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    • 9. 发明专利
    • Fluid-filled type vibration damping device
    • JP5290121B2
    • 2013-09-18
    • JP2009241988
    • 2009-10-21
    • 東海ゴム工業株式会社
    • 睦 村岡
    • F16F13/18F16F13/08
    • PROBLEM TO BE SOLVED: To provide a fluid-sealed vibration-insulating device having a novel structure capable of sufficiently ensuring the durability of a body rubber elastic body while achieving the requested spring characteristic of the body rubber elastic body. SOLUTION: The fluid-sealed vibration-insulating device is formed with a constricted part 28 consisting of a reverse tapered part 30 which is diametrically reduced gradually toward an opening direction on one opening part side from a fixing position of a partition member 70 with the partition member 70 fitted and fixed in a second fitting member 14, and a tapered part 32 which is diametrically enlarged gradually toward the opening direction from a small diameter end of the reverse tapered part 30, and a flange-like part 34 on a large diameter end of the tapered part 32. By fixing an outer circumferential surface of the large diameter end of the body rubber elastic body 16 to an inner circumferential surface of the tapered part 32, the body rubber elastic body 16 extends from the tapered part 32 to the first fitting member 12. Further, an annular stepped surface 88 projecting and expanding on the outer circumferential surface is provided on an intermediate part in the axial direction of the outer circumferential surface of the body rubber elastic body 16, and a thick-walled part 90 is integrally formed in a larger diameter side part than the annular stepped surface 88. COPYRIGHT: (C)2011,JPO&INPIT