Hydraulic Brake Mechanism

摘要

A hydraulic brake mechanism is described including a housing. A master cylinder assembly is disposed within the housing, and the master cylinder assembly includes a fluid chamber. The fluid chamber includes a first chamber portion having a first diameter and a second chamber portion having a second diameter, with the first diameter greater than the second diameter. The fluid chamber includes a transition region between the first and second chamber portions. The mechanism includes a piston assembly having a piston disposed within the fluid chamber. A first seal is configured to sealingly engage between the first chamber portion and the piston, and a second seal is configured to sealingly engage between the second chamber portion and the piston. The mechanism includes an outlet port extending from the fluid chamber from or adjacent the transition region.

主权项

1. A hydraulic brake mechanism mountable to a handlebar, the brake mechanism comprising:
a housing including a base portion and an extension portion, the base portion including a clamp for clamping the housing to the handlebar, the base portion extending generally horizontally and the extension portion extending forwardly and angled upwardly from the base portion while the hydraulic brake mechanism is mounted to the handlebar; a fluid chamber disposed within the housing; a piston slidably disposed within the fluid chamber; a reservoir in fluid communication with the fluid chamber, the reservoir disposed laterally adjacent the fluid chamber while the hydraulic brake mechanism is mounted to the handlebar; and an actuator operatively connected to the housing and configured to slidably displace the piston in the fluid chamber.