| 摘要 |
PURPOSE: A brake piston is provided to improve a braking force by improving the friction force with respect to the brake pad surface. CONSTITUTION: A brake piston comprises a body(10), a stepped surface(12), a second hollow part(13), an inclined surface(14), a third hollow part(15), and a fluid passage hole(16). The body is equipped with a first hollow part(11) which is opened to the upper side. The stepped part is horizontally extended from the first hollow part. The second hollow part is perpendicularly extended from the stepped surface and is formed inside the body. The inclined surface is extended from the second hollow part, is formed inside the body, and becomes narrow by being distant from the second hollow part. The third hollow part is perpendicularly extended from the inclined surface and is formed inside the body. The fluid passage hole is formed inside the second hollow part. |
