BRAKING DEVICE FOR VEHICLE

PROBLEM TO BE SOLVED: To suppress the occurrence of noises when an inlet valve is opened, in a braking device for a vehicle comprising a reacting piston disposed between a boosting hydraulic chamber and a control piston, an inlet valve disposed between the boosting hydraulic chamber and a hydraulic source so as to open in response to the advancing operation of the control piston, and an outlet valve disposed between the boosting hydraulic chamber and the reservoir so as to close in response to the advancing operation of the control piston. SOLUTION: The reacting piston 62 is slidably fitted in a casing 28, the piston being capable of freely moving back and forth between a valve constituting member 71 and the control piston 48, in a state where both the valve constituting member 71, accommodated moveably back and forth in the boosting hydraulic chamber 59, and the control piston 48 are at a furthermost retreated position. The inlet valve 60 is so constituted as to open by the advance of the valve constituting member 71 from the furthermost retreated position, while the outlet valve 61 is so constituted as to close by the contact of the front end of the reacting piston 62 with the valve constituting member 71. COPYRIGHT: (C)2003,JPO