ES2358495B1 - RAILWAY RAILWAY MATERIAL, PREFABRICATED RAILWAY SUPPORT TACO THAT INCORPORATES SUCH MATERIAL, RAILWAY ENCHARGED IN SUCH MATERIAL, AND SAID PROCEDURE OF SUCH TACO AND SAID RAIL. - Google Patents

Abstract

Rail rail buffer material, prefabricated rail rail support block incorporating said material, rail jacketed in said material, and method of manufacturing said rail and said rail. # Rail rail buffer material comprising a solid mixture of a granulate from of recycling of tires out of use, and 5% -45 of a resin applied on the weight of the granulate. Prefabricated rail support rail (1) comprising a solid die (2), fixing means (3) of a rail rail (4) to said die (2), and a base (5) attached to the die ( 2), and constituted in the described buffer material. Laminated rail (40) comprising a shirt (41) constituted in the described damping material, and a rail (4a) embedded in the shirt (41), the shirt (41) being attached to the rail (4a) and covering its entire perimeter with the exception of its upper rolling face (4ab).

Description

Rail rail buffer material, prefabricated rail rail support block incorporating said material, rail jacketed in said material, and method of making said block and said rail.

Object of the invention

The main object of the present invention comprises a rail rail buffer material, a prefabricated rail rail support block incorporating said buffer material, a rail encased in said buffer material, and the method of making said block and said rail, all This is specially designed for the cushioned support of railway tracks.

Background of the invention

At present, the use of granulated remains from the recycling of tires for support and damping of rail tracks is known.

For example, JP2002326225 discloses the use of rubber chips obtained from crushing out-of-use tires, as a filler element between the rails in the construction of tracks, in order to provide elasticity to the rails.

The Korean patent document KR20020050095 describes a resin and gravel-based product that uses out-of-use tires and is used in the construction of a reduced noise and vibration railway. This document includes the combined use of recycled resin and tires together with the gravel without definite proportions.

The Korean patent document KR20040017012 refers to a crossbeam composed of a steel block on which the rails rest and an injected layer of recycled tire dust, which supports the whole of the rails and the steel block.

European Patent Application Publication EP1197598 discloses a shock absorber located between the rails of a railway track, in intermediate positions between the sleepers on which the rails rest. It is described in a preferred embodiment, specifically in its claim 7, the manufacture of the shock absorber in elastic materials insulating vibration, such as recycled rubber granules embedded in a polyurethane matrix.

Spanish utility model application publication ES1065079 describes a rail support block assembly, consisting of a prefabricated elastic tray and a block. The assembly is mounted on the substructure of a railway track. The block consists of an upper part, a bottom and a peripheral wall, and on said block at least one rail is fastened. The elastic tray is formed in turn by two embedded trays between which an elastomeric elastic structure with cork content called Corkelast is arranged. The external tray is prefabricated of plastic or concrete and has anchors for coupling to a concrete slab. However, the use of the prefabricated elastic tray, based on a sandwich of two other trays with a filling of elastomeric material, presents some drawbacks, among which there is a relative lack of lightness and no use of waste materials.

Description of the invention

The damping material of the invention has an optimal constitution to be used in the fastening and damping of rail rails, has considerable lightness and presents environmental advantages since it uses and gives advantage to the granulated remainder - hereinafter simply graded in this document - from Tire recycling

According to the invention, the damping material comprises a solid mixture of the granulate from recycling of out-of-use tires, and 5% -45% of a binder resin applied to the weight of the granulate.

The resin can be polyurethane or epoxy.

During the preparation of the resins it may be necessary to add certain amounts of water, necessarily also in the case of polyurethane resins (water acts as a catalyst). In this case, an amount of water equivalent to 2% based on the total weight of the resin is preferably used.

In general, by adjusting the granulometry of the granulate as well as the nature and proportions of the resins employed, a greater or lesser rigidity can be provided to the material of the invention, varying its characteristics of noise and vibration damping: a greater rigidity produces a lower noise and vibration damping, and vice versa.

Another object of the invention refers to a prefabricated block that is used for the assembly of the plate track, that is, a track that sits on a concrete slab instead of the traditional ballast. This block incorporates parts of the material of the invention, so it has noise and vibration reducing characteristics. It also has easy handling, and reduced weight and costs. This block is specially designed for rail support for use in railways, subways or trams.

The prefabricated block of the invention comprises a solid die, usually of concrete; means of fixing the rail or rails to said die; and a base attached to the die, constituted in the buffer material of the invention.

The fixing means comprise any type of fixation, such as Vossloh type fixations. Additionally, protruding reinforcement can be embedded in the base that cooperates in the fixation of the prefabricated block to the plate or slab, if it is manufactured after the installation of the prefabricated block.

To achieve the union between the base and the die, the method of manufacturing the block comprises kneading a mixture of granulate and resin corresponding to the damping material, pouring said mixture into a mold before hardening, previously arranging the reinforcements if necessary, and then insert the die, unmolding once the mixture of the buffer material has hardened.

Another object of the present invention is a rail encased in the damping material of the invention. It is also intended for the mounting of track in plate, and is specially designed to support rail rails that can be used in railways, subways or trams. It has the advantage that it is embedded and flush with the plate, which allows the circulation of other vehicles on the road.

The jacketed lane of the invention effectively dampens the noise and vibrations produced by the passage of the convoys, has reduced costs, and presents all the advantages inherent to the plate track system, achieving a longer lane duration, an absence of mechanical fixations and avoid having to make realignments in the lane. It also has a very high electrical resistance and is completely waterproof.

The jacketed rail comprises a monolithic assembly formed by a jacket made of the damping material of the invention and a rail embedded and adhered to said shirt so that its contour is completely covered except for its upper rolling face.

It should be clarified that in this document the denomination “jacketed rail” is used to designate the whole of the rail plus the sleeve of cushioning material, and the denomination “rail” to designate the rail itself.

The process for making the jacketed rail of the invention comprises kneading the mixture of granulate and resin, performing a basic laying in a mold by means of a first quantity of the mixture, placing the rail on this basic laying, and filling. of the side parts of the mold, with top flush with the rail, unmolding after hardening. According to this procedure it is achieved that the sleeve of the cushioning material is perfectly adhered to the rail and that it is in one piece.

The shirt preferably has prismatic configuration lying down that offers a flat bottom support face. In addition, to improve your grip on the concrete or asphalt slab, it is planned that you can implement reliefs in its contour.

Description of the drawings

To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:

Figure 1.- Shows a sectional view of the block of the invention.

Figure 2.- Shows a perspective view of the block of the invention

Figure 3.- Shows a sectional view of the jacketed rail of the invention.

Figure 4.- Shows a perspective view of the jacketed rail of the invention installed in a plate track assembly.

Preferred Embodiment of the Invention

The rail rail buffer material of the invention comprises a solid mixture formed by the granulate from recycling of out-of-use tires, and 5% -45% of a binder resin applied to the weight of the granulate.

In addition, a constant amount of water equivalent to 2% by weight of the total resin weight is estimated in all mixtures used for resins.

The resin can be polyurethane or epoxy.

In the case of polyurethane resin, the mixing can be carried out at room temperature, hardening in an approximate period of 24 hours.

The use of the tire granulate can be carried out by means of mixtures of different granulometries, and in particular of coarse granulometry or G (size of the granules between 2 and 5 mm), medium or M (size between 0.5 and 2 mm), and fi noF (size less than 1 mm).

An application of the invention designed for heavy rail vehicles, shown in Figures 1 and 2, comprises a prefabricated block (1) incorporating the described damping material. The cue (1) comprises a die

(2) solid, usually concrete, fixing means (3) of a rail (4) rail to said solid die (2), and a base (5) constituted in the damping material of the invention and attached to the die ( 2). The fixing means (3) in this example comprise fixations with bent plates (30), seat plates (31) and screws (32). In addition, in a preferred variant of the invention the base (5) has an extension (5a), as seen in Figure 1, which is overlapping the lower end perimeter part of the die (2) cooperating in its fixation to it.

The block (1) is specially designed for mounting plate tracks, so the provision of protruding reinforcements (50), typically integrated in the base (5), which, when embedded in the slab or plate, is provided , not represented in these fi gures1 and 2, effectively effect the block (1) thereto.

A very preferred variant of the damping material of the invention for the block (1) of the invention comprises using for the base (5) 35-45% of polyurethane resin applied on the weight of the granulate, said granulate being coarse grained or Type G. In the lateral extensions (5a) of the block, a mixture consisting of 35-45% of polyurethane resin applied on the weight of the granulate and a granulate from recycling of medium-sized or M-type granulometry tires and fin or type F.

Another preferred variant of the damping material of the invention comprises using a mixture of 5-15% epoxy resin applied on the weight of the granulate for the damping material, and a recycling granulate of granulometry type G tires. In the extensions (5a ) On the side of the block, a mixture consisting of 15-25% of epoxy resin applied on the weight of the granulate and a granulate from recycling of medium-grain or M-type and fine-type F-type tires are used.

The method of manufacturing the block (1) comprises: kneading a mixture of granulate and resin corresponding to the buffer material, pouring said mixture into a mold before it is hardened, and then inserting the die, unmolding once the mixture of the buffer material has hardened. Additionally, reinforcements (50) can be arranged in the mold prior to pouring the mixture.

In any case, the buffer material is perfectly adhered to the die (2), when the mixture of granules and resin hardens in contact with it.

In accordance with another application of the invention designed for railways, trams or light meters (Figures 3 to 5), a jacketed rail (40) has been designed in the damping material of the invention. The jacketed lane

(40) comprises a jacket (41) constituted on the basis of said damping material, and a rail (4a) embedded in said jacket (41). The jacket (41) covers and adheres to the entire perimeter of the lane (4a) with the exception of its upper rolling face (4ab), and once mounted it is embedded in the plate or slab (60) to allow the circulation of vehicles (see Figure 5). The lane with the reference (4a) is designated in Figures 3 to 5 to differentiate it from the lane (4) usable in the block (1) and shown in Figures 1 and 2, since they have different sections.

The shirt (41) ideally adopts prismatic form lying down, and it is envisaged that its contour incorporates reliefs that improve its fixation to the slab (60). These reliefs preferably take the form of lower side heels (43), which also increases the lower bearing surface of the jacketed rail (40).

A variant of the jacketed rail (40) is shown in Figure 3. It comprises using 2535% polyurethane resin applied on the weight of the granulate for the jacket (41) with a granulate based on a mixture of types G and M in approximate ideal proportion of 50% each.

Another variant of the embedded rail (40) is shown in Figure 3. It comprises using 25-35% of polyurethane resin applied on the weight of the granulate with a granulate comprising a type M mixture for the jacket (41).

The process for making the jacketed rail (40) comprises: kneading a mixture of granulate and resin; make a basic laying in a mold using a first quantity of the mixture; place the rail (4a) on this base line; fill the side parts of the mold with the mixture, and top it up with the rail (4a); Unmold after hardening.

In any case, the jacket (41) is wrapped around the side and bottom faces of the rail (4a) and perfectly adhered to it, by hardening the resin and granulate mixture in contact with the rail (4a).

Claims (18)

one.

Railway rail buffer material characterized in that it comprises a solid mixture of a granulate from recycling of out-of-use tires, and 5% -45 of a resin applied to the weight of the granulate.

2.

Railway rail buffer material according to claim 1 characterized in that the resin is selected from:

polyurethane resin, and epoxy resin 3. Rail rail damping material according to claims 1 or 2 characterized in that the granulated moiety comprises coarse granulometry, or medium granulometry, or fine granulometry, or mixtures of the foregoing. 4. Prefabricated rail rail support block (1) characterized in that it comprises: a solid (2) dice, fixing means (3) of a rail (4) rail to said die (2), and a base (5) attached to the die (2), and constituted in the damping material described in any of claims 1 to 3.

5.

Prefabricated rail support rail (1) according to claim 4 characterized in that the base (5) has an extension (5a) that is overlapping the lower end perimeter part of the die (2).

6.

Prefabricated rail support block (1) according to claims 4 or 5 characterized in that it comprises protruding reinforcements (50) integrated in the base (5) in order to cooperate in fixing the block (1).

7.

Prefabricated rail support rail (1) according to claims 4.5 or 6, characterized in that the buffer material for the base (5) comprises 35-45% polyurethane resin and a coarse granulometry granulate; while the lateral extensions (5a) comprise a mixture formed by 35-45% of polyurethane resin applied on the weight of the granulate, with a granulate from recycling of medium and fine granulometry tires.

8.

Prefabricated rail support rail (1) according to claims 4.5 or 6, characterized in that the buffer material for the base (5) comprises 5-15% of epoxy resin applied on the weight of the granulate and a coarse granulometry granulate ;, while that the lateral extensions (5a) comprise a mixture formed by 15-25% of epoxy resin applied on the weight of the granulate, with a granulate from recycling of medium and fine granulometry tires.

9. Jacketed rail (40) characterized in that it comprises:

-

a jacket (41) constituted in the cushion material described in any one of claims 1 to 4, and

-

a rail (4a) embedded in the shirt (41),

the shirt (41) being attached to the rail (4a) and covering its entire perimeter except for its upper rolling face (4ab).

10.

Laminated rail (40) according to claim 9 characterized in that the shirt (41) adopts prismatic shape lying down.

eleven.

Laminated rail (40) according to claims 9 or 10 characterized in that the jacket (41) incorporates reliefs in its contour.

12.

Laminated rail (40) according to claim 11 characterized in that the reliefs of the shirt (41) take the form of lower side heels (43).

13.

Laminated rail (40) according to any of claims 9 to 12, characterized in that the jacket cushion material (41) comprises 25-35% polyurethane resin applied on the weight of the granulate, with a granulate based on a mixture of coarse and medium grain size in an approximate proportion of 50%.

14.

Laminated rail (40) according to any of claims 9 to 12, characterized in that the jacket cushion material (41) comprises 25-35% polyurethane resin applied on the weight of the granulate, with a granulate based on a mixture of medium grain size.

fifteen.

Process for making the prefabricated block (1) of any of claims 4 to 8, characterized in that it comprises: kneading a mixture of granulate and resin corresponding to the buffer material; pour said mixture into a mold before hardening; insert the dice (2); unmold after hardening the mixture of the buffer material.

16.

Process for making the prefabricated block (1) of any one of claims 4 to 8, according to claim 15, characterized in that it additionally comprises having reinforcements (50) inside the mold prior to pouring the mixture.

17.

Process for making the jacketed rail (40) of any of claims 9 to 14 characterized in that it comprises: kneading a mixture of granulate and resin; make a basic laying in a mold using a first quantity of the mixture; place the rail (4a) on this base line; fill the side parts of the mold with the mixture, and top it up with the rail (4a); Unmold after hardening.

SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 200801678 SPAIN Date of submission of the application: 04.06.2008 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: E01B19 / 00 (2006.01) RELEVANT DOCUMENTS

Category

Documents cited Claims Affected

Y

WO 2006032684 A1 (FERONIA S A et al.) 30.03.2006, description; Figures 1.8. 1-3,9-12

X

17

Y

DE 4004208 A1 (CHEM FAB BIEBRICH VORM SECK &) 14.08.1991, description; figure 2. 1-3,9-12

Y

EP 0603927 A2 (COOPSETTE SCRL) 29.06.1994, description; figures 1.3. 4-6

X

15-16

Y

EP 0560580 A2 (MURRAY KEVIN) 15.09.1993, description. 4-6

X

1-3

TO

US 4871809 A (SZARKA PAUL J) 03.10.1989, description. 1-3

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 29.03.2011

Examiner J. Moreno Rodriguez Page 1/5

REPORT OF THE STATE OF THE TECHNIQUE Minimum documentation searched (classification system followed by classification symbols) E01B Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENES, EPODOC, WPI  WRITTEN OPINION Date of Written Opinion: 29.03.2011 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims 1-17 IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims 7-8,13-14 1-6,9-12,15-17 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published.  WRITTEN OPINION 1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

WO 2006032684 A1 (FERONIA S A et al.) 03.30.2006

D02

EP 0603927 A2 (COOPSETTE SCRL) 06.29.1994

D03

EP 0560580 A2 (MURRAY KEVIN) 15.09.1993

D04

DE 4004208 A1 (CHEM FAB BIEBRICH VORM SECK &) 08/14/1991

D05

US 4871809 A (SZARKA PAUL J) 03.10.1989

2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement The object of the invention set forth in independent claim 1 is a railroad buffer material comprising a solid mixture of a granulate from recycling of out-of-use tires, and 5% -45% of a resin applied on the weight of the granulated. Document D01 discloses a method to cover the parts of a rail that are not in contact with the wheels of the vehicle that it travels with a jacket composed of a solid mixture of rubber granules, from tire recycling, joined by a polyurethane resin The granulated residue comprises medium and coarse granulometry (between 1 mm and 3 mm) (description and figures 1-8). The difference between the material disclosed in claim 1 and that disclosed in document D01 is that the percentage of resin applied in the solid mixture is not disclosed. The technical effect associated with this difference is that the proportion of resin applied is determinant in some physical characteristics of the mixture, such as the damping capacity of the material. However, this difference as well as the associated technical effect is found in document D04. This document discloses a vibration damping system for rails based on a material composed of rubber fragments joined by a polyurethane matrix, in which the polyurethane is in a proportion of 25% to 48% by weight in relation to the rubber fragments that constitute the material (description and figure 2). It would be obvious to one skilled in the art to apply the percentages of polyurethane and rubber disclosed in D04 to obtain the solid mixture disclosed in D01, it being in view of said combination that claims 1-3 lack inventive activity. Document D03 discloses a rail support cross member composed of a material formed from rubber fragments from the recycling of out-of-use tires joined by an epoxy resin in a proportion of one part of resin for every four to eight parts of fragments of rubber by weight (12% to 25% by weight), the rubber fragments being in a size range of less than 6 mm (less than 1/4 inch) (description). Based on this document, claims 1-3 lack inventive activity. The object of the invention set forth in independent claim 4 is a prefabricated rail rail support block comprising a solid die, means for fixing a rail rail to said die and a base attached to the die and constituted in the damping material. Document D02 discloses a prefabricated rail rail block (12) comprising a solid concrete die (1), fixing means (11) of the rail rail to said die (1) and a base (4,5 ) attached to the die and made of flexible material such as rubber. The base has an extension (5b) that is overlapping the lower extreme perimeter part of the solid die (1) (description and figures 1-3). The inclusion of reinforcements in the base to improve the fixation of the block (1) in the ground, is a technique widely known in the state of the art and lacks inventive activity. The difference with the object of the invention disclosed in claim 4 is that the base is not constituted by the damping material disclosed in claim 1. The technical effect associated with this difference is that the damping effect produced by the base of the block is not the same as that obtained with the mixture disclosed in claim 1. However, this technical effect is included in document D03 mentioned above, in which this mixture is used to provide damping capacity to a crossbeam that supports A railroad rail. For a person skilled in the art, the combination of documents D02 and D03 would be evident, so that the base of the block disclosed in D02 would be built on the material disclosed in D03, thus achieving the same damping capacity as this. In view of this combination, claims 4-6 lack inventive activity.  WRITTEN OPINION The object of the invention set forth in independent claim 9 is a jacketed rail comprising a sleeve constituted by the damping material, a rail embedded in the sleeve adhered to the rail and covering its entire perimeter except for its upper rolling face. Document D01 discloses a jacketed lane (3) comprising a jacket (7 and 8 in figure 5) consisting of a solid mixture of rubber granules, from tire recycling, joined by a polyurethane resin, a rail (3) embedded in the shirt (7 and 8) attached to the rail and covering its entire perimeter except for its upper tread. The shirt adopts a prismatic shape lying down, with lower and middle reliefs (20 and 21) that take the form of side heels. The difference between the jacketed lane disclosed in D01 and the one set forth in claim 9 is that the jacket is not constituted with the percentages of rubber and resin that define the sleeve of the rail collected in claim 9. This difference, as well as the effect associated technician, already indicated above in relation to the inventive activity of claim 1 are set out in document D04. Therefore, for one skilled in the art and in view of this combination, claims 9-12 lack inventive activity. The object of the invention set forth in independent claim 15 is a method of manufacturing the prefabricated block comprising the steps of kneading a mixture of granulate and resin corresponding to the buffer material, pouring said mixture into a mold before hardening, inserting the die and unmold after hardening the mixture of the buffer material. The object of the invention set forth in independent claim 17 is a process for making jacketed rail comprising the steps of kneading a mixture of granulate and resin; make a basic laying in a mold by means of a first quantity of mixture, place the rail on this basic laying, fill the side parts of the mold, and make up to the top with the rail. These turn out to be widely disseminated methods in the processes of conformation starting from plastic substances or in a plastic state, lacking a new technical effect. Therefore, claims 15-16 are devoid of inventive activity in view of document D02 and claim 17 is devoid of inventive activity in view of document D01.