Patent ID: 8939440
Filing Date: 2015-01-27
Classification: F16F

Abstract:
1. A vibration absorption device comprising: a cylindrical bracket having a constant inner diameter, coupled with one of a vibration generating section or a vibration receiving section and having an inner surface formed in a linear shape in a cylinder axial direction; an internal cylinder that is disposed at an inner peripheral side of the external cylinder and is coupled with the other one of the vibration generating section or the vibration receiving section; and an elastic body that is interposed between the inner peripheral surface of the external cylinder and an outer peripheral surface of the internal cylinder, and that joins the external cylinder and the internal cylinder to each other, wherein the large diameter section is formed at the outer surface, which is press-fitted, of the external cylinder, wherein a length of the large diameter section in the cylinder axial direction is greater than a length of the small diameter section in the cylinder axial direction, wherein at the external cylinder, a flange section is provided at an outer side in a radial direction of a press-fitting rear end with respect to the bracket, wherein the large diameter section is formed from a portion of the external cylinder, which is nearer to the flange than the small diameter section, to the flange, wherein the standing surface is tapered such that a diameter of the standing surface increases from the small diameter section towards the large diameter section, wherein the large diameter section extends all the way between the flange and the intermediate section and the thickness of the large diameter section remains constant between the flange and the intermediate section, and wherein an outer surface of the small diameter section extends in a direction parallel or substantially parallel with an outer surface of the large diameter section.