JP6352590B2 - Wheels of saddle riding type vehicles and surrounding structures - Google Patents

Description

  The present invention relates to a wheel of a saddle-ride type vehicle such as a motorcycle and a peripheral structure thereof.

  Conventionally, in a wheel composed of wire spokes in a saddle-ride type vehicle such as a motorcycle, in order to increase the lateral rigidity of the wheel, the wire spoke is crossed at a substantial center between the wheel hub and the rim, The thing attached to the hub and the rim | limb is well-known (refer the following patent document 1).

JP 2005-349857 A

  On the other hand, a die-cast (die casting) wheel is used in a model of a supersport system that requires rigidity of the wheel. This is because the die cast wheel has higher longitudinal rigidity than the wheel made of wire spokes. In recent years, there has been a demand for a wheel that can increase the lateral rigidity while maintaining the longitudinal rigidity in order to further increase the rigidity of the wheel with the evolution of vehicle performance.

  An object of the present invention is to provide a wheel capable of enhancing lateral rigidity while maintaining longitudinal rigidity in a wheel of a saddle-ride type vehicle such as a motorcycle, and a peripheral structure thereof.

  According to a first aspect of the present invention, there is provided a hub supported by an axle, an outer peripheral portion, a rim capable of mounting a tire on the outer peripheral portion, and the hub and the rim extending in a radial direction of the rim. A plurality of spokes connected to each other, wherein the hub, the rim, and the spoke are integrally cast, and the spoke has an outer surface facing outward in the vehicle width direction on the hub side. Each of the two spaces defined by a rim center plane that is perpendicular to the rotation center line of the rim and bisects the rim in the vehicle width direction. The space and the second space are characterized in that the inner surface is connected to the hub in the first space and to the rim in the second space.

  The invention according to claim 2 is characterized in that the outer surface is connected to the hub in the first space and to the rim in the second space.

  According to a third aspect of the present invention, the inner surface and the outer surface are provided substantially in parallel.

  According to a fourth aspect of the present invention, the rim includes an inclined portion that inclines toward the axle as it approaches the rim center plane, and the spokes are connected at the inclined portion.

  In the fifth aspect of the invention, the spoke straddles the rim center plane at the approximate center between the hub and the rim, so that the inner space of the wheel is rotated from the outside in the vehicle width direction when the wheel rotates. It is characterized in that a recessed space that is recessed inward in the vehicle width direction is formed.

  The invention described in claim 6 is characterized in that the spokes are alternately arranged with a spoke extending from the left side toward the right side and a spoke extending from the right side toward the left side.

  A seventh aspect of the invention includes the wheel according to the fifth aspect of the invention and a brake caliper, and at least a part of the brake caliper is located in the recessed space.

  According to the first aspect of the present invention, since the hub, the rim, and the spoke are integrally formed by casting, the wheel can maintain high longitudinal rigidity. The inner surface of the spoke is connected to the hub in the first space and to the rim in the second space. That is, since the inner surface of the spoke straddles the rim center surface, the lateral rigidity of the wheel can be improved.

  According to the invention described in claim 2, the outer surface of the spoke is also connected to the hub in the first space and to the rim in the second space. That is, since the outer surface of the spoke also straddles the rim center surface, the appearance of the wheel can be improved while improving the lateral rigidity of the wheel.

  According to invention of Claim 3, since the inner surface and outer surface of a spoke are provided substantially in parallel, the external appearance property of a wheel is securable.

  According to invention of Claim 4, since a spoke connects in an inclined part, the area of the connection part with a spoke can be ensured in a rim. Furthermore, the rigidity of the wheel can be improved.

  According to the fifth aspect of the present invention, the spoke straddles the rim center plane at the approximate center between the hub and the rim. Therefore, even when the wheel is rotating, a recessed space can be formed in the approximate center between the hub and the rim.

  According to the invention described in claim 6, the rigidity of the wheel can be improved.

  According to invention of Claim 7, it can suppress that a brake caliper is located in the outward of a vehicle width direction, and can make a brake function and design nature compatible.

1 is a left side view showing a motorcycle 1 as a saddle-ride type vehicle according to an embodiment of the present invention. 1 is a front view showing a motorcycle 1 as a saddle-ride type vehicle according to an embodiment of the present invention. It is the figure which looked at the longitudinal section of front wheel WF from the front. It is an enlarged view of Drawing 3, and is a figure in which the rotation position of front wheel WF differs. It is a longitudinal cross-sectional view which shows the arrangement | positioning relationship between the brake caliper 13 and recessed space S3.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, an overall configuration of a motorcycle 1 as a saddle-ride type vehicle according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a left side view showing a motorcycle 1 as a saddle-ride type vehicle according to an embodiment of the present invention. FIG. 2 is a front view showing the motorcycle 1 as a saddle-ride type vehicle according to an embodiment of the present invention.

  In the following description, the front / rear, left / right, and upper / lower directions follow the directions seen from the occupant (driver) who rides the motorcycle 1 unless otherwise specified. In the figure, the arrow FR indicates the front of the vehicle, the arrow LH indicates the left side of the vehicle, and the arrow UP indicates the upper side of the vehicle. DF indicates the front-rear direction, DW indicates the vehicle width direction, and DV indicates the vertical direction.

  As shown in FIG. 1, the motorcycle 1 of the present embodiment mainly includes a vehicle body 2 such as a vehicle body frame 3, a front wheel WF, a rear wheel WR, an engine 29, a fuel tank 37, and a center stand 31. Configured as

  The vehicle body frame 3 includes a head pipe 5, a main tube 7, a center tube 9, and a seat rail 11. The main tube 7 extends obliquely rearward from the head pipe 5. The center tube 9 extends downward from the rear end of the main tube 7. The seat rail 11 extends rearward from the main tube 7.

  The center stand 31 is attached to the lower end portion of the center tube 9 so as to be retractable so that it can be stored in the lower part of the vehicle body 2 or standing on the ground. The center stand 31 can support the vehicle body frame 3 by being erected.

  The front wheel WF is pivotally supported on the axle 91 by left and right front forks 19 and 19 including an outer tube 15 and an inner tube 17. The upper part of each inner tube 17 is supported by a top bridge 21 and a bottom bridge 23. A steering stem 25 is inserted into the head pipe 5 at the top of each inner tube 17. The steering stem 25 is connected to the top bridge 21 and the bottom bridge 23. Brake calipers 13 and 13 are provided on the left and right front forks 19 and 19, respectively. A handle 27 provided on the top bridge 21 can steer the front wheel WF.

  The engine 29 is a water-cooled engine (internal combustion engine), and is supported by the main tube 7 and the center tube 9. A radiator 41 is provided behind the front wheel WF and in front of the engine 29. The radiator 41 cools the engine coolant circulating inside the engine 29 by air cooling. The rear wheel WR is rotatably supported by a swing arm 33 connected to the center tube 9. The rear wheel WR is driven via the drive shaft 35 by the power of the engine 29.

  A fuel tank 37 is fixed on the main tube 7. An oil tank (not shown) is provided inside the fuel tank 37. A seat 39 is fixed on the seat rail 11.

  The motorcycle 1 includes a front cowl 43, a headlight 65, a wind screen 45, a side cowl 47, a seat cowl 49, a front fender 51, and a rear fender 53. The front cowl 43 is disposed at the front portion of the motorcycle 1 and covers the front portion of the body frame 3 and the like. The headlight 65 irradiates a headlamp through the front cowl 43. An air guide path 75 is opened below the headlight 65. The traveling wind is introduced to the head pipe 5 side through the air guide path 75. Rear mirrors 55 are provided on the left and right sides of the front cowl 43, respectively. The wind screen 45 is attached to the upper part of the front cowl 43. The side cowl 47 is disposed on the side of the motorcycle 1 and covers the engine 29 and the like. The seat cowl 49 covers a lower portion of the seat 39 in the motorcycle 1. The front fender 51 covers the upper part of the front wheel WF. The rear fender 53 covers the upper part of the rear wheel WR. The motorcycle 1 is a full cowling type motorcycle.

Next, the details of the wheel 90 and its peripheral structure 90A of the motorcycle 1 of the present embodiment will be described with reference to FIGS. FIG. 3 is a front view of a longitudinal section of the front wheel WF. FIG. 4 is an enlarged view of FIG. 3, in which the rotational position of the front wheel WF is different. FIG. 5 is a longitudinal sectional view showing the positional relationship between the brake caliper 13 and the recessed space S3. The characteristic configuration of the wheel 90 of this embodiment is applied to both the front wheel WF and the rear wheel WR. Hereinafter, the front wheel WF will be described as a representative. The description of the front wheel WF is also applied to the rear wheel WR.

As shown in FIGS. 3 to 5, the front wheel WF includes a wheel 90 and a tire 99. The wheel 90 includes a hub 93 supported by the axle 91, a rim 95, and a plurality of spokes 97. The rim 95 has an outer peripheral portion, and a tire 99 can be attached to the outer peripheral portion. The spoke 97 extends in the radial direction DR of the rim 95 (front wheel WF, tire 99), and connects the hub 93 and the rim 95 together. The plurality of spokes 97 are arranged at predetermined intervals in the circumferential direction of the rim 95 (front wheel WF, tire 99). Specifically, the spokes 97A extending from the left side to the right side and the spokes 97B extending from the right side to the left side are alternately arranged.
The hub 93, the rim 95, and the spoke 97 are integrally cast. That is, the wheel 90 is formed by die casting.

  The cross section of the spoke 97 is substantially rectangular. The spoke 97 has, on the hub 93 side, an outer surface 971 that faces the outer side in the vehicle width direction DW and an inner surface 973 that faces the inner side in the vehicle width direction DW. The inner surface 973 and the outer surface 971 are provided substantially in parallel. “Substantially parallel” refers to a relationship that can be regarded as parallel when viewed macroscopically.

  As shown in FIG. 4, a surface that is orthogonal to the rotation center line 95L of the rim 95 and bisects the rim 95 in the vehicle width direction DW is defined as a “rim center surface 95P”. The rotation center line 95L of the rim 95 coincides with the rotation center line 91L of the axle 91. The two spaces defined by the rim center plane 95P are defined as “first space S1” and “second space S2”, respectively. In the present embodiment, the first space S1 is a right space, and the second space S2 is a left space.

  The inner surface 973 is connected to the hub 93 in the first space S1 and to the rim 95 in the second space S2. The outer surface 971 is also connected to the hub 93 in the first space S1 and to the rim 95 in the second space S2.

  The spoke 97 straddles the rim center plane 95P at a substantially center (in the radial direction DR) between the hub 93 and the rim 95. Thereby, as shown in FIG. 5, a locus 975 of the spoke 97 is formed when the front wheel WF is rotated. A recessed space S3 that is recessed from the outside in the vehicle width direction DW to the inside in the vehicle width direction DW is formed in the space inside the front wheel WF and outside the locus 975 of the spoke 97.

  The rim 95 includes an inclined portion 953 that is inclined toward the axle 91 as it approaches the rim center plane 95P. The spoke 97 is connected to the rim 95 at the inclined portion 953. In the present embodiment, the inclined portion 953 is substantially hemispherical.

  The peripheral structure 90 </ b> A of the wheel 90 of this embodiment includes the wheel 90 and the brake caliper 13. At least a part of the brake caliper 13 is located in the recessed space S3. It is preferable that 50% or more of the width of the brake caliper 13 along the vehicle width direction DW is located in the recessed space S3, and it is more preferable that the entire brake caliper 13 is located.

According to the embodiment of the present invention, the following effects are exhibited.
According to this embodiment, since the hub 93, the rim 95, and the spoke 97 are integrally molded, the wheel 90 can maintain high longitudinal rigidity. Further, the inner surface 973 of the spoke 97 is connected to the hub 93 in the first space S1 and to the rim 95 in the second space S2. That is, since the inner surface 973 of the spoke 97 straddles the rim center surface 95P, the lateral rigidity of the wheel 90 can be improved.

  According to the present embodiment, the outer surface 971 of the spoke 97 is also connected to the hub 93 in the first space S1 and to the rim 95 in the second space S2. That is, since the outer surface 971 of the spoke 97 also straddles the rim center surface 95P, the appearance of the wheel 90 can be improved while improving the lateral rigidity of the wheel 90.

  According to this embodiment, since the inner surface 973 and the outer surface 971 of the spoke 97 are provided substantially in parallel, the appearance of the wheel 90 can be ensured.

  According to this embodiment, since the spoke 97 is connected at the inclined portion 953, the area of the connection portion with the spoke 97 can be secured in the rim 95. Furthermore, the rigidity of the wheel 90 can be improved.

  According to the present embodiment, the spoke 97 straddles the rim center plane 95P at the approximate center between the hub 93 and the rim 95. Therefore, even when the wheels WF and WR are rotating, the recessed space S3 can be formed in the approximate center between the hub 93 and the rim 95.

  According to this embodiment, it can suppress that the brake caliper 13 is located in the vehicle width direction DW outward, and can make a brake function and design nature compatible.

The present invention is not limited to the embodiment. In the above embodiment, the present invention is applied to a motorcycle. However, the present invention is not limited to a motorcycle, and may be applied to a tricycle or other saddle-type vehicles. Is possible.
In addition, the inner surface 973 is connected to the hub 93 in the first space S1 and is connected to the rim 95 in the second space S2. The outer surface 971 is connected to the hub 93 and the rim 95 in the first space S1. May be. The first space S1 may be a left space, and the second space S2 may be a right space.

  The cross section of the spoke 97 is not limited to a substantially rectangular shape, and may be a substantially circular shape, for example. In the spoke 97 having a substantially circular cross section, a substantially arc-shaped surface facing the outside in the vehicle width direction DW is defined as an “outer surface” on the hub 93 side, and a substantially arc-shaped surface facing the inside in the vehicle width direction DW. The face is defined as “inner face”.

1 Motorcycle (saddle-ride type vehicle)
2 Body 90 Wheel 90A Peripheral structure 91 Axle 93 Hub 95 Rim 95L Rotation center line 95P Rim center surface 953 Inclined portion 97, 97A, 97B Spoke 971 Outer surface 973 Inner surface 99 Tire DR Radial direction DV Vertical direction DW Vehicle width direction S1 First space S2 Second space S3 Recessed space WF Front wheel (wheel)
WR Rear wheel (wheel)

Claims (1)

A peripheral structure (90A) of the wheel (90) of the saddle-ride type vehicle (1),
The wheel (90)
A hub (93) supported on an axle (91);
A rim (95) having an outer periphery, and capable of mounting a tire (99) on the outer periphery;
A wheel (90) comprising a plurality of spokes (97) extending in a radial direction (DR) of the rim (95) and connecting the hub (93) and the rim (95);
The hub (93), the rim (95), and the spoke (97) are integrally cast,
The spoke (97) has, on the hub (93) side, an outer surface (971) facing outward in the vehicle width direction (DW) and an inner surface (973) facing inward in the vehicle width direction (DW). And
The spokes (97) are alternately arranged with first spokes (97A) extending from the left side toward the right side as viewed from the occupant and second spokes (97B) extending from the right side toward the left side,
Two spaces defined by a rim center plane (95P) that is orthogonal to the rotation center line (95L) of the rim (95) and bisects the rim (95) in the vehicle width direction (DW) are respectively first. When referring to the space (S1) and the second space (S2), the inner surface (973) of the first spoke (97A) is connected to the hub (93) in the second space (S2), and The inner surface (973) of the second spoke (97B) is connected to the hub (93) in the first space (S1), and is connected to the rim (95) in one space (S1). Connected to the rim (95) in the second space (S2),
The outer surface (971) of the second spoke (97B) is connected to the hub (93) in the first space (S1) and to the rim (95) in the second space (S2). ,
Cross sections of the first spoke (97A) and the second spoke (97B) are both substantially rectangular, and the inner surface (973) and the outer surface (971) are provided substantially in parallel,
Both the first spoke (97A) and the second spoke (97B) straddle the rim center plane (95P) at the approximate center between the hub (93) and the rim (95), that is, Each of the first spoke (97A) and the second spoke (97B) is substantially the same as the first space (S1) and the second spoke (97) in substantially half the total length of the first and second spokes (97A, 97B). It straddles the boundary with the second space (S2), so that when the wheels (WF, WR) rotate, the space inside the wheels (WF, WR) enters the vehicle width direction (DW) from the outside in the vehicle width direction (DW). A recessed space (S3) recessed inside is formed,
Each of the first spoke (97A) and the second spoke (97B) has a rim center compared to the width dimension when viewed from the direction of the rotation center line (95L) of the rim (95). The width dimension when viewed from the direction of the surface 95P is configured to be larger,
The rim (95) includes an inclined portion (953) that inclines toward the axle (91) as it approaches the rim center plane (95P),
The spoke (97) is a wheel (90) that connects to the rim (95) at the ramp (953);
The peripheral structure (90A)
The wheel (90);
A brake caliper (13),
At least a part of the brake caliper (13) is located in the recessed space (S3) of the wheel (90),
The peripheral structure (90A) of the wheel (90) of the saddle-ride type vehicle (1).

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