To manufacture and assemble easily a device provided with a liquid pressure assistance means in which a change against a liquid pressure brake device provided with a master cylinder and a negative pressure booster is inhibited to the minimum without requiring a complex piping.
This hydraulic brake device for vehicle is provided with a negative pressure booster VB, a liquid pressure booster HB, and a valve mechanism VM for controlling an assistance by the liquid pressure booster HB. The negative pressure booster VB and a master cylinder MC are connected through an intermediate member MD and at least the liquid pressure booster HB and the valve mechanism VM is integrally constituted on the intermediate member. A motor M, a liquid pressure pump HP, a one directional valve CH, a relief valve RL and a solenoid valve device PV are integrally constituted on the intermediate member MD. Thereby, they are auxiliarily provided as a unit body.
YAMAMOTO HIDEKI
KUROKAWA TAKU
