Multiple-sprocket arrangement for a bicycle gearing

Patent metadata

Field	Value
Publication number	US-10093390-B2
Application number	US-201615358266-A
Country	US
Kind code	B2
Filing date	Nov 22, 2016
Priority date	Jul 19, 2013
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A multiple-sprocket arrangement for mounting on a rear wheel axle of a bicycle includes a receiving body designed for mounting on the rear wheel axle, and a sprocket assembly. The sprocket assembly includes a first sprocket, the inner diameter of which is greater than an outer diameter of the receiving body and which is connected to the receiving body. The sprocket assembly further includes at least one second sprocket, the inner diameter of which is smaller than an outer diameter of the receiving body and which is designed in an unsupported manner and connected to the receiving body in a torque-transmitting manner by means of the first sprocket. The first sprocket and the at least one second sprocket may be of a one-piece construction.

First claim

What is claimed:

1. A multiple-sprocket arrangement for mounting on a rear wheel axle of a bicycle, comprising:
a receiving body shaped and sized to mount on the rear wheel axle, and
a sprocket assembly including a first sprocket connected to the receiving body, the first sprocket having an inner diameter greater than an outer diameter of the receiving body, and at least one second sprocket having an inner diameter smaller than the outer diameter of the receiving body and which is indirectly supported on the receiving body by a connection with the first sprocket, the first sprocket and the at least one second sprocket being a one-piece construction,
wherein the sprocket assembly includes two second sprockets connected to one another by separate fasteners.

2. A multiple-sprocket arrangement according to claim 1 , wherein the first sprocket and the at least one second sprocket are connected to one another by a first flange section extending substantially parallel to the rear wheel axle.

3. A multiple-sprocket arrangement according to claim 1 , wherein spacers are provided between adjacent sprockets of the sprocket assembly.

4. A multiple-sprocket arrangement according to claim 1 , wherein the two second sprockets have substantially identical inner diameters.

5. A multiple-sprocket arrangement according to claim 1 , wherein the first sprocket is provided with a snap-in protrusion in the region of its inner circumference which engages with a locking groove provided in a region of an outer circumference of the receiving body.

6. A multiple-sprocket arrangement according to claim 1 , wherein the first sprocket is connected to the receiving body by a retaining element disposed on the receiving body.

7. A multiple-sprocket arrangement according to claim 1 , wherein the receiving body is connected to the first sprocket.

8. A multiple-sprocket arrangement according to claim 1 , wherein at least one further sprocket is connected to the sprocket assembly in a torque-transmitting manner with a first retaining bolt extending substantially parallel to the rear wheel axle.

9. A multiple-sprocket arrangement according to claim 1 , wherein the multiple-sprocket arrangement is configured to operate in combination with a rear wheel axle arrangement for a bicycle, the rear wheel axle arrangement comprising:
a rear wheel axle designed for mounting on a bicycle frame;
a hub sleeve rotatably mounted on the rear wheel axle; and
a torque transmission arrangement to direction-selectively transmit a torque from the multiple-sprocket arrangement to the hub sleeve.

10. A multiple-sprocket arrangement for mounting on a rear wheel axle of a bicycle, comprising:
a sprocket assembly including a first sprocket connected to a receiving body, the first sprocket having an inner diameter greater than an outer diameter of the receiving body, and at least one second sprocket having an inner diameter smaller than the outer diameter of the receiving body and which is indirectly supported on the receiving body by a connection with the first sprocket, the first sprocket and the at least one second sprocket being a one-piece construction; and
a further sprocket having a greater number of teeth than the first sprocket, the further sprocket and the first sprocket connected to one another by separate fasteners.

11. The multiple-sprocket arrangement of claim 10 , wherein the further sprocket is connected to the sprocket assembly by means of at least one retaining bolt.

12. The multiple-sprocket arrangement of claim 11 , wherein the at least one retaining bolt extends parallel to a central axis of the multiple sprocket arrangement.

Assignees

• Sram De Gmbh
• Sram De Gmbh

Inventors

• Braedt Henrik
• Reinbold Matthias

Classifications

• F16H55/30

  Chain-wheels · CPC title

• B62M9/10 Primary

  involving different-sized wheels, {e.g. rear sprocket chain wheels} selectively engaged by the chain, belt, or the like {(bicycle hubs rotatably arranged on axle B60B27/023)} · CPC title

• F16H9/24

  using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing · CPC title