EP3464726A1 - Under tie pad - Google Patents
Under tie padInfo
- Publication number
- EP3464726A1 EP3464726A1 EP17720497.1A EP17720497A EP3464726A1 EP 3464726 A1 EP3464726 A1 EP 3464726A1 EP 17720497 A EP17720497 A EP 17720497A EP 3464726 A1 EP3464726 A1 EP 3464726A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- sleeper
- profile element
- profile
- railway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
- E01B3/46—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from different materials
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/01—Elastic layers other than rail-pads, e.g. sleeper-shoes, bituconcrete
Definitions
- the present invention relates to a threshold sheeting, in particular for a railway sleepers carried in a ballast bed, a method for producing a Schwellenfersohlung and a railway sleepers made of concrete.
- US 7,278,588 B2 discloses a sleeper pad.
- this threshold filling also comprises web-like projections projecting vertically from the basic body, which are configured roof-shaped or mushroom-shaped on their front side.
- DE 10 2004 01 1 610 A1 likewise discloses a planar basic body with a surface modification consisting of dimples or rib-shaped elevations, at the end of which a mushroom-shaped or bent end is arranged.
- AT 506 529 B1 discloses a method for assembling a first layer and a second layer. It is provided that the first and the second layer are respectively provided and then joined together by a roller, that is, the first layer is arranged and fixed on the second layer.
- a sleeper pad also called underside pad (USP) is an elastic layer arranged on the underside of railway sleepers, in particular concrete sleepers.
- the (elastic) sleeper padding allows adaptation to the ballast bed, resulting in increased wing area and reduced tion of the gravel or the gravel grains leads.
- the compressive stress of the ballast especially in the contact area between the threshold and the ballast, can be reduced because the contact area is increased insofar as it allows the ballast grains to penetrate into the sleeper bottoming.
- threshold solders known in the art are adhered to the railway sleeper. The disadvantage here is the additional effort in sleeper and low adhesion.
- threshold solders with adhesive systems for example with undercuts, holes and intermediate spaces, etc., are known, which are pressed into the still soft concrete (the railway sleeper). After curing, a positive connection is formed with the threshold insole.
- Such threshold solders are produced by casting or by extrusion, and the abovementioned adhesive systems must be elaborately formed, which is expensive and time-consuming.
- a Schwellenloyohlung in particular for a worn in the ballast bed sill, a method for producing a threshold insole and a railway sleepers made of concrete, to which a Schwellenleohlung is attached, which eliminate the aforementioned disadvantages.
- a threshold insole in particular for a railway sleeper supported in a ballast bed, comprises a first layer and a second layer, wherein the first layer is disposed on the second layer, and wherein by the first layer an adhesive system for mounting / attachment to a Rail tie is formed.
- the second layer is the layer which, when installed, is oriented towards the ballast bed.
- the first layer is accordingly oriented towards the concrete sleeper.
- the adhesive system is characterized by the fact that it can form a positive connection with the material of the railway sleeper, in particular with the concrete.
- the first layer is attached to the second layer, in particular form and / or material and / or non-positive.
- the fastening is preferably carried out by a pressing and / or gluing method. Typical pressures are in a range of about 0.01 to 500 bar.
- the abovementioned processes can also be carried out under the action of temperature, with typical temperatures preferably being in a range from about 20 to 300.degree. C., preferably from 80 to 280.degree.
- the first and second layers not only the connection of the first and second layer but also the vulcanization of the first and / or the second layer take place, which allows a further degree of freedom in the manufacture of the Schwellenloyohlung , It should be noted at this point that the two layers can consist of the same material or of different materials.
- the first layer comprises at least one profile element, in particular a strip, or the first layer is formed as a profile element.
- This embodiment has proved to be particularly advantageous, since such a profile element can be very effectively prepared for example by means of an extrusion or injection molding.
- a plurality of profile elements is provided, wherein the profile elements are expediently arranged substantially parallel to one another. This multiplicity of profile elements forms suitable moderately the first layer and in this way advantageously forms the adhesive system for the arrangement or attachment of the threshold insole at the railway sleeper.
- the threshold soling is positioned at the railway sleeper in such a way that the profiled elements extend substantially transversely to a longitudinal direction of the railway sleeper, in other words in the track direction.
- a positioning transversely to the track direction (along the railway sleeper) is possible, or else an "oblique" positioning, for example in a range of about 30 to 60 °, in particular about 45 °, with respect to the track direction.
- the profile element has an arrangement area and an adhesion area, wherein the adhesion area is designed such that it extends in particular substantially perpendicularly away from the second layer, in particular at an angle between 80 ° and 100 °. But it is also possible to orient the adhesive area at a smaller or larger angle to the second layer.
- the arrangement region is provided in particular for arranging or fastening the profile element to the second layer.
- the arrangement region expediently comprises an arrangement surface or a contact surface, which then bears against the second layer.
- the main function of the adhesive area is to provide a geometry over which ultimately the, in particular form-fitting, connection with the concrete sleeper is made possible.
- the adhesion region advantageously extends substantially perpendicularly away from the second layer or from the arrangement region. In cross section, such a profile element essentially has the shape of a T-beam.
- a ratio of a height of the profile element to a width of the arrangement region is about 1 to 3, preferably about 1, 2 to 1, 5. It has been found that such a relationship creates an optimum compromise between the stability of the connection between the first and second layers and the bonding strength between the first layer and the concrete sleeper.
- a thickness / wall thickness of the adhesion region is in preferred embodiments about 1 to 5 mm, more preferably about 1, 5 to 3 mm. The same applies to a thickness / wall thickness of the arrangement area.
- the arrangement region is also not formed "wider" than the adhesion region, which means that the profile element has the shape of an "1" carrier in cross-section
- a thickness of the adhesion region or a width of the arrangement region is in these embodiments, in order to allow sufficient adhesion, in a range of about 2 to 15 mm, in particular from about 5 to 10 mm.
- profile elements are arranged over a length of 10 cm, preferably about 10 to 17, the measuring direction being transverse to the longitudinal direction of the profile elements.
- a distance of the profile elements in a range of about 3 to 20 mm, preferably about 5 to 12 mm.
- the profile elements preferably have a constant cross section along their longitudinal direction.
- the profile elements extend substantially straight along their longitudinal direction.
- a wave or zigzag shape may be advantageous to increase the surface area of the adhesion as well as the placement area.
- the adhesion region extends substantially perpendicularly away from the arrangement region or from the second layer.
- the adhesive area is thus essentially perpendicular to the concrete sleeper.
- the adhesion region can extend at an angle not equal to 90 °, for example in a range of approximately 20 to 70 °, in particular in a range of approximately 30 to 45 °, relative to the arrangement region or the concrete sleeper.
- This geometry can be formed with advantage, solely by the positioning / inclination of the profile elements, undercuts or recesses for the concrete.
- the profile elements can be arranged so that they are all inclined in the same direction, alternatively they can also, for example alternately, be inclined in different directions.
- the adhesive region which has hitherto been described as a substantially straight web, can also have a wave or zigzag shape, perpendicular to the second layer, in order, if appropriate, to influence the adhesion with the concrete.
- a wave or zigzag shape may alternatively or additionally also extend substantially parallel to the second layer.
- the profile element or in particular the adhesion region, at least one recess, preferably a plurality of recesses, which is arranged along the longitudinal direction of the profile element.
- These recesses can take a variety of forms, such as round, insbesondre circular, oval, square, such as square or rectangular, triangular, etc.
- the profile element is closed on the side facing away from the second layer, d. H. an upper side facing away from the second layer forms a continuous contour.
- the profile element is not open in the mounted state on the side facing the concrete sleeper.
- the liquid concrete must first flow around or surround the profile element in order to reach the recess.
- the profile element is formed leiterformig with the recesses.
- transversely extending rungs are provided between two web portions extending in the longitudinal direction. The area between the rungs then preferably form the recess.
- the rungs Due to the ladder-like design, it is advantageously possible for the rungs to be stabilized in their position or alignment with the web region facing away from the second layer. As a result, the profile element is strengthened in an advantageous manner. This proves to be advantageous, for example, when pouring in the liquid concrete, since the likelihood of the profile element being bent over is reduced.
- the distance between two rungs seen in the longitudinal direction is constant.
- Such a profile element can be realized comparatively easily.
- the distances change seen in the longitudinal direction, for example, periodically increase and then decrease again.
- the recess is larger in the longitudinal direction than an extension of the profile element in a direction perpendicular to the longitudinal direction. direction extending transverse direction.
- the expansion of the profile element is 0.2 to 0, 8 times, preferably 0.3 to 0.75 times and particularly preferably 0.45 to 0.65 times as large as the extent of the recess in the longitudinal direction ,
- For the ratio between 0.45 to 0.65 results in a profile element whose top is comparatively narrow compared to the recess. This simplifies the inflow of the liquid concrete into the recesses when connecting the threshold insole to the railway sleeper.
- the second layer comprises a recess.
- the recess has a closed cross section, so that the recess forms a hollow region or cavity.
- the profile element in addition to the recess at its end facing away from the first layer end has a roof-shaped, mushroom-shaped and / or cap-shaped conclusion.
- the at least one recess forms an opening which extends substantially parallel to the second layer, in other words preferably transversely to the adhesion region.
- the adhesion region extends substantially perpendicular to the second layer, the provision of such recesses is particularly recommended in order to provide the required adhesive strength.
- the recesses substantially in the form of squares, with a side length of about 3 to 6 mm, in particular about 4 mm.
- these recesses / squares, with respect to their midpoints or center lines, are preferably arranged at a distance of approximately 5 to 7 mm, particularly preferably approximately 6 mm.
- the first layer and the second layer are formed from plastic.
- the first layer is formed, for example, from a thermoplastic, for example from PE (polyethylene), PE-UHMW (ultra-high molecular weight polyethylene), PP (propylene), PET (polyethylene terephthalate), PPT (polypropylene terephthalate), PA (polyamide), EVA ( Ethylene vinyl acetate), PUR (polyurethane or elastomer granules).
- the first layer may be formed from a solid material or from a foam material.
- the second layer is preferably also made of a thermoplastic, in particular PE (polyethylene), PE-UHMW (ultra-high molecular weight polyethylene), PP (propylene), PET (polyethylene terephthalate), PPT (polypropylene terephthalate), PA (polyamide), EVA (ethylene vinyl acetate), PUR (polyurethane) or an elastomer (NR, SBR, EPDM, CR, NBR, BR) and / or blends of these.
- PE polyethylene
- PE-UHMW ultra-high molecular weight polyethylene
- PP propylene
- PET polyethylene terephthalate
- PPT polypropylene terephthalate
- PA polyamide
- EVA ethylene vinyl acetate
- PUR polyurethane
- the second layer can also be formed from a solid material or from a foam material.
- a layer thickness of the first layer is in a range of about 0.01 to 18 mm, preferably in a range of 0.05 to 15 mm, particularly preferably in a range of about 0.1 to 10 mm.
- a layer thickness of the second layer is preferably in a range of about 0.2 to 30 mm, particularly preferably in a range of about 0.5 to 20 mm.
- the second layer has a hardness, preferably in a range of about 10 ShA to 90 ShD, more preferably in a range of about 20 ShA to 90 ShD.
- the second layer is a rubber which has a hardness range of about 20 ShA to 90 ShD. Both the first and the second layer can be pressed from a rubber granulate. Likewise, they may be produced in a casting process or in an extrusion process.
- the second layer is formed in multiple layers, whereby a targeted modification of their properties is made possible.
- the damping behavior can be influenced in a targeted manner by a multilayer structure.
- the layers may differ, for example, in their thickness or in terms of their material.
- the layers can NEN be glued together, for example. At least one of the layers can also be formed from a metal material.
- the threshold anneal includes a third one
- the layer is a fleece or a fabric made of PE, PP, PA, and / or PET. It can also be formed from metal filaments or from films made of PE, PE-UHMW, PP, and / or PTFE. It can also be formed from metal sheets and / or fabrics / meshes.
- the invention also relates to a method for producing a Schwellbe- sole, comprising a first layer and a second layer, wherein by the first layer, an adhesive system for mounting / attachment to a railway sleeper is formed, wherein the first layer by a plurality of profile elements is formed, comprising the steps:
- the profile elements can take place in such a way that the profile element is cut out or punched out of a plate which has been cast or extruded, for example.
- recesses are punched into the profile element.
- the stamped recess can be used as an adhesive system in the fabricated threshold soling.
- such recesses can also advantageously be used to transport the profile element or the threshold soling, for example by a transporting means engaging in the recess and the profile element or the threshold soling transposed. ported. This proves to be particularly advantageous if the profile element is transported in the longitudinal direction.
- the fastening can be, for example, a pressing, in particular a continuous or discontinuous pressing, of the two layers.
- vulcanization of the first and / or the second layer takes place during or after the pressing.
- the pressing is carried out, for example, at pressures in a range of about 0.01 to 500 bar and at temperatures in a range of about 20 to 300 ° C.
- the first and / or the second layer can be vulcanized. Preference is given to using continuous vulcanization processes under pressure.
- the vulcanization, both of the first and the second layer or, where appropriate, of both layers can also take place after the pressing.
- the layers may also have been vulcanized prior to compression, for example in a continuous or batch press or extrusion process.
- the threshold soling is produced in a continuous pressing process, wherein expediently several, possibly also different, materials / layers can be directly connected to one another.
- the elastomers used may be in the vulcanized and / or unvulcanized state.
- the sleeper padding is easily produced in multiple layers with consistent product quality and constant dimensions. In the case of the conventionally used methods (eg PUR casting), this can only be achieved with great effort. Also advantageous is the production by means of step pressing method.
- An example of a continuous vulcanization process under pressure is the rotary vulcanization process. This makes it possible to continuously produce products with and without reinforcement inserts.
- Another example is the double belt presses. These presses consist of two endless steel bands, which are led around two drums. Pressure and temperature can be varied along the flat belts. Compared with rotary vulcanization processes, double belt presses have the advantage that much higher pressures can be achieved. Compared to cutting presses, it is advantageous that the heating and cooling takes place under constant pressure without having to open the press, in order that there are no transient loads with double heating time.
- the lead-coat method is to be mentioned.
- a raw hose or a raw cable is covered by a lead extruder or a lead press.
- the thickness of the lead layer is between 1 and 3 mm, for example.
- hoses are built on flexible rubber or plastic mandrels.
- the necessary pressure is created by the difference between the thermal expansion coefficients of lead and rubber or plastic.
- the method further comprises the step:
- profile elements expediently extend in the installed state transversely to a longitudinal direction of / of the railway sleeper.
- the method further comprises the step:
- the invention also relates to a concrete railway sleeper to which a sleeper pad is attached, the sleeper pad having a first layer and a second layer, the first layer being on or at the second layer is arranged and wherein by the first layer an adhesive system for arrangement / attachment to the railway sleeper is formed, in particular for positive connection with the concrete of the railway sleeper.
- the sleeper reinforcement is fastened to a lower side of the railway sleeper, the tracks run on top of the railway sleepers.
- the bond strength between the sleeper and the sleeper tie is described, for example, in CEN / TC 256 / SC 1 / WG 16 / SG 4 (Annes E) and in the present case reaches values greater than 0.4 MPa.
- FIG. 2b shows a sectional illustration of a threshold soling, as sketched in FIG
- FIG. 2a a perspective view of the threshold reinforcement known from FIGS. 2a and 2b;
- Figure 3 a schematic view of a method for producing a
- FIG. 1 a shows a sketch of a sectional view of an embodiment of a railway sleeper 1 made of concrete, to which a sleeper reinforcement is attached.
- the threshold soling comprises a first layer 10 and a second layer 20.
- the section is guided along a longitudinal direction L such that an adhesion region 16 which has various recesses 18 can be seen.
- the recesses 18 are substantially square, arcuate and round.
- the concrete of the railway sleeper 1 is shown dotted to illustrate the interaction with the adhesive layer formed by the first layer 10 for placement and attachment to the railway sleeper 1.
- Fig. 1 b is a Schwellenhleohlung in a plan view (from above from the perspective of a railway sleeper) outlined. Visible is a second layer 20 on which a plurality of profile elements 12, substantially parallel to each other and extending along a longitudinal direction L, are arranged. In the installed state, the longitudinal direction L extends substantially transversely to a longitudinal direction of the railway sleeper.
- the two “longitudinal directions" may also lie at an angle other than 90 ° to one another, for example in a region of approximately 45 ° to one another .
- the two longitudinal directions may lie parallel to one another 12, which in preferred embodiments is between 5 and 10 mm, transverse to the longitudinal direction L according to preferred embodiments of the threshold solings per 10 cm unit length 10 to 20 profile elements 12 are arranged.
- adhesion regions 16 of the profile elements 12 can be seen in the plan view illustrated here.
- FIG. 2 a shows a side view of a preferred embodiment of a first layer 10 or of a profile element 12.
- the profiled element 12 comprises an arrangement region 14 and an adhesion region 16 which extends substantially perpendicularly away from the arrangement region 14.
- the recesses 18 have a height h18 and a width b18, respectively, which in the embodiment shown here are each about 4 mm.
- the profile element 12 extends along a longitudinal direction L, wherein the recesses 80 are arranged at a distance a of about 6 mm (with respect to the center thereof).
- a section A-A is shown in FIG. 2b.
- FIG. 2b shows the section A-A marked in FIG. 2a.
- a width / wall thickness b16 of the adhesion region 16 in the embodiment shown here is approximately 2 mm.
- the height h12 of the profiled element is approximately 7.5 mm, the height / wall thickness h14 of the arrangement region 14 is approximately 1.5 mm.
- a width b14 of the arrangement region 14 or a width of the profile element b12 in the illustrated embodiment is approximately 7 mm.
- FIG. 2 c shows a perspective view of the profile element 12 known from FIGS. 2 a and 2 b, which extends along the longitudinal direction L and comprises the arrangement region 14 or the adhesion region 16.
- FIG. 3 shows a sketch of a method for producing a threshold soling.
- Shown is in particular a second layer 20, which is transported via rollers 70, which may optionally be reheated, or adjusted to a desired material thickness.
- the reference numeral 40 denotes a heating zone.
- a corresponding hot air can be arranged.
- the reference numeral 50 designates an arrangement zone in which a first layer 10 comprising a plurality of profile elements 12 is arranged on the second layer 20. The arrangement is effected such that a longitudinal direction of the profile elements 12 extends substantially transversely to a transport direction T. Subsequently, then the attachment of the first layer 10 and the second layer 20 together. With the reference numeral 60, a separation zone is outlined.
- the threshold soling can here be cut to the desired level, for example via a stamping process.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
- Road Paving Structures (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL17720497T PL3464726T3 (en) | 2016-06-02 | 2017-05-02 | Under tie pad |
EP19197169.6A EP3597824A1 (en) | 2016-06-02 | 2017-05-02 | Sleeper soles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016110173.7A DE102016110173A1 (en) | 2016-06-02 | 2016-06-02 | sleeper |
PCT/EP2017/060358 WO2017207194A1 (en) | 2016-06-02 | 2017-05-02 | Under tie pad |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19197169.6A Division EP3597824A1 (en) | 2016-06-02 | 2017-05-02 | Sleeper soles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3464726A1 true EP3464726A1 (en) | 2019-04-10 |
EP3464726B1 EP3464726B1 (en) | 2019-09-18 |
Family
ID=58645085
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19197169.6A Withdrawn EP3597824A1 (en) | 2016-06-02 | 2017-05-02 | Sleeper soles |
EP17720497.1A Active EP3464726B1 (en) | 2016-06-02 | 2017-05-02 | Under tie pad |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19197169.6A Withdrawn EP3597824A1 (en) | 2016-06-02 | 2017-05-02 | Sleeper soles |
Country Status (7)
Country | Link |
---|---|
EP (2) | EP3597824A1 (en) |
DE (1) | DE102016110173A1 (en) |
ES (1) | ES2753753T3 (en) |
PL (1) | PL3464726T3 (en) |
PT (1) | PT3464726T (en) |
RU (1) | RU2704761C1 (en) |
WO (1) | WO2017207194A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU206455U1 (en) * | 2020-12-17 | 2021-09-13 | Общество с ограниченной ответственностью "Индустриальный центр" | Sleeper pad |
RU2756929C1 (en) * | 2021-01-28 | 2021-10-07 | Камарян Хачатур Оганесович | Sleeper pad and method for its manufacture, construction of railway sleeper with sleeper pad fixed in it and method for connecting sleeper pad with railway sleeper |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1964039C3 (en) * | 1969-12-20 | 1979-04-12 | Raoul Dipl.-Ing. 8992 Hengnau Joern | Elastic element for mounting rails or sleepers |
DE4315215A1 (en) * | 1992-05-09 | 1993-11-11 | Phoenix Ag | Construction of railway line foundation - consists of the rail which is clipped to wooden or concrete sleepers bedded in ballast with two layer flexible underlay pads |
JP2859188B2 (en) * | 1995-11-08 | 1999-02-17 | 東京フアブリック工業株式会社 | Sleeper elastic bearing |
ES2166732B2 (en) * | 2000-09-12 | 2003-07-01 | Plasticos Mondragon Sa | SOIL UNDER CONCRETE CONCRETE FOR HIGH SPEED ROADS. |
DE102004011610A1 (en) * | 2004-03-10 | 2005-09-29 | Spreepolymer Gleistechnik Gmbh | Formation of secure connection between surface of concrete beam and spray-cast high molecular weight polymer coating involves production of undercut grooves in concrete |
US7278588B2 (en) * | 2004-11-08 | 2007-10-09 | Northwest Rubber Extruders, Inc. | Elastomeric railway tie pad |
AT505117B1 (en) * | 2007-04-06 | 2009-05-15 | Semperit Ag Holding | sleeper |
AT506529B1 (en) * | 2008-03-06 | 2010-05-15 | Getzner Werkstoffe Holding Gmbh | THRESHOLD SOLE |
RU2382844C1 (en) * | 2008-12-18 | 2010-02-27 | Открытое Акционерное Общество "Российские Железные Дороги" | Method for manufacturing of reinforced concrete sleeper or reinforced concrete point switch bar with elastic base |
RU130314U1 (en) * | 2013-02-13 | 2013-07-20 | Открытое Акционерное Общество "Российские Железные Дороги" | UNDERWEAR SUPPORT WITH SHOCK ABSORBER |
CN103161100A (en) * | 2013-03-29 | 2013-06-19 | 无锡恒畅铁路轨枕有限公司 | High-strength concrete sleeper |
DE102013007306B4 (en) * | 2013-04-29 | 2017-03-09 | Semperit Ag Holding | rail seat |
-
2016
- 2016-06-02 DE DE102016110173.7A patent/DE102016110173A1/en not_active Withdrawn
-
2017
- 2017-05-02 ES ES17720497T patent/ES2753753T3/en active Active
- 2017-05-02 EP EP19197169.6A patent/EP3597824A1/en not_active Withdrawn
- 2017-05-02 EP EP17720497.1A patent/EP3464726B1/en active Active
- 2017-05-02 PL PL17720497T patent/PL3464726T3/en unknown
- 2017-05-02 PT PT177204971T patent/PT3464726T/en unknown
- 2017-05-02 RU RU2018144945A patent/RU2704761C1/en active
- 2017-05-02 WO PCT/EP2017/060358 patent/WO2017207194A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102016110173A1 (en) | 2017-12-07 |
WO2017207194A1 (en) | 2017-12-07 |
RU2704761C1 (en) | 2019-10-30 |
EP3597824A1 (en) | 2020-01-22 |
PT3464726T (en) | 2019-12-24 |
ES2753753T3 (en) | 2020-04-14 |
PL3464726T3 (en) | 2020-05-18 |
EP3464726B1 (en) | 2019-09-18 |
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