| 摘要 |
PROBLEM TO BE SOLVED: To provide a torsional damper pulley capable of improving durability and easily restoring vibration suppression performance.SOLUTION: The torsional damper pulley includes a boss part fixed on a rotary shaft and a rim part 11 around which a belt for transmitting dynamic force to an auxiliary engine of an engine is wound, in which the rim part 11 is composed of an inside rim part 20 fixed on the boss part, an outside rim part 21 which is arranged concentrically to the inside rim part 20 separately diameter-direction outward and around which the belt is wound and a spring member 30 interposed between the inside rim part 20 and the outside rim part 21 to transmit rotational driving force while suppressing speed variation. The inside rim part 20 and the outside rim part 21 have a plurality of inner teeth 25 and outer teeth 26 alternately arranged with intervals in a peripheral direction and the spring member 30 is cylindrically formed by a spring steel material so that a diameter-direction section is shaped like a wave and arranged so as to be inserted between the inner teeth 25 of the inside rim part 20 and the outer teeth 26 of the outside rim part 21. |
