IP Library Granted Patent US 12,358,593
Granted Patent B2
US 12,358,593 · App. 17/555,593 · Granted Jul 15, 2025

Bash guard device and system for bicycle components

Inventors: Melissa Hastings (Colorado Springs, CO); Stephanie Raulston (San Luis Obispo, CA); Matthew Bush (San Louis Obispo, CA); Alexander Linke (Schonungen, DE)
Assignee: SRAM, LLC
B62M9/138B62M9/105B62J13/00B62M2009/007
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Quick Facts
Patent No.
US 12,358,593
App. No.
17/555,593
Granted
Jul 15, 2025
Kind
B2
Abstract

A chainring protection system includes a chainring having a torque input section and a torque output section. The torque output section is radially outer relative to the torque input section and has a plurality of teeth. The chainring protection system also includes a cover connected to the chainring, such that the cover at least partially covers a circumferential portion of the torque output section. The circumferential portion of the torque output section includes less than all teeth of the plurality of teeth.

Claims (44)

1. A chainring protection system comprising:

a chainring having a torque input section and a torque output section, the torque output section being radially outer relative to the torque input section and having a plurality of teeth;

a backplate; and

a cover having a connection to the chainring spaced a radial distance outward from the torque input section, such that the cover at least partially covers a circumferential portion of the torque output section of the chainring, the circumferential portion of the torque output section including less than all teeth of the plurality of teeth,

wherein the cover is configured to interface with the backplate, such that the cover is connected to the chainring.

2. The chainring protection system of claim 1 , wherein the cover is a first cover, and the circumferential portion is a first circumferential portion, and

wherein the chainring protection system further comprises a second cover connected to the chainring, such that the second cover covers a second circumferential portion of the torque output section of the chainring.

3. The chainring protection system of claim 2 , wherein the first cover at least partially covers a first group of teeth of the plurality of teeth, and the second cover at least partially covers a second group of teeth of the plurality of teeth, the second group of teeth being different than the first group of teeth.

4. The chainring protection system of claim 2 , wherein the second cover is connected to the chainring, such that the second cover is opposite the first cover.

5. The chainring protection system of claim 1 , wherein the chainring includes at least one vacancy, and

wherein the backplate and the cover interface via a vacancy of the at least one vacancy.

6. The chainring of claim 5 , wherein the chainring further includes a flange disposed around and extending into the vacancy, and

wherein the backplate is supported within the vacancy by the flange.

7. The chainring protection system of claim 6 , further comprising a fastener configured to connect the backplate to the cover, such that the cover is connected to the chainring via the flange around the vacancy.

8. The chainring protection system of claim 1 , further comprising a fastener,

wherein the chainring includes at least one vacancy,

wherein the cover includes a threaded opening, and

wherein the fastener is configured to directly connect the cover to the chainring via a vacancy of the at least one vacancy and the threaded opening of the cover.

9. A cover for a chainring of a bicycle, the cover comprising:

a body including a circumferential portion and at least one radial portion, the at least one radial portion extending radially inner relative to the circumferential portion;

an opening extending at least partially through a radial portion of the at least one radial portion;

a raised surface being positionable within a vacancy of the chainring,

the raised surface completely surrounding the opening; and

a threaded insert positioned within the opening.

10. The cover of claim 9 , wherein the threaded insert is made of a metal material, and the body is made of a non-metal material.

11. The cover of claim 9 , wherein the opening is a tapped hole.

12. The cover of claim 11 , wherein the body is made of a metal material.

13. The cover of claim 9 , wherein the opening is a first opening, and the radial portion is a first radial portion,

wherein the at least one radial portion of the body includes two radial portions,

wherein the cover further comprises a second opening extending at least partially through a second radial portion of the two radial portions,

wherein the first radial portion and the second radial portion of the body extend radially inner relative to the circumferential portion at opposite sides of the circumferential portion, respectively.

14. The cover of claim 9 , wherein the body has an outboard side and an inboard side opposite the outboard side, the outboard side being outboard relative to a frame of the bicycle when the cover is attached to the chainring, and

wherein the opening extends from the inboard side partially into the radial portion of the body.

15. The cover of claim 14 , wherein the body also has a front side extending between the outboard side and the inboard side,

wherein the circumferential portion of the body has a radially outer side, and the radial portion of the body has a radially inner side, the radially inner side of the radial portion being radially inner relative to the radially outer side of the circumferential portion, and

wherein the cover further comprises a chamfer feature at the outboard side and the front side of the body, and the radially inner side of the radial portion.

16. The cover of claim 15 , wherein the chamfer feature is a first chamfer feature, and

wherein the cover further comprises a second chamfer feature at the inboard side and the front side of the body, and the radially outer side of the circumferential portion.

17. A chainring protection system comprising:

a chainring having a torque input section, a torque output section, and at least two openings through the chainring, the torque output section being radially outer relative to the torque input section and including a plurality of teeth;

at least two backplates;

at least two covers having a connection to the chainring spaced a radial distance outward from the torque input section, wherein a first cover of the at least two covers at least partially covers a first group of teeth of the plurality of teeth, and a second cover of the at least two covers at least partially covers a second group of teeth of the plurality of teeth, the second group of teeth being different than the first group of teeth; and

at least two fasteners configured to connect the first cover and the second cover to the chainring via a first opening of the at least two openings and a second opening of the at least two openings, respectively,

wherein the at least two covers are configured to interface with the at least two backplates, such that the at least two covers are connected to the chainring.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2024
From: BUSH, MATTHEW; RAULSTON, STEPHANIE; HASTINGS, MELISSA
To: SRAM, LLC
Reel/Frame 067168/0614 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2024
From: LINKE, ALEXANDER
To: SRAM DEUTSCHLAND GMBH
Reel/Frame 067168/0649 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2024
From: SRAM DEUTSCHLAND GMBH
To: SRAM, LLC
Reel/Frame 067168/0699 →
Continuity (2)
Provisional Application 63138013 · Jan 15, 2021
Related Publication 20220227442A1 · Jul 21, 2022
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