Coupling pipe part for interconnecting corrugated pipe parts and pipe connection

摘要

Plastics coupling pipe part (1) for connecting corrugated plastic pipe (2), which coupling pipe part comprises abutment projections (3) and a radially resilient displaceable lip (6) carrying an inwardly directed cam (4). …??The lip (6) is surrounded by openings (21) delimited by a rectangular incision (11) in the plastics pipe. …??The transition part (7) connecting the lip (6) with the pipe wall has a smaller width than the end edge (8) of the lip. In a pipe connection with such a coupling pipe part the coupling cam (4) engages a flank (9) of a wave valley of a corrugated pipe (2).