view of the periphery of the air valve 22 with the tire 20 removed from the front wheel 2 of the motorcycle 1 of FIG. 1 as viewed from the inside in the radial direction of the rim portion 21a. As shown in FIG. 3, the angle θ at which the axis P of the injection port 22c is inclined to one side in the circumferential direction of the rim portion 21a is 45 degrees. In other words, in a plane perpendicular to the axis of the through hole 21ab formed in the air valve mounting seat surface 21aa, the axis P of the injection port 22c is inclined by an angle θ with respect to a virtual line L1 parallel to the axle 2a. The angle θ is 45 degrees. In the air valve 22, the angle θ at which the axis P of the inlet 22c is inclined can be arbitrarily adjusted when the air valve 22 is fixed to the rim portion 21a.

  As described above, in the present embodiment, the motorcycle 1 includes the side stand 15 on one side in the vehicle width direction of the vehicle body (the left side in the present embodiment). When the side stand 15 is used, the motorcycle 1 is tilted to one side in the vehicle width direction (left side in the present embodiment) in a self-standing parking state. Here, the axis P of the inlet 22c of the air valve 22 protrudes from the rim portion 21a to the side opposite to the side stand 15 (right side in the present embodiment) in a state where the axle 2a is perpendicular to the vehicle body longitudinal center line.

  In the motorcycle 1, the driving force from the engine 12 is transmitted to the rear wheel 3 via the power transmission mechanism 14 on one side in the vehicle width direction of the vehicle body (left side in the present embodiment). The axis P of 22c protrudes from the rim portion 21a to the side opposite to the power transmission mechanism 14 (right side in the present embodiment).

  Further, since the protruding portion 22b of the air valve 22 extends from the base portion in a state inclined inward in the radial direction with respect to the inner peripheral surface of the rim portion 21a, the axis P of the injection port 22c is in the axial direction of the rim portion 21a. As the distance from the rim portion 21a increases, the inclination is inward in the radial direction (see FIG. 2). Specifically, the angle α at which the injection port 22c is inclined radially inward with respect to a virtual plane including the air valve mounting seat surface 21aa of the rim portion 21a is 10 degrees.

  FIG. 4 is a perspective view of the periphery of the air valve 22 as viewed from the axial direction of the inlet 22c (the III direction shown in FIG. 2). As shown in FIG. 4, as described above, in this embodiment, the axis P of the injection port 22 c is inclined. Therefore, as compared with the configuration in which the inlet of the air valve is oriented in the width direction orthogonal to the circumferential direction of the rim portion, the axis P of the inlet 22c and the brake disc 6a are in a plane perpendicular to the axis P of the inlet 22c. The distance S connecting the periphery can be separated. Thereby, it is easy to secure a space for connecting the nozzle to the injection port from the outside when air is injected into the tire 20.

  FIG. 5 is a perspective view of the motorcycle 1 as viewed from the upper right side in the vicinity of the rear wheel 3 of the motorcycle 1 of FIG. As shown in FIG. 5, in the axle 3a of the rear wheel 3, a driven sprocket 14a is fixed to the left side of the vehicle body, and a brake disk 16 is fixed to the right side of the vehicle body. In addition, a hub portion is supported on the axle 3 a of the rear wheel 3 in the same manner as the front wheel 2. The axle 3a on the rear wheel 3 side is rotatably supported with respect to the axle support portion of the hub portion. Accordingly, the hub portion on the rear wheel 3 side is fixed to the axle 3 a of the rear wheel 3. In the rear wheel 3, the structure and arrangement of the wheel 21 and the air valve 22 are the same as those of the front wheel 2. In the motorcycle 1 of the present embodiment, the axis P of the inlet 22 c of the air valve 22 in both the front wheel 2 and the rear wheel 3. However, as it moves away from the rim portion 21a with respect to the axial direction of the rim portion 21a, the rim portion 21a is inclined so as to advance to one side in the circumferential direction.

  Further, the axle 3 a of the rear wheel 3 is supported by the rear end portion of the swing arm 11. In the present embodiment, the swing arm 11 has a pair of arm members 11a and 11b extending in the front-rear direction from the connection point with the front frame 10 toward both sides in the vehicle width direction of the axle 3a at the rear of the vehicle body. Thereby, the axle 3 a of the rear wheel 3 is supported at both ends by the swing arm 11. The outer diameter of the brake disc 16 attached to the axle 3a of the rear wheel 3 is smaller than the outer diameter of the brake disc 6 fixed to the axle 2a of the front wheel 2, but also when air is injected into the tire 20 of the rear wheel 3. From the viewpoint of improving workability, it is preferable that the space for connecting the nozzle of the air injection device to the injection port 22c is large. Further, as described above, in the present embodiment, the size of the muffler 18 is increased in order to improve the noise reduction performance of the motorcycle 1, and the rear end portion thereof faces the rear wheel 3 (see FIG. 1). . Accordingly, since the muffler 18 is disposed with a space in the axle direction with respect to the rear wheel 3, the muffler 18 corresponds to a wheel proximity component for the rear wheel 3.

  The motorcycle 1 as an example of the saddle riding type vehicle configured as described above has the following effects.

  In order to improve the braking performance of the motorcycle 1, when the outer diameter of the brake disc (wheel proximity component) 6 arranged with a space in the axial direction with respect to the front wheel 2 is increased, the air valve is related to the plane perpendicular to the axle 2a. The space between 22 and the brake disc 6 is reduced. In the present embodiment, in the front wheel 2, the axis P of the inlet 22 c of the air valve 22 is inclined to one side in the circumferential direction of the rim portion 21 a as it moves away from the rim portion 21 a with respect to the axial direction of the rim portion 21 a of the wheel 21. Thus, the space between the air valve 22 and the brake disk 6 is increased with respect to the plane perpendicular to the axis P of the inlet 22c by the distance between the brake disk 6 and the front wheel 2 being increased in the axle direction. Therefore, when bringing the nozzle of the air injection device closer to the axial direction of the injection port 22c, it is possible to prevent the interference with the brake disk 6 and to easily connect the nozzle to the injection port 22c. It becomes easy to do.

  Further, when the motorcycle 1 is parked, when the work of injecting air into the tire 20 is performed, it is difficult to adjust the posture with respect to the injection port 22c by preventing interference between the nozzle of the air injection device and the brake disk 6. Even if a rod-shaped nozzle is used, it is easy to insert it into the injection port 22c. Further, when the size of the muffler 18 disposed with a space in the axle direction with respect to the rear wheel 3 is increased, the muffler 18 is disposed in the vicinity of the air valve 22 in the rear wheel 3 depending on the position of the air valve 22 with respect to the axle 3a. May be. In the present embodiment, since the air valve 22 has the same structure and arrangement as that of the front wheel 2 in the rear wheel 3, the distance between the muffler 18 and the rear wheel 3 increases in the axle direction. The space between the air valve 22 and the muffler 18 is increased with respect to a plane perpendicular to the axis P. Thereby, in the rear wheel 3, interference with the muffler 18 can be prevented when the nozzle is brought closer to the axial direction of the injection port 22c. Thereby, in both the front wheel 2 and the rear wheel 3, the nozzle can be easily connected to the injection port 22c, and the operation of injecting air into the tire 20 is facilitated.

  Further, in the front wheel 2 and the rear wheel 3 that are wheels, the configuration in which the axis P of the inlet 22c of the air valve 22 is inclined and the inlet of the air valve is oriented parallel to the circumferential direction of the rim and the rim Compared with the configuration oriented in the width direction orthogonal to the circumferential direction of the wheel, the inlet 22c is easily visible from the outside because the distance between the wheels 2 and 3 and the wheel proximity components 6 and 18 increases in the axle direction. .

  In addition, the air valve 22 is disposed at a position where the circumferential distance from the air valve 22 to the one spoke portion 21ca in the circumferential direction is larger than the circumferential distance from the air valve 22 to the other spoke portion 21cb in the circumferential direction. A space for connecting the nozzle of the air injection device to the injection port 22c of the air valve 22 is secured at the time of injecting air into the air valve 20, and the nozzle can be prevented from interfering with the spoke portion 21c, thereby improving workability. Can do.

  In addition, with the axle 2a perpendicular to the vehicle front-rear center line, the axis P of the inlet 22c of the air valve 22 protrudes from the rim portion 21a to the side opposite to the side stand 15 (right side in the present embodiment) The nozzle of the air injection device can be easily brought close to the air valve 22 from the side where the region surrounded by the vehicle body and the ground is wide, and the nozzle can be easily connected to the injection port 22c.

  Further, the axis P of the inlet 22c of the air valve 22 protrudes from the rim portion 21a to the side opposite to the power transmission mechanism 14 (right side in the present embodiment). Thereby, the nozzle of the air injection device can be easily brought close to the air valve 22 from the side opposite to the power transmission mechanism 14, and the nozzle can be easily connected to the injection port 22c.

  In addition, since the axis P of the inlet 22c of the air valve 22 is disposed so as to advance in the direction opposite to the rotation direction of the rim portion 21a during traveling, a wheel including the air valve 22 is used as the front wheel 2. In this case, when the nozzle of the air injection device is connected to the injection port 22c with the air valve 22 positioned in front of the axle 2a, the nozzle is brought closer to the injection port 22c from above to below. Workability can be improved.

  The axis P of the inlet 22c of the air valve 22 is inclined inward in the radial direction with increasing distance from the rim 21a with respect to the axial direction of the rim 21a, thereby further preventing interference between the air valve 22 and other components.

  In addition, in the plane perpendicular to the axis of the through hole 21ab formed in the air valve mounting seat surface 21aa of the rim portion 21a, the axis P of the inlet 22c of the air valve 22 is 45 degrees with respect to the virtual line L1 parallel to the axle 2a. Inclined. Here, the angle at which the axis P of the injection port 22c is inclined with respect to the virtual line L1 exceeds 0 degree and is less than 90 degrees, preferably 30 degrees or more and 60 degrees or less, and more preferably 45 degrees. If the inclination angle of the axis P of the injection port 22c of the air valve 22 becomes too large, the nozzle and the rim portion 21a interfere when air is injected into the tire 20, and if the inclination angle is too small, the nozzle and the brake disc 6 have a finger in the pie. As described above, by setting the inclination angle of the axis P of the injection port 22c, it is possible to prevent the nozzle from interfering with the rim portion 21a or the brake disk 6 when air is injected into the tire 20.

  In the front wheel 2, the air valve 22 is inclined in a direction in which the distance connecting the axis P of the injection port 22c and the periphery of the brake disk 6a is separated, so that a space for connecting the nozzle of the air injection device to the air valve 22 is provided. Since it becomes large, the said nozzle can be easily connected to the injection port 22c, and workability | operativity can be improved.

  The air valve 22 is fixed to the rim portion 21a via a metal seal member, and the seal member is fixed so as to be in close contact with the air valve 22 and the rim portion 21a via a fastening member. Thus, even when centrifugal force acts on the air valve 22 in a direction away from the rim portion 21a during the high-speed rotation of the wheels 2 and 3, the fastening member keeps the seal member closely attached to the air valve 22 and the rim portion 21a. Air can be prevented from leaking between 22 and the rim portion 21a.

  In addition, this invention is not limited to embodiment mentioned above, The structure can be changed, added or deleted in the range which does not deviate from the meaning of this invention. In the above-described embodiment, the air valve 22 is disposed in an inclined manner in both the front wheel 2 and the rear wheel 3, but the air valve 22 of any one of the wheels may be disposed in an inclined manner. That is, one of the air valves of the driving wheel and the driven wheel may be inclined. In the above-described embodiment, the wheels 21 of the wheels 2 and 3 are each a solid-spoke type, but may be a wire-spoke type connected by a wire, and the wheels 2 and 3 may be spoke portions of the wheel 21. The structure is not limited.

  In the above-described embodiment, the example in which the axle 3 a of the rear wheel 3 is supported at both ends by the pair of swing arms 11 is disclosed, but may be supported at one swing arm 11. In the case where the rear wheel axle is cantilevered by the swing arm, the axis of the air valve inlet is preferably inclined to the side opposite to the swing arm side. The hub portion 21b on the rear wheel 3 side may be supported so as to be rotatable with respect to the axle 3a of the rear wheel 3 in the same manner as the hub portion 21b on the front wheel 2 side.

  In the above-described embodiment, the rear wheel 3 is positioned so that the inlet 22c faces upward when the air valve 22 is positioned forward with respect to the axle 3a as in the front wheel 2. 3, the inlet 22c may face upward when the air valve 22 is positioned rearward with respect to the axle 3a. Further, the air valve 22 of the front wheel 2 may be disposed in an inclined manner on the side opposite to the rotational direction of the rim portion 21a, and the air valve 22 of the rear wheel 3 may be disposed in an inclined manner in the rotational direction of the rim portion 21a. By arranging the air valve 22 of the rear wheel 3 so as to be inclined in the rotation direction, the nozzle of the rear wheel 3 can be moved closer to the injection port 22c from the upper side to the lower side, and workability can be improved. In the above-described embodiment, as the axis P of the injection port 22c moves away from the rim portion 21a in the axial direction of the rim portion 21a, it proceeds in the circumferential direction opposite to the rotation direction of the rim portion 21a. Not limited. That is, the structure may be such that as the axis P of the injection port 22c moves away from the rim portion 21a in the axial direction of the rim portion 21a, the injection port 22c advances in the circumferential direction that is the rotational direction of the rim portion 21a.

  In the above-described embodiment, the supercharger 30 is mounted and the motorcycle 1 having a large engine output that requires braking performance has been described as an example. However, the supercharger may not be mounted. A motorcycle with a small engine output may also be used. By applying the present invention to the motorcycle 1 having a small engine output, an effect that the maintainability can be improved can be achieved. The motorcycle 1 may be an electric vehicle equipped with an electric motor as a prime mover. Furthermore, the motorcycle 1 may be in any category such as a road sports type, an American type, or a scooter type. The straddle-type vehicle is not limited to the motorcycle 1 and may be, for example, an ATV (All Terrain Vehicle) or a small transport vehicle. Preferably, a vehicle including a brake disc that easily becomes an obstacle when the nozzle of the air injection device is inserted into the injection port of the air valve is preferable. Moreover, the tire 20 of the wheels 2 and 3 may be either a tube-containing tire or a tubeless tire.

1 Motorcycle (saddle-ride type vehicle)
2 Front wheels
3 Rear wheels
6 Brake disc (wheel proximity component)
18 Muffler (wheel proximity parts)
20 Tire 21 Wheel 21a Rim part 21b Hub part 21c Spoke part 22 Air valve 22c Inlet

Claims (5)

A wheel including a rim portion to which a tire is attached, and an air valve that is fixed to the rim portion and in which an inlet is formed to inject air into the inner space of the tire. A wheel that is inclined and arranged to advance in one circumferential direction of the rim portion as it moves away from the rim portion with respect to the axial direction of the rim portion;
A wheel proximity component arranged with a space in the axial direction of the rim portion with respect to the wheel, and
In a self-standing parking state, a straddle-type vehicle that inclines in one axial direction of the rim portion,
A straddle -type vehicle in which an axis of the injection port protrudes from the rim portion to the other axial direction of the rim portion. A wheel including a rim portion to which a tire is attached, and an air valve that is fixed to the rim portion and in which an inlet is formed to inject air into the inner space of the tire. A wheel that is inclined and arranged to advance in one circumferential direction of the rim portion as it moves away from the rim portion with respect to the axial direction of the rim portion;
A wheel proximity component arranged with a space in the axial direction of the rim portion with respect to the wheel, and
Driving force is transmitted from one axial direction of the rim to the wheel,
A straddle -type vehicle in which an axis of the injection port protrudes from the rim portion to the other axial direction of the rim portion. A wheel including a rim portion to which a tire is attached, and an air valve that is fixed to the rim portion and in which an inlet is formed to inject air into the inner space of the tire. A wheel that is inclined and arranged to advance in one circumferential direction of the rim portion as it moves away from the rim portion with respect to the axial direction of the rim portion;
A wheel proximity component arranged with a space in the axial direction of the rim portion with respect to the wheel, and
A straddle -type vehicle in which the axis of the injection port is inclined so as to advance in a direction opposite to the rotation direction of the rim portion as it moves away from the rim portion with respect to the axial direction of the rim portion. The wheel further includes a hub portion attached to an axle, and a plurality of spoke portions connecting the rim portion and the hub portion,
The air valve is a position between two spoke portions in the circumferential direction of the rim portion, and a circumferential distance from the air valve to the one spoke portion in the circumferential direction is from the air valve to the circumferential direction. The straddle-type vehicle according to any one of claims 1 to 3, wherein the straddle-type vehicle is disposed at a position larger than a circumferential distance to the other spoke portion . The straddle-type vehicle according to any one of claims 1 to 3 , wherein an axis of the injection port is inclined radially inward as the distance from the rim portion increases with respect to an axial direction of the rim portion.

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