| 摘要 |
PURPOSE:To obtain a damper device with low stiffness by easily deforming a cover for a change of the internal air pressure caused by deformation of a damper. CONSTITUTION:A receptable 19 is shaped like a rotor formed by butyl rubber excellent in vibration damping ability. A cover 20 comprises an outer edge portion 21 and an inside portion 22 formed by a thin film 0.3mm thick. Therefore, the cover 20 forming a damper stuck to the receptacle is thin extending from the outer edge portion 21 to the inside portion, and the receptacle has a wavy concave-convex shape concentrically, so that the spring stiffness of the damper is lessened. Accordingly, natural vibration of a support system can be set low, so that a damper system having satisfactory damping performance can be accomplished with low-frequency range. |
