DETACHMENT PREVENTIVE DEVICE FOR TUBE FITTING PART

摘要

PROBLEM TO BE SOLVED: To efficiently and easily manufacture a detachment preventive device while certainly displaying excellent detachment preventive function and rotation preventive function by rational reconstruction against a falling-stop member. SOLUTION: A first biting projected part 8A free to bite on an outer peripheral surface 2a of an insertion tube part 2 along a direction where a component in the tube peripheral direction becomes a main body is formed on an inside surface 8b of a falling-stop member 8 provided between the outer peripheral surface 2a of the insertion tube part 2 and an inner peripheral surface of a push ring 4, and a whirling-stop member 12 furnished with a second biting projected part 12A free to bite on an outer peripheral surface 2A of the insertion tube part 2 along a direction including a component in a tube shaft center X direction is provided on the falling-stop member 8.