Control assembly for a bicycle shock absorber

Patent metadata

Field	Value
Publication number	US-9593736-B2
Application number	US-201113047654-A
Country	US
Kind code	B2
Filing date	Mar 14, 2011
Priority date	Mar 14, 2011
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

A control assembly for an in-line bicycle shock absorber can include a control member rotatably mounted to a housing of the shock absorber, the control member having an interior bore, and with one end of the bore being closed and another end of the bore being open. The control assembly also includes a piston slidably mounted within the interior bore of the control member. The control member is rotated to adjust a first characteristic of the shock absorber and the piston is displaced within the interior bore to adjust a second characteristic of the shock absorber.

First claim

What is claimed is:

1. An in-line bicycle shock absorber control assembly, comprising:
a control member rotatably mounted to a housing of the shock absorber, the control member having an interior bore, with one end of the bore being closed and another end of the bore being open, the control member rotated to adjust a first characteristic of the shock absorber; and
a piston slidably mounted in an axial direction within the interior bore of the control member, the piston axially displaced in the axial direction within the interior bore to adjust a second characteristic of the shock absorber, wherein a state of the second characteristic corresponds to the axial position of the piston in the interior bore.

2. The in-line bicycle shock absorber control assembly according to claim 1 , wherein the control member is a generally cylindrical knob actuated by rotation relative to the housing, the piston is generally cylindrical and coaxial with the knob.

3. The in-line bicycle shock absorber control assembly according to claim 1 , wherein the first characteristic is a rebound damping characteristic.

4. The in-line bicycle shock absorber control assembly according to claim 3 , wherein the second characteristic is a compression lockout characteristic.

5. The in-line bicycle shock absorber control assembly according to claim 3 , wherein the control member is a knob actuated by rotation relative to the housing.

6. The in-line bicycle shock absorber control assembly according to claim 1 , wherein the interior bore includes a control chamber defined by the closed end of the bore and an end of the piston, the control chamber containing hydraulic fluid, the control member having a hydraulic control line configured in fluid communication with the control chamber.

7. The in-line bicycle shock absorber control assembly according to claim 6 , further comprising:
a fluid connector rotatably mounted to the control member to provide rotatable fluid connection of the hydraulic control line with the control chamber.

8. The in-line bicycle shock absorber control assembly according to claim 1 , wherein actuation of the piston remotely from the shock absorber housing adjusts the second characteristic of the shock absorber.

9. The in-line bicycle shock absorber control assembly according to claim 1 , further comprising:
a return spring mounted to bias the piston towards the closed end of the interior bore of the control member.

10. The in-line bicycle shock absorber control assembly according to claim 1 , wherein the piston has a range of displacement, and further comprising a helper spring mounted to bias the piston towards the closed end of the interior bore of the control member during a portion of the range of displacement of the piston.

11. The in-line bicycle shock absorber control assembly according to claim 6 , further comprising a rebound sleeve, the first characteristic is a rebound damping characteristic, the control member has a cam surface disposed proximate the open end of the interior bore, the cam surface slidably contacting the rebound sleeve.

12. The in-line bicycle shock absorber control assembly according to claim 11 , further comprising a lockout rod, the second characteristic is a compression lockout characteristic, the piston having a tapered end opposite the control chamber slidably contacting an end of the lockout rod.

13. The in-line bicycle shock absorber control assembly according to claim 6 , further comprising a lockout rod, the piston having a tapered end opposite the control chamber slidably contacting an end of the lockout rod.

14. The in-line bicycle shock absorber control assembly according to claim 1 , wherein rotation of the control member mechanically adjusts the first characteristic of the shock absorber.

15. The in-line bicycle shock absorber control assembly according to claim 14 , further comprising a hydraulic control member mounted remotely from the shock absorber housing in fluid communication to actuate the piston.

16. The in-line bicycle shock absorber control assembly according to claim 15 , wherein hydraulic actuation of the piston mechanically adjusts the second characteristic of the shock absorber.

17. The in-line bicycle shock absorber control assembly according to claim 6 , wherein the control member is a generally cylindrical knob actuated by rotation relative to the housing, the piston is generally cylindrical and coaxial with the knob.

18. The in-line bicycle shock absorber control assembly according to claim 6 , wherein the first characteristic is a rebound damping characteristic.

19. The in-line bicycle shock absorber control assembly according to claim 18 , wherein the second characteristic is a compression lockout characteristic.

20. The in-line bicycle shock absorber control assembly according to claim 18 , wherein the control member is a knob actuated by rotation relative to the housing.

Assignees

• Jordan Brian
• Olds Steven
• Shipman Christopher
• Wesling Kevin
• Sram Llc

Inventors

• Jordan Brian
• Olds Steven
• Shipman Christopher
• Wesling Kevin

Classifications

• F16F9/461 Primary

  characterised by actuation means · CPC title

• B62K2025/048

  with suspension manual adjustment details · CPC title