COMPONENT FOR A HUMAN-POWERED VEHICLE

Abstract

A component for a human-powered vehicle 10 comprises a splined section 20 and a plurality of knurled projections 50. The splined section 20 includes a plurality of splined teeth 22. In the assembled state, the splined section 20 is configured to bear directly or indirectly against a locking element 26 in an axial direction D1. The plurality of knurled projections 50 are provided on the splined section 20 such that they project from the splined section 20 in the axial direction D1. In the assembled state, the plurality of knurled projections 50 are configured to bear directly or indirectly against a plurality of locking knurled projections 60 provided on the locking element 26.The plurality of knurled projections 50 have a total number of projections that is less than the total number of locking projections of the plurality of locking knurled projections 60 of the locking element 26.

Description

[0001] The present invention relates to a component for a human-powered vehicle.

[0002] A human-powered vehicle includes a component that is attached to another component by a locking element. The component and the locking element include a loose stopper, such as a knurled section with a plurality of protrusions. One of the objects of the present invention is to provide a component that allows the plurality of protrusions to be formed by machining. Another object of the present invention is to provide a component that can reliably prevent the locking element from loosening.

[0003] According to a first aspect of the present invention, a component for a human-powered vehicle has a rotational center axis that defines an axial direction, a radial direction, and a circumferential direction. The component for a human-powered vehicle comprises a splined section and a plurality of knurled projections. The splined section includes a plurality of splined teeth configured to engage, in a torque-transmitting manner, with a plurality of additional splined teeth of an additional component when the component for a human-powered vehicle is mounted on the human-powered vehicle. The splined section is configured to bear directly or indirectly against a locking element in the axial direction when the component is mounted.The multitude of knurled projections are positioned on the splined section such that they project axially from the splined section. In the assembled state, these knurled projections are designed to directly or indirectly engage with a multitude of locking knurled projections provided on the locking element. The total number of projections in this multitude is less than the total number of locking knurled projections in the multiple locking knurled projections of the locking element.

[0004] With the component for a human-powered vehicle, as described in the first aspect, it is possible to create the numerous knurled protrusions through machining, since the total number of protrusions is smaller than the total number of locking protrusions. This reduces machining time. Furthermore, it is possible to create the numerous knurled protrusions on a difficult-to-machine material (for example, titanium).

[0005] According to a second aspect of the present invention, a component for a human-powered vehicle has a rotational center axis that defines an axial direction, a radial direction, and a circumferential direction. The component for a human-powered vehicle comprises a splined section and a plurality of knurled projections. The splined section includes a plurality of splined teeth configured to engage, in a torque-transmitting manner, with a plurality of additional splined teeth of an additional component when the component for a human-powered vehicle is mounted on the human-powered vehicle. The splined section is configured to bear directly or indirectly against a locking element in the axial direction when the component is mounted.The multitude of knurled projections are arranged on the splined section such that they project axially from the splined section. In the assembled state, these knurled projections are designed to directly or indirectly engage with a multitude of locking knurled projections provided on the locking element. One or two of these knurled projections are arranged on each of the multiple splined teeth.

[0006] With the component for a human-powered vehicle, as described in the second aspect, it is possible to create the multitude of knurled protrusions through machining, since one or two of the knurled protrusions are arranged on each of the multiple wedge teeth. This reduces machining time. Furthermore, it is possible to create the multitude of knurled protrusions on a material that is difficult to machine.

[0007] According to a third aspect of the present invention, a component for a human-powered vehicle has a rotational center axis that defines an axial direction, a radial direction, and a circumferential direction. The component for a human-powered vehicle comprises a splined section and a plurality of knurled projections. The splined section includes a plurality of splined teeth configured to engage, in a torque-transmitting manner, with a plurality of additional splined teeth of an additional component when the component for a human-powered vehicle is mounted on the human-powered vehicle. The splined section is configured to bear directly or indirectly against a locking element in the axial direction when the component is mounted.The plurality of knurled projections are arranged on the splined section such that they project axially from the splined section. In the assembled state, these knurled projections are designed to directly or indirectly abut a plurality of locking knurled projections provided on the locking element. Each knurled projection has a projection reference line defined as passing through the center axis of rotation and a radially outermost circumferential center point of each knurled projection. A plurality of projection angles are defined between a projection reference line of one knurled projection and a projection reference line of an adjacent knurled projection in the circumferential direction.One knurled projection from the multitude and its adjacent one from the multitude lie side by side in the circumferential direction, without any further projection between them. The multitude of projection angles includes a first projection angle and a second projection angle that differs from the first.

[0008] With the component for a human-powered vehicle according to the third aspect, it is possible to reliably form the multitude of knurled protrusions on the splined section, since the second protrusion angle differs from the first. This reliably prevents the locking element from loosening.

[0009] According to a fourth aspect of the present invention, the component for a human-powered vehicle according to one of the first to third aspects is designed such that the plurality of knurled projections extend radially along the splined section. With the component for a human-powered vehicle according to the fourth aspect, the plurality of knurled projections reliably prevent the locking element from disengaging.

[0010] According to a fifth aspect of the present invention, the component for a human-powered vehicle according to one of the first to fourth aspects is designed such that the plurality of knurled projections are arranged circumferentially such that they are spaced apart from one another. With the component for a human-powered vehicle according to the fifth aspect, the plurality of knurled projections can reliably prevent the locking element from disengaging.

[0011] According to a sixth aspect of the present invention, the component for a human-powered vehicle according to one of the first to fifth aspects is designed such that the total number of knurled projections of the plurality of locking projections is less than half the total number of locking knurled projections of the plurality of locking projections of the locking element. With the component for a human-powered vehicle according to the sixth aspect, it is possible to reduce the machining time.

[0012] According to a seventh aspect of the present invention, the component for a human-powered vehicle according to the third aspect is designed such that the plurality of knurled protrusions includes a third protrusion angle that differs from each of the first and second protrusion angles. With the component for a human-powered vehicle according to the seventh aspect, it is possible to reliably form the plurality of knurled protrusions on the splined section. This reliably prevents the locking element from loosening.

[0013] According to an eighth aspect of the present invention, the component for a human-powered vehicle according to the seventh aspect is designed such that the plurality of knurled protrusions includes a fourth protrusion angle that differs from each of the first, second, and third protrusion angles. With the component for a human-powered vehicle according to the eighth aspect, it is possible to form the plurality of knurled protrusions on the splined section more reliably. This allows the loosening of the locking element to be prevented more reliably.

[0014] According to a ninth aspect of the present invention, the component for a human-powered vehicle according to one of the first to eighth aspects is designed such that the total number of knurled projections of the plurality of knurled projections is 40, 36, and 20, respectively. With the component for a human-powered vehicle according to the ninth aspect, it is possible to produce the plurality of knurled projections by machining. This reduces the machining time. Furthermore, it is possible to form the plurality of knurled projections on a material that is difficult to machine.

[0015] According to a tenth aspect of the present invention, the component for a human-powered vehicle according to any one of the first to ninth aspects is designed such that the component for a human-powered vehicle includes an annular rotating component of a human-powered vehicle. With the component for a human-powered vehicle according to the tenth aspect, it is possible to produce the plurality of knurled projections by machining. This reduces the machining time. Furthermore, it is possible to form the plurality of knurled projections on a material that is difficult to machine.

[0016] According to an eleventh aspect of the present invention, the component for a human-powered vehicle according to the tenth aspect is designed such that the annular rotational component includes a front sprocket, a rear sprocket, and a disc brake rotor of the human-powered vehicle. With the component for a human-powered vehicle according to the eleventh aspect, it is possible to form the plurality of knurled projections by machining on one of the front sprocket, the rear sprocket, and the disc brake rotor.

[0017] According to a twelfth aspect of the present invention, the component for a human-powered vehicle according to any one of the first to eleventh aspects further comprises a plurality of sprocket teeth arranged radially outside the splined section in the radial direction. With the component for a human-powered vehicle according to the twelfth aspect, it is possible to form the plurality of knurled projections by machining on one of the front and rear sprockets.

[0018] According to a thirteenth aspect of the present invention, the component for a human-powered vehicle according to any of the first to twelfth aspects is configured such that the plurality of splined teeth of the splined section are designed to engage with a crank arm, a crank axle, and a hub assembly. With the component for a human-powered vehicle according to the thirteenth aspect, it is possible to form the plurality of knurled projections by machining on one of the front sprocket and the rear sprocket.

[0019] According to a fourteenth aspect of the present invention, the component for a human-powered vehicle according to any of the first to thirteenth aspects is designed such that the plurality of knurled projections each have a tightening flank and a non-tightening flank, the latter being opposite to the tightening flank in the circumferential direction. The tightening flank is smoother than the non-tightening flank. With the component for a human-powered vehicle according to the fourteenth aspect, the plurality of knurled projections enables easy tightening and difficult loosening of the locking element.

[0020] According to a fifteenth aspect of the present invention, the component for a human-powered vehicle according to one of the first to fourteenth aspects is designed such that the plurality of knurled projections each have an asymmetrical cross-section along the circumferential direction. With the component for a human-powered vehicle according to the fifteenth aspect, the plurality of knurled projections allows for easy tightening and difficult loosening of the locking element.

[0021] A more complete understanding of the invention and its many associated advantages will be easily achieved by referring to the following detailed description in conjunction with the accompanying drawings, wherein: Fig. 1 a side view of a human-powered vehicle that includes a component for a human-powered vehicle according to one of the embodiments; Fig. 2 is a perspective view of a crank assembly, which is the component for a human-powered vehicle of the in Fig. 1 depicted human-powered vehicle includes; Fig. 3 a side view of the in Fig. The component shown in section 2 is for a human-powered vehicle; Fig. 4 a cross-sectional view of the crank assembly along line IV-IV in Fig. 6 is; Fig. 5 another perspective view of the in Fig. The crank assembly shown in section 2 is; Fig. 6 a cross-sectional view of the crank assembly along line VI-VI in Fig. 5 is; Fig. 7 a cross-sectional view of the crank assembly along line VII-VII in Fig. 6 is; Fig. 8 a partially enlarged side view of the in Fig. The component shown in section 3 is for a human-powered vehicle; Fig. 9 a partially enlarged perspective view of the in Fig. The component shown in section 3 is for a human-powered vehicle; Fig. 10 a partially enlarged side view of a wedge-shaped section of the in Fig. The component shown in section 3 is for a human-powered vehicle; Fig. 11 a cross-sectional view of the crank assembly along line XI-XI in Fig. 10 is; Fig. 12 a side view of a in Fig. The locking element of the crank assembly shown in section 5 is; Fig. 13 is a partially enlarged side view of a component for a human-powered vehicle according to a first modification; Fig. 14 is a partially enlarged side view of a component for a human-powered vehicle according to a second modification; Fig. 15 a side view of a component for a human-powered vehicle according to a third modification; and Fig. Figure 16 shows a side view of a component for a human-powered vehicle according to a fourth modification.

[0022] The embodiments are now described with reference to the accompanying drawings, in which the same reference numerals denote corresponding or identical elements in the different drawings.

[0023] As in Fig. As shown in Figure 1, a human-powered vehicle 2 includes a component for a human-powered vehicle 10 in accordance with one of the embodiments. The human-powered vehicle 2 includes, for example, a crank assembly 4, a rear sprocket assembly 5, a chain 6, a disc brake assembly 7, and a wheel 8. The crank assembly 4 is configured to be rotatably coupled to a vehicle body 2A of the human-powered vehicle 2. The rear sprocket assembly 5 is configured to be rotatably coupled to the vehicle body 2A of the human-powered vehicle 2. The rear sprocket assembly 5 includes a plurality of rear sprockets. The crank assembly 4 is coupled to the rear sprocket assembly 5 via the chain 6. The disc brake assembly 7 includes a disc brake rotor 7A and a disc brake caliper 7B.The disc brake rotor 7A is designed to be rotatably coupled to the vehicle body 2A of the human-propelled vehicle 2. The disc brake rotor 7A, together with the wheel 8, is rotatable relative to the vehicle body 2A. The disc brake caliper 7B is designed to exert a braking force on the disc brake rotor 7A in response to the actuation of a brake actuation device. The wheel 8 includes a hub assembly 8A. The hub assembly 8A is designed to be coupled to the vehicle body 2A. The disc brake rotor 7A is rotatably mounted on the hub assembly 8A.

[0024] In the present embodiment, the crank assembly 4 includes the component for a human-powered vehicle 10. Alternatively, the structure of the component for a human-powered vehicle 10 can also be included in another device such as the rear sprocket assembly 5, the disc brake system 7 and the wheel 8.

[0025] In this application, the term "human-powered vehicle" encompasses a vehicle that moves using a propulsive force that includes at least the human power of a user operating the vehicle. Human-powered vehicles include various types of bicycles, such as mountain bikes, racing bikes, city bikes, cargo bikes, handcycles, and recumbent bikes. Furthermore, human-powered vehicles also include electric bicycles, also known as e-bikes. An e-bike is an electrically assisted bicycle that uses an electric motor to assist the vehicle's propulsion. However, the total number of wheels on a human-powered vehicle is not limited to two. For example, a human-powered vehicle may have one wheel or three or more wheels. In particular, human-powered vehicles do not include vehicles that utilize only one propulsive source.Examples of such a propulsion source include an internal combustion engine and an electric motor. Generally, a light road vehicle that does not require a driver's license for use on public roads is considered a human-powered vehicle.

[0026] In this application, the following directional terms, "front," "back," "forward," "backward," "left," "right," "across," "upward," and "downward," as well as all other similar directional terms, refer to those directions determined based on the user being in the standard user position in the human-propelled vehicle 2, while facing a handlebar or steering mechanism. Examples of the standard user position include a saddle and a seat. Accordingly, these terms, used to describe the component for a human-propelled vehicle 10 or other components, are to be understood in relation to the human-propelled vehicle 2 equipped with the component for a human-propelled vehicle 10 or other components, which is being used in an upright riding position on a horizontal surface.

[0027] As in Fig. As can be seen in Figure 2, the component for a human-powered vehicle 10 has a rotational center axis A1. The rotational center axis A1 defines an axial direction D1, a radial direction, and a circumferential direction D2. The component for a human-powered vehicle 10 is designed to be rotatably coupled to the vehicle body 2A about the rotational center axis A1.

[0028] The crank assembly 4 comprises a crank shaft 12. The crank shaft 12 is designed to be rotatably coupled to the vehicle body 2A of the human-powered vehicle 2 about the central axis of rotation A1. The crank shaft 12 extends along the central axis of rotation A1. The crank shaft 12 includes a first shaft end 12A and a second shaft end 12B. The crank shaft 12 extends between the first shaft end 12A and the second shaft end 12B along the central axis of rotation A1.

[0029] The crank assembly 4 comprises a crank arm 14. The crank arm 14 includes a crank axle mounting section 14A, a pedal axle mounting section 14B, and an arm body 14C. The arm body 14C extends between the crank axle mounting section 14A and the pedal axle mounting section 14B.

[0030] The crank axle assembly section 14A is coupled to the first axle end 12A of the crank axle 12 in a torque-transmitting manner. The crank axle assembly section 14A includes an engagement hole 14H in which the first axle end 12A is at least partially provided. A pedal is rotatably coupled to the pedal axle assembly section 14B. The crank arm 14, together with the crank axle 12, is rotatable relative to the vehicle body 2A about the axis of rotation A1.

[0031] The crank assembly 4 comprises a crank arm 16. The crank arm 16 includes a crank axle mounting section 16A, a pedal axle mounting section 16B, and an arm body 16C. The arm body 16C extends between the crank axle mounting section 16A and the pedal axle mounting section 16B.

[0032] The crank axle assembly section 16A is coupled to the second axle end 12B of the crank axle 12 in a torque-transmitting manner. The crank axle assembly section 16A includes an engagement hole 16H in which the second axle end 12B is at least partially provided. A pedal is rotatably coupled to the pedal axle assembly section 16B. The crank arm 16, together with the crank axle 12, is rotatable relative to the vehicle body 2A about the axis of rotation A1.

[0033] The component for a human-powered vehicle 10, together with the crank axle 12 and the crank arms 14 and 16, is rotatable relative to the vehicle body 2A about the axis of rotation A1. The component for a human-powered vehicle 10 includes an annular rotating component 18 of the human-powered vehicle 2. The annular rotating component 18 includes a front sprocket of the human-powered vehicle 2, a rear sprocket of the human-powered vehicle 2, and a disc brake rotor of the human-powered vehicle 2. In the present embodiment, the annular rotating component 18 includes a front sprocket. Alternatively, the annular rotating component 18 can also include a rear sprocket of the rear sprocket assembly 5 (see, for example, Figure 1). Fig. 1) and the disc brake rotor 7A of the disc brake system 7 (see for example Fig. 1) include.

[0034] As in Fig. As shown in Figure 3, the component for a human-powered vehicle 10 includes a sprocket body 18A. The component for a human-powered vehicle 10 further comprises a plurality of sprocket teeth 18B. The plurality of sprocket teeth 18B are arranged in the circumferential direction D2. The plurality of sprocket teeth 18B extend radially outward from the sprocket body 18A in the radial direction with respect to the axis of rotation A1. The plurality of sprocket teeth 18B are configured to engage with the chain 6 of the human-powered vehicle 2.

[0035] The sprocket body 18A contains in the Fig. In the embodiment shown in Figure 3, the outer section 18C comprises an outer section 18C, an inner section 18D, and a coupling section 18E. The outer section 18C is annular and extends in the circumferential direction D2. The plurality of sprocket teeth 18B extends radially outward from the outer section 18C. The inner section 18D is annular and extends in the circumferential direction D2. The inner section 18D is arranged radially inside the outer section 18C.

[0036] The coupling section 18E couples the outer section 18C and the inner section 18D and is provided radially between the outer section 18C and the inner section 18D. In the present embodiment, the coupling section 18E includes coupling arms 18F, 18G, 18H and 18K. The coupling arms 18F, 18G, 18H and 18K extend between the outer section 18C and the inner section 18D in the radial direction.

[0037] The component for a human-powered vehicle 10 comprises a splined section 20. The splined section 20 includes a plurality of splined teeth 22. In the present embodiment, the splined section 20 includes an annular part 23. The annular part 23 is arranged radially inside the inner section 18D in the radial direction. The plurality of splined teeth 22 extend radially inward from the annular part 23 in the radial direction. The plurality of splined teeth 22 are arranged in the circumferential direction D2. The plurality of sprocket teeth 18B are arranged radially outside the splined section 20 in the radial direction. The splined section 20 is arranged radially inside the plurality of sprocket teeth 18B in the radial direction.

[0038] As in Fig. As can be seen in Figure 4, the multitude of wedge teeth 22 of the splined section 20 are formed, with one of the crank arm 14 (see, for example, Fig. 2), the crank axle 12 (see for example Fig. 2) and the hub assembly 8A (see, for example, Fig. 1) to engage. In the present embodiment, the plurality of splined teeth 22 of the splined section 20 are configured to engage with the crank arm 14. Alternatively, the plurality of splined teeth 22 of the splined section 20 can be configured to engage with the crank shaft 12 when the component for a human-powered vehicle 10 is included in the crank assembly 4. The plurality of splined teeth 22 of the splined section 20 can be configured to engage with the hub assembly 8A (see, for example, [reference]). Fig. 1) to be engaged when the component for a human-powered vehicle 10 is in the rear sprocket assembly 5 (see, for example, Fig. 1) or the disc brake system 7 (see for example Fig. 1) is included.

[0039] The crank arm 14 incorporates a plurality of additional splined teeth 24. These additional splined teeth 24 extend radially outward from the crank axle mounting section 14A. The crank arm 14 can also be referred to as an additional component 14. In an assembled state, where the component for a human-powered vehicle 10 is mounted on the human-powered vehicle 2, the plurality of splined teeth 22 are configured to engage with the plurality of additional splined teeth 24 of the additional component 14 in a torque-transmitting manner. The plurality of splined teeth 22 are configured to interlock with the plurality of additional splined teeth 24 of the additional component 14 to receive a rotational force (e.g., a pedaling torque) from the crank arm 14.

[0040] In a case where the plurality of splined teeth 22 of the splined section 20 are configured to engage with the crankshaft 12, the crankshaft 12 can also be referred to as an additional component 12. In such modifications, the crankshaft 12 includes a plurality of additional splined teeth 24. The plurality of splined teeth 22 are configured, in an assembled state where the component for a human-powered vehicle 10 is mounted to the human-powered vehicle 2, to engage with the plurality of additional splined teeth 24 of the additional component 12 in a torque-transmitting manner.

[0041] As in Fig. As shown in Figure 5, the crank assembly 4 includes a locking element 26. The locking element 26 is designed to fasten the component for a human-powered vehicle 10 to at least one of the crank axis 12 and the crank arm 14. The locking element 26 is designed to prevent movement of the component for a human-powered vehicle 10 relative to at least one of the crank axis 12 and the crank arm 14 in the axial direction D1.

[0042] As in Fig. As can be seen in Figure 6, the splined section 20 is designed to bear directly or indirectly against the locking element 26 in the axial direction D1 when assembled. In the present embodiment, the crank assembly 4 includes an intermediate element 28. The intermediate element 28 has, for example, an annular shape. The intermediate element 28 is positioned at least partially in the axial direction D1 between the splined section 20 and the locking element 26. The intermediate element 28 is deformable depending on the shape of the splined section 20 and the locking element 26. Specifically, the splined section 20 is designed to bear indirectly against the locking element 26 in the axial direction D1 when assembled. Alternatively, the intermediate element 28 can be omitted from the crank assembly 4.The splined section 20 can be configured to bear directly against the locking element 26 in the axial direction D1 when assembled. The intermediate element 28 is, for example, a washer made of a metallic or non-metallic material.

[0043] In the present embodiment, the component for a human-powered vehicle 10 is made of a metallic material such as aluminum, iron, or titanium. The locking element 26 is made of a metallic material such as aluminum or titanium. The intermediate element 28 is made of a metallic material such as iron, in particular stainless steel.

[0044] The locking element 26 comprises a tubular section 30, a flanged section 32, and an externally threaded section 34. The flanged section 32 extends radially outward from the tubular section 30. The tubular section 30 extends axially from the flanged section 32 in the direction D1. The externally threaded section 34 is provided on an outer surface of the tubular section 30.

[0045] The crank arm 14 includes an internally threaded section 36. The externally threaded section 34 is designed to engage the internally threaded section 36. The splined section 20 is held axially in the direction D1 between the crank arm 14 and the locking element 26 when the locking element 26 is attached to the crank arm 14 by means of the externally threaded section 34 and the internally threaded section 36. The splined section 20 is also held axially in the direction D1 between the crank arm 14 and the flange section 32 when the locking element 26 is attached to the crank arm 14 by means of the externally threaded section 34 and the internally threaded section 36.

[0046] The crank assembly 4 includes an additional intermediate element 38. In the state where the locking element 26 is attached to the crank arm 14 with the external threaded section 34 and the internal threaded section 36, the additional intermediate element 38 is held in the axial direction D1 between the crank arm 14 and the splined section 20. The additional intermediate element 38 can be omitted from the crank assembly 4.

[0047] As in Fig. As shown in Figure 7, the crank arm 14 includes an internal toothing 40. The internal toothing 40 defines the engagement hole 14H. The crank axle 12 includes an external toothing 42. The internal toothing 40 is designed to engage with the external toothing 42 in order to transmit a rotational force (for example, a pedaling torque) from the crank arm 14 to the crank axle 12. The component for a human-powered vehicle 10, the crank axle 12, the crank arm 14, and the locking element 26 rotate together around the axis of rotation A1.

[0048] As in Fig. As shown in Figure 6, the crank axle 12 incorporates a stopper 44. The stopper 44 is designed to prevent movement of the crank arm 14 relative to the crank axle 12 in a first axial direction D11. The stopper 44 is located at one axial end of the external toothing 42. The stopper 44 can come into contact with the internal toothing 40.

[0049] As in the Fig. 8 and Fig. As shown in Figure 9, the component for a human-powered vehicle 10 comprises a plurality of knurled projections 50. The plurality of knurled projections 50 are provided on the splined section 20 such that they project from the splined section 20 in the axial direction D1. The plurality of knurled projections 50 are integrally formed with the splined section 20 as a single, unified element. Alternatively, at least one of the plurality of knurled projections 50 can be partially separate from the splined section 20.

[0050] As in Fig. As can be seen in Figure 8, the multitude of knurled projections 50 extend radially along the splined section 20. The multitude of knurled projections 50 are arranged circumferentially D2 such that they are spaced apart from one another.

[0051] The plurality of knurled projections 50 have a total number of projections. The total number of projections is the total number of the plurality of knurled projections 50. The total number of projections of the plurality of knurled projections 50 ranges from 10 to 50. The total number of projections of the plurality of knurled projections 50 is one of 40, 36, and 20. In the present embodiment, the total number of projections of the plurality of knurled projections 50 is 40. The total number of projections is not limited to the embodiment shown. As in Fig. As can be seen in figure 13, the total number of knurled protrusions can be, for example, 36, if it is 50. As shown in Fig. As can be seen in 14, the total number of knurled protrusions can be, for example, 20.

[0052] As in the Fig. 8, Fig. 13 and Fig. As can be seen in Figure 14, one or two of the multiple knurled projections 50 are arranged on each of the multiple wedge teeth 22. As shown in Figure 14, one or two of the multiple knurled projections 50 are arranged on each of the multiple wedge teeth 22. Fig. As can be seen in Figure 8, two of the multiple knurled projections 50 are arranged on each of the multiple wedge teeth 22. As shown in Fig. As can be seen in Figure 13, one or two of the multiple knurled projections 50 can be arranged on each of the multiple wedge teeth 22. As shown in Fig. As can be seen in Figure 14, one of the multiple knurled projections 50 can be arranged on each of the multiple wedge teeth 22.

[0053] As in the Fig. 8, Fig. 13 and Fig. As can be seen in Figure 14, each of the plurality of knurled projections 50 is provided on the annular part 23 and one of the plurality of wedge teeth 22. Each of the plurality of knurled projections 50 extends from a radially outer section of the annular part 23 to a radially inner edge of one of the plurality of wedge teeth 22.

[0054] As in Fig. As can be seen in Figure 10, each of the plurality of knurled projections 50 has a projection reference line RL. Each of the plurality of knurled projections 50 includes a radially outermost circumferential center 50A. The projection reference line RL is defined such that it passes through the rotational center axis A1 and the radially outermost circumferential center 50A of each of the plurality of knurled projections 50.

[0055] As in Fig. As shown in Figure 8, the component for a human-powered vehicle 10 comprises a plurality of knurled angles PA. The plurality of knurled angles PA are defined between the knurled reference line RL of one of the plurality of knurled projections 50 and the knurled reference line RL of an adjacent knurled projection 50 in the circumferential direction D2. The knurled projection 50 and its adjacent knurled projection 50 lie adjacent to each other in the circumferential direction D2, without any further knurled projection between them.

[0056] The plurality of leading angles PA includes a first leading angle PA1 and a second leading angle PA2. The second leading angle PA2 differs from the first leading angle PA1. The plurality of leading angles PA includes a third leading angle PA3. The third leading angle PA3 differs from each of the first leading angle PA1 and the second leading angle PA2. The plurality of leading angles PA includes a fourth leading angle PA4. The fourth leading angle PA4 differs from each of the first leading angle PA1, the second leading angle PA2, and the third leading angle PA3. Alternatively, the fourth leading angle PA4 can correspond to at least one of the first leading angle PA1, the second leading angle PA2, and the third leading angle PA3.The third protrusion angle PA3 can correspond to at least one of the first protrusion angle PA1 and the second protrusion angle PA2. The second protrusion angle PA2 can correspond to the first protrusion angle PA1.

[0057] As in Fig. As can be seen in Figure 11, the multitude of knurled projections 50 each have a tightening flank 52 and a non-tightening flank 54, which is opposite to the tightening flank 52 in the circumferential direction D2. The tightening flank 52 is smoother than the non-tightening flank 54. This is because the multitude of knurled projections 50 each have an asymmetrical cross-section along the circumferential direction D2. Alternatively, the multitude of knurled projections 50 can each have a symmetrical cross-section along the circumferential direction D2.

[0058] The tightening flank 52 has a concave shape. The non-tightening flank 54 also has a concave shape. The tightening flank 52 has a first maximum inclination angle AG1, defined with respect to the circumferential direction D2. The non-tightening flank 54 has a second maximum inclination angle AG2, defined with respect to the circumferential direction D2. The first maximum inclination angle AG1 is smaller than the second maximum inclination angle AG2.

[0059] The tightening flank 52 has a first radius of curvature R1. The non-tightening flank 54 has a second radius of curvature R2. The first radius of curvature R1 is larger than the second radius of curvature R2. The tightening flank 52 is formed, for example, by machining with a first end mill. The non-tightening flank 54 is formed by machining with a second end mill. The first end mill has a radius of curvature that differs from the radius of curvature of the second end mill. The radius of curvature of the first end mill corresponds to the first radius of curvature R1. The radius of curvature of the second end mill corresponds to the second radius of curvature R2.

[0060] Each of the multiple knurled projections 50 has a circumferential width W1. The circumferential width W1 is defined in the circumferential direction D2 between a circumferential end 52E of the tightening flank 52 and a circumferential end 54E of the non-tightening flank 54. As in Fig. As can be seen in Figure 11, the radially outermost circumferential center 50A is defined such that it halves the circumferential width W1 seen in the axial direction D1.

[0061] As in Fig. As shown in Figure 12, the locking element 26 includes a plurality of locking knurled projections 60. The plurality of locking knurled projections 60 are provided on the flange section 32 such that they project from the flange section 32 in the axial direction D1. At least one of the plurality of locking knurled projections 60 extends in the radial direction with respect to the axis of rotation A1. The plurality of locking knurled projections 60 are arranged in the circumferential direction D2. The plurality of locking knurled projections 60 has a total number of locking projections, which is the total number of the plurality of locking knurled projections 60.

[0062] As in Fig. As can be seen in Figure 6, the flange section 32 is configured to face the splined section 20 in the axial direction D1. The plurality of locking knurled projections 60 are configured to be provided, at least partially, in the axial direction D1 between the splined section 20 and the flange section 32. The plurality of knurled projections 50 of the component for a human-powered vehicle 10 are configured to be provided, at least partially, in the axial direction D1 between the splined section 20 and the flange section 32.

[0063] The plurality of knurled projections 50 are designed to bear directly or indirectly against the plurality of locking knurled projections 60 provided on the locking element 26 in the assembled state. The intermediate element 28 is provided at least partially in the axial direction D1 between the splined section 20 and the flange section 32. The intermediate element 28 is provided at least partially in the axial direction D1 between at least one of the plurality of knurled projections 50 and at least one of the plurality of locking knurled projections 60. The intermediate element 28 is deformable depending on the shapes of the plurality of knurled projections 50 and the plurality of locking knurled projections 60.

[0064] As in the Fig. 8 and Fig. As can be seen in Figure 12, the total number of projections of the plurality of knurled projections 50 is less than the total number of locking projections of the plurality of locking knurled projections 60 of the locking element 26. The total number of projections of the plurality of knurled projections 50 is less than half the total number of locking projections of the plurality of locking knurled projections 60 of the locking element 26. Alternatively, the total number of projections can be greater than or equal to the total number of locking projections of the plurality of locking knurled projections 60 of the locking element 26. The total number of projections of the plurality of knurled projections 50 can be greater than or equal to half the total number of locking projections of the plurality of locking knurled projections 60 of the locking element 26.

[0065] As in Fig. As can be seen in Figure 5, when the locking element 26 is tightened, it rotates in a first circumferential direction D21 relative to the component for a human-powered vehicle 10. When the locking element 26 is loosened, it rotates in a second circumferential direction D22 relative to the component for a human-powered vehicle 10. The second circumferential direction D22 is opposite to the first circumferential direction D21.

[0066] As in Fig. As can be seen in Figure 11, the tightening flank 52 is provided in the first circumferential direction D21 on an upstream side of the non-tightening flank 54. The non-tightening flank 54 is provided in the second circumferential direction D22 on the upstream side of the tightening flank 52. A first rotational resistance is generated between the human-powered vehicle component 10 and the locking element 26 by the plurality of knurled projections 50 and the plurality of locking knurled projections 60 when the locking element 26 is rotated relative to the human-powered vehicle component 10 in the first circumferential direction D21.A second rotational resistance is generated by the multitude of knurled projections 50 and the multitude of locking knurled projections 60 between the human-powered vehicle component 10 and the locking element 26 when the locking element 26 is rotated relative to the human-powered vehicle component 10 in the second circumferential direction D22. The first rotational resistance is less than the second rotational resistance. Thus, the multitude of knurled projections 50 reliably prevents the locking element 26 from disengaging in the second circumferential direction D22.

[0067] As in the Fig. 15 and Fig. As can be seen in Figure 16, the splined section 20 and the plurality of knurled projections 50 can also be applied to other devices such as the rear sprocket 5A of the rear sprocket assembly 5 and the disc brake rotor 7A. Each of the Fig. 13 and Fig. The 14 modifications shown can be applied to any of the modifications in the Fig. 15 and Fig. 16 are applied.

[0068] In the present application, the term "comprise" and its derivatives, as used herein, are to be understood as open terms that specify the presence of the indicated features, elements, components, groups, integers, and / or steps, but do not exclude the presence of other unspecified features, elements, components, groups, integers, and / or steps. This concept also applies to words with similar meanings, for example, the terms "have," "include," and their derivatives.

[0069] The terms “element”, “section”, “part”, “body” and “structure”, when used in the singular, can have the dual meaning of a single part or a multitude of parts.

[0070] The ordinal numbers such as "first(s)" and "second(s)" mentioned in the present application are merely identifiers and have no further meaning, such as indicating a specific order or anything similar. Furthermore, the term "first element," for example, does not in itself imply the existence of a "second element," and the term "second element" does not in itself imply the existence of a "first element."

[0071] The term “pair of”, as used here, can include the configuration in which the pair of elements has different shapes or structures from each other, in addition to the configuration in which the pair of elements has the same shapes or structures as each other.

[0072] The terms “one”, “one or more” and “at least one” can be used interchangeably here.

[0073] The phrase “at least one of,” as used in this disclosure, means “one or more” of a desired choice. For example, the phrase “at least one of,” as used in this disclosure, means “only a single choice” or “both of two choices” when the number of choices is two. Another example: The expression “at least one of,” as used in this disclosure, means “only a single choice” or “any combination of two or more choices” when the number of choices is three or more. For example, the expression “at least one of A and B” includes (1) A alone, (2) B alone, and (3) both A and B.The expression “at least one of A, B and C” includes (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 A, B and C. In other words, the phrase “at least one of A and B” in this revelation does not mean “at least one of A and at least one of B”.

[0074] Finally, terms such as "essentially," "about," and "approximately," as used here, signify a reasonable deviation from the modified term, such that the final result is not substantially altered. All numerical values ​​described in this application can be understood as including terms such as "essentially," "about," and "approximately."

[0075] Naturally, numerous modifications and variations of the present invention are possible in light of the above teachings. It therefore goes without saying that the invention can also be implemented differently than specifically described here, within the scope of the attached claims. REFERENCE MARK 2 human-powered vehicles 2A Vehicle body 4 Crank assembly 5 Sprocket assembly 5A rear sprocket 6 chain 7 disc brake system 7A disc brake rotor 7B Disc brake caliper 8 wheel 8A Hub assembly 10 components for a human-powered vehicle 12 Crank axle (additional component) 12A first axle end 12B second axis end 14 Crank arm (additional component) 14A Crank axle assembly section 14B Pedal axle assembly section 14C Arm Body 14H access hole 16 crank arm 16A Crank axle assembly section 16B Pedal axle assembly section 16C Arm Body 16H access hole 18 ring-shaped rotational component 18A Sprocket body 18B sprocket teeth 18C outer section 18D inner section 18E Coupling section 18F to 18K coupling arms 20 wedge-shaped section 22 wedge teeth 23 ring-shaped part 24 additional wedge teeth 26 Locking element 28 Intermediate element 30 tubular section 32 Flange section 34 External thread section 36 Internal thread section 38 additional intermediate element 40 internal teeth 42 External teeth 44 stoppers 50 knurled protrusions 50A radial outermost circumferential center 52 Tightening flank 52E End of circumference 54 Non-tightening flank 54E End of circumference 60 locking knurled protrusions A1 Rotation center axis AG1 first maximum tilt angle AG2 second maximum tilt angle D1 axial direction D11 first axial direction D2 circumferential direction D21 first circumferential direction D22 second circumferential direction PA Protrusion Angle PA1 first angle of advantage PA2 second angle of advantage PA3 third angle of advantage PA4 fourth angle of advantage R1 first radius of curvature R2 second radius of curvature RL lead reference line W1 circumference width

Claims

[1] Component for a human-powered vehicle (10) having a rotational center axis (A1) defining an axial direction (D1), a radial direction and a circumferential direction (D2), wherein the component for a human-powered vehicle (10) comprises: a splined section (20) comprising a plurality of splined teeth (22) configured to engage in a torque-transmitting manner with a plurality of additional splined teeth (24) of an additional component (12, 14) in an assembled state in which the component for a human-powered vehicle (10) is mounted on the human-powered vehicle (2), wherein the splined section (20) is configured to bear directly or indirectly against a locking element (26) in the axial direction (D1) in the assembled state; and a plurality of knurled projections (50) provided on the splined section (20) such that they project in the axial direction (D1) from the splined section (20), wherein the plurality of knurled projections (50) are designed to bear directly or indirectly against a plurality of locking knurled projections (60) provided on the locking element (26) in the assembled state, wherein the plurality of knurled projections (50) have a total number of projections which is less than a total number of locking projections of the plurality of locking knurled projections (60) of the locking element (26). [2] Component for a human-powered vehicle (10) having a rotational center axis (A1) defining an axial direction (D1), a radial direction and a circumferential direction (D2), wherein the component for a human-powered vehicle (10) comprises: a splined section (20) comprising a plurality of splined teeth (22) configured to engage in a torque-transmitting manner with a plurality of additional splined teeth (24) of an additional component (12, 14) in an assembled state in which the component for a human-powered vehicle (10) is mounted on the human-powered vehicle (2), wherein the splined section (20) is configured to bear directly or indirectly against a locking element (26) in the axial direction (D1) in the assembled state; a plurality of knurled projections (50) provided on the splined section (20) such that they project in the axial direction (D1) from the splined section (20), wherein the plurality of knurled projections (50) are designed to bear directly or indirectly against a plurality of locking knurled projections (60) provided on the locking element (26) in the assembled state; and wherein one or two of the plurality of knurled projections (50) are arranged on each of the plurality of wedge teeth (22). [3] Component for a human-powered vehicle (10) having a rotational center axis (A1) defining an axial direction (D1), a radial direction and a circumferential direction (D2), wherein the component for a human-powered vehicle (10) comprises: a splined section (20) comprising a plurality of splined teeth (22) configured to engage in a torque-transmitting manner with a plurality of additional splined teeth (24) of an additional component (12, 14) in an assembled state in which the component for a human-powered vehicle (10) is mounted on the human-powered vehicle (2), wherein the splined section (20) is configured to bear directly or indirectly against a locking element (26) in the axial direction (D1) in the assembled state; a plurality of knurled projections (50) provided on the splined section (20) such that they project in the axial direction (D1) from the splined section (20), wherein the plurality of knurled projections (50) are designed to bear directly or indirectly against a plurality of locking knurled projections (60) provided on the locking element (26) in the assembled state, wherein each of the plurality of knurled projections (50) has a projection reference line (RL) defined such that it passes through the rotation center axis (A1) and a radially outermost circumferential center (50A) of each of the plurality of knurled projections (50); wherein a plurality of protrusion angles (PA) are defined between a protrusion reference line (RL) of one of the plurality of knurled protrusions (50) and a protrusion reference line (RL) of an adjacent one of the plurality of knurled protrusions (50) in the circumferential direction (D2); wherein one of the multiple knurled projections (50) and the adjacent one of the multiple knurled projections (50) are located next to each other in the circumferential direction (D2), without any further protrusion between one of the multitude of knurled projections (50) and the adjacent one of the multitude of knurled projections (50); and where the plurality of leading angles (PA) includes a first leading angle (PA1) and include a second angle of advantage (PA2) that differs from the first angle of advantage (PA1). [4] Component for a human-powered vehicle (10) according to one of claims 1 to 3, wherein the multitude of knurled projections (50) extend in the radial direction on the splined section (20). [5] Component for a human-powered vehicle (10) according to one of claims 1 to 4, wherein the plurality of knurled projections (50) are arranged in the circumferential direction (D2) such that they are spaced apart from each other. [6] Component for a human-powered vehicle (10) according to any one of claims 1 to 5, wherein the total number of projections of the plurality of knurled projections (50) is less than half the total number of locking projections of the plurality of locking knurled projections (60) of the locking element (26). [7] Component for a human-powered vehicle (10) according to claim 3, wherein the plurality of protrusion angles (PA) includes a third protrusion angle (PA3) which differs from each of the first protrusion angle (PA1) and the second protrusion angle (PA2). [8] Component for a human-powered vehicle (10) according to claim 7, wherein the plurality of protrusion angles (PA) includes a fourth protrusion angle (PA4) which differs from each of the first protrusion angle (PA1), the second protrusion angle (PA2) and the third protrusion angle (PA3). [9] Component for a human-powered vehicle (10) according to any one of claims 1 to 8, wherein the total number of projections of the plurality of knurled projections (50) is one of 40, 36 and 20. [10] Component for a human-powered vehicle (10) according to any one of claims 1 to 9, wherein the component for a human-powered vehicle (10) includes an annular rotational component (18) of a human-powered vehicle (2). [11] Component for a human-powered vehicle (10) according to claim 10, wherein the annular rotational component (18) comprises a front sprocket of the human-powered vehicle (2), a rear sprocket (5A) of the human-powered vehicle (2) and a disc brake rotor (7A) of the human-powered vehicle (2). [12] Component for a human-powered vehicle (10) according to any one of claims 1 to 11, further comprising: a plurality of sprocket teeth (18B) arranged radially outside the splined section (20) in the radial direction. [13] Component for a human-powered vehicle (10) according to one of claims 1 to 12, wherein the plurality of wedge teeth (22) of the wedge-toothed section (20) are designed to engage with a crank arm (14), a crank axle (12) and a hub assembly (8A). [14] Component for a human-powered vehicle (10) according to any one of claims 1 to 13, wherein the multiple knurled projections (50) each have a tightening flank (52) and a non-tightening flank (54) which is opposite to the tightening flank (52) in the circumferential direction (D2), and the tightening flank (52) is smoother than the non-tightening flank (54). [15] Component for a human-powered vehicle (10) according to one of claims 1 to 14, wherein the plurality of knurled projections (50) each have an asymmetric cross-section along the circumferential direction (D2).

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