Bicycle multi-chainring arrangement

Abstract

Bicycle multi-chainwheel assembly comprising a rotational center axis (C1) and the bicycle multi-chainwheel assembly: a sprocket support link (40) made from a single metallic plate, wherein each section of the sprocket support link (40) is formed by deforming the single metallic plate; the sprocket support link (40) includes a first sprocket mounting section (42), a second sprocket mounting section (43) which is spaced apart from the first sprocket mounting section (42) in an axial direction parallel to the axis of rotation (C1), and a first connecting section (46) which connects the first sprocket mounting section (42) and the second sprocket mounting section (43); the first sprocket mounting section (42) has a first bicycle-inward directed surface (42e) and a first bicycle-outward directed surface (42d), opposite the first bicycle-inward directed surface (42e) in the axial direction; the second sprocket mounting section (43) has a second bicycle-inward directed surface (43e) and a second bicycle-outward directed surface (43d), opposite the second bicycle-inward directed surface (43e) in the axial direction; a first sprocket (51) comprising a first sprocket body (51a) and a plurality of first sprocket teeth (51b) extending radially outwards from the first sprocket body (51a) with respect to the axis of rotation (C1), wherein the first sprocket (51) is a separate link from the sprocket support link (40), the first sprocket body (51a) is coupled to a first bicycle-inward directed surface (42e) of the first sprocket mounting section (42) and the first bicycle-outward directed surface (42d) of the first sprocket mounting section (42); a second sprocket (52) including a second sprocket body (52a) and a plurality of second sprocket teeth (52b) extending radially outwards from the second sprocket body (52a) with respect to the axis of rotation (C1), wherein the second sprocket (52) is a separate link from the sprocket support link (40), the second sprocket body (52a) being coupled to the other by the first bicycle-inward directed surface (42e) of the first sprocket mounting section (42) and the first bicycle-outward directed surface (42d) of the first sprocket mounting section (42); a third sprocket (53) comprising a third sprocket body (53a) and a plurality of third sprocket teeth (53b) extending radially outwards from the third sprocket body (53a) with respect to the axis of rotation (C1), wherein the third sprocket (53) is a separate link from the sprocket support link (40), the third sprocket body (53a) is coupled to a second bicycle-inward facing surface (43e) of the second sprocket mounting section (43) and the second bicycle-outward facing surface (43d) of the second sprocket mounting section (43); and a fourth sprocket (54) comprising a fourth sprocket body (54a) and a plurality of fourth sprocket teeth (54b) extending radially outwards from the fourth sprocket body (54a) with respect to the axis of rotation (C1), wherein the fourth sprocket (54) is a separate link from the sprocket support link (40), the fourth sprocket body (54a) is coupled to the other by the second bicycle-inward facing surface (43e) of the second sprocket mounting section (43) and the second bicycle-outward facing surface (43d) of the second sprocket mounting section (43); and wherein the first sprocket body (51a) is coupled to the first bicycle-inward facing surface (42e) of the first sprocket mounting section (42); and the second sprocket body (52a) is / will be coupled to the first bicycle-outward directed surface (42d) of the first sprocket mounting section (42).

Description

BACKGROUND Technical area

[0001] The technology disclosed herein relates to a bicycle multi-chainring arrangement. Background information

[0002] A conventional rear multiple sprocket arrangement is disclosed in European patent application EP 1 407 962 A1. The conventional multiple sprocket arrangement comprises a plurality of sprocket support links and a plurality of rear sprockets.

[0003] The multiple sprocket support links support the multiple rear sprockets. These support links are arranged side-by-side in a row along the axial direction. Each support link is mounted to a rear hub assembly and rotates integrally with the rear hub shell and the sprocket mounting section of the rear hub assembly. In other words, the multiple rear sprockets rotate integrally with the rear hub shell and the sprocket mounting section via the support links.

[0004] In the above configuration of the multi-sprocket assembly, since the number of rear sprockets tends to increase, the number of sprocket mounting links also increases. As a result, the weight of the multi-sprocket assembly and the number of parts within it increase.

[0005] US 4 044 621 A describes a device that is particularly advantageous for use as part of a bicycle or other chain drive assembly, which has a single plate shaped to accommodate a plurality of drive sprockets.

[0006] US 4 642 075 A describes a multi-sprocket used as a unit in a two-wheeled vehicle and for a multi-speed transmission without the need to separate a chain guard from a multitude of sprockets.

[0007] US 2011 / 0 130 233 A1 describes a bicycle chainring carrier arrangement comprising a chainring carrier body, a first chainring carrier element and at least a first and a second chainring.

[0008] Accordingly, there is a need to reduce the weight of the multiple sprocket assembly and to improve the production efficiency of the multiple sprocket assembly.

[0009] Taking this problem into account, it is an object of the present invention to provide a multiple sprocket arrangement that is capable of reducing weight and improving production efficiency. Summary

[0010] According to a first aspect of the present invention, a multiple sprocket assembly has a central axis of rotation. The multiple sprocket assembly comprises a sprocket support link and a first sprocket.

[0011] The sprocket support link is manufactured from a single metal plate. The sprocket support link includes a first sprocket mounting section, a second sprocket mounting section, and a first connecting section.

[0012] The second sprocket mounting section is spaced from the first sprocket mounting section in an axial direction parallel to the axis of rotation. The first connecting section links the first sprocket mounting section and the second sprocket mounting section.

[0013] The first sprocket mounting section has a first bicycle-inward directed surface and a first bicycle-outward directed surface, opposite or opposite to the first bicycle-inward directed surface in the axial direction.

[0014] The second sprocket mounting section has a second bicycle-inward directed surface and a second bicycle-outward directed surface, opposite or standing in axial direction to the second bicycle-inward directed surface.

[0015] The first sprocket comprises a first sprocket body and a plurality of first sprocket teeth, which extend radially outwards from the first sprocket body of the axis of rotation.

[0016] The first sprocket is a separate link from the sprocket support link. The first sprocket body is coupled to the first bicycle-inward facing surface of the first sprocket mounting section and the first bicycle-outward facing surface of the first sprocket mounting section.

[0017] In a bicycle multi-chainwheel arrangement, the chainring support link, which is made from a single metallic plate, supports the rear chainrings according to the number of rear chainrings.

[0018] This allows the bicycle multi-chainring assembly to reduce weight and improve production efficiency, as the number of chainring mounting links is reduced and the chainring connecting link is simplified. Furthermore, the bicycle multi-chainring assembly can selectively improve the flexibility of a material, since the chainring support link is a separate link from the chainrings.

[0019] According to a second aspect of the present invention, the bicycle multiple chain wheel arrangement according to the first aspect is designed as follows.

[0020] The bicycle multi-chainring arrangement further includes a second chainring, a third chainring and a fourth chainring.

[0021] The second sprocket comprises a second sprocket body and a plurality of second sprocket teeth, which extend radially outward from the second sprocket body with respect to the axis of rotation. The second sprocket is a separate link from the sprocket support link. The second sprocket body is coupled to the other side of the first bicycle-inward facing surface of the first sprocket mounting section and the first bicycle-outward facing surface of the first sprocket mounting section.

[0022] The third sprocket comprises a third sprocket body and a plurality of third sprocket teeth extending radially outward from the third sprocket body with respect to the axis of rotation. The third sprocket is a separate link from the sprocket support link. The third sprocket body is coupled to the second inward-facing surface of the second sprocket mounting section and the second outward-facing surface of the second sprocket mounting section.

[0023] The fourth sprocket comprises a fourth sprocket body and a plurality of fourth sprocket teeth extending radially outward from the fourth sprocket body with respect to the axis of rotation. The fourth sprocket is a separate link from the sprocket support link. The fourth sprocket body is coupled to the other side of the second inward-facing surface of the second sprocket mounting section and the second outward-facing surface of the second sprocket mounting section.

[0024] In a bicycle multi-chainring arrangement, the chainring support link, which is made from a single metal plate, supports the first four rear sprockets. This allows the bicycle multi-chainring arrangement, with at least four speed settings, to reduce weight and improve production efficiency.

[0025] According to a third aspect of the present invention, the bicycle multiple chain wheel arrangement according to the second aspect can be designed as follows.

[0026] The sprocket support link further includes a third sprocket mounting section and a second connecting section. The third sprocket mounting section is axially spaced from the second sprocket mounting section. The second connecting section connects the second sprocket mounting section and the third sprocket mounting section.

[0027] The third sprocket mounting section has a third bicycle-inward directed surface and a third bicycle-outward directed surface, opposite or standing opposite the third bicycle-inward directed surface in the axial direction.

[0028] The bicycle multi-chainring assembly further comprises a fifth sprocket and a sixth sprocket. The fifth sprocket includes a fifth sprocket body and a plurality of fifth sprocket teeth extending radially outward from the fifth sprocket body with respect to the axis of rotation. The fifth sprocket is a separate link from the sprocket support link. The fifth sprocket body is coupled to the third bicycle-inward facing surface of the third sprocket mounting section and the third bicycle-outward facing surface of the sprocket mounting section.

[0029] The sixth sprocket comprises a sixth sprocket body and a plurality of sixth sprocket teeth extending radially outward from the sixth sprocket body with respect to the axis of rotation. The sixth sprocket is a separate link from the sprocket support link. The sixth sprocket body is coupled to the other of the third inward-facing surface and the third outward-facing surface of the third sprocket mounting section.

[0030] In a bicycle multi-chainring assembly, the chainring support link, which is made from a single metal plate, supports the first through sixth rear sprockets. This allows the bicycle multi-chainring assembly, with at least six speed settings, to reduce weight while improving production efficiency.

[0031] According to a fourth aspect of the present invention, the bicycle multiple chain wheel arrangement according to the third aspect can be designed as follows.

[0032] The sprocket support link further includes a fourth sprocket mounting section and a third connecting section. The fourth sprocket mounting section is axially spaced from the third sprocket mounting section. The third connecting section connects the third sprocket mounting section and the fourth sprocket mounting section.

[0033] The fourth sprocket mounting section has a fourth bicycle-inward directed surface and a fourth bicycle-outward directed surface, opposite or standing opposite the fourth bicycle-inward directed surface in the axial direction.

[0034] The bicycle multi-chainring assembly further comprises a seventh and an eighth sprocket. The seventh sprocket includes a seventh sprocket body and a plurality of seventh sprocket teeth, which extend radially outwards from the seventh sprocket body with respect to the axis of rotation.

[0035] The seventh sprocket is a separate link from the sprocket support link. The seventh sprocket body is coupled to the fourth inward-facing surface of the fourth sprocket mounting section and the fourth outward-facing surface of the fourth sprocket mounting section.

[0036] The eighth sprocket includes an eighth sprocket body and a plurality of eighth sprocket teeth, which extend radially outwards from the eighth sprocket body with respect to the axis of rotation.

[0037] The eighth sprocket is a separate link from the sprocket support link. The eighth sprocket body is coupled to the other of the fourth bicycle-inward facing surface of the fourth sprocket mounting section and the fourth bicycle-outward facing surface of the fourth sprocket mounting section.

[0038] In a bicycle multi-chainring setup, the chainring support link, which is made from a single metal plate, supports the first through eight rear sprockets. This allows the bicycle multi-chainring setup, with at least eight speed settings, to reduce weight and improve production efficiency.

[0039] According to a fifth aspect of the present invention, the bicycle multiple chain wheel arrangement can be designed according to the second to fourth aspects as follows.

[0040] At least one part of the first sprocket mounting section is arranged radially outside the second sprocket mounting section with respect to the axis of rotation.

[0041] The first sprocket has a first total number of teeth. The first sprocket is coupled to the first inward-facing surface of the first sprocket mounting section. The second sprocket has a second total number of teeth, which is less than the first total number of teeth. The second sprocket body is coupled to the first outward-facing surface of the first sprocket mounting section.

[0042] The third sprocket has a third total number of teeth, which is less than the second total number of teeth. The third sprocket body is coupled to the second inward-facing surface of the second sprocket mounting section. The fourth sprocket has a fourth total number of teeth, which is less than the third total number of teeth. The fourth sprocket body is coupled to the second outward-facing surface of the second sprocket mounting section.

[0043] This allows the bicycle multi-chainring assembly with at least four speed levels to reduce weight and improve production efficiency. The bicycle multi-chainring assembly with at least four speed levels can also offer a wide gear ratio range.

[0044] According to a sixth aspect of the present invention, the bicycle multiple chain wheel arrangement according to the third aspect can be designed as follows.

[0045] At least one part of the second sprocket mounting section is arranged radially outwards from the third sprocket mounting section with respect to the axis of rotation.

[0046] The fifth sprocket has a fifth set of teeth, which is fewer than the fourth set of teeth. The fifth sprocket body is coupled to the third inward-facing surface of the third sprocket mounting section. The sixth sprocket has a sixth set of teeth, which is fewer than the fifth set of teeth. The sixth sprocket body is coupled to the third outward-facing surface of the third sprocket mounting section.

[0047] This allows the bicycle multi-chainring assembly with at least six speed levels to reduce weight and improve production efficiency. The bicycle multi-chainring assembly with at least six speed levels can also offer a wide range of gear ratios.

[0048] According to a seventh aspect of the present invention, the bicycle multiple chain wheel arrangement according to the fourth aspect can be designed as follows.

[0049] At least one part of the third sprocket mounting section is arranged radially outside the fourth sprocket mounting section with respect to the axis of rotation.

[0050] The seventh sprocket has a seventh total number of teeth, which is fewer than the sixth total number of teeth. The seventh sprocket body is coupled to the fourth inward-facing surface of the fourth sprocket mounting section. The eighth sprocket has an eighth total number of teeth, which is fewer than the seventh total number of teeth. The eighth sprocket body is coupled to the fourth outward-facing surface of the fourth sprocket mounting section.

[0051] This allows the bicycle multi-chainring assembly with at least eight speed levels to reduce weight and improve production efficiency. The bicycle multi-chainring assembly with at least eight speed levels can also offer a wide gear ratio range.

[0052] According to an eighth aspect of the present invention, the bicycle multiple chainring arrangement can be configured according to the first to sixth aspects as follows. The first chainring has a hub engagement profile.

[0053] This design allows the bicycle's multiple chainring assembly to engage with the hub without requiring the preparation of other links.

[0054] According to a ninth aspect of the present invention, the bicycle multiple chainring arrangement according to the fourth aspect can be configured as follows. The fourth chainring mounting section has a hub engagement profile.

[0055] This design allows the bicycle's multiple chainring assembly to engage with the hub without having to prepare the other links.

[0056] According to a tenth aspect of the present invention, the bicycle multiple chain wheel arrangement can be designed according to the second to ninth aspects as follows.

[0057] The first sprocket body of the first chainring is coupled to the first inward-facing surface of the first chainring mounting section of the chainring support link by a first mooring link. The first mooring link is a separate link from the chainring support link, the first chainring, and the second chainring. This allows the multi-chainring bicycle assembly to selectively improve the material's flexibility.

[0058] According to an eleventh aspect of the present invention, the bicycle multiple chain wheel arrangement according to the tenth aspect can be designed as follows.

[0059] The second sprocket body of the second sprocket is coupled to the first bicycle-outward facing surface of the first sprocket mounting section of the sprocket support link by the first mooring link. This allows the bicycle multi-sprocket assembly to reduce weight and improve production efficiency, as the first and second sprockets are coupled to the first sprocket mounting section by a common mooring link.

[0060] According to a twelfth aspect of the present invention, the bicycle multiple chain wheel arrangement can be designed as follows according to the second to sixth aspects.

[0061] The third sprocket body of the third sprocket is coupled to the second inward-facing surface of the second sprocket mounting section of the sprocket support link by a second mooring link. This second mooring link is separate from the sprocket support link, the third sprocket, and the fourth sprocket. This allows the multi-sprocket bicycle assembly to selectively improve the material's flexibility.

[0062] According to a thirteenth aspect of the present invention, the bicycle multiple chain wheel arrangement according to the twelfth aspect can be designed as follows.

[0063] The fourth sprocket body is coupled to the second bicycle-outward facing surface of the second sprocket mounting section of the sprocket support link by the second mooring link. This allows the bicycle multi-sprocket assembly to reduce weight and improve production efficiency, as the third and fourth sprockets are coupled to the second sprocket mounting section by a common mooring link.

[0064] According to a fourteenth aspect of the present invention, the bicycle multiple chain wheel arrangement according to the third or fourth aspect can be designed as follows.

[0065] The fifth sprocket body of the fifth sprocket is coupled to the third inward-facing surface of the third sprocket mounting section of the sprocket support link by a third mooring link. This third mooring link is separate from the sprocket support link, the fifth sprocket, and the sixth sprocket. This design allows the multi-sprocket bicycle assembly to reduce weight and improve production efficiency.

[0066] According to a fifteenth aspect of the present invention, the bicycle multiple chain wheel arrangement according to the fourteenth aspect can be designed as follows.

[0067] The sixth sprocket body is coupled to the third bicycle-outward facing surface of the third sprocket mounting section of the sprocket support link by the third mooring link. This allows the bicycle multi-sprocket assembly to reduce weight and improve production efficiency, as the fifth and sixth sprockets are coupled to the third sprocket mounting section by a common mooring link.

[0068] According to a sixteenth aspect of the present invention, the bicycle multiple chain wheel arrangement according to the fourth aspect can be designed as follows.

[0069] The seventh sprocket body of the seventh sprocket is coupled to the fourth inward-facing surface of the fourth sprocket mounting section of the sprocket support link by a fourth mooring link. This fourth mooring link is separate from the sprocket support link, the seventh sprocket, and the eighth sprocket. This allows the multi-sprocket bicycle arrangement to selectively improve the material's flexibility.

[0070] According to a seventeenth aspect of the present invention, the bicycle multiple chainring arrangement can be designed as follows according to the sixteenth aspect.

[0071] The eighth sprocket body is coupled to the fourth bicycle-outward facing surface of the fourth sprocket mounting section of the sprocket support link by the fourth mooring link. This allows the bicycle multi-sprocket assembly to reduce weight and improve production efficiency, as the seventh and eighth sprockets are coupled to the fourth sprocket mounting section by a common mooring link.

[0072] According to an eighteenth aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows, according to aspects ten through seventeen. The first fastening link includes a rivet.

[0073] This design allows the rear sprockets to be easily and reliably fixed to the sprocket mounting link.

[0074] According to a nineteenth aspect of the present invention, the bicycle multi-chainring assembly can be configured as follows, according to aspects ten through seventeen. The first securing link includes adhesives. This enables the bicycle multi-chainring assembly to reduce weight, since the securing link is not a metallic link.

[0075] According to a twentieth aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows, according to the twelfth to seventeenth aspects. The second fastening link includes a rivet.

[0076] This design allows the rear sprockets to be easily and reliably fixed to the sprocket mounting link.

[0077] According to aspect twenty-first of the present invention, the bicycle multi-chainring assembly can be configured as follows, according to aspects twelve to seventeen. The second securing link includes adhesives. This allows the bicycle multi-chainring assembly to reduce weight, since the securing link is not a metallic link.

[0078] According to a twenty-second aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows, according to fourteenth to seventeenth aspects. The third fastening link includes a rivet.

[0079] This design allows the rear sprockets to be easily and reliably fixed to the sprocket mounting link.

[0080] According to a twenty-third aspect of the present invention, the bicycle multi-chainring assembly can be configured as follows, according to aspects fourteen to seventeen. The third securing link includes adhesives. This allows the bicycle multi-chainring assembly to reduce weight, since the securing link is not a metallic link.

[0081] According to a twenty-fourth aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows, according to the sixteenth or seventeenth aspect. The fourth fastening link includes a rivet.

[0082] This design allows the rear sprockets to be easily and reliably fixed to the sprocket mounting link.

[0083] According to a twenty-fifth aspect of the present invention, the bicycle multi-chainring assembly can be configured as follows, according to the sixteenth or seventeenth aspect. The fourth securing link includes an adhesive. This allows the bicycle multi-chainring assembly to reduce weight, since the securing link is not a metallic link.

[0084] According to a twenty-sixth aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows according to the first to twenty-fifth aspects.

[0085] The first connecting section extends non-parallel to the first and second sprocket mounting sections due to deformation of the sprocket support link. This allows the bicycle multi-sprocket assembly to improve production efficiency.

[0086] According to a twenty-seventh aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows according to the first to twenty-sixth aspects.

[0087] The sprocket support link further includes a third sprocket mounting section and a second connecting section.

[0088] The third sprocket mounting section is axially spaced from the second sprocket mounting section. The second connecting section links the second and third sprocket mounting sections.

[0089] The second connecting section extends non-parallel to the second and third sprocket mounting sections, due to deformation of the sprocket support link. This allows the bicycle multi-sprocket assembly to improve production efficiency.

[0090] According to a twenty-eighth aspect of the present invention, the bicycle multiple chain wheel arrangement can be configured as follows according to the third to twenty-seventh aspects.

[0091] The sprocket support link further includes a fourth sprocket mounting section and a third connecting section. The fourth sprocket mounting section is axially spaced from the third sprocket mounting section. The third connecting section connects the third sprocket mounting section and the fourth sprocket mounting section.

[0092] The third connecting section extends non-parallel to the third and fourth sprocket mounting sections by deforming the sprocket support link. This allows the bicycle multi-sprocket assembly to improve production efficiency.

[0093] According to a twenty-ninth aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows according to the first to twenty-eighth aspects.

[0094] The first sprocket assembly section includes a first base section and at least one first mounting tab.

[0095] This allows the bicycle multi-chainring assembly to reduce weight and improve production efficiency, as the number of chainring mounting links is reduced and the chainring support link is easily deformed. The bicycle multi-chainring assembly is also able to selectively improve the material's flexibility, since the chainring support link is a separate link from the chainrings.

[0096] According to a thirtieth aspect of the present invention, the bicycle multiple chain wheel arrangement can be designed as follows, according to the twenty-ninth aspect.

[0097] The second first sprocket assembly section includes a second base section and at least one second mounting tab.

[0098] This allows the bicycle multi-chainring assembly to reduce weight and improve production efficiency, as the number of chainring mounting links is reduced and the chainring support link is easily deformed. The bicycle multi-chainring assembly is also able to selectively improve the material's flexibility, since the chainring support link is a separate link from the chainrings.

[0099] According to a thirty-first aspect of the present invention, the bicycle multiple chainring arrangement can be designed as follows, according to the thirtieth aspect.

[0100] The first mounting tab, at least, is offset from the second mounting tab in a circumferential direction with respect to the axis of rotation. This design allows each of the rear sprockets to be easily and precisely positioned by the sprocket mounting link.

[0101] According to a thirty-second aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows, according to the thirtieth or thirty-first aspect.

[0102] The sprocket support link further includes a third sprocket mounting section, which is axially spaced from the second sprocket mounting section. The third sprocket mounting section includes a third base section and at least one third mounting tab.

[0103] This allows the bicycle multi-chainring assembly to reduce weight and improve production efficiency, as the number of chainring mounting links is reduced and the chainring support link is easily deformed. The bicycle multi-chainring assembly is also able to selectively improve the material's flexibility, since the chainring support link is a separate link from the chainrings.

[0104] According to a thirty-third aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows, according to the thirty-second aspect.

[0105] The first mounting tab, the second mounting tab, and the third mounting tab are offset from each other in a circumferential direction with respect to the axis of rotation. This design allows each of the rear sprockets to be easily and precisely positioned by the sprocket mounting link.

[0106] According to a thirty-fourth aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows, according to the thirty-second or thirty-third aspect.

[0107] The sprocket support link further includes a fourth sprocket mounting section, which is axially offset from the third sprocket mounting section. The fourth sprocket mounting section includes a fourth base section and at least one fourth mounting tab.

[0108] This allows the bicycle multi-chainring assembly to reduce weight and improve production efficiency, as the number of chainring mounting links is reduced and the chainring support link is easily deformed. The bicycle multi-chainring assembly is also able to selectively improve the material's flexibility, since the chainring support link is a separate link from the chainrings.

[0109] According to a thirty-fifth aspect of the present invention, the bicycle multiple chainring arrangement can be configured as follows, according to the thirty-fourth aspect.

[0110] The at least one first mounting tab, the at least one second mounting tab, the at least one third mounting tab, and the at least one fourth mounting tab are offset from each other in a circumferential direction with respect to the axis of rotation. This design allows each of the rear sprockets to be easily and precisely positioned by the sprocket mounting link. Brief description of the drawings

[0111] Now, referring to the attached drawings, which form part of this original revelation: Fig. 1 is a side view of a bicycle according to a first embodiment of the present invention; Fig. 2 is a front view of a rear sprocket assembly according to the embodiment; Fig. 3 is a rear view of a rear sprocket assembly according to the embodiment; Fig. Figure 4 is a front view of a rear sprocket arrangement according to the embodiment (except for a third sprocket, a fifth sprocket and a seventh sprocket); Fig. Figure 5 is a front view of a rear sprocket assembly according to the embodiment (except for a first sprocket, a second sprocket, a fourth sprocket, a sixth sprocket and an eighth sprocket); Fig. Figure 6 is a perspective view of a sprocket mounting link according to the embodiment; Fig. 7 is a front view of a sprocket mounting link according to the embodiment; and Fig. Figure 8 is a rear view of a first sprocket according to the further embodiment. Detailed description of preferred embodiments

[0112] Selected embodiments of the present technology are now explained with reference to the accompanying drawings. It will be apparent to a person skilled in the art from this disclosure that the following descriptions of the embodiments of the present technology are provided for illustrative purposes only and not for the purpose of limiting the technology as defined by the accompanying claims and their equivalents. Design: General design of a bicycle

[0113] As in Fig. As shown in Figure 1, a bicycle includes a bicycle chain 9, a frame 11 (an example of a bicycle frame), a handlebar 13, a front hub assembly 15, front and rear wheels 17, 19, a rear derailleur 26 and a drive system 25.

[0114] The frame 11 comprises a frame body 11a. The frame body 11a includes a top tube 11c, a head tube 11d, a seat tube 11e, a down tube 11f, a pair of chainstays 11g, a pair of seatstays 11h, and a bottom bracket support 12. A connecting section of the seatstay 11h and the chainstays 11g is described below as a pair of rear ends 11j. A front fork 11b is rotatably attached to the head tube 11d of the frame body 11a.

[0115] The handlebar 13 is fixed to the front fork 11b. The front hub assembly 15 is supported on the front fork 11b. The front wheel 17 is rotatably attached to the front fork 11b via the front hub assembly 15. The rear wheel 19 is rotatably attached to a rear section of the frame 11 (the frame body 11a) via a rear hub assembly 29. A front tire 17a is attached to the front wheel 17. A rear tire 19a is attached to the rear wheel 19.

[0116] The rear derailleur 26 moves the bicycle chain 9 from a rear sprocket of a rear sprocket assembly 28 to an adjacent rear sprocket of the rear sprocket assembly 28 by means of a shifting device 24, which is attached, for example, to the right side of the handlebar 13. The rear sprockets are represented by a simplified representation in Fig. 1 shown. The rear derailleur 26, for example, is attached to the rear end 11j of the frame 11. Drive system configurations

[0117] As in Fig. As shown in Figure 1, the drive system 25 mainly includes a crank assembly 27, a rear sprocket assembly 28 (an example of a multiple rear sprocket assembly) and a rear hub assembly 29. Crank arrangement

[0118] As in Fig. As shown in Figure 1, the crank assembly 27 is rotatably supported on a lower section of the frame 11, for example, the bottom bracket support 12. The crank assembly 27 mainly comprises a crank axle (not shown), a right crank arm 33, a left crank arm (not shown), and a front sprocket 35.

[0119] The crank arrangement 27 is essentially the same as a conventional crank arrangement. Consequently, the design of the crank arrangement 27 in the embodiment is only briefly described.

[0120] The crankshaft is rotatably supported on the bottom bracket support 12. Both ends of the crankshaft are attached to the ends of the right crank arm 33 and the left crank arm, respectively. A pair of pedals 34 are attached to the other ends of the right crank arm 33 and the left crank arm, respectively. The front chainring 35 is attached to the right crank arm 33 to rotate integrally with it. The front chainring 35 can consist of two or three chainrings. Rear hub arrangement

[0121] As in Fig. As shown in Figure 1, the rear hub assembly 29 is mounted to the rear section of the frame 11, for example, the rear ends 11j. The rear hub assembly 29 is essentially the same as a conventional rear hub assembly. Consequently, the design of the rear hub assembly 29 is only briefly described here in its embodiment.

[0122] The rear hub assembly 29 is designed to mount the rear sprocket assembly 28 to it. The rear hub assembly 29 mainly comprises a rear hub shaft 51, a rear hub shell (not shown) and a sprocket mounting link 39 (see Fig. 2).

[0123] Both ends of the rear hub shaft 51 are supported on the pair of rear ends 11j. The rear hub shaft 51 is arranged within the hub shell body. The rear hub shell is essentially designed as a tubular shape. The rear hub shell is rotatably supported on the rear hub shaft 51 via bearings.

[0124] The sprocket mounting link 39 is designed in an essentially tubular shape. The sprocket mounting link 39 is rotatably supported on the rear hub shaft 51 via bearings.

[0125] The sprocket mounting link 39 is mounted to the rear hub shell to rotate integrally with the rear hub shell about a rotational center axis C1.

[0126] The sprocket mounting link 39 supports the rear sprocket assembly 28 to rotate integrally with the rear sprocket assembly 28 about the rotational center axis C1. Rear sprocket assembly

[0127] As in the Fig. 1, Fig. 2 to Fig. As shown in Figure 3, the rear sprocket assembly 28 (i.e., the multiple rear sprocket assembly 28) incorporates the pivot axis C1. The rear sprocket assembly 28 is supported on the rear hub assembly 29. The rear sprocket assembly 28 rotates integrally with the rear hub assembly 29 (e.g., the rear hub shell and the sprocket mounting link 39) about the pivot axis C1.

[0128] As in the Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. As can be seen in Figure 7, the rear sprocket assembly 28 includes a sprocket support link 40 and rear multiple sprockets 41. (Sprocket support link)

[0129] The sprocket support link 40 is manufactured from a single metallic plate. The term "single metallic plate," as used herein, means a single unit plate link made of a metallic material such as aluminum, iron, or titanium. Consequently, the term "single metallic plate" does not include an embodiment in which a plate link comprises several pieces joined together by adhesives, fasteners, or the like. Each section (as described below) of the sprocket support link 40 is formed by deforming the single metallic plate.

[0130] As in the Fig. 6 and Fig. As shown in Figure 7, the sprocket support link 40 includes a first sprocket mounting section 42, a second sprocket mounting section 43, a third sprocket mounting section 44, and a fourth sprocket mounting section 45. The sprocket support link 40 also includes at least a first connecting section 46 (an example of a first connecting section), at least a second connecting section 47 (an example of a second connecting section), and at least a third connecting section 48 (an example of a third connecting section). Preferably, the sprocket support link 40 includes a plurality of first connecting sections 46, a plurality of second connecting sections 47, and a plurality of third connecting sections 48.

[0131] As in Fig. As can be seen in Figure 6, the second sprocket mounting section 43 is spaced apart from the first sprocket mounting section 42 in an axial direction parallel to the rotational center axis C1.

[0132] At least one part of the first sprocket mounting section 42 is arranged radially outside the second sprocket mounting section 43 with respect to the axis of rotation C1.

[0133] In the embodiment as described in Fig. 6 and Fig. As shown in Figure 7, an entire section of the first sprocket mounting section 42 is arranged radially outside the second sprocket mounting section 43 with respect to the rotational center axis C1.

[0134] The first sprocket mounting section 42 includes a first base section 42a and a plurality of first mounting tabs 42b (an example of at least one first mounting tab 42b).

[0135] The first basic section 42a is formed in a substantially ring-shaped form.

[0136] The multitude of first mounting tabs 42b are arranged at intervals or spacings in a circumferential direction with respect to the axis of rotation C1. Each of the first mounting tabs 42b extends radially outwards from the first base section 42a in a radial direction with respect to the axis of rotation C1. More specifically, each of the first mounting tabs 42b projects outwards from the first base section 42a in the radial direction.

[0137] The at least one first mounting tab 42b is offset from at least one second mounting tab 43b (as described below) in the circumferential direction with respect to the axis of rotation C1. In this embodiment, each mounting tab 42b is offset from each mounting tab 43b in the circumferential direction when the sprocket support link 40 is viewed from the axial direction.

[0138] Each of the first mounting lugs 42b includes a first mounting bore 42c. The first mounting bore 42c runs through the first mounting lug 42b in the axial direction. A first mooring link 61 (as described below) is inserted into the first mounting bore 42c.

[0139] The first sprocket mounting section 42 further comprises a first bicycle-inward directed surface 42e and a first bicycle-outward directed surface 42d, which is axially opposite to the first bicycle-inward directed surface 42e. In other words, the first bicycle-inward directed surface 42 is oriented in the opposite direction with respect to the axial direction compared to the first bicycle-outward directed surface 42d.

[0140] The term "outwardly directed surface" denotes a surface that is directed in one direction, apart from a bicycle frame axial median plane, perpendicular to the axis of rotation C1 and passes through an axial center of the frame 11. The term "inwardly directed surface" denotes a surface that is directed towards the bicycle frame axial median plane.

[0141] The first bicycle-outward directed surface 42d is directed towards the rear ends 11j, in a state in which the rear chain wheel assembly 28 is mounted to the frame 11.

[0142] The first bicycle-inward facing surface 42e is provided on one side away from the rear ends 11j, in a state in which the rear sprocket assembly 28 is mounted to the frame 11. In other words, the first bicycle-inward facing surface 42e is directed towards the rear wheel 19 in that state.

[0143] As in Fig. As shown in Figure 6, the second sprocket mounting section 43 is axially spaced from the first sprocket mounting section 42 parallel to the axis of rotation C1. More specifically, the second sprocket mounting section 43 is arranged axially between the first sprocket mounting section 42 and the third sprocket mounting section 44.

[0144] At least one part of the second sprocket mounting section 43 is arranged radially outside the third sprocket mounting section 44 with respect to the axis of rotation C1.

[0145] In the embodiment as described in Fig. 6 and Fig. As shown in Figure 7, an entire section of the second sprocket mounting section 43 is arranged radially outside the third sprocket mounting section 44 with respect to the rotational center axis C1.

[0146] The second sprocket mounting section 43 includes a second base section 43a and a plurality of second mounting tabs 43b (an example of at least one second mounting tab 43b).

[0147] The second base section 43a is formed in a substantially ring-shaped form.

[0148] The multiple second mounting tabs 43b are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1. Each of the second mounting tabs 43b extends radially outwards from the second base section 43a in a radial direction with respect to the axis of rotation C1. More specifically, each of the second mounting tabs 43b projects radially outwards from the second base section 43a.

[0149] The at least one second mounting tab 43b is offset from the at least one first mounting tab 42b in the circumferential direction with respect to the axis of rotation C1.

[0150] The at least one second mounting tab 43b is also offset from the at least one third mounting tab 44b (as described below) in the circumferential direction with respect to the axis of rotation C1.

[0151] In this embodiment, each of the second mounting tab 43b is offset in the circumferential direction from each of the first mounting tab 42b and each of the third mounting tab 44b when the sprocket support link 40 is viewed from the axial direction.

[0152] Each of the second mounting lugs 43b includes a second mounting bore 43c. The second mounting bore 43c runs through the second mounting lug 43b in the axial direction. A second mooring link 62 (as described below) is inserted into the second mounting bore 43c.

[0153] The second sprocket mounting section 43 further includes a second bicycle-inward directed surface 43e and a second bicycle-outward directed surface 43d, which is axially opposite to the second bicycle-inward directed surface 43e. In other words, the second bicycle-inward directed surface 43e is directed in the opposite direction with respect to the axial direction compared to the second bicycle-outward directed surface 43d.

[0154] The second bicycle-outward directed surface 43d is directed towards the rear ends 11j, in a state in which the rear chain wheel assembly 28 is mounted to the frame 11.

[0155] The second bicycle-inward facing surface 43e is provided on one side away from the rear ends 11j, in a state in which the rear sprocket assembly 28 is mounted to the frame 11. In other words, the second bicycle-inward facing surface 43e is directed towards the rear wheel 19 in that state.

[0156] As in Fig. As shown in Figure 6, the third sprocket mounting section 44 is axially spaced from the second sprocket mounting section 43. More specifically, the third sprocket mounting section 44 is arranged axially between the second sprocket mounting section 43 and the fourth sprocket mounting section 45.

[0157] At least one part of the third sprocket mounting section 44 is arranged radially outside the fourth sprocket mounting section 45 with respect to the rotational center axis C1.

[0158] In the embodiment as described in Fig. 6 and Fig. As shown in Figure 7, an entire section of the third sprocket mounting section 44 is arranged radially outside the fourth sprocket mounting section 45 with respect to the rotational center axis C1.

[0159] The third sprocket mounting section 44 includes a third base section 44a and a plurality of third mounting tabs 44b (an example of at least one third mounting tab 44b).

[0160] The third basal section 44a is formed in a substantially ring-shaped form.

[0161] The multiple third mounting tabs 44b are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1. Each of the third mounting tabs 44b extends outwards from the third base section 44a in a radial direction with respect to the axis of rotation C1. More specifically, each of the third mounting tabs 44b projects outwards from the third base section 44a in the radial direction.

[0162] The at least one third mounting tab 44b is offset from the at least one second mounting tab 43b in the circumferential direction with respect to the axis of rotation C1. The at least one third mounting tab 44b is also offset from the at least one first mounting tab 42b in the circumferential direction with respect to the axis of rotation C1. In other words, the at least one first mounting tab 42b, the at least one second mounting tab 43b, and the at least one third mounting tab 44b are offset from each other in the circumferential direction with respect to the axis of rotation C1.

[0163] The at least one third mounting tab 44b is also offset from the at least one fourth mounting tab 45b (as described below) in the circumferential direction with respect to the axis of rotation C1.

[0164] In other words, at least one first mounting tab 42b, at least one second mounting tab 43b, at least one third mounting tab 44b and at least one fourth mounting tab 45b are offset from each other in a circumferential direction with respect to the axis of rotation C1.

[0165] In this embodiment, each of the first mounting tabs 42b, each of the second mounting tabs 43b, each of the third mounting tabs 44b and each of the mounting tabs 45b are offset from each other in the circumferential direction when the sprocket support link 40 is viewed from the axial direction.

[0166] Each of the third mounting lugs 44b includes a third mounting bore 44c. The third mounting bore 44c extends through the third mounting lug 44b in the axial direction. A third mooring link 63 (as described below) is inserted into the third mounting bore 44c.

[0167] The third sprocket mounting section 44 further includes a third bicycle-inward directed surface 44e and a third bicycle-outward directed surface 44d, which is axially opposite to the third bicycle-inward directed surface 44e. In other words, the third bicycle-inward directed surface 44e is directed in the opposite direction with respect to the axial direction compared to the third bicycle-outward directed surface 44d.

[0168] The third bicycle-outward directed surface 44d is directed towards the rear ends 11j, in a state in which the rear chain wheel assembly 28 is mounted to the frame 11.

[0169] The third bicycle-inward facing surface 44e is provided on one side away from the rear ends 11j, in a state in which the rear sprocket assembly 28 is mounted to the frame 11. In other words, the third bicycle-inward facing surface 44e is directed towards the rear wheel 19 in that state.

[0170] As in Fig. As shown in Figure 6, the fourth sprocket mounting section 45 is spaced axially from the third sprocket mounting section 44.

[0171] At least one part of the fourth sprocket mounting section 45 is arranged radially inside the third sprocket mounting section 44 with respect to the axis of rotation C1.

[0172] In the embodiment as described in Fig. 6 and Fig. As shown in Figure 7, an entire section of the fourth sprocket mounting section 45 is arranged radially inside the third sprocket mounting section 44 with respect to the rotational center axis C1.

[0173] The fourth sprocket mounting section 45 includes a fourth base section 45a and a plurality of fourth mounting lugs 45b (an example of at least one fourth mounting lug 45b). Preferably, the fourth sprocket mounting section 45 includes a hub engagement profile 45f.

[0174] The hub engagement profile 45f is designed to engage with the rear hub assembly 29 (e.g., the sprocket mounting link 39). For example, the hub engagement profile 45f is designed as a spline hole.

[0175] The fourth basal section 45a is formed in a substantially ring-shaped form.

[0176] The multitude of fourth mounting tabs 45b are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1. Each of the fourth mounting tabs 45b extends radially outwards from the fourth base section 45a in a radial direction with respect to the axis of rotation C1. More specifically, each of the fourth mounting tabs 45b projects radially outwards from the fourth base section 45a.

[0177] The at least one fourth mounting tab 45b is offset from the at least one third mounting tab 44b in the circumferential direction with respect to the axis of rotation C1.

[0178] In other words, at least one first mounting tab 42b, at least one second mounting tab 43b, at least one third mounting tab 44b and at least one fourth mounting tab 45b are offset from each other in the circumferential direction with respect to the axis of rotation C1.

[0179] In this embodiment, each of the first mounting tabs 42b, each of the second mounting tabs 43b, each of the third mounting tabs 44b and each of the fourth mounting tabs 45b are offset from each other in the circumferential direction when the sprocket support link 40 is viewed from the axial direction.

[0180] Each of the fourth mounting lugs 45b includes a fourth mounting hole 45c. The fourth mounting hole 45c runs through the fourth mounting lug 45b in the axial direction. A fourth mooring link 64 (as described below) is inserted into the fourth mounting hole 45c.

[0181] The fourth sprocket mounting section 45 further includes a fourth bicycle-inward directed surface 45e and a fourth bicycle-outward directed surface 45d, which are axially opposite to the fourth bicycle-inward directed surface 45e. In other words, the fourth bicycle-inward directed surface 45e is directed in the opposite direction with respect to the axial direction compared to the fourth bicycle-outward directed surface 45d.

[0182] The fourth bicycle-outward directed surface 45d is directed towards the rear ends 11j, in a state in which the rear chain wheel assembly 28 is mounted to the frame 11.

[0183] The fourth bicycle-inward facing surface 45e is provided on one side away from the rear ends 11j, in a state in which the rear sprocket assembly 28 is mounted to the frame 11. In other words, the fourth bicycle-inward facing surface 45e is directed towards the rear wheel 19 in that state.

[0184] As in the Fig. 6 and Fig. As shown in Figure 7, the first connecting section 46 connects the first sprocket mounting section 42 and the second sprocket mounting section 43. Preferably, the sprocket support link 40 includes a plurality of first connecting sections 46.

[0185] The first connecting section 46 extends non-parallel to the first sprocket mounting section 42 and the second sprocket mounting section 43 by deformation of the sprocket support link 40.

[0186] More specifically, the plurality of first connecting sections 46 are inclined with respect to the first base section 42a of the first sprocket assembly section 42 and the second base section 43a of the second sprocket assembly section 43. The plurality of first connecting sections 46 are integrally formed with the first sprocket assembly section 42 and the second sprocket assembly section 43 as a single unit link.

[0187] The plurality of first connecting sections 46 are arranged at intervals or distances in the circumferential direction. Each of the plurality of first connecting sections 46 is arranged between the adjacent second mounting lugs 43b in the circumferential direction when the sprocket mounting link 39 is viewed along the axis of rotation C1.

[0188] The adjacent first connecting sections 46 in the circumferential direction, the first base section 42a and the second base section 43a form an opening section S1. The second sprocket mounting section 43 is arranged near the opening section S1 when viewed from an axial direction parallel to the axis of rotation C1.

[0189] As in Fig. 6 and Fig. As shown in Figure 7, the second connecting section 47 connects the second sprocket mounting section 43 and the third sprocket mounting section 44. Preferably, the sprocket support link 40 includes a plurality of second connecting sections 47.

[0190] The second connecting section 47 extends non-parallel to the second sprocket mounting section 43 and the third sprocket mounting section 44 by deforming the sprocket support link 40.

[0191] More specifically, the plurality of second connecting sections 47 is inclined with respect to the second base section 43a of the second sprocket mounting section 43 and the third base section 44a of the third sprocket mounting section 44. The plurality of second connecting sections 47 are integrally formed with the second sprocket mounting section 43 and the third sprocket mounting section 44 as a single unit link.

[0192] The plurality of second connecting sections 47 are arranged at intervals or distances in the circumferential direction. Each of the plurality of second connecting sections 47 is arranged between the adjacent third mounting lugs 44b in the circumferential direction when the sprocket support link 39 is viewed along the axis of rotation C1.

[0193] The adjacent second connecting sections 47 in the circumferential direction, the second base section 43a and the third base section 44a form an opening section S1. The third sprocket mounting section 44 is arranged near the opening section S2 when viewed from an axial direction parallel to the rotational center axis C1.

[0194] As in Fig. 6 and Fig. As shown in Figure 7, the third connecting section 48 connects the third sprocket mounting section 44 and the fourth sprocket mounting section 45. Preferably, the sprocket support link 40 includes a plurality of third connecting sections 48.

[0195] The third connecting section 48 does not extend parallel to the third sprocket mounting section 44 and the fourth sprocket mounting section 45 by deformation of the sprocket support link 40.

[0196] More specifically, the plurality of third connecting sections 48 are inclined with respect to the third base section 44a of the third sprocket mounting section 44 and the fourth base section 45a of the fourth sprocket mounting section 45. The plurality of third connecting sections 48 are integrally formed with the third sprocket mounting section 44 and the fourth sprocket mounting section 45 as a single unit link.

[0197] The plurality of third connecting sections 48 are arranged at intervals or distances in the circumferential direction. Each of the plurality of third connecting sections 48 is arranged between the adjacent fourth mounting lugs 45b in the circumferential direction when the sprocket support link 39 is viewed along the axis of rotation C1.

[0198] The adjacent third connecting sections 48 in the circumferential direction, the third base section 44a and the fourth base section 45a form an opening section S3. The fourth sprocket mounting section 44 is arranged near the opening section S3 when viewed from an axial direction parallel to the rotational center axis C1. (Rear multiple sprockets)

[0199] As in Fig. 2, Fig. 3, Fig. 4 to Fig. As shown in Figure 5, the rear multiple sprockets 41 include a first sprocket 51, a second sprocket 52, a third sprocket 53, a fourth sprocket 54, a fifth sprocket 55, a sixth sprocket 56, a seventh sprocket 57 and an eighth sprocket 58. - First sprocket -

[0200] As in Fig. 2 and Fig. As shown in Figure 3, the rear sprocket assembly 28 comprises the first sprocket 51, which is a separate link from the sprocket support link 40. In this embodiment, the first sprocket 51 is the largest sprocket in the rear multiple sprockets 41. The first sprocket 51 includes a first total number of teeth. For example, the first total number of teeth is forty-five.

[0201] As in Fig. As can be seen in Figure 2, the first sprocket 51 includes a first sprocket body 51a and a plurality of first sprocket teeth 51b, which extend radially outwards from the first sprocket body 51a with respect to the axis of rotation C1.

[0202] As in Fig. 2 and Fig. As shown in Figure 3, the first sprocket body 51a is formed in a substantially ring-shaped form. The plurality of first sprockets 51b are integrally formed with the first sprocket body 51a as a single unit element. More specifically, the plurality of first sprockets 51b are provided at predetermined intervals or distances in the circumferential direction on an outer peripheral section of the first sprocket body 51a.

[0203] The first sprocket body 51a is attached to a surface 42e facing the first bicycle-inward facing surface 42e of the first sprocket mounting section 42 and the surface 42d facing the bicycle-outward facing surface 42d of the first sprocket mounting section 42 (see Fig. 6 and Fig. 7) coupled.

[0204] In this embodiment, the first sprocket body 51a is coupled to the first bicycle-inward facing surface 42e of the first sprocket mounting section 42. For example, the first sprocket body 51a is coupled to the first bicycle-inward facing surface 42e of the first sprocket mounting section 42 by a first mooring link 61.

[0205] The first mooring link 61 is a separate link from the sprocket support link 40, the first sprocket 51 and the second sprocket 52. For example, the first mooring link 61 includes a rivet.

[0206] More specifically, as in Fig. As shown in Figure 3, the first sprocket body 51a includes a plurality of first fastening sections 51c. The plurality of first fastening sections 51c are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1.

[0207] Each of the first fastening sections 51c is provided on a radial inner part of the first sprocket body 51a to extend radially inwards in a radial direction with respect to the rotational center axis C1.

[0208] Each of the fastening sections 51c includes a first fixing hole 51d. The first fixing hole 51d runs through the first fastening section 51c in the axial direction. Each of the plurality of first fixing holes 51d is arranged to align with each of the plurality of first mounting holes 42c in the axial direction.

[0209] The first mooring link 61 is inserted into the first mounting bore 42c, the first fixing bore 51d and a second fixing bore 52d (as described below). This fixes the first sprocket body 51a to the first sprocket mounting section 42 with the second sprocket body 52a by means of a rivet engagement. - Second sprocket -

[0210] As in Fig. 2 and Fig. As shown in Figure 4, the rear sprocket assembly 28 includes the second sprocket 52, which is a separate link from the sprocket support link 40. The second sprocket 52 has a second total number of teeth, which is smaller than the first total number of teeth. For example, the second total number of teeth is forty.

[0211] The second sprocket 52 includes a second sprocket body 52a and a plurality of second sprocket teeth 52b, which extend radially outwards from the second sprocket body 52 with respect to the axis of rotation C1.

[0212] The second sprocket body 52a is formed in a substantially ring-shaped form. The plurality of second sprocket teeth 52b are integrally formed with the second sprocket body 52a as a single unit element. More specifically, the plurality of second sprocket teeth 52b are provided at predetermined intervals or distances in the circumferential direction on an outer peripheral section of the second sprocket body 52a.

[0213] The second sprocket body 52a is connected to the other by the first bicycle-outward facing surface 42d of the first sprocket mounting section 42 and the first bicycle-inward facing surface 42e of the first sprocket mounting section 42 (see Fig. 6 and Fig. 7) coupled.

[0214] In this embodiment, the second sprocket body 52a is coupled to the first bicycle-outward facing surface 42d of the first sprocket mounting section 42. For example, the second sprocket body 52a is coupled to the first bicycle-outward facing surface 42d of the first sprocket mounting section 42 by the first fastening link 61.

[0215] More specifically, as in Fig. As shown in Figure 4, the second sprocket body 52a includes a plurality of second fastening sections 52c. The plurality of second fastening sections 52c are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1.

[0216] Each of the second mounting sections 52c is provided on a radial inner portion of the second sprocket body 52a to extend radially inward in a radial direction with respect to the axis of rotation C1. Each of the second mounting sections 52c includes the second fixing bore 52d. The second fixing bore 52d passes through the second mounting section 52c in the axial direction. Each of the plurality of second fixing bores 52d is arranged to be aligned in the axial direction with each of the plurality of first mounting bores 42c.

[0217] The first mooring link 61 is inserted into the first mounting bore 42c, the first fixing bore 51d and the second fixing bore 52d. This fixes the second sprocket body 52a to the first sprocket mounting section 42 with the first sprocket body 51a by means of a rivet engagement. - Third sprocket -

[0218] As in Fig. 2 and Fig. As shown in Figure 5, the rear sprocket assembly 28 includes the third sprocket 53, which is a separate link from the sprocket support link 40. The third sprocket 53 has a third total number of teeth that is smaller than the second total number of teeth. For example, the third total number of teeth is thirty-six.

[0219] The third sprocket 53 includes a third sprocket body 53a and a plurality of third sprocket teeth 53b, which extend radially outwards from the third sprocket body 53a with respect to the axis of rotation C1.

[0220] The third sprocket body 53a is designed in a substantially ring-shaped form.

[0221] The plurality of third sprocket teeth 53b are integrally formed with the third sprocket body 53a as a single unit element. More specifically, the plurality of third sprocket teeth 53b are provided at predetermined intervals or distances in the circumferential direction on an outer peripheral section of the third sprocket body 53a.

[0222] The third sprocket body 53a is connected to a surface 43e facing the second bicycle-inward direction of the second sprocket mounting section 43 and to the surface 43d facing the second bicycle-outward direction of the second sprocket mounting section 43 (see Fig. 6 and Fig. 7) coupled.

[0223] In this embodiment, the third sprocket body 53a is coupled to the second bicycle-inward directed surface 43e of the second sprocket mounting section 43.

[0224] For example, the third sprocket body 53a is coupled to the second bicycle-inward directed surface 43e of the second sprocket mounting section 43 by the second mooring link 62.

[0225] The second mooring link 62 is a separate link from the sprocket support link 40, the third sprocket 53 and the fourth sprocket 54. For example, the second mooring link 62 includes a rivet.

[0226] More specifically, as in Fig. As shown in Figure 5, the third sprocket body 53a includes a plurality of third fastening sections 53c. The plurality of third fastening sections 53c are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1.

[0227] Each of the third mounting sections 53c is provided on a radial inner portion of the third sprocket body 53a to extend radially inwards in a radial direction with respect to the axis of rotation C1. More specifically, the third mounting section 53c projects inwards from the radial inner portion of the third sprocket body 53a in the radial direction.

[0228] Each of the third mounting sections 53c includes a third fixing hole (not shown). The third fixing hole runs through the third mounting section 53c in the axial direction. Each of the plurality of third fixing holes is arranged to align with each of the plurality of second mounting holes 43c in the axial direction.

[0229] The second mooring link 62 is inserted into the second mounting bore 43c, the third fixing bore (not shown), and the fourth fixing bore 54d (as described below). This secures the third sprocket body 53a to the second sprocket mounting section 43 with the fourth sprocket body 54a by means of a rivet engagement. - Fourth sprocket -

[0230] As in Fig. 2 and Fig. As shown in Figure 4, the rear sprocket assembly 28 includes the fourth sprocket 54, which is a separate link from the sprocket support link 40. The fourth sprocket 54 has a fourth total number of teeth that is less than the third total number of teeth. For example, the fourth total number of teeth is thirty-two.

[0231] The fourth sprocket 54 includes a fourth sprocket body 54a and a plurality of fourth sprocket teeth 54b, which extend radially outwards from the fourth sprocket body 54a with respect to the axis of rotation C1.

[0232] The fourth sprocket body 54a is formed in a substantially ring-shaped form. The plurality of fourth sprocket teeth 54b are integrally formed with the fourth sprocket body 54a as a single unit element. More specifically, the plurality of fourth sprocket teeth 54b are provided at predetermined intervals or spacings in the circumferential direction on an outer peripheral section of the fourth sprocket body 54a.

[0233] The fourth sprocket body 54a is connected to the other of the second bicycle-outward facing surface 43d of the second sprocket mounting section 43 and the second bicycle-inward facing surface 43e of the second sprocket mounting section 43 (see Fig. 6 and Fig. 7) coupled.

[0234] In this embodiment, the fourth sprocket body 54a is coupled to the second bicycle-outward facing surface 43d of the second sprocket mounting section 43. For example, the fourth sprocket body 54a is coupled to the second bicycle-outward facing surface 43d of the second sprocket mounting section 43 by the second fastening link 62.

[0235] More specifically, the fourth sprocket body 54a includes a plurality of fourth mounting sections 54c, as shown in Fig. Figure 4 illustrates the multitude of fourth fastening sections 54c are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1.

[0236] Each of the fourth mounting sections 54c is provided on a radial inner portion of the fourth sprocket body 54a to extend radially inward in a radial direction with respect to the axis of rotation C1. Each of the fourth mounting sections 54c includes the fourth fixing bore 54d. The fourth fixing bore 54d passes through the fourth mounting section 54c in the axial direction. Each of the plurality of fourth fixing bores 54d is arranged to align with each of the plurality of second mounting bores 43c in the axial direction.

[0237] The second mooring link 62 is inserted into the second mounting bore 43c, the third fixing bore (not shown) and the fourth fixing bore 54d. This fixes the fourth sprocket body 54a to the second sprocket mounting section 43 with the third sprocket body 53a by means of a rivet engagement. - Fifth sprocket -

[0238] As in Fig. 2 and Fig. As shown in Figure 5, the rear sprocket assembly 28 includes the fifth sprocket 55, which is a separate link from the sprocket support link 40. The fifth sprocket 55 has a fifth total number of teeth that is less than the fourth total number of teeth. For example, the fifth total number of teeth is twenty-eight.

[0239] The fifth sprocket 55 includes a fifth sprocket body 55a and a plurality of fifth sprocket teeth 55b, which extend radially outwards from the fifth sprocket body 55a with respect to the axis of rotation C1.

[0240] The fifth sprocket body 55a is designed in a substantially ring-shaped form.

[0241] The multitude of fifth sprocket teeth 55b are integrally formed with the fifth sprocket body 55a as a single unit element. More specifically, the multitude of fifth sprocket teeth 55b are provided at predetermined intervals or spacings in the circumferential direction on an outer peripheral section of the fifth sprocket body 55a.

[0242] The fifth sprocket body 55a is connected to a third bicycle-inward directed surface 44e of the third sprocket mounting section 44 and the third bicycle-outward directed surface 44d of the third sprocket mounting section 44 (see Fig. 6 and Fig. 7) coupled.

[0243] In this embodiment, the fifth sprocket body 55a is coupled to the third bicycle-inward facing surface 44e of the third sprocket mounting section 44. For example, the fifth sprocket body 55a is coupled to the third bicycle-inward facing surface 44e of the third sprocket mounting section 44 by the third fastening link 63.

[0244] The third mooring link 63 is a separate link from the sprocket support link 40, the fifth sprocket 55 and the sixth sprocket 56. For example, the third mooring link 63 includes a rivet.

[0245] More specifically, as in Fig. As shown in Figure 5, the fifth sprocket body 55a includes a plurality of fifth fastening sections 55c. The plurality of fifth fastening sections 55c are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1.

[0246] Each of the fifth mounting sections 55c is arranged on a radial inner portion of the fifth sprocket body 55a, extending radially inwards in a radial direction with respect to the axis of rotation C1. More specifically, the fifth mounting section 55c projects inwards in the radial direction from the radial inner portion of the fifth sprocket body 55a.

[0247] Each of the fifth fastening sections 55c includes the fifth fixing hole (not shown). The fifth fixing hole runs through the fifth fastening section 55c in the axial direction. Each of the multiple fifth fixing holes is ordered to align with each of the multiple third mounting holes 44c in the axial direction.

[0248] The third mooring link 63 is inserted into the third mounting bore 44c, the fifth fixing bore (not shown), and a sixth fixing bore 56d (as described below). This secures the fifth sprocket body 55a to the third sprocket mounting section 44 with a sixth sprocket body 56a (as described below) by means of a rivet engagement. - Sixth sprocket -

[0249] As in Fig. 2 and Fig. As shown in Figure 4, the rear sprocket assembly 28 includes the sixth sprocket 56, which is a separate link from the sprocket support link 40. The sixth sprocket 56 has a sixth total number of teeth that is less than the fifth total number of teeth. For example, the sixth total number of teeth is twenty-four.

[0250] The sixth sprocket 56 includes the sixth sprocket body 56a and a plurality of sixth sprocket teeth 56b, which extend radially outwards from the sixth sprocket body 56a with respect to the axis of rotation C1.

[0251] The sixth sprocket body 56a is formed in a substantially ring-shaped form. The plurality of sixth sprocket teeth 56b are integrally formed with the sixth sprocket body 56a as a single unit element. More specifically, the plurality of sixth sprocket teeth 56b are provided at predetermined intervals or spacings in the circumferential direction on an outer peripheral section of the sixth sprocket body 56a.

[0252] The sixth sprocket body 56a is connected to the other by the third bicycle-inward facing surface 44e of the third sprocket mounting section 44 and the third bicycle-outward facing surface 44d of the third sprocket mounting section 44 (see Fig. 6 and Fig. 7) coupled.

[0253] In this embodiment, the sixth sprocket body 56a is coupled to the third bicycle-outward facing surface 44d of the third sprocket mounting section 44. For example, the sixth sprocket body 56a is coupled to the third bicycle-outward facing surface 44d of the third sprocket mounting section 44 by the third fastening link 63.

[0254] More specifically, as in Fig. As shown in Figure 4, the sixth sprocket body 56a includes a plurality of sixth fastening sections 56c. The plurality of sixth fastening sections 56c are arranged at intervals in the circumferential direction with respect to the axis of rotation C1.

[0255] Each of the sixth mounting sections 56c is provided on a radial inner portion of the sixth sprocket body 56a to extend radially inward in a radial direction with respect to the axis of rotation C1. Each of the sixth mounting sections 56c includes the sixth fixing bore 56d. The sixth fixing bore 56d passes through the sixth mounting section 56c in the axial direction. Each of the plurality of sixth fixing bores 56d is arranged to align with each of the plurality of third mounting bores 44c in the axial direction.

[0256] The third mooring link 63 is inserted into the third mounting bore 44c, the fifth fixing bore (not shown) and the sixth fixing bore 56d. This fixes the sixth sprocket body 56a to the third sprocket mounting section 44 with the fifth sprocket body 55a by means of a rivet engagement. - Seventh sprocket -

[0257] As in Fig. 2 and Fig. As shown in Figure 5, the rear sprocket assembly 28 includes the seventh sprocket 57, which is a separate link from the sprocket support link 40. The seventh sprocket 57 has a seventh total number of teeth that is less than the sixth total number of teeth. For example, the seventh total number of teeth is twenty-one.

[0258] The seventh sprocket 57 includes a seventh sprocket body 57a and a plurality of seventh sprocket teeth 57b, which extend radially outwards from the seventh sprocket body 57a with respect to the axis of rotation C1.

[0259] The seventh sprocket body 57a is designed in a substantially ring-shaped form.

[0260] The multitude of seventh sprocket teeth 57b are integrally formed with the seventh sprocket body 57a as a single unit element. More specifically, the multitude of seventh sprocket teeth 57b are provided on an outer peripheral section of the seventh sprocket body 57a at predetermined intervals or spacings in the circumferential direction.

[0261] The seventh sprocket body 57a is connected to a fourth bicycle-inward directed surface 45e of the fourth sprocket mounting section 45 and the fourth bicycle-outward directed surface 45d of the fourth sprocket mounting section 45 (see Fig. 6 and Fig. 7) coupled.

[0262] In this embodiment, the seventh sprocket body 57a is coupled to the fourth bicycle-inward facing surface 45e of the fourth sprocket mounting section 45. For example, the seventh sprocket body 57a is coupled to the fourth bicycle-inward facing surface 45e of the fourth sprocket mounting section 45 by the fourth fastening link 64.

[0263] The fourth mooring link 64 is a separate link from the sprocket support link 40, the seventh sprocket 57 and the eighth sprocket 58. For example, the fourth mooring link 64 includes a rivet.

[0264] More specifically, as in Fig. As shown in Figure 5, the seventh sprocket body 57a includes a plurality of seventh fastening sections 57c. The plurality of seventh fastening sections 57c are arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1.

[0265] Each of the seventh mounting sections 57c is provided on a radial inner portion of the seventh sprocket body 57a to extend radially inwards in a radial direction with respect to the axis of rotation C1. More specifically, the seventh mounting section 57c projects inwards from the radial inner portion of the seventh sprocket body 57a in the radial direction.

[0266] Each of the seventh mounting sections 57c includes a seventh fixing hole (not shown). The seventh fixing hole runs through the seventh mounting section 57c in the axial direction. Each of the plurality of seventh fixing holes is arranged to align with each of the plurality of fourth mounting holes 45c in the axial direction.

[0267] The fourth mooring link 64 is inserted into the fourth mounting bore 45c, the seventh fixing bore (not shown), and an eighth fixing bore 58d (as described below). This secures the seventh sprocket body 57a to the fourth sprocket mounting section 45 with the eighth sprocket body 58a by means of a rivet engagement. - Eighth sprocket -

[0268] As in the Fig. 2 and Fig. As shown in Figure 4, the rear sprocket assembly 28 includes the eighth sprocket 58, which is a separate link from the sprocket support link 40. The eighth sprocket 58 has an eighth total number of teeth, which is less than the seventh total number of teeth. For example, the eighth total number of teeth is eighteen.

[0269] The eighth sprocket 58 includes an eighth sprocket body 58a and a plurality of eighth sprocket teeth 58b, which extend radially outwards from the eighth sprocket body 58a with respect to the axis of rotation C1.

[0270] The eighth sprocket body 58a is formed in a substantially ring-shaped form. The plurality of eighth sprocket teeth 58b are integrally formed with the eighth sprocket body 58a as a single unit element. More specifically, the plurality of eighth sprocket teeth 58b are provided at predetermined intervals or spacings in the circumferential direction on an outer peripheral section of the eighth sprocket body 58a.

[0271] The eighth sprocket body 58a is connected to the other by the fourth bicycle-inward facing surface 45e of the fourth sprocket mounting section 45 and the fourth bicycle-outward facing surface 45d of the fourth sprocket mounting section 45 (see Fig. 6 and Fig. 7) coupled.

[0272] In this embodiment, the eighth sprocket body 58a is coupled to the fourth bicycle-outward facing surface 45d of the fourth sprocket mounting section 45. For example, the eighth sprocket body 58a is coupled to the fourth bicycle-outward facing surface 45d of the fourth sprocket mounting section 45 by the fourth fastening link 64.

[0273] More specifically, the eighth sprocket body 58a includes a plurality of eighth mounting sections 58c, as in Fig. Figure 4 illustrates the multitude of eight fastening sections 58c arranged at intervals or distances in the circumferential direction with respect to the axis of rotation C1.

[0274] Each of the eight mounting sections 58c is provided on a radial inner portion of the eighth sprocket body 58a to extend radially inward in a radial direction with respect to the axis of rotation C1. Each of the eighth mounting sections 58c includes the eighth fixing bore 58d. The eighth fixing bore 58d passes through the eighth mounting section 58c in the axial direction. Each of the plurality of eighth fixing bores 58d is arranged to align with each of the plurality of fourth mounting bores 45c in the axial direction.

[0275] The fourth mooring link 64 is inserted into the fourth mounting bore 45c, the seventh fixing bore (not shown) and the eighth fixing bore 58d. This fixes the eighth sprocket body 58a to the fourth sprocket mounting section 45 with the fourth sprocket body 57a by means of a rivet engagement. - Installation of the rear multiple sprockets onto the sprocket mounting section -

[0276] First, the first fastening sections 51c of the first sprocket 51 are attached to or adjacent to the first bicycle-inward directed surface 42e of the first mounting tabs 42b of the first sprocket mounting section 42.

[0277] Subsequently, the second fastening sections 52c of the second sprocket 52 are attached to or adjacent to the first bicycle-outward directed surface 42d of the first mounting tabs 42b of the first sprocket mounting section 42.

[0278] In this state, the first fastening sections 51c, the second fastening sections 52c and the first mounting tabs 42b are fixed by the first mooring link 61, for example the rivet.

[0279] This fixes the first sprocket 51 and the second sprocket 52 to the first sprocket mounting section 42 by means of a rivet engagement, as described above.

[0280] Subsequently, each of the multiple third mounting sections 53c of the third sprocket 53 is guided through a space between the adjacent second mounting lugs 43b in the circumferential direction towards the first sprocket mounting section 42.

[0281] The third sprocket 53 is then rotated circumferentially. The third mounting sections 53c of the third sprocket 53 are each placed against or adjacent to the second inward-facing surface 43e of the second mounting tabs 43b of the second sprocket mounting section 43.

[0282] Subsequently, the fourth fastening sections 54c of the fourth sprocket 54 are attached to or adjacent to the second bicycle-outward directed surface 43d of the second mounting tabs 43b of the second sprocket mounting section 43.

[0283] In this state, the third fastening sections 53c, the fourth fastening sections 54c and the second mounting tabs 43b are fixed by the second mooring link 62, for example by the rivet.

[0284] This fixes the third sprocket 53 and the fourth sprocket 54 to the second sprocket mounting section 43 by means of a rivet engagement, as described above.

[0285] Thirdly, each of the multiple fifth mounting sections 55c of the fifth sprocket 55 is guided through a space between the adjacent third mounting lugs 44b in the circumferential direction towards the second sprocket mounting section 43.

[0286] The fifth sprocket 55 is then rotated circumferentially. The fifth mounting sections 55c of the fifth sprocket 55 are each placed against or adjacent to the third inward-facing surface 44e of the third mounting tabs 44b of the third sprocket mounting section 44.

[0287] Subsequently, the sixth fastening sections 56c of the sixth sprocket 56 are attached to or adjacent to the third bicycle-outward directed surface 44d of the third mounting tabs 44b of the third sprocket mounting section 44.

[0288] In this state, the fifth fastening sections 55c, the sixth fastening sections 56c and the third mounting tabs 44b are fixed by the third mooring link 63, for example the rivet.

[0289] This fixes the fifth sprocket 55 and the sixth sprocket 56 to the third sprocket mounting section 44 by means of a rivet engagement, as described above.

[0290] Finally, each of the multiple seventh mounting sections 57c of the seventh sprocket 57 is guided through a space between the adjacent fourth mounting lugs 45b in the circumferential direction towards the third sprocket mounting section 44.

[0291] The seventh sprocket 57 is then rotated circumferentially. The seventh mounting sections 57c of the seventh sprocket 57 are each placed against or adjacent to the fourth inward-facing surface 45e of the fourth mounting tabs 45b of the fourth sprocket mounting section 45.

[0292] Subsequently, the eighth fastening sections 58c of the eighth sprocket 58 are attached to or adjacent to the fourth bicycle-outward directed surface 45d of the fourth mounting tabs 45b of the fourth sprocket mounting section 45.

[0293] In this state, the seventh fastening sections 57c, the eighth fastening sections 58c and the fourth mounting tabs 45b are fixed by the fourth mooring link 64, for example the rivet.

[0294] This fixes the seventh sprocket 57 and the eighth sprocket 58 to the second sprocket mounting section 45 by means of a rivet engagement, as described above.

[0295] By installing the rear multiple sprockets 41 on the sprocket mounting link 39, the sprocket support link 40, which is made from the single metallic plate, supports the first to eighth rear sprockets 51, 52, 53, 54, 55, 56, 57, 58.

[0296] This enables the rear sprocket assembly 28 to reduce weight and improve production efficiency, since the number of sprocket support links 40 is smaller than the number of conventional sprocket support links and the sprocket support link 40 can be easily formed.

[0297] The rear sprocket assembly 28 is also able to selectively improve the flexibility of the material, since the sprocket support link 40 is a separate link from the first to eighth rear sprockets 51, 52, 53, 54, 55, 56, 57, 58. Other embodiments

[0298] (A) In the embodiment, it was explained that, for example, the fourth sprocket mounting section 45 of the sprocket support link 40 may have a hub engagement profile 45f.

[0299] As in Fig.As shown in Figure 8, not only the fourth sprocket mounting section 45 of the sprocket support link 40, but also the first sprocket 51 can have a hub engagement profile 42f.

[0300] In this case, the hub engagement profile 42f of the first sprocket 51 is formed in a spline hole. This allows the rear sprocket assembly 28 to engage with the rear hub assembly 29 (e.g., the sprocket mounting link 39) via the hub engagement profile 42f of the first sprocket 51 and the hub engagement profile 45f of the fourth sprocket mounting section 45 of the sprocket support link 40.

[0301] (B) In the embodiment, designs are implemented such that each of the first to fourth mooring links 61, 62, 63, 64 includes a rivet. Instead of this, at least one of the first to fourth mooring links 61, 62, 63, 64 may have or contain an adhesive. For example, each of the first to fourth mooring links 61, 62, 63, 64 may contain an adhesive. General interpretation of the terms

[0302] Regarding the understanding of the scope of the present invention, the terms "comprehensive" and its derivatives, as used herein, are to be understood as open terms that specify the presence of the mentioned features, elements, components, groups, integers, and / or steps, but do not exclude the presence of other unmentioned features, elements, components, groups, integers, and / or steps. The foregoing also applies to words with similar meanings, such as "include," "exhibit," and their derivatives. Furthermore, the terms "part," "section," "distance," "link," or "element," when used in the singular, can have the plural meaning of a single part or a plurality of parts.As used herein, the following directional terms, "forward," "backward," "upward," "downward," "vertical," "horizontal," "down," "lateral," "inward," "outward," and any other directional terms, refer to such directions of the bicycle multi-chainring assembly in a state in which the bicycle multi-chainring assembly is mounted to a bicycle. Accordingly, these terms, as used herein to describe the present technology, should be interpreted relative to the bicycle multi-chainring assembly.

[0303] The term “designed”, as used herein, comprises a component, section or part of a device and implies the existence of other unclaimed or unnamed components, sections, links or parts of the device to perform a desired function.

[0304] The terms of magnitude such as "essentially", "by" and "approximately", as used herein, have the meaning of a reasonable amount of deviation of the modified term, such that the final result is not significantly altered.

[0305] While only selected embodiments have been chosen to illustrate the present technology, it will be apparent to a person skilled in the art from this disclosure that various changes and modifications can be made without deviating from the scope of the technology as described by the appended claims. For example, the size, shape, location, or orientation of the various components can be changed if required and / or desired. The components shown to be directly connected or in contact may include intermediate structures arranged between them. The functions of one element can be performed by two, and vice versa. The structure and functions of one embodiment can be adapted to another embodiment. It is not necessary for all advantages to be present simultaneously in a particular embodiment.Each feature that is unique in relation to the prior art, alone or in combination with other features, shall be considered a separate description of further technologies by the applicant, including the structural and / or functional concepts implemented by such features. Consequently, the descriptions of embodiments according to the present technology are provided for illustrative purposes only and not for the purpose of limiting the technology as defined by the attached claims and their equivalents.

Claims

[1] Bicycle multiple chainring assembly, having a pivot axis (C1) comprising the bicycle multiple chainring assembly: a sprocket support link (40) made from a single metallic plate, wherein each section of the sprocket support link (40) is formed by deforming the single metallic plate; the sprocket support link (40) includes a first sprocket mounting section (42), a second sprocket mounting section (43) which is spaced apart from the first sprocket mounting section (42) in an axial direction parallel to the axis of rotation (C1), and a first connecting section (46) which connects the first sprocket mounting section (42) and the second sprocket mounting section (43); the first sprocket mounting section (42) has a first bicycle-inward directed surface (42e) and a first bicycle-outward directed surface (42d), opposite the first bicycle-inward directed surface (42e) in the axial direction; the second sprocket mounting section (43) has a second bicycle-inward directed surface (43e) and a second bicycle-outward directed surface (43d), opposite the second bicycle-inward directed surface (43e) in the axial direction; a first sprocket (51) comprising a first sprocket body (51a) and a plurality of first sprocket teeth (51b) extending radially outwards from the first sprocket body (51a) with respect to the axis of rotation (C1), wherein the first sprocket (51) is a separate link from the sprocket support link (40), the first sprocket body (51a) is coupled to a first bicycle-inward directed surface (42e) of the first sprocket mounting section (42) and the first bicycle-outward directed surface (42d) of the first sprocket mounting section (42); a second sprocket (52) including a second sprocket body (52a) and a plurality of second sprocket teeth (52b) extending radially outwards from the second sprocket body (52a) with respect to the axis of rotation (C1), wherein the second sprocket (52) is a separate link from the sprocket support link (40), the second sprocket body (52a) being coupled to the other by the first bicycle-inward directed surface (42e) of the first sprocket mounting section (42) and the first bicycle-outward directed surface (42d) of the first sprocket mounting section (42); a third sprocket (53) comprising a third sprocket body (53a) and a plurality of third sprocket teeth (53b) extending radially outwards from the third sprocket body (53a) with respect to the axis of rotation (C1), wherein the third sprocket (53) is a separate link from the sprocket support link (40), the third sprocket body (53a) is coupled to a second bicycle-inward facing surface (43e) of the second sprocket mounting section (43) and the second bicycle-outward facing surface (43d) of the second sprocket mounting section (43); and a fourth sprocket (54) comprising a fourth sprocket body (54a) and a plurality of fourth sprocket teeth (54b) extending radially outwards from the fourth sprocket body (54a) with respect to the axis of rotation (C1), wherein the fourth sprocket (54) is a separate link from the sprocket support link (40), the fourth sprocket body (54a) is coupled to the other by the second bicycle-inward facing surface (43e) of the second sprocket mounting section (43) and the second bicycle-outward facing surface (43d) of the second sprocket mounting section (43); and wherein the first sprocket body (51a) is coupled to the first bicycle-inward facing surface (42e) of the first sprocket mounting section (42); and the second sprocket body (52a) is / will be coupled to the first bicycle-outward directed surface (42d) of the first sprocket mounting section (42). [2] Bicycle multi-chainwheel arrangement according to claim 1, in which the chainwheel support member (40) further comprises a third chainwheel mounting section (44) which is / will be axially spaced from the second chainwheel mounting section (43), and a second connecting section (47) which connects the second chainwheel mounting section (43) and the third chainwheel mounting section (44); the third sprocket mounting section (44) has a third bicycle-inward directed surface (44e) and a third bicycle-outward directed surface (44d), axially opposite the third bicycle-inward directed surface (44e); and the bicycle multi-chainring arrangement further includes: a fifth sprocket (55) comprising a fifth sprocket body (55a) and a plurality of fifth sprocket teeth (55b) extending radially outwards from the fifth sprocket body (55a) with respect to the axis of rotation (C1), wherein the fifth sprocket (55) is a separate link from the sprocket support link (40), the fifth sprocket body (55a) is coupled to a third bicycle-inward facing surface (44e) of the third sprocket mounting section (44) and the third bicycle-outward facing surface (44d) of the third sprocket mounting section (44); and a sixth sprocket (56) comprising a sixth sprocket body (56a) and a plurality of sixth sprocket teeth (56b) extending radially outwards from the sixth sprocket body (56a) with respect to the axis of rotation (C1), wherein the sixth sprocket (56) is a separate link from the sprocket support link (40), the sixth sprocket body (56a) being coupled to the other by the third bicycle-inward directed surface (44e) of the third sprocket mounting section (44) and the third bicycle-outward directed surface (44d) of the third sprocket mounting section (44). [3] Bicycle multi-chainwheel arrangement according to claim 2, in which the chainwheel support member (40) further comprises a fourth chainwheel mounting section (45) which is / will be spaced apart from the third chainwheel mounting section (44) in the axial direction, and a third connecting section (48) which connects the third chainwheel mounting section (44) and the fourth chainwheel mounting section (45); the fourth sprocket mounting section (45) has a fourth bicycle-inward directed surface (45e) and a fourth bicycle-outward directed surface (45d) opposite the fourth bicycle-inward directed surface (44e) in the axial direction; and the bicycle multi-chainring arrangement further includes: a seventh sprocket (57) comprising a seventh sprocket body (57a) and a plurality of seventh sprocket teeth (57b) extending radially outwards from the seventh sprocket body (57a) with respect to the axis of rotation (C1), wherein the seventh sprocket (57) is a separate link from the sprocket support link (40), the seventh sprocket body (57a) is coupled to a fourth bicycle-inward directed surface (45e) of the fourth sprocket mounting section (45) and the fourth bicycle-outward directed surface (45d) of the fourth sprocket mounting section (45); an eighth sprocket (58) comprising an eighth sprocket body (58a) and a plurality of eighth sprocket teeth (58b) extending radially outwards from the eighth sprocket body (58a) with respect to the axis of rotation (C1), wherein the eighth sprocket (58) is a separate link from the sprocket support link (40), the eighth sprocket body (58a) being connected to the other by the fourth bicycle-inward facing surface (45e) of the fourth sprocket mounting section (45) and the fourth bicycle-outward directed surface (45d) of the fourth chain wheel assembly section (45) is / will be coupled. [4] Bicycle multiple chainring arrangement according to claim 1, in which at least one part of the first chainring mounting section (42) is arranged radially outwards from the second chainring mounting section (43) with respect to the axis of rotation (C1); the first sprocket has a (51) first total number of teeth and the first sprocket body (51a) is coupled to the first bicycle-inward directed surface (42e) of the first sprocket mounting section (42); the second sprocket (52) has a second total number of teeth that is smaller than the first total number of teeth, and the second sprocket body (52a) is / will be coupled to the first bicycle-outward facing surface (42d) of the first sprocket mounting section (42); the third sprocket (53) has a third total number of teeth that is smaller than the second total number of teeth, and the third sprocket body (53a) is coupled to the second bicycle-inward facing surface (43e) of the second sprocket mounting section (43); and the fourth sprocket (54) has a fourth total number of teeth which is smaller than the third total number of teeth and the fourth sprocket body (54a) is coupled to the second bicycle-outward directed surface (43d) of the second sprocket mounting section (43). [5] Bicycle multiple chainring arrangement according to claim 4, in which at least one part of the second chainring mounting section (43) is arranged radially outwards from the third chainring mounting section (44) with respect to the axis of rotation (C1); the fifth sprocket (55) has a fifth total number of teeth that is smaller than the fourth total number of teeth and the fifth sprocket body (55a) is coupled to the third bicycle-inward facing surface (44e) of the third sprocket mounting section (44); and the sixth sprocket (56) has a sixth total number of teeth which is smaller than the fifth total number of teeth and the sixth sprocket body (56a) is coupled to the third bicycle-outward directed surface (44d) of the third sprocket mounting section (44). [6] Bicycle multiple chainring arrangement according to claim 5, in which at least one part of the third chainring mounting section (44) is arranged radially outwards from the fourth chainring mounting section (45) with respect to the axis of rotation (C1); the seventh sprocket (57) has a seventh total number of teeth that is smaller than the sixth total number of teeth, and the seventh sprocket body (57a) is coupled to the fourth bicycle-inward facing surface (45e) of the fourth sprocket mounting section (45); and the eighth sprocket (58) has an eighth total number of teeth which is smaller than the seventh total number of teeth and the eighth sprocket body (58a) is coupled to the fourth bicycle-outward directed surface (45d) of the fourth sprocket mounting section (45). [7] Bicycle multiple chainring arrangement according to one of claims 1 to 5, wherein the first chainring (51) has a hub engagement profile (42f). [8] Bicycle multiple chainring arrangement according to claim 4, wherein the fourth chainring mounting section (45) has a hub engagement profile (45f). [9] Bicycle multiple chainring arrangement according to claim 1, in which the first chainring body (51a) of the first chainring (51) is coupled to the first bicycle-inward directed surface (42e) of the first chainring mounting section (42) of the chainring support link (40) by a first mooring link (61) which is a separate link from the chainring support link (40), the first chainring (51) and the second chainring (52). [10] Bicycle multiple chainring arrangement according to claim 9, in which the second chainring body (52a) of the second chainring (5) is coupled to the first bicycle-outward directed surface (42d) of the first chainring mounting section (42) of the chainring support link (40) by the first mooring link (61). [11] Bicycle multiple chainring arrangement according to claim 1, in which the third chainring body (53a) of the first chainring (51) is coupled to the second bicycle-inward directed surface (43e) of the second chainring mounting section (43) of the chainring support link (40) by a second mooring link (62) which is a separate link from the chainring support link (40), the third chainring (53) and the fourth chainring (54). [12] Bicycle multiple chainring arrangement according to claim 11, in which the fourth chainring body (54a) of the fourth chainring (54) is coupled to the second bicycle-outward directed surface (43d) of the second chainring mounting section (43) of the chainring support link (40) by the second mooring link (62). [13] Bicycle multiple chainring arrangement according to claim 2, in which the fifth chainring body (55a) of the fifth chainring (55) is coupled to the third bicycle-inward directed surface (44e) of the third chainring mounting section (44) of the chainring support link (40) by a third mooring link (63) which is a separate link from the chainring support link (40), the fifth chainring (55) and the sixth chainring (56). [14] Bicycle multiple chainring arrangement according to claim 13, in which the sixth chainring body (56a) of the sixth chainring (56) is coupled to the third bicycle-outward directed surface (44d) of the third chainring mounting section (44) of the chainring support link (40) by the third mooring link (63). [15] Bicycle multiple chainring arrangement according to claim 3, in which the seventh chainring body (57a) of the seventh chainring (57) is coupled to the fourth bicycle-inward directed surface (45e) of the fourth chainring mounting section (45) of the chainring support link (40) by a fourth mooring link (64) which is a separate link from the chainring support link (40), the seventh chainring (57) and the eighth chainring (58). [16] Bicycle multiple chainring arrangement according to claim 15, in which the eighth chainring body (58a) of the eighth chainring (58) is coupled to the fourth bicycle-outward directed surface (45d) of the fourth chainring mounting section (45) of the chainring support link (40) by the fourth mooring link (64). [17] Bicycle multiple chainring arrangement according to any one of claims 9 to 16, wherein one or more of the first mooring link (61) the second mooring link (62) the third mooring link (63) and the fourth mooring link (64) includes a rivet and / or adhesive. [18] Bicycle multiple chainring arrangement according to one of claims 6 or 8 to 17, wherein the first connecting section (46) does not extend parallel to the first chainring mounting section (42) and the second chainring mounting section (43) by deforming the chainring support member (40). [19] Bicycle multiple chainring arrangement according to one of claims 1, 4 to 6 or 9 to 12, in which the chainring support member (40) further comprises a third chainring mounting section (44) which is / will be spaced apart in the axial direction from the second chainring mounting section (43), and a second connecting section (47) which connects the second chainring mounting section (43) and the third chainring mounting section (44); and the second connecting section (47) extends non-parallel to the second chainring mounting section (43) and the third chainring mounting section (44) by deformation of the chainring support member (40). [20] Bicycle multi-chainwheel arrangement according to one of claims 4 to 6 or 10 to 15, in which the chainwheel support member (40) further comprises a fourth chainwheel mounting section (45) which is / will be spaced axially apart from the third chainwheel mounting section (44), and a third connecting section (48) which connects the third chainwheel mounting section (44) and the fourth chainwheel mounting section (45); and the third connecting section (48) extends non-parallel to the third chainwheel mounting section (44) and the fourth chainwheel mounting section (45) by deformation of the chainwheel support member (40). [21] Bicycle multiple chainring arrangement according to one of claims 6 or 8-16, wherein the first chainring mounting section (42) includes a first base section (42a) and at least one first mounting tab (42b). [22] Bicycle multiple chainring arrangement according to claim 21, in which the second chainring mounting section (43) includes a second base section (43a) and at least a second mounting tab (43b), in particular the at least one first mounting tab (42b) is offset from the at least one second mounting tab (43b) in a circumferential direction with respect to the axis of rotation (C1). [23] Bicycle multi-chainwheel arrangement according to claim 22, in which the chainwheel support member (40) further includes a third chainwheel mounting section (44) which is / is spaced apart from the second chainwheel mounting section (44) in the axial direction; and the third chainwheel mounting section (44) includes a third base section (44a) and at least one third mounting tab (44b), in particular the at least one first mounting tab (42b), the at least one second mounting tab (43b) and the at least one third mounting tab (44b) are offset from each other in a circumferential direction with respect to the axis of rotation (C1). [24] Bicycle multi-chainwheel arrangement according to claim 23, in which the chainwheel support member (40) further comprises a fourth chainwheel mounting section (45) which is / is axially spaced from the third chainwheel mounting section (44); and the fourth chainwheel mounting section (45) comprises a fourth base section (45a) and at least a fourth mounting tab (45b), in particular the at least one first mounting tab (42b), the at least one second mounting tab (43b), the at least one third mounting tab (44b) and the at least one fourth mounting tab (45b) are offset from each other in a circumferential direction with respect to the axis of rotation (C1).

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