Patent ID: 9169883
Filing Date: 2015-10-27
Classification: B61H,F16D

Abstract:
1. A caliper brake device for a vehicle, which applies a brake to rotation of a rotary body by sandwiching a first frictional surface and a second frictional surface formed on either side of the rotary body, comprising: a brake caliper having a first caliper arm that faces the first frictional surface and a second caliper arm that faces the second frictional surface; a movable brake pad that is supported by the first caliper arm and applies a braking force to the first frictional surface by displacing toward the first frictional surface; a pressure chamber formed in the brake caliper; a diaphragm that expands in accordance with a pressure of the pressure chamber; a plurality of pistons that drive the movable brake pad in a rotary axis direction of the rotary body in accordance with the expansion of the diaphragm; a guide member that guides a displacement of the plurality of pistons in a right-angle direction relative to the first frictional surface; a support mechanism that supports the brake caliper to be capable of displacing in the rotary axis direction of the rotary body; and a fixed brake pad that is fixed to the second caliper arm and applies a braking force to the second frictional surface in cooperation with the movable brake pad when pressure is supplied to the pressure chamber.