| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle brake device which achieves good mountability to a vehicle.SOLUTION: A vehicle brake device includes: a master cylinder 11; master pistons 13, 14 which are provided in the master cylinder 11 so as to slide in a fore and aft direction; spool valves 23, 24 which are provided in the master cylinder 11 at the rear side of the master pistons 13, 14; a brake pedal 71 to which an operation force of a driver is transmitted; an input piston 15 which is provided in the master cylinder 11 so as to slide in the fore and aft direction at the rear side of the spool valves 23, 24, receives the operation force transmitted from the brake pedal 71, and drives the spool valve 23 with the operation force; a simulator spring 26 which is provided in the master cylinder 11 at the front side of the input piston 15 and biases the input piston 15 to the rear side; and fail cylinders 12-1, 12-2 which are provided in the master cylinder so as to slide in the fore and aft direction and transmit the operation force to the master pistons 13, 14 when an accumulator pressure is dissipated. |
