As for female type connector 15 of this invention, the surface which when female type connector 15 has been connected to male type connector 10 confronts in engagement nail 14 of the engagement wall 217, includes the tilt slope 222 where engagement nail 14 rises female type connector according to the sliding direction of the engagement nail 14 for the engagement wall 217 at the time of connection operation of 15 and male type connector 10. In addition, as for male type connector 30 of this invention, when female type connector 35 has been connected to male type connector 30, the surface which faces in the engagement wall 417 of engagement nail 34, includes the tilt slope 34a where the engagement wall 417 rises female type connector according to the sliding direction of the engagement wall 417 for engagement nail 34 at the time of connection operation of 35 and male type connector 30.本発明のメス型コネクタ15は、メス型コネクタ15がオス型コネクタ10に接続された状態で係合壁217の係合爪14に面する面が、メス型コネクタ15とオス型コネクタ10との接続操作時に係合壁217に対する係合爪14の摺動方向に沿って係合爪14が上る傾斜面222を含む。また、本発明のオス型コネクタ30は、メス型コネクタ35がオス型コネクタ30に接続された状態で、係合爪34の係合壁417に向かい合う面が、メス型コネクタ35とオス型コネクタ30との接続操作時に係合爪34に対する係合壁417の摺動方向に沿って係合壁417が上る傾斜面34aを含む。
