Sleeper fastening system on a ballastless track

Abstract

The invention relates to a system for securing sleepers in a ballastless track formed by a base plate, sleepers and an interposed elastic intermediate plate, wherein the sleeper body comprises at least one through-hole, and the base plate comprises the corresponding blind holes in which a securing pin is embedded, to which a guide rod that can be inserted in the through-hole is joined, via which the sleeper is secured to the base plate in such a way that no additional pretensioning is added to that caused by the positioning of the sleeper thereon, and only a certain amount of vertical movement is permitted, forming a disassemblable assembly of the securing elements and the sleepers.

1 . A fixing device from a sleeper to a base plate of a slab track where an inter-plate is located between the sleeper body and the base plate wherein the sleeper body comprising at least one through hole; the base plate comprising at least one blind hole in which an anchor bolt is embedded; the fixing device which can be inserted into the through-hole in order to be immobilized in a detachable way by the anchor bolt in the slab track installation position; without subjecting the inter-plate to an additional pretension to which the inter-plate is subjected when the sleeper body is placed on the base plate. 
     
     
         2 . Device in accordance with  claim 1 , wherein the fixing device comprising a guiding rod for positioning the sleeper body on the base plate in the slab track installation position; and an immobilising end which works mechanically with the anchor bolt for fixing the sleeper body in the slab track installation position. 
     
     
         3 . Device according to  claim 1 , wherein the fixing device comprising a head which can be inserted into the through hole without protruding from the upper plane of the sleeper body in the slab track installation position. 
     
     
         4 . Device according to  claim 2 , wherein the guiding rod can be inserted into a sleeve that internally lines the through hole in the slab track installation position. 
     
     
         5 . Device according to  claim 2 , wherein the immobilizing end is threadable in an internal thread of the anchor bolt in the slab track installation position. 
     
     
         6 . A slab track of rails for railways, wherein the slab track comprises at least a portion of base plate, an inter-plate and at least one sleeper body installed in a configuration in overlapping layers fixed in position of installation of the slab track by means of a fixing device according to  claim 1 . 
     
     
         7 . A slab track of rails for railways, wherein the slab track comprises at least a portion of base plate, an inter-plate and at least one sleeper body installed in a configuration in overlapping layers fixed in position of installation of the slab track by means of a fixing device according to  claim 2 . 
     
     
         8 . A slab track of rails for railways, wherein the slab track comprises at least a portion of base plate, an inter-plate and at least one sleeper body installed in a configuration in overlapping layers fixed in position of installation of the slab track by means of a fixing device according to  claim 3 . 
     
     
         9 . A slab track of rails for railways, wherein the slab track comprises at least a portion of base plate, an inter-plate and at least one sleeper body installed in a configuration in overlapping layers fixed in position of installation of the slab track by means of a fixing device according to  claim 4 . 
     
     
         10 . A slab track of rails for railways, wherein the slab track comprises at least a portion of base plate, an inter-plate and at least one sleeper body installed in a configuration in overlapping layers fixed in position of installation of the slab track by means of a fixing device according to  claim 5 .