Patent ID: 7922263

Claim:
A braking apparatus for a vehicle, comprising: an operating member with which a driver performs a brake operation; a driving piston that is supported movably in an axial direction in a cylinder and that can be moved forward by the operating member, the driving piston including an input piston and a pressurizing piston; a first pressure chamber and a second pressure chamber that are sectioned in a forward position and a backward position relative to the pressurizing piston as a result that the driving piston is movably supported in the cylinder; a control-hydraulic-pressure setting unit that sets a control hydraulic-pressure corresponding to an operation made on the driving piston by the operating member; a hydraulic-pressure supply unit that generates a braking hydraulic-pressure from the first pressure chamber by causing the control hydraulic-pressure set by the control-hydraulic-pressure setting unit to act on the second pressure chamber; a counterforce chamber that is arranged in the cylinder and whose volume decreases as the driving piston moves forward; and a counterforce giving unit that is arranged in the driving piston, and that can give an operation counterforce to the operating member through the driving piston by deforming corresponding to decrease of volume of the counterforce chamber, wherein the counterforce giving unit includes a compression chamber, a decompression chamber, and a counterforce piston provided between the compression chamber and the decompression chamber, the compression chamber communicates with the counterforce chamber, and the decompression chamber includes a biasing member that presses against the counterforce piston to compress the compression chamber.