| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe joint for directly confirming a lock state by means of visual observation, and capable of preventing positional dislocation, falling-off, and deformation of lock members. SOLUTION: This pipe joint has a tubular joint body 11 for arranging pin inserting holes 13 in both side tenon parts 12, and the lock members 20 composed of an almost U-shaped plate spring mold 21. The two lock members 20 are housed and arranged in the both side tenon parts 12 of the joint body 11 so that mutual connecting pieces 25 are opposed in the center. A lock pin 23 on the leg part tip in the lock members 20 is protrusively arranged outside via the pin inserting hole 13. The lock pin 23 is constituted so as to engage with pin engaging holes 33 and 43 of pipes 30 and 40. The lock pin 23 is provided with a cam surface 23a for inwardly deflecting a leg part 22 by immersing the pin 23 in the pin inserting hole 13 by being pushed to a pipe inside surface at inserting operation time of the tenon parts 12.
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