PROBLEM TO BE SOLVED: To combine high sealing property with high tensile strength in the case of connecting a tubular member by inserting a male member into a female member.SOLUTION: An outer peripheral surface 12 of a male lure member 10 is tapered. A seal surface part 12a is formed at the distal end side of the outer peripheral surface 12. A rough surface part 12b rougher than the seal surface part 12a is formed at the proximal end side of the outer peripheral surface 12. The outer peripheral surface 12 of the male lure member 10 is inserted into an insertion hole 23 in a barrel member 21 to be connected.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】メス部材をオス部材に差し込むことによって管状部材を接続する場合に高いシール性及び高い引張強度を両立できるようにする。【解決手段】オスルアー部材１０の外周面１２はテーパ面とする。外周面１２の先端側にシール面部１２ａを形成する。外周面１２の基端側にシール面部１２ａよりも粗い粗面部１２ｂを形成する。オスルアー部材１０の外周面１２を胴部材２１の差込孔２３に差し込んで接続状態とする。【選択図】図１
