PROBLEM TO BE SOLVED: To keep a fitted state to a connected member while being connected to the connected member.SOLUTION: A connection member 1 includes a connection member body 3, a lock member 4 and an engaging mechanism. The connection member body 3 includes a fitting part 5 which can be fitted in a specified fitting direction into a fitted part 2a of a connected member 2, and a communication path 3a communicated with a communicated path 2d of the connected member 2 while the fitted part 2a and the fitting part 5 are fitted. The lock member 4 includes a screwing part 8 which can be screwed to a screwed part 2c of the connected member 2, and an attaching part 9 attached to the outer periphery of the connection member body 3 so that the screwing part 8 becomes rotatable around an axis along the fitting direction to the connection member body 3. The engaging mechanism includes a connection member side gear part 6d and a lock member side gear part 9d for engaging the attaching part 9 at a fastening position and the connection member body 3 so as to regulate the rotation around the axis to the connection member body 3 of the attaching part 9 at the fastening position.COPYRIGHT: (C)2014,JPO&INPIT【課題】被接続部材に接続された状態で、被接続部材に対する嵌合状態を保持すること。【解決手段】接続部材1は、接続部材本体3と、ロック部材4と、係合機構とを備えている。接続部材本体3は、被接続部材2の被嵌合部2aに対して規定の嵌合方向に嵌合可能な嵌合部5と、被嵌合部2aと嵌合部5とが嵌合した状態で被接続部材2の被連通通路2dに連通する連通通路3aとを有する。ロック部材4は、被接続部材2の被螺合部2cに対して螺合可能な螺合部8と、螺合部8が接続部材本体3に対して嵌合方向に沿った軸回りに回転可能となるように、接続部材本体3の外周に取り付けられた取付部9とを有する。係合機構は、締付位置にある取付部9の接続部材本体3に対する軸回りの回転が規制されるように、締付位置にある取付部9と接続部材本体3とを係合する接続部材側歯車部6d及びロック部材側歯車部9dを備えている。【選択図】図1
