| 摘要 |
<p>PURPOSE: To prevent damage of a bladder, and improve the working service life by forming reinforcing bodies in a shape corresponding to a deformation shape of an elastic bag body, and regulating bending of a bending part of a bottom part of the elastic bag body. CONSTITUTION: Reinforcing bodies 13 are arranged on an inside surface of a bottom part 12 of a bladder 11. The reinforcing bodies 13 are arranged in a shape corresponding to a deformation shape of the pleat type bladder 11, and for example, when the bladder 11 is deformed in a triangular shape, the three plate-like reinforcing bodies 13 are arranged in a triangular shape. Liquid F flows in a vessel main body 17, and when liquid pressure is also increased, the bottom part 12 also bends, and the elastic bag body 11 is deformed in a star like column shape having the three sides, and capacity is reduced to the minimum, and resistance force to bending and twisting is increased, and a prescribed deformation mode is held. At this time, a bending part C of the bottom part 12 bends inward, and an inside surface contacts with a reinforcing part 13a. Therefore, since the inside surface of the bending part C is held over the whole circumference by the reinforcing bodies 13, even if larger bending force is applied, since it does not bend inward more than that, a bending degree can be regulated by the reinforcing bodies 13.</p> |
