| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration damper of light weight and low cost having a stopper mechanism to excessive displacement in upward and horizontal directions of a vibration damper base body. SOLUTION: A first installation member 10 provided with an inner cylinder 16 and a second installation member 12 provided with an opening part 30 surrounding the inner cylinder are coupled by the vibration damper base body 14. An upper surface of the vibration damper base body 14 is bonded to a flange part 22 at an upper end of the inner cylinder 16, while an inner circumferential surface of it is kept unbonded to a circumferential surface of the inner cylinder 16. A plurality of protruded parts 42 are provided to be axially extended on the inner circumferential surface. A stopper rubber 46 is provided on an inner circumferential surface of a cylindrical part 36 extended from the opening part 30, while a gap 48 is secured. A first stopper part 50 to limit horizontal displacement of the inner cylinder 16 is provided. Between an extended part 54 provided on the inner cylinder 16 and a lower end of the cylinder part 36, a stopper rubber 56 is provided, while a gap 58 is secured. A second stopper part 60 to limit displacement of the inner cylinder 16 upward is provided. COPYRIGHT: (C)2004,JPO&NCIPI
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