| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a valve mechanism which can surely close a fluid even with a simple structure and can arbitrarily change a flow rate of the fluid passing through the mechanism depending on the pressure applied thereto. <P>SOLUTION: When pressure is applied to the fluid in a fluid reservoir 142 by pressurizing the reservoir 142 of a container body 140 in the valve mechanism 10, a flow path of the fluid is formed since the maximum outer diameter of a valve 21 becomes smaller than the inner diameter of an opening due to flexibility of the valve 21 of a valve member 20 to cause the valve 21 to separate from the inner peripheral surface of a supporting member 30 when the pressurized fluid is made to flow in from distributing paths 31. On the other hand, if the pressurizing force to the fluid reservoir 142 is canceled, the inner peripheral surface of the supporting member 30 again comes into contact with the valve 21 of the valve member 20. Thus the air can be prevented from entering the reservoir 142 through the opening 32. <P>COPYRIGHT: (C)2004,JPO |
