| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration control structure of a bolt joint portion which can damp vibration between an iron frame and an iron beam. SOLUTION: First insulation displacement plates are formed of a pair of external plates arranged oppositely to each other in a bolt axial force operating direction, and also a second insulation displacement plate is formed of an intermediate plate sandwiched by the pair of external plates. Then, the bolt joint portion is arranged between a bracket attached on the iron frame and the iron beam. COPYRIGHT: (C)2009,JPO&INPIT
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