Channel for drainage of surface water or bulk material comprises lower part opposite which is displaceable relative to upper part, with movable part in area of shoulder

摘要

The channel (1) is for drainage of surface water and/or bulk material. It has a lower part (A) opposite to which is a displaceable upper part (A1). In the area of a shoulder (4) of the withdrawable upper part a closed area (17) is formed which can be pushed in or out. The channel upper and lower parts have seepage apertures (6), particularly slots, which on being pushed together have an identical and possible overlapping structure. Particularly on the channel lower part at least one outwardly extending, possibly displaceable, anchor plate component is provided, which is angular, of single piece structure or elongated.