Connection splice plate for connecting two portions of a wire cable tray, wire cable tray equipped with same and wire cable tray having two portions connected with such a splice plate

Abstract

The invention concerns a connection splice plate for connecting two portions of a wire cable tray consisting of wires of two different types, lengthwise wires and crosswise wires, said two portions being connected and assembled via their abutting crosswise wires: the splice plate comprises a U-shaped body ( 31 ) with two wings ( 32, 34 ) and a web ( 33 ), said wings ( 32, 34 ) including each at least two indentations ( 32 A, 34 A) with parallel edges, the indentations ( 32 A) of one wing ( 32 ) facing the indentations ( 34 A) of the other wing ( 34 ), the mutually parallel edges of one indentation being parallel to the mutually parallel edges of the other indentation, one of the edges of at least one of the opposite indentations bearing a lug ( 35 A called locking lug, said locking lugs being adapted to be folded, towards the inside of the U-shape of the body ( 31 ), on each of said crosswise abutting wires.

1 . Fishplate for connecting two portions ( 10 ,  20 ,  110 ) of a wire cable tray made up of wires of two different types, on the one hand, warp wires ( 11 ,  21 ,  111 ) and, on the other hand, weft wires ( 12 ,  22 ,  112 ), said two portions ( 10 ,  20 ,  110 ) being connected and thus assembled by means of their end weft wires ( 12 ,  22 ,  112 ), characterized in that it comprises a U-shaped body ( 31 ,  131 ) having two flanges ( 32 ,  132 ,  34 ,  134 ) and a web ( 33 ,  133 ), said flanges ( 32 - 132 ,  34 - 134 ) each comprising at least two notches ( 32 A, . . .  132 A . . .  134 A . . . ) with parallel edges, the notches ( 32 A . . .  132 A . . . ) of one flange ( 32 ,  132 ) facing the notches ( 34 A . . .  134 A) of the other flange ( 34 ,  134 ), the parallel edges of one notch being parallel to the parallel edges of the other notch, one of the edges of at least one of the facing notches carrying a locking lug ( 35 A, . . .  135 A . . . ), and said lugs being adapted to be bent over toward the interior of the U-shape of the U-shaped body ( 31 ,  131 ) over each of said end weft wires ( 12 ,  22 ,  112 ).  
   
   
       2 . Fishplate according to  claim 1 , characterized in that at least one locking lug enables rotatable mounting of the fishplate ( 30 ,  130 ) on a portion ( 10 ,  20 ,  110 ) of the cable tray.  
   
   
       3 . Fishplate according to  claim 1 , characterized in that the web ( 33 ,  133 ) of the U-shaped body ( 31 ,  131 ) has an open U-shape, the flanges ( 32 - 132 ,  34 - 134 ) of the U-shaped body ( 31 - 131 ) extending from the web ( 33 ,  133 ) on the concave side of said open U-shaped web ( 33 ,  133 ).  
   
   
       4 . Fishplate according to  claim 1 , characterized in that one flange ( 34 - 134 ) of the U-shape of the U-shaped body ( 31 - 131 ) carries the locking lugs ( 35 A . . .  135 A . . . ).  
   
   
       5 . Fishplate according to  claim 1 , characterized in that the locking lugs ( 35 A . . .  135 A . . . ) are perpendicular to the planes of the flanges ( 32 - 132 ,  34 - 134 ) before they are bent over to produce their locking effect.  
   
   
       6 . Fishplate according to  claim 3 , characterized in that the notches ( 32 A . . .  132 A . . .  34 A . . .  134 A . . . ) are perpendicular to the plane bottom of the open U-shape of the web ( 33 ,  133 ).  
   
   
       7 . Fishplate according to  claim 6 , characterized in that the lateral parts of the open U-shape constituting the web ( 33 ) of the body ( 31 ) extend from the flat bottom with an angle between them of the order of 120 degrees.  
   
   
       8 . Fishplate according to  claim 1 , characterized in that each flange ( 132 ,  134 ) comprises four notches ( 132 A . . .  134 A . . . ).  
   
   
       9 . Fishplate according to  claim 8 , characterized in that the distances between two adjacent notches ( 132 A . . .  134 A . . . ) are not equal.  
   
   
       10 . Wire cable tray having two facing portions connected by at least one fishplate, characterized in that said fishplate conforms to  claim 1 .  
   
   
       11 . Wire cable tray according to  claim 10 , characterized in that the two portions of the cable tray are two independent elements assembled end to end.  
   
   
       12 . Wire cable tray according to  claim 10 , characterized in that the two portions of the cable tray are parts of the same cable tray element, one lateral panel of which has been cut, and are connected by a fishplate fitted to said section after shaping the other lateral panel, enabling a bend to be formed in the cable tray.  
   
   
       13 . Cable tray according to  claim 10 , characterized in that the fishplate ( 30 ,  130 ) is mounted by means of its notches on the facing end weft wires ( 12 ,  22 ,  112 ) of the two portions ( 10 ,  20 ,  110 ), the lugs ( 35 A . . .  135 A . . . ) being bent over said flanges ( 15 ,  25 ,  115 ).  
   
   
       14 . Cable tray according to  claim 13 , characterized in that the fishplate ( 30 ,  130 ) is mounted on the weft wires ( 12 ,  22 ,  112 ) from the interior of the cable tray, its web ( 33 ,  133 ) being situated inside the latter.  
   
   
       15 . Cable tray according to  claim 10 , characterized in that the fishplate ( 30 ,  130 ) lies between two warp wires ( 11 ,  21 ,  111 ).  
   
   
       16 . Cable tray according to  claim 15 , characterized in that, ignoring assembly clearances, the width of the web ( 33 ,  133 ) of the U-shaped body of the fishplate ( 30 ,  130 ) is globally equal to the distance between the two warp wires ( 11 ,  21 ,  111 ) between which it lies.  
   
   
       17 . Wire cable tray portion, characterized in that it is equipped with at least one fishplate according to  claim 1 , said fishplate ( 30 ,  130 ) being mounted to pivot about one flange ( 15 ,  25 ,  115 ) of an end weft wire ( 12 ,  22 ,  112 ) and lying inside the portion of the cable tray ( 10 ,  20 ,  110 ) and along its lateral panel ( 14 ,  24 ,  114 ) defined in particular by said flange ( 15 ,  25 ,  115 ).