| 摘要 |
PROBLEM TO BE SOLVED: To provide an insert joint for a corrugated pipe capable of allowing a worker to easily confirm connection of the corrugated pipe. SOLUTION: The insert joint 1 is provided with a cylindrical joint body 10, an airtight packing 31 arranged in an inner hole thereof and adhered to an outer peripheral surface of the corrugated pipe, a retainer 40 capable of enlarging and contracting a diameter and having a claw fitted with an annular recession of the corrugated pipe in contraction of the diameter, and a retainer presser 50 preventing the retainer 40 from being slipped out of a joint body and contracting the diameter of the retainer. The insert joint 1 is further provided with an indicator member 78 for informing the worker that the corrugated pipe reaches an inner part of the inner hole, and an indicator driver 70 moved to the inner part of the inner hole and driving the indicator member 78 when the pipe is inserted into the inner hole. COPYRIGHT: (C)2009,JPO&INPIT
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