| 摘要 |
PURPOSE:To smooth expansion of a bladder by providing a bladder which is disposed in a vessel body and formed by sticking together peripheries of two parts of soft elastic material longitudinally divided into two and disposing a reinforcement on a part of the sticking portion. CONSTITUTION:A coupling tube 7 is coupled to an entrance and exit 71 mounted at the lower portion of a vessel body 1 which is rigid and airtightly hollow. A baggy deformable bladder 2 formed of a soft elastic material is disposed in the vessel body 1. The bladder 2 is formed by sticking the peripheries of two parts of soft elastic material 21, 22 longitudinally divided into two to the whole periphery 11, with one end thereof bent. One of two parts of soft elastic material 21, 22 is provided with an opening 10 mounted at the lower portion thereof for letting in and out a liquid, and the inside of the opening portion is retained by a cylinder 10. A reinforcing belt 9 is fixed to the upper sticking portion of the bladder 2, and a fixing tab 8 for fixing the vessel body 1 and the belt is coupled to the upper surface of the belt. In this arrangement, the bladder 2 can be smoothly expanded when a liquid flows in and out. |
