Method and device for installing or renovating a basin

Abstract

A method is described for installing or renovating a basin in relation to a surface, wherein the basin includes at least a basin body ( 1 ) with top ( 2 ), frame ( 7 ) and cover ( 9 ), the method including lifting the basin frame from the basin body into a first position, then placing a formwork ring ( 11 ) around the basin top ( 2 ), lowering the basin frame into a second position wherein the frame is aligned on a level with said surface, the basin frame running through said formwork ring and into the basin body, injecting a casting mixture into a cavity formed between the surrounding ground and the basin frame.

1 . A method for installing or renovating a basin in relation to a surface, wherein the basin includes at least a basin body ( 1 ) with top ( 2 ), frame ( 7 ) and cover ( 9 ), the method including lifting the basin frame from the basin body into a first position,
 characterized in the further steps of:   placing a formwork ring ( 11 ) around the basin top ( 2 ), lowering the basin frame into a second position wherein the frame is aligned on a level with said surface, the basin frame running through said formwork ring and into the basin body,   injecting a casting mixture into a cavity formed between the surrounding ground and the basin frame.   
     
     
         2 . A formwork ring ( 11 ) for use when installing or renovating a basin in relation to a surface, the basin including at least a basin body ( 1 ) with top ( 2 ), frame ( 7 ) and cover ( 9 ),
 the formwork ring including an annular skirt ( 111 ) and an inward facing flange ( 112 ) attached to one end of the skirt, the flange ( 112 ) being adapted to fit tightly around the basin frame ( 7 ),   characterized in that the skirt is ( 111 ) dimensioned to project outside the basin top ( 2 ) and is adapted to rest on mass outside the basin top ( 2 ).   
     
     
         3 . A formwork ring according to  claim 2 , further including a gasket ( 113 ) fastened to the inner circumference of the flange ( 112 ). 
     
     
         4 . A formwork ring according to  claim 2 , wherein the skirt is cylindrical. 
     
     
         5 . A formwork ring according to  claim 2 , wherein the skirt is conical. 
     
     
         6 . A formwork ring according to  claim 2 , the formwork ring being produced in metal, a fibrous material or a polymer. 
     
     
         7 . A formwork ring according to  claim 2 , wherein the skirt and flange are produced in a stiff polymer material and the gasket is shaped as a lip in a flexible polymer material, the formwork ring being produced as one unit. 
     
     
         8 . A formwork ring according to  claim 2 , wherein the flange is produced as a separate flat ring or washer with a groove around the periphery, the skirt being shaped as a flat side wall that is adapted to be bent into shape and snapped into the groove.