| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an inexpensive tank for a hydraulic device capable of mounting a hollow elastic body not in the way, dispensing with a protection cover, reducing its deformation, free from the contact and damage, reducing the liquid leakage, and having high durability. <P>SOLUTION: In this tank 1 for the hydraulic device wherein a capacity of the tank is changed by the elastic deformation of the bag-shaped hollow elastic body, an opening part 1b is formed on the tank 1, the hollow elastic body 2 is placed in a tank inner part 1a from the opening part, and the bag-shape of the hollow elastic body is kept in a state that the pressures inside and outside of the tank are approximately same as each other. An opening side 2b of the hollow elastic body is held by a supporting member 3, and mounted on the opening part 1b, and the hollow elastic body is a rubber hollow body, and expandable in the radial direction, or in the radial and axial directions to a shaft. The opening part is formed on an end part of the cylindrical tank. Further a blocking part 3d for blocking an inner side 2a of the hollow elastic body and an outer side of the tank, and a communication hole 3a for communicating the hollow elastic body and the tank, are formed. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
