| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluid-sealed damping device having a new structure, which allows stable switching between a communicating state and an interrupted state of a second orifice passage tuned to a high frequency side while suppressing occurrence of hammering-sound. <P>SOLUTION: The outer periphery of a movable rubber film 60 is supported by a partition member 36, a cylindrical portion 66 is formed at the center of the movable rubber film 60 in a projecting manner, and the second orifice passage 76 is formed using an inner hole 68 of the cylindrical portion 66. An annular end surface of the cylindrical portion 66 is formed as a contact inclined surface 70 located on a single plane inclined relative to a surface facing the movable rubber film 60 in the partition member 36. The contact inclined surface 70 abuts on the surface facing the movable rubber film 60 in the partition member 36, whereby the inner hole 68 of the cylindrical portion 66 is covered with the partition member 36 to interrupt the second orifice passage 76. <P>COPYRIGHT: (C)2012,JPO&INPIT |
