Patent ID: 9522684
Filing Date: 2016-12-20
CPC Classification: B61H,F16D

Claim Text:
1. A caliper brake device for a railway vehicle comprising: a caliper body formed with two branches so that a front part is positioned on an outer side of two outer side surfaces of a periphery of a brake disc when a base part is installed on a bogie; a pneumatic brake cylinder device installed at a base part side of the caliper body; a first brake lever having base part end rotatably attached respectively to a tip of a rod of the pneumatic brake cylinder device and to a cylinder end portion at a side opposite to where the rod protrudes, and having a center part rotatably attached to the caliper body, so as to form a pair of respective front part which move toward and away from each other, due to a protruding and retracting motion of the rod; a second brake lever having front part end rotatably attached respectively to the tips of the branches of the caliper body, and having the base part ends respectively making contact with the tips of the first brake lever, so as to form a pair which moves toward and away from each other, following a toward-and-away motion of the first brake lever; a pressing-force transmission member provided at the front part of a center part of the second brake lever, and which is designed to protrude or retract, following a toward-and-away motion of the second brake lever; a brake head disposed at the tip of the pressing-force transmission member, and a brake lining disposed on an inner side corresponding to the brake head; and a torque-receiving pin immobilizes a tip at each respective brake head, and causes a shaft part to be supported at the end portions of each of the branches of the caliper body via spherical bearings, wherein a braking torque is caused to be received by the caliper body via the brake head, the torque-receiving pin, and the spherical bearings, when the rod of the pneumatic cylinder device is caused to protrude, and the brake lining presses against the brake disc via the first and second brake levers, the pressing-force transmission member, and the brake head.