| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a coupling structure of spiral corrugated pipes which can secure the strict water-tightness of assembled portions while the integrity of assemblies is firmly maintained, in the assemblies coupled in line with synthetic resin-made spiral corrugated pipes which are used being installed in various fluid transfer pipes, such as sewer pipes and wastewater pipes. <P>SOLUTION: In the coupling structure of spiral corrugated pipes which establishes connection by abutting each other both the ends of synthetic resin-made spiral corrugated pipes (1) which have projections (1a) and recesses (1b) alternately formed in spirals on their outer peripheries, a synthetic resin-made coupling connection means (2), (2) which has a side level difference (2a) formed in a larger outer diameter than the outer diameters of the projections (1a) of the spiral corrugated pipe (1), and which has a thickness capable of holding one or more recesses (2b), is adhesively connected, being integrated into one, to the outer surfaces of both the ends of the spiral corrugated pipes (1). <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
