| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a disc brake capable of surely preventing relative rotation in the cylinder circumferential direction, of a push rod and a cylinder with age. <P>SOLUTION: A detent portion for controlling the relative rotation in the cylinder circumferential direction, of the push rod 45 and the cylinder 18 is formed at a radial outer side of the push rod 45. The detent portion is composed of a projecting portion 110 having a curved surface formed on the push rod 45, and a recessed portion 112 having a curved surface formed on the cylinder 18. The projecting portion 110 and the recessed portion 112 are kept into contact with each other at their curved surfaces, and the projecting portion 110 is not kept into contact with angular portions of the recessed portion 112 and the cylinder 18. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
