| 摘要 |
A pipe joint for connecting a corrugated spiral pipe includes an annular projection formed on the axially central portion, a spiral projection bonded on a portion on one side of this projection so as to engage with the spiral pipe, compressible and transformable ring-like sealing bodies bonded on the inner circumferential surfaces on the both sides of the spiral projection, and a small hole for injecting a hardening liquid agent and formed in a portion between the sealing bodies so as to penetrate the portion. A corrugated spiral pipe provided with a joint has the above mentioned joint fitted onto a pipe end of the spiral pipe, and is produced by filling a space portion between the ring-like sealing bodies with a hardened matter of a hardening liquid agent, so that the joint is water-tightly coupled with the pipe end of the spiral pipe. Further, in a method of connecting another spiral pipe with such a corrugated spiral pipe provided with such a joint, a block-like water sealing material is pressed into a valley portion of a pipe end of another spiral pipe, an elastic seal ring having a plurality of annular corrugations on the outer circumferential surface is fitted onto the upper surface of the water sealing material, and thereafter the pipe end is pressed into a tip end projecting portion of the joint body.
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