| 摘要 |
PURPOSE:To cause an adequate vibration-damping force, by airtightly laying a rod through a partition wall which divides a large and a small air chambers from each other. CONSTITUTION:A large-diameter and a small-diameter pistons 5, 8, which are coupled to each other by a rod 11, are fitted in a large and a small air chambers 1, 2 which are defined by the pistons, a large-diameter and a small-diameter outer shells 6, 9 and diaphragms 7, 10 coupled to the outer shells. An orifice 4 is provided in a partition wall 3 which divides the air chambers 1, 2 from each other. An O-ring 13 is fitted in the hole 3a of the wall 3, through which the rod 11 is laid, so that the wall and the rod are airtightly sealed to each other. As a result, an adequate vibration-damping force is caused. |
