PROBLEM TO BE SOLVED: To provide a connection member capable of reliably inhibiting a fixture from moving in a loosening direction of the tightening between a male connector and a female connector.SOLUTION: When a front part 2F of a male connector 2 is connected to a rear part 15B of a female connector 15 and the connection part is fastened and fixed by a fixture 10 from the outer periphery, a second end part 4.2T side of a locking part 4 of the male connector 2 comes into contact with a first taper T1 of the fixture 10 and then comes into contact with a step part 11DS through a straight part 11S. The second end part 4.2T side receives external pressure from the straight part 11S of the fixture 10 from the outside, comes into contact with the step part 11DS, and is fixed thereto. The second end part 4.2T side is moved to a second end part side, which is a direction of loosening the fixture 10, by friction resistance to the straight part 11S and the contact with the step part 11DS and thus can prevent the tightening of the connection part between the male connector 2 and the female connector 15 from being loosened.SELECTED DRAWING: Figure 13COPYRIGHT: (C)2017,JPO&INPIT【課題】固定具がオスコネクタとメスコネクタとを締め付けを緩める方向へ移動するのを確実に阻止することができる接続部材を提供する。【解決手段】オスコネクタ2の前方部2Fをメスコネクタ15の後方部15Bに接続し、当該接続部を外周から固定具10´で締め付けて固定するとき、オスコネクタ2の係止部4の第2端部4.2T側が、固定具10´の第1テーパーT1に接触し、さらにストレート部11Sを経て、段部11DSと接触する。さらに第2端部4.2T側は、外側から固定具10´のストレート部11Sより外圧を受け、段部11DSに接触して固定される。第2端部4.2T側は、ストレート部11Sとの摩擦抵抗と段部11DSとの接触により、固定部10´が緩む方向である第2端部側に移動して、オスコネクタ2とメスコネクタ15の接続部の締め付けの緩みを防止することができる。【選択図】図13
