US 11,840,314 B2
Multi-sprocket assembly and rear wheel assembly for a bicycle with a derailleur system
Sebastian Heyna, Dittelbrunn-Ot Hambach (DE)
Assigned to SRAM DEUTSCHLAND GmbH, Schweinfurt (DE)
Filed by SRAM DEUTSCHLAND GmbH, Schweinfurt (DE)
Filed on Aug. 26, 2021, as Appl. No. 17/412,765.
Claims priority of application No. 10 2020 005 366.1 (DE), filed on Sep. 1, 2020; and application No. 10 2021 003 431.7 (DE), filed on Jul. 2, 2021.
Prior Publication US 2022/0063761 A1, Mar. 3, 2022
Int. Cl. B62M 9/06 (2006.01); B62M 9/10 (2006.01); B62M 9/04 (2006.01)
CPC B62M 9/06 (2013.01) [B62M 9/04 (2013.01); B62M 9/10 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A multi-sprocket assembly for a rear wheel assembly for a bicycle with a derailleur system, comprising:
a multi-sprocket arrangement; and
a locking screw arrangement,
wherein the multi-sprocket arrangement is configured to be couplable with a driver of the rear wheel assembly in a torque-transmitting manner, and comprises at least eleven sprockets with differing numbers of teeth,
wherein the multi-sprocket assembly is configured such that, in a mounted state, at least two of the smallest sprockets are axially fixed to the driver via the locking screw arrangement,
wherein the locking screw arrangement has a shaft portion for receiving at least one sprocket of the at least two smallest sprockets,
wherein the shaft portion has an axially outer stop portion at one end region and at least one external thread at an opposite end region, the at least one external thread configured to be screwed into an associated internal thread to fix the locking screw arrangement,
wherein the at least one external thread of the shaft portion has an outer diameter which is larger than an outer diameter of a region of the shaft portion that receives the at least one sprocket of the at least two smallest sprockets,
wherein the axially outer stop portion is releasable from the shaft portion and is designed in the form of a securing element which is connectable to the shaft portion and engages only in a single groove of the shaft portion.