Hub for a human-powered vehicle and wheel for a human-powered vehicle

Abstract

A wheel hub for a human-powered vehicle includes a hub body and a first spoke seat portion and a second spoke seat portion disposed on opposite sides of the hub body. The first spoke seat portion includes a circumferentially extending first outer surface, recesses for receiving inner spokes, and recesses for receiving outer spokes. The recesses and recesses are disposed in the first outer surface. When viewed axially, the inner spokes intersect the outer spokes. Each recess has an axially inward opening and an additional inner opening that opens in the first outer surface. The inner spokes extend through the additional inner opening. The recesses have an axially outward opening opposite to the axially inward opening and an additional outer opening that opens in the first outer surface. The outer spokes extend through the additional outer opening.

Description

Background Technology

[0001] This disclosure relates to a hub for a human-powered vehicle and a wheel for a human-powered vehicle.

[0002] European Patent Application Publication No. 3112183 discloses a wheel hub for human-powered vehicles, which includes a spoke seat portion. Summary of the Invention

[0003] One object of this disclosure is to provide a hub for a human-powered vehicle and a wheel for a human-powered vehicle, which allows spokes to be simply attached to the spoke seat portion.

[0004] According to a first aspect of this disclosure, a hub is a wheel for a human-powered vehicle. The hub includes a hub body, a first spoke seat portion, and a second spoke seat portion. The hub body includes a central axis defining an axial direction, a radial direction, and a circumferential direction. The hub body also includes a plane defined as extending perpendicular to the axial direction and containing an axial center position of the hub body. The first spoke seat portion is configured to support spokes. The first spoke seat portion includes a first outer surface extending at least partially in the circumferential direction and a plurality of first spoke seat segments disposed in the circumferential direction. Each of the plurality of first spoke seat segments includes a first inner recess and a first outer recess. The first outer recess is positioned further away from the axial center position in the axial direction than the first inner recess. The first inner recess receives a first inner spoke. The first outer recess receives a first outer spoke. When viewed from the axial direction, the first inner spoke intersects the first outer spoke at an intersection location. The first outer spoke is positioned further away from the axial center position than the first inner spoke at the intersection location. The first inner recess has a first axially inward opening facing the plane. The first recess has a first inner additional opening that opens in the first outer surface. A first inner spoke extends through the first inner additional opening. The first outer recess has a first axially outward opening that is opposed to the plane. The first outer recess has a first outer additional opening that opens in the first outer surface. A first outer spoke extends through the first outer additional opening. A second spoke seat portion is configured to support the spoke. The second spoke seat portion and the first spoke seat portion are arranged on opposite sides of an axially central position in the axial direction.

[0005] Utilizing the hub according to the first aspect, a first inner recess receives a first inner spoke and a first outer recess receives a first outer spoke, such that the first outer spoke is positioned at the intersection point further away from the axial center than the first inner spoke. This structure allows the first inner spoke to be removed from the hub while the first outer spoke is held in the first outer recess, and allows the first outer spoke to be removed from the hub while the first inner spoke is held in the first inner recess. Therefore, each spoke can be replaced individually with another spoke without the need to remove other spokes from the hub.

[0006] According to a second aspect of this disclosure, the hub according to the first aspect is configured such that the first inner recess is completely offset from the first outer recess in the circumferential direction.

[0007] Using the hub according to the second aspect, the first inner recess is completely offset from the first outer recess in the circumferential direction. This allows for a reduction in the axial dimension of the first spoke seat portion.

[0008] According to a third aspect of this disclosure, the hub according to the first or second aspect is configured such that the first spoke seat portion includes a ring and a bridging portion, the ring being arranged radially outward from the hub body and extending continuously around the hub body in the circumferential direction, the bridging portion extending radially and connecting the hub body and the ring. A first inner recess and a first outer recess are disposed in the ring.

[0009] Utilizing a hub according to the third aspect, the rim extends continuously around the hub body in the circumferential direction. This increases the mechanical strength of the hub while allowing replacement of each spoke without removing another spoke from the hub.

[0010] According to a fourth aspect of this disclosure, the hub according to the third aspect is configured such that a first recess is positioned a first distance away from the hub body in the axial direction of the first inner spoke, and the first inner spoke received in the first recess extends in the axial direction of the first inner spoke. The first distance is greater than a first length of the first recess in the axial direction of the first inner spoke.

[0011] With the hub according to the fourth aspect, in the state where the first inner spoke is received in the first recess, the head of the first inner spoke can easily move between the hub body and the ring in the axial direction of the first inner spoke.

[0012] According to a fifth aspect of this disclosure, the hub according to the third or fourth aspect is configured such that a first outer recess is positioned a second distance away from the hub body in the axial direction of the first outer spoke, and the first outer spoke received in the first outer recess extends in the axial direction of the first outer spoke. The second distance is greater than the second length of the first outer recess in the axial direction of the first outer spoke.

[0013] With the hub according to the fifth aspect, in the state where the first outer spoke is received in the first outer recess, the head of the first outer spoke can be easily moved between the hub body and the ring in the axial direction of the first outer spoke.

[0014] According to a sixth aspect of this disclosure, the hub according to any one of the third to fifth aspects is configured such that the number of bridging portions is equal to the total number of the first inner recess and the first outer recess.

[0015] By utilizing the hub according to the sixth aspect, the bridge section provides mechanical strength in a preferred manner.

[0016] According to a seventh aspect of this disclosure, the hub according to any one of the first to sixth aspects is configured such that the first recess extends straight and has a first length. A first axial inward opening of the first recess has a first width in a first direction orthogonal to the longitudinal direction of the first recess. The first width is less than the maximum width of the first recess in the first direction.

[0017] Using the hub according to the seventh aspect, since the first width of the first axial inner opening is less than the maximum width of the first recess in the first direction, the removal of the first inner spoke from the first axial inner opening in the axial direction is restricted.

[0018] According to the eighth aspect of this disclosure, the hub according to the seventh aspect is configured such that the first width of the first axial inward opening of the first recess is greater than or equal to half of the maximum width of the first recess in the first direction.

[0019] The first inner spoke is restricted from being removed from the first axial inner opening in the axial direction by means of the hub according to the eighth aspect, in a way that further ensures this.

[0020] According to a ninth aspect of this disclosure, the hub according to any one of the third to sixth aspects is configured such that the first recess includes a first inner edge opening in a first outer surface, a second inner edge disposed in a radially inner surface of the ring, and a first inner intermediate portion positioned between the first inner edge and the second inner edge. The maximum diameters of the first inner intermediate portion and the second inner edge are equal.

[0021] By utilizing the hub according to the ninth aspect, since the maximum diameters of the first inner middle portion and the second inner edge are equal, the formation of the first inner middle portion and the second inner edge is simplified.

[0022] According to a tenth aspect of this disclosure, the hub according to any one of the first to ninth aspects is configured such that the first outer recess extends straight and has a second length. A first axially outward opening of the first outer recess has a second width in a second direction orthogonal to the longitudinal direction of the first outer recess. The second width is less than the maximum width of the first outer recess in the second direction.

[0023] Using the hub according to the tenth aspect, since the second width of the first axially outward opening is less than the maximum width of the first outer recess in the second direction, the removal of the first outer spoke from the first axially outward opening in the axial direction is restricted.

[0024] According to the eleventh aspect of this disclosure, the hub according to the tenth aspect is configured such that the second width of the first axially outward opening of the first outer recess is greater than or equal to half of the maximum width of the first outer recess in the second direction.

[0025] The hub according to aspect eleven further secures the removal of the first outer spoke from the first axially outward opening in the axial direction.

[0026] According to a twelfth aspect of this disclosure, the hub according to the first or second aspect is configured such that the first outer recess includes a first outer edge opening in a first outer surface, a second outer edge disposed in a radially inner surface of the ring, and a first outer intermediate portion positioned between the first outer edge and the second outer edge. The maximum diameters of the first outer intermediate portion and the second outer edge are equal.

[0027] By utilizing the hub according to the twelfth aspect, since the maximum diameters of the first outer middle portion and the second outer edge are equal, the formation of the first outer middle portion and the second outer edge is simplified.

[0028] The wheel according to aspect thirteen of this disclosure is for use in human-powered vehicles. The wheel includes a hub, a first inner spoke, a first outer spoke, and a rim according to any one of aspects one through twelfth.

[0029] Using the wheel according to aspect thirteen, each spoke can be replaced individually with another spoke without removing the other spokes from the wheel.

[0030] According to the fourteenth aspect of this disclosure, the wheel according to the thirteenth aspect is configured such that the first inner spoke includes an inner spoke axis defining the axial direction of the first inner spoke, a first inner spoke end attached to the hub in the axial direction of the first inner spoke, a second inner spoke end attached to the rim in the axial direction of the first inner spoke, a first inner spoke portion extending continuously from the first inner spoke end and positioned closer to the second inner spoke end than the first inner spoke end, and a second inner spoke portion extending continuously from the first inner spoke portion and positioned closer to the second inner spoke end than the first inner spoke portion. The maximum diameter of the first inner spoke end is greater than the maximum diameter of the first inner spoke portion. The maximum diameter of the first inner spoke portion is greater than the maximum diameter of the second inner spoke portion. The first outer spoke includes an outer spoke axis defining the axial direction of the first outer spoke, a first outer spoke end attached to the hub in the axial direction of the first outer spoke, a second outer spoke end attached to the rim in the axial direction of the first outer spoke, a first outer spoke portion extending continuously from the first outer spoke end and positioned closer to the second outer spoke end than the first outer spoke end, and a second outer spoke portion extending continuously from the first outer spoke portion and positioned closer to the second outer spoke end than the first outer spoke portion. The maximum diameter of the first outer spoke end is greater than the maximum diameter of the first outer spoke portion. The maximum diameter of the first outer spoke portion is greater than the maximum diameter of the second outer spoke portion.

[0031] The wheel according to aspect fourteen has a first inner spoke and a first outer spoke having the above-described structure connected to the hub in a preferred manner.

[0032] The wheel according to the fifteenth aspect of this disclosure is for a human-powered vehicle. The wheel includes a hub, a first inner spoke, and a rim, according to the fourth aspect. The first inner spoke includes an inner spoke axis defining the axial direction of the first inner spoke; a first inner spoke end attached to the hub in the axial direction of the first inner spoke; a second inner spoke end attached to the rim in the axial direction of the first inner spoke; a first inner spoke portion continuously extending from the first inner spoke end and positioned closer to the second inner spoke end than the first inner spoke end; and a second inner spoke portion continuously extending from the first inner spoke portion and positioned closer to the second inner spoke end than the first inner spoke portion. The maximum diameter of the first inner spoke end is greater than the maximum diameter of the first inner spoke portion. The maximum diameter of the first inner spoke portion is greater than the maximum diameter of the second inner spoke portion. A first distance is greater than the sum of the length of the first inner spoke end and the length of the first inner spoke portion.

[0033] Using the wheel according to the fifteenth aspect, both the first inner spoke end and the first inner spoke portion can be received in an opening region extending a first distance and move between the hub body and the ring in the axial direction of the first inner spoke.

[0034] The wheel according to the sixteenth aspect of this disclosure is for a human-powered vehicle. The wheel includes a hub, a first outer spoke, and a rim, according to the fifth aspect. The first outer spoke includes an outer spoke axis defining the axial direction of the first outer spoke; a first outer spoke end attached to the hub in the axial direction of the first outer spoke; a second outer spoke end attached to the rim in the axial direction of the first outer spoke; a first outer spoke portion continuously extending from the first outer spoke end and positioned closer to the second outer spoke end than the first outer spoke end; and a second outer spoke portion continuously extending from the first outer spoke portion and positioned closer to the second outer spoke end than the first outer spoke portion. The maximum diameter of the first outer spoke end is greater than the maximum diameter of the first outer spoke portion. The maximum diameter of the first outer spoke portion is greater than the maximum diameter of the second outer spoke portion. A second distance is greater than the sum of the length of the first outer spoke end and the length of the first outer spoke portion.

[0035] Using the wheel according to the sixteenth aspect, both the first outer spoke end and the first outer spoke portion can be received in an opening area extending a second distance and move between the hub body and the ring in the axial direction of the first outer spoke.

[0036] The wheel according to the seventeenth aspect of this disclosure is for a human-powered vehicle. The wheel includes a hub, a first inner spoke, and a rim, according to the seventh or eighth aspect. The first inner spoke includes an inner spoke axis defining the axial direction of the first inner spoke, a first inner spoke end attached to the hub in the axial direction of the first inner spoke, a second inner spoke end attached to the rim in the axial direction of the first inner spoke, a first inner spoke portion continuously extending from the first inner spoke end and positioned closer to the second inner spoke end than the first inner spoke end, and a second inner spoke portion continuously extending from the first inner spoke portion and positioned closer to the second inner spoke end than the first inner spoke portion. The maximum diameter of the first inner spoke end is greater than the maximum diameter of the first inner spoke portion. The maximum diameter of the first inner spoke portion is greater than the maximum diameter of the second inner spoke portion. A first width is less than the maximum diameter of the first inner spoke portion and greater than the maximum diameter of the second inner spoke portion.

[0037] Using the wheel according to the seventeenth aspect, the first inner spoke can be connected to the hub by inserting the second inner spoke portion into the first axial inner opening in the axial direction and then moving the first inner spoke in the axial direction. In this state, since the first width is smaller than the maximum diameter of the first inner spoke portion, the movement of the first inner spoke in the axial direction is restricted. Therefore, as long as the first inner spoke is connected to the rim, the first inner spoke cannot be removed from the hub.

[0038] The wheel according to the eighteenth aspect of this disclosure is for a human-powered vehicle. The wheel includes a hub, a first outer spoke, and a rim according to the tenth or eleventh aspect. The first outer spoke includes an outer spoke axis defining the axial direction of the first outer spoke, a first outer spoke end attached to the hub in the axial direction of the first outer spoke, a second outer spoke end attached to the rim in the axial direction of the first outer spoke, a first outer spoke portion continuously extending from the first outer spoke end and positioned closer to the second outer spoke end than the first outer spoke end, and a second outer spoke portion continuously extending from the first outer spoke portion and positioned closer to the second outer spoke end than the first outer spoke portion. The maximum diameter of the first outer spoke end is greater than the maximum diameter of the first outer spoke portion. The maximum diameter of the first outer spoke portion is greater than the maximum diameter of the second outer spoke portion. A second width is less than the maximum diameter of the first outer spoke portion and greater than the maximum diameter of the second outer spoke portion.

[0039] Using the wheel according to the eighteenth aspect, the first outer spoke can be attached to the hub by inserting the second outer spoke portion into the first axially outward opening in the axial direction and then moving the first outer spoke in the axial direction. In this state, since the second width is smaller than the maximum diameter of the first outer spoke portion, the movement of the first outer spoke in the axial direction is restricted. Therefore, once the first outer spoke is attached to the rim, it cannot be removed from the hub.

[0040] The hub and wheel for human-powered vehicles disclosed herein allow spokes to be simply attached to the spoke seat portion. Attached Figure Description

[0041] Figure 1 This is a side view of a wheel for a human-powered vehicle, including a hub for a wheel for a human-powered vehicle, according to a first embodiment.

[0042] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0043] Figure 3 It is shown Figure 1 A perspective view of a portion of the wheel shown.

[0044] Figure 4 yes Figure 1 The image shows a perspective view of the wheel hub.

[0045] Figure 5 yes Figure 1 The front view of the wheel hub shown.

[0046] Figure 6 It is along Figure 5 The cross-sectional view obtained from line D6-D6 in the diagram.

[0047] Figure 7 From and Figure 6 The cross-sectional view is obtained from the opposite side of the cross-section.

[0048] Figure 8 yes Figure 6 The image shows a magnified partial side view of the wheel hub.

[0049] Figure 9 It was obtained in the axial direction of the first inner spoke. Figure 8 Plan view of the first recess shown.

[0050] Figure 10 yes Figure 7 The image shows a magnified partial side view of the wheel hub.

[0051] Figure 11 It was obtained in the axial direction of the first outer spoke. Figure 10 The plan view of the first external recess shown.

[0052] Figure 12 yes Figure 1 The side view of the first inner spoke shown.

[0053] Figure 13 It is a perspective view including the first inner spoke end.

[0054] Figure 14 yes Figure 12 The image shows an enlarged side view of the first inner spoke, including the first inner spoke end.

[0055] Figure 15 yes Figure 1 The side view of the first outer spoke shown.

[0056] Figure 16 yes Figure 15 The diagram shows a perspective view of the first outer spoke, including the first outer spoke end.

[0057] Figure 17 yes Figure 15 The image shows an enlarged side view of the first outer spoke, including the first outer spoke end.

[0058] Figure 18 yes Figure 1 The first inner spoke shown is a side view before it is attached to the first recess.

[0059] Figure 19 It is connected to Figure 18 A side view of the first inner spoke of the first recess shown.

[0060] Figure 20 This is a perspective view showing a portion of a wheel for a human-powered vehicle, including a hub for a wheel for a human-powered vehicle, according to a second embodiment.

[0061] Figure 21 yes Figure 20 The image shows a side view of the wheel hub, including the second spoke seat portion.

[0062] Figure 22 It is along Figure 21 The cross-sectional view obtained from line D22-D22 in the diagram.

[0063] Figure 23 yes Figure 21 The front view of the second spoke seat portion of the wheel hub shown.

[0064] Figure 24 It is along Figure 23 The cross-sectional view obtained from line D24-D24 in the diagram.

[0065] Figure 25 The second spoke is connected to Figure 20 The cross-sectional view of the second spoke seat portion shown before the second seat.

[0066] Figure 26 This is a cross-sectional view of the second spoke of the second seat connected to the second spoke seat portion 26.

[0067] Figure 27 It is along Figure 26The cross-sectional view obtained from line D27-D27 in the diagram.

[0068] Figure 28 This is a perspective view showing a modified example of a wheel hub used in human-powered vehicles. Detailed Implementation

[0069] First Embodiment Now refer to Figures 1 to 19 A first embodiment of a wheel 10 for a human-powered vehicle is described. A human-powered vehicle is a vehicle that includes at least one wheel and is driven by at least human force. Human-powered vehicles include, for example, various types of bicycles, such as mountain bikes, road bikes, city bikes, freight bikes, manual bicycles, and recumbent bicycles. The number of wheels on a human-powered vehicle is not limited. Human-powered vehicles include, for example, unicycles and vehicles including two or more wheels. Human-powered vehicles are not limited to vehicles constructed to be driven solely by human force. Human-powered vehicles include E-bicycles, which are propelled by an electric motor in addition to human force. E-bicycles include electric-assisted bicycles that utilize an electric motor for assisted propulsion. In the embodiments described below, a human-powered vehicle refers to a bicycle.

[0070] Figure 1 This is a schematic diagram showing an example of wheel 10 as the front wheel. Figure 1 In this case, the tire is not mounted on the wheel 10. The wheel 10 includes a rim 12, spokes 14, and a hub 20.

[0071] like Figure 1 and Figure 2 As shown, in the example, wheel 10 includes a hub 20, a first inner spoke 16, a first outer spoke 18, and a rim 12. Figure 3 As shown, spoke 14 includes, for example, a first spoke 14A and a second spoke 14B. The first spoke 14A includes, for example, a first inner spoke 16 and a first outer spoke 18.

[0072] Now refer to Figures 3 to 5 The hub 20 is described in detail. The hub 20 includes a hub body 22, a first spoke seat portion 24, and a second spoke seat portion 26. The hub body 22 includes a central axis C1 defining the axial direction X, the radial direction Y, and the circumferential direction R. The hub body 22 also includes a plane P1 defined as extending perpendicular to the axial direction X and containing the axial center position ACP1 of the hub body 22.

[0073] The first spoke seat portion 24 is configured to support the spoke 14. The first spoke seat portion 24 is configured to support the first spoke 14A. The second spoke seat portion 26 is configured to support the spoke 14. The second spoke seat portion 26 is configured to support the second spoke 14B. The second spoke seat portion 26 and the first spoke seat portion 24 are arranged on opposite sides of the axial center position ACP1 in the axial direction X. The axial center position ACP1 is located at the center of the hub body 22 in the axial direction X.

[0074] In this embodiment, the axial direction X defined by the central axis C1 includes a first axial direction and a second axial direction opposite to the first axial direction. The hub 20 includes a first hub end positioned on a side corresponding to the first axial direction and a second hub end opposite to the first hub end. The first spoke seat portion 24 extends circumferentially from the first hub end.

[0075] In this embodiment, the second spoke seat portion 26 has the same structure as the first spoke seat portion 24. More specifically, the second spoke seat portion 26 and the first spoke seat portion 24 have a symmetrical structure.

[0076] The diameter of the second spoke seat portion 26 may be the same as or different from the diameter of the first spoke seat portion 24. When the second spoke seat portion 26 and the first spoke seat portion 24 have different diameters, the second spoke 14B and the first spoke 14A may have different lengths.

[0077] The first spoke seat portion 24 and the second spoke seat portion 26 are each defined in a flange extending radially outward from the hub body 22. In the following description, the first spoke seat portion 24 refers to the spoke seat portion positioned on the right side of the rider, corresponding to the direction of travel of the human-powered vehicle.

[0078] like Figure 4 As shown, for example, the first spoke seat portion 24 includes a first outer surface 28 and a plurality of first spoke seat segments 30. The first outer surface 28 extends at least partially in the circumferential direction R. The plurality of first spoke seat segments 30 are disposed in the circumferential direction R. Figure 5 As shown, for example, each of the plurality of first spoke seat sections 30 includes a first inner recess 32 and a first outer recess 34. The first outer recess 34 is positioned further away from the axial center position ACP1 in the axial direction X than the first inner recess 32. The first inner recess 32 receives a first inner spoke 16. The first outer recess 34 receives a first outer spoke 18.

[0079] In the example, each of the plurality of first spoke seat segments 30 includes a single first inner recess 32 and a single first outer recess 34. In the example, the plurality of first spoke seat segments 30 are equally spaced along the circumferential direction R. In the example, adjacent spoke seat segments among the first spoke seat segments 30 are completely offset from each other in the circumferential direction R.

[0080] In the example, the number of the plurality of first spoke seat segments 30 is four. The number of the plurality of first spoke seat segments 30 may be three or fewer, or five or more. The first inner recesses 32 of the plurality of first spoke seat segments 30 have the same structure. The first outer recesses 34 of the plurality of first spoke seat segments 30 have the same structure.

[0081] like Figure 6 and Figure 7 As shown, the first spoke seat portion 24 includes a ring 36 and a bridging portion 38. The ring 36 extends outward from the hub body 22 in the radial direction Y and continuously around the hub body 22 in the circumferential direction R. The bridging portion 38 extends in the radial direction Y and connects the hub body 22 and the ring 36. A first inner recess 32 and a first outer recess 34 are provided in the ring 36. A first outer surface 28 is defined on the outer surface of the ring 36. The ring 36 is continuous in 360 degrees.

[0082] In the example, the number of bridging portions 38 is equal to the total number of the first inner recesses 32 and the first outer recesses 34. In the example, each of the bridging portions 38 includes a first bridging portion 38A positioned near the first inner recess 32 and a second bridging portion 38B positioned near the first outer recess 34. In the example, the first inner recess 32 is partially disposed in the first bridging portion 38A. In the example, the first outer recess 34 is partially disposed in the second bridging portion 38B.

[0083] In the example, the number of first bridging portions 38A is equal to the number of first recesses 32. In the example, the number of second bridging portions 38B is equal to the number of first external recesses 34. In the example, the dimension of the ring 36 in the radial direction is smaller than the dimension of each bridging portion 38.

[0084] In the example, the hub 20 can be formed as a single-piece component integrally comprising a hub body 22, a ring 36, and a bridge portion 38. In the example, the hub 20 can be a metal component, and the hub 20 can be manufactured by any metal product forming method, such as casting, metal cutting, and one or more other known processes. In the example, the hub 20 can be machined to obtain recesses and other holes, such as spoke sockets.

[0085] like Figure 8As shown, each first recess 32 has a first axial inward opening 32A facing the plane P1. Additionally, the first recess 32 has a first inner supplementary opening 32B that opens into the first outer surface 28. A first inner spoke 16 extends through the first inner supplementary opening 32B.

[0086] like Figure 6 As shown, the first recess 32 is positioned a first distance D1 away from the hub body 22 in the axial direction IAX of the first inner spoke, and the first inner spoke 16 received in the first recess 32 extends in the axial direction IAX of the first inner spoke. The first distance D1 is greater than the first length L1 of the first recess 32 in the axial direction IAX of the first inner spoke.

[0087] In the example, the first recess 32 extends straight and has a first length L1. For example... Figure 9 As shown, the first axial inward opening 32A of the first recess 32 has a first width W1 in a first direction orthogonal to the longitudinal direction of the first recess 32. The first width W1 is less than the maximum width MW1 of the first recess 32 in the first direction. In the example, the first width W1 of the first axial inward opening 32A of the first recess 32 is greater than or equal to half of the maximum width MW1 of the first recess 32 in the first direction.

[0088] like Figure 8 As shown, the first recess 32 includes a first inner edge 32C opening in the first outer surface 28, a second inner edge 32D disposed in the radially inner surface of the ring 36, and a first inner intermediate portion 32E positioned between the first inner edge 32C and the second inner edge 32D. The first inner intermediate portion 32E and the second inner edge 32D have the same maximum diameter. More specifically, in the example, the first inner intermediate portion 32E is positioned between the first inner edge 32C and the second inner edge 32D in the longitudinal direction of the first recess 32.

[0089] like Figure 10 As shown, reference Figure 5 The first outer recess 34 has a first axially outward opening 34A facing away from the plane P1. The first outer recess 34 has a first external additional opening 34B that opens in the first outer surface 28. The first outer spoke 18 extends through the first external additional opening 34B.

[0090] like Figure 7 As shown, the first outer recess 34 is positioned a second distance D2 away from the hub body 22 in the axial direction OAX of the first outer spoke, and the first outer spoke 18 received in the first outer recess 34 extends in the axial direction OAX of the first outer spoke. The second distance D2 is greater than the second length L2 of the first outer recess 34 in the axial direction OAX of the first outer spoke.

[0091] In the example, the first concave portion 34 extends straight and has a second length L2. For example... Figure 11 As shown, the first axial outward opening 34A of the first outer recess 34 has a second width W2 in a second direction orthogonal to the longitudinal direction of the first outer recess 34. The second width W2 is less than the maximum width MW2 of the first outer recess 34 in the second direction. In the example, the second width W2 of the first axial outward opening 34A of the first outer recess 34 is greater than or equal to half of the maximum width MW2 of the first outer recess 34 in the second direction.

[0092] like Figure 10 As shown, the first outer recess 34 includes a first outer edge 34C opening in the first outer surface 28, a second outer edge 34D disposed in the radially inner surface of the ring 36, and a first outer intermediate portion 34E positioned between the first outer edge 34C and the second outer edge 34D. The first outer intermediate portion 34E and the second outer edge 34D have the same maximum diameter. More specifically, in the example, the first outer intermediate portion 34E is positioned between the first outer edge 34C and the second outer edge 34D in the longitudinal direction of the first outer recess 34.

[0093] like Figure 5 As shown, the first outer edge 34C of the first outer recess 34 and the first inner edge 32C of the first inner recess 32 are positioned in the radial direction at a distance equal to that of the central axis C1.

[0094] like Figure 5 As shown, the first inner recess 32 is completely offset from the first outer recess 34 in the circumferential direction R. In the example, in both the axial direction X and the circumferential direction R, the deepest point of the first inner additional opening 32B is offset from the deepest point of the axial inner edge of each first outer recess 34 of the first outer additional opening 34B.

[0095] Therefore, when viewed in the radial direction Y, the first inner additional opening 32B of the first inner recess 32 and the first outer additional opening 34B of the first outer recess 34 are arranged alternately in a meandering manner along the outer peripheral surface of the ring 36.

[0096] This can define a narrow axial width portion and a wide axial width portion, which, when viewed in the radial direction Y, are alternately arranged in the first outer surface 28 of the first spoke seat portion 26, thereby producing a meandering shape of the first outer surface 28 of the first spoke seat portion 26 that extends continuously in the circumferential direction R.

[0097] like Figure 6 and Figure 7As shown, when viewed in the axial direction X, in each first spoke seat section 30, the first inner recess 32 does not overlap with the first outer recess 34. Figure 6 As shown, when viewed in the axial direction X, the distance R1 from a first recess 32 in a first spoke seat section 30 to a first outer recess 34 in the same first spoke seat section 30 in the circumferential direction of the ring 36 is different from the distance R2 from the first recess 32 to the first outer recess 34 of the adjacent first spoke seat section 30 in the circumferential direction of the ring 36. In this example, distance R1 is shorter than distance R2.

[0098] like Figure 7 As shown, when viewed in the axial direction X, the distance R1 from a first outer recess 34 in a first spoke seat section 30 to a first inner recess 32 in the same first spoke seat section 30 is different from the distance R3 from the first outer recess 34 to the first inner recess 32 in an adjacent first spoke seat section 30 in the circumferential direction of the ring 36. In this example, distance R1 is shorter than distance R3.

[0099] The first inner spoke 16 may include, for example, carbon fiber reinforced plastic (CFRP). The first inner spoke 16 may also include a metallic material.

[0100] Reference Figure 2 and Figures 12 to 17 The first spoke 14A, namely the first inner spoke 16 and the first outer spoke 18, will be described. In this embodiment, the first inner spoke 16 and the first outer spoke 18 have the same structure. The first inner spoke 16 refers to the first spoke 14A connected to the first recess 32. The first outer spoke 18 refers to the first spoke 14A connected to the first outer spoke 18.

[0101] like Figure 2 As shown, in each first spoke seat section 30, when viewed from the axial direction X, the first inner spoke 16 intersects the first outer spoke 18 at the intersection position IP. The first outer spoke 18 is positioned at the intersection position IP further away from the axial center position ACP1 than the first inner spoke 16.

[0102] Now refer to Figures 12 to 14The first inner spoke 16 is described in further detail. The first inner spoke 16 includes an inner spoke axis 16A, a first inner spoke end 16B, a second inner spoke end 16C, a first inner spoke portion 16D, and a second inner spoke portion 16E. The inner spoke axis 16A defines an axial direction IAX for the first inner spoke. The first inner spoke end 16B is attached to the hub 20 in the axial direction IAX. The second inner spoke end 16C is attached to the rim 12 in the axial direction IAX. The first inner spoke portion 16D extends continuously from the first inner spoke end 16B and is positioned closer to the second inner spoke end 16C than the first inner spoke end 16B. The second inner spoke portion 16E extends continuously from the first inner spoke portion 16D and is positioned closer to the second inner spoke end 16C than the first inner spoke portion 16D.

[0103] In the example, the first inner spoke 16 may also include a third inner spoke portion 16F that extends continuously from the second inner spoke portion 16E. The axial direction IAX of the first inner spoke also refers to the direction in which the first inner spoke 16 received in the first recess 32 extends.

[0104] In the example, wheel 10 includes hub 20, first inner spokes 16 and rim 12.

[0105] like Figure 14 As shown, the maximum diameter IMD1 of the first inner spoke end 16B is greater than the maximum diameter IMD2 of the first inner spoke portion 16D. The maximum diameter IMD2 of the first inner spoke portion 16D is greater than the maximum diameter IMD3 of the second inner spoke portion 16E. Figure 6 As shown, in the example, the first distance D1 is greater than the sum of the length of the first inner spoke end 16B and the length of the first inner spoke portion 16D.

[0106] refer to Figure 9 and Figure 14 In the example, the first width W1 is less than the maximum diameter IMD2 of the first inner spoke portion 16D and greater than the maximum diameter IMD3 of the second inner spoke portion 16E. The first width W1 is also less than the maximum diameter IMD1 of the first inner spoke end 16B.

[0107] Now refer to Figures 15 to 17 The first outer spoke 18 is described in further detail. The first outer spoke 18 comprises, for example, carbon fiber reinforced plastic (CFRP). The first outer spoke 18 may include a metallic material.

[0108] The first outer spoke 18 includes an outer spoke axis 18A, a first outer spoke end 18B, a second outer spoke end 18C, a first outer spoke portion 18D, and a second outer spoke portion 18E. The outer spoke axis 18A defines the axial direction OAX of the first outer spoke. The first outer spoke end 18B is attached to the hub 20 in the axial direction OAX of the first outer spoke. The second outer spoke end 18C is attached to the rim 12 in the axial direction OAX of the first outer spoke. The first outer spoke portion 18D extends continuously from the first outer spoke end 18B and is positioned closer to the second outer spoke end 18C than the first outer spoke end 18B. The second outer spoke portion 18E extends continuously from the first outer spoke portion 18D and is positioned closer to the second outer spoke end 18C than the first outer spoke portion 18D.

[0109] In the example, the first outer spoke 18 may also include a third outer spoke portion 18F that extends continuously from the second outer spoke portion 18E. The axial direction OAX of the first outer spoke also refers to the direction in which the first outer spoke 18, received in the first outer recess 34, extends. In the example, the wheel 10 includes a hub 20, a first outer spoke 18, and a rim 12.

[0110] like Figure 17 As shown, the maximum diameter OMD1 of the first outer spoke end 18B is greater than the maximum diameter OMD2 of the first outer spoke portion 18D. The maximum diameter OMD2 of the first outer spoke portion 18D is greater than the maximum diameter OMD3 of the second outer spoke portion 18E. Figure 7 As shown, in the example, the second distance D2 is greater than the sum of the length of the first outer spoke end 18B and the length of the first outer spoke portion 18D.

[0111] refer to Figure 11 and Figure 17 In the example, the second width W2 is less than the maximum diameter OMD2 of the first outer spoke portion 18D and greater than the maximum diameter OMD3 of the second outer spoke portion 18E. The second width W2 is also less than the maximum diameter OMD1 of the first outer spoke end 18B.

[0112] Now refer to Figure 18 and Figure 19 The process for attaching the first inner spoke 16 to the wheel 10, and more specifically to the hub 20 and rim 12, is described. Figure 18 As shown, the second inner spoke portion 16E is received in the first recess 32 from the axial inner side of the hub 20, and the maximum diameter IMD3 of the second inner spoke portion 16E is smaller than the first width W1 of the first axial inner opening 32A.

[0113] In this state, the first inner spoke end 16B and the first inner spoke portion 16D are accommodated in an opening area surrounded by the bridging portion 38 of two adjacent spoke seat sections in the ring 36, the hub body 22, and the first spoke seat section 30. The size of this opening area is set such that the first inner spoke 16 does not interfere with the hub 20 during the coupling process.

[0114] The first inner spoke 16 is moved in the axial direction IAX of the first inner spoke, such that the first inner spoke portion 16D is moved into the first recess 32, and the first inner spoke end 16B contacts the radial inward opening of the first recess 32. Since the maximum diameter IMD1 of the first inner spoke end 16B is greater than the maximum width MW1 of the first recess 32, the first inner spoke end 16B acts as a stop to prevent the first inner spoke 16 from moving further through the first recess 32 in the axial direction IAX of the first inner spoke.

[0115] With the first inner spoke portion 16D received in the first recess 32 and the first inner spoke end 16B in contact with the radially inward opening of the first recess 32, the first inner spoke 16 is attached to the rim 12. The first inner spoke 16 can be attached to the rim 12 using known processes. In this example, the second inner spoke end 16C is fastened to the rim 12. As a result, the first inner spoke 16 is attached to the wheel 10.

[0116] In this configuration, the first inner spoke 16 is connected to the hub 20 and the rim 12 by simply arranging the first inner spoke end 16B and the first inner spoke portion 16D near the hub 20. During the connection process, the second inner spoke end 16C, which is opposite to the first inner spoke end 16B, need not be arranged near the hub 20.

[0117] To remove the first inner spoke 16 from the hub 20, the first inner spoke 16 is separated from the rim 12 and then moved in the axial direction IAX until the second inner spoke portion 16E is positioned in the first recess 32. From this position, the first inner spoke 16 is moved inward in the axial direction X. As a result, the first inner spoke 16 is removed from the hub 20.

[0118] Using this structure, the first inner spoke 16 can be removed from the hub 20 without removing the first outer spoke 18 from the hub 20. In other words, the first inner spoke 16 can be removed from the hub 20 individually, while the other spokes remain on the hub 20.

[0119] The first outer spoke 18 can be attached to the wheel 10 in the same manner as the first inner spoke 16. The second outer spoke portion 18E is received in the first outer recess 34 in the axial direction X, and the maximum diameter OMD3 of the second outer spoke portion 18E is smaller than the second width W2 of the first axial outer opening 34.

[0120] In this configuration, the first outer spoke end 18B and the first outer spoke portion 18D are accommodated in an opening area surrounded by the bridging portion 38 in two adjacent spoke seat sections of the ring 36, the hub body 22, and the first spoke seat section 30. The dimensions of this space are configured such that the first outer spoke 18 does not interfere with the hub 20 during the coupling process.

[0121] The first outer spoke 18 is moved in the axial direction OAX of the first outer spoke, such that the first outer spoke portion 18D is moved into the first outer recess 34, and the first outer spoke end 18B contacts the radially inward opening of the first outer recess 34. Since the maximum diameter OMD1 of the first outer spoke end 18B is greater than the maximum width MW2 of the first outer recess 34, the first outer spoke end 18B serves as a stop to prevent the first outer spoke 18 from moving further through the first outer recess 34 in the axial direction OAX of the first outer spoke.

[0122] With the first outer spoke portion 18D received in the first outer recess 34 and the first outer spoke end 18B in contact with the radially inward opening of the first outer recess 34, the first outer spoke 18 is attached to the rim 12. The first outer spoke 18 can be attached to the rim 12 using known processes. In this example, the second outer spoke end 18C is fastened to the rim 12. As a result, the first outer spoke 18 is attached to the wheel 10.

[0123] In this configuration, the first outer spoke 18 is connected to the hub 20 and the rim 12 by simply arranging the first outer spoke end 18B and the first outer spoke portion 18D near the hub 20. During the connection process, the second outer spoke end 18C, which is opposite to the first outer spoke end 18B, need not be arranged near the hub 20.

[0124] To remove the first outer spoke 18 from the hub 20, the first outer spoke 18 is separated from the rim 12 and then moved in the axial direction OAX until the second outer spoke portion 18E is positioned in the first outer recess 34. From this position, the first outer spoke 18 is moved outward in the axial direction X. As a result, the first outer spoke 18 is removed from the hub 20.

[0125] Using this structure, the first outer spoke 18 can be removed from the hub 20 without removing the first inner spoke 16 from the hub 20. In other words, the first outer spoke 18 can be removed from the hub 20 individually, while the other spokes remain on the hub 20.

[0126] Second Embodiment Figure 20A second embodiment of the wheel 10 is shown, which is, for example, a front wheel. The wheel 10 includes a plurality of spokes 14. The plurality of spokes 14 includes a first spoke 14A and a second spoke 40. The first spoke 14A includes, for example, a first inner spoke 16 and a first outer spoke 18. The second spoke 40 has the same structure as the first inner spoke 16 and the first outer spoke 18.

[0127] like Figure 25 As shown, the second spoke 40 includes a second spoke axis 40A, a second spoke end 40B, a first portion 40C, and a second portion 40D. The second spoke axis 40A corresponds to the inner spoke axis 16A. The second spoke end 40A corresponds to the first inner spoke end 16B. The first portion 40C corresponds to the first inner spoke portion 16D. The second portion 40D corresponds to the second inner spoke portion 16E.

[0128] In this embodiment of the hub 20, the second spoke seat portion 26 and the first spoke seat portion 24 have different structures. The first spoke seat portion 24 and the second spoke seat portion 26 are each defined in a flange, for example, extending radially outward from the hub body 22.

[0129] In the following description, the second spoke seat portion 26 refers to the spoke seat portion located on the right side of the rider corresponding to the direction of travel of the human-powered vehicle. In this embodiment, the second spoke 40 is coupled to the second spoke seat portion 26 such that the second spoke 40 extends in the radial direction Y.

[0130] The first spoke seat portion 24 of this embodiment has the same structure as the first spoke seat portion 24 and the second spoke seat portion 26 of the first embodiment. Reference will now be made to... Figures 20 to 27 The second spoke seat portion 26 of this embodiment will be described in further detail.

[0131] like Figure 20 As shown, the second spoke seat portion 26 of this embodiment includes a plurality of second spoke seat segments 42. A second spoke 40 is attached to each of the second spoke seat segments 42. The second spoke seat segments 42 are, for example, equally spaced along the circumferential direction R.

[0132] like Figure 24 As shown, each second spoke seat section 42 includes, for example, a protrusion 44 projecting from the hub body 22. The second spoke seat section 42 includes, for example, a spoke inlet 46 configured to receive a second spoke 40. The spoke inlet 46 extends from the axially inner side to the axially outer side through the second spoke seat portion 26.

[0133] The spoke insert 46 has an axially inward opening 46A and an axially outward opening 46B relative to the second spoke seat portion 26. The axially inward opening 46A of the spoke insert 46 is positioned radially outside the axially outward opening 46B of the spoke insert 46.

[0134] The spoke socket 46 includes an axially inner portion 46C and an axially outer portion 46D. As the axially inner portion 46C extends from the axially inner side toward the axially outer side, it is inclined from the radially outer side toward the radially inner side. The axially outer portion 46D extends in the axial direction X.

[0135] The maximum inner diameter of the axially outer portion 46D is greater than the maximum inner diameter of the axially inner portion 46C. The maximum inner diameter of the axially outer portion 46D is greater than the maximum diameter of the second spoke end 40B. The maximum inner diameter of the axially inner portion 46C is less than the maximum diameter of the second spoke end 40B.

[0136] Now refer to Figures 25 to 27 Describes the process for attaching the second spoke 40 to the hub 20. (e.g.) Figure 25 As shown, the second spoke 40 is inserted into the spoke socket 46 from the axially outward opening 46B. The second spoke 40 is further moved in the second spoke axial direction SAX until the first portion 40C is positioned in the axially inward portion 46C of the spoke socket 46, and the second spoke 40 received in the spoke socket 46 extends in the second spoke axial direction SAX. Since the maximum diameter of the second spoke end 40B is greater than the maximum inner diameter of the axially inward portion and smaller than the maximum inner diameter of the axially outward portion, the movement of the second spoke 40 in the second spoke axial direction SAX stops when the second spoke end 40B contacts the edge of the axially inward portion 46C.

[0137] exist Figure 26 With the first portion 40C positioned in the axially inner portion, the second spoke 40 is attached to the rim 12. The second spoke 40 can be attached to the rim 12 using known processes. As a result, the second spoke 40 is attached to the wheel 10.

[0138] Modified Example The descriptions relating to the embodiments, without being intended to be limiting, illustrate applicable forms of hubs and wheels for human-powered vehicles according to the present disclosure. Hubs and wheels according to the present disclosure can be applied to, for example, modified examples of the embodiments described below, as well as combinations of at least two mutually non-contradictory examples of the modified examples.

[0139] In this embodiment, wheel 10 is a front wheel. Alternatively, wheel 10 may be a rear wheel. Figure 28An example of a rear wheel is shown. The rear wheel includes a sprocket mounting portion 48 to which multiple sprockets are mounted. The sprocket mounting portion 48 has a spline 48A that engages with another spline formed at the multiple sprockets. The spline 48A extends in the axial direction X. The maximum number of sprockets is currently 12, but up to 13 sprockets can be mounted by extending the spline length by approximately 2.5 mm in the axial direction. Figure 28 In this modified example, the first spoke seat portion 24 refers to the spoke seat portion positioned on the right side of the rider, corresponding to the direction of travel of the human-powered vehicle. The second spoke seat portion 26 refers to the spoke seat portion positioned on the left side of the rider. In this modified example, the second spoke seat portion 26 has the same structure as the second spoke seat portion 26 in the second embodiment.

[0140] In the modified example, the first inner spoke 16 is not limited to Figures 12 to 14 Those shown, and can be changed in any way.

[0141] In the modified example, the first outer spoke 18 is not limited to Figures 15 to 17 Those shown, and can be changed in any way.

[0142] In the first embodiment, the first inner recess 32 is completely offset from the first outer recess 34 in the circumferential direction R. Alternatively, the first inner recess 32 and the first outer recess 34 may at least partially overlap each other in the circumferential direction R.

[0143] In the first embodiment, the number of bridging portions 38 is equal to the total number of the first inner recesses 32 and the first outer recesses 34. Alternatively, the number of bridging portions 38 may differ from the total number of the first inner recesses 32 and the first outer recesses 34. In this example, the number of bridging portions 38 may be greater than the total number of the first inner recesses 32 and the first outer recesses 34.

[0144] In the first embodiment, the first width W1 of the first axial inner opening 32A of the first recess 32 is greater than or equal to half of the maximum width MW1 of the first recess 32 in the first direction. Alternatively, the first width W1 of the first axial inner opening 32A of the first recess 32 may be less than half of the maximum width MW1 of the first recess 32 in the first direction.

[0145] In the first embodiment, the first inner middle portion 32E and the second inner edge 32D have the same maximum diameter. Alternatively, the first inner middle portion 32E and the second inner edge 32D may have different maximum diameters.

[0146] In the first embodiment, the second width W2 of the first axial outward opening 34A of the first outer recess 34 is greater than or equal to half of the maximum width MW2 of the first outer recess 34 in the second direction. Alternatively, the second width W2 of the first axial outward opening 34A of the first outer recess 34 may be less than half of the maximum width MW2 of the first outer recess 34 in the second direction.

[0147] In the first embodiment, the first outer middle portion 34E and the second outer edge 34D have the same maximum diameter. Alternatively, the first outer middle portion 34E and the second outer edge 34D may have different maximum diameters.

[0148] As used in this disclosure, the phrase “at least one” means “one or more” of the desired selection. For example, as used in this disclosure, the phrase “at least one” means “only one single selection” or “both of two selections” if the number of selections is two. As another example, as used in this disclosure, the phrase “at least one” means “only one single selection” or “any combination equal to or more than two selections” if the number of selections is equal to or more than three. Furthermore, as used in this disclosure, the term “and / or” means “one or both of them”. For example, the phrase “at least one of A and B” covers (1) A alone, (2) B alone, and (3) both A and B. The phrase “at least one of A, B, and C” covers (1) A alone, (2) B alone, (3) C alone, (4) both A and B, (5) both B and C, (6) both A and C, and (7) all of A, B, and C. In other words, in this disclosure, the phrase “at least one of A and B” does not mean “at least one of A and at least one of B”.

Claims

1. A hub for a wheel of a human-powered vehicle, the hub comprising: A hub body, the hub body including a central axis defining an axial direction, a radial direction and a circumferential direction, the hub body defining a plane perpendicular to the axial direction and including the axial center position of the hub body; A first spoke seat portion configured to support a spoke, the first spoke seat portion comprising: The first outer surface extending at least partially in the circumferential direction, and A plurality of first spoke seat sections are provided in the circumferential direction, each of the plurality of first spoke seat sections including a first inner recess and a first outer recess, the first outer recess being positioned further away from the axial center in the axial direction than the first inner recess. The first concave portion receives the first inner spoke, and the first convex portion receives the first outer spoke. When viewed from the axial direction, the first inner spoke intersects the first outer spoke at an intersection point, and the first outer spoke is positioned at the intersection point further away from the axial center than the first inner spoke. The first recess has a first axial inward opening facing the plane, and the first recess has a first additional inner opening opening in the first outer surface, the first inner spokes extending through the first additional inner opening, and The first outer recess has a first axially outward opening opposite to the plane, the first outer recess has a first external additional opening that opens in the first outer surface, and the first outer spoke extends through the first external additional opening; as well as A second spoke seat portion is configured to support the spokes, and the second spoke seat portion and the first spoke seat portion are arranged on opposite sides of the axial center position in the axial direction.

2. The wheel hub according to claim 1, wherein, The first inner recess is completely offset from the first outer recess in the circumferential direction.

3. The wheel hub according to claim 1, wherein, The first spoke seat portion includes: A ring, the ring being arranged outwardly from the hub body in the radial direction and extending continuously around the hub body in the circumferential direction, and A bridging portion, which extends in the radial direction and connects the hub body and the ring, The first inner recess and the first outer recess are disposed in the ring.

4. The wheel hub according to claim 3, wherein, The first recess is positioned at a first distance away from the hub body in the axial direction of the first inner spoke, and the first inner spoke received in the first recess extends in the axial direction of the first inner spoke, the first distance being greater than a first length of the first recess in the axial direction of the first inner spoke.

5. The wheel hub according to claim 3, wherein, The first outer recess is positioned at a second distance away from the hub body in the axial direction of the first outer spoke, and the first outer spoke received in the first outer recess extends in the axial direction of the first outer spoke, the second distance being greater than the second length of the first outer recess in the axial direction of the first outer spoke.

6. The wheel hub according to claim 3, wherein, The number of bridging portions is equal to the total number of the first inner recess and the first outer recess.

7. The wheel hub according to claim 1, wherein, The first concave portion extends straight and has a first length. The first axial inward opening of the first recess has a first width in a first direction orthogonal to the longitudinal direction of the first recess, and The first width is less than the maximum width of the first recess in the first direction.

8. The wheel hub according to claim 7, wherein, The first width of the first axial inward opening of the first recess is greater than or equal to half of the maximum width of the first recess in the first direction.

9. The wheel hub according to claim 3, wherein, The first recess includes a first inner edge opening in the first outer surface, a second inner edge disposed in the radial inner surface of the ring, and a first inner middle portion positioned between the first inner edge and the second inner edge. The maximum diameters of the first inner middle portion and the second inner edge are equal.

10. The wheel hub according to claim 1, wherein, The first concave portion extends straight and has a second length. The first axial outward opening of the first outer recess has a second width in a second direction orthogonal to the longitudinal direction of the first outer recess, and The second width is less than the maximum width of the first external recess in the second direction.

11. The wheel hub according to claim 10, wherein, The second width of the first axial outward opening of the first external recess is greater than or equal to half of the maximum width of the first external recess in the second direction.

12. The wheel hub according to claim 1, wherein, The first outer recess includes a first outer edge opening in the first outer surface, a second outer edge disposed in the radially inner surface of the ring, and a first outer middle portion positioned between the first outer edge and the second outer edge. The maximum diameters of the first outer middle portion and the second outer edge are equal.

13. A wheel for a human-powered vehicle, said wheel comprising: The wheel hub according to claim 1; The first inner spoke; The first outer spoke; as well as Wheel rim.

14. The wheel according to claim 13, wherein, The first inner spoke includes: The axis of the inner spoke is defined by the axial direction of the first inner spoke. The first inner spoke is attached to the end of the first inner spoke of the hub in the axial direction. The second inner spoke end of the rim is attached to the first inner spoke in the axial direction. The first inner spoke portion extends continuously from the first inner spoke end and is positioned closer to the second inner spoke end than the first inner spoke end, and The second inner spoke portion extends continuously from the first inner spoke portion and is positioned closer to the end of the second inner spoke portion than the first inner spoke portion. The maximum diameter at the end of the first inner spoke is greater than the maximum diameter of the entire first inner spoke portion. The maximum diameter of the first inner spoke portion is greater than the maximum diameter of the second inner spoke portion. The first outer spoke includes: The outer spoke axis is defined in the axial direction of the first outer spoke. The first outer spoke is attached to the first outer spoke end of the hub in the axial direction. The second outer spoke end of the rim is attached to the first outer spoke in the axial direction. The first outer spoke portion extends continuously from the first outer spoke end and is positioned closer to the second outer spoke end than the first outer spoke end, and The second outer spoke portion extends continuously from the first outer spoke portion and is positioned closer to the end of the second outer spoke portion than the first outer spoke portion. The maximum diameter of the first outer spoke end is greater than the maximum diameter of the first outer spoke portion, and The maximum diameter of the first outer spoke portion is greater than the maximum diameter of the second outer spoke portion.

15. A wheel for a human-powered vehicle, the wheel comprising: The wheel hub according to claim 4; The first inner spoke; as well as Wheel rim, among which, The first inner spoke includes: The axis of the inner spoke is defined by the axial direction of the first inner spoke. The first inner spoke is attached to the end of the first inner spoke of the hub in the axial direction. The second inner spoke end of the rim is attached to the first inner spoke in the axial direction. The first inner spoke portion extends continuously from the first inner spoke end and is positioned closer to the second inner spoke end than the first inner spoke end, and The second inner spoke portion extends continuously from the first inner spoke portion and is positioned closer to the end of the second inner spoke portion than the first inner spoke portion. The maximum diameter at the end of the first inner spoke is greater than the maximum diameter of the entire first inner spoke portion. The maximum diameter of the first inner spoke portion is greater than the maximum diameter of the second inner spoke portion, and The first distance is greater than the sum of the length of the first inner spoke end and the length of the first inner spoke portion.

16. A wheel for a human-powered vehicle, the wheel comprising: The wheel hub according to claim 5; The first outer spoke; as well as Wheel rim, among which, The first outer spoke includes: The outer spoke axis is defined in the axial direction of the first outer spoke. The first outer spoke is attached to the first outer spoke end of the hub in the axial direction. The second outer spoke end of the rim is attached to the first outer spoke in the axial direction. The first outer spoke portion extends continuously from the first outer spoke end and is positioned closer to the second outer spoke end than the first outer spoke end, and The second outer spoke portion extends continuously from the first outer spoke portion and is positioned closer to the end of the second outer spoke portion than the first outer spoke portion. The maximum diameter at the end of the first outer spoke is greater than the maximum diameter of the entire first outer spoke portion. The maximum diameter of the first outer spoke portion is greater than the maximum diameter of the second outer spoke portion, and The second distance is greater than the sum of the length of the first outer spoke end and the length of the first outer spoke portion.

17. A wheel for a human-powered vehicle, the wheel comprising: The wheel hub according to claim 7; The first inner spoke; as well as Wheel rim, among which, The first inner spoke includes: The axis of the inner spoke is defined by the axial direction of the first inner spoke. The first inner spoke is attached to the end of the first inner spoke of the hub in the axial direction. The second inner spoke end of the rim is attached to the first inner spoke in the axial direction. The first inner spoke portion extends continuously from the first inner spoke end and is positioned closer to the second inner spoke end than the first inner spoke end, and The second inner spoke portion extends continuously from the first inner spoke portion and is positioned closer to the end of the second inner spoke portion than the first inner spoke portion. The maximum diameter at the end of the first inner spoke is greater than the maximum diameter of the entire first inner spoke portion. The maximum diameter of the first inner spoke portion is greater than the maximum diameter of the second inner spoke portion, and The first width is less than the maximum diameter of the first inner spoke portion and greater than the maximum diameter of the second inner spoke portion.

18. A wheel for a human-powered vehicle, the wheel comprising: The wheel hub according to claim 10; The first outer spoke; as well as Wheel rim, among which, The first outer spoke includes: The outer spoke axis is defined in the axial direction of the first outer spoke. The first outer spoke is attached to the first outer spoke end of the hub in the axial direction. The second outer spoke end of the rim is attached to the first outer spoke in the axial direction. The first outer spoke portion extends continuously from the first outer spoke end and is positioned closer to the second outer spoke end than the first outer spoke end, and The second outer spoke portion extends continuously from the first outer spoke portion and is positioned closer to the end of the second outer spoke portion than the first outer spoke portion. The maximum diameter at the end of the first outer spoke is greater than the maximum diameter of the entire first outer spoke portion. The maximum diameter of the first outer spoke portion is greater than the maximum diameter of the second outer spoke portion, and The second width is less than the maximum diameter of the first outer spoke portion and greater than the maximum diameter of the second outer spoke portion.

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