| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the possibility of seizure of a bearing due to heating inside. SOLUTION: A frictional plate 20 and a fixed plate 15 are joined to one end wall and to the middle of a housing A, respectively, and a brake disc 22 is spline-joined to a shaft 12 passing through the housing A. A thrusting plate 14 to thrust the brake disc 22 to the frictional plate 20 and a movable plate 16 are arranged on one side and on the other side of the fixed plate 15, respectively. The thrusting plate 14 and the movable plate 16 are joined to one ends and to the other ends of guide pins 18, 19 supported on the fixed plate 15 in an axially slidable manner, respectively, and a return spring 4 is mounted between the fixed plate 15 and the thrusting plate 14. To a cylinder 15a formed on the fixed plate 15 and on one side of the movable plate 16, a piston 16a formed on the fixed plate 15 and on the other side of the movable plate 16 are fitted to construct a brake cancelling actuator B.</p> |
