Braking device

摘要

A first slave piston and a second slave piston are disposed in tandem in series within a cylinder body, and the pistons are arranged so that part of the shaft section of the second slave piston overlaps with the inner periphery of an opening section provided in the backward side, in the displacement direction, of the first slave piston. A long hole extending along the axial direction of the second slave piston is provided in the shaft section, and a connection pin which regulates the initial position of the second slave piston is inserted into the long hole.

主权项

1. A braking device comprising:
a master cylinder that generates a first brake hydraulic pressure by operation of a brake operation unit; and a slave cylinder of tandem type that actuates a rod by an electric motor which is driven in response to operation amount of the brake operation unit and displaces two pistons to generate a second brake hydraulic pressure, wherein: a piston on a proximal side of the rod, of the two pistons of the slave cylinder, is a second piston having a piston body, and a piston spaced away from the rod in a displacement direction is a first piston having a cylindrical bore formed therein, the second piston has a forward end formed integrally with the piston body and configured to fit slidably inside the cylindrical bore of the first piston; and the pistons are arranged so that an inner periphery of an opening section provided in a backward side in the displacement direction of the first piston overlaps with part of one side along an axial direction of the second piston.