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.

1 .- 8 . (canceled) 
   
   
       9 . Cover for mounting on upper edges of a drainage channel by means of fixing devices, including fixing pieces adapted to engage fixing counterparts provided on the drainage channel or casing defined by it, and comprising a frame to which the fixing pieces are attached and means adapted to mount and to retain a surface element. 
   
   
       10 . Cover according to  claim 9 , wherein the frame comprises a self-contained component which is manufactured as a separate assembly. 
   
   
       11 . Cover according to  claim 9 , wherein the surface element is a module from a set including at least two of a first grating, a closed plate, and a second grating having a different shape from the first grating. 
   
   
       12 . Cover according to  claim 9 , wherein the frame is fabricated from sheet steel. 
   
   
       13 . Cover according to  claim 9 , wherein the frame is constructed such that drainage water is fed into the drainage channel between at least one of the frame and upper edges of the drainage channel, and the frame and the surface element into the drainage channel. 
   
   
       14 . Cover according to  claim 9 , wherein clips joined to the frame are provided for the mounting of the surface element. 
   
   
       15 . Cover according to  claim 9 , wherein the surface element is detachably mounted in the frame. 
   
   
       16 . Cover according to  claim 9 , wherein the surface element comprises a slotted channel member. 
   
   
       17 . Cover according to  claim 11 , wherein the closed plate is made from a transparent material.