Braking pressure generating apparatus for a vehicle

A braking pressure generating apparatus for a vehicle comprising:

• a hydraulic pressure generator for generating and outputting a power pressure irrespective of operation of a brake pedal;
• an input member connectable to the brake pedal to receive a braking operation force through the brake pedal;
• a regulation valve disposed coaxially with the input member to regulate the power pressure outputted from the hydraulic pressure generator to a predetermined pressure corresponding to the braking operation force of the brake pedal and outputting the predetermined pressure;
• the regulation valve including a body and a valve portion movably disposed in the body;
• and
• a one-piece elastic member disposed between the input member and the regulation valve and receiving the braking operation force from the input member, the elastic member contacting both the valve portion and the body when the predetermined pressure outputted from the regulation valve is more than a certain pressure.