Patent ID: 11945544
Assignee: SRAM, LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A control device mountable to a handlebar of a bicycle, the control device comprising:
a housing having a base portion and an extension portion, the base portion of the housing having a front end, a rear end opposite the front end, a downward facing side, an upward facing side, an inward facing side, an outward facing side, and a handlebar clamp disposed at the rear end;
a lever coupled to and pivotable relative to the housing;
a master cylinder portion supported by the housing, the master cylinder portion having a fluid cylinder, the fluid cylinder having a first end and a second end opposite the first end with a cylindrical wall therebetween, the fluid cylinder being hollow, such that an opening extends through the master cylinder portion, from the first end to the second end; and
a piston assembly supported by the housing, the piston assembly being movable relative to the master cylinder portion, at least part of the piston assembly being disposed within the master cylinder portion,
a first adjustment mechanism configured to adjust an angular position of the lever relative to the housing, such that when the control device is mounted to the handlebar of the bicycle, a distance between an end of the lever and the handlebar is also adjusted; and
a second adjustment mechanism configured to adjust an initial position of the piston assembly relative to an opening through the cylindrical wall of the fluid cylinder, wherein the piston assembly includes a piston and a seal disposed around the piston,
wherein a fluid is disposable within a volume between the piston and the fluid cylinder,
wherein the piston assembly is configured to translate in a first direction relative to the master cylinder portion from when the lever pivots in a first rotational direction relative to the housing, such that the seal moves towards the opening through the cylindrical wall of the fluid cylinder and pushes a portion of the fluid out of the master cylinder portion for activation of a brake caliper of the bicycle.