| 摘要 |
PURPOSE:To stabilize the frictional coefficient of a sliding surface of a sliding material and to improve its wear resistance by mixing both short and long fibers in a resin material of the sliding material, and orienting the long fibers under the sliding surface in circumferential directions. CONSTITUTION:In a vibration wave motor, a piezoelectric element 2 is adhered to the rear surface side of a metal elastic element 1 formed in a circular shape with an adhesive, and many slits S are formed in the front surface side in circumferential directions. In a moving element 3, a sliding material 4 is secured to the contact surface side of the element 1, and brought into press contact with the element 1 by pressing means. In the material 4, short fibers 4b are added in a uniformly dispersed state to a resin material 4a to become a base material, and long fibers 4c are oriented in circumferential directions (in a X direction) to be uniformly dispersed. The material 4 is used to transmit a frictional force generated on the sliding surface efficiently to the element 3 with high rigidity in the circumferential direction. |
