Block boot for railway track systems

Abstract

A block boot (1) that has a rectangular ground plan, a bottom (5), and four side walls (2, 3). On the interior of the side walls (2, 3), ribs (10, 15) extending in parallel to the bottom are arranged. At least one of these ribs (10, 15) tapers from the respective side wall (2, 3) toward the interior of the block boot to a free end having a vertex line (24, 25). This block boot is simple to manufacture and offers improved properties with regard to static and dynamic rigidity in operation.

1 . A block boot for railway track systems, intended to receive a sleeper block, the block boot having a rectangular ground plan with a bottom and four side walls, and ribs that extend in parallel to the bottom being arranged on the inside of the side walls, wherein at least one of the ribs tapers from the respective side wall toward the interior of the block boot to a free end having a single vertex line. 
     
     
         2 . The block boot according to  claim 1 , wherein seen in cross-section, the free end of the rib is approximately semicircular. 
     
     
         3 . The block boot according to  claim 1 , wherein seen in cross-section, the free end of the rib is approximately triangular. 
     
     
         4 . The block boot according to  claim 3 , wherein the triangular shape comprises a shorter flank and a longer flank. 
     
     
         5 . The block boot according to  claim 2 , wherein the rib is arranged on the longer side wall. 
     
     
         6 . The block boot according to  claim 3 , wherein the rib is arranged on the shorter side wall. 
     
     
         7 . The block boot according to  claim 1 , wherein a plurality of parallelly extending ribs are designed identically. 
     
     
         8 . The block boot according to  claim 7 , wherein the ribs are equally spaced. 
     
     
         9 . The block boot according to  claim 1 , wherein at their upper ends, the side walls have a surrounding rim which, seen in cross-section, ends in an upper apex. 
     
     
         10 . The block boot according to  claim 1 , wherein in at least one of the side walls, a drainage opening is arranged directly above the bottom. 
     
     
         11 . The block boot according to  claim 4 , wherein the rib is arranged on the shorter side wall.