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Rüdiger Keinberger

Peter Eckerstorfer

Markus Ecker

Roland Eckerstorfer

The invention relates to a drainage element () from plastic and a process for its production, which features at least one opening (), in which an insert () is placed, whereas insert () features a harder surface than drainage element (), whereas insert () features at least one locking projection () with locking surface () at is outer circumference, and drainage element () in opening () features at least one latching surface (), which is formed via a recess in the girthed area of opening () and insert () can be pressed into surface (), whereas locking surface () of locking projection () of insert () enjoins the latching surface () in placed conditions, so that insert () is positively secured against pulling out in opening () of drainage element ().

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Österreich, Austria

Rüdiger Keinberger