| 摘要 |
PROBLEM TO BE SOLVED: To enhance washability of a male connector with a male lure inside whose outer casing that surrounds the male lure a spiral projection is formed.SOLUTION: A male connector 1 comprises: a male lure 11 to which a flow channel 18 is formed; a base plate 13 externally projecting out from the bottom of the male lure 11; an outer case 15 provided to the bottom plate 13; and a spiral projection 16 formed inside the outer case 15. At least either one of the bottom plate 13 or the outer case 15, an open hole 21 or 22 is formed. |
