| 摘要 |
A dynamic damper including: a cylindrical metallic mass; a cylindrical fixing member with an inner diameter smaller than that of the metallic mass member; a connecting member connecting the metallic mass member with respect to the fixing member; and a covering member integrally formed with the cylindrical fixing member and the connecting member, and covering the mass member. A plurality of engaging recesses are formed at axial end portions of the mass member to be open in an outer circumferential surface thereof, and a plurality of engaging projections integrally formed with the covering member are held in stable engagement with the engaging recesses, respectively.
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