Grating with a plate detachably mounted in a frame for covering a drainage channel

Abstract

Covers for mounting onto upper edges of drainage channels or similar surface water drainage arrangements are well known, which are mounted onto the drainage channel by means of fixing devices. To simplify construction, storage and assembly it is proposed that the cover include a frame to which fixing means are attached and which includes devices for the retention and fixing of surface elements. The surface elements may be formed in various ways.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a Section 371 of International Application No. PCT / EP2005 / 011032, filed Oct. 13, 2005, which was published in the German language on Apr. 27, 2006, under International Publication No. WO 2006 / 042695 A1 and the disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]The invention concerns a cover, in particular a grating or a plate for attaching to the upper edges of a drainage channel or similar surface drainage arrangement.[0003]To drain streets, public squares, entrances or similar surfaces drainage channels, gulley holes, site inlets etc are employed. Drainage channels will be discussed comprehensively for the sake of simplicity in the following explanation.[0004]Such drainage channels comprise a channel section, which is firmly embedded in the ground, and a cover, in particular a grating, that lies on the upper edges of the channel and is connected firmly to the channel by fixing de...

AI Technical Summary

Benefits of technology

[0006]The object of the invention is to provide a cover developed from the prior art cited at the start, so that construction, storage and interchangeability is simplified.

[0008]Thus a single frame is made available for all possible “types”, which is able to be fastened by means of the fixing piece on the drainage channel. The frame serves to retain the various surface elements, so that these do not have to be provided with the fixing pieces, which simplifies the construction and fabrication considerably. Connection of the surface elements to the frame may be effected by the manufacturer or even by the user himself, when the latter wants to exchange a damaged surface element or install a different design.

[0013]Additionally, the frame is preferably configured so that surface water drains into the drainage channel between the frame and the upper edges of the drainage channel. As a result, it is also possible to use completely closed surface elements and nevertheless to maintain a drainage function. On the other hand such “additional” drainage apertures do not cause trouble, if a usual grating is employed as surface element. In addition or as an alternative to such a drainage aperture between frame and upper edge of the channels it is possible to provide drainage apertures or slots between the frame and the surface elements.

[0015]For easy replacement of damaged surface elements it is advantageous if these are connected detachably with the frame, which may then be re-used.

Problems solved by technology

Since the various covers require different design principles for the fixing devices, hence for example steel gratings cannot be provided with the identical fixing devices as for cast iron gratings, the construction costs in the case of larger model ranges are considerable.

Storage is also expensive.

Interchange of different “designs” is not possible without further development.

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