Multiple-sprocket arrangement for a bicycle gearing

Patent metadata

Field	Value
Publication number	US-10946932-B2
Application number	US-201816119562-A
Country	US
Kind code	B2
Filing date	Aug 31, 2018
Priority date	Jul 19, 2013
Publication date	Mar 16, 2021
Grant date	Mar 16, 2021

Abstract

A multiple-sprocket arrangement for mounting on a rear wheel axle arrangement of a bicycle is provided. The multiple-sprocket arrangement includes a sprocket assembly having a plurality of sprockets of different sizes, and/or different numbers of teeth, disposed along an axis of rotation, for example of the rear wheel axle arrangement. The sprocket assembly includes a torque transmitting section configured to transmit torque to a hub sleeve, the torque transmitting section disposed along a first length of the rotation axis, and at least two sprockets having a smaller inner diameter than an outer diameter of the hub sleeve, the at least two sprockets formed as a separate piece, or pieces, from other sprockets of the plurality of sprockets and positioned over a second length along the rotation axis, the second length distinct from, and disposed outboard of, the first length.

First claim

We claim:

1. A multiple-sprocket arrangement for mounting on a rear wheel axle arrangement of a bicycle, comprising:
a sprocket assembly having a plurality of sprockets of different sizes disposed along an axis of rotation of the rear wheel axle arrangement, the sprocket assembly including:
a torque transmitting section configured to transmit torque to a hub sleeve, the torque transmitting section disposed along a first length of the rotation axis,
at least two sprockets having a smaller inner diameter than an outer diameter of the hub sleeve, the at least two sprockets formed as separate pieces from other sprockets of the plurality of sprockets and positioned over a second length along the rotation axis, the second length distinct from, and disposed outboard of, the first length, and
a receiving body disposed radially inward of the sprocket assembly and configured to secure the at least two sprockets to the hub sleeve, the receiving body including a threaded attachment configured to attach to the hub sleeve at a position along the rotation axis inboard of the second length.

2. The multiple-sprocket arrangement of claim 1 , wherein the at least two sprockets are torque-transmittingly connected to one another.

3. The multiple-sprocket arrangement of claim 1 , wherein the receiving body radially supports the at least two sprockets.

4. The multiple-sprocket arrangement of claim 1 , wherein the receiving body includes a nose configured to secure the at least two sprockets to the hub sleeve.

5. The multiple sprocket arrangement of claim 1 , wherein the torque transmitting section includes internal teeth.

6. The multiple sprocket arrangement of claim 1 , wherein one of the at least two sprockets has ten (“10”) or fewer teeth.

7. The multiple sprocket arrangement of claim 1 , wherein the at least two sprockets are connected to the other sprockets by a first flange section extending substantially parallel to the rear wheel axle.

8. The multiple sprocket arrangement of claim 7 , wherein the at least two sprockets are connected to one another by a second flange section extending parallel to the rear wheel axle.

9. The multiple sprocket arrangement of claim 8 , wherein the first flange section and the second flange section are configured to transmit torque from one or both of the at least two sprockets having a smaller inner diameter than an outer diameter of the hub sleeve to at least one of the other sprockets of the plurality of sprockets.

10. The multiple sprocket arrangement of claim 7 , wherein the first flange is a continuous ring.

11. The multiple sprocket arrangement of claim 1 , wherein spacers are provided between adjacent sprockets of the sprocket assembly.

12. The multiple sprocket arrangement of claim 1 , wherein the at least two sprockets are connected to the receiving body by a retaining element disposed on the receiving body.

13. The multiple sprocket arrangement of claim 1 , wherein the at least two sprockets are connected to the sprocket assembly in a torque-transmitting manner.

14. The multiple sprocket arrangement of claim 13 , wherein the at least two sprockets are connected to at least one other sprocket of the plurality of sprockets in a torque-transmitting manner.

15. A multiple-sprocket arrangement for mounting on a bicycle, comprising:
a sprocket assembly having a plurality of sprockets having different respective numbers of teeth, the plurality of sprockets disposed along an axis of rotation, the sprocket assembly including:
a torque transmitting section configured to transmit torque to a hub sleeve, the torque transmitting section disposed along a first length of the rotation axis,
at least two sprockets having a smaller inner diameter than an outer diameter of the hub sleeve, the at least two sprockets formed as a separate piece from other sprockets of the plurality of sprockets and positioned over a second length along the rotation axis, the second length distinct from, and disposed outboard of, the first length, and
a receiving body disposed radially inward of the sprocket assembly and configured to secure the at least two sprockets to the hub sleeve, the receiving body including a threaded attachment configured to attach to the hub sleeve at a position along the rotation axis inboard of the second length.

16. The multiple-sprocket arrangement of claim 15 , wherein the at least two sprockets are torque-transmittingly connected to one another.

17. The multiple-sprocket arrangement of claim 15 , wherein the receiving body radially supports the at least two sprockets.

18. The multiple sprocket arrangement of claim 15 , wherein the at least two sprockets are connected to the receiving body by a retaining element disposed on the receiving body.

19. The multiple sprocket arrangement of claim 15 , wherein one of the at least two sprockets has ten (“10”) or fewer teeth.

20. The multiple sprocket arrangement of claim 15 , wherein the at least two sprockets are connected to the other sprockets by a first flange section extending substantially parallel to the axis of rotation.

Assignees

• Sram De Gmbh

Inventors

• Braedt Henrik
• Reinbold Matthias

Classifications

• 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

• F16H55/30

  Chain-wheels · 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