Patent ID: 9163681
Filing Date: 2015-10-20
Classification: F16D

Abstract:
1. A brake device, comprising: a brake pad having at least one holder, each of the holder configured to be in contact with a corresponding rolling body and hold the rolling body rotatably; a disk rotor provided in contact with the rolling body and configured to rotate the rolling body in the holder according to a relative displacement with the brake pad; and a pressing mechanism configured to press the brake pad and the disk rotor against each other, wherein the rolling body is spherical, the holder has a holding groove configured to hold the rolling body, the holding groove has a shape of a cone or truncated cone, and while the brake pad and the disk rotor are pressed against each other, the relative displacement of the brake pad and disk rotor is braked by frictional force generated between the rolling body and the holder when the disk rotor rotates the rolling body according to the relative displacement.