| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for fixing a valve element to attain a stable sealing by simple working at a low cost. SOLUTION: The fluid control valve 1 is provided with a valve element 23, a shaft 22, and an annular elastic body 29. In the valve element 23, an annular groove 23b is formed in the inside-diameter surface of an insertion hole 23a for a tip end 22a of a shaft 22. In the shaft 22, an annular groove 22b is formed in the tip end 22a. The an annular elastic body 29 is fit compressedly between the groove 23b and a groove 22b. The fluid control valve 2 is provided with a valve element 53, a shaft 52, and a steel ball 59. The valve element 53 comprises an insertion hole 53a for a tip-end face 52a of the shaft 52, an annular projection 53b formed at the inlet port of the insertion hole 53a, the insertion hole 53a, and an annular projection 53b. In the shaft 52, a hole 52b is formed axially in the tip-end face 52a. By press-fitting the steel ball 59 in the axially made hole 52b, the outside diameter of the tip-end face 52a is made larger than the inside diameter of the annular projection 53b. COPYRIGHT: (C)2006,JPO&NCIPI
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