| 摘要 |
<p>PURPOSE: To prevent generating uneven wearing despite an amount of wearing a friction material. CONSTITUTION: A shape of torque receiving surfaces 26A, 58A is constituted of circular arc surfaces of radiuses r1 , r2 with rotor diametric direction center lines P1 , P2 , passing through the center of a contact surface with a disk rotor 12 of friction materials 24, 30, serving as the center, also to conform to the shape a virtual surface formed by moving loci Q1 , Q2 of the center lines P1 , P2 according to wearing. Further, action direction lines N1 , N2 of pressing force are made to agree with the center of the contact surface. In this way, despite a wearing amount, since reaction forces Rin , Rout always act toward the center lines P1 , P2 , angular moment around the concerned center line is prevented from being generated. Accordingly, unevenly wearing the friction materials 24, 30 can be prevented.</p> |
