Patent ID: 9592806
Date: 2017-03-14
CPC Classifications: B60T

Claim:
1. A stroke simulator comprising: a simulator piston which is displaced in a cylinder filled with a brake fluid, in response to a hydraulic pressure which is generated by a hydraulic pressure generating unit due to an operation of a brake operating element by a driver; and a reaction force generating unit which is housed in the cylinder and applies a reaction force corresponding to a displacement of the simulator piston to the simulator piston, wherein the stroke simulator generates the reaction force applied to the simulator piston as a brake reaction force for the brake operating element, wherein the reaction force generating unit comprises: wherein the second spring seat member includes a bottomed cylinder portion which is open to the side of the simulator piston, and a flow path which communicates the inside with the outside of the bottomed cylinder portion, and wherein the cylindrical portion of the first spring seat member includes a through-hole formed for discharging brake fluid and unnecessary air which accumulates in the inside of the cylindrical portion.