| 摘要 |
PURPOSE:To prevent the occurrence of short-circuit even when an orifice member is sunk inside by a method wherein a plurality of annular seal protrusions positioned along both sides, in the axial direction of a mound shaft, of an opening groove formed in an orifice member are formed on the seal rubber layer of an outer cylinder fitment of which the mount consists in a liquidtight state. CONSTITUTION:In a mount 10, a plurality of liquid chambers 40 and 42 are formed by a plurality of pocket parts 20A and 20B through a plurality of opening windows 14A and 14B of an intermediate sleeve 14. An arcuate orifice member 30 having an opening groove 30A of an outer peripheral surface in which an orifice passage 44 is formed is fitted in a plurality of recessed grooves 14C in intermediate sleeves 14 positioned on both sides in a peripheral direction of a first liquid chamber 40. Further, a mount is formed in a liquidtight state by means of the seal rubber layer 18 of the outer cylinder fitment 16. In this case, a plurality of annular protrusions 118B positioned along both sides of the opening groove 30A of the orifice member 30 are formed on the seal rubber layer 18. |
