| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe coupling easy in the connection, superior in durability, usable for connecting pipe bodies in a narrow construction space, versatile without selecting an installation place, capable of coping with the expansion-contraction of a synthetic resin pipe body after construction in some construction modes, and superior in an appearance. SOLUTION: This pipe coupling is composed of a hard cylindrical shell 1, and a cylindrical rubber ring 2 with an outer peripheral surface integrally attached to its inner peripheral surface. A plurality of projection strip parts 3 are arranged at intervals in the peripheral direction on the inner peripheral surface of this cylindrical rubber ring 2. The cylindrical shell 1 is engaged with and locked on a projection part 4 arranged on the outer periphery of an opening edge part of the rubber ring 2. COPYRIGHT: (C)2006,JPO&NCIPI
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