WO2017033299A1 - Wheel for automobile - Google Patents

Wheel for automobile Download PDF

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Publication number
WO2017033299A1
WO2017033299A1 PCT/JP2015/073940 JP2015073940W WO2017033299A1 WO 2017033299 A1 WO2017033299 A1 WO 2017033299A1 JP 2015073940 W JP2015073940 W JP 2015073940W WO 2017033299 A1 WO2017033299 A1 WO 2017033299A1
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WO
WIPO (PCT)
Prior art keywords
wheel
spoke
rim
disk
vehicle
Prior art date
Application number
PCT/JP2015/073940
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French (fr)
Japanese (ja)
Inventor
寛介 今井
薫 市川
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
Priority to PCT/JP2015/073940 priority Critical patent/WO2017033299A1/en
Priority to JP2017536124A priority patent/JP6466586B2/en
Publication of WO2017033299A1 publication Critical patent/WO2017033299A1/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
    • B60B3/08—Disc wheels, i.e. wheels with load-supporting disc body with disc body formed by two or more axially spaced discs
    • 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
    • B60B3/10—Disc wheels, i.e. wheels with load-supporting disc body apertured to simulate spoked wheels

Definitions

  • the present invention relates to an automobile wheel.
  • an automobile wheel including a “cylindrical rim” and a “disk joined to the rim” is widely known (see, for example, European Patent No. 1262333).
  • the disc includes a “hub portion”, “a plurality of spoke portions extending from the hub portion outward in the radial direction of the wheel”, and “a distal end portion of each of the plurality of spoke portions in the radial direction of the wheel” Connected annular ring portions ”. This ring part is joined to the rim.
  • the present invention has been made to cope with the above problems, and an object of the present invention is to provide a wheel that is easy to manufacture a disk and has high rigidity.
  • the automobile wheel (100) includes a “cylindrical rim (10)” and a “first disk (20)”, similarly to the wheel described in the above document.
  • the first disk (20) includes a “first hub portion (21)”, “a plurality of first spoke portions (22) extending from the first hub portion (21) outward in the wheel radial direction”, Ring-shaped ring portion (23) connected to the front end portion of each of the first spoke portions (22) in the radial direction of the wheel.
  • the ring portion (23) is joined to the rim (10).
  • a feature of the wheel (100) according to the present invention is that a “second disc (30)” is further provided in addition to the “first disc (20)”.
  • the second disk (30) includes a “second hub portion (31)” and “a plurality of second spoke portions (32) extending from the second hub portion (31) outward in the wheel radial direction”.
  • the second disk (30) is not provided with a portion corresponding to the ring part (23) of the first disk (20).
  • the distal end portion (32b) on the outer side in the wheel radial direction of each second spoke portion (32) is a “free end”.
  • the second hub part (31) is coaxial with the first hub part (21) and is located outside the vehicle.
  • Each of the plurality of second spoke portions (32) has a distal end portion (32b) on the outer side in the radial direction of the wheel at the position between the adjacent first spoke portions (22) in the wheel circumferential direction. It is joined with.
  • the total number of spoke portions in the entire wheel is equal to the plurality of first spoke portions of the first disk. And the number of the plurality of second spoke portions of the second disk. In other words, it is possible to increase the number of spoke portions of the entire wheel without increasing the number of spoke portions of the first and second disks. Therefore, it is possible to provide a wheel that is easy to manufacture and has high rigidity for each of the first and second disks.
  • each of the plurality of second spoke portions (32) is formed between the second spoke portion (31) and the adjacent first spoke portion (22). It extends so as to pass through the opening (W) from the outside of the vehicle toward the inside of the vehicle, and the tip (32b) and the rim (10) of each of the plurality of second spoke portions are joined together (hereinafter referred to as “Is referred to as the “first location”) relative to the location where the ring portion (23) of the first disk and the rim (10) are joined (hereinafter referred to as the “second location”). It is suitable to be configured.
  • the number of locations in the wheel axis direction in which the rim is supported by the spokes can be increased compared to the structure in which the “first location” is in the same position in the wheel axis direction with respect to the “second location”. it can. That is, a structure close to a so-called truss structure can be obtained. Therefore, the rigidity of the rim (and hence the rigidity of the entire wheel) can be further increased.
  • each second spoke part enters the corresponding “opening formed between adjacent first spoke parts” from the outside of the vehicle toward the inside of the vehicle.
  • the first and second spoke portions adjacent in the wheel circumferential direction intersect in the wheel axial direction. Therefore, a dynamic feeling can be given to the appearance of the wheel, and the value of the wheel can be further increased from the viewpoint of improving the aesthetic appearance.
  • the wheel (100) according to the present invention is configured such that parts of the first spoke part (22) and the second spoke part (32) that are adjacent in the wheel circumferential direction face each other in the wheel axial direction. Is preferable. That is, when the automobile wheel (100) is viewed from the outside of the vehicle along the wheel axis, the first spoke portion (22) and the second spoke portion (32) that are adjacent in the wheel circumferential direction have the first The spoke portion (22) and the second spoke portion (32) have a region where the spoke portion (22) overlaps (see region E in FIG. 8 described later).
  • the first spoke portion and the second spoke portion adjacent in the wheel circumferential direction are configured to intersect in the wheel circumferential direction. For this reason, a structure close to a so-called truss structure is obtained by the first spoke part and the second spoke part. As a result, the rigidity of the entire wheel can be increased. In addition, the appearance of the wheel can be further enhanced, and the value of the wheel can be further increased from the viewpoint of improving the aesthetics.
  • the first spoke part (22) and the second spoke part (32) are arranged in a non-contact manner.
  • the first spoke part and the second spoke part receive the stress from the rim independently of each other. For this reason, a structure close to a so-called truss structure is obtained by the first spoke part and the second spoke part. As a result, the rigidity of the entire wheel can be increased. In addition, the appearance of the wheel can be further enhanced, and the value of the wheel can be further increased from the viewpoint of improving the aesthetics.
  • the width in the wheel circumferential direction of each of the second spoke portions (32) of the second disk (30) is from the wheel radial direction inner end portion to the wheel radial direction outer end portion. It is preferable to be configured to gradually spread toward
  • FIG. 1 is a perspective view of an automobile wheel according to an embodiment of the present invention as seen from the outside of the vehicle.
  • FIG. 2 is an exploded perspective view of the wheel shown in FIG. 1 (showing a state before assembly).
  • FIG. 3 is a view showing a state of the wheel shown in FIG. 1 in which only the first disk is assembled to the rim and before the second disk is assembled.
  • FIG. 4 is a view of the wheel shown in FIG. 1 as viewed from the wheel axial direction and from the outside of the vehicle.
  • FIG. 5 is a diagram showing a cross-sectional structure taken along line AA of the wheel shown in FIG.
  • FIG. 6 is a diagram of the first disk shown in FIG. 2 as viewed from the wheel axial direction and from the outside of the vehicle.
  • FIG. 1 is a perspective view of an automobile wheel according to an embodiment of the present invention as seen from the outside of the vehicle.
  • FIG. 2 is an exploded perspective view of the wheel shown in FIG. 1 (showing a state before assembly
  • FIG. 7 is a view of the second disk alone shown in FIG. 2 as viewed from the wheel axial direction and from the outside of the vehicle.
  • FIG. 8 is a diagram illustrating a region where the first and second spoke portions overlap when the automobile wheel is viewed from the vehicle outer side along the wheel axis. It is a figure corresponding to Drawing 5 about the 1st modification of an embodiment of the present invention. It is a figure corresponding to FIG. 5 about the 2nd modification of embodiment of this invention. It is a figure corresponding to FIG. 5 about the 3rd modification of embodiment of this invention. It is a figure corresponding to FIG. 5 about the 4th modification of embodiment of this invention.
  • vehicle inner side (outer side) means the inner side (outer side) of the vehicle in the wheel axis direction in a state where the wheel 100 is mounted on the vehicle.
  • the wheel 100 includes a rim 10 to which an annular tire (not shown) is attached, a first disk 20, and a second disk 30.
  • Each of the rim 10, the first disk 20, and the second disk 30 is typically made of steel, but may be made of an aluminum alloy, a titanium alloy, a magnesium alloy, or the like. Each material may be the same or different.
  • the first disk 20 is assembled to the rim 10 from the outside of the vehicle
  • the second disk 30 is assembled to the subassembly including the rim and the first disk 20 from the outside of the vehicle.
  • a center cap 50 (not shown in FIGS. 2 and 3) is assembled to the second disk 30 from the outside of the vehicle.
  • the rim 10 having a cylindrical shape includes an inner flange portion 11, an inner bead seat portion 12, a well portion 13, an outer bead seat portion 14, and the like in order from the vehicle inner side to the vehicle outer side.
  • the outer flange portion 15 is provided.
  • the well portion 13 is a portion recessed in an annular shape toward the inner side in the wheel radial direction with respect to the inner and outer bead sheet portions 12 and 14.
  • the rim 10 can be integrally formed by performing roll forming or the like on a cylindrical material.
  • the first disk 20 includes a first hub portion 21, a plurality (five in this example) of first spoke portions 22, and a ring portion 23.
  • the entire first disk 20 can typically be integrally formed by subjecting a plate-shaped material to press working or the like.
  • the first hub portion 21 has a disk shape.
  • the first hub portion 21 is provided with a hub hole 21a coaxially with the wheel shaft, and a plurality of bolt holes 21b (five in this example) are provided around the hub hole 21a at equal intervals in the circumferential direction of the wheel. It has been.
  • the plurality of first spoke portions 22 extend outward in the radial direction of the wheel from the first hub portion 21 while being bent so as to protrude outward of the vehicle at equal intervals in the circumferential direction of the wheel.
  • An opening (slit, through hole) 22a extending in the wheel radial direction is provided at the center of each first spoke portion 22 in the wheel circumferential direction.
  • the opening 22 a is provided to improve the aesthetic appearance of the wheel 100 and to reduce the weight of the wheel 100.
  • the opening 22a may not be provided.
  • the width A1 (width in the direction perpendicular to the wheel radial direction) of each first spoke portion 22 is gradually and gradually increased from the wheel radial direction inner end to the wheel radial direction outer end. It is getting smaller.
  • the ring portion 23 has an annular shape and is arranged coaxially with the wheel shaft.
  • the ring portion 23 is integrally connected to the outer end portion in the wheel radial direction of each first spoke portion 22.
  • the first disk 20 is assembled to the rim 10 from the outside of the vehicle, and the tip of the ring portion 23 in the wheel radial direction is connected to the vehicle outer end of the rim 10 (specifically, The first disk 20 is fixed to the rim 10 by being joined to the outer flange portion 15 by welding or the like.
  • the second disk 30 includes a second hub portion 31 and a plurality (five in this example) of second spoke portions 32.
  • the second disk 30 is not provided with a portion corresponding to the ring portion 22 of the first disk 20. Therefore, as shown in FIG. 7, in the second disk 30 alone, the distal end portions 32 b of the second spoke portions 32 on the outer side in the wheel radial direction are “free ends”.
  • the entire second disk 30 can typically be integrally formed by subjecting a plate-shaped material to press working or the like.
  • the second hub portion 31 has a starfish shape, and the second hub portion 31 is provided with a hub hole 31a coaxially with the wheel shaft, and around the hub hole 31a, bolt holes 31b are equally spaced in the circumferential direction of the wheel. Are provided (five in this example).
  • the pitch diameter of the bolt holes 31b is the same as the pitch diameter of the bolt holes 21b.
  • the plurality of second spoke portions 32 extend from the second hub portion 31 to the outer side in the wheel radial direction while being bent so as to protrude outward from the vehicle at equal intervals in the circumferential direction of the wheel. Bending toward the inside of the vehicle.
  • An opening (slit, through hole) 32a extending in the wheel radial direction is provided at the center of each second spoke portion 32 in the wheel circumferential direction.
  • the opening 32 a is provided to improve the aesthetic appearance of the wheel 100 and reduce the weight of the wheel 100.
  • the opening 32a may not be provided.
  • the width A ⁇ b> 2 width in the direction perpendicular to the wheel radial direction of each second spoke portion 32 is gradually and gradually increased from the wheel radial direction inner end toward the wheel radial direction outer end. It is getting bigger.
  • the sub-assembly including the rim and the first disk 20 is bent from the vehicle outer side to the tip end portion 32b of each second spoke portion 32 (bent toward the vehicle inner side).
  • the vehicle inner end of the tip 32 b of each second spoke 32 is the center of the rim 10 in the wheel axial direction (specifically,
  • the second disk 30 is fixed to the rim 10 by being joined to the inner wall surface of the well portion 13) by welding or the like.
  • the joint location between each tip 32b and the rim 10 is the same in the wheel axial direction.
  • first spoke 22 and the second spoke portion 32 that are adjacent in the wheel circumferential direction are configured to face each other in the wheel axial direction. That is, in the first spoke portion 22 and the second spoke portion 32 that are adjacent to each other in the wheel circumferential direction, the first spoke portion 22 and the second spoke portion 32 when the automobile wheel 100 is viewed from the outside of the vehicle along the wheel axis. Has an area E (refer to the area shown by hatching in FIG. 8).
  • the first spoke portion 22 is the second spoke portion. 32 is configured to be located inside the vehicle.
  • the first spoke portion 22 and the second spoke portion 32 are configured to be arranged in a non-contact manner.
  • the second hub portion 31 of the second disk 30 is relative to the first hub portion 21 of the first disk 20.
  • the second hub portion 31 is in contact with the first hub portion 21 while being coaxial and located outside the vehicle.
  • the 1st, 2nd hub parts 21 and 31 may be mutually fixed by using joining members, such as a rivet, and do not need to be fixed.
  • the tip portions 32b of the plurality of second spoke portions 32 are adjacent to each other in the wheel circumferential direction. It is joined to the rim 10 at a position between 22.
  • the wheel circumferential direction phases of the respective bolt holes 31 b of the second hub portion 31 and the corresponding bolt holes 21 b of the first hub portion 21 coincide with each other. ing. Accordingly, one through hole constituted by the corresponding bolt holes 21b and 31b is formed at equal intervals in the wheel circumferential direction.
  • the total number of the spoke portions in the entire wheel 100 is the sum of the number of the first spoke portions 22 of the first disk 20 and the number of the second spoke portions 32 of the second disk 30. .
  • the number of spoke portions of the wheel 100 as a whole can be increased without increasing the number of spoke portions of the first and second disks 20 and 30. Accordingly, it is possible to provide the wheel 100 that is easy to manufacture and has high rigidity for each of the first and second disks 20 and 30.
  • a location (first location) where each tip portion 32 b of the plurality of second spoke portions 32 and the rim 10 are joined is a ring of the first disk 20.
  • the part 23 and the rim 10 are located on the vehicle inner side with respect to the part (second part) where the part 23 and the rim 10 are joined. Therefore, the number of locations in the wheel axis direction where the rim 10 is supported by the spokes can be increased as compared with the structure in which the “first location” and the “second location” are in the same position in the wheel axis direction. That is, a structure close to a so-called truss structure can be obtained. Therefore, the rigidity of the rim 10 (therefore, the rigidity of the entire wheel 100) can be further increased.
  • each second spoke portion 32 enters the corresponding opening W from the outside of the vehicle toward the inside of the vehicle.
  • the first and second spoke portions 22 and 32 adjacent in the wheel circumferential direction intersect with each other in the wheel axial direction. Therefore, a dynamic feeling can be given to the appearance of the wheel 100, and the value of the wheel 100 can be further increased from the viewpoint of improving aesthetics.
  • the first spoke 22 and the second spoke portion 32 that are adjacent in the wheel circumferential direction are opposed to each other in the wheel axial direction. It is configured. Therefore, the 1st spoke part 22 and the 2nd spoke part 32 which adjoin in the circumferential direction not only cross
  • the 1st spoke part 22 and the 2nd spoke part 32 are comprised so that it may be arrange
  • the width A1 (see FIG. 6) in the wheel circumferential direction of each second spoke portion 32 of the second disk 30 is the inner end in the wheel radial direction. From the wheel to the outer end in the radial direction of the wheel. For this reason, the width
  • limb 10 can be enlarged. Therefore, it is possible to increase the bonding strength between the tip 32b of each second spoke portion 32 and the rim 10, and as a result, it is possible to further increase the rigidity of the wheel 100 as a whole.
  • the number of the second spoke portions 32 of the second disk 30 is the same as the number of the first spoke portions 22 of the first disk 20 (5 in this example). However, the number may be smaller than the number of the first spoke portions 22 (for example, three).
  • limb 10 are joined is the ring part 23 of the 1st disc 20, and the rim
  • the “first place” and the “second place” are at the same position in the wheel axis direction
  • the “first place” may be located outside the vehicle with respect to the “second place”.
  • limb 10 are joined is the same in a wheel axial direction, it may differ. Thereby, the number of locations in the wheel axial direction where the rim 10 is supported by the spokes can be further increased, and the rigidity of the rim 10 (and hence the rigidity of the entire wheel 100) can be further increased.
  • the 1st spoke part 22 is 1st.
  • the wheel 100 is configured so as to be positioned inside the vehicle with respect to the two-spoke part 32, but in the region E, the wheel 100 is configured so that the second spoke part 32 is positioned inside the vehicle with respect to the first spoke 22. May be.
  • the 1st adjacent in a wheel circumferential direction is comprised.
  • the spoke 22 and the second spoke portion 32 may be configured not to face each other in the wheel axial direction.
  • first spoke portion 22 and the second spoke portion 32 are configured to be arranged in a non-contact manner, but a part of the first spoke portion 22 is a part of the second spoke portion 32. You may comprise so that a part may be contacted.
  • width A1 in the wheel circumferential direction of each 1st spoke part 22 of the 1st disc 20 continues toward a wheel radial direction outer side edge part from a wheel radial direction inner side edge part.
  • it may be constant in the wheel radial direction, or may gradually increase gradually from the inner end portion in the wheel radial direction toward the outer end portion in the wheel radial direction.
  • width A2 in the wheel circumferential direction of each 2nd spoke part 32 of the 2nd disc 30 is continuous toward a wheel radial direction outer side edge part from a wheel radial direction inner side edge part.
  • it may be constant in the wheel radial direction, or may gradually decrease gradually from the inner end portion in the wheel radial direction toward the outer end portion in the wheel radial direction.
  • the wheel radial direction tip portion of the ring portion 23 of the first disk 20 is joined to “the vehicle outer end portion (tip portion of the outer flange portion 15) of the rim 10”.
  • the wheel radial direction tip portion of the ring portion 23 is “the inner wall surface of the vehicle inner side portion (for example, the outer bead seat portion 14) of the rim 10”. It may be joined to.
  • the vehicle inner side surface of the inner portion in the wheel radial direction from the front end portion in the wheel radial direction of the ring portion 23” is “the vehicle outer end portion of the rim 10 (the vehicle of the outer bead seat portion 14. May be joined to the outer end)).
  • the tip portion 32b of each second spoke portion 32 of the second disk 30 is “the well portion 13 of the rim 10”. 11 and 12, the “tip 32 b of each second spoke portion 32 of the second disk 30” is joined to the “inner wall surface of the outer bead seat portion 14 of the rim 10”. May be joined.
  • the location (first location) where each tip 32b of the plurality of second spoke portions 32 and the rim 10 are joined is the location where the ring portion 23 of the first disk 20 and the rim 10 are joined. It is preferable that it is located inside the vehicle with respect to (second place).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

This wheel (100) further includes a second disc (30) in addition to a cylindrical rim (10) and a first disc (20). The first disc (20) includes a first hub part (21), a plurality of spoke parts (22), and a ring part (23) having an annular shape. The ring part (23) is joined to the rim (10). The second disc (30) includes a second hub part (31) and a plurality of spoke parts (32). The second hub part (31) is located on the outer side of a vehicle relative to the first hub part (21) so as to be coaxial with the first hub part (21). A wheel radial direction outer end (32b) of each of the second spoke parts (32) is joined to the rim (10) at a position between first spoke parts 22 adjacent to each other in a wheel circumferential direction. This makes it possible to increase the number of spoke parts of the wheel, as a whole, without increasing the number of spoke parts of each of the first and second discs (20, 30).

Description

自動車用ホイールAutomotive wheel
　本発明は、自動車用ホイールに関する。 The present invention relates to an automobile wheel.
　従来より、「円筒状のリム」と、「リムに接合されたディスク」と、からなる自動車用ホイールが広く知られている（例えば、欧州特許第１２６２３３３号明細書を参照）。この文献に記載のホイールでは、ディスクは、「ハブ部」と、「ハブ部からホイール径方向外側に延びる複数のスポーク部」と、「複数のスポーク部のそれぞれのホイール径方向外側の先端部と連結された円環状のリング部」と、を備える。このリング部がリムと接合されている。 Conventionally, an automobile wheel including a “cylindrical rim” and a “disk joined to the rim” is widely known (see, for example, European Patent No. 1262333). In the wheel described in this document, the disc includes a “hub portion”, “a plurality of spoke portions extending from the hub portion outward in the radial direction of the wheel”, and “a distal end portion of each of the plurality of spoke portions in the radial direction of the wheel” Connected annular ring portions ”. This ring part is joined to the rim.
　ところで、ホイールの剛性を高めるための方策の一つとして、複数のスポーク部の本数を増やしてディスクの剛性を高めることが考えられる。しかしながら、ディスクのスポークの本数が大きくなるほど、ディスクの形状が複雑になることによってディスクの製造が困難になる、という問題がある。 By the way, as one of the measures for increasing the rigidity of the wheel, it can be considered to increase the rigidity of the disk by increasing the number of the plurality of spoke portions. However, as the number of spokes on the disk increases, there is a problem that it becomes difficult to manufacture the disk due to the complexity of the disk shape.
　本発明は、上記問題に対処するためになされたものであり、その目的は、ディスクが製造し易く、且つ、剛性が高いホイールを提供することにある。 The present invention has been made to cope with the above problems, and an object of the present invention is to provide a wheel that is easy to manufacture a disk and has high rigidity.
　本発明に係る自動車用ホイール（１００）は、上記文献に記載のホイールと同様、「円筒状のリム（１０）」と、「第１ディスク（２０）」と、を備える。第１ディスク（２０）は、「第１ハブ部（２１）」と、「前記第１ハブ部（２１）からホイール径方向外側に延びる複数の第１スポーク部（２２）」と、「前記複数の第１スポーク部（２２）のそれぞれのホイール径方向外側の先端部と連結された円環状のリング部（２３）」と、を備える。前記リング部（２３）が前記リム（１０）に接合されている。 The automobile wheel (100) according to the present invention includes a “cylindrical rim (10)” and a “first disk (20)”, similarly to the wheel described in the above document. The first disk (20) includes a “first hub portion (21)”, “a plurality of first spoke portions (22) extending from the first hub portion (21) outward in the wheel radial direction”, Ring-shaped ring portion (23) connected to the front end portion of each of the first spoke portions (22) in the radial direction of the wheel. The ring portion (23) is joined to the rim (10).
　本発明に係るホイール（１００）の特徴は、「第１ディスク（２０）」に加えて「第２ディスク（３０）」を更に設けたことにある。第２ディスク（３０）は、「第２ハブ部（３１）」と、「前記第２ハブ部（３１）からホイール径方向外側に延びる複数の第２スポーク部（３２）」と、を備える。第２ディスク（３０）には、第１ディスク（２０）のリング部（２３）に対応する部分は設けられていない。換言すれば、第２ディスク（３０）単体では、各第２スポーク部（３２）のホイール径方向外側の先端部（３２ｂ）はそれぞれ「自由端」になっている。 A feature of the wheel (100) according to the present invention is that a “second disc (30)” is further provided in addition to the “first disc (20)”. The second disk (30) includes a “second hub portion (31)” and “a plurality of second spoke portions (32) extending from the second hub portion (31) outward in the wheel radial direction”. The second disk (30) is not provided with a portion corresponding to the ring part (23) of the first disk (20). In other words, in the second disk (30) alone, the distal end portion (32b) on the outer side in the wheel radial direction of each second spoke portion (32) is a “free end”.
　前記第２ハブ部（３１）は、前記第１ハブ部（２１）に対して同軸的且つ車両外側に位置している。前記複数の第２スポーク部（３２）のそれぞれのホイール径方向外側の先端部（３２ｂ）は、ホイール周方向における隣り合う前記第１スポーク部（２２）の間の位置にて前記リム（１０）と接合されている。 The second hub part (31) is coaxial with the first hub part (21) and is located outside the vehicle. Each of the plurality of second spoke portions (32) has a distal end portion (32b) on the outer side in the radial direction of the wheel at the position between the adjacent first spoke portions (22) in the wheel circumferential direction. It is joined with.
　本発明に係るホイールの構造では、リムに対して、第１ディスクのみならず、第２ディスクを設けたので、ホイール全体におけるスポーク部の本数の合計が、第１ディスクの複数の第１スポーク部の本数と、第２ディスクの複数の第２スポーク部の本数と、の和となる。換言すれば、第１、第２ディスクのそれぞれのスポーク部の本数を大きくすることなく、ホイール全体としてのスポーク部の本数を大きくすることができる。従って、第１、第２ディスクのそれぞれが製造し易く、且つ、剛性が高いホイールを提供することができる。 In the wheel structure according to the present invention, since not only the first disk but also the second disk is provided for the rim, the total number of spoke portions in the entire wheel is equal to the plurality of first spoke portions of the first disk. And the number of the plurality of second spoke portions of the second disk. In other words, it is possible to increase the number of spoke portions of the entire wheel without increasing the number of spoke portions of the first and second disks. Therefore, it is possible to provide a wheel that is easy to manufacture and has high rigidity for each of the first and second disks.
　本発明に係るホイール（１００）では、前記複数の第２スポーク部（３２）のそれぞれが、前記第２ハブ部（３１）から、隣り合う前記第１スポーク部（２２）の間に形成された開口（Ｗ）を車両外側から車両内側に向けて通るように延び、前記複数の第２スポーク部のそれぞれの前記先端部（３２ｂ）と前記リム（１０）とが接合される箇所（以下、「第１箇所」と呼ぶ）が、前記第１ディスクのリング部（２３）と前記リム（１０）とが接合される箇所（以下、「第２箇所」と呼ぶ）に対して、車両内側に位置するように構成されることが好適である。 In the wheel (100) according to the present invention, each of the plurality of second spoke portions (32) is formed between the second spoke portion (31) and the adjacent first spoke portion (22). It extends so as to pass through the opening (W) from the outside of the vehicle toward the inside of the vehicle, and the tip (32b) and the rim (10) of each of the plurality of second spoke portions are joined together (hereinafter referred to as “ Is referred to as the “first location”) relative to the location where the ring portion (23) of the first disk and the rim (10) are joined (hereinafter referred to as the “second location”). It is suitable to be configured.
　この構造では、「第１箇所」が「第２か所」に対してホイール軸方向において同じ位置にある構造と比べて、リムがスポークによって支持されるホイール軸方向における箇所の個数を増やすことができる。即ち、所謂トラス構造に近い構造が得られる。従って、リムの剛性（従って、ホイール全体の剛性）をより一層高めることができる。 In this structure, the number of locations in the wheel axis direction in which the rim is supported by the spokes can be increased compared to the structure in which the “first location” is in the same position in the wheel axis direction with respect to the “second location”. it can. That is, a structure close to a so-called truss structure can be obtained. Therefore, the rigidity of the rim (and hence the rigidity of the entire wheel) can be further increased.
　加えて、この構造では、各第２スポーク部が、車両外側から車両内側に向けて対応する「隣り合う第１スポーク部間に形成された開口」にそれぞれ入り込んでいく。換言すれば、ホイール周方向において隣り合う第１、第２スポーク部が、ホイール軸方向について交差する。従って、ホイールの外観に更に躍動感を与えることができ、美観向上の観点からホイールの価値を更に高めることができる。 In addition, in this structure, each second spoke part enters the corresponding “opening formed between adjacent first spoke parts” from the outside of the vehicle toward the inside of the vehicle. In other words, the first and second spoke portions adjacent in the wheel circumferential direction intersect in the wheel axial direction. Therefore, a dynamic feeling can be given to the appearance of the wheel, and the value of the wheel can be further increased from the viewpoint of improving the aesthetic appearance.
　また、本発明に係るホイール（１００）では、ホイール周方向において隣り合う前記第１スポーク部（２２）及び前記第２スポーク部（３２）の一部同士がホイール軸方向において対向するように構成されることが好適である。即ち、ホイール周方向において隣り合う前記第１スポーク部（２２）と前記第２スポーク部（３２）とにおいて、ホイール軸に沿った車両外側から自動車用ホイール（１００）をみた際に、前記第１スポーク部（２２）と前記第２スポーク部（３２）とが重なる領域（後述する図８の領域Ｅを参照）を有している。 Further, the wheel (100) according to the present invention is configured such that parts of the first spoke part (22) and the second spoke part (32) that are adjacent in the wheel circumferential direction face each other in the wheel axial direction. Is preferable. That is, when the automobile wheel (100) is viewed from the outside of the vehicle along the wheel axis, the first spoke portion (22) and the second spoke portion (32) that are adjacent in the wheel circumferential direction have the first The spoke portion (22) and the second spoke portion (32) have a region where the spoke portion (22) overlaps (see region E in FIG. 8 described later).
　この構造では、ホイール周方向において隣り合う第１スポーク部と第２スポーク部とが、ホイール周方向において交差するように構成される。このため、第１スポーク部と第２スポーク部とにより所謂トラス構造に近い構造が得られる。この結果、ホイール全体の剛性を高めることができる。また、ホイールの外観に更に躍動感を与えることができ、美観向上の観点からホイールの価値を更に高めることができる。 In this structure, the first spoke portion and the second spoke portion adjacent in the wheel circumferential direction are configured to intersect in the wheel circumferential direction. For this reason, a structure close to a so-called truss structure is obtained by the first spoke part and the second spoke part. As a result, the rigidity of the entire wheel can be increased. In addition, the appearance of the wheel can be further enhanced, and the value of the wheel can be further increased from the viewpoint of improving the aesthetics.
　また、本発明に係るホイール（１００）では、前記第１スポーク部（２２）と前記第２スポーク部（３２）とが非接触で配置されるように構成されることがより好適である。 In the wheel (100) according to the present invention, it is more preferable that the first spoke part (22) and the second spoke part (32) are arranged in a non-contact manner.
　これによれば、第１スポーク部と第２スポーク部とが、それぞれ独立してリムからの応力を受けることになる。このため、第１スポーク部と第２スポーク部とにより所謂トラス構造に近い構造が得られる。この結果、ホイール全体の剛性を高めることができる。また、ホイールの外観に更に躍動感を与えることができ、美観向上の観点からホイールの価値を更に高めることができる。 According to this, the first spoke part and the second spoke part receive the stress from the rim independently of each other. For this reason, a structure close to a so-called truss structure is obtained by the first spoke part and the second spoke part. As a result, the rigidity of the entire wheel can be increased. In addition, the appearance of the wheel can be further enhanced, and the value of the wheel can be further increased from the viewpoint of improving the aesthetics.
　また、本発明に係るホイール（１００）では、前記第２ディスク（３０）の前記各第２スポーク部（３２）のホイール周方向における幅が、ホイール径方向内側端部からホイール径方向外側端部に向けて徐々に広がるように構成されることが好適である。 Further, in the wheel (100) according to the present invention, the width in the wheel circumferential direction of each of the second spoke portions (32) of the second disk (30) is from the wheel radial direction inner end portion to the wheel radial direction outer end portion. It is preferable to be configured to gradually spread toward
　この構造では、各第２スポーク部の先端部とリムとの接合箇所のホイール周方向における幅を大きくすることができる。従って、各第２スポーク部の先端部とリムとの接合強度を大きくすることができ、この結果、ホイール全体の剛性をより一層高めることができる。 In this structure, it is possible to increase the width in the wheel circumferential direction of the joint portion between the tip portion of each second spoke portion and the rim. Therefore, it is possible to increase the bonding strength between the tip portion of each second spoke portion and the rim, and as a result, it is possible to further increase the rigidity of the entire wheel.
図１は、本発明の実施形態に係る自動車用ホイールを車両外側からみた斜視図である。FIG. 1 is a perspective view of an automobile wheel according to an embodiment of the present invention as seen from the outside of the vehicle. 図２は、図１に示すホイールの分解斜視図（組み付け前の状態を示す図）である。FIG. 2 is an exploded perspective view of the wheel shown in FIG. 1 (showing a state before assembly). 図３は、図１に示すホイールについて、リムに対して第１ディスクのみが組み付けられ且つ第２ディスクが組み付けられる前の状態を示す図である。FIG. 3 is a view showing a state of the wheel shown in FIG. 1 in which only the first disk is assembled to the rim and before the second disk is assembled. 図４は、図１に示すホイールをホイール軸方向且つ車両外側からみた図である。FIG. 4 is a view of the wheel shown in FIG. 1 as viewed from the wheel axial direction and from the outside of the vehicle. 図５は、図４に示すホイールのＡ－Ａ線についての断面構造を示す図である。FIG. 5 is a diagram showing a cross-sectional structure taken along line AA of the wheel shown in FIG. 図６は、図２に示す第１ディスク単体をホイール軸方向且つ車両外側からみた図である。FIG. 6 is a diagram of the first disk shown in FIG. 2 as viewed from the wheel axial direction and from the outside of the vehicle. 図７は、図２に示す第２ディスク単体をホイール軸方向且つ車両外側からみた図である。FIG. 7 is a view of the second disk alone shown in FIG. 2 as viewed from the wheel axial direction and from the outside of the vehicle. 図８は、ホイール軸に沿った車両外側から自動車用ホイールをみた際に、第１、第２スポーク部が重なる領域を示す図である。FIG. 8 is a diagram illustrating a region where the first and second spoke portions overlap when the automobile wheel is viewed from the vehicle outer side along the wheel axis. 本発明の実施形態の第１の変形例についての図５に対応する図である。It is a figure corresponding to Drawing 5 about the 1st modification of an embodiment of the present invention. 本発明の実施形態の第２の変形例についての図５に対応する図である。It is a figure corresponding to FIG. 5 about the 2nd modification of embodiment of this invention. 本発明の実施形態の第３の変形例についての図５に対応する図である。It is a figure corresponding to FIG. 5 about the 3rd modification of embodiment of this invention. 本発明の実施形態の第４の変形例についての図５に対応する図である。It is a figure corresponding to FIG. 5 about the 4th modification of embodiment of this invention.
　以下、本発明の実施形態に係る自動車用ホイール１００（以下、単に「ホイール」ともいう）について図面を参照しながら説明する。なお、以下、「車両内側（外側）」とは、ホイール１００を車両に装着した状態にてホイール軸方向における車両の内側（外側）を意味する。 Hereinafter, an automotive wheel 100 (hereinafter also simply referred to as “wheel”) according to an embodiment of the present invention will be described with reference to the drawings. Hereinafter, “vehicle inner side (outer side)” means the inner side (outer side) of the vehicle in the wheel axis direction in a state where the wheel 100 is mounted on the vehicle.
（ホイール１００の構成）
　図１～図３に示すように、ホイール１００は、円環状のタイヤ（図示せず）が取り付けられるリム１０と、第１ディスク２０と、第２ディスク３０と、を備える。リム１０、第１ディスク２０、及び、第２ディスク３０のそれぞれは、典型的にはスチール製であるが、アルミ合金製、チタン合金製、マグネシウム合金製等であってもよい。それぞれの材質は、同じであっても異なっていてもよい。 (Configuration of wheel 100)
As shown in FIGS. 1 to 3, the wheel 100 includes a rim 10 to which an annular tire (not shown) is attached, a first disk 20, and a second disk 30. Each of the rim 10, the first disk 20, and the second disk 30 is typically made of steel, but may be made of an aluminum alloy, a titanium alloy, a magnesium alloy, or the like. Each material may be the same or different.
　図２及び図３に示すように、ホイール１００は、リム１０に、車両外側から第１ディスク２０が組み付けられ、リム及び第１ディスク２０からなるサブアッセンブリに、車両外側から第２ディスク３０が組み付けられることによって、完成する。なお、図１に示すホイール１００では、第２ディスク３０に、車両外側からセンターキャップ５０（図２及び図３には示されていない）が組み付けられている。 As shown in FIGS. 2 and 3, in the wheel 100, the first disk 20 is assembled to the rim 10 from the outside of the vehicle, and the second disk 30 is assembled to the subassembly including the rim and the first disk 20 from the outside of the vehicle. To be completed. In the wheel 100 shown in FIG. 1, a center cap 50 (not shown in FIGS. 2 and 3) is assembled to the second disk 30 from the outside of the vehicle.
（リム１０単体の構成）
　図４及び図５に示すように、円筒状を呈するリム１０は、車両内側から車両外側に向けて順に、内側フランジ部１１、内側ビードシート部１２、ウエル部１３、外側ビードシート部１４、及び、外側フランジ部１５を備える。ウエル部１３は、内側・外側ビードシート部１２、１４に対してホイール径方向内側に向けて円環状に窪んだ部分である。リム１０は、典型的には、円筒状の素材に対してロール成形等を施すことによって一体成形され得る。 (Configuration of rim 10 alone)
As shown in FIGS. 4 and 5, the rim 10 having a cylindrical shape includes an inner flange portion 11, an inner bead seat portion 12, a well portion 13, an outer bead seat portion 14, and the like in order from the vehicle inner side to the vehicle outer side. The outer flange portion 15 is provided. The well portion 13 is a portion recessed in an annular shape toward the inner side in the wheel radial direction with respect to the inner and outer bead sheet portions 12 and 14. Typically, the rim 10 can be integrally formed by performing roll forming or the like on a cylindrical material.
（第１ディスク２０単体の構成）
　図５及び図６に示すように、第１ディスク２０は、第１ハブ部２１と、複数（本例では、５本の）第１スポーク部２２と、リング部２３と、を備える。第１ディスク２０の全体は、典型的には、板状の素材に対してプレス加工等を施すことによって一体成形され得る。 (Configuration of the first disk 20 alone)
As shown in FIGS. 5 and 6, the first disk 20 includes a first hub portion 21, a plurality (five in this example) of first spoke portions 22, and a ring portion 23. The entire first disk 20 can typically be integrally formed by subjecting a plate-shaped material to press working or the like.
　第１ハブ部２１は円盤状を呈する。第１ハブ部２１には、ホイール軸と同軸的にハブ穴２１ａが設けられ、ハブ穴２１ａの周囲には、ホイール周方向に等間隔にボルト穴２１ｂが複数（本例では、５つ）設けられている。 The first hub portion 21 has a disk shape. The first hub portion 21 is provided with a hub hole 21a coaxially with the wheel shaft, and a plurality of bolt holes 21b (five in this example) are provided around the hub hole 21a at equal intervals in the circumferential direction of the wheel. It has been.
　複数の第１スポーク部２２は、第１ハブ部２１から、ホイール周方向に等間隔に、車両外側に突出するように屈曲しながらホイール径方向外側に延びている。各第１スポーク部２２のホイール周方向における中央部には、ホイール径方向に延びる開口（スリット、貫通穴）２２ａが設けられている。開口２２ａが設けられているのは、ホイール１００の美観向上、及び、ホイール１００の軽量化のためである。なお、この開口２２ａは無くてもよい。図６から理解できるように、各第１スポーク部２２の幅Ａ１（ホイール径方向と直角方向の幅）は、ホイール径方向内側端部からホイール径方向外側端部に向けて連続して徐々に小さくなっている。 The plurality of first spoke portions 22 extend outward in the radial direction of the wheel from the first hub portion 21 while being bent so as to protrude outward of the vehicle at equal intervals in the circumferential direction of the wheel. An opening (slit, through hole) 22a extending in the wheel radial direction is provided at the center of each first spoke portion 22 in the wheel circumferential direction. The opening 22 a is provided to improve the aesthetic appearance of the wheel 100 and to reduce the weight of the wheel 100. The opening 22a may not be provided. As can be understood from FIG. 6, the width A1 (width in the direction perpendicular to the wheel radial direction) of each first spoke portion 22 is gradually and gradually increased from the wheel radial direction inner end to the wheel radial direction outer end. It is getting smaller.
　リング部２３は、円環状を呈し、ホイール軸と同軸的に配置されている。リング部２３は、各第１スポーク部２２のホイール径方向外側端部と一体に連結されている。この結果、図６に示すように、ホイール周方向に隣り合う第１スポーク部２２の間に、それぞれ、隣り合う第１スポーク部２２とリング部２３とによって画定される窓（飾り穴、貫通穴）Ｗが形成されている。 The ring portion 23 has an annular shape and is arranged coaxially with the wheel shaft. The ring portion 23 is integrally connected to the outer end portion in the wheel radial direction of each first spoke portion 22. As a result, as shown in FIG. 6, between the first spoke portions 22 adjacent in the wheel circumferential direction, windows defined by the adjacent first spoke portions 22 and the ring portions 23 (decorative holes, through holes), respectively. ) W is formed.
　図５から理解できるように、本例では、リム１０に、車両外側から第１ディスク２０を組み付け、リング部２３のホイール径方向の先端部をリム１０の車両外側端部（具体的には、外側フランジ部１５の先端部）に溶接等によって接合することによって、第１ディスク２０がリム１０に固定されている。 As can be understood from FIG. 5, in this example, the first disk 20 is assembled to the rim 10 from the outside of the vehicle, and the tip of the ring portion 23 in the wheel radial direction is connected to the vehicle outer end of the rim 10 (specifically, The first disk 20 is fixed to the rim 10 by being joined to the outer flange portion 15 by welding or the like.
（第２ディスク３０単体の構成）
　図５及び図７に示すように、第２ディスク３０は、第２ハブ部３１と、複数（本例では、５本の）第２スポーク部３２と、を備える。第２ディスク３０では、第１ディスク２０のリング部２２に相当する部分が備えられていない。従って、図７に示すように、第２ディスク３０単体では、各第２スポーク部３２のホイール径方向外側の先端部３２ｂはそれぞれ「自由端」になっている。第２ディスク３０の全体は、典型的には、板状の素材に対してプレス加工等を施すことによって一体成形され得る。 (Configuration of the second disk 30 alone)
As shown in FIGS. 5 and 7, the second disk 30 includes a second hub portion 31 and a plurality (five in this example) of second spoke portions 32. The second disk 30 is not provided with a portion corresponding to the ring portion 22 of the first disk 20. Therefore, as shown in FIG. 7, in the second disk 30 alone, the distal end portions 32 b of the second spoke portions 32 on the outer side in the wheel radial direction are “free ends”. The entire second disk 30 can typically be integrally formed by subjecting a plate-shaped material to press working or the like.
　第２ハブ部３１はヒトデ形を呈し、第２ハブ部３１には、ホイール軸と同軸的にハブ穴３１ａが設けられ、ハブ穴３１ａの周囲には、ホイール周方向に等間隔にボルト穴３１ｂが複数（本例では、５つ）設けられている。ボルト穴３１ｂのピッチ径は、ボルト穴２１ｂのピッチ径と同じである。 The second hub portion 31 has a starfish shape, and the second hub portion 31 is provided with a hub hole 31a coaxially with the wheel shaft, and around the hub hole 31a, bolt holes 31b are equally spaced in the circumferential direction of the wheel. Are provided (five in this example). The pitch diameter of the bolt holes 31b is the same as the pitch diameter of the bolt holes 21b.
　複数の第２スポーク部３２は、第２ハブ部３１から、ホイール周方向に等間隔に、車両外側に突出するように屈曲しながらホイール径方向外側に延び、更に、それぞれの先端部３２ｂは、車両内側に向けて屈曲している。各第２スポーク部３２のホイール周方向における中央部には、ホイール径方向に延びる開口（スリット、貫通穴）３２ａが設けられている。開口３２ａが設けられているのは、ホイール１００の美観向上、及び、ホイール１００の軽量化のためである。なお、この開口３２ａは無くてもよい。図７から理解できるように、各第２スポーク部３２の幅Ａ２（ホイール径方向と直角方向の幅）は、ホイール径方向内側端部からホイール径方向外側端部に向けて連続して徐々に大きくなっている。 The plurality of second spoke portions 32 extend from the second hub portion 31 to the outer side in the wheel radial direction while being bent so as to protrude outward from the vehicle at equal intervals in the circumferential direction of the wheel. Bending toward the inside of the vehicle. An opening (slit, through hole) 32a extending in the wheel radial direction is provided at the center of each second spoke portion 32 in the wheel circumferential direction. The opening 32 a is provided to improve the aesthetic appearance of the wheel 100 and reduce the weight of the wheel 100. The opening 32a may not be provided. As can be understood from FIG. 7, the width A <b> 2 (width in the direction perpendicular to the wheel radial direction) of each second spoke portion 32 is gradually and gradually increased from the wheel radial direction inner end toward the wheel radial direction outer end. It is getting bigger.
（リム１０、第１ディスク２０、及び第２ディスク３０の配置関係）
　図４及び図５等から理解できるように、本例では、リム及び第１ディスク２０からなるサブアッセンブリに、車両外側から、各第２スポーク部３２の先端部３２ｂ（車両内側に向けて屈曲している部分）を第１ディスク２０の対応する開口Ｗを貫通するように組み付け、各第２スポーク部３２の先端部３２ｂの車両内側端部をリム１０のホイール軸方向の中央部（具体的には、ウエル部１３）の内壁面に溶接等によって接合することによって、第２ディスク３０がリム１０に固定されている。本例では、各先端部３２ｂとリム１０との接合箇所は、ホイール軸方向において同じである。 (Disposition relationship between the rim 10, the first disk 20, and the second disk 30)
As can be understood from FIGS. 4 and 5 and the like, in this example, the sub-assembly including the rim and the first disk 20 is bent from the vehicle outer side to the tip end portion 32b of each second spoke portion 32 (bent toward the vehicle inner side). Are assembled so as to pass through the corresponding openings W of the first disc 20, and the vehicle inner end of the tip 32 b of each second spoke 32 is the center of the rim 10 in the wheel axial direction (specifically, The second disk 30 is fixed to the rim 10 by being joined to the inner wall surface of the well portion 13) by welding or the like. In this example, the joint location between each tip 32b and the rim 10 is the same in the wheel axial direction.
　従って、図５から理解できるように、各第２スポーク部３２の先端部３２ｂとリム１０とが接合される箇所は、第１ディスク２０のリング部２３とリム１０とが接合される箇所に対して、車両内側に位置している。 Therefore, as can be understood from FIG. 5, the portion where the tip portion 32 b of each second spoke portion 32 and the rim 10 are joined to the portion where the ring portion 23 of the first disk 20 and the rim 10 are joined. It is located inside the vehicle.
　また、ホイール周方向において隣り合う第１スポーク２２及び第２スポーク部３２の一部同士がホイール軸方向において対向するように構成されている。即ち、ホイール周方向において隣り合う第１スポーク部２２と第２スポーク部３２とにおいて、ホイール軸に沿った車両外側から自動車用ホイール１００をみた際に、第１スポーク部２２と第２スポーク部３２とが重なる（交差する）領域Ｅ（図８にて斜線で示した領域を参照）を有している。本例では、ホイール周方向において隣り合う第１スポーク２２及び第２スポーク部３２の一部同士がホイール軸方向において対向する領域（即ち、領域Ｅ）では、第１スポーク部２２が第２スポーク部３２に対して、車両内側に位置するように構成されている。加えて、第１スポーク部２２と第２スポーク部３２とは非接触で配置されるように構成されている。 Further, the first spoke 22 and the second spoke portion 32 that are adjacent in the wheel circumferential direction are configured to face each other in the wheel axial direction. That is, in the first spoke portion 22 and the second spoke portion 32 that are adjacent to each other in the wheel circumferential direction, the first spoke portion 22 and the second spoke portion 32 when the automobile wheel 100 is viewed from the outside of the vehicle along the wheel axis. Has an area E (refer to the area shown by hatching in FIG. 8). In this example, in a region where a part of the first spoke 22 and the second spoke portion 32 adjacent in the wheel circumferential direction oppose each other in the wheel axial direction (that is, the region E), the first spoke portion 22 is the second spoke portion. 32 is configured to be located inside the vehicle. In addition, the first spoke portion 22 and the second spoke portion 32 are configured to be arranged in a non-contact manner.
　このように、第２ディスク３０がリム１０に固定された状態では、図５から理解できるように、第２ディスク３０の第２ハブ部３１が第１ディスク２０の第１ハブ部２１に対して同軸的且つ車両外側に位置するとともに、第２ハブ部３１が第１ハブ部２１と接触している。第１、第２ハブ部２１、３１は、リベットなどの接合部材を用いることによって互いに固定されてもよいし、固定されていなくてもよい。 Thus, in the state where the second disk 30 is fixed to the rim 10, as can be understood from FIG. 5, the second hub portion 31 of the second disk 30 is relative to the first hub portion 21 of the first disk 20. The second hub portion 31 is in contact with the first hub portion 21 while being coaxial and located outside the vehicle. The 1st, 2nd hub parts 21 and 31 may be mutually fixed by using joining members, such as a rivet, and do not need to be fixed.
　加えて、第２ディスク３０がリム１０に固定された状態では、図４から理解できるように、複数の第２スポーク部３２のそれぞれの先端部３２ｂが、ホイール周方向における隣り合う第１スポーク部２２の間の位置にてリム１０と接合されている。 In addition, in a state where the second disk 30 is fixed to the rim 10, as can be understood from FIG. 4, the tip portions 32b of the plurality of second spoke portions 32 are adjacent to each other in the wheel circumferential direction. It is joined to the rim 10 at a position between 22.
　更には、第２ディスク３０がリム１０に固定された状態では、第２ハブ部３１の各ボルト穴３１ｂと第１ハブ部２１の対応するボルト穴２１ｂとのホイール周方向の位相がそれぞれ合致している。従って、対応するボルト穴２１ｂ、３１ｂ同士によって構成される１つの貫通穴が、ホイール周方向に等間隔に、それぞれ形成されている。 Furthermore, in the state where the second disk 30 is fixed to the rim 10, the wheel circumferential direction phases of the respective bolt holes 31 b of the second hub portion 31 and the corresponding bolt holes 21 b of the first hub portion 21 coincide with each other. ing. Accordingly, one through hole constituted by the corresponding bolt holes 21b and 31b is formed at equal intervals in the wheel circumferential direction.
　従って、ハブＨ（図５を参照）から車両外側に突出する複数のハブボルト（図示せず）を前記貫通穴にそれぞれ挿通し、各ハブボルトにハブナット（図示せず）を螺合することによって、第１、第２ディスク２０、３０（従って、ホイール１００全体）がハブＨに固定される（図５を参照）。 Therefore, by inserting a plurality of hub bolts (not shown) protruding from the hub H (see FIG. 5) into the through holes and screwing hub nuts (not shown) to the hub bolts, 1. The second disks 20 and 30 (therefore, the entire wheel 100) are fixed to the hub H (see FIG. 5).
（作用・効果）
　以下、本発明の実施形態に係るホイール１００の作用・効果について述べる。 (Action / Effect)
Hereinafter, the operation and effect of the wheel 100 according to the embodiment of the present invention will be described.
（１）この構造では、リム１０に対して、第１ディスク２０のみならず、第２ディスク３０が設けられている。従って、ホイール１００全体におけるスポーク部の本数の合計が、第１ディスク２０の複数の第１スポーク部２２の本数と、第２ディスク３０の複数の第２スポーク部３２の本数と、の和となる。換言すれば、第１、第２ディスク２０、３０のそれぞれのスポーク部の本数を大きくすることなく、ホイール１００全体としてのスポーク部の本数を大きくすることができる。従って、第１、第２ディスク２０、３０のそれぞれが製造し易く、且つ、剛性が高いホイール１００を提供することができる。 (1) In this structure, not only the first disk 20 but also the second disk 30 is provided for the rim 10. Therefore, the total number of the spoke portions in the entire wheel 100 is the sum of the number of the first spoke portions 22 of the first disk 20 and the number of the second spoke portions 32 of the second disk 30. . In other words, the number of spoke portions of the wheel 100 as a whole can be increased without increasing the number of spoke portions of the first and second disks 20 and 30. Accordingly, it is possible to provide the wheel 100 that is easy to manufacture and has high rigidity for each of the first and second disks 20 and 30.
（２）この構造では、図５から理解できるように、複数の第２スポーク部３２のそれぞれの先端部３２ｂとリム１０とが接合される箇所（第１箇所）が、第１ディスク２０のリング部２３とリム１０とが接合される箇所（第２箇所）に対して、車両内側に位置している。従って、「第１箇所」及び「第２か所」がホイール軸方向において同じ位置にある構造と比べて、リム１０がスポークによって支持されるホイール軸方向における箇所の個数を増やすことができる。即ち、所謂トラス構造に近い構造が得られる。従って、リム１０の剛性（従って、ホイール１００全体の剛性）をより一層高めることができる。 (2) In this structure, as can be understood from FIG. 5, a location (first location) where each tip portion 32 b of the plurality of second spoke portions 32 and the rim 10 are joined is a ring of the first disk 20. The part 23 and the rim 10 are located on the vehicle inner side with respect to the part (second part) where the part 23 and the rim 10 are joined. Therefore, the number of locations in the wheel axis direction where the rim 10 is supported by the spokes can be increased as compared with the structure in which the “first location” and the “second location” are in the same position in the wheel axis direction. That is, a structure close to a so-called truss structure can be obtained. Therefore, the rigidity of the rim 10 (therefore, the rigidity of the entire wheel 100) can be further increased.
（３）この構造では、図５から理解できるように、各第２スポーク部３２の先端部３２ｂが、車両外側から車両内側に向けて対応する開口Ｗにそれぞれ入り込んでいく。換言すれば、ホイール周方向において隣り合う第１、第２スポーク部２２、３２が、ホイール軸方向について交差する。従って、ホイール１００の外観に更に躍動感を与えることができ、美観向上の観点からホイール１００の価値を更に高めることができる。 (3) In this structure, as can be understood from FIG. 5, the leading end portion 32 b of each second spoke portion 32 enters the corresponding opening W from the outside of the vehicle toward the inside of the vehicle. In other words, the first and second spoke portions 22 and 32 adjacent in the wheel circumferential direction intersect with each other in the wheel axial direction. Therefore, a dynamic feeling can be given to the appearance of the wheel 100, and the value of the wheel 100 can be further increased from the viewpoint of improving aesthetics.
（４）この構成では、図１、図４、及び図８から理解できるように、ホイール周方向において隣り合う第１スポーク２２及び第２スポーク部３２の一部同士がホイール軸方向において対向するように構成されている。従って、周方向において隣り合う第１スポーク部２２と第２スポーク部３２とは、ホイール軸方向において交差するばかりでなく、ホイール周方向においても交差するように構成されている。このため、第１スポーク部２２と第２スポーク部３２とにより、所謂トラス構造に近い構造が得られる。この結果、ホイール１００全体の剛性を高めることができる。また、ホイール１００の外観に更に躍動感を与えることができ、美観向上の観点からホイールの価値を更に高めることができる。 (4) In this configuration, as can be understood from FIGS. 1, 4, and 8, the first spoke 22 and the second spoke portion 32 that are adjacent in the wheel circumferential direction are opposed to each other in the wheel axial direction. It is configured. Therefore, the 1st spoke part 22 and the 2nd spoke part 32 which adjoin in the circumferential direction not only cross | intersect in a wheel axial direction, but are comprised so that it may also cross | intersect in a wheel circumferential direction. For this reason, the first spoke portion 22 and the second spoke portion 32 provide a structure close to a so-called truss structure. As a result, the rigidity of the entire wheel 100 can be increased. In addition, the appearance of the wheel 100 can be further enhanced, and the value of the wheel can be further increased from the viewpoint of improving the aesthetics.
（５）この構成では、第１スポーク部２２と第２スポーク部３２とは非接触で配置されるように構成されている。従って、第１スポーク部２２と第２スポーク部３２とは、それぞれ独立してリム１０からの応力を受けることになる。このため、第１スポーク部２２と第２スポーク部３２とにより、所謂トラス構造に近い構造が得られる。この結果、ホイール１００全体の剛性を高めることができる。また、ホイール１００の外観に更に躍動感を与えることができ、美観向上の観点からホイール１００の価値を更に高めることができる。 (5) In this structure, the 1st spoke part 22 and the 2nd spoke part 32 are comprised so that it may be arrange | positioned non-contactingly. Accordingly, the first spoke portion 22 and the second spoke portion 32 receive stress from the rim 10 independently of each other. For this reason, the first spoke portion 22 and the second spoke portion 32 provide a structure close to a so-called truss structure. As a result, the rigidity of the entire wheel 100 can be increased. Moreover, a dynamic feeling can be given to the external appearance of the wheel 100, and the value of the wheel 100 can be further enhanced from the viewpoint of improving aesthetics.
（６）この構造では、図４及び図７から理解できるように、第２ディスク３０の各第２スポーク部３２のホイール周方向における幅Ａ１（図６を参照）が、ホイール径方向内側端部からホイール径方向外側端部に向けて連続的に徐々に広がっている。このため、各第２スポーク部３２の先端部３２ｂとリム１０との接合箇所のホイール周方向における幅を大きくすることができる。従って、各第２スポーク部３２の先端部３２ｂとリム１０との接合強度を大きくすることができ、この結果、ホイール１００全体の剛性をより一層高めることができる。 (6) In this structure, as can be understood from FIGS. 4 and 7, the width A1 (see FIG. 6) in the wheel circumferential direction of each second spoke portion 32 of the second disk 30 is the inner end in the wheel radial direction. From the wheel to the outer end in the radial direction of the wheel. For this reason, the width | variety in the wheel circumferential direction of the junction location of the front-end | tip part 32b of each 2nd spoke part 32 and the rim | limb 10 can be enlarged. Therefore, it is possible to increase the bonding strength between the tip 32b of each second spoke portion 32 and the rim 10, and as a result, it is possible to further increase the rigidity of the wheel 100 as a whole.
　本発明は、上記実施形態に限定されるものではなく、本発明の目的を逸脱しない限りにおいて種々の応用や変形が考えられる。例えば、上記実施の形態を応用した次の各形態を実施することもできる。 The present invention is not limited to the above-described embodiment, and various applications and modifications can be considered without departing from the object of the present invention. For example, each of the following embodiments to which the above embodiment is applied can be implemented.
　上記実施形態では、第２ディスク３０の第２スポーク部３２の本数（本例では、５本）が、第１ディスク２０の第１スポーク部２２の本数（本例では、５本）と同じであったが、第１スポーク部２２の本数より少なくてもよい（例えば、３本）。 In the above embodiment, the number of the second spoke portions 32 of the second disk 30 (5 in this example) is the same as the number of the first spoke portions 22 of the first disk 20 (5 in this example). However, the number may be smaller than the number of the first spoke portions 22 (for example, three).
　また、上記実施形態では、複数の第２スポーク部３２のそれぞれの先端部３２ｂとリム１０とが接合される箇所（第１箇所）が、第１ディスク２０のリング部２３とリム１０とが接合される箇所（第２箇所）に対して、車両内側に位置しているが（図５を参照）、「第１箇所」及び「第２か所」がホイール軸方向において同じ位置にあってもよいし、「第１箇所」が「第２箇所」に対して車両外側に位置していてもよい。 Moreover, in the said embodiment, the location (1st location) where each front-end | tip part 32b of the some 2nd spoke part 32 and the rim | limb 10 are joined is the ring part 23 of the 1st disc 20, and the rim | limb 10 joining. Although it is located on the inner side of the vehicle with respect to the place (second place) (see FIG. 5), even if the “first place” and the “second place” are at the same position in the wheel axis direction Alternatively, the “first place” may be located outside the vehicle with respect to the “second place”.
　また、上記実施形態では、複数の第２スポーク部３２のそれぞれの先端部３２ｂとリム１０とが接合される箇所が、ホイール軸方向において同じであるが、異なっていてもよい。これにより、リム１０がスポークによって支持されるホイール軸方向における箇所の個数をより一層増やすことができ、リム１０の剛性（従って、ホイール１００全体の剛性）をより一層高めることができる。 Moreover, in the said embodiment, although the location where each front-end | tip part 32b of the some 2nd spoke part 32 and the rim | limb 10 are joined is the same in a wheel axial direction, it may differ. Thereby, the number of locations in the wheel axial direction where the rim 10 is supported by the spokes can be further increased, and the rigidity of the rim 10 (and hence the rigidity of the entire wheel 100) can be further increased.
　また、上記実施形態では、ホイール周方向において隣り合う第１スポーク２２及び第２スポーク部３２の一部同士がホイール軸方向において対向する領域（即ち、領域Ｅ）では、第１スポーク部２２が第２スポーク部３２に対して、車両内側に位置するように構成されているが、領域Ｅにおいて、第２スポーク部３２が第１スポーク２２に対して、車両内側に位置するようにホイール１００を構成してもよい。 Moreover, in the said embodiment, in the area | region (namely, area | region E) where some of the 1st spoke 22 and the 2nd spoke part 32 which adjoin in the wheel circumferential direction oppose in a wheel axial direction, the 1st spoke part 22 is 1st. The wheel 100 is configured so as to be positioned inside the vehicle with respect to the two-spoke part 32, but in the region E, the wheel 100 is configured so that the second spoke part 32 is positioned inside the vehicle with respect to the first spoke 22. May be.
　また、上記実施形態では、ホイール周方向において隣り合う第１スポーク２２及び第２スポーク部３２の一部同士がホイール軸方向において対向するように構成されているが、ホイール周方向において隣り合う第１スポーク２２及び第２スポーク部３２がホイール軸方向において対向しないように構成されてもよい。 Moreover, in the said embodiment, although it comprises so that some of the 1st spoke 22 and the 2nd spoke part 32 which adjoin in the wheel circumferential direction may oppose in a wheel axial direction, the 1st adjacent in a wheel circumferential direction is comprised. The spoke 22 and the second spoke portion 32 may be configured not to face each other in the wheel axial direction.
　また、上記実施形態では、第１スポーク部２２と第２スポーク部３２とが非接触で配置されるように構成されているが、第１スポーク部２２の一部が第２スポーク部３２の一部と接触するように構成されてもよい。 Further, in the above embodiment, the first spoke portion 22 and the second spoke portion 32 are configured to be arranged in a non-contact manner, but a part of the first spoke portion 22 is a part of the second spoke portion 32. You may comprise so that a part may be contacted.
　また、上記実施形態では、第１ディスク２０の各第１スポーク部２２のホイール周方向における幅Ａ１（図６を参照）が、ホイール径方向内側端部からホイール径方向外側端部に向けて連続的に徐々に小さくなっているが、ホイール径方向において一定であってもよいし、ホイール径方向内側端部からホイール径方向外側端部に向けて連続的に徐々に大きくなっていてもよい。 Moreover, in the said embodiment, width A1 (refer FIG. 6) in the wheel circumferential direction of each 1st spoke part 22 of the 1st disc 20 continues toward a wheel radial direction outer side edge part from a wheel radial direction inner side edge part. However, it may be constant in the wheel radial direction, or may gradually increase gradually from the inner end portion in the wheel radial direction toward the outer end portion in the wheel radial direction.
　また、上記実施形態では、第２ディスク３０の各第２スポーク部３２のホイール周方向における幅Ａ２（図７を参照）が、ホイール径方向内側端部からホイール径方向外側端部に向けて連続的に徐々に大きくなっているが、ホイール径方向において一定であってもよいし、ホイール径方向内側端部からホイール径方向外側端部に向けて連続的に徐々に小さくなっていてもよい。 Moreover, in the said embodiment, width A2 (refer FIG. 7) in the wheel circumferential direction of each 2nd spoke part 32 of the 2nd disc 30 is continuous toward a wheel radial direction outer side edge part from a wheel radial direction inner side edge part. However, it may be constant in the wheel radial direction, or may gradually decrease gradually from the inner end portion in the wheel radial direction toward the outer end portion in the wheel radial direction.
　また、上記実施形態（図５を参照）では、「第１ディスク２０のリング部２３のホイール径方向先端部」が「リム１０の車両外側端部（外側フランジ部１５の先端部）」に接合されているが、図９に示すように、「リング部２３のホイール径方向先端部」が「リム１０の車両外側端部より車両内側の部分（例えば、外側ビードシート部１４）の内壁面」に接合されていてもよい。また、図１０及び図１１に示すように、「リング部２３のホイール径方向先端部よりホイール径方向内側部分の車両内側面」が「リム１０の車両外側端部（外側ビードシート部１４の車両外側端部）」に接合されていてもよい。 In the above embodiment (see FIG. 5), “the wheel radial direction tip portion of the ring portion 23 of the first disk 20” is joined to “the vehicle outer end portion (tip portion of the outer flange portion 15) of the rim 10”. However, as shown in FIG. 9, “the wheel radial direction tip portion of the ring portion 23” is “the inner wall surface of the vehicle inner side portion (for example, the outer bead seat portion 14) of the rim 10”. It may be joined to. Further, as shown in FIGS. 10 and 11, “the vehicle inner side surface of the inner portion in the wheel radial direction from the front end portion in the wheel radial direction of the ring portion 23” is “the vehicle outer end portion of the rim 10 (the vehicle of the outer bead seat portion 14. May be joined to the outer end)).
　また、上記実施形態（図５を参照）、並びに、図９及び図１０に示す態様では、「第２ディスク３０の各第２スポーク部３２の先端部３２ｂ」が「リム１０のウエル部１３の内壁面」に接合されているが、図１１及び図１２に示すように、「第２ディスク３０の各第２スポーク部３２の先端部３２ｂ」が「リム１０の外側ビードシート部１４の内壁面」に接合されていてもよい。何れにしろ、複数の第２スポーク部３２のそれぞれの先端部３２ｂとリム１０とが接合される箇所（第１箇所）が、第１ディスク２０のリング部２３とリム１０とが接合される箇所（第２箇所）に対して、車両内側に位置していることが好適である。 Further, in the above-described embodiment (see FIG. 5) and the modes shown in FIGS. 9 and 10, “the tip portion 32b of each second spoke portion 32 of the second disk 30” is “the well portion 13 of the rim 10”. 11 and 12, the “tip 32 b of each second spoke portion 32 of the second disk 30” is joined to the “inner wall surface of the outer bead seat portion 14 of the rim 10”. May be joined. In any case, the location (first location) where each tip 32b of the plurality of second spoke portions 32 and the rim 10 are joined is the location where the ring portion 23 of the first disk 20 and the rim 10 are joined. It is preferable that it is located inside the vehicle with respect to (second place).
　１０…リム、２０…第１ディスク、２１…第１ハブ部、２２…第１スポーク部、２３…リング部、３０…第２ディスク、３１…第２ハブ部、３２…第２スポーク部、３２ｂ…先端部、１００…ホイール（自動車用ホイール） DESCRIPTION OF SYMBOLS 10 ... Rim, 20 ... 1st disk, 21 ... 1st hub part, 22 ... 1st spoke part, 23 ... Ring part, 30 ... 2nd disk, 31 ... 2nd hub part, 32 ... 2nd spoke part, 32b ... tip, 100 ... wheel (automobile wheel)

Claims (5)

  1. 　円筒状のリムと、
    　第１ハブ部と、前記第１ハブ部からホイール径方向外側に延びる複数の第１スポーク部と、前記複数の第１スポーク部のそれぞれのホイール径方向外側の先端部と連結された円環状のリング部と、を備え、前記リング部が前記リムに接合された第１ディスクと、
    　第２ハブ部と、前記第２ハブ部からホイール径方向外側に延びる複数の第２スポーク部と、を備え、前記第２ハブ部が前記第１ハブ部に対して同軸的且つ車両外側に位置し、前記複数の第２スポーク部のそれぞれのホイール径方向外側の先端部が、ホイール周方向における隣り合う前記第１スポーク部の間の位置にて前記リムと接合された第２ディスクと、
    　を備えた、自動車用ホイール。     A cylindrical rim;
    A first hub portion, a plurality of first spoke portions extending outward in the wheel radial direction from the first hub portion, and an annular shape connected to the distal end portion of each of the plurality of first spoke portions in the wheel radial direction. A first disk having a ring part, wherein the ring part is joined to the rim;
    A second hub portion, and a plurality of second spoke portions extending outward in the wheel radial direction from the second hub portion, wherein the second hub portion is coaxial with the first hub portion and positioned outside the vehicle. And a second disk in which a distal end portion of each of the plurality of second spoke portions on the outer side in the wheel radial direction is joined to the rim at a position between the adjacent first spoke portions in a wheel circumferential direction;
    An automobile wheel equipped with
  2. 　請求項１に記載の自動車用ホイールにおいて、
    　前記複数の第２スポーク部のそれぞれが、前記第２ハブ部から、隣り合う前記第１スポーク部の間に形成された開口を車両外側から車両内側に向けて通るように延び、前記複数の第２スポーク部のそれぞれの前記先端部と前記リムとが接合される箇所が、前記第１ディスクのリング部と前記リムとが接合される箇所に対して、車両内側に位置するように構成された、自動車用ホイール。     The automobile wheel according to claim 1,
    Each of the plurality of second spoke portions extends from the second hub portion so as to pass through an opening formed between the adjacent first spoke portions from the outside of the vehicle toward the inside of the vehicle. The portion where the tip portion and the rim of each of the two spoke portions are joined is configured to be located inside the vehicle with respect to the portion where the ring portion of the first disk and the rim are joined. , Automotive wheels.
  3. 　請求項１又は請求項２に記載の自動車用ホイールにおいて、
    　ホイール周方向において隣り合う前記第１スポーク部及び前記第２スポーク部の一部同士がホイール軸方向において対向するように構成された、自動車用ホイール。     The automobile wheel according to claim 1 or 2,
    An automotive wheel configured such that a part of the first spoke part and the second spoke part adjacent in the wheel circumferential direction are opposed to each other in the wheel axial direction.
  4. 　請求項１乃至請求項３の何れか一項に記載の自動車用ホイールにおいて、
    　前記第１スポーク部と前記第２スポーク部とが非接触で配置されるように構成された、自動車用ホイール。     The automobile wheel according to any one of claims 1 to 3,
    The wheel for motor vehicles comprised so that the said 1st spoke part and the said 2nd spoke part may be arrange | positioned without contact.
  5. 　請求項１乃至請求項４の何れか一項に記載の自動車用ホイールにおいて、
    　前記第２ディスクの前記各第２スポーク部のホイール周方向における幅が、ホイール径方向内側端部からホイール径方向外側端部に向けて徐々に広がるように構成された、自動車用ホイール。     The automobile wheel according to any one of claims 1 to 4,
    An automotive wheel configured such that a width of each of the second spoke portions of the second disk in the wheel circumferential direction gradually increases from a wheel radial inner end toward a wheel radial outer end.
PCT/JP2015/073940 2015-08-26 2015-08-26 Wheel for automobile WO2017033299A1 (en)

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PCT/JP2015/073940 WO2017033299A1 (en) 2015-08-26 2015-08-26 Wheel for automobile
JP2017536124A JP6466586B2 (en) 2015-08-26 2015-08-26 Automotive wheel

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412275A1 (en) * 1989-08-07 1991-02-13 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Two-part wheel rim
FR2796593A1 (en) * 1999-07-22 2001-01-26 Peugeot Citroen Automobiles Sa Wheel for vehicles, has two series of spokes, with primary series connected between outer edge of rim and outer edge of hub and secondary group between outer edge of rim and inner edge of hub
FR2995558A1 (en) * 2012-09-14 2014-03-21 Peugeot Citroen Automobiles Sa Car wheel, has wheel part comprising wheel hub element and branches that project around hub element toward rim, where branches are positioned alternately with branches of another wheel part that is made from aluminum or aluminum alloy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412275A1 (en) * 1989-08-07 1991-02-13 Dr.Ing.h.c. F. Porsche Aktiengesellschaft Two-part wheel rim
FR2796593A1 (en) * 1999-07-22 2001-01-26 Peugeot Citroen Automobiles Sa Wheel for vehicles, has two series of spokes, with primary series connected between outer edge of rim and outer edge of hub and secondary group between outer edge of rim and inner edge of hub
FR2995558A1 (en) * 2012-09-14 2014-03-21 Peugeot Citroen Automobiles Sa Car wheel, has wheel part comprising wheel hub element and branches that project around hub element toward rim, where branches are positioned alternately with branches of another wheel part that is made from aluminum or aluminum alloy

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