Restoration insert for a railway rail anchor to a wooden sleeper

Abstract

The insert ( 1 ) includes:—two primary lateral parts ( 2 ), sized to extend, after placement of the insert ( 1 ) in the hole ( 101 ) of the sleeper ( 100 ), over a large portion of the height of this hole ( 101 ), alongside each other; and—a central part ( 3 ) whereto are connected the two primary lateral parts ( 2 ), this central part ( 3 ) being disposed, after placement of the insert ( 1 ) in the hole ( 101 ), substantially perpendicular to the primary lateral parts ( 2 ) and being sized to cover a large portion of the cross-section of the hole ( 101 ).

1 . Restoration insert ( 1 ) for a railway rail anchor to a wooden sleeper ( 100 ), characterized in that it comprises:
 two primary lateral parts ( 2 ), sized to extend, after placement of the insert ( 1 ) in the hole ( 101 ) of the sleeper ( 100 ), over a large portion of the height of this hole ( 101 ), alongside each other; and   a central part ( 3 ) whereto are connected the two primary lateral parts ( 2 ), this central part ( 3 ) being disposed, after placement of the insert ( 1 ) in the hole ( 101 ), substantially perpendicular to said primary lateral parts ( 2 ) and being sized to cover a large portion of the cross-section of the hole ( 101 ).   
   
   
       2 . Insert ( 1 ) according to  claim 1 , characterized in that it is made of a material able to be bent and, before use, its two primary lateral parts ( 2 ) are located on either side of the central part ( 3 ), on the extension of each other. 
   
   
       3 . Insert ( 1 ) according to  claim 1 , characterized in that the primary lateral parts ( 2 ) are connected to the central part ( 3 ) by flexible zones, in particular, by film hinges ( 4 ). 
   
   
       4 . Insert ( 1 ) according to  claim 1 , characterized in that the primary lateral parts ( 2 ) are located on two sides opposite said central part ( 3 ). 
   
   
       5 . Insert ( 1 ) according to  claim 1 , characterized in that the primary lateral parts ( 2 ) have, at their portions connected to the central part ( 3 ), widths which decrease as they approach this central part ( 3 ). 
   
   
       6 . Insert ( 1 ) according to  claim 1  characterized in that each primary lateral part ( 2 ) is in the shape of a longitudinal tube portion, meaning having a concave surface ( 2   a ) on one side and a convex surface ( 2   b ) on the opposite side, the concave surfaces ( 2   a ) of the two primary lateral parts ( 2 ), after placement of the insert ( 1 ), being turned toward each other. 
   
   
       7 . Insert ( 1 ) according to  claim 1 , characterized in that each primary lateral part ( 2 ) comprises through holes ( 5 ), which put its surface ( 2   a ) intended to be turned toward the inside of the hole ( 101 ) in communication with its surface ( 2 b) intended to be against the sleeper ( 100 ). 
   
   
       8 . Insert ( 1 ) according to  claim 1  characterized in that at least one primary lateral part ( 2 ) comprises substantially transverse and/or longitudinal ribs ( 6 ,  7 ), protruding from its surface ( 2   b ) intended to bear against the sleeper ( 100 ), and/or internal grooves ( 8 ) developed from its surface ( 2   a ) intended to face the sleeper screw side, these internal grooves ( 8 ) being disposed so as to correspond substantially to the thread of the sleeper screw. 
   
   
       9 . Insert ( 1 ) according to  claim 1 , characterized in that at least one primary lateral part ( 2 ) comprises a strip ( 9 ) extending its end opposite the end connected to said central part ( 3 ), having a reduced thickness, for example a thickness of approximately 1 mm. 
   
   
       10 . Insert ( 1 ) according to  claim 9 , characterized in that the surface of the strip ( 9 ) intended to be located toward the interior of the hole ( 101 ) after placement of an insert ( 1 ) is found in the extension of the surface ( 2 a) of the primary lateral part ( 2 ) comprising this strip ( 9 ) intended to be located toward the interior of the hole ( 101 ) after placement of the insert ( 1 ).