| 摘要 |
PURPOSE: A piston for a master cylinder and a master cylinder equipped with the piston is provided to minimize the meaningless receding action of a piston and brake release delay through rapid connecting a connecting hole of the piston for a master cylinder and a flow passage in the state of releasing braking. CONSTITUTION: A piston for a master cylinder and a master cylinder equipped with the piston comprises a cylinder body, an oil tank, a first piston, a second piston, a sealing member(51), a plurality of connection flow passages, and an expanded connection flow passage(90). The cylinder body comprises a bore(21). The oil tank coupled with the cylinder body is coupled with the upper end of the master cylinder. The first piston and the second piston are respectively installed inside of the bore of the cylinder body to be retreated. The sealing member seals the inner portion and the outer portion of the cylinder body. The plurality of connection flow passages connects the inner side and outer side of the piston. The expanded connection flow passage reduces oil passing time. |
