SLEEPER FASTENING SYSTEM ON A BALLASTLESS TRACK

• US 20200131711A1
• Filed: 03/13/2017
• Published: 04/30/2020
• Est. Priority Date: 03/13/2017
• Status: Abandoned Application

• Current Assignee: Acciona Construccion SA (Acciona SA)
• Original Assignee: Acciona Construccion SA (Acciona SA)
• Inventors: ROJAS, Faiver Botello, OLIVE, Jerome, VIAN, David, CARRASCO, Carlos Hermosilla, QUINTANA, Amador, MORALES GAMIZ, Francisco Javier
• Application Number:
  US16/494,068
• Publication Number:
  US 20200131711A1
• Time in Patent Office: Days
• CPC Class Codes: E01B 1/007 with interlocking means to withstand horizontal forces
• CPC Class Codes: E01B 3/40 Slabs; Blocks; Pot sleepers; Fastening tie-rods to them

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.

Claims

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.