| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic damper which can reduce the manufacturing cost by reducing the number of manufacturing works, enhance the durability, and is externally press-fitted to a rotary shaft part between large diameter parts even when the pair of large diameter parts are arranged on a rotary shaft in the axial direction if the diameter of the large diameter parts is not larger than a predetermined value, and suppress vibrations of the rotary shaft. SOLUTION: The cylindrical dynamic damper which is fitted to a rotary shaft S to suppress vibrations of the rotary shaft S comprises a plate rubber-like elastic body 1 wound around the rotary shaft S, and a cylindrical mass member 2 which is externally press-fitted to the rubber-like elastic body 1 wound around the rotary shaft S. The length of the rubber-like elastic body 1 in the direction corresponding to the circumferential direction of the rotary shaft is set so that end faces 3 and 4 of the rubber-like elastic body 1 in the direction corresponding to the circumferential direction of the rotary shaft S are abutted on each other when the rubber-like elastic body 1 is wound around the rotary shaft S. COPYRIGHT: (C)2004,JPO&NCIPI
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