Plastic frame for a metal drain grate

Abstract

The present disclosure relates generally to a drain channel and grate assembly comprising a drain channel together with a frame for a drain grate. The drain grate is a metal drain grate having a series of lateral spaced elongate drain bars interconnected by longitudinal spaced and transversely orientated load bars. The perimeter frame is configured to retain and substantially encase at least part of the perimeter of the drain grate. The perimeter frame comprises a first frame component which is detachably connected to a second frame component.

1 - 13 . (canceled) 
     
     
         14 . A drain grate perimeter frame comprising:
 a first frame component including a first rail member having a first elongate rail channel; and   a second frame component including a second rail member having a second rail channel, the second frame component detachably connected to the first frame component whereby the rail channels are together adapted to retain at least part of a perimeter of a drain grate.   
     
     
         15 . The drain grate perimeter frame of  claim 14 , wherein the first frame component and the second frame component each include a plurality of longitudinally spaced and transversely oriented crossbars. 
     
     
         16 . The drain grate perimeter frame of  claim 15 , wherein the crossbars of the first and second frame components are connected to the first and second rail members, respectively, and align for detachable connection with one another. 
     
     
         17 . The drain grate perimeter frame of  claim 16 , wherein the crossbars each include a male or a female component configured to connect with a female or a male component, respectively, of a corresponding crossbar. 
     
     
         18 . The drain grate perimeter frame of  claim 17 , wherein the male component includes a resiliently flexible element arranged to releasably engage a recess of the female component of the corresponding crossbar. 
     
     
         19 . The drain grate perimeter frame of  claim 18 , wherein the male component includes a plug which together with the flexible element are arranged to releasably engage a socket and the recess of the female component of the corresponding crossbar. 
     
     
         20 . The drain grate perimeter frame of  claim 14 , wherein the first and second frame components each include an end bar arranged to interconnect with an aligned end bar of the corresponding frame component. 
     
     
         21 . The drain grate perimeter frame of  claim 20 , wherein the interconnected end bars are together adapted to engage the drain grate to prevent the drain grate from sliding longitudinally. 
     
     
         22 . The drain grate perimeter frame of  claim 21 , wherein the interconnected end bars include a stepped rebate into which an integral end plate of the drain grate is received. 
     
     
         23 . The drain grate perimeter frame of  claim 14 , wherein the perimeter frame is a moulded plastics perimeter frame. 
     
     
         24 . A drain channel or pit and grate assembly comprising:
 a first frame component including a first rail member having a first rail channel, the first frame component being detachably connected to a second frame component including a second rail member having a second rail channel which together with the first rail channel is adapted to retain at least part of a perimeter of a drain grate; and   a drain channel or pit including at least a pair of opposing lands being configured to removably receive the first and second frame components, respectively, to support the drain grate.   
     
     
         25 . The drain channel or pit and grate assembly of  claim 24 , wherein the first and second frame components each include a plurality of longitudinally spaced and transversely oriented crossbars. 
     
     
         26 . The drain channel or pit and grate assembly of  claim 25 , wherein the crossbars of the first and second frame components are connected to the first or second rail members, respectively, and align for detachable connection with one another. 
     
     
         27 . The drain channel or pit and grate assembly of  claim 26 , wherein the crossbars each include a male or a female component configured to connect with a female or a male component, respectively, of a corresponding crossbar. 
     
     
         28 . The drain channel or pit and grate assembly of  claim 27 , wherein the male component includes a resiliently flexible element arranged to releasably engage a recess of the female component of the corresponding crossbar. 
     
     
         29 . The drain channel or pit and grate assembly of  claim 28 , wherein the male component includes a plug which together with the flexible element are arranged to releasably engage a socket and the recess of the female component of the corresponding crossbar. 
     
     
         30 . The drain channel or pit and grate assembly of  claim 24 , wherein the first and second frame components each include an end bar arranged to interconnect with an aligned end bar of the corresponding frame component. 
     
     
         31 . The drain channel or pit and grate assembly of  claim 30 , wherein the interconnected end bars are together adapted to engage the drain grate to prevent the drain grate from sliding longitudinally. 
     
     
         32 . The drain channel or pit and grate assembly of  claim 31 , wherein the interconnected end bars include a stepped rebate into which an integral end plate of the drain grate is received. 
     
     
         33 . The drain channel or pit and grate assembly of  claim 24 , wherein the first and second frame components each include a key adapted to engage a keyway of the drain channel or pit to retain the drain grate within said channel or pit. 
     
     
         34 . The drain channel or pit and grate assembly of  claim 33 , wherein the key includes a barbed finger element.