| 摘要 |
PROBLEM TO BE SOLVED: To prevent an inserted pipe from slipping out inadvertently by temporarily fastening the inserted pipe to a connecting main body to fix the pipe. SOLUTION: A pipe P is first inserted in an inner peripheral hole 2a of a threaded tube 2. At this time of insertion, the pipe P axially slides in relation to a pawl part of a pawl ring 6 in the state of pushing the pawl part open to the outer peripheral side, and the pipe P is made reach a second hole part 12 of an inner peripheral hole 1a. In this state, the pawl part of the pawl ring 6 is brought into pressure contact with the outer peripheral surface of the pipe P, so that the pipe P is temporarily fastened to the threaded tube 2 and a body part 1. In this temporarily fastened state, the threaded tube 2 is fastened. A compressible ring 3 provided between a pressure cylinder part 21 of the threaded tube 2 and a boundary end face 13 is therefore compressed in the axial direction. At the time of compression, the inner peripheral part of the compressible ring 3 is displaced inward. With this displacement, the inner peripheral part comes in slip-off stop contact with the pipe P. Slip-off of the pipe P is therefore prevented. |
