Chain Stay Protection Element and Chain Stay System

Abstract

A chain stay protection element is for the arrangement of a chain stay of a bicycle frame. The chain stay protection element includes a cover element arranged on an outer side of the chain stay in the area of the chainring in the mounted state. For fastening the cover element, the latter is connected to a fastening element.

Claims

1. A chain stay protection element for arrangement on a chain stay of a bicycle, comprising: a cover element arranged on an outer side of the chain stay in the area of the chainring in the mounted state, and a fastening element connected to the cover element for fastening to the chain stay.

2. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the covered area includes the area of the chainring directly adjacent to the chainring.

3. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the covered area includes an area arranged behind the chainring, in particular the teeth of the chainring, in plan view.

4. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein at the cover element is configured to be arc-shaped, in particular circular arc-shaped, the cover element preferably being arranged substantially coaxially to the chainring.

5. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the cover element extends across the entire height of the outer side of the chain stay.

6. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the cover element at least partially encompasses a lower side of the chain stay.

7. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the fastening element is arranged on an upper side of the chain stay.

8. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the fastening element is adapted to be connected in different positions to the chain stay, in particular the upper side of the chain stay.

9. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the cover element has a lug encompassing the chainring in the mounted state.

10. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the cover element has a groove in which the teeth of the chainring are arranged in the mounted state.

11. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the cover element and/or the fastening element are connected to a protection element arranged on an upper side of the chain stay, said protection element extending in the direction of a fork end of the chain stay.

12. The chain stay protection element for arrangement on a chain stay according to claim 1, wherein the fastening element and/or the cover element is connected to a chain guide element.

13. The chain stay protection element for arrangement on a chain stay according to claim 12, wherein the chain guide element is adapted to be fastened in different positions.

14. A chain stay system, comprising a chain stay of a bicycle rear frame, and a chain stay protection element according to claim 1 connected to the chain stay.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the following, the disclosure is described in more detail by means of preferred embodiments with reference to the accompanying drawings.

[0018] In the drawings:

[0019] FIG. 1 is a schematic perspective view of a first embodiment of a chain stay protection element in the mounted state,

[0020] FIG. 2 is a side view of the chain stay protection element shown in FIG. 1 in the mounted state together with a chainring,

[0021] FIG. 3 is a perspective view of a second embodiment of a chain stay protection element, and

[0022] FIG. 4 is a perspective plan view of the chain stay protection element shown in FIG. 3.

DETAILED DESCRIPTION

[0023] In the Figures, two embodiments of a chain stay protection element are illustrated in conjunction with the chain stay and possibly also with the chainring so that the chain stay system is also illustrated.

[0024] According to a first preferred embodiment (FIGS. 1 and 2), the chain stay protection element has a cover element 10. The cover element 10 is arranged on an outer side 12 of chain stay 14 in the mounted state. As can be seen in particular from FIG. 2, cover element 10 is arranged in an area 16. The area 16 is an area of a chainring. In the illustrated exemplary embodiment, area 16 is the area adjoining a circumference of a chainring 20 in a direction opposite to a direction of travel 18. The cover element 10 could also be arranged slightly wider or slightly further forward in the direction of travel, so that it is at least partially arranged below the chainring, in particular the teeth of chainring 20, in plan view (FIG. 2).

[0025] A fastening element 22 is connected to cover element 10 or integrally formed therewith. The fastening element 22 arranged on an upper side of chain stay 14 can fasten the chain stay protection element to chain stay 14 by means of a screw or the like.

[0026] Furthermore, in the illustrated exemplary embodiment, a chain guide element 24 is connected to fastening element 22. The chain guide element may also be integrally formed with fastening element 22. The chain guide element 24 may also be part of fastening element 22 so that the fastening is achieved by means of a screw 26 (FIG. 1), for example. In the illustrated exemplary embodiment, screw 26 is arranged in an oblong hole so that chain guide element 24 can be adjusted in particular in vertical direction. This is particularly advantageous when replacing the chainring as it makes it easy to adapt to chainrings of different sizes.

[0027] Furthermore, in the illustrated exemplary embodiment, a protection element 30 is connected to cover element 10 or fastening element 22, respectively. The protection element 30 is arranged on an upper side of chain stay 14 and encompasses chain stay 14 in the illustrated exemplary embodiment on outer side 12 and on the opposite inner side. The protection element is thus U-shaped in cross-section. In the illustrated exemplary embodiment, protection element 30 extends across the entire length of chain stay 12 from the chainring-side end or from cover element 10, respectively, in the direction of a fork end 32 of the rear frame, which serves to accommodate the rear wheel axle.

[0028] As can be seen in particular in FIG. 2, the chain guide element may be configured such that it has a lug 34 encompassing chainring 20 in the mounted state or being arranged on the outer side of chainring 20 in plan view (FIG. 2), respectively.

[0029] The cover element 10 may further be configured such that it at least partially encompasses a lower side 34 of chain stay 14 in order to ensure a secure reliable connection with chain stay 14.

[0030] In a second preferred embodiment (FIGS. 3 and 4) similar and identical components are designated with the same reference signs.

[0031] The main difference between these two embodiments is that element 10 additionally has a lug 36. In the illustrated exemplary embodiment, a groove 38 is formed by lug 36 in which the teeth of the chainring 20 are arranged. The lug 36 is thus arranged in front of or outside of chainring 20, respectively, in the mounted state in plan view. In the illustrated exemplary embodiment, fastening is preferably again achieved by means of a fastening element 22, which in the illustrated embodiment comprises a screw 40.

[0032] The embodiment illustrated in FIGS. 3 and 4 can, of course, be supplemented to include an additional chain guide element 24 and/or a protection element 30.