Patent ID: 8376474

Claim:
A vehicle braking apparatus, disposed between a brake operation member and a fluid pressure booster configured to apply a fluid pressure to a boosted fluid pressure application chamber, the vehicle braking apparatus comprising: a control piston having a cylindrical shape, the control piston configured to operate so that a reaction force based on the fluid pressure of the boosted fluid pressure application chamber is balanced with a braking operation input from the brake operation member, the boosted fluid pressure application chamber facing a rear face of a master piston disposed in a master cylinder; an elastic member having a cylindrical shape, the elastic member including: a first face adapted to contact with a simulator piston connected to the brake operation member and slidably accommodated in the control piston in an axial direction; and a second face; a sliding member adapted to contact with the second face, the sliding member being accommodated in the control piston; a spring disposed between the sliding member and the control piston; and an odd-shaped portion disposed on at least one of the first and second faces of the elastic member, the odd-shaped portion configured to increase a contacting area of the elastic member and at least one of the simulator piston and the sliding member as compression is applied in the axial direction.