| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulley improving durability of elastic bodies while being adaptable to various input modes. SOLUTION: The pulley comprises: a hub 3 fixed to a rotating shaft; a cylindrical pulley body 5 rotatably provided on the outer periphery of the hub 3; a hub side rotation transmitting protruded portion 7 protruded from the hub 3 near the pulley body 5; a body side rotation transmitting protruded portion 9 protruded from the pulley body 5 near the hub 3; and the elastic bodies 13 stored in a plurality of elastic body storage spaces 11 formed between the hub side rotation transmitting protruded portion 7 and the body side rotation transmitting protruded portion 9. The elastic bodies 13, 13 abut on the hub side rotation transmitting protruded portion 7 and on the body side rotation transmitting protruded portion 9, respectively. The elastic bodies 13 each have a compression stress reducing portion 17 formed on an outer peripheral face 15. A space portion 21 is provided between the outer peripheral face 15 of the elastic body 13 and an inner peripheral face 19 of the pulley body 5. The compression stress reducing portion 17 is provided on the drum-shaped outer peripheral face 15 of the elastic body 13. COPYRIGHT: (C)2007,JPO&INPIT
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