| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-filling type vibration-proof device capable of attaining compatibility of damping characteristics and durability even when it is arranged in an inclined state relative to a horizontal plane. SOLUTION: An outer peripheral surface of a vibration-proof base body 3 is provided with first and second circular parts 31, 33 having the circularly formed cross section shape including a virtual flat surface vertical to an axis O; and an intermediate part 32 positioned between the first and second circular parts 31, 33. Since the intermediate part 32 is arranged such that the cross section shape is formed to an elliptical shape and a short axis radial direction is directed in an excitation direction (inclination direction), a neck diameter of a portion for giving influence to durability is made to a small diameter and enhancement of durability can be attained by the degree. Simultaneously, since a neck diameter of a portion with less influence to durability is made to a large diameter and a piston area can be ensured, enhancement of the damping characteristic can be attained. As a result, compatibility of the damping characteristic and durability can be attained. COPYRIGHT: (C)2009,JPO&INPIT |
