| 摘要 |
PROBLEM TO BE SOLVED: To provide a protection tube coupling which suitably couples double protection tubes arranged along the wall, or the like, and uncouples them easily. SOLUTION: The protection tube coupling 5 comprises a resilient latching operation section 3 having: a portion 3a for bringing a protection tube into locked state by latching to the outer surface of the protection tube inserted into the hub 1 of a protection tube coupling 5; and a portion 3b for uncoupling the protection tube by shifting the latching portion 3a to the outside of the hub 1 through operation from the outside of the hub, wherein at least the uncoupling portion 3b is arranged in a position other than the wall surface W side of a joint 2. COPYRIGHT: (C)2009,JPO&INPIT
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