| 摘要 |
PROBLEM TO BE SOLVED: To provide a one-operation type joint for synthetic resin tubes capable of removing an inserted tube without disassembling after using. SOLUTION: This joint 1 is provided with a main body 1, and a cap nut 17 is connected to the main body 1. A fall stopper ring 29 is arranged inside a tapered part of the cap nut. The fall stopper ring 29 is cut in a part thereof in the circumferential direction to form a clearance 31, and the periphery thereof is formed into a tapered shape corresponding to an abutment part 26 of the cap nut, and diameter of the fall stopper ring is shrunken when the fall stopper ring moves in a direction for separating from the main body. The inner periphery of the fall stopper ring 29 is formed with a spiral projection to bite the periphery of the synthetic resin tube 41 to stop a fall thereof. Rotation of the fall stopper ring is prevented by a screw 39 fitted to the cap nut. Tubes can be connected, while preventing a fall thereof, by one operation for inserting the tube 41 from a cap nut side. When removing the tube, the tube is removed by rotating the tube in the predetermined direction without disassembling the joint. COPYRIGHT: (C)2005,JPO&NCIPI
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