| 摘要 |
PURPOSE:To avoid the breakage of a member for partitioning a through-void from a fluid chamber, and prevent the bubbles from being left in the liquid in the fluid chamber. CONSTITUTION:A horizontal inner cylindrical body 1 is connected to a horizontal outer cylindrical body 2 with an elastic body 3, and an intermediate cylindrical body 4 is embedded in the elastic body close to the outer cylindrical body between the cylindrical bodies. A main fluid chamber 5 is formed to the lower side of the inner cylindrical body and a sub fluid chamber 6 is formed to the upper side respectively. A penetrating void 8 is provided to the upper part of the inner cylindrical body, and the penetrating void 8 is demarcated from the sub fluid chamber by a cylindrical wall 12 of a recessed part 4b provided on the upper side of the intermediate cylindrical body. Both fluid chambers are communicated with each other by orifices 7, 7, and the fluid 9 is sealed from an upper side opening 7a of the sub fluid chamber to the upper position to make a liquid chamber part 6a, and the upper half part is made an air chamber part 6b. A guide surface 11 which is extended diagonally upward toward the opening 7b to the lower side of the orifice with a center part 3c as the lowest point, and forms a V-shaped section is formed on the lower surface of the elastic body to demarcate the upper surface of the main fluid chamber, and bubbles contained in the liquid in the main fluid chamber are returned to the air chamber part. |
