Connecting structure

摘要

By press-fitting a bush body 311 of a press-fitting member 31 having a flange 311a into one end of a resin tube 11, a diameter-enlarged end portion 11a with an enlarged diameter formed with a tapered shoulder wall 11b is formed in the resin tube. Abase portion 211 of a clamping member 21 having a restraining inner peripheral surface is inserted and fitted to an outer periphery at the other end side of diameter-enlarged end portion, so that the clamping member is firmly attached and fixed or fitted to a tapered end portion 311b of the press-fitting member in a resisting relation with a resisting end portion 211b. A sealing member 51 is held between a back surface 311d of the flange 311a and the opposing end poriton 211a on the outer peripheral surface of the diameter-enlarged end portion. When an tubular mating member 61 formed with an inserting end portion 611 is inserted to the sealing member held on the outer peripheral surface of the diameter-enlarged end portion and the base portion, a first engaging element 212 extending from the base portion is engaged with a second engaging projection 612 projecting from the outer periphery of the insertion end portion 611, and in this manner, the resin tube is connected to the tubular mating member 61. <IMAGE>