Patent ID: 6736246
Filing Date: 2004-05-18
Classification: F16F,Y10T

Abstract:
A dynamic damper comprising an outer pipe, having a plurality of convex portions protruded in the inside diameter at a plurality of positions along the circumference of the outer pipe, a weight disposed inside the outer pipe and an elastic body interposed between the outer pipe and the weight, the elastic body being held between the convex portions and the outer circumference of the weight,a stopper portion disposed on the weight, the stopper portion being engagable with the convex portion of the outer pipe in the axial direction of the outer pipe by relative moving of the outer pipe and the weight, and an insertion guide face provided at an end portion in the axial direction of the convex portion of the outer pipe, wherein the convex portion of the outer pipe is arranged and constructed to facilitate the insertion guide face to slide against the stopper portion of the weight to enlarge the diameter of the convex portion elastically to a diameter larger than the diameter of the stopper portion.