Patent ID: 6499730
Filing Date: 2002-12-31
Classification: F16F

Abstract:
A dynamic damper for mounting on a rod-shaped oscillating member, comprising:generally cylindrical mass member adapted to be disposed radially outwardly of the oscillating member and comprising a forged cylindrical metallic mass subjected to a scale-removal treatment to provide the surface of the cylindrical mass with a ten-point mean surface roughness Rz in a range of 30 &mgr;m to 200 &mgr;m; an elastic support member elastically supporting said cylindrical metallic mass for connection thereof with the oscillating member; and an elastic covering layer covering substantially an entire surface area of said cylindrical metallic mass and integrally formed with said elastic support member, wherein said elastic covering layer is fixed in close contact with substantially the entire surface area of said cylindrical metallic mass without using an adhesive.