Patent ID: 7857112

Claim:
A hydraulic brake comprising: a body defining a cylinder, said cylinder having opposite inner and outer ends; a piston disposed within said cylinder between said inner and outer ends; a brake lever disposed pivotally on said body such that, when said brake lever is in an idle condition, said piston is disposed at a starting position in said cylinder; and a piston adjusting unit including a first pivot disposed rotatably on said brake lever, and a push rod unit connected between said piston and said brake lever, said first pivot having a through hole formed therethrough, and an outer peripheral surface, said push rod unit including a sleeve member and a first adjustment rod, said sleeve member having a first end confined in said cylinder, a second end opposite to said first end and connected pivotally to said outer peripheral surface of said first pivot, and an adjustment hole extending from said first end to said second end and in spatial communication with said through hole in said first pivot, said first adjustment rod engaging threadably said adjustment hole in said sleeve member, and having an inner end in contact with said piston, and an outer end disposed outwardly of said through hole, said first adjustment rod being threadable within said sleeve member to vary the starting position.