| 摘要 |
PROBLEM TO BE SOLVED: To provide a piston pump for a brake device having a novel configuration of less inconvenient elements, for example.SOLUTION: A piston pump for a brake device comprises, for example: a housing including a first concave part and a second concave part, having a partition wall part for dividing the first concave part and the second concave part and having a through-pass hole at the partition wall part for connecting the first concave part with the second concave part; a cam positioned at one side in a longitudinal direction from the partition wall part so as to push the first end part of a penetration member passing through the through-hole toward the other side in the longitudinal direction; and a piston stored reciprocatively in the longitudinal direction in a pump chamber provided at the other side of the longitudinal direction rather than the partition wall part so as to reduce the pump chamber as the penetration member pushed by the cam toward the other side in the longitudinal direction is moved.SELECTED DRAWING: Figure 2 |
