Aco Severin Ahlmann Gmbh & Co Kg

Axel Rathmann

Hans-Julius Ahlmann

Manfred Rinckens

A cover grating for a drainage channel or a similarly hollow body which can be installed in the ground is presented, wherein the cover grating is produced in a single piece and more particularly from a sheet metal strip, comprising at least two longitudinal webs extending on the underside of the cover grating and inlet slots formed in the cover grating between these longitudinal webs and comprising transverse webs resulting from the slot forming operation and extending on the lower side of the cover grating wherein the transverse webs are provided at each of their end regions with at least one receiving projection which at least partially engages in to a respective complementarily formed receiving slot in the longitudinal web.

Grating

A cover for a drainage device, in particular a drainage channel with a channel body such that the cover can be set on an upper edge of the channel body, which comprises detent ridges that extend into the channel body and which has at least one fixing element to attach the cover to the channel body or to a frame disposed on the channel body to reinforce its upper edge, such that in a locked state the fixing element engages a recess in the channel body or frame. In order to achieve durable fixation of the cover on the channel body, while enabling the fixing element to be simple to manufacture and install, and the channel cross-section to remain free, the detent ridges comprise at least one aperture to guide the fixing element, which projects out of that aperture.

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Hude, Germany

Axel Rathmann