| 摘要 |
PROBLEM TO BE SOLVED: To provide a bladder apparatus 1 which prevent a bladder 15 from being caught between an upper part ring 13 and a spacer 16. SOLUTION: The bladder apparatus 1 is equipped with an upward/downward movable piston 11, the upper part ring 13 connected concentrically with the piston 11 in an upper part end part which is one end of the piston 11, a lower part ring 14 arranged concentrically with the piston 11 in a lower part end part which is the other end of the piston 11, the bladder 15 in which one side is connected with the upper part ring 13 and the other side is connected with the lower part ring 14, and a spacer 16 which stops the upper part ring 13 at a prescribed position when the upper part ring 13 is brought down. The spacer 16 has a protrusion 16a protruding in the radial direction at a position separated by a prescribed distance (e.g. 3 cm) from an upper part ring side end part which is the end part on the upper part ring side of the spacer 16. COPYRIGHT: (C)2006,JPO&NCIPI |
