| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a valve mechanism which can surely close a fluid in spite of 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 valve element 21 of a valve member 20 moves to an open position where it opens an opening 41 of a valve seat member 40. Thus the fluid passes through the opening 41. On the other hand, when the pressurizing force to the fluid reservoir 142 is canceled, the valve element 21 of the valve member 20 moves to a close position where the opening 41 of the valve seat member 40 is closed by elastic restoring force of four couplings 32. Thus the air can be prevented from entering the fluid reservoir 142 through the opening 41. <P>COPYRIGHT: (C)2004,JPO |
