WO2021020053A1 - Vehicular wheel - Google Patents

Vehicular wheel Download PDF

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Publication number
WO2021020053A1
WO2021020053A1 PCT/JP2020/026640 JP2020026640W WO2021020053A1 WO 2021020053 A1 WO2021020053 A1 WO 2021020053A1 JP 2020026640 W JP2020026640 W JP 2020026640W WO 2021020053 A1 WO2021020053 A1 WO 2021020053A1
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WO
WIPO (PCT)
Prior art keywords
wheel
hub
bolt hole
side member
bush
Prior art date
Application number
PCT/JP2020/026640
Other languages
French (fr)
Japanese (ja)
Inventor
深谷　典之
Original Assignee
中央精機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中央精機株式会社 filed Critical 中央精機株式会社
Publication of WO2021020053A1 publication Critical patent/WO2021020053A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/06—Wheels with compression spokes
    • B60B1/14—Attaching spokes to rim or hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/14—Attaching disc body to hub ; Wheel adapters
    • B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B5/00—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
    • B60B5/02—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material

Definitions

  • the technology disclosed in this specification relates to a vehicle wheel.
  • a wheel for a vehicle having a wheel body formed of a resin such as a fiber reinforced resin material is known. Since such a resin wheel body is lighter than a conventional wheel body formed of a light alloy such as an aluminum alloy or a magnesium alloy, it is expected to contribute to weight reduction of the vehicle.
  • the conventional configuration for connecting the resin wheel body to the hub of the vehicle is as follows. That is, a tubular fixed washer is attached to each bolt hole formed in the hub mounting portion of the wheel body from the wheel surface side.
  • the fixed washer has a flange. This flange is located on the wheel surface side with respect to the bolt hole, and the outer diameter of the flange is larger than the diameter of the bolt hole.
  • a fixing nut is arranged on the wheel surface side with respect to the fixed washer.
  • the fixing nut is a wheel stud provided on the hub and is screwed to the tip of the wheel stud that penetrates the through hole of the fixing washer.
  • This specification discloses a technique capable of solving at least a part of the above-mentioned problems.
  • the vehicle wheel disclosed in the present specification is a vehicle wheel that is connected to a hub of a vehicle body by fastening with a fastening member, and the fastening member is inserted into the vehicle wheel.
  • a hub mounting portion formed through the bolt holes and made of a resin material, and a front side member arranged on the wheel surface side of the bolt holes and formed with a first insertion hole into which the fastening member is inserted.
  • the front side member includes a back side member which is arranged on the wheel back surface side of the bolt hole and has a second insertion hole into which the fastening member is inserted, and the outer diameter of the front side member is larger than the diameter of the bolt hole.
  • a first flange and a first facing portion that faces a part of the fastening member in the wheel axial direction and receives a pressing force from the fastening member toward the back surface side of the wheel when the fastening member is fastened.
  • the back side member faces a second flange having an outer diameter larger than the diameter of the bolt hole and a part of the hub in the wheel axial direction, and when fastened with the fastening member, the hub is used. It has a second facing portion that receives a pressing force toward the wheel surface side, and when the front side member and the back side member are fastened with the fastening member, a part of the front side member and the back side member are used. Is configured to abut against each other in the wheel axial direction.
  • the first facing portion of the front side member receives a pressing force from the fastening member toward the back surface side of the wheel.
  • the second facing portion of the back side member receives a pressing force from the fastening member toward the wheel surface side. Then, due to the pressing force, the peripheral portion of the bolt hole in the hub mounting portion of the vehicle wheel is sandwiched between the first flange of the front side member and the hub, so that the vehicle wheel can be mounted on the hub. ..
  • the front side member and the back side member may be configured to hold each other in the bolt holes. According to the wheel for this vehicle, it is possible to prevent the front side member and the back side member from falling out from the bolt holes.
  • the vehicle wheel further includes a hub plate arranged on the back surface side of the wheel of the hub mounting portion, and the hub plate is a fastening member.
  • the hub mounting portion and the hub are in contact with each other in the wheel axial direction, and are sandwiched between the second flange of the back member and the hub mounting portion in the wheel axial direction.
  • the hub plate comes into contact with the hub mounting portion and the hub in the wheel axial direction, so that the stress caused by fastening the fastening member is distributed not only to the back side member but also to the hub plate. Will be done.
  • the wheel for this vehicle it is possible to prevent the stress due to the fastening of the fastening member from being concentrated on the back side member as compared with the configuration without the hub plate. Further, according to the wheel for this vehicle, since the hub plate is sandwiched between the second flange of the back side member and the hub mounting portion in the wheel axial direction, for example, the hub plate may fall off before fastening with the fastening member. Can be suppressed.
  • the technology disclosed in the present specification can be realized in various forms, for example, a vehicle wheel, a manufacturing method thereof, and the like.
  • FIG. 5 is an XZ plan view schematically showing an external configuration of a wheel body 101 of a vehicle wheel 100 according to the present embodiment. It is explanatory drawing which shows schematic the YZ cross-sectional structure of the hub mounting part 220 of a wheel body 101. It is explanatory drawing which enlarges and shows the YZ cross-sectional structure of the X1 part in FIG. 2 (state before fastening). It is explanatory drawing which enlarges and shows the YZ cross-sectional structure of the X1 part in FIG. 2 (state after fastening).
  • FIG. 1 is an XZ plan view schematically showing an external configuration of a wheel body 101 of a vehicle wheel 100 according to the present embodiment
  • FIG. 2 is a schematic view of a YZ cross-sectional configuration of a hub mounting portion 220 of the wheel body 101. It is explanatory drawing which shows.
  • FIG. 2 shows the YZ cross-sectional configuration at the position II-II in FIG.
  • Each figure shows XYZ axes that are orthogonal to each other to identify the direction.
  • the Y-axis direction is assumed to be a direction parallel to the rotation axis of the vehicle wheel 100 (wheel body 101), and is hereinafter referred to as "wheel axial direction".
  • the 100 may actually be arranged in a different orientation than that. The same applies to FIGS. 3 and later.
  • the wheel body 101 is formed of, for example, a resin such as a thermoplastic carbon resin or a thermosetting carbon resin.
  • the wheel body 101 includes a substantially cylindrical wheel rim 10 and a wheel disc 20 arranged on the inner peripheral side of the wheel rim 10.
  • the wheel body 101 of this embodiment is a so-called one-piece type wheel in which a wheel rim 10 and a wheel disc 20 are integrally molded.
  • one side of the wheel body 101 in the wheel axis direction (Y-axis positive direction side) is referred to as "outer side”
  • the other side in the wheel axis direction Y-axis negative direction side) is referred to as "inner side”.
  • the outer side of the vehicle wheel 100 is directed to the side opposite to the vehicle body, and the inner side of the vehicle wheel 100 is It is directed toward the vehicle body.
  • the outer surface of the vehicle wheel 100 is the design surface.
  • the outer side corresponds to the wheel front surface side in the claims, and the inner side corresponds to the wheel back surface side in the claims.
  • the wheel rim 10 is substantially annular in the wheel axial direction (Y-axis direction).
  • the wheel disc 20 is located on the outer side of the wheel rim 10, and includes a hub mounting portion 220 and a plurality of (10 spoke portions in this embodiment) spoke portions 210.
  • the hub mounting portion 220 has a substantially disk shape, and is located substantially at the center of the wheel disc 20 in the wheel axial direction (Y-axis direction).
  • a hub hole 222 to which the hub 1 of the vehicle body is connected is formed at substantially the center of the hub mounting portion 220.
  • a plurality of bolt holes 224 for fixing the vehicle wheel 100 to the hub of the vehicle body are formed around the hub hole 222.
  • the plurality of spoke portions 210 are arranged radially between the wheel rim 10 and the hub mounting portion 220.
  • the hub 1 includes a flat plate-shaped base portion 2 and a plurality of (five in this embodiment) serration bolts 3.
  • a circular protrusion 7 is formed in the center of one surface of the base portion 2.
  • a plurality of serration bolts 3 are arranged so as to project toward the outer side around the protruding portion 7 on the one surface of the base portion 2.
  • Male threads are formed on the outer peripheral surface of each serration bolt 3.
  • the outer diameter of each serration bolt 3 is smaller than the diameter of each bolt hole 224 formed in the wheel body 101 described above. Each serration bolt 3 is inserted into each bolt hole 224 (see FIG. 4 described later).
  • the nut member 4 is a tubular member having one end open and the other end closed, and is made of a material (for example, metal) having higher rigidity than resin. Further, a female screw is formed on the inner peripheral surface 5 of the nut member 4, so that the nut member 4 can be screwed into the serration bolt 3 of the hub 1. A tapered pressing surface 6 having an outer diameter that decreases toward the inner side is formed at the tip of the nut member 4 on the inner side.
  • the serration bolt 3 and the nut member 4 correspond to the fastening members within the scope of the claims.
  • the vehicle wheel 100 includes an outer bush 300, an inner bush 400, and a hub plate 500 in addition to the wheel body 101 described above.
  • the hub plate 500 is a disk-shaped member, and a hub insertion hole 502 is formed in the center, and a plurality of (five in this embodiment) hub through holes 504 are formed around the hub insertion hole 502. .
  • the hub plate 500 is arranged between the base portion 2 of the hub 1 and the hub mounting portion 220 of the wheel body 101.
  • the protrusion 7 in the hub 1 is inserted into the hub insertion hole 502 of the hub plate 500.
  • Each serration bolt 3 in the hub 1 is inserted into the bolt hole 224 of the hub mounting portion 220 via each hub through hole 504 of the hub plate 500.
  • FIG. 3 and 4 are explanatory views showing an enlarged view of the YZ cross-sectional structure of the X1 portion in FIG. 2.
  • FIG. 3 shows the state before fastening the serration bolt 3 of the hub 1 and the nut member 4
  • FIG. 4 shows the state after fastening the serration bolt 3 of the hub 1 and the nut member 4. Has been done.
  • the outer bush 300 is arranged between the hub mounting portion 220 of the wheel body 101 and the nut member 4.
  • the outer bush 300 is a cylindrical member through which the outer insertion hole 302 is formed as a whole, and is made of a material (for example, metal) having a higher rigidity than resin.
  • the outer bush 300 includes an outer main body 310 and an outer flange 320.
  • the outer bush 300 corresponds to the front member in the claims
  • the outer insertion hole 302 corresponds to the first insertion hole in the claims
  • the outer flange 320 corresponds to the first insertion hole in the claims. Corresponds to the flange of.
  • the outer body 310 is an annular portion when viewed in the wheel axis direction (Y axis direction).
  • the outer diameter of the outer body 310 is smaller than the diameter of the bolt hole 224 of the hub mounting portion 220.
  • the outer body 310 is arranged in the bolt hole 224. In order to prevent the outer bush 300 from rattling with respect to the bolt hole 224, it is preferable that the outer peripheral surface of the outer body 310 comes into contact with the inner peripheral surface of the bolt hole 224.
  • the outer flange 320 is an annular portion in the direction of the wheel axis, and is arranged adjacent to the outer body 310 on the outer side.
  • the outer diameter of the outer flange 320 is larger than the diameter of the bolt hole 224.
  • the outer flange 320 is arranged outside the bolt hole 224 and on the outer side with respect to the bolt hole 224. Therefore, the outer flange 320 has a first outer facing surface 304 facing the peripheral portion of the bolt hole 224 in the hub mounting portion 220 in the wheel axial direction.
  • the first outer facing surface 304 presses the peripheral portion of the bolt hole 224 in the hub mounting portion 220.
  • the outer bush 300 has a second outer facing surface 303 facing a part of the nut member 4 in the wheel axial direction.
  • the second outer facing surface 303 is a tapered surface in which the diameter of the outer insertion hole 302 decreases from the opening end on the outer side of the outer bush 300 toward the inner side.
  • the second outer facing surface 303 faces the pressing surface 6 of the nut member 4 in the wheel axial direction.
  • the inner bush 400 is arranged between the hub mounting portion 220 of the wheel body 101 and the base portion 2 of the hub 1.
  • the inner bush 400 is a cylindrical member through which the inner insertion hole 402 is formed as a whole, and is made of a material (for example, metal) having a higher rigidity than resin.
  • the inner bush 400 includes an inner main body 410 and an inner flange 420.
  • the inner bush 400 corresponds to the back side member in the claims
  • the inner insertion hole 402 corresponds to the second insertion hole in the claims
  • the inner flange 420 corresponds to the second insertion hole in the claims. Corresponds to the flange of.
  • the inner body 410 is an annular part when viewed in the wheel axis direction (Y axis direction).
  • the outer diameter of the inner body 410 is smaller than the diameter of the bolt hole 224 of the hub mounting portion 220.
  • the inner body 410 is arranged in the bolt hole 224. In order to prevent the inner bush 400 from rattling with respect to the bolt hole 224, it is preferable that the outer peripheral surface of the inner body 410 comes into contact with the inner peripheral surface of the bolt hole 224.
  • the inner flange 420 is an annular portion in the direction of the wheel axis, and is arranged adjacent to the inner body 410 on the inner side.
  • the outer diameter of the inner flange 420 is larger than the diameter of the bolt hole 224.
  • the inner flange 420 is arranged outside the bolt hole 224 and on the inner side with respect to the bolt hole 224. Therefore, the inner flange 420 has a first inner facing surface 404 facing the peripheral portion of the bolt hole 224 in the hub mounting portion 220 in the wheel axial direction.
  • the peripheral portion of the hub through hole 504 in the hub plate 500 is interposed between the peripheral portion of the bolt hole 224 and the first inner facing surface 404. That is, the hub plate 500 is sandwiched between the inner flange 420 of the inner bush 400 and the hub mounting portion 220 in the wheel axial direction.
  • the inner bush 400 has a second inner facing surface 403 facing a part of the hub 1 in the wheel axial direction.
  • the second inner facing surface 403 is an end surface on the inner side of the inner bush 400.
  • the second inner facing surface 403 faces the base portion 2 of the hub 1 in the wheel axial direction.
  • the serration bolt 3 of the hub 1 and the nut member 4 are fastened together, the second inner facing surface 403 comes into contact with the base portion 2 of the hub 1 and receives a pressing force from the base portion 2 toward the outer side.
  • the second inner facing surface 403 corresponds to the second facing portion in the claims.
  • the inner bush 400 has a third inner facing surface 406 facing the third outer facing surface 306 of the outer bush 300 in the bolt hole 224 of the hub mounting portion 220.
  • the third inner facing surface 406 faces the third outer facing surface 306 on the inner side of the outer bush 300 in the wheel axial direction.
  • the third inner facing surface 406 abuts on the third outer facing surface 306 of the outer bush 300.
  • the third inner facing surface 406 and the third outer facing surface 306 of the outer bush 300 may be separated from each other, but are in contact with each other. May be good.
  • the outer bush 300 and the inner bush 400 are configured to hold each other before the serration bolt 3 of the hub 1 and the nut member 4 are fastened.
  • the tip portion on the outer side of the inner bush 400 can be inserted into the tip portion on the inner side of the outer bush 300.
  • a groove 408 is formed on the outer peripheral surface of the tip portion of the inner bush 400 on the outer side.
  • a protrusion 308 that can be inserted into the groove 408 is formed on the inner peripheral surface of the tip portion of the outer bush 300 on the inner side. Therefore, as shown in FIG. 3, the outer bush 300 is elastically deformed so that the protrusion 308 gets over the tip of the inner bush 400 on the outer side and enters the groove 408. As a result, the outer bush 300 can hold the inner bush 400.
  • the third inner facing surface 406 of the inner bush 400 becomes the third outer facing surface 306 of the outer bush 300. Hits.
  • the resin hub mounting portion 220 of the wheel body 101 is fastened by fastening the serration bolt 3 of the hub 1 and the nut member 4. It is possible to suppress excessive stress in the wheel axial direction.
  • the outer bush 300 and the inner bush 400 have a configuration in which they abut against each other in the bolt holes 224 formed in the hub mounting portion 220 (see FIG. 3).
  • the outer bush 300 and the inner bush 400 are compared with the configuration in which the outer bush 300 and the inner bush 400 abut on the outside of the bolt hole 224 (the position on the inner side or the outer side with respect to the bolt hole 224). Relative positional deviation in the direction perpendicular to the wheel axis direction can be suppressed.
  • the outer bush 300 since the outer bush 300 includes a protrusion 308 for holding the inner bush 400, the outer bush 300 and the inner bush 400 are provided before the serration bolt 3 of the hub 1 and the nut member 4 are fastened. Can be prevented from falling out of the bolt hole 224. Further, in the present embodiment, the tip portion on the outer side of the inner bush 400 can be inserted into the tip portion on the inner side of the outer bush 300. Therefore, the misalignment between the outer bush 300 and the inner bush 400 can be suppressed.
  • the hub plate 500 comes into contact with the hub mounting portion 220 and the hub 1 in the wheel axial direction, so that the stress due to the fastening is reduced. It is dispersed not only in the inner bush 400 but also in the hub plate 500. As a result, according to the present embodiment, it is possible to prevent the stress due to fastening from being concentrated on the inner bush 400 as compared with the configuration without the hub plate 500. Moreover, in the present embodiment, the hub plate 500 comes into contact with the peripheral portion of the inner bush 400 in the hub mounting portion 220 over the entire circumference in the direction of the wheel axis (see FIG. 2).
  • the stress due to fastening is evenly distributed in the peripheral portion of the inner bush 400.
  • the hub plate 500 is sandwiched between the inner flange 420 of the inner bush 400 and the hub mounting portion 220 in the wheel axial direction. Therefore, for example, it is possible to prevent the hub plate 500 from falling off before being fastened by the serration bolt 3 and the nut member 4 of the hub 1.
  • the wheel body 101 is a one-piece type wheel, but the present invention is not limited to this, and even if the wheel rim 10 and the wheel disc 20 are separate bodies, that is, a so-called two-piece type wheel. Good. Further, the wheel body 101 does not have to be entirely made of resin, and at least the hub mounting portion 220 may be made of resin. Further, in the above embodiment, as the vehicle wheel, the vehicle wheel 100 having the hub mounting portion 220 in which a plurality of bolt holes 224 are formed is illustrated, but the hub mounting portion 220 in which one bolt hole 224 is formed is illustrated. It may be a wheel for a vehicle to have.
  • the fastening member the member (nut member 4) arranged on the outer side of the bolt hole 224 in the vehicle wheel 100 and having a female screw formed, and the bolt hole 224 in the vehicle wheel 100.
  • An example is a configuration having a member (serration bolt 3) arranged on the inner side and having a male screw formed.
  • the fastening member is arranged on the outer side of the bolt hole 224 in the vehicle wheel 100, and has a member (hub bolt) in which a male screw and a seat surface are formed, and a member (hub) in which a female screw is formed. It may be a configuration.
  • the fastening member may have another fastening structure (press-fitting structure, etc.) instead of a screwing member such as a nut member or a bolt.
  • the inner bush 400 and the hub plate 500 may be integrally formed. With such a configuration, the number of parts of the vehicle wheel 100 can be reduced as compared with a configuration in which the inner bush 400 and the hub plate 500 are separate bodies. Further, in the above embodiment, the configuration may not include the hub plate 500. Further, in the above embodiment, another member may be interposed between the second outer facing surface 303 of the outer bush 300 and the pressing surface 6 of the nut member 4. That is, in the present specification, the fact that the A portion and the B portion face each other is not limited to the case where the A portion and the B portion directly face each other, and the A portion and the B portion indirectly face each other via separate members. Including the case of facing each other.
  • the tapered second outer facing surface 303 is illustrated as the first facing portion, but the first facing portion may be, for example, a plane perpendicular to the wheel axis direction, and for example. It does not have to be a flat surface such as a protrusion.
  • the second inner facing surface 403 is exemplified as the second facing portion, but the second facing portion may be, for example, a surface inclined in the wheel axis direction, and for example, a protrusion or the like. It does not have to be a surface.
  • the third inner facing surface 406 may be a flat surface inclined in the wheel axis direction, for example, or may not be a flat surface such as a protrusion.
  • the inner main body 410 of the inner bush 400 is inserted into the inner peripheral side of the outer main body 310 of the outer bush 300, and the third outer is located at the tip of the outer main body 310.
  • the facing surface 306 was configured to abut against the third inner facing surface 406 located on the outer peripheral side of the inner main body 410.
  • the present invention is not limited to this, and in the above embodiment, the tip of the inner main body 410 may abut against the facing portion located on the inner peripheral side of the outer main body 310.
  • the outer body 310 of the outer bush 300 may be inserted into the inner peripheral side of the inner body 410 of the inner bush 400 in the bolt hole 224.
  • the tip of the outer main body 310 may abut against the opposing portion located on the inner peripheral side of the inner main body 410, or the tip of the inner main body 410 may abut on the facing portion located on the outer peripheral side of the outer main body 310. It may be a configuration that hits.
  • the outer bush 300 may not include the outer main body 310, and the tip of the inner main body 410 of the inner bush 400 may abut against the outer flange 320 of the outer bush 300.
  • the inner bush 400 may not include the inner body 410, and the tip of the outer body 310 of the outer bush 300 may abut against the inner flange 420 of the inner bush 400.
  • the outer bush 300 and the inner bush 400 do not have to have a configuration for holding each other.
  • the tip of the inner bush 400 is press-fitted into the outer insertion hole 302 of the outer bush 300, and the tip of the outer bush 300 is press-fitted into the inner insertion hole 402 of the inner bush 400.
  • the outer bush 300 may hold the inner bush 400.
  • the outer bush 300 may be configured to hold the inner bush 400 by screwing or adhering the outer bush 300 and the inner bush 400.
  • Hub 2 Base part 3: Bolt 4: Nut member 5: Inner peripheral surface 6: Pressing surface 7: Protruding part 10: Wheel rim 20: Wheel disc 100: Vehicle wheel 101: Wheel body 210: Spoke part 220: Hub mounting part 222: Hub hole 224: Bolt hole 300: Outer bush 302: Outer insertion hole 303: Second outer facing surface 304: First outer facing surface 306: Third outer facing surface 308: Protrusion 310: Outer body 320: Outer flange 400: Inner bush 402: Inner insertion hole 403: Second inner facing surface 404: First inner facing surface 406: Third inner facing surface 408: Groove 410: Inner body 420: Inner flange 500: Hub plate 502: Hub insertion hole 504: Hub through hole

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Abstract

The present invention suppresses excessive stress from being exerted on a resin-made hub attachment part in a vehicular wheel. This vehicular wheel is provided with: a resin-made hub attachment part in which a bolt hole is formed; a surface-side member disposed on the wheel surface side of the bolt hole; and a reverse-surface side member disposed on the wheel reverse-surface side of the bolt hole. The surface-side member has: a first flange that has an outer diameter larger than the diameter of the bolt hole; and a first facing part that receives pressing force acting from a fastening member to the wheel reverse-surface side when fastened. The reverse-surface side member has: a second flange that has an outer diameter larger than the diameter of the bolt hole; and a second facing part that receives pressing force acting from a hub to the wheel surface side when fastened. The surface-side member and the reverse-surface side member are configured to abut each other in the axial direction of the wheel when fastened by the fastening member.

Description

車両用ホイールVehicle wheels
　本明細書に開示される技術は、車両用ホイールに関する。 The technology disclosed in this specification relates to a vehicle wheel.
　例えば繊維強化樹脂材料等の樹脂により形成されたホイール本体を備える車両用ホイールが知られている。このような樹脂製のホイール本体は、アルミニウム合金やマグネシウム合金などの軽合金により形成された従来のホイール本体に比べて軽いため、車両の軽量化への貢献が期待されている。 For example, a wheel for a vehicle having a wheel body formed of a resin such as a fiber reinforced resin material is known. Since such a resin wheel body is lighter than a conventional wheel body formed of a light alloy such as an aluminum alloy or a magnesium alloy, it is expected to contribute to weight reduction of the vehicle.
　樹脂製のホイール本体を、車両のハブに連結するための従来の構成は、次の通りである。すなわち、ホイール本体のハブ取付部に形成された各ボルト孔に対して、ホイール表面側から筒状の固定ワッシャが装着されている。固定ワッシャは、フランジを有している。このフランジは、ボルト孔に対してホイール表面側に位置しており、フランジの外径はボルト孔の径より大きい。また、固定ワッシャに対してホイール表面側には固定ナットが配置される。固定ナットは、ハブに設けられたホイールスタッドであって、固定ワッシャの貫通孔を貫通したホイールスタッドの先端部に螺合により締結されている。固定ナットとホイールスタッドとの締結により、固定ナットとハブとの間に、ホイール本体のハブ取付部と固定ワッシャとが挟み込まれることにより、ホイール本体がハブに連結される。また、固定ナットからの軸方向の応力は、固定ワッシャを介して間接的に樹脂製のホイール本体に付与される（下記特許文献１参照）。 The conventional configuration for connecting the resin wheel body to the hub of the vehicle is as follows. That is, a tubular fixed washer is attached to each bolt hole formed in the hub mounting portion of the wheel body from the wheel surface side. The fixed washer has a flange. This flange is located on the wheel surface side with respect to the bolt hole, and the outer diameter of the flange is larger than the diameter of the bolt hole. Further, a fixing nut is arranged on the wheel surface side with respect to the fixed washer. The fixing nut is a wheel stud provided on the hub and is screwed to the tip of the wheel stud that penetrates the through hole of the fixing washer. By fastening the fixing nut and the wheel stud, the hub mounting portion of the wheel body and the fixing washer are sandwiched between the fixing nut and the hub, so that the wheel body is connected to the hub. Further, the axial stress from the fixing nut is indirectly applied to the resin wheel body via the fixing washer (see Patent Document 1 below).
国際公開第２０１３／０００００９号International Publication No. 2013/000009
　しかし、従来の構成では、固定ナットとホイールスタッドとで締結した際、固定ワッシャは、固定ナットからの押圧力を受けることにより何らの規制もなくホイール裏面側に押し込まれる。このため、樹脂製のホイール本体に過剰な軸方向の応力がかかる。その結果、例えば、締結による軸方向の応力によって樹脂製のホイール本体が損傷するおそれがある。 However, in the conventional configuration, when the fixing nut and the wheel stud are fastened, the fixed washer is pushed to the back side of the wheel without any restriction by receiving the pressing force from the fixing nut. Therefore, excessive axial stress is applied to the resin wheel body. As a result, for example, the resin wheel body may be damaged by the axial stress caused by fastening.
　本明細書では、上述した課題の少なくとも一部を解決することが可能な技術を開示する。 This specification discloses a technique capable of solving at least a part of the above-mentioned problems.
　本明細書に開示される技術は、以下の形態として実現することが可能である。 The technology disclosed in this specification can be realized in the following forms.
（１）本明細書に開示される車両用ホイールは、締結部材で締結することにより車両本体のハブに連結される車両用ホイールであって、前記車両用ホイールは、前記締結部材が挿入されるボルト孔が貫通形成されると共に樹脂材料により形成されたハブ取付部と、前記ボルト孔のホイール表面側に配置され、前記締結部材が挿入される第１の挿入孔が形成された表側部材と、前記ボルト孔のホイール裏面側に配置され、前記締結部材が挿入される第２の挿入孔が形成された裏側部材と、を備え、前記表側部材は、外径が前記ボルト孔の径よりも大きい第１のフランジと、ホイール軸方向において前記締結部材の一部と対向し、前記締結部材で締結した際に前記締結部材から前記ホイール裏面側に向かう押圧力を受ける第１の対向部と、を有し、前記裏側部材は、外径が前記ボルト孔の径よりも大きい第２のフランジと、前記ホイール軸方向において前記ハブの一部と対向し、前記締結部材で締結した際に前記ハブから前記ホイール表面側に向かう押圧力を受ける第２の対向部と、を有し、前記表側部材と前記裏側部材とは、前記締結部材で締結した際に、前記表側部材の一部と前記裏側部材の一部とが前記ホイール軸方向で互いに突き当たるよう構成されている。 (1) The vehicle wheel disclosed in the present specification is a vehicle wheel that is connected to a hub of a vehicle body by fastening with a fastening member, and the fastening member is inserted into the vehicle wheel. A hub mounting portion formed through the bolt holes and made of a resin material, and a front side member arranged on the wheel surface side of the bolt holes and formed with a first insertion hole into which the fastening member is inserted. The front side member includes a back side member which is arranged on the wheel back surface side of the bolt hole and has a second insertion hole into which the fastening member is inserted, and the outer diameter of the front side member is larger than the diameter of the bolt hole. A first flange and a first facing portion that faces a part of the fastening member in the wheel axial direction and receives a pressing force from the fastening member toward the back surface side of the wheel when the fastening member is fastened. The back side member faces a second flange having an outer diameter larger than the diameter of the bolt hole and a part of the hub in the wheel axial direction, and when fastened with the fastening member, the hub is used. It has a second facing portion that receives a pressing force toward the wheel surface side, and when the front side member and the back side member are fastened with the fastening member, a part of the front side member and the back side member are used. Is configured to abut against each other in the wheel axial direction.
　本車両用ホイールでは、締結部材で車両本体のハブに車両用ホイールを締結した際に、表側部材の第１の対向部が締結部材からホイール裏面側に向かう押圧力を受ける。また、裏側部材の第２の対向部が締結部材からホイール表面側に向かう押圧力を受ける。そして、その押圧力によって、車両用ホイールのハブ取付部におけるボルト孔の周囲部分が、表側部材の第１のフランジとハブとの間に挟み込まれることにより、車両用ホイールをハブに取り付けることができる。さらに、本車両用ホイールでは、締結部材で締結した際に、ボルト孔内において表側部材の一部と裏側部材の一部とがホイール軸方向で互いに突き当たる。これにより、本車両用ホイールによれば、表側部材と裏側部材とが互いに突き当たらない構成に比べて、締結部材による締結によって車両用ホイールにおける樹脂製のハブ取付部に過剰な軸方向の応力がかかることを抑制することができる。 In this vehicle wheel, when the vehicle wheel is fastened to the hub of the vehicle body with the fastening member, the first facing portion of the front side member receives a pressing force from the fastening member toward the back surface side of the wheel. Further, the second facing portion of the back side member receives a pressing force from the fastening member toward the wheel surface side. Then, due to the pressing force, the peripheral portion of the bolt hole in the hub mounting portion of the vehicle wheel is sandwiched between the first flange of the front side member and the hub, so that the vehicle wheel can be mounted on the hub. .. Further, in the wheel for this vehicle, when fastened with the fastening member, a part of the front side member and a part of the back side member abut each other in the wheel axial direction in the bolt hole. As a result, according to the present vehicle wheel, an excessive axial stress is applied to the resin hub mounting portion of the vehicle wheel by fastening with the fastening member, as compared with the configuration in which the front side member and the back side member do not abut against each other. This can be suppressed.
（２）上記車両用ホイールにおいて、前記表側部材と前記裏側部材とは、前記締結部材で締結した際に、前記ボルト孔内において前記表側部材の一部と前記裏側部材の一部とが前記ホイール軸方向で互いに突き当たるよう構成されている。これにより、本車両用ホイールによれば、例えば、表側部材と裏側部材とがボルト孔の外で突き当たる構成に比べて、表側部材と裏側部材とのホイール軸方向に垂直な方向における相対的な位置ズレを抑制することができる。 (2) In the vehicle wheel, when the front side member and the back side member are fastened with the fastening member, a part of the front side member and a part of the back side member are in the bolt hole. It is configured to abut each other in the axial direction. As a result, according to the wheel for the present vehicle, for example, the relative positions of the front member and the back member in the direction perpendicular to the wheel axis direction are compared with the configuration in which the front member and the back member abut each other outside the bolt holes. The deviation can be suppressed.
（３）上記車両用ホイールにおいて、前記表側部材と前記裏側部材とは、前記ボルト孔内において互いに保持する構成としてもよい。本車両用ホイールによれば、表側部材や裏側部材がボルト孔から脱落することを抑制することができる。 (3) In the vehicle wheel, the front side member and the back side member may be configured to hold each other in the bolt holes. According to the wheel for this vehicle, it is possible to prevent the front side member and the back side member from falling out from the bolt holes.
（４）上記車両用ホイールにおいて、上記車両用ホイールにおいて、前記車両用ホイールは、前記ハブ取付部の前記ホイール裏面側に配置されるハブプレートを、さらに備え、前記ハブプレートは、前記締結部材で締結した際に、前記ハブ取付部と前記ハブとに前記ホイール軸方向で接触し、前記ホイール軸方向において前記裏側部材の前記第２のフランジと前記ハブ取付部とで挟持されている構成としてもよい。本車両用ホイールでは、締結部材で締結した際に、ハブプレートがハブ取付部とハブとにホイール軸方向で接触するため、締結部材の締結による応力が、裏側部材だけでなく、ハブプレートに分散される。これにより、本車両用ホイールによれば、ハブプレートを備えない構成に比べて、締結部材の締結による応力が裏側部材に集中的にかかることを抑制することができる。また、本車両用ホイールによれば、ハブプレートは、ホイール軸方向において裏側部材の第２のフランジとハブ取付部とで挟持されているため、例えば締結部材による締結前においてハブプレートが脱落することを抑制することができる。 (4) In the vehicle wheel, in the vehicle wheel, the vehicle wheel further includes a hub plate arranged on the back surface side of the wheel of the hub mounting portion, and the hub plate is a fastening member. When the wheels are fastened, the hub mounting portion and the hub are in contact with each other in the wheel axial direction, and are sandwiched between the second flange of the back member and the hub mounting portion in the wheel axial direction. Good. In this vehicle wheel, when the wheel is fastened with the fastening member, the hub plate comes into contact with the hub mounting portion and the hub in the wheel axial direction, so that the stress caused by fastening the fastening member is distributed not only to the back side member but also to the hub plate. Will be done. As a result, according to the wheel for this vehicle, it is possible to prevent the stress due to the fastening of the fastening member from being concentrated on the back side member as compared with the configuration without the hub plate. Further, according to the wheel for this vehicle, since the hub plate is sandwiched between the second flange of the back side member and the hub mounting portion in the wheel axial direction, for example, the hub plate may fall off before fastening with the fastening member. Can be suppressed.
　なお、本明細書に開示される技術は、種々の形態で実現することが可能であり、例えば、車両用ホイール、その製造方法等の形態で実現することが可能である。 The technology disclosed in the present specification can be realized in various forms, for example, a vehicle wheel, a manufacturing method thereof, and the like.
本実施形態における車両用ホイール１００のホイール本体１０１の外観構成を概略的に示すＸＺ平面図である。FIG. 5 is an XZ plan view schematically showing an external configuration of a wheel body 101 of a vehicle wheel 100 according to the present embodiment. ホイール本体１０１のハブ取付部２２０のＹＺ断面構成を概略的に示す説明図である。It is explanatory drawing which shows schematic the YZ cross-sectional structure of the hub mounting part 220 of a wheel body 101. 図２におけるＸ１部分のＹＺ断面構成を拡大して示す説明図である（締結前の状態）。It is explanatory drawing which enlarges and shows the YZ cross-sectional structure of the X1 part in FIG. 2 (state before fastening). 図２におけるＸ１部分のＹＺ断面構成を拡大して示す説明図である（締結後の状態）。It is explanatory drawing which enlarges and shows the YZ cross-sectional structure of the X1 part in FIG. 2 (state after fastening).
Ａ．実施形態：
Ａ－１．車両用ホイール１００の構成：
　図１は、本実施形態における車両用ホイール１００のホイール本体１０１の外観構成を概略的に示すＸＺ平面図であり、図２は、ホイール本体１０１のハブ取付部２２０のＹＺ断面構成を概略的に示す説明図である。図２には、図１のＩＩ－ＩＩの位置におけるＹＺ断面構成が示されている。各図には、方向を特定するための互いに直交するＸＹＺ軸が示されている。本明細書では、便宜的に、Ｙ軸方向は、車両用ホイール１００（ホイール本体１０１）の回転軸に平行な方向であるとし、以下、「ホイール軸方向」というものとするが、車両用ホイール１００は実際にはそのような向きとは異なる向きで配置されてもよい。図３以降についても同様である。 A. Embodiment:
A-1. Configuration of vehicle wheel 100:
FIG. 1 is an XZ plan view schematically showing an external configuration of a wheel body 101 of a vehicle wheel 100 according to the present embodiment, and FIG. 2 is a schematic view of a YZ cross-sectional configuration of a hub mounting portion 220 of the wheel body 101. It is explanatory drawing which shows. FIG. 2 shows the YZ cross-sectional configuration at the position II-II in FIG. Each figure shows XYZ axes that are orthogonal to each other to identify the direction. In the present specification, for convenience, the Y-axis direction is assumed to be a direction parallel to the rotation axis of the vehicle wheel 100 (wheel body 101), and is hereinafter referred to as "wheel axial direction". The 100 may actually be arranged in a different orientation than that. The same applies to FIGS. 3 and later.
（ホイール本体１０１の構成）
　ホイール本体１０１は、例えば熱可塑性カーボン樹脂や熱硬化性カーボン樹脂等の樹脂により形成されている。ホイール本体１０１は、略円筒状のホイールリム１０と、該ホイールリム１０の内周側に配置されたホイールディスク２０と、を備える。本実施形態のホイール本体１０１は、ホイールリム１０とホイールディスク２０とが一体成形された、いわゆる１ピースタイプのホイールである。以下、ホイール本体１０１に対してホイール軸方向の一方側（Ｙ軸正方向側）を「アウター側」といい、ホイール軸方向の他方側（Ｙ軸負方向側）を「インナー側」という。車両用ホイール１００が車両本体（図２ではハブ１のみ図示）に装着された場合、車両用ホイール１００のアウター側は、車両本体とは反対側に向けられ、車両用ホイール１００のインナー側は、車両本体側に向けられる。車両用ホイール１００のアウター側の面が意匠面とされる。なお、アウター側は、特許請求の範囲におけるホイール表面側に相当し、インナー側は、特許請求の範囲におけるホイール裏面側に相当する。 (Structure of wheel body 101)
The wheel body 101 is formed of, for example, a resin such as a thermoplastic carbon resin or a thermosetting carbon resin. The wheel body 101 includes a substantially cylindrical wheel rim 10 and a wheel disc 20 arranged on the inner peripheral side of the wheel rim 10. The wheel body 101 of this embodiment is a so-called one-piece type wheel in which a wheel rim 10 and a wheel disc 20 are integrally molded. Hereinafter, one side of the wheel body 101 in the wheel axis direction (Y-axis positive direction side) is referred to as "outer side", and the other side in the wheel axis direction (Y-axis negative direction side) is referred to as "inner side". When the vehicle wheel 100 is mounted on the vehicle body (only the hub 1 is shown in FIG. 2), the outer side of the vehicle wheel 100 is directed to the side opposite to the vehicle body, and the inner side of the vehicle wheel 100 is It is directed toward the vehicle body. The outer surface of the vehicle wheel 100 is the design surface. The outer side corresponds to the wheel front surface side in the claims, and the inner side corresponds to the wheel back surface side in the claims.
　図１および図２に示すように、ホイールリム１０は、ホイール軸方向（Ｙ軸方向）視で略円環状である。ホイールディスク２０は、ホイールリム１０におけるアウター側に位置しており、ハブ取付部２２０と、複数（本実施形態では１０本）のスポーク部２１０とを含む。ハブ取付部２２０は、略円盤状であり、ホイール軸方向（Ｙ軸方向）視でホイールディスク２０の略中央に位置している。ハブ取付部２２０の略中心には、車両本体のハブ１が連結されるハブ孔２２２が形成されている。また、ハブ孔２２２の周囲には、車両用ホイール１００を車両本体のハブに固定するための複数のボルト孔２２４が形成されている。複数のスポーク部２１０は、ホイールリム１０とハブ取付部２２０との間に放射状に配置されている。 As shown in FIGS. 1 and 2, the wheel rim 10 is substantially annular in the wheel axial direction (Y-axis direction). The wheel disc 20 is located on the outer side of the wheel rim 10, and includes a hub mounting portion 220 and a plurality of (10 spoke portions in this embodiment) spoke portions 210. The hub mounting portion 220 has a substantially disk shape, and is located substantially at the center of the wheel disc 20 in the wheel axial direction (Y-axis direction). A hub hole 222 to which the hub 1 of the vehicle body is connected is formed at substantially the center of the hub mounting portion 220. Further, a plurality of bolt holes 224 for fixing the vehicle wheel 100 to the hub of the vehicle body are formed around the hub hole 222. The plurality of spoke portions 210 are arranged radially between the wheel rim 10 and the hub mounting portion 220.
（車両用ホイール１００をハブ１に取り付けるための構成）
　図２に示すように、ハブ１は、平板状のベース部２と、複数本（本実施形態では５本）のセレーションボルト３と、を備える。ベース部２の一方の面の中央には、円形状の突出部７が形成されている。ベース部２の該一方の面における突出部７の周囲には、複数のセレーションボルト３がアウター側に突出するように配置されている。各セレーションボルト３の外周面には、雄ねじが形成されている。各セレーションボルト３の外径は、上述したホイール本体１０１に形成された各ボルト孔２２４の径より小さい。各セレーションボルト３は、各ボルト孔２２４に挿入される（後述の図４参照）。 (Configuration for attaching the vehicle wheel 100 to the hub 1)
As shown in FIG. 2, the hub 1 includes a flat plate-shaped base portion 2 and a plurality of (five in this embodiment) serration bolts 3. A circular protrusion 7 is formed in the center of one surface of the base portion 2. A plurality of serration bolts 3 are arranged so as to project toward the outer side around the protruding portion 7 on the one surface of the base portion 2. Male threads are formed on the outer peripheral surface of each serration bolt 3. The outer diameter of each serration bolt 3 is smaller than the diameter of each bolt hole 224 formed in the wheel body 101 described above. Each serration bolt 3 is inserted into each bolt hole 224 (see FIG. 4 described later).
　ナット部材４は、一端が開口し、他端が閉塞した筒状の部材であり、樹脂より剛性が高い材料（例えば金属）により形成されている。また、ナット部材４の内周面５には、雌ねじが形成されており、ハブ１のセレーションボルト３に螺合可能となっている。ナット部材４のインナー側の先端部には、インナー側に向かって外径が小さくなっているテーパ状の押圧面６が形成されている。なお、セレーションボルト３およびナット部材４は、特許請求の範囲における締結部材に相当する。 The nut member 4 is a tubular member having one end open and the other end closed, and is made of a material (for example, metal) having higher rigidity than resin. Further, a female screw is formed on the inner peripheral surface 5 of the nut member 4, so that the nut member 4 can be screwed into the serration bolt 3 of the hub 1. A tapered pressing surface 6 having an outer diameter that decreases toward the inner side is formed at the tip of the nut member 4 on the inner side. The serration bolt 3 and the nut member 4 correspond to the fastening members within the scope of the claims.
　車両用ホイール１００は、上述したホイール本体１０１に加えて、アウターブッシュ３００と、インナーブッシュ４００と、ハブプレート５００と、を備える。 The vehicle wheel 100 includes an outer bush 300, an inner bush 400, and a hub plate 500 in addition to the wheel body 101 described above.
　ハブプレート５００は、円盤状の部材であり、中央にハブ挿入孔５０２が形成されており、ハブ挿入孔５０２の周囲に複数（本実施形態では５つ）のハブ貫通孔５０４が形成されている。ハブプレート５００は、ハブ１におけるベース部２とホイール本体１０１におけるハブ取付部２２０との間に配置される。ハブ１における突出部７は、ハブプレート５００のハブ挿入孔５０２内に挿入される。ハブ１における各セレーションボルト３は、ハブプレート５００の各ハブ貫通孔５０４を介して、ハブ取付部２２０のボルト孔２２４に挿入される。 The hub plate 500 is a disk-shaped member, and a hub insertion hole 502 is formed in the center, and a plurality of (five in this embodiment) hub through holes 504 are formed around the hub insertion hole 502. .. The hub plate 500 is arranged between the base portion 2 of the hub 1 and the hub mounting portion 220 of the wheel body 101. The protrusion 7 in the hub 1 is inserted into the hub insertion hole 502 of the hub plate 500. Each serration bolt 3 in the hub 1 is inserted into the bolt hole 224 of the hub mounting portion 220 via each hub through hole 504 of the hub plate 500.
　図３および図４は、図２におけるＸ１部分のＹＺ断面構成を拡大して示す説明図である。図３には、ハブ１のセレーションボルト３とナット部材４との締結前の状態が示されており、図４には、ハブ１のセレーションボルト３とナット部材４との締結後の状態が示されている。 3 and 4 are explanatory views showing an enlarged view of the YZ cross-sectional structure of the X1 portion in FIG. 2. FIG. 3 shows the state before fastening the serration bolt 3 of the hub 1 and the nut member 4, and FIG. 4 shows the state after fastening the serration bolt 3 of the hub 1 and the nut member 4. Has been done.
　図２から図４に示すように、アウターブッシュ３００は、ホイール本体１０１のハブ取付部２２０とナット部材４との間に配置される。アウターブッシュ３００は、全体として、アウター挿入孔３０２が貫通形成された円筒状の部材であり、樹脂より剛性が高い材料（例えば金属）により形成されている。具体的には、アウターブッシュ３００は、アウター本体３１０と、アウターフランジ３２０とを備える。なお、アウターブッシュ３００は、特許請求の範囲における表側部材に相当し、アウター挿入孔３０２は、特許請求の範囲における第１の挿入孔に相当し、アウターフランジ３２０は、特許請求の範囲における第１のフランジに相当する。 As shown in FIGS. 2 to 4, the outer bush 300 is arranged between the hub mounting portion 220 of the wheel body 101 and the nut member 4. The outer bush 300 is a cylindrical member through which the outer insertion hole 302 is formed as a whole, and is made of a material (for example, metal) having a higher rigidity than resin. Specifically, the outer bush 300 includes an outer main body 310 and an outer flange 320. The outer bush 300 corresponds to the front member in the claims, the outer insertion hole 302 corresponds to the first insertion hole in the claims, and the outer flange 320 corresponds to the first insertion hole in the claims. Corresponds to the flange of.
　アウター本体３１０は、ホイール軸方向（Ｙ軸方向）視で円環状の部分である。アウター本体３１０の外径は、ハブ取付部２２０のボルト孔２２４の径より小さい。アウター本体３１０は、ボルト孔２２４内に配置される。なお、ボルト孔２２４に対するアウターブッシュ３００のガタツキ防止のため、アウター本体３１０の外周面は、ボルト孔２２４の内周面に接触することが好ましい。 The outer body 310 is an annular portion when viewed in the wheel axis direction (Y axis direction). The outer diameter of the outer body 310 is smaller than the diameter of the bolt hole 224 of the hub mounting portion 220. The outer body 310 is arranged in the bolt hole 224. In order to prevent the outer bush 300 from rattling with respect to the bolt hole 224, it is preferable that the outer peripheral surface of the outer body 310 comes into contact with the inner peripheral surface of the bolt hole 224.
　アウターフランジ３２０は、ホイール軸方向視で円環状の部分であり、アウター本体３１０に対してアウター側に隣接して配置されている。アウターフランジ３２０の外径は、ボルト孔２２４の径より大きい。アウターフランジ３２０は、ボルト孔２２４の外であって、かつ、ボルト孔２２４に対してアウター側に配置される。このため、アウターフランジ３２０は、ホイール軸方向において、ハブ取付部２２０におけるボルト孔２２４の周囲部分に対向する第１のアウター対向面３０４を有する。ハブ１のセレーションボルト３とナット部材４とで締結した際には、第１のアウター対向面３０４は、ハブ取付部２２０におけるボルト孔２２４の周囲部分を押圧する。 The outer flange 320 is an annular portion in the direction of the wheel axis, and is arranged adjacent to the outer body 310 on the outer side. The outer diameter of the outer flange 320 is larger than the diameter of the bolt hole 224. The outer flange 320 is arranged outside the bolt hole 224 and on the outer side with respect to the bolt hole 224. Therefore, the outer flange 320 has a first outer facing surface 304 facing the peripheral portion of the bolt hole 224 in the hub mounting portion 220 in the wheel axial direction. When the serration bolt 3 of the hub 1 and the nut member 4 are fastened together, the first outer facing surface 304 presses the peripheral portion of the bolt hole 224 in the hub mounting portion 220.
　また、アウターブッシュ３００は、ホイール軸方向において、ナット部材４の一部と対向する第２のアウター対向面３０３を有する。具体的には、第２のアウター対向面３０３は、アウターブッシュ３００におけるアウター側の開口端からインナー側に向かうに連れてアウター挿入孔３０２の径が小さくなるテーパ状の面である。第２のアウター対向面３０３は、ホイール軸方向において、ナット部材４の押圧面６と対向する。ハブ１のセレーションボルト３とナット部材４とで締結した際には、第２のアウター対向面３０３は、ナット部材４からインナー側に向かう押圧力を受ける。なお、第２のアウター対向面３０３は、特許請求の範囲における第１の対向部に相当する。 Further, the outer bush 300 has a second outer facing surface 303 facing a part of the nut member 4 in the wheel axial direction. Specifically, the second outer facing surface 303 is a tapered surface in which the diameter of the outer insertion hole 302 decreases from the opening end on the outer side of the outer bush 300 toward the inner side. The second outer facing surface 303 faces the pressing surface 6 of the nut member 4 in the wheel axial direction. When the serration bolt 3 of the hub 1 and the nut member 4 are fastened together, the second outer facing surface 303 receives a pressing force from the nut member 4 toward the inner side. The second outer facing surface 303 corresponds to the first facing portion in the claims.
　図２から図４に示すように、インナーブッシュ４００は、ホイール本体１０１のハブ取付部２２０とハブ１におけるベース部２との間に配置される。インナーブッシュ４００は、全体として、インナー挿入孔４０２が貫通形成された円筒状の部材であり、樹脂より剛性が高い材料（例えば金属）により形成されている。具体的には、インナーブッシュ４００は、インナー本体４１０と、インナーフランジ４２０とを備える。なお、インナーブッシュ４００は、特許請求の範囲における裏側部材に相当し、インナー挿入孔４０２は、特許請求の範囲における第２の挿入孔に相当し、インナーフランジ４２０は、特許請求の範囲における第２のフランジに相当する。 As shown in FIGS. 2 to 4, the inner bush 400 is arranged between the hub mounting portion 220 of the wheel body 101 and the base portion 2 of the hub 1. The inner bush 400 is a cylindrical member through which the inner insertion hole 402 is formed as a whole, and is made of a material (for example, metal) having a higher rigidity than resin. Specifically, the inner bush 400 includes an inner main body 410 and an inner flange 420. The inner bush 400 corresponds to the back side member in the claims, the inner insertion hole 402 corresponds to the second insertion hole in the claims, and the inner flange 420 corresponds to the second insertion hole in the claims. Corresponds to the flange of.
　インナー本体４１０は、ホイール軸方向（Ｙ軸方向）視で円環状の部分である。インナー本体４１０の外径は、ハブ取付部２２０のボルト孔２２４の径より小さい。インナー本体４１０は、ボルト孔２２４内に配置される。なお、ボルト孔２２４に対するインナーブッシュ４００のガタツキ防止のため、インナー本体４１０の外周面は、ボルト孔２２４の内周面に接触することが好ましい。 The inner body 410 is an annular part when viewed in the wheel axis direction (Y axis direction). The outer diameter of the inner body 410 is smaller than the diameter of the bolt hole 224 of the hub mounting portion 220. The inner body 410 is arranged in the bolt hole 224. In order to prevent the inner bush 400 from rattling with respect to the bolt hole 224, it is preferable that the outer peripheral surface of the inner body 410 comes into contact with the inner peripheral surface of the bolt hole 224.
　インナーフランジ４２０は、ホイール軸方向視で円環状の部分であり、インナー本体４１０に対してインナー側に隣接して配置されている。インナーフランジ４２０の外径は、ボルト孔２２４の径より大きい。インナーフランジ４２０は、ボルト孔２２４の外であって、かつ、ボルト孔２２４に対してインナー側に配置される。このため、インナーフランジ４２０は、ホイール軸方向において、ハブ取付部２２０におけるボルト孔２２４の周囲部分に対向する第１のインナー対向面４０４を有する。なお、本実施形態では、ボルト孔２２４の周囲部分と第１のインナー対向面４０４との間には、ハブプレート５００におけるハブ貫通孔５０４の周囲部分が介在する。すなわち、ハブプレート５００は、ホイール軸方向において、インナーブッシュ４００のインナーフランジ４２０とハブ取付部２２０との間に挟持される。 The inner flange 420 is an annular portion in the direction of the wheel axis, and is arranged adjacent to the inner body 410 on the inner side. The outer diameter of the inner flange 420 is larger than the diameter of the bolt hole 224. The inner flange 420 is arranged outside the bolt hole 224 and on the inner side with respect to the bolt hole 224. Therefore, the inner flange 420 has a first inner facing surface 404 facing the peripheral portion of the bolt hole 224 in the hub mounting portion 220 in the wheel axial direction. In the present embodiment, the peripheral portion of the hub through hole 504 in the hub plate 500 is interposed between the peripheral portion of the bolt hole 224 and the first inner facing surface 404. That is, the hub plate 500 is sandwiched between the inner flange 420 of the inner bush 400 and the hub mounting portion 220 in the wheel axial direction.
　また、インナーブッシュ４００は、ホイール軸方向において、ハブ１の一部と対向する第２のインナー対向面４０３を有する。具体的には、第２のインナー対向面４０３は、インナーブッシュ４００におけるインナー側の端面である。第２のインナー対向面４０３は、ホイール軸方向において、ハブ１におけるベース部２と対向する。ハブ１のセレーションボルト３とナット部材４とで締結した際には、第２のインナー対向面４０３は、ハブ１におけるベース部２に接触し、ベース部２からアウター側に向かう押圧力を受ける。なお、第２のインナー対向面４０３は、特許請求の範囲における第２の対向部に相当する。 Further, the inner bush 400 has a second inner facing surface 403 facing a part of the hub 1 in the wheel axial direction. Specifically, the second inner facing surface 403 is an end surface on the inner side of the inner bush 400. The second inner facing surface 403 faces the base portion 2 of the hub 1 in the wheel axial direction. When the serration bolt 3 of the hub 1 and the nut member 4 are fastened together, the second inner facing surface 403 comes into contact with the base portion 2 of the hub 1 and receives a pressing force from the base portion 2 toward the outer side. The second inner facing surface 403 corresponds to the second facing portion in the claims.
　さらに、インナーブッシュ４００は、ハブ取付部２２０のボルト孔２２４内において、アウターブッシュ３００の第３のアウター対向面３０６と対向する第３のインナー対向面４０６を有する。第３のインナー対向面４０６は、ホイール軸方向において、アウターブッシュ３００のインナー側の第３のアウター対向面３０６と対向する。ハブ１のセレーションボルト３とナット部材４とで締結した際には、第３のインナー対向面４０６は、アウターブッシュ３００の第３のアウター対向面３０６に突き当たる。ハブ１のセレーションボルト３とナット部材４との締結前では、第３のインナー対向面４０６とアウターブッシュ３００の第３のアウター対向面３０６とは互いに離間していてもよいが、接触していてもよい。 Further, the inner bush 400 has a third inner facing surface 406 facing the third outer facing surface 306 of the outer bush 300 in the bolt hole 224 of the hub mounting portion 220. The third inner facing surface 406 faces the third outer facing surface 306 on the inner side of the outer bush 300 in the wheel axial direction. When the serration bolt 3 of the hub 1 and the nut member 4 are fastened together, the third inner facing surface 406 abuts on the third outer facing surface 306 of the outer bush 300. Before fastening the serration bolt 3 of the hub 1 and the nut member 4, the third inner facing surface 406 and the third outer facing surface 306 of the outer bush 300 may be separated from each other, but are in contact with each other. May be good.
　また、車両用ホイール１００では、ハブ１のセレーションボルト３とナット部材４との締結前において、アウターブッシュ３００とインナーブッシュ４００とが互いに保持するよう構成されている。具体的には、インナーブッシュ４００におけるアウター側の先端部は、アウターブッシュ３００におけるインナー側の先端部内に挿入可能とされている。また、インナーブッシュ４００におけるアウター側の先端部の外周面には、溝４０８が形成されている。一方、アウターブッシュ３００におけるインナー側の先端部の内周面には、該溝４０８に挿入可能な突部３０８が形成されている。このため、図３に示すように、アウターブッシュ３００が弾性変形することにより、突部３０８が、インナーブッシュ４００におけるアウター側の先端を乗り越えて溝４０８内に入り込む。これにより、アウターブッシュ３００は、インナーブッシュ４００を保持することができる。 Further, in the vehicle wheel 100, the outer bush 300 and the inner bush 400 are configured to hold each other before the serration bolt 3 of the hub 1 and the nut member 4 are fastened. Specifically, the tip portion on the outer side of the inner bush 400 can be inserted into the tip portion on the inner side of the outer bush 300. Further, a groove 408 is formed on the outer peripheral surface of the tip portion of the inner bush 400 on the outer side. On the other hand, a protrusion 308 that can be inserted into the groove 408 is formed on the inner peripheral surface of the tip portion of the outer bush 300 on the inner side. Therefore, as shown in FIG. 3, the outer bush 300 is elastically deformed so that the protrusion 308 gets over the tip of the inner bush 400 on the outer side and enters the groove 408. As a result, the outer bush 300 can hold the inner bush 400.
　Ａ－２．本実施形態の効果：
　以上説明したように、本実施形態の車両用ホイール１００では、図４に示すように、ハブ１のセレーションボルト３とナット部材４とで締結した際に、アウターブッシュ３００の第２のアウター対向面３０３がナット部材４からインナー側に向かう押圧力を受ける。また、インナーブッシュ４００の第２のインナー対向面４０３がハブ１からアウター側に向かう押圧力を受ける。そして、その押圧力によって、ホイール本体１０１のハブ取付部２２０におけるボルト孔２２４の周囲部分が、アウターブッシュ３００とハブ１との間に挟み込まれることにより、ホイール本体１０１をハブ１に取り付けることができる。さらに、本車両用ホイール１００では、ハブ１のセレーションボルト３とナット部材４とで締結した際に、インナーブッシュ４００の第３のインナー対向面４０６が、アウターブッシュ３００の第３のアウター対向面３０６に突き当たる。これにより、本実施形態によれば、第３のインナー対向面４０６を備えない構成に比べて、ハブ１のセレーションボルト３とナット部材４との締結によってホイール本体１０１の樹脂製のハブ取付部２２０に過剰なホイール軸方向の応力がかかることを抑制することができる。 A-2. Effect of this embodiment:
As described above, in the vehicle wheel 100 of the present embodiment, as shown in FIG. 4, when the serration bolt 3 of the hub 1 and the nut member 4 are fastened, the second outer facing surface of the outer bush 300 is used. 303 receives a pressing force from the nut member 4 toward the inner side. Further, the second inner facing surface 403 of the inner bush 400 receives a pressing force from the hub 1 toward the outer side. Then, due to the pressing force, the peripheral portion of the bolt hole 224 in the hub mounting portion 220 of the wheel body 101 is sandwiched between the outer bush 300 and the hub 1, so that the wheel body 101 can be mounted on the hub 1. .. Further, in the wheel 100 for this vehicle, when the serration bolt 3 of the hub 1 and the nut member 4 are fastened, the third inner facing surface 406 of the inner bush 400 becomes the third outer facing surface 306 of the outer bush 300. Hits. As a result, according to the present embodiment, as compared with the configuration not provided with the third inner facing surface 406, the resin hub mounting portion 220 of the wheel body 101 is fastened by fastening the serration bolt 3 of the hub 1 and the nut member 4. It is possible to suppress excessive stress in the wheel axial direction.
　また、本実施形態によれば、アウターブッシュ３００とインナーブッシュ４００とは、ハブ取付部２２０に形成されたボルト孔２２４内において互いに突き当たる構成である（図３参照）。これにより、例えば、アウターブッシュ３００とインナーブッシュ４００とがボルト孔２２４の外（ボルト孔２２４に対してインナー側またはアウター側の位置）で突き当たる構成に比べて、アウターブッシュ３００とインナーブッシュ４００とのホイール軸方向に垂直な方向における相対的な位置ズレを抑制することができる。 Further, according to the present embodiment, the outer bush 300 and the inner bush 400 have a configuration in which they abut against each other in the bolt holes 224 formed in the hub mounting portion 220 (see FIG. 3). As a result, for example, the outer bush 300 and the inner bush 400 are compared with the configuration in which the outer bush 300 and the inner bush 400 abut on the outside of the bolt hole 224 (the position on the inner side or the outer side with respect to the bolt hole 224). Relative positional deviation in the direction perpendicular to the wheel axis direction can be suppressed.
　また、本実施形態によれば、アウターブッシュ３００は、インナーブッシュ４００を保持する突部３０８を備えるため、ハブ１のセレーションボルト３とナット部材４との締結前において、アウターブッシュ３００やインナーブッシュ４００がボルト孔２２４から脱落することを抑制することができる。また、本実施形態では、インナーブッシュ４００におけるアウター側の先端部は、アウターブッシュ３００におけるインナー側の先端部内に挿入可能とされている。このため、アウターブッシュ３００とインナーブッシュ４００との軸ずれを抑制することができる。 Further, according to the present embodiment, since the outer bush 300 includes a protrusion 308 for holding the inner bush 400, the outer bush 300 and the inner bush 400 are provided before the serration bolt 3 of the hub 1 and the nut member 4 are fastened. Can be prevented from falling out of the bolt hole 224. Further, in the present embodiment, the tip portion on the outer side of the inner bush 400 can be inserted into the tip portion on the inner side of the outer bush 300. Therefore, the misalignment between the outer bush 300 and the inner bush 400 can be suppressed.
　また、本実施形態では、ハブ１のセレーションボルト３とナット部材４とにより締結した際に、ハブプレート５００がハブ取付部２２０とハブ１とにホイール軸方向で接触するため、締結による応力が、インナーブッシュ４００だけでなく、ハブプレート５００に分散される。これにより、本実施形態によれば、ハブプレート５００を備えない構成に比べて、締結による応力がインナーブッシュ４００に集中的にかかることを抑制することができる。しかも、本実施形態では、ホイール軸方向視で、ハブプレート５００は、ハブ取付部２２０におけるインナーブッシュ４００の周囲部分に全周に亘って接触する（図２参照）。このため、締結による応力がインナーブッシュ４００の周囲部分に均等に分散される。これにより、締結による応力がインナーブッシュ４００に集中し、ハブ取付部２２０の特定箇所に過剰なホイール軸方向の応力がかかることを、より効果的に抑制することができる。また、本実施形態によれば、ハブプレート５００は、ホイール軸方向においてインナーブッシュ４００のインナーフランジ４２０とハブ取付部２２０とで挟持されている。このため、例えばハブ１のセレーションボルト３とナット部材４とによる締結前においてハブプレート５００が脱落することを抑制することができる。 Further, in the present embodiment, when the serration bolt 3 of the hub 1 and the nut member 4 are fastened, the hub plate 500 comes into contact with the hub mounting portion 220 and the hub 1 in the wheel axial direction, so that the stress due to the fastening is reduced. It is dispersed not only in the inner bush 400 but also in the hub plate 500. As a result, according to the present embodiment, it is possible to prevent the stress due to fastening from being concentrated on the inner bush 400 as compared with the configuration without the hub plate 500. Moreover, in the present embodiment, the hub plate 500 comes into contact with the peripheral portion of the inner bush 400 in the hub mounting portion 220 over the entire circumference in the direction of the wheel axis (see FIG. 2). Therefore, the stress due to fastening is evenly distributed in the peripheral portion of the inner bush 400. As a result, it is possible to more effectively suppress the stress due to fastening from being concentrated on the inner bush 400 and the excessive stress in the wheel axial direction being applied to a specific portion of the hub mounting portion 220. Further, according to the present embodiment, the hub plate 500 is sandwiched between the inner flange 420 of the inner bush 400 and the hub mounting portion 220 in the wheel axial direction. Therefore, for example, it is possible to prevent the hub plate 500 from falling off before being fastened by the serration bolt 3 and the nut member 4 of the hub 1.
Ｂ．変形例：
　本明細書で開示される技術は、上述の実施形態に限られるものではなく、その要旨を逸脱しない範囲において種々の形態に変形することができ、例えば次のような変形も可能である。 B. Modification example:
The technique disclosed in the present specification is not limited to the above-described embodiment, and can be transformed into various forms without departing from the gist thereof. For example, the following modifications are also possible.
　上記実施形態では、ホイール本体１０１は、１ピースタイプのホイールであるとしたが、これに限らず、ホイールリム１０とホイールディスク２０とが別体である、いわゆる２ピースタイプのホイールであるとしてもよい。また、ホイール本体１０１は、全体が樹脂製である必要は無く、少なくともハブ取付部２２０が樹脂製であればよい。また、上記実施形態では、車両用ホイールとして、複数のボルト孔２２４が形成されたハブ取付部２２０を有する車両用ホイール１００を例示したが、１つのボルト孔２２４が形成されたハブ取付部２２０を有する車両用ホイールであってもよい。 In the above embodiment, the wheel body 101 is a one-piece type wheel, but the present invention is not limited to this, and even if the wheel rim 10 and the wheel disc 20 are separate bodies, that is, a so-called two-piece type wheel. Good. Further, the wheel body 101 does not have to be entirely made of resin, and at least the hub mounting portion 220 may be made of resin. Further, in the above embodiment, as the vehicle wheel, the vehicle wheel 100 having the hub mounting portion 220 in which a plurality of bolt holes 224 are formed is illustrated, but the hub mounting portion 220 in which one bolt hole 224 is formed is illustrated. It may be a wheel for a vehicle to have.
　また、上記実施形態では、締結部材として、車両用ホイール１００におけるボルト孔２２４のアウター側に配置され、かつ、雌ねじが形成された部材（ナット部材４）と、車両用ホイール１００におけるボルト孔２２４のインナー側に配置され、かつ、雄ねじが形成された部材（セレーションボルト３）とを有する構成が例示された。しかし、締結部材は、車両用ホイール１００におけるボルト孔２２４のアウター側に配置され、かつ、雄ねじと座面とが形成された部材（ハブボルト）と、雌ねじが形成された部材（ハブ）とを有する構成であってもよい。また、締結部材は、ナット部材やボルト等の螺合部材でなく、他の締結構造（圧入構造等）を有するものであってもよい。 Further, in the above embodiment, as the fastening member, the member (nut member 4) arranged on the outer side of the bolt hole 224 in the vehicle wheel 100 and having a female screw formed, and the bolt hole 224 in the vehicle wheel 100. An example is a configuration having a member (serration bolt 3) arranged on the inner side and having a male screw formed. However, the fastening member is arranged on the outer side of the bolt hole 224 in the vehicle wheel 100, and has a member (hub bolt) in which a male screw and a seat surface are formed, and a member (hub) in which a female screw is formed. It may be a configuration. Further, the fastening member may have another fastening structure (press-fitting structure, etc.) instead of a screwing member such as a nut member or a bolt.
　また、上記実施形態において、インナーブッシュ４００とハブプレート５００とが一体で形成された構成であってもよい。このような構成であれば、インナーブッシュ４００とハブプレート５００とが別体である構成に比べて、車両用ホイール１００の部品点数を削減することができる。また、上記実施形態において、ハブプレート５００を備えない構成であってもよい。また、上記実施形態において、アウターブッシュ３００の第２のアウター対向面３０３とナット部材４の押圧面６との間に別部材が介在する構成であってもよい。すなわち、本明細書では、Ａ部とＢ部とが対向することは、Ａ部とＢ部とが直接対向する場合に限らず、Ａ部とＢ部とが、別部材を介して間接的に対向する場合も含む。 Further, in the above embodiment, the inner bush 400 and the hub plate 500 may be integrally formed. With such a configuration, the number of parts of the vehicle wheel 100 can be reduced as compared with a configuration in which the inner bush 400 and the hub plate 500 are separate bodies. Further, in the above embodiment, the configuration may not include the hub plate 500. Further, in the above embodiment, another member may be interposed between the second outer facing surface 303 of the outer bush 300 and the pressing surface 6 of the nut member 4. That is, in the present specification, the fact that the A portion and the B portion face each other is not limited to the case where the A portion and the B portion directly face each other, and the A portion and the B portion indirectly face each other via separate members. Including the case of facing each other.
　また、上記実施形態では、第１の対向部として、テーパ状の第２のアウター対向面３０３を例示したが、第１の対向部は、例えばホイール軸方向に垂直な平面でもよく、また、例えば突部など平面でなくてもよい。また、上記実施形態では、第２の対向部として、第２のインナー対向面４０３を例示したが、第２の対向部は、例えばホイール軸方向に傾斜した面でもよく、また、例えば突部など面でなくてもよい。また、上記実施形態において、第３のインナー対向面４０６は、例えばホイール軸方向に傾斜した平面でもよく、また、例えば突部など、平面でなくてもよい。 Further, in the above embodiment, the tapered second outer facing surface 303 is illustrated as the first facing portion, but the first facing portion may be, for example, a plane perpendicular to the wheel axis direction, and for example. It does not have to be a flat surface such as a protrusion. Further, in the above embodiment, the second inner facing surface 403 is exemplified as the second facing portion, but the second facing portion may be, for example, a surface inclined in the wheel axis direction, and for example, a protrusion or the like. It does not have to be a surface. Further, in the above embodiment, the third inner facing surface 406 may be a flat surface inclined in the wheel axis direction, for example, or may not be a flat surface such as a protrusion.
　また、上記実施形態では、ボルト孔２２４内において、アウターブッシュ３００のアウター本体３１０の内周側にインナーブッシュ４００のインナー本体４１０が挿入され、かつ、アウター本体３１０の先端に位置する第３のアウター対向面３０６が、インナー本体４１０の外周側に位置する第３のインナー対向面４０６に突き当たる構成であった。しかし、これに限らず、上記実施形態において、インナー本体４１０の先端が、アウター本体３１０の内周側に位置する対向部に突き当たる構成であってもよい。また、上記実施形態において、ボルト孔２２４内において、インナーブッシュ４００のインナー本体４１０の内周側に、アウターブッシュ３００のアウター本体３１０が挿入される構成であってもよい。この場合、アウター本体３１０の先端が、インナー本体４１０の内周側に位置する対向部に突き当たる構成であってもよいし、インナー本体４１０の先端が、アウター本体３１０の外周側に位置する対向部に突き当たる構成であってもよい。 Further, in the above embodiment, in the bolt hole 224, the inner main body 410 of the inner bush 400 is inserted into the inner peripheral side of the outer main body 310 of the outer bush 300, and the third outer is located at the tip of the outer main body 310. The facing surface 306 was configured to abut against the third inner facing surface 406 located on the outer peripheral side of the inner main body 410. However, the present invention is not limited to this, and in the above embodiment, the tip of the inner main body 410 may abut against the facing portion located on the inner peripheral side of the outer main body 310. Further, in the above embodiment, the outer body 310 of the outer bush 300 may be inserted into the inner peripheral side of the inner body 410 of the inner bush 400 in the bolt hole 224. In this case, the tip of the outer main body 310 may abut against the opposing portion located on the inner peripheral side of the inner main body 410, or the tip of the inner main body 410 may abut on the facing portion located on the outer peripheral side of the outer main body 310. It may be a configuration that hits.
　また、上記実施形態において、アウターブッシュ３００がアウター本体３１０を備えず、インナーブッシュ４００のインナー本体４１０の先端がアウターブッシュ３００のアウターフランジ３２０に突き当たる構成であってもよい。また、インナーブッシュ４００がインナー本体４１０を備えず、アウターブッシュ３００のアウター本体３１０の先端がインナーブッシュ４００のインナーフランジ４２０に突き当たる構成であってもよい。また、アウターブッシュ３００とインナーブッシュ４００とは、互いに保持するための構成を備えなくてもよい。また、上記実施形態において、アウターブッシュ３００のアウター挿入孔３０２内に、インナーブッシュ４００の先端部が圧入される構成や、インナーブッシュ４００のインナー挿入孔４０２内に、アウターブッシュ３００の先端部が圧入される構成により、アウターブッシュ３００がインナーブッシュ４００を保持する構成としてもよい。また、アウターブッシュ３００とインナーブッシュ４００との螺合や接着等により、アウターブッシュ３００がインナーブッシュ４００を保持する構成としてもよい。 Further, in the above embodiment, the outer bush 300 may not include the outer main body 310, and the tip of the inner main body 410 of the inner bush 400 may abut against the outer flange 320 of the outer bush 300. Further, the inner bush 400 may not include the inner body 410, and the tip of the outer body 310 of the outer bush 300 may abut against the inner flange 420 of the inner bush 400. Further, the outer bush 300 and the inner bush 400 do not have to have a configuration for holding each other. Further, in the above embodiment, the tip of the inner bush 400 is press-fitted into the outer insertion hole 302 of the outer bush 300, and the tip of the outer bush 300 is press-fitted into the inner insertion hole 402 of the inner bush 400. Depending on the configuration, the outer bush 300 may hold the inner bush 400. Further, the outer bush 300 may be configured to hold the inner bush 400 by screwing or adhering the outer bush 300 and the inner bush 400.
１：ハブ　２：ベース部　３：ボルト　４：ナット部材　５：内周面　６：押圧面　７：突出部　１０：ホイールリム　２０：ホイールディスク　１００：車両用ホイール　１０１：ホイール本体　２１０：スポーク部　２２０：ハブ取付部　２２２：ハブ孔　２２４：ボルト孔　３００：アウターブッシュ　３０２：アウター挿入孔　３０３：第２のアウター対向面　３０４：第１のアウター対向面　３０６：第３のアウター対向面　３０８：突部　３１０：アウター本体　３２０：アウターフランジ　４００：インナーブッシュ　４０２：インナー挿入孔　４０３：第２のインナー対向面　４０４：第１のインナー対向面　４０６：第３のインナー対向面　４０８：溝　４１０：インナー本体　４２０：インナーフランジ　５００：ハブプレート　５０２：ハブ挿入孔　５０４：ハブ貫通孔 1: Hub 2: Base part 3: Bolt 4: Nut member 5: Inner peripheral surface 6: Pressing surface 7: Protruding part 10: Wheel rim 20: Wheel disc 100: Vehicle wheel 101: Wheel body 210: Spoke part 220: Hub mounting part 222: Hub hole 224: Bolt hole 300: Outer bush 302: Outer insertion hole 303: Second outer facing surface 304: First outer facing surface 306: Third outer facing surface 308: Protrusion 310: Outer body 320: Outer flange 400: Inner bush 402: Inner insertion hole 403: Second inner facing surface 404: First inner facing surface 406: Third inner facing surface 408: Groove 410: Inner body 420: Inner flange 500: Hub plate 502: Hub insertion hole 504: Hub through hole

Claims (4)

  1. 　締結部材で締結することにより車両本体のハブに連結される車両用ホイールであって、
    　前記車両用ホイールは、
    　　前記締結部材が挿入されるボルト孔が貫通形成されると共に樹脂材料により形成されたハブ取付部と、
    　前記ボルト孔のホイール表面側に配置され、前記締結部材が挿入される第１の挿入孔が形成された表側部材と、
    　前記ボルト孔のホイール裏面側に配置され、前記締結部材が挿入される第２の挿入孔が形成された裏側部材と、
    　を備え、
    　前記表側部材は、
    　　外径が前記ボルト孔の径よりも大きい第１のフランジと、
    　　ホイール軸方向において前記締結部材の一部と対向し、前記締結部材で締結した際に前記締結部材から前記ホイール裏面側に向かう押圧力を受ける第１の対向部と、
    　　を有し、
    　前記裏側部材は、
    　　外径が前記ボルト孔の径よりも大きい第２のフランジと、
    　　前記ホイール軸方向において前記ハブの一部と対向し、前記締結部材で締結した際に前記ハブから前記ホイール表面側に向かう押圧力を受ける第２の対向部と、
    　　を有し、
    　前記表側部材と前記裏側部材とは、前記締結部材で締結した際に、前記表側部材の一部と前記裏側部材の一部とが前記ホイール軸方向で互いに突き当たるよう構成されている、
    車両用ホイール。     A wheel for a vehicle that is connected to the hub of the vehicle body by fastening with a fastening member.
    The vehicle wheel
    A hub mounting portion formed of a resin material as well as a through bolt hole into which the fastening member is inserted,
    A front side member arranged on the wheel surface side of the bolt hole and formed with a first insertion hole into which the fastening member is inserted.
    A back side member arranged on the back surface side of the wheel of the bolt hole and having a second insertion hole into which the fastening member is inserted.
    With
    The front side member is
    A first flange whose outer diameter is larger than the diameter of the bolt hole,
    A first facing portion that faces a part of the fastening member in the wheel axial direction and receives a pressing force from the fastening member toward the back surface side of the wheel when the fastening member is fastened.
    Have,
    The back side member
    A second flange whose outer diameter is larger than the diameter of the bolt hole,
    A second facing portion that faces a part of the hub in the wheel axial direction and receives a pressing force from the hub toward the wheel surface side when fastened with the fastening member.
    Have,
    The front side member and the back side member are configured such that when they are fastened with the fastening member, a part of the front side member and a part of the back side member abut each other in the wheel axial direction.
    Wheels for vehicles.
  2. 　請求項１に記載の車両用ホイールであって、
    　前記表側部材と前記裏側部材とは、前記締結部材で締結した際に、前記ボルト孔内において前記表側部材の一部と前記裏側部材の一部とが前記ホイール軸方向で互いに突き当たるよう構成されている、
    車両用ホイール。     The vehicle wheel according to claim 1.
    When the front side member and the back side member are fastened with the fastening member, a part of the front side member and a part of the back side member abut against each other in the bolt hole in the wheel axial direction. Yes,
    Wheels for vehicles.
  3. 　請求項１または請求項２に記載の車両用ホイールであって、
    　前記表側部材と前記裏側部材とは、前記ボルト孔内において互いに保持するよう構成されている、
    車両用ホイール。     The vehicle wheel according to claim 1 or 2.
    The front side member and the back side member are configured to hold each other in the bolt holes.
    Wheels for vehicles.
  4. 　請求項１から請求項３までのいずれか一項に記載の車両用ホイールであって、
    　前記車両用ホイールは、前記ハブ取付部の前記ホイール裏面側に配置されるハブプレートを、さらに備え、
    　前記ハブプレートは、
    　　前記締結部材で締結した際に、前記ハブ取付部と前記ハブとに前記ホイール軸方向で接触し、
    　　前記ホイール軸方向において前記裏側部材の前記第２のフランジと前記ハブ取付部とで挟持されている、
    車両用ホイール。     The vehicle wheel according to any one of claims 1 to 3.
    The vehicle wheel further includes a hub plate arranged on the back surface side of the wheel of the hub mounting portion.
    The hub plate is
    When fastened with the fastening member, the hub mounting portion and the hub are in contact with each other in the wheel axial direction.
    It is sandwiched between the second flange of the back side member and the hub mounting portion in the wheel axial direction.
    Wheels for vehicles.
PCT/JP2020/026640 2019-07-30 2020-07-08 Vehicular wheel WO2021020053A1 (en)

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Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS51113902A (en) * 1975-03-29 1976-10-07 Hiroyasu Hirano Assembly bore breakage preventive device for light metal alloy wheels of automobiles
JPS5885501U (en) * 1981-12-07 1983-06-10 大同工業株式会社 Light alloy wheels
JP2002293104A (en) * 2001-03-30 2002-10-09 Topy Ind Ltd Light type wheel for automobile and method for manufacturing thereof

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Publication number Priority date Publication date Assignee Title
EP0895875A1 (en) * 1997-02-26 1999-02-10 WASHI KOSAN Company Limited Magnesium alloy wheel for vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113902A (en) * 1975-03-29 1976-10-07 Hiroyasu Hirano Assembly bore breakage preventive device for light metal alloy wheels of automobiles
JPS5885501U (en) * 1981-12-07 1983-06-10 大同工業株式会社 Light alloy wheels
JP2002293104A (en) * 2001-03-30 2002-10-09 Topy Ind Ltd Light type wheel for automobile and method for manufacturing thereof

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