| 摘要 |
PROBLEM TO BE SOLVED: To provide brake equipment which can obtain a high responsive pressure rising property without depending on a discharge capacity of a pump.SOLUTION: Bake equipment includes: an operation rod having a first diameter which operates in linkage with a brake operation member; a piston with a step which includes, on one side, a middle diameter part which has a diameter larger than the first diameter, a large diameter part which has a diameter larger than the middle diameter part and an insertion hole into which the operation rod is so inserted from an axial direction as to be relatively movable; a first pressure chamber which acts between the first diameter and the middle diameter part; and a second pressure chamber which acts between the middle diameter part and the large diameter part. According to the brake equipment, a supply amount of a brake fluid into the first pressure chamber and the second pressure chamber is controlled, and when a high responsive pressure rising is required, a supply amount of a brake fluid into the second pressure chamber is increased. |
