| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a check valve imparting energizing force in a direction toward a valve seat to a valve element.SOLUTION: A check valve 10a has a valve case 25 having a valve chamber 23 in an inside thereof. The valve case 25 is constituted by a valve seat member 21 having a valve hole 22, and a case body 24 having a cylindrical member 26 equipped with a holder 27. A valve element 31 is arranged in the valve chamber 23. A plurality of fitting grooves 35 are provided on the holder 27 of the valve case 25. A loop like elastic member 41 is attached in the valve chamber 23 in a direction crossing a flow of liquid, and the elastic member 41 is fitted in the fitting groove 35, and imparts elastic force in a direction toward the valve hole 22 to the valve element 31 at plural portions shifted in a circumferential direction to the fitting groove 35.SELECTED DRAWING: Figure 3 |
