DE102018111280A1 - REAR BIKE CHAIN ASSEMBLY - Google Patents

Abstract

Rear bicycle sprocket assembly includes multiple sprockets and a sprocket carrier. The plurality of sprockets include a first sprocket and a second sprocket. The first sprocket has at least one circumferential connection point. The first sprocket is connected to a radially extending surface of at least one of a plurality of sprocket attachment portions at the at least one circumferential connection point. The second sprocket has at least one additional circumferential connection point. The second sprocket is connected at the at least one additional circumferential connection point to at least one of the sprocket carrier and one of the plurality of sprockets. A total number of the at least one perimeter connection point is different from a total number of the at least one additional perimeter connection point.

Description

BACKGROUND OF THE INVENTION

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority to US Patent Applications filed on May 30, 2017, with the application number US 15 / 608,924 and US 15 / 608,915 US Patent Application filed on Aug. 9, 2017 US 15 / 673,346 , filed on August 25, 2017 US patent applications US 15 / 686,177 and US 15 / 686,179 US Patent Application filed Sep. 22, 2017 US 15 / 712,388 and the US patent application US 15 / 712,407 US Patent Application filed December 22, 2017 US 15 / 851,781 and U.S. Patent Application 15 / 851,785 , and submitted on January 24, 2018 U.S. Patent Application No. 15 / 879,353 , The contents of these applications are incorporated herein by reference in their entirety.

FIELD OF THE INVENTION

The present invention relates to a rear bicycle sprocket assembly.

DISCUSSION OF THE BACKGROUND

Cycling is becoming an increasingly popular form of recreational activity as well as a means of transport. In addition, cycling has become a very popular competitive sport for amateurs and professionals. Whether the bicycle is used for leisure, transportation or competition, the bicycle industry is constantly improving the various components of the bicycle. One bicycle component that has been extensively revised is a sprocket.

SUMMARY OF THE INVENTION

According to a first aspect of the present invention, a rear bicycle sprocket assembly includes a plurality of sprockets and a sprocket carrier. The plurality of sprockets include a first sprocket and a second sprocket. The sprocket carrier includes a plurality of sprocket mounting portions. At least one of the plurality of sprocket attachment portions has a radially extending surface and an axially extending surface. The radially extending surface extends radially with respect to a rotational center axis of the rear bicycle sprocket assembly. The axially extending surface extends axially with respect to the rotational center axis from the radially extending surface. The first sprocket has at least one circumferential connection point. The first sprocket is connected to the radially extending surface of at least one of the plurality of sprocket mounting portions at the at least one circumferential connection point. The second sprocket has at least one additional circumferential connection point. The second sprocket is connected to at least one additional circumferential connection point with at least one of the sprocket carriers and one of the plurality of sprockets. A total number of the at least one perimeter connection point is different from a total number of the at least one additional perimeter connection point.

With the rear bicycle sprocket assembly according to the first aspect, it is possible to save a weight of the rear bicycle sprocket assembly while improving the balance of rigidity of the rear bicycle sprocket assembly.

According to a second aspect of the present invention, the rear bicycle sprocket assembly is arranged such that the total number of the at least one additional circumferential connection point is greater than the total number of the at least one peripheral connection point.

With the rear bicycle sprocket assembly according to the second aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of rigidity of the rear bicycle sprocket assembly.

According to the third aspect of the present invention, the bicycle rear sprocket assembly is initially arranged to have a maximum tooth bottom diameter. The second sprocket has an additional maximum tooth diameter that is greater than the maximum tooth diameter of the first sprocket.

With the rear bicycle sprocket assembly according to the third aspect, it is possible to save the weight of the rear bicycle sprocket assembly while improving the balance of rigidity of the rear bicycle sprocket assembly on one side of a larger sprocket.

According to a fourth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to third aspects is arranged such that the plurality of sprocket mounting portions each have the radially extending surface extending radially with respect to the rotational center axis and the axially extending surface. which axially extends with respect to the rotational center axis from the radially extending surface.

With the rear bicycle sprocket assembly according to the fourth aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of rigidity of the rear bicycle sprocket assembly.

According to a fifth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to fourth aspects further comprises at least one fastener. The first sprocket is connected to the radially extending surface of the at least one of the plurality of sprocket mounting portions at the at least one circumferential connection point by means of the at least one fastener.

With the rear bicycle sprocket assembly according to the fifth aspect, it is possible to further improve the rigidity of the rear bicycle sprocket assembly.

According to a sixth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first to fifth aspects further comprises a plurality of fasteners. The at least one circumferential connection point comprises a plurality of circumferential connection points. The first sprocket is connected to the radially extending surface of the at least one of the plurality of sprocket mounting portions at the plurality of circumferential connection points by the plurality of fasteners.

With the rear bicycle sprocket assembly according to the sixth aspect, it is possible to further improve the rigidity of the rear bicycle sprocket assembly.

According to a seventh aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to sixth aspects is arranged so that the second sprocket is connected to at least one of the plurality of sprockets at the at least one additional circumferential connection point.

With the rear bicycle sprocket assembly according to the seventh aspect, it is possible to further save the weight of the rear bicycle sprocket assembly.

According to an eighth aspect of the present invention, the bicycle rear sprocket assembly according to the seventh aspect further comprises at least one fastener. The second sprocket is connected to the at least one additional circumferential connection point by means of the at least one fastening element with the one of the plurality of sprockets.

With the rear bicycle sprocket assembly according to the eighth aspect, it is possible to further save the weight of the rear bicycle sprocket assembly.

According to a ninth aspect of the present invention, the bicycle rear sprocket assembly according to the seventh aspect further comprises a plurality of fasteners. The at least one additional circumferential connection point comprises a plurality of additional circumferential connection points. The second sprocket is connected to the one of the plurality of sprockets at the plurality of additional circumferential connection points by means of the plurality of fasteners.

With the rear bicycle sprocket assembly according to the ninth aspect, it is possible to further save the weight of the rear bicycle sprocket assembly. It is also possible to improve the rigidity of the rear bicycle sprocket assembly.

According to a tenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to sixth aspects is arranged so that the second sprocket is connected to the sprocket carrier at the at least one additional peripheral connection point.

With the rear bicycle sprocket assembly according to the tenth aspect, it is possible to further improve the rigidity of the rear bicycle sprocket assembly.

According to an eleventh aspect of the present invention, the bicycle rear sprocket assembly according to the tenth aspect further comprises at least one fastener. The second sprocket is / is connected to the sprocket carrier at the at least one additional circumferential connection point by means of the at least one fastener.

With the rear bicycle sprocket assembly according to the eleventh aspect, it is possible to further improve the rigidity of the rear bicycle sprocket assembly.

According to a twelfth aspect of the present invention, the rear bicycle sprocket assembly according to the tenth aspect further comprises a plurality of fasteners. The at least one additional circumferential connection point comprises a plurality of additional circumferential connection points. The second sprocket is connected to the sprocket carrier at the plurality of additional circumferential connection points by means of the plurality of fasteners.

With the rear bicycle sprocket assembly according to the twelfth aspect, it is possible to further improve the rigidity of the rear bicycle sprocket assembly.

According to a thirteenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to twelfth aspects is arranged such that the sprocket carrier includes a middle portion and a plurality of sprocket mounting arms that extend radially outward from the central portion with respect to the rotational center axis. The plurality of sprocket mounting portions are provided on the plurality of sprocket mounting arms, respectively. The total number of the plurality of additional circumferential connection points is larger than a total number of the plurality of sprocket mounting portions.

With the rear bicycle sprocket assembly according to the thirteenth aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of rigidity of the rear bicycle sprocket assembly.

According to a fourteenth aspect of the present invention, the rear bicycle sprocket assembly according to the thirteenth aspect is arranged so that the middle portion of the sprocket carrier has a hub engagement profile.

With the bicycle rear sprocket assembly according to the fourteenth aspect, it is possible to effectively transmit a driving force to a wheel.

According to a fifteenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to fourteenth aspects is arranged such that the plurality of sprockets further comprises a third sprocket and a fourth sprocket.

With the rear bicycle sprocket assembly according to the fifteenth aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of rigidity of the rear bicycle sprocket assembly in a multiple rear sprocket assembly.

According to a sixteenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to fifteenth aspects is arranged so that the first sprocket is made of titanium.

With the rear bicycle sprocket assembly according to the sixteenth aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of rigidity of the rear bicycle sprocket assembly.

According to a seventeenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to sixteenth aspects is arranged so that the second sprocket is made of aluminum.

With the rear bicycle sprocket assembly according to the seventeenth aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of rigidity of the rear bicycle sprocket assembly.

According to an eighteenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to seventeenth aspects is arranged such that the plurality of sprocket mounting portions are offset from each other in a radial direction with respect to the rotational center axis.

With the bicycle rear sprocket assembly according to the eighteenth aspect, it is possible to effectively arrange the plurality of sprockets on the sprocket carrier.

According to a nineteenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to eighteenth aspects is arranged such that the total number of the at least one additional circumferential connection point is twice the total number of the at least one peripheral connection point.

With the rear bicycle sprocket assembly according to the nineteenth aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of rigidity of the rear bicycle sprocket assembly.

According to a twentieth aspect of the present invention, a rear bicycle sprocket assembly includes a first sprocket, a second sprocket, a third sprocket, at least one fastener, and a sprocket carrier. The first sprocket has a first maximum tooth bottom diameter. The second sprocket has a second maximum tooth bottom diameter that is smaller than the first maximum tooth bottom diameter of the first sprocket. The third sprocket has a third maximum tooth bottom diameter greater than the first maximum tooth bottom diameter of the first sprocket. The sprocket carrier comprises a middle one Portion and a plurality of sprocket mounting arms extending radially outwardly from the central portion with respect to a rotational center axis of the rear bicycle sprocket assembly. The sprocket carrier includes a first peripheral sprocket mounting portion and a second peripheral sprocket mounting portion. The first peripheral sprocket mounting portion is provided on the plurality of sprocket mounting arms. The second peripheral sprocket mounting portion is provided on the plurality of sprocket mounting arms and disposed radially inwardly of the first peripheral sprocket mounting portion with respect to the rotational center axis. The first peripheral sprocket mounting portion is configured to support the first sprocket. The second peripheral sprocket mounting portion is configured to support the second sprocket. The third sprocket is configured to be connected to the first sprocket using the at least one fastener. The first sprocket is disposed in an axial direction with respect to the rotational center axis between the second sprocket and the third sprocket. The twentieth aspect of the present invention may be combined with any one of the first to nineteenth aspects.

With the rear bicycle sprocket assembly according to the twentieth aspect, it is possible to save a weight of the rear bicycle sprocket assembly in a multiple rear sprocket assembly.

According to a twenty-first aspect of the present invention, the rear bicycle sprocket assembly according to the twentieth aspect is arranged such that the first peripheral sprocket mounting portion has a first radially extending surface extending radially with respect to the rotational center axis and a first axially extending surface extending axially extends with respect to the rotational center axis. The second peripheral sprocket mounting portion has a second radially extending surface that extends radially with respect to the rotational center axis and a second axially extending surface that extends axially with respect to the rotational center axis.

With the rear bicycle sprocket assembly according to the twenty-first aspect, it is possible to improve the rigidity of the rear bicycle sprocket assembly in the multiple rear sprocket assembly.

According to a twenty-second aspect of the present invention, the bicycle rear sprocket assembly according to the twentieth or twenty-first aspect further comprises at least a first attachment member and at least a second attachment member. The first sprocket has at least a first circumferential connection point and is connected at the at least one first circumferential connection point to the first peripheral sprocket attachment section by means of the at least one first fastening means. The second sprocket has at least one second peripheral connection point and is connected to the second peripheral sprocket attachment section by the at least one second attachment point using the at least one second attachment point.

With the rear bicycle sprocket assembly according to the twenty-second aspect, it is possible to save the weight of the rear bicycle sprocket assembly in the multiple rear sprocket assembly while improving the rigidity of the rear bicycle sprocket assembly in the multiple rear sprocket assembly.

According to a twenty-third aspect of the present invention, the rear bicycle sprocket assembly according to any one of the twentieth to twenty-second aspects further comprises at least one additional attachment member and a fourth sprocket configured to be attached to the third sprocket by the at least one additional attachment means. The third sprocket is disposed in the axial direction between the first sprocket and the fourth sprocket.

With the rear bicycle sprocket assembly according to the twenty-third aspect, it is possible to save the weight of the rear bicycle sprocket assembly in the multiple rear sprocket assembly while improving the rigidity of the rear bicycle sprocket assembly in the multiple rear sprocket assembly.

According to a twenty-fourth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the twentieth to twenty-third aspect is arranged such that the middle portion of the sprocket carrier has a hub engagement profile.

With the rear bicycle sprocket assembly according to the twenty-fourth aspect, it is possible to effectively transmit a driving force to a wheel.

According to a twenty-fifth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the twentieth to twenty-fourth aspects is arranged such that the first sprocket has at least a first circumferential connection point and is connected to the first peripheral sprocket attachment portion at the at least one first circumferential connection point. The second sprocket points at least one second circumferential connection point and is / is connected at the at least one second circumferential connection point with the second Umfangskettenradbefestigungsabschnitt. A total number of the at least one second peripheral connection point is equal to or larger than a total number of the at least one first peripheral connection point. The third sprocket has at least a third circumferential connection point and is connected to the first sprocket at the at least one third circumferential connection point. A total number of the at least one third peripheral connection point is larger than the total number of the at least one first peripheral connection point.

With the rear bicycle sprocket assembly according to the twenty-fifth aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of rigidity of the rear bicycle sprocket assembly.

According to a twenty-sixth aspect of the present invention, the rear bicycle sprocket assembly according to the twenty-fifth aspect is arranged such that the total number of the at least one third circumferential connection point is twice the total number of the at least one first circumferential connection point.

With the rear bicycle sprocket assembly according to the twenty-sixth aspect, it is possible to save the weight of the rear bicycle sprocket assembly while further improving the balance of the rigidity of the rear bicycle sprocket assembly.

list of figures

• 1 ist eine Seitenaufrissansicht einer hinteren Fahrradkettenradanordnung nach einer ersten Ausführungsform.
• 2 ist eine Querschnittsansicht der hinteren Fahrradkettenradanordnung entlang der Linie II-II von 1.
• 3 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 4 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 5 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 6 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 7 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 8 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 9 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 10 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 11 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 12 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 13 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 14 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 15 ist eine perspektivische Ansicht der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 16 ist eine perspektivische Ansicht eines Kettenradträgers der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 17 ist eine Seitenaufrissansicht des Kettenradträgers der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 18 ist eine weitere Seitenaufrissansicht der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 19 ist eine Querschnittsansicht der hinteren Fahrradkettenradanordnung entlang der Linie XIX-XIX von 18.
• 20 ist eine weitere Seitenaufrissansicht des in 13 dargestellten Kettenrads.
• 21 ist eine weitere Seitenaufrissansicht des in 14 dargestellten Kettenrads.
• 22 ist eine Seitenaufrissansicht einer hinteren Fahrradkettenradanordnung nach einer zweiten Ausführungsform.
• 23 ist eine Teilseitenansicht der in 22 dargestellten hinteren Fahrradkettenradanordnung.
• 24 ist eine Querschnittsansicht der hinteren Fahrradkettenradanordnung entlang der Linie XXIV-XXIV von 23.
• 25 ist eine Querschnittsansicht einer hinteren Fahrradkettenradanordnung nach einer Modifikation.

A more complete appreciation of the invention and many of the attendant advantages will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in conjunction with the accompanying drawings.

• 1 FIG. 10 is a side elevational view of a bicycle rear sprocket assembly according to a first embodiment. FIG.
• 2 is a cross-sectional view of the rear bicycle sprocket assembly taken along the line II-II of 1 ,
• 3 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 4 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 5 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 6 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 7 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 8th is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 9 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 10 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 11 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 12 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 13 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 14 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 15 is a perspective view of the in 1 illustrated rear bicycle sprocket assembly.
• 16 is a perspective view of a sprocket carrier in 1 illustrated rear bicycle sprocket assembly.
• 17 FIG. 11 is a side elevational view of the sprocket carrier of FIG 1 illustrated rear bicycle sprocket assembly.
• 18 is another side elevational view of the in 1 illustrated rear bicycle sprocket assembly.
• 19 FIG. 12 is a cross-sectional view of the bicycle rear sprocket assembly taken along line XIX-XIX of FIG 18 ,
• 20 is another side elevation view of the in 13 illustrated sprocket.
• 21 is another side elevation view of the in 14 illustrated sprocket.
• 22 FIG. 10 is a side elevational view of a bicycle rear sprocket assembly according to a second embodiment. FIG.
• 23 is a partial page view of the in 22 illustrated rear bicycle sprocket assembly.
• 24 FIG. 12 is a cross-sectional view of the bicycle rear sprocket assembly taken along line XXIV-XXIV of FIG 23 ,
• 25 FIG. 10 is a cross-sectional view of a bicycle rear sprocket assembly according to a modification. FIG.

DESCRIPTION OF THE EMBODIMENTS

The embodiment (s) will now be described with reference to the accompanying drawings, in which like reference characters designate corresponding or identical elements throughout the several drawings.

First embodiment

With initial reference to 1 has a rear bicycle sprocket assembly 10 according to a first embodiment, a plurality of sprockets SP on. The multiple sprockets SP include a first sprocket SP1 and a second sprocket SP2 , The multiple sprockets SP further comprise a third sprocket SP3 and a fourth sprocket SP4. The multiple sprockets SP further comprise the fifth to twelfth sprockets SP5 to SP12 , In this embodiment, the first to twelfth sprockets SP1 to SP12 also as sprockets SP1 to SP12 be designated. The third sprocket SP3 can be any sprocket made from the multiple sprockets SP3 to SP12 is selected, except the sprocket SP1 and the sprocket SP2 , The fourth sprocket SP4 can be any sprocket made from the multiple sprockets SP3 to SP12 is selected, except the sprocket SP1 , the sprocket SP2 and one as the sprocket SP3 selected sprocket.

The first sprocket SP1 can also act as a first sprocket SP1 be designated. The second sprocket SP2 can also act as a third sprocket SP2 be designated. The third sprocket SP3 can also act as a fourth sprocket SP3 be designated. The fourth sprocket SP4 Can also be used as a second sprocket SP4 be designated. The rear bicycle sprocket assembly 10 namely, includes the first sprocket SP1 , the second sprocket SP4 and the third sprocket SP2 , The rear bicycle sprocket assembly 10 further comprises the fourth sprocket SP3. The first sprocket SP1 can also be called the sprocket SP1 be designated. The second sprocket SP4 can also be called the sprocket SP4 be designated. The third sprocket SP2 can also be called the sprocket SP2 be designated. The fourth sprocket SP3 can also be called the sprocket SP3 be designated. The total number of sprockets SP1 to SP12 is not limited to this embodiment.

As in 1 to see has the rear Fahrradkettenradanordnung 10 a rotational center axis A1 on. The rear bicycle sprocket assembly 10 is through a rear bicycle hub assembly H with respect to a bicycle frame (not shown) about the rotational center axis A1 rotatably supported around. The rear bicycle sprocket assembly 10 is on a Kettenradstützkörper the rear bicycle hub assembly with a locking element H1 attached. The rear bicycle sprocket assembly 10 is set up with a bike chain C to engage a drive torque during pedal operation F1 between the bicycle chain C and the rear bicycle sprocket assembly 10 transferred to. The rear bicycle sprocket assembly 10 becomes about the rotational center axis during the pedal operation A1 around in a driving direction D11 turned. The driving direction of rotation D11 is along a circumferential direction D1 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 Are defined. A reverse direction D12 is an opposite direction of the driving direction D11 and is along the circumferential direction D1 Are defined.

In this embodiment, the sprocket SP3 the largest sprocket in the rear bicycle sprocket assembly 10 , The twelfth sprocket SP12 is the smallest sprocket in the rear bicycle sprocket assembly 10 , The first sprocket SP1 has a maximum tooth bottom diameter TD1 on. The maximum tooth bottom diameter TD1 can also be considered as a first maximum tooth bottom diameter TD1 be designated. The first sprocket SP1 namely, has the first maximum tooth bottom diameter TD1 on. The second sprocket SP2 has an additional maximum tooth bottom diameter TD2 greater than the maximum tooth bottom diameter TD1 of the first sprocket SP1 is. The additional maximum tooth bottom diameter TD2 Can also be the third maximum tooth bottom diameter TD2 be designated. The third sprocket SP2 namely has the third maximum tooth bottom diameter TD2 larger than the first maximum tooth bottom diameter TD1 of the first sprocket SP1 is. The second sprocket SP4 has a second maximum tooth bottom diameter TD4 smaller than the first maximum tooth bottom diameter TD1 of the first sprocket SP1 is. The third sprocket SP3 has an additional maximum tooth bottom diameter TD3 greater than the maximum tooth bottom diameter TD1 of the first sprocket SP1 is. The sprockets SP5 to SP12 each have the fifth to twelfth maximum tooth bottom diameter TD5 to TD12 on.

The dimensional relationship between the sprockets SP1 to SP12 is not limited to this embodiment. For example, the additional maximum tooth bottom diameter TD2 equal to or less than the maximum tooth bottom diameter TD1 of the first sprocket SP1 be. The second maximum tooth bottom diameter TD4 may be equal to or greater than the first maximum tooth bottom diameter TD1 of the first sprocket SP1 be.

As in 2 to see is the first sprocket SP1 in an axial direction D2 with respect to the rotational center axis A1 between the second sprocket SP4 and the third sprocket SP2 arranged. The third sprocket SP2 is in the axial direction D2 between the first sprocket SP1 and the fourth sprocket SP3 arranged. The second sprocket SP2 is in the axial direction D2 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 to the first sprocket SP1 without another sprocket between the first sprocket SP1 and the second sprocket SP2 , adjacent. The third sprocket SP3 is in the axial direction D2 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 to the second sprocket SP2 without another sprocket between the second sprocket SP2 and the third sprocket SP3 , adjacent. The fourth sprocket SP4 is in the axial direction D2 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 to the first sprocket SP1 without another sprocket between the first sprocket SP1 and the fourth sprocket SP4 , adjacent. The third sprocket SP3 , the second sprocket SP2 , the first sprocket SP1 , and the fourth to twelfth sprocket SP4 to SP12 are in this order in the axial direction D2 arranged.

In this embodiment, the sprockets are SP1 to SP12 separate elements. However, at least two of the sprockets can SP1 to SP12 be provided at least partially in one piece with each other. In particular, at least two of the sprockets SP1 to SP12 be provided integrally as a unitary, one-piece element. Alternatively, at least two of the sprockets SP1 to SP12 with at least one mechanical fastener, such as a rivet, or with an adhesive, diffusion bonding, and so on. The sprockets SP1 to SP12 are made of a metallic material. In this embodiment, the first sprocket SP1 made of titanium. The second sprocket SP2 is made of aluminum. The third sprocket SP3 is made of aluminum. The fourth sprocket SP4 is made of titanium. The materials of the first to twelfth sprockets SP1 to SP12 however, are not limited to this embodiment. At least one of the sprockets SP1 to SP12 may be made of another metallic material or a non-metallic material.

As in 3 to see includes the first sprocket SP1 a sprocket body SP1A and several sprocket teeth SP1B , The multiple sprocket teeth SP1B extend from the sprocket body SP1A with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 radially outward. A total number of teeth of the first sprocket SP1 (a total number of at least one sprocket tooth SP1B ) is 39th However, the total number of the plurality of sprocket teeth is SP1B of the first sprocket SP1 not limited to this embodiment.

The first sprocket SP1 includes several dental floors SP1C , The tooth bottom SP1C is between two adjacent sprocket teeth SP1B intended. The several tooth floors SP1C define a root circle RC1 with the maximum tooth bottom diameter TD1 , As used herein, the term "maximum tooth bottom diameter" is intended to be a diameter of a root circle defined by tooth bottoms, when the shapes of all tooth floors are identical, or a diameter of a maximum root circle defined by at least one tooth bottom, if tooth bottoms are included various forms are provided in a sprocket, so that a plurality of root circles are defined in the sprocket. The definition may apply to any sprocket in the first to twelfth sprockets SP1 to SP12 be applied.

As in 4 to see includes the second sprocket SP2 a sprocket body SP2A and several sprocket teeth SP2B , The multiple sprocket teeth SP2B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP2A radially outward. A total number of teeth of the second sprocket SP2 (a total number of at least one sprocket tooth) SP2B ) 45th The total number of multiple sprocket teeth SP2B of the second sprocket SP2 however, is not limited to this embodiment.

The second sprocket SP2 includes several dental floors SP2c , The tooth bottom SP2c is between two adjacent sprocket teeth SP2B intended. The several tooth floors SP2c define a root circle RC2 with the maximum tooth bottom diameter TD2 ,

As in 5 to see includes the third sprocket SP3 a sprocket body SP3A and several sprocket teeth SP3b , The multiple sprocket teeth SP3b extend from the sprocket body SP3A with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 radially to Outside. A total number of teeth of the third sprocket SP3 (a total number of at least one sprocket tooth SP3b ) 51st However, the total number of the plurality of sprocket teeth is SP3b of the third sprocket SP3 not limited to this embodiment.

The third sprocket SP3 includes several dental floors SP3c , The tooth bottom SP3c is between two adjacent sprocket teeth SP3b intended. The several tooth floors SP3c define a root circle RC3 with the maximum tooth bottom diameter TD3 ,

As in 6 to see includes the fourth sprocket SP4 a sprocket body SP4A and several sprocket teeth SP4B , The multiple sprocket teeth SP4B extend from the sprocket body SP4A with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 radially outward. A total number of teeth of the fourth sprocket SP4 (a total number of at least one sprocket tooth SP4B ) 33 , The total number of multiple sprocket teeth SP4B of the fourth sprocket SP4 however, is not limited to this embodiment.

The fourth sprocket SP4 has several dental floors SP4C on. The tooth bottom SP4C is between two adjacent sprocket teeth SP4B intended. The several tooth floors SP4C define a root circle RC4 with the maximum tooth bottom diameter TD4 ,

As in 7 to see includes the fifth sprocket SP5 a sprocket body SP5A and several sprocket teeth SP5B , The multiple sprocket teeth SP5B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP5A radially outward. A total number of teeth of the fifth sprocket SP5 (a total number of at least one sprocket tooth SP5B ) 28 , The total number of multiple sprocket teeth SP5B of the fifth sprocket SP5 however, is not limited to this embodiment.

The fifth sprocket SP5 includes several dental floors SP5C , The tooth bottom SP5C is between two adjacent sprocket teeth SP5B intended. The several tooth floors SP5C define a root circle RC5 with the maximum tooth bottom diameter TD5 ,

As in 8th to see includes the sixth sprocket SP6 a sprocket body SP6A and several sprocket teeth SP6B , The multiple sprocket teeth SP6B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP6A radially outward. A total number of teeth of the sixth sprocket SP6 (a total number of at least one sprocket tooth SP6B ) 24 , The total number of multiple sprocket teeth SP6B of the sixth sprocket SP6 however, is not limited to this embodiment.

The sixth sprocket SP6 includes several dental floors SP6C , The tooth bottom SP6C is between two adjacent sprocket teeth SP6B intended. The several tooth floors SP6C define a root circle RC6 with the maximum tooth bottom diameter TD6 ,

As in 9 to see includes the seventh sprocket SP7 a sprocket body SP7A and several sprocket teeth SP7B , The multiple sprocket teeth SP7B extend from the sprocket body SP7A with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 radially outward. A total number of teeth of the seventh sprocket SP7 (a total number of at least one sprocket tooth SP7B ) 21 , The total number of multiple sprocket teeth SP7B of the seventh sprocket SP7 however, is not limited to this embodiment.

The seventh sprocket SP7 includes several dental floors SP7C , The tooth bottom SP7C is between two adjacent sprocket teeth SP7B intended. The several tooth floors SP7C define a root circle RC7 with the maximum tooth bottom diameter TD7 ,

As in 10 to see includes the eighth sprocket SP8 a sprocket body SP8A and several sprocket teeth SP8B , The multiple sprocket teeth SP8B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP8A radially outward. A total number of teeth of the eighth sprocket SP8 (a total number of at least one sprocket tooth SP8B ) 21 , The total number of multiple sprocket teeth SP8B of the eighth sprocket SP8 however, is not limited to this embodiment.

The eighth sprocket SP8 includes several dental floors SP8C , The tooth bottom SP8C is between two adjacent sprocket teeth SP8B intended. The several tooth floors SP8C define a foot circle RC8 with the maximum tooth bottom diameter TD8 ,

As in 11 to see includes the ninth sprocket SP9 a sprocket body SP9A and several sprocket teeth SP9B , The multiple sprocket teeth SP9B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP9A radially outward. A total number of teeth of the ninth sprocket SP9 (a total number of at least one sprocket tooth SP9B ) 16 , The total number of multiple sprocket teeth SP9B of the ninth sprocket SP9 however, is not limited to this embodiment.

The ninth sprocket SP9 includes several dental floors SP9C , The tooth bottom SP9C is between two adjacent sprocket teeth SP9B intended. The several tooth floors SP9C define a root circle RC9 with the maximum tooth bottom diameter TD9 ,

As in 12 to see includes the tenth sprocket SP10 a sprocket body SP10A and several sprocket teeth SP10B , The multiple sprocket teeth SP10B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP10A radially outward. A total number of teeth of the tenth sprocket SP10 (a total number of at least one sprocket tooth SP10B ) 14 , The total number of multiple sprocket teeth SP10B of the tenth sprocket SP10 however, is not limited to this embodiment.

The tenth sprocket SP10 includes several dental floors SP10C , The tooth bottom SP10C is between two adjacent sprocket teeth SP10B intended. The several tooth floors SP10C define a root circle RC10 with the maximum tooth bottom diameter TD10 ,

As in 13 to see includes the eleventh sprocket SP11 a sprocket body SP11A and several sprocket teeth SP11B , The multiple sprocket teeth SP11B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP11A radially outward. A total number of teeth of the eleventh sprocket SP11 (a total number of at least one sprocket tooth SP11B ) 12 , However, the total number of the plurality of sprocket teeth is SP11B of the eleventh sprocket SP11 not limited to this embodiment.

The eleventh sprocket SP11 includes several dental floors SP11C , The tooth bottom SP11C is between two adjacent sprocket teeth SP11B intended. The several tooth floors SP11C define a root circle RC11 with the maximum tooth bottom diameter TD11 ,

As in 14 to see includes the twelfth sprocket SP12 a sprocket body SP12A and several sprocket teeth SP12B , The multiple sprocket teeth SP12B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP12A radially outward. A total number of teeth of the twelfth sprocket SP12 (a total number of at least one sprocket tooth SP12B ) 10 , The total number of multiple sprocket teeth SP12B of the twelfth sprocket SP12 however, is not limited to this embodiment.

The twelfth sprocket SP12 includes several dental floors SP12C , The tooth bottom SP12C is between two adjacent sprocket teeth SP12B intended. The several tooth floors SP12C define a root circle RC12 with the maximum tooth bottom diameter TD12 ,

As in 15 to see has the rear Fahrradkettenradanordnung 10 a sprocket carrier 12 on. The sprocket carrier 12 is one of the several sprockets SP separate element. As in 2 to see are the sprockets SP1 and SP4 to SP8 on the sprocket carrier 12 appropriate. In this embodiment, the sprocket carrier 12 made of aluminum. The sprocket carrier 12 however, it may be made of a metallic material other than aluminum or a non-metallic material such as a fiber reinforced plastic.

As in 16 To see, includes the sprocket carrier 12 a plurality of sprocket mounting sections 14A to 14E , At least one of the plurality of sprocket mounting portions 14A to 14E has a radially extending surface 16 and an axially extending surface 18 on. In this embodiment, the plurality of sprocket mounting portions 14A to 14E each the radially extending surface 16 and the axially extending surface 18 on. The sprocket attachment section 14A has the radially extending surface 16A and the axially extending surface 18A on. The sprocket attachment section 14B has the radially extending surface 16B and the axially extending surface 18B on. The sprocket attachment section 14C has the radially extending surface 16C and the axially extending surface 18C on. The sprocket attachment section 14D has the radially extending surface 16D and the axially extending surface 18D on. The sprocket attachment section 14E has the radially extending surface 16E and the axially extending surface 18E on.

The radially extending surface 16A extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18A extends axially from the radially extending surface 16A with respect to the rotational center axis A1 , The radially extending surface 16B extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending area 18B extends with respect to the rotational center axis A1 axially from the radially extending surface 16B , The radially extending surface 16C extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18C extends with respect to the rotational center axis A1 axially from the radially extending surface 16C , The radially extending surface 16D extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18D extends with respect to the rotational center axis A1 axially from the radially extending surface 16D , The radially extending surface 16E extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18E extends with respect to the rotational center axis A1 axially from the radially extending surface 16E , The radially extending surface 16A can also be considered a first radially extending surface 16A be designated. The axially extending surface 18A may also be considered a first axially extending surface 18A be designated. The radially extending surface 16B can also be considered a second radially extending surface 16B be designated. The axially extending surface 18B may also be considered a second axially extending surface 18B be designated.

In other words, the sprocket carrier 12 a first peripheral sprocket mounting portion 19A and a second peripheral sprocket mounting portion 19B on. The first peripheral sprocket attachment portion 19A is at the multiple sprocket mounting arms 22 intended. The second peripheral sprocket attachment portion 19B is at the multiple sprocket mounting arms 22 provided and is with respect to the rotational center axis A1 from the first peripheral sprocket mounting portion 19A arranged radially inwardly. The first peripheral sprocket attachment portion 19A is set up to the first sprocket SP1 to support. The second peripheral sprocket attachment portion 19B is set up to the second sprocket SP4 to support.

As in 17 The first circumferential sprocket mounting portion is shown in FIG 19A the first radially extending surface 16A and the first axially extending surface 18A , The first radially extending surface 16A extends radially with respect to the rotational center axis A1 , The first axially extending surface 18 ( 18A ) extends axially with respect to the rotational center axis A1 , In this embodiment, the first peripheral sprocket mounting portion 19A a plurality of first radially extending surfaces 16A and a plurality of first axially extending surfaces 18A on.

The second peripheral sprocket attachment portion 19B has the second radially extending surface 16B and the second axially extending surface 18B on. The second radially extending surface 16B extends radially with respect to the rotational center axis A1 , The second axially extending surface 18B extends axially with respect to the rotational center axis A1 , In this embodiment, the second peripheral sprocket mounting portion 19B a plurality of second radially extending surfaces 16B and a plurality of second axially extending surfaces 18B on.

As in 17 to see are the multiple sprocket mounting sections 14A to 14E in a radial direction with respect to the rotational center axis A1 offset from each other. The sprocket attachment section 14A is located radially outside the sprocket mounting section 14B , The sprocket attachment section 14B is located radially outside the sprocket mounting section 14C , The sprocket attachment section 14C is located radially outside the sprocket mounting section 14D , The sprocket attachment section 14D is located radially outside the sprocket mounting section 14E , The sprocket attachment sections 14A to 14E are along the sprocket mounting arm 22 arranged. The arrangement of the Kettenradbefestigungsabschnitte 14A to 14E is not limited to this embodiment.

As in 2 see, in this embodiment, the radially extending surface 16 substantially perpendicular to the rotational center axis A1 , The radially extending surface 16 However, with respect to the rotational center axis A1 be inclined. In this embodiment, the axially extending surface 18 substantially parallel to the rotational center axis A1 , The axially extending surface 18 However, with respect to the rotational center axis A1 be inclined. Further, the axially extending surface 18 directly with the radially extending surface 16 connected. The axially extending surface 18 however, may be from the radially extending surface 16 be spaced.

As in 16 To see, includes the sprocket carrier 12 a middle section 21 and a plurality of sprocket mounting arms 22 related to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the middle section 21 extend radially outward. The multiple sprocket attachment sections 14A to 14E are each on the sprocket mounting arms 22 intended. In this embodiment, the sprocket mounting portions 14A to 14E on the sprocket mounting arm 22 intended. The arrangement of the Kettenradbefestigungsabschnitte 14A to 14E however, is not limited to this embodiment.

The middle section 21 of the sprocket carrier 12 has a hub engagement profile 24 on. In this embodiment, the hub engagement profile comprises 24 a hub internal spline or a hub inner spline 26 , The hub internal spline 26 includes several internal splines or internal splines 28 configured to engage with a plurality of outer spline teeth (not shown) of the rear bicycle hub assembly H ( 2 ) to be engaged. The hub engagement profile 24 includes a hub internal spline 30 , The hub internal spline 30 includes several internal splines 31 for engagement with the plurality of outer splines (not shown) of the rear bicycle hub assembly H ( 2 ) are set up. The hub internal spline 30 is in the axial direction D2 from the hub internal spline 26 spaced. The hub internal spline 30 can with the hub inner spline 26 be connected. The structure of the hub engagement profile 24 however, is not limited to this embodiment. The hub engagement profile 24 can from the middle section 21 of the sprocket carrier 12 be omitted. The hub engagement profile 24 can have a different structure instead of or in addition to the inner hub splines 26 and 30 exhibit.

As in 18 to see includes the rear Fahrradkettenradanordnung 10 furthermore at least one fastening element 32 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several fasteners 32 , The first sprocket SP1 is on the sprocket carrier 12 using the multiple fasteners 32 attached. The total number of fasteners 32 is in this embodiment 6 , The total number of fasteners 32 however, is not limited to this embodiment. The fastener 32 is preferably made of a metallic material such as iron or titanium. The fastener 32 can also be made of aluminum. However, this can be at least one fastener 32 be made of a non-metallic material. In this embodiment, the fastening element comprises 32 a rivet. The fastener 32 however, instead of or in addition to the rivet, may comprise another fastener, such as an adhesive or diffusion bond.

The rear bicycle sprocket assembly 10 further comprises at least one fastening element 34 , The fastener 34 can also act as a fastener 34 be designated. The rear bicycle sprocket assembly 10 namely, includes at least one fastener 34 , In this embodiment, the rear bicycle sprocket assembly comprises 10 furthermore several fasteners (several fasteners) 34th The second sprocket SP2 is with the first sprocket SP1 over the several fasteners 34 (the multiple fasteners) connected. The third sprocket (the second sprocket) SP2 is set up to work with the first sprocket (the first sprocket) SP1 via the at least one fastening element (the at least one fastener) 34 to be connected / to be.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 36 , The additional fastening element 36 Can also be used as an additional fastener 36 be designated. The rear bicycle sprocket assembly 10 namely, further comprises at least one additional fastening element 36 , In this embodiment, the rear bicycle sprocket assembly comprises 10 also several additional fasteners (several additional fasteners) 36th The third sprocket SP3 is with the second sprocket SP2 by means of the several additional fastening elements 36 connected.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 38 , The additional fastening element 38 Can also be used as an additional fastener 38 be designated. The additional fastening element 38 Can also be used as a second fastener 38 be designated. The rear bicycle sprocket assembly 10 namely, further comprises at least one additional fastening element 32 and at least one second fastener 38 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners 38 , The sprocket SP4 is with the second sprocket carrier 12 using the several additional fasteners 38 connected.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 40 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners 40 , The sprocket SP5 is with the sprocket carrier 12 by means of the several additional fastening elements 40 connected.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 42 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners 42 , The sprocket SP6 is with the sprocket carrier 12 using the several additional fasteners 42 connected.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 44 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners 44 , The sprocket SP7 is with the sprocket carrier 12 using the several additional fasteners 44 connected.

The total number of fasteners 34 is in this embodiment 6 , The total number of fasteners 34 however, is not limited to this embodiment. The fastener 34 is preferably made of a metallic material such as iron or titanium. The fastener 34 can also be made of aluminum. However, this can be at least one fastener 34 be made of a non-metallic material. In this embodiment, the fastening element comprises 34 a rivet. The fastener 34 However, instead of the rivet or in addition to this another fastener, such. As an adhesive or diffusion bonding include.

The total number of fasteners 36 is 6. The total number of fasteners 36 however, is not limited to this embodiment. The fastener 36 is preferably made of a metallic material such as iron or titanium. The fastener 36 can also be made of aluminum. The at least one fastening element 36 however, it may be made of a non-metallic material. In this embodiment, the fastening element comprises 36 a rivet. The fastener 36 However, instead of the rivet or in addition to this another fastener, such. As an adhesive or diffusion bonding include.

A total number of additional fasteners 38 is 6th A total number of additional fasteners 40 is 6th A total number of additional fasteners 42 is 6th A total number of additional fasteners 44 is 6th However, the total number of additional fasteners is not limited to this embodiment. The material of the additional fastener is the same as the material of the fastener 34 and or 36 , Therefore, for the sake of brevity, they will not be described in detail here.

As in 17 to see includes the sprocket attachment portion 14A a mounting hole 20A at the radially extending surface 16A is provided. The sprocket attachment section 14B includes a mounting hole 20B at the radially extending surface 16B is provided. The sprocket attachment section 14C includes a mounting hole 20C at the radially extending surface 16C is provided. The sprocket attachment section 14D includes a mounting hole 20D at the radially extending surface 16D is provided. The sprocket attachment section 14E includes a mounting hole 20E at the radially extending surface 16E is provided. As in 2 to see the fastener extends 32 through the mounting hole 20A therethrough. The additional fastening element 38 extends through the mounting hole 20B therethrough. The additional fastening element 40 extends through the mounting hole 20C therethrough. The additional fastening element 42 extends through the mounting hole 20D therethrough. The additional fastening element 44 extends through the mounting hole 20E therethrough.

As in 3 to see, points the first sprocket SP1 at least one circumferential connection point CP1 on. The perimeter connection point CP1 may also be considered a first perimeter connection point CP1 be designated. The first sprocket SP1 namely, has at least a first circumferential connection point CP1 on. In this embodiment, the at least one circumferential connection point comprises CP1 several perimeter connection points CP1 , The perimeter connection points CP1 are in the circumferential direction D1 spaced apart. The perimeter connection points CP1 are provided in the same radial position and are at a constant pitch in the circumferential direction D1 intended. A total number of perimeter connection points CP1 is 6. The total number of perimeter connection points CP1 however, is not limited to this embodiment. The first sprocket SP1 includes several through holes SP1D , The perimeter connection point CP1 is in a middle of the through hole SP1D Are defined. As in 2 to see the fastener extends 32 through the through hole SP1D and the mounting hole 20A therethrough.

As in 18 to see is the first sprocket SP1 with the radially extending surface 16 ( 16 ) of at least one of the plurality of sprocket mounting portions 14A to 14E at the at least one circumferential connection point CP1 connected. In this embodiment, the first sprocket SP1 with the plurality of radially extending surfaces 16 ( 16 ) of the plurality of sprocket attachment portions 14A at the plurality of circumferential connection points CP1 connected. The first sprocket SP1 is with the radially extending surface 16 ( 16 ) of the at least one of the plurality of sprocket mounting portions 14A to 14E at the at least one circumferential connection point CP1 using the at least one fastener 32 connected. The first sprocket SP1 is with the radially extending surface 16 of the at least one of the several Kettenradbefestigungsabschnitte 14A to 14E at the plurality of circumferential connection points CP1 using the multiple fasteners 32 connected. In other words, the first sprocket SP1 is with the first Umfangseettenradbefestigungsabschnitt 19A at the at least one first circumferential connection point CP1 connected. The first sprocket SP1 is with the first Umfangseettenradbefestigungsabschnitt 19A at the at least one first circumferential connection point CP1 by means of the at least one first fastening element 32 connected. The perimeter connection point CP1 can through the fastener (the fastener) 32 be defined).

As in 4 to see, the second sprocket has SP2 at least one additional perimeter connection point CP2 on. The additional perimeter connection point CP2 can also act as a third peripheral connection point CP2 be designated. The third sprocket SP2 namely, has at least a third peripheral connection point CP2 on. In this embodiment, the at least one additional circumferential connection point comprises CP2 several additional perimeter connection points (several third perimeter connection points) CP2 , The additional perimeter connection points CP2 are in the circumferential direction D1 spaced apart. The additional perimeter connection points CP2 are provided in the same radial position and are at a constant pitch in the circumferential direction D1 intended. A total number of additional perimeter connection points CP2 is 12 , The total number of additional perimeter connection points CP2 however, is not limited to this embodiment. The second sprocket SP2 includes several through holes SP2D , The additional perimeter connection point CP2 is in a middle of the through hole SP2D Are defined.

As in 3 to see includes the first sprocket SP1 several additional through holes SPIE. The additional perimeter connection point CP2 is defined in a center of the additional through-hole SPIE. The additional through holes SPIE of the first sprocket SP1 are provided at positions corresponding to the through holes SP2D ( 4 ) of the second sprocket SP2 correspond.

As in 19 to see includes the rear Fahrradkettenradanordnung 10 several spacers SC1 in the axial direction D2 between the sprockets SP1 and SP2 are provided. The spacer SC1 includes a spacer hole SC1A , The fastener 34 extends through the additional through hole SP1E , the through holes SP2D and the spacer hole SC1A therethrough. The spacer SC1 can be integral with the fastener 34 be formed as a single, one-piece element.

As in 18 to see is the second sprocket SP2 at the at least one additional circumferential connection point CP2 with at least one of the sprocket carrier 12 and one of the several sprockets SP1 to SP12 connected. In this embodiment, the second sprocket SP2 with one of the several sprockets SP1 to SP12 at the at least one additional circumferential connection point CP2 connected. In this embodiment, the second sprocket SP2 at the at least one additional circumferential connection point CP2 with the first sprocket SP1 connected. In other words, the third sprocket SP2 at the at least one third circumferential connection point CP2 with the first sprocket SP1 connected. The second sprocket SP2 However, it may be connected to one of the plurality of sprockets at a different coupling point. The second sprocket SP2 can with the sprocket carrier 12 be connected.

The second sprocket SP2 is with the one of several sprockets SP1 to SP12 at the at least one additional circumferential connection point CP2 using the at least one fastener 34 connected. The second sprocket SP2 is with the first sprocket SP1 at the at least one additional circumferential connection point CP2 using the at least one fastener 34 connected. The second sprocket SP2 is with the one of the plurality of sprockets at the plurality of additional circumferential connection points using the plurality of fasteners 34 connected. The second sprocket SP2 is at the several additional perimeter junctions CP2 with the first sprocket SP1 using the multiple fasteners 34 connected. The additional perimeter connection point CP2 can through the fastener 34 be defined.

As in 18 a total number of the at least one perimeter connection point (the at least one first perimeter connection point) differs CP1 from a total of at least one additional Perimeter connection point (of the at least one third perimeter connection point) CP2 , In this embodiment, the total number of the at least one additional peripheral connection point (of the at least one third peripheral connection point) is CP2 greater than the total number of the at least one perimeter connection point (the at least one first perimeter connection point) CP1 , The total number of perimeter connection points CP1 is 6 , The total number of additional perimeter connection points CP2 is 12 , The total number of the at least one additional perimeter connection point (the at least one third perimeter connection point) CP2 is twice the total number of the at least one perimeter connection point (the at least one first perimeter connection point) CP1 , The total number of the at least one third perimeter connection point CP2 is twice the total number of the at least one first perimeter connection point CP1 ,

The relationship between the total number of the at least one perimeter connection point CP1 and the total number of the at least one additional perimeter connection point CP2 however, is not limited to this embodiment. The total number of the at least one perimeter connection point CP1 may be equal to or greater than the total number of the at least one additional perimeter connection point CP2 be. The total number of perimeter connection points CP1 is not limited to this embodiment. The total number of additional perimeter connection points CP2 is not limited to this embodiment.

The total number of multiple additional perimeter connection points CP2 is greater than a total number of the plurality of sprocket mounting portions 14A , The total number of multiple additional perimeter connection points CP2 is greater than a total number of the plurality of sprocket mounting arms 22 , The total number of multiple additional perimeter connection points CP2 however, may be equal to or smaller than the total number of the plurality of sprocket mounting portions 14A be. The total number of multiple additional perimeter connection points CP2 may be equal to or smaller than the total number of the plurality of sprocket mounting arms 22 be.

As in 5 to see, points the third sprocket SP3 at least one additional perimeter connection point CP3 on. In this embodiment, the at least one additional circumferential connection point comprises CP3 several additional perimeter connection points CP3 , The additional perimeter connection points CP3 are in the circumferential direction D1 spaced apart. The additional perimeter connection points CP3 are provided in the same radial position and are at a constant pitch in the circumferential direction D1 intended. A total number of additional perimeter connection points CP3 is 12 , The total number of additional perimeter connection points CP3 however, is not limited to this embodiment. The third sprocket SP3 includes several through holes SP3D , The additional perimeter connection point CP3 is in a middle of the through hole SP3D Are defined.

As in 4 to see includes the second sprocket SP2 several additional through holes SP2E , The additional perimeter connection point CP3 is in a middle of the additional through-hole SP2E Are defined. The additional through holes SP2E of the second sprocket SP2 are provided at positions corresponding to the through holes SP3D ( 4 ) of the third sprocket SP3 correspond.

As in 19 to see includes the rear Fahrradkettenradanordnung 10 several spacers SC2 between the sprockets SP2 and SP3 in the axial direction D2 are provided. The spacer SC2 includes a spacer hole SC2A , The fastener 36 extends through the additional through hole SP2E , the through holes SP3D and the spacer hole SC2A therethrough. The spacer SC2 can be integral with the fastener 36 be formed as a single, one-piece element.

As in 18 to see is the third sprocket SP3 at the at least one additional circumferential connection point CP3 with at least one of the sprocket carrier 12 and one of the several sprockets SP1 to SP12 connected. In this embodiment, the third sprocket is SP3 with one of the several sprockets SP1 to SP12 at the at least one additional circumferential connection point CP3 connected. In this embodiment, the third sprocket is SP3 with the second sprocket SP2 at the at least one additional circumferential connection point CP3 connected. However, the third sprocket SP3 be connected to the one of the plurality of sprockets at another coupling point. The third sprocket SP3 can with the sprocket carrier 12 be connected.

The third sprocket SP3 is with the one of several sprockets SP1 to SP12 at the at least one additional circumferential connection point CP3 using the at least one additional attachment means 36 connected. The third sprocket SP3 is with the second sprocket SP2 at the at least one additional circumferential connection point CP3 using the at least one additional attachment means 36 connected. The third sprocket SP3 is with the one of the plurality of sprockets at the plurality of additional circumferential connection points using the plurality of additional fasteners 36 connected. The third sprocket SP3 is at the several additional perimeter junctions CP3 with the second sprocket SP2 using the several additional fasteners 36 connected. In other words, the fourth sprocket SP3 set up to work on the third sprocket SP2 using the at least one additional attachment means 36 to be attached / to be. The fourth sprocket SP3 is set to work on the third sprocket SP2 using the several additional fasteners 36 to be attached / to be. The additional perimeter connection point CP3 may be defined by the additional fastener (the additional fastener) 36.

As in 18 to see, a total of the at least one perimeter connection point is different CP1 from a total of the at least one additional perimeter connection point CP3 , In this embodiment, the total number of the at least one peripheral connection point is CP1 less than the total number of the at least one additional perimeter connection point CP3 , The total number of perimeter connection points CP1 is 6 , The total number of additional perimeter connection points CP3 is 12 , The total number of at least one additional perimeter connection point CP3 is twice the total number of the at least one perimeter connection point CP1 , The relationship between the total number of the at least one perimeter connection point CP1 and the total number of the at least one additional perimeter connection point CP3 however, is not limited to this embodiment. The total number of the at least one perimeter connection point CP1 may be equal to or greater than the total number of the at least one additional perimeter connection point CP3 be. The total number of perimeter connection points CP1 is not limited to this embodiment. The total number of additional perimeter connection points CP3 is not limited to this embodiment.

The total number of multiple additional perimeter connection points CP3 is greater than a total number of the plurality of sprocket mounting portions 14A , The total number of multiple additional perimeter connection points CP3 is greater than a total number of the plurality of sprocket mounting arms 22 , The total number of multiple additional perimeter connection points CP3 however, may be equal to or smaller than the total number of the plurality of sprocket mounting portions 14A be. The total number of multiple additional perimeter connection points CP3 may be equal to or smaller than the total number of the plurality of sprocket mounting arms 22 be.

As in 6 to see, the fourth sprocket points SP4 at least one second circumferential connection point CP4 on. The second sprocket SP4 namely, has at least a second circumferential connection point CP4 on. In this embodiment, the second sprocket comprises SP4 several second circumferential connection points CP4 , The second circumferential connection points CP4 are in the circumferential direction D1 spaced apart. The second circumferential connection points CP4 are provided in the same radial position and are at a constant pitch in the circumferential direction D1 intended. A total of the second circumferential connection points CP4 is 6th The total number of second perimeter connection points CP4 however, is not limited to this embodiment. The second sprocket SP4 includes several through holes SP4D , The second circumferential connection point CP4 is in a middle of the through hole SP4D Are defined. As in 2 to see, the additional fastener extends 38 through the through hole SP4D and the mounting hole 20B therethrough.

As in 18 to see is the second sprocket SP4 with the radially extending surface 16 ( 16 ) At least one of the plurality of Kettenradbefestigungsabschnitte 14A to 14E at the at least one second circumferential connection point CP4 connected. In this embodiment, the second sprocket SP4 with the plurality of radially extending surfaces 16B ( 16 ) of the plurality of sprocket attachment portions 14B at the plurality of second circumferential connection points CP4 connected. The second sprocket SP4 is with the radially extending surfaces 16B ( 16 ) of the sprocket attachment sections 14B at the plurality of second circumferential connection points CP4 using the several additional fasteners 38 connected. In other words, the second sprocket SP4 is at the second Umfangskettenradbefestigungsabschnitt 19B at the at least one second peripheral connecting portion CP4 connected. The second sprocket SP4 is with the second Umfangskettenradbefestigungsabschnitt 19B at the at least one second peripheral connecting portion CP4 with the at least one second fastening element 38 connected. The second sprocket SP4 is with the second Umfangskettenradbefestigungsabschnitt 19B at the plurality of second circumferential connection points CP4 with the several second fasteners 38 connected. The additional circumferential connection point (the second circumferential connection point) CP4 can through the second fastener 38 be defined.

A total number of the at least one second perimeter connection point CP4 is equal to or greater than a total number of the at least one first circumference connection point CP1 , In this embodiment, the total number of the at least one second circumferential connection point is CP4 equal to the total number of the at least one first perimeter connection point CP1 , However, the total number of the at least one second perimeter connection point may be CP4 less than or greater than the total number of the at least one first perimeter connection point CP1 be.

The second circumferential connection point CP4 is radially inward from the peripheral connection point CP1 , the additional perimeter point CP2 and the additional perimeter connection point CP3 intended. The additional perimeter connection point CP2 and the additional perimeter connection point CP3 lie radially outside the peripheral connection point CP1 , The additional perimeter connection point CP3 is radially outside the peripheral connection point CP1 and the additional perimeter connection point CP2 , The additional perimeter connection point CP2 and the additional perimeter connection point CP3 are in the circumferential direction D1 from the peripheral connection point CP1 and the second circumferential connection point CP4 added. The additional perimeter connection point CP2 is in the circumferential direction D1 from the additional perimeter connection point CP3 added. The arrangement of the peripheral connection point CP1 , the additional perimeter connection point CP2 , the additional perimeter connection point CP3 and the second circumferential connection point CP4 however, is not limited to this embodiment.

As in 7 to see, contains the sprocket SP5 several through holes SP5D , A total number of through holes SP5D is 6. The total number of through holes SP5D however, is not limited to this embodiment. As in 2 to see, the additional fastener extends 40 through the through hole SP5D and the mounting hole 20C therethrough.

As in 8th to see, contains the sprocket SP6 several through holes SP6D , A total number of through holes SP6D is 6. The total number of through holes SP6D however, is not limited to this embodiment. As in 2 to see, the additional fastener extends 42 through the through hole SP6D and the mounting hole 20D therethrough.

As in 9 to see, contains the sprocket SP7 several through holes SP7D , A total number of through holes SP7D is 6 , The total number of through holes SP7D however, is not limited to this embodiment. As in 10 to see, points the sprocket SP8 several through holes SP8D on. The through holes SP8D are provided at positions corresponding to the through holes SP7D correspond. A total number of through holes SP8D is 6. The total number of through holes SP8D however, is not limited to this embodiment.

As in 2 to see are the sprockets SP7 and SP8 with the additional fastener 42 at the sprocket attachment portion 14E connected. The rear bicycle sprocket assembly 10 includes several spacers SC3 in the axial direction D2 between the sprockets SP7 and SP8 are provided. The spacer SC3 includes a spacer hole SC3A , The additional fastening element 42 extends through the through hole SP7D , the through hole SP8D , the mounting hole 20E and the spacer hole SC3A therethrough. The spacer SC3 can be integral with the additional fastener 44 be formed as a single, one-piece element.

As in 11 to see includes the sprocket SP9 an internal spline or an internal spline SP9S , The internal spline SP9S includes several internal splines or internal splines SP9T configured to engage with the plurality of outer spline teeth (not shown) of the rear bicycle hub assembly H ( 2 ) to be engaged. As in 2 to see the sprocket SP9 in a state where the rear bicycle sprocket assembly 10 on the rear bicycle hub assembly H is mounted, in the axial direction D2 between the middle section 21 of the sprocket carrier 12 and the locking element H1 the rear bicycle hub assembly H held.

As in 12 to see includes the sprocket SP10 an internal spline SP10S , The internal spline SP10S includes several internal splines SP10T configured to engage with the plurality of outer spline teeth (not shown) of the rear bicycle hub assembly H ( 2 ) to be engaged. As in 2 to see the sprocket SP10 in a state where the rear bicycle sprocket assembly 10 on the rear bicycle hub assembly H is mounted, in the axial direction D2 between the middle section 21 of the sprocket carrier 12 and the locking element H1 the rear bicycle hub assembly H held.

As in 20 to see includes the sprocket SP11 an internal spline SP11S , The internal spline SP11S includes several internal splines SP11T adapted to engage with the plurality of outer splines (not shown) of the rear bicycle hub assembly H ( 2 ) to be engaged. As in 2 to see the sprocket SP11 in a state where the rear bicycle sprocket assembly 10 on the rear bicycle hub assembly H is mounted, in the axial direction D2 between the middle section 21 of the sprocket carrier 12 and the locking element H1 the rear bicycle hub assembly H held.

As in 21 to see includes the sprocket SP12 a torque transmission profile SP12F , The torque transmission profile SP12F has several external splines SP12G on that for engagement with the sprocket SP11 are set to transmit a torque. As in 13 to see includes the sprocket SP11 a torque transmission profile SP11F , The torque transmission profile SP11F includes several additional internal splines SP11G which are set to work with the several external splines SP12G of the sprocket SP12 to be engaged to transmit the torque.

Second embodiment

A rear bicycle sprocket arrangement 210 According to a second embodiment will be described below with reference to the 22 to 24 described. The rear bicycle sprocket assembly 210 has the same structure and / or configuration as those of the rear bicycle sprocket assembly 10 on, with the exception of the sprocket carrier 12 , Thus, elements having substantially the same function as those in the first embodiment will be numbered the same and will not be described and / or illustrated again in detail here for the sake of brevity.

As in 22 to see includes the rear Fahrradkettenradanordnung 210 the multiple sprockets SP and a sprocket carrier 212 , The second sprocket SP2 is at the at least one additional circumferential connection point CP2 with at least one of the sprocket carrier 212 and one of the several sprockets SP1 to SP12 connected. In this embodiment, the second sprocket SP2 with the sprocket carrier 212 at the at least one additional circumferential connection point CP2 connected. The second sprocket SP2 is at the several additional perimeter junctions CP2 with the sprocket carrier 212 connected.

The rear bicycle sprocket assembly 210 further comprises the at least one fastening element 34 , The second sprocket SP2 is at the at least one additional circumferential connection point CP2 over the at least one fastener 34 with the sprocket carrier 212 In this embodiment, the rear bicycle sprocket assembly comprises 210 Furthermore, the plurality of fasteners 34 , The at least one additional circumferential connection point CP2 includes the several additional perimeter connection points CP2 , The second sprocket SP2 is at the several additional perimeter junctions CP2 using the multiple fasteners 34 with the sprocket carrier 212 connected.

As in 23 to see, the sprocket carrier points 212 essentially the same structure as the sprocket carrier 12 of the first embodiment. In this embodiment, the sprocket carrier comprises 212 several additional sprocket mounting sections 250 , A pair of additional sprocket attachment sections 250 extends from the sprocket mounting arm 22 radially outward. A total number of additional sprocket attachment sections 250 is in this embodiment 12 , The total number of additional sprocket attachment sections 250 however, is not limited to this embodiment. For example, the pair of additional sprocket attachment portions 250 be a Kettenradbefestigungsabschnitt or at least three Kettenradbefestigungsabschnitte. The arrangement of the peripheral connection point CP1 , the additional perimeter connection point CP2 , the additional perimeter connection point CP3 and the second circumferential connection point CP4 in the first embodiment can be applied to this embodiment.

As in 24 to see is the additional sprocket mounting section 250 between the sprockets SP2 and SP3 in the axial direction D2 intended. The additional through holes SPIE are from the first sprocket SP1 omitted. The spacers SC1 and SC2 are from the rear bicycle sprocket assembly 210 omitted. The additional sprocket attachment section 250 includes a fastening through-hole 250A and an additional attachment through hole 250B , The fastener 34 extends through the through holes SP2D and the fastening through hole 250A therethrough. The fastener 36 extends through the additional through hole SP2E , the through holes SP3D and the additional attachment through hole 250B therethrough.

modifications

The structures of the rear bicycle sprocket assemblies 10 and 210 can be combined with each other. As in a rear bicycle sprocket assembly 310 from 25 to see, for example, the second sprocket SP2 at the at least one additional circumferential connection point CP2 both on the sprocket carrier 212 as well as on one of the several sprockets SP1 to SP12 connected. The second sprocket SP2 is at the several additional perimeter junctions CP2 both with the sprocket carrier 212 as well as with the first sprocket SP1 with the several fasteners 34 connected.

The term "comprising" and its derivatives, as used herein, are to be understood as open-ended terms that include the existence of the named features, elements, Specify components, groups, integers, and / or steps, but not exclude the presence of other unnamed features, elements, components, groups, integers, and / or steps. The above also applies to words with similar meanings, such as the terms "with", "have", and their derivatives.

The terms "limb", "section", "section", "part", "element", "body" and "structure", when used in the singular, may have the dual meaning of a single part or multiple parts.

The ordinal numbers such as "first", "second" as given in the present application are merely identifiers, but have no other meaning, such as a particular order or the like. Moreover, for example, the term "first element" itself does not imply the existence of a "second element" and the term "second element" does not itself imply the existence of a "first element".

The term "pair of" as used herein may include the configuration in which the pair of elements have different shapes or structures from each other in addition to the configuration in which the pair of elements have the same shapes or structures.

The terms "a" (or "a"), "one or more" and "at least one" may be used interchangeably herein.

Finally, the terms of degree such as "substantially", "about" and "approximately" as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed. All numerical values described in this application can be construed to include "substantially," "about," and "about."

Obviously, many modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 15608924 [0001]
• US 15608915 [0001]
• US 15/673346 [0001]
• US 15/686177 [0001]
• US 15686179 [0001]
• US 15/712388 [0001]
• US 15/712407 [0001]
• US 15/851781 [0001]
• US 15/851785 [0001]
• US 15879353 [0001]

Claims (26)

Rear sprocket assembly of a bicycle comprising: a plurality of sprockets having a first sprocket and a second sprocket; and a sprocket carrier having a plurality of sprocket mounting portions, at least one of the plurality of sprocket mounting portions a radially extending surface extending radially with respect to a rotational center axis of the bicycle rear sprocket assembly, and an axially extending surface extending axially from the radially extending surface with respect to the rotational center axis, wherein the first sprocket has at least one circumferential connection point, the first sprocket being connected to the radially extending surface of at least one of the plurality of sprocket attachment sections at the at least one circumferential connection point, wherein the second sprocket has at least one additional circumferential connection point, the second sprocket being connected to at least one of the sprocket carrier and one of the plurality of sprockets at the at least one additional circumferential connection point, and a total number of the at least one perimeter connection point is different from a total number of the at least one additional perimeter connection point. Rear sprocket arrangement after Claim 1 wherein the total number of the at least one additional perimeter connection point is greater than the total number of the at least one perimeter connection point. Rear sprocket arrangement after Claim 1 or 2 wherein the first sprocket has a maximum tooth bottom diameter and the second sprocket has an additional maximum tooth bottom diameter greater than the maximum tooth bottom diameter of the first sprocket. Rear sprocket assembly according to one of Claims 1 to 3 wherein the plurality of sprocket mounting portions each include the radially extending surface radially extending with respect to the rotational center axis and the axially extending surface axially extending with respect to the rotational center axis from the radially extending surface. Rear sprocket assembly according to one of Claims 1 to 4 , further comprising at least one fastener, wherein the first sprocket is connected to the radially extending surface of the at least one of the plurality of sprocket mounting portions at the at least one circumferential connection point by means of the at least one fastener. Rear sprocket assembly according to one of Claims 1 to 5 , Further comprising a plurality of fasteners, wherein the at least one circumferential connection point comprises a plurality of peripheral connection points, and the first sprocket is / is connected to the radially extending surface of the at least one of the plurality of sprocket mounting portions at the plurality of circumferential connection points using the plurality of fasteners. Rear bicycle sprocket assembly after one of the Claims 1 to 6 wherein the second sprocket is connected to the one of the plurality of sprockets at the at least one additional circumferential connection point. Rear bicycle sprocket arrangement behind Claim 7 further comprising at least one fastener, wherein the second sprocket is connected to the at least one additional circumferential connection point by means of the at least one fastener with the one of the plurality of sprockets. Rear sprocket arrangement after Claim 7 , further comprising a plurality of fasteners, wherein the at least one additional circumferential connection point comprises a plurality of additional circumferential connection points, and the second sprocket is connected at the plurality of additional circumferential connection points by means of the plurality of fasteners with the one of the plurality of sprockets / is. Rear sprocket assembly according to one of Claims 1 to 6 wherein the second sprocket is connected to the sprocket carrier at the at least one additional circumferential connection point. Rear sprocket arrangement after Claim 10 further comprising at least one fastener, wherein the second sprocket is connected to the sprocket carrier at the at least one additional circumferential connection point by means of the at least one fastener. Rear sprocket arrangement after Claim 10 , further comprising a plurality of fasteners, wherein the at least one additional circumferential connection point comprises a plurality of additional circumferential connection points, and the second sprocket at the plurality of additional circumferential connection points are / are connected to the sprocket carrier by means of the plurality of fastening elements. Rear sprocket assembly according to one of Claims 1 to 12 wherein the sprocket carrier includes a middle portion and a plurality of sprocket mounting arms that extend radially outward from the central portion with respect to the rotational center axis, the plurality of sprocket mounting portions are respectively provided on the plurality of sprocket mounting arms, and the total number of the plurality of additional circumferential connection points is greater than a total number which is a plurality of sprocket mounting portions. Rear bicycle sprocket arrangement behind Claim 13 wherein the central portion of the sprocket carrier has a hub engagement profile. Rear bicycle sprocket assembly after one of the Claims 1 to 14 wherein the plurality of sprockets further comprises a third sprocket and a fourth sprocket. Rear bicycle sprocket assembly after one of the Claims 1 to 15 wherein the first sprocket is made of titanium. Rear bicycle sprocket assembly after one of the Claims 1 to 16 wherein the second sprocket is made of aluminum. Rear bicycle sprocket assembly after one of the Claims 1 to 17 wherein the plurality of sprocket mounting portions are offset from each other in a radial direction with respect to the rotational center axis. Rear sprocket assembly according to one of Claims 1 to 18 wherein the total number of the at least one additional perimeter connection point is twice the total number of the at least one perimeter connection point. Rear sprocket assembly of a bicycle comprising: a first sprocket having a first maximum tooth bottom diameter; a second sprocket having a second maximum tooth bottom diameter that is smaller than the first maximum tooth bottom diameter of the first sprocket; a third sprocket having a third maximum tooth bottom diameter greater than the first maximum tooth bottom diameter of the first sprocket; at least one fastening element; and a sprocket carrier having a central portion and a plurality of sprocket mounting arms extending radially outward from the central portion with respect to a rotational center axis of the rear bicycle sprocket assembly, the sprocket carrier including a first peripheral sprocket mounting portion provided on the plurality of sprocket mounting arms, and a second circumferential sprocket mounting portion provided on the plurality of sprocket mounting arms and disposed radially inward of the first circumferential sprocket mounting portion with respect to the rotational center axis; wherein the first peripheral sprocket mounting portion is configured to support the first sprocket, the second peripheral sprocket mounting portion configured to support the second sprocket, the third sprocket configured to be connected to the first sprocket by a fastener the first sprocket is disposed in an axial direction with respect to the rotational center axis between the second sprocket and the third sprocket. Rear bicycle sprocket arrangement behind Claim 20 wherein the first circumferential sprocket mounting portion has a first radially extending surface that extends radially with respect to the rotational center axis, and a first axially extending surface that extends axially with respect to the rotational center axis, and the second peripheral sprocket mounting portion has a second one radially an extending surface that extends radially with respect to the rotational center axis, and a second axially extending surface that extends axially with respect to the rotational center axis. Rear sprocket assembly according to Claim 20 or 21 further comprising: at least a first fastener; and at least one second fastener, wherein the first sprocket has at least one first circumferential connection point and is connected to the at least one first circumferential connection point with the first peripheral sprocket attachment portion by means of the at least one first fastener and the second sprocket has at least one second circumferential connection point and at least one second attachment point a second circumferential connection point using the at least one second Fastener is connected to the second Umfangskettenradbefestigungsabschnitt is / is. Rear bicycle sprocket assembly after one of the Claims 20 to 22 further comprising: at least one additional fastener; and a fourth sprocket configured to be attached to the third sprocket using the at least one additional attachment means, the third sprocket being disposed in the axial direction between the first sprocket and the fourth sprocket. Rear sprocket assembly according to one of Claims 20 to 23 wherein the central portion of the sprocket carrier has a hub engagement profile. Rear bicycle sprocket assembly after one of the Claims 20 to 24 wherein the first sprocket has at least one first peripheral connection point and is connected to the first peripheral sprocket attachment section at the at least one first peripheral connection point, the second sprocket has at least one second peripheral connection point and is connected to the second peripheral sprocket attachment section at the at least one second circumferential connection point; a total number of the at least one second peripheral connection point is equal to or greater than a total number of the at least one first peripheral connection point, the third sprocket has at least a third peripheral connection point, and at the at least one third peripheral connection point is connected to the first sprocket / a total number of the at least one third peripheral connection point is greater than the total number of the at least one first perimeter connection point. Rear bicycle sprocket arrangement behind Claim 25 wherein the total number of the at least one third perimeter connection point is twice the total number of the at least one first perimeter connection point.

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