WO2000009807A1 - Chamber filling body made of rigid polyurethane foam - Google Patents

Chamber filling body made of rigid polyurethane foam Download PDF

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Publication number
WO2000009807A1
WO2000009807A1 PCT/EP1999/005815 EP9905815W WO0009807A1 WO 2000009807 A1 WO2000009807 A1 WO 2000009807A1 EP 9905815 W EP9905815 W EP 9905815W WO 0009807 A1 WO0009807 A1 WO 0009807A1
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WO
WIPO (PCT)
Prior art keywords
chamber
casting
rail
rails
polyurethane
Prior art date
Application number
PCT/EP1999/005815
Other languages
German (de)
French (fr)
Inventor
Horst Eilmes
Jean Pierre Frottier
Original Assignee
Sedra Asphalt Technik Biebrich Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sedra Asphalt Technik Biebrich Gmbh filed Critical Sedra Asphalt Technik Biebrich Gmbh
Priority to AT99941564T priority Critical patent/ATE307223T1/en
Priority to EP99941564A priority patent/EP1105575B1/en
Priority to AU55131/99A priority patent/AU5513199A/en
Priority to DE59912682T priority patent/DE59912682D1/en
Publication of WO2000009807A1 publication Critical patent/WO2000009807A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003—Means for reducing the development or propagation of noise
    • 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
    • E01B2204/11—Embedded tracks, using prefab elements or injecting or pouring a curable material

Definitions

  • Chamber filler made of rigid polyurethane foam
  • the invention relates to the use of pure, unfilled polyurethane for chamber fillers and a chamber filler.
  • Rail base connected, by pouring bitumen, resin, rubber and various admixtures.
  • damping buffers which are firmly attached to the rail web and made of elastic material, preferably rubber, for sound absorption.
  • elastic material preferably rubber
  • the use of sponge, moss, or cellular rubber has already been proposed, which could encase not only the rail web but also the rail foot and, for example, with the rail web by gluing or special
  • rubber should be used for chamber fillers, which is provided with cavities to increase the damping properties and thereby avoids screw connections and similar parts connected to the rail web.
  • the rubber profile has obviously been produced as an endless profile by extrusion or similar processes.
  • the filler body can be pushed into the recess between the rail head and the rail base with a self-locking mechanism. It should have a Shore hardness D 10 to D 60 and consist of polyethylene or an elastomer and be supplied in lengths of 500 to 1000 mm
  • the chamber filler can also be filled with mineral wool or foam.
  • the document FR-A 266 43 09 discloses chamber fillers for tram tracks or the like for completely filling the rail chambers.
  • the initially two-part body consisting of a semi-rigid, pressure distribution plate made of polyurethane and a moisture-resistant polyolefin foam cushion, is connected to a piece by welding, gluing or casting.
  • the foam rests fully on the rail; the plate also serves as a separating element from the road building material, lying outside the rail chamber.
  • EP-B 0 180 118 proposes to shed material between two formworks above the rail foot and at a distance from the rail web to the rail head, which consists of solvent-free, elastically curing, two-component material based on polyurethane, in which clay grains are enclosed.
  • DE-A 37 11 190 also discloses fittings made from this material with the same positioning by the same applicant.
  • the fillers In the first four publications mentioned, in addition to the elasticity of the chamber fillers and, if applicable, the similar rail supports, the focus is on sound insulation, in particular the sound insulation emanating from the rail web. In the last three cited patents, due to their design, attempts are essentially made to achieve sound insulation.
  • the fillers When used for tram tracks, especially in connection with grooved rails, the fillers also have the function of separating structure-borne noise from the surrounding material and should serve as the basis for the grouting of the rails up to the top edge of the rail to create a gap between the pavement adjacent to the rail and the rail to close.
  • the material used is also designed to be very elastic in order to decouple the structure-borne noise guarantee.
  • Rod-like molded parts can be produced from the material, which have a shape adapted to the chambers of the tram rail profile, the molded parts preferably being rods of approximately 500 mm in length and with cutouts for those connected to the rail
  • the molded parts can also be provided with a tongue and groove in order to couple them to one another in a form-fitting manner.
  • These molded parts with a relatively high density are also shown in an in-house "Technical Notice No. 7.4 / 11.92" by the applicant from 1992. It also reports that trams in urban areas
  • the economy for horizontal storage i.e. the support of the paving or paths to the superstructure must be taken into account. Therefore, traditionally, different sizes of concrete chamber blocks are used or the rail chambers are poured with mortar.
  • the chamber stone made of the multi-component material based on polyurethane with the addition of rubber has better vibration-damping properties and can also be 100% recycled.
  • the advantage of this dense but elastic chamber stone is that it can be manufactured with a precise fit and with low tolerances.
  • the disadvantage is the relatively high cost compared to the frequently used concrete blocks or the grouting for horizontal storage of the track.
  • the invention is based on the problem of an easy to install, compared to the existing chamber filler made of plastic material according to the prior art essential propose cheaper filler, which has advantages over mortar grouting or concrete blocks.
  • pure, unfilled polyurethane for chamber fillers which are suitable for being clamped into the chambers of rail-guided vehicles, is to be used by casting as rigid foam in a casting mold which is exactly adapted to the chamber shape.
  • the density of the rigid foam should be 40 to 160 kg / m 3 and can be adjusted by the skilled person on the production side to the respective application by selecting the appropriate material.
  • the base material the processing of which as a two-component material is known per se to the person skilled in the art, is added with a corresponding amount of additives such as hardener and also accelerator or the like in order to adjust the processing and / or curing time.
  • the criterion for the choice of density by the person skilled in the art is first the particular requirement for the decoupling of structure-borne noise between the
  • Rail and the surrounding building material such as plaster, bituminous building material or the like.
  • a chamber filler is provided for use in tram tracks, and in the case of use with grooved rails, the chamber filler on both sides of the rails must of course have a shape that is specially adapted to the groove area.
  • densities of the hard foam are set in the upper range of the specified densities. If hardly any traffic loads and thus lower vertical and / or horizontal forces act on the chamber fill, a lower density is selected for the rigid foam.
  • the polyurethane to be cast more precisely that with hardener and / or accelerator and optionally with further additives for coloring or other provided two-component material can be adjusted and, if necessary, the casting mold can be thermally regulated so that the chamber filler has a thin skin (paper skin or integral skin) after casting.
  • Casting process can also be used to change, eg to shorten the response time of the two-component material
  • a full body made of essentially pure unfilled polyurethane has completely sufficient properties in most cases and is also much cheaper than other full bodies made of plastic material to date.
  • the full body is mechanically and thermally sufficiently resilient for the intended use the molded blocks made of concrete or mortar, electrically insulating, especially against stray currents
  • the rail head and rail foot can be pushed into the chamber without the need for additional fastening.
  • additional decoupling formwork can be installed to the side of the rail, the full body made of rigid foam can also be used these elements are nailed or clamped with fasteners on the construction site
  • the casting mold can of course be designed so that these moldings are manufactured with certain grid dimensions, taking into account that between the rails of a track, track holders with corresponding screw connections are arranged on the rail web Clearances, for example for rail fastenings or add-on parts, can be introduced in the casting mold as a negative mold.
  • the casting length corresponds in its product length to the simple, preferably multiple, an installation length of the packing.
  • the installation length can then be created on site by means of a cut, and a cutout can also be cut out for an attachment that is not planned by the factory.
  • the filling body can also be used as a molded foam body of constant cross-section over a long length by e.g. Continuous casting or casting can be produced in long forms.
  • the body is later cut to length using suitable cutting tools, such as knives or saws, and the cutouts, e.g. for tie rods or brackets, rail fastenings and the like can also be cut out using such manually operated cutting tools.
  • suitable cutting tools such as knives or saws
  • the cutouts e.g. for tie rods or brackets, rail fastenings and the like can also be cut out using such manually operated cutting tools.
  • the cut or dividing surfaces do not lose their waterproof properties due to the material.
  • Require rail fastenings can be used again after disassembly / assembly of the track.
  • the filler that is no longer usable can be disposed of with household waste - not hazardous waste - or as concrete crushed aggregate can be added.
  • the filler body is lightweight compared to the concrete bodies but also compared to the plastic bodies according to the prior art and allows fast and clean processing and thus offers a cost saving compared to the purchase price and the transport costs of the concrete elements.
  • the fillers according to the invention thus represent an advanced alternative to conventional concrete chamber filling elements or a corresponding mortar grouting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
  • Road Paving Structures (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • External Artificial Organs (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to the use of pure, unfilled polyurethane for chamber filling bodies and to a chamber filling body which are suitable for blocking the chambers of rails of railborne vehicles by casting in the form of a rigid foam with a mass density ranging from 40 to 160 kg/m3 in a casting mold matching exactly the shape of the chamber. The polyurethane to be cast can be adjusted and the casting mold can be thermally regulated in such a way that the chamber filling body forms a thin layer. According to the invention, it is particularly advantageous to produce the filling body in the casting mold in the form of a shaped foam body with recesses or constant cross sections having a length that is several times greater than the length required for installation, to cut said body in situ with a cutting tool and/or to cut out the recesses for the components coupled to the rails.

Description

Kammerfüllkörper aus PolyurethanhartschaumChamber filler made of rigid polyurethane foam
Die Erfindung betrifft die Verwendung von reinem, ungefülltem Polyurethan für Kammerfüllkörper sowie einen Kammerfüllkörper.The invention relates to the use of pure, unfilled polyurethane for chamber fillers and a chamber filler.
Seit über 70 Jahren wird versucht, Schienen für spurgeführte Fahrzeuge mit Kammerfüllkörpern zur Dämpfung des Lärmes der von den befahrenen Schienen, insbesondere den Schienenstegen ausgeht (US-A 1 771 078), zu bestücken. Vorgeschlagen wurde seinerzeit, derartige Kammerfüllkörper, gegebenenfalls durch Klammern mit ebensolchen Unterlegteilen für denFor over 70 years, attempts have been made to equip rails for track-guided vehicles with chamber fillers to dampen the noise emanating from the rails used, in particular the rail webs (US-A 1 771 078). At that time, it was proposed to fill such chambers, possibly by stapling with such washers for the
Schienenfuß verbunden, durch Vergießen von Bitumen, Harz, Gummi und verschiedenen Beimischungen herzustellen.Rail base connected, by pouring bitumen, resin, rubber and various admixtures.
Gemäß der DE-PS 846 101 ist später vorgeschlagen worden, zur Schalldämpfung an den Schienensteg fest anliegende Dämpfpuffer aus elastischem Material, vorzugsweise Gummi herzustellen. In einer Ausführungsform dieser Veröffentlichung ist auch schon die Verwendung von Schwamm-, Moos-, oder Zellengummi vorgeschlagen worden, der nicht nur den Schienensteg sondern auch den Schienenfuß ummanteln könnte und beispielsweise mit dem Schienensteg durch Kleben oder spezielleAccording to DE-PS 846 101, it was later proposed to produce damping buffers which are firmly attached to the rail web and made of elastic material, preferably rubber, for sound absorption. In one embodiment of this publication, the use of sponge, moss, or cellular rubber has already been proposed, which could encase not only the rail web but also the rail foot and, for example, with the rail web by gluing or special
Anpreßvorrichtungen vorbunden werden soll.Pressure devices should be bound.
Gemäß der DE-U 83 36 005 soll für Kammerfüllkörper Gummi verwendet werden, welches zur Erhöhung der Dämpfungseigenschaften mit Hohlräumen versehen ist und dabei Verschraubungen und ähnliche, mit dem Schienensteg verbundene Teile ausspart. Das Gummiprofil ist offensichtlich als Endlosprofil durch Extrusion oder ähnliche Verfahren hergestellt worden.According to DE-U 83 36 005, rubber should be used for chamber fillers, which is provided with cavities to increase the damping properties and thereby avoids screw connections and similar parts connected to the rail web. The rubber profile has obviously been produced as an endless profile by extrusion or similar processes.
Aus der DE-A 44 23 331 ist ein lärmreduzierter Eisenbahnoberbau bekannt, bei dem Füllkörper den Schienensteg abdecken. Der Füllkörper besteht aus einerFrom DE-A 44 23 331 a noise-reduced railway superstructure is known, in which fillers cover the rail web. The packing consists of a
Vielzahl hintereinander liegender Hohlräume oder Kammern, die Luftschall absorbieren sollen. Der Füllkörper kann mit Selbsthemmung klemmend in die Aussparung zwischen Schienenkopf und Schienenfuß eingeschoben werden. Er soll eine Shore-Härte D 10 bis D 60 aufweisen und aus Polyethylen oder einem Elastomer bestehen und in Längen von 500 bis 1000 mm angeliefertLarge number of successive cavities or chambers that are supposed to absorb airborne sound. The filler body can be pushed into the recess between the rail head and the rail base with a self-locking mechanism. It should have a Shore hardness D 10 to D 60 and consist of polyethylene or an elastomer and be supplied in lengths of 500 to 1000 mm
BESßTIGUNGSKQPlE werden. Die Kammerfüllkörper können zusätzlich mit Mineralwolle oder Schaumstoff gefüllt sein.BESßTIGUNGSKQPlE become. The chamber filler can also be filled with mineral wool or foam.
Die Schrift FR-A 266 43 09 offenbart Kammerfüllkörper für Straßenbahngleise oder ähnliches zum vollständigen Ausfüllen der Schienenkammern. Dabei wird der zunächst zweiteilige Körper, bestehend aus einer halbstarren, der Druckverteilung dienenden Platte aus Polyurethan und einem feuchtigkeitsresistenten Polyolefin-Schaumstoffkissen, durch Schweißen, Kleben oder Angießen zu einem Stück verbunden. Der Schaumstoff liegt vollflächig an der Schiene an; die Platte dient zugleich, außerhalb der Schienenkammer liegend, als Trennelement zum Straßenbaumaterial.The document FR-A 266 43 09 discloses chamber fillers for tram tracks or the like for completely filling the rail chambers. The initially two-part body, consisting of a semi-rigid, pressure distribution plate made of polyurethane and a moisture-resistant polyolefin foam cushion, is connected to a piece by welding, gluing or casting. The foam rests fully on the rail; the plate also serves as a separating element from the road building material, lying outside the rail chamber.
Mit der EP-B 0 180 118 ist vorgeschlagen worden, oberhalb des Schienenfußes und mit Abstand zum Schienensteg bis zum Schienenkopf reichend, zwischen zwei Verschalungen Material zu vergießen, welches aus lösungsmittelfreiem, elastisch aushärtendem Zweikomponentenmaterial auf Polyurethanbasis besteht, in die Tonkörner eingeschlossen sind. In der DE-A 37 11 190 sind auch bereits Formstücke aus diesem Material mit gleicher Positionierung von demselben Anmelder offenbart.EP-B 0 180 118 proposes to shed material between two formworks above the rail foot and at a distance from the rail web to the rail head, which consists of solvent-free, elastically curing, two-component material based on polyurethane, in which clay grains are enclosed. DE-A 37 11 190 also discloses fittings made from this material with the same positioning by the same applicant.
Bei ersten vier genannten Veröffentlichungen steht neben der Elastizität der Kammerfüllkörper und gegebenenfalls der gleichartigen Schienenunterlagen die Schalldämpfung, insbesondere die vom Schienensteg ausgehende Schalldämpfung im Vordergrund. In den letzten drei zitierten Schutzschriften wird bauartbedingt im wesentlichen versucht eine Schalldämmung zu erzielen. Bei der Anwendung für Straßenbahngleise, insbesondere im Zusammenhang mit Rillenschienen, haben die Füllkörper auch die Funktion der Körperschalltrennung zu dem umgebenden Material und sollen als Basis für den Verguß der Schienen bis zur Schienenoberkante dienen, um eine Lücke zwischen dem der Schiene benachbarten Pflaster bis zur Schiene hin zu verschließen. Aus diesen Gründen ist auch das jeweils verwendete Material sehr elastisch gestaltet, um die Entkopplung der Körperschallschwingungen zu gewährleisten.In the first four publications mentioned, in addition to the elasticity of the chamber fillers and, if applicable, the similar rail supports, the focus is on sound insulation, in particular the sound insulation emanating from the rail web. In the last three cited patents, due to their design, attempts are essentially made to achieve sound insulation. When used for tram tracks, especially in connection with grooved rails, the fillers also have the function of separating structure-borne noise from the surrounding material and should serve as the basis for the grouting of the rails up to the top edge of the rail to create a gap between the pavement adjacent to the rail and the rail to close. For these reasons, the material used is also designed to be very elastic in order to decouple the structure-borne noise guarantee.
Diesem Zweck dient auch ein früherer Vorschlag gemäß DE-A 40 04 208 der Anmelderin dieser Erfindung. In dieser Offenlegungsschrift wurde vorgeschlagen, Teile aus mit Polyurethan gebundenen Gummiteilen mit einerA previous proposal according to DE-A 40 04 208 of the applicant of this invention also serves this purpose. In this laid-open document it was proposed to use parts made of rubber parts bonded with polyurethane
Shore-Härte D 80 herzustellen und speziell für Straßenbahnschienen zu verwenden. Aus dem Material können stangenartige Formteile hergestellt werden, die eine den Kammern des Straßenbahnschienenprofils angepaßte Form aufweisen, wobei die Formteile vorzugsweise als Stangen von ca. 500 mm Länge und mit Aussparungen für die mit der Schiene verbundenenManufacture Shore hardness D 80 and use it especially for tram tracks. Rod-like molded parts can be produced from the material, which have a shape adapted to the chambers of the tram rail profile, the molded parts preferably being rods of approximately 500 mm in length and with cutouts for those connected to the rail
Bauteile versehen sind. Die Formteile können auch mit Nut und Feder versehen sein, um sie miteinander formschlüssig zu koppeln. Diese Formteile mit relativ hoher Dichte sind auch in einer hauseigenen "Technische Mitteilung Nr. 7.4/11.92" der Anmelderin aus 1992 dargestellt. Berichtet wird darin des weiteren, daß für Straßenbahnen im städtischenComponents are provided. The molded parts can also be provided with a tongue and groove in order to couple them to one another in a form-fitting manner. These molded parts with a relatively high density are also shown in an in-house "Technical Notice No. 7.4 / 11.92" by the applicant from 1992. It also reports that trams in urban areas
Nahverkehr wurden neben der Vermeidung von Erschütterungen und Lärmentwicklung durch entsprechenden elastischen vertikalen Aufbau der Gleislagerung, der Wirtschaftlichkeit für die horizontale Lagerung, d.h. die Abstützung der Pflasterung oder Wege zum Oberbau hin Rechnung zu tragen ist. Daher werden traditionell auch Betonkammersteine unterschiedlicher Größe eingesetzt oder die Schienenkammern mit Mörtel ausgegossen. Demgegenüber weist der Kammerstein aus dem mehrkomponentigen Material auf Polyurethanbasis unter Beimischung von Gummi bessere schwingungdämpfende Eigenschaften auf und kann zudem 100%-ig recycelt werden. Der Vorteil dieses dichten aber elastischen Kammersteines ist, das er paßgenau und mit niedrigen Toleranzen hergestellt werden kann. Der Nachteil besteht in den relativ hohen Kosten gegenüber den häufig verwendeten Betonkammersteinen oder dem Mörtelverguß für die horizontale Lagerung des Gleises.In addition to the avoidance of vibrations and noise development by means of a corresponding elastic vertical structure of the track bedding, the economy for horizontal storage, i.e. the support of the paving or paths to the superstructure must be taken into account. Therefore, traditionally, different sizes of concrete chamber blocks are used or the rail chambers are poured with mortar. In contrast, the chamber stone made of the multi-component material based on polyurethane with the addition of rubber has better vibration-damping properties and can also be 100% recycled. The advantage of this dense but elastic chamber stone is that it can be manufactured with a precise fit and with low tolerances. The disadvantage is the relatively high cost compared to the frequently used concrete blocks or the grouting for horizontal storage of the track.
Von daher liegt der Erfindung die Problemstellung zugrunde, einen leicht einzubauenden, gegenüber den aus Kunststoffmaterial bestehenden Kammerfüllkörpern gemäß dem Stand der Technik jedoch wesentlich preiswerteren Füllkörper vorzuschlagen, der jedoch gegenüber dem Mörtelverguß oder den Betonsteinen Vorteile aufweist.Therefore, the invention is based on the problem of an easy to install, compared to the existing chamber filler made of plastic material according to the prior art essential propose cheaper filler, which has advantages over mortar grouting or concrete blocks.
Das Problem wird erfindungsgemäß gelöst durch die in den Ansprüchen 1 und 5 angegebenen Merkmale.The problem is solved according to the invention by the features specified in claims 1 and 5.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen erfaßt.Advantageous developments of the invention are covered in the subclaims.
Erfindungsgemäß soll reines, ungefülltes Polyurethan für Kammerfüllkörper, die geeignet sind, in die Kammern schienengeführter Fahrzeuge eingeklemmt zu werden, durch Vergießen als Hartschaum in einer der Kammerform exakt angepaßte Gießform verwendet werden. Die Dichte des Hartschaumes soll dabei 40 bis 160 kg/m3 betragen und kann vom Fachmann produktionsseitig auf den jeweiligen Anwendungsfall durch entsprechende Materialauswahl abgestellt sein. Dazu wird das Basismaterial, dessen Verarbeitung als Zweikomponentenmaterial für sich genommen dem Fachmann geläufig ist, mit einer entsprechenden Menge Additiven wie Härter und auch Beschleuniger oder ähnliches zur Einstellung der Verarbeitung- und / oder Aushärtezeit zugesetzt. Maßstab für die Wahl der Dichte durch den Fachmann ist zunächst die jeweilige Anforderung an die Entkopplung von Körperschall zwischen derAccording to the invention, pure, unfilled polyurethane for chamber fillers, which are suitable for being clamped into the chambers of rail-guided vehicles, is to be used by casting as rigid foam in a casting mold which is exactly adapted to the chamber shape. The density of the rigid foam should be 40 to 160 kg / m 3 and can be adjusted by the skilled person on the production side to the respective application by selecting the appropriate material. For this purpose, the base material, the processing of which as a two-component material is known per se to the person skilled in the art, is added with a corresponding amount of additives such as hardener and also accelerator or the like in order to adjust the processing and / or curing time. The criterion for the choice of density by the person skilled in the art is first the particular requirement for the decoupling of structure-borne noise between the
Schiene und dem umgebenden Baustoff wie Pflaster, bituminösem Baumaterial oder ähnlichem. Insbesondere ist ein derartiger Kammerfüllkörper für die Verwendung in Straßenbahngleisen vorgesehen, wobei im Falle der Verwendung bei Rillenschienen, die Kammerfüllkörper beidseits der Schienen natürlich eine an den Rillenbereich speziell angepaßte Form haben müssen.Rail and the surrounding building material such as plaster, bituminous building material or the like. In particular, such a chamber filler is provided for use in tram tracks, and in the case of use with grooved rails, the chamber filler on both sides of the rails must of course have a shape that is specially adapted to the groove area.
Liegt der Einbauort der Kammerfüllkörper in einer durch Kraftfahrzeuge stark belasteten Straße, werden Dichten des Hartschaumes im oberen Bereich der angegebene Dichten eingestellt. Wenn kaum Verkehrslasten und damit geringere Vertikal- und / oder Horizontalkräfte auf den Kammerfüllkörper einwirken, wird eine niedrigere Dichte für den Hartschaum gewählt.If the location of the chamber filler is in a road heavily loaded by motor vehicles, densities of the hard foam are set in the upper range of the specified densities. If hardly any traffic loads and thus lower vertical and / or horizontal forces act on the chamber fill, a lower density is selected for the rigid foam.
In Weiterentwicklungen der Erfindung soll das zu vergießende Polyurethan, genauer das mit Härter und / oder Beschleuniger sowie gegebenenfalls mit weiteren Zusätzen zur Farbgebung oder anderes versehene Zwei- Komponenten-Mateπal so eingestellt werden und gegebenenfalls die Gießform thermisch so reguliert sein, daß der Kammerfullkorper nach dem Vergießen eine dünne Haut (Papierhaut oder Integralhaut) hat Die thermische Behandlung bzw Verfahrensfuhrung wahrend desIn further developments of the invention, the polyurethane to be cast, more precisely that with hardener and / or accelerator and optionally with further additives for coloring or other provided two-component material can be adjusted and, if necessary, the casting mold can be thermally regulated so that the chamber filler has a thin skin (paper skin or integral skin) after casting. The thermal treatment or process control during the
Gießprozesses kann auch zur Veränderung, z B zur Verkürzung der Reaktionszeit des Zwei-Komponenten-Mateπals genutzt werdenCasting process can also be used to change, eg to shorten the response time of the two-component material
Ein so hergestellter Fullkorper aus im wesentlichen reinem ungefülltem Polyurethan hat in den meisten Fallen völlig ausreichende Eigenschaften und ist zudem wesentlich preiswerter als andere bisher aus Kunststoffmateπal gefertigte Fullkorper Der Fullkorper ist mechanisch und thermisch für den angegebenen Verwendungszweck ausreichend belastbar Durch seine Wasserdichtigkeit wirkt er im Gegensatz zu den Formsteinen aus Beton oder Mörtel elektrisch isolierend, insbesondere gegenüber Streustromen DieseA full body made of essentially pure unfilled polyurethane has completely sufficient properties in most cases and is also much cheaper than other full bodies made of plastic material to date. The full body is mechanically and thermally sufficiently resilient for the intended use the molded blocks made of concrete or mortar, electrically insulating, especially against stray currents
Anforderung wird wegen der Gleisruckmeldesysteme oder möglichem Lochfraß in Kombination mit Oberflachenwassern, die als Elektrolyte wirken, heute häufig erhoben und konnte nach dem Stand der Technik nur durch teure Kunststoffteile verwirklicht werden Durch seine Paßform kann der Fullkorper selbsthemmend zwischenDue to the track pressure detection systems or possible pitting in combination with surface water, which act as electrolytes, the requirement is frequently raised today and, according to the state of the art, could only be achieved by expensive plastic parts. Due to its fit, the full body can be self-locking between
Schienenkopf und Schienenfuß in die Kammer eingeschoben werden, ohne daß es einer zusätzlichen Befestigung bedarf Für den Fall, daß der Schienenfuß additiv eine entsprechende Unterlage hat oder aus bautechnischen oder schwingungstechnischen Gründen seitlich der Schiene weitere Entkoppelschalungen eingebaut werden, kann der aus Hartschaum bestehende Fullkorper auch mit diesen Elementen vernagelt oder verklammert werden mit baustellenubhchen BefestigungselementenThe rail head and rail foot can be pushed into the chamber without the need for additional fastening. In the event that the rail foot has an additional base or for structural or vibration-related reasons, additional decoupling formwork can be installed to the side of the rail, the full body made of rigid foam can also be used these elements are nailed or clamped with fasteners on the construction site
In Weiterbildung der Erfindung kann die Gießform natürlich so gestaltet sein, daß diese Formkorper mit bestimmten Rastermaßen gefertigt werden, dabei berücksichtigend, daß zwischen den Schienen eines Gleises Spurhalter mit entsprechenden Verschraubungen am Schienensteg angeordnet sind Die dafür notigen Aussparungen, aber auch weitere Aussparungen in regelmäßigen Abständen, z.B. für Schienenbefestigungen oder Anbauteile, können in der Gießform gleich als Negativform eingebracht sein. Die Gießform entspricht dabei in seiner Produktlänge dem Einfachen, vorzugsweise dem Mehrfachen, einer Einbaulänge des Füllkörpers. Die Einbaulänge kann dann vor Ort durch Trennschnitt erzeugt werden, ebenso kann eine Aussparung für ein fabrikseitig nicht geplantes Anbauteil ausgeschnitten werden.In a further development of the invention, the casting mold can of course be designed so that these moldings are manufactured with certain grid dimensions, taking into account that between the rails of a track, track holders with corresponding screw connections are arranged on the rail web Clearances, for example for rail fastenings or add-on parts, can be introduced in the casting mold as a negative mold. The casting length corresponds in its product length to the simple, preferably multiple, an installation length of the packing. The installation length can then be created on site by means of a cut, and a cutout can also be cut out for an attachment that is not planned by the factory.
Gemäß einer Variante kann der Füllkörper jedoch auch als Formschaumkörper konstanten Querschnitts in großer Länge durch z.B. Stranggießen oder Gießen in langen Formen erzeugt werden. Baustellenseitig wird später der Körper mittels geeigneter Trennwerkzeuge, wie Messer oder Sägen auf Länge geschnitten und die Aussparungen, z.B. für Spurstangen oder Laschen, Schienenbefestigungen und ähnliches können ebenfalls durch derartige manuell bedienbare Trennwerkzeuge ausgeschnitten werden. Die Schnitt- oder Trennflächen verlieren dabei materialbedingt ihre Eigenschaft der Wasserdichtheit nicht.According to a variant, however, the filling body can also be used as a molded foam body of constant cross-section over a long length by e.g. Continuous casting or casting can be produced in long forms. On the construction site, the body is later cut to length using suitable cutting tools, such as knives or saws, and the cutouts, e.g. for tie rods or brackets, rail fastenings and the like can also be cut out using such manually operated cutting tools. The cut or dividing surfaces do not lose their waterproof properties due to the material.
Die beiden beschriebenen Herstellvarianten ersparen Herstellkosten und verringern die Typenvielfalt entscheidend.The two manufacturing variants described save manufacturing costs and significantly reduce the variety of types.
Dieses Verfahren des nachträglichen Anpassens an die Umgebungsform ist für Polyurethanhartschaum aus der Sanitärtechnik entlehnt, bei der derartige Hartschaumkörper, die auch wasserdicht sein können, an die Form einer Wanne oder ähnliches angepaßt werden.This method of subsequent adaptation to the surrounding shape is borrowed for rigid polyurethane foam from sanitary engineering, in which rigid foam bodies of this type, which can also be waterproof, are adapted to the shape of a tub or the like.
Weitere Vorteile eines derartigen Füllkörpers sind, daß auch Anpassungen an kleine Schienenradien durch entsprechendes Zuschneiden möglich sind oder bei Bedarf auch ein Verkleben mit entsprechenden, für Polyurethan geeigneten Klebern möglich ist. Bevorzugt ist jedoch der Verzicht auf das Kleben, damit der Füllkörper nach Wartungsarbeiten, die einen Zugang zu denFurther advantages of such a filler body are that adjustments to small rail radii are also possible by appropriate cutting or, if necessary, gluing with appropriate adhesives suitable for polyurethane is also possible. However, preference is given to dispensing with gluing, so that the filler body has access to the after maintenance work
Schienenbefestigungen bedingen oder nach Demontage / Montage des Gleises wieder verwendet werden können. Der nicht mehr gebrauchsfähige Füllkörper kann mit dem Hausmüll - nicht Sondermüll - entsorgt oder dem Beton als zerkleinerter Zuschlagstoff beigemischt werden.Require rail fastenings or can be used again after disassembly / assembly of the track. The filler that is no longer usable can be disposed of with household waste - not hazardous waste - or as concrete crushed aggregate can be added.
Der Füllkörper ist gegenüber den Betonkörpern aber auch gegenüber den Kunststoffkörpern gemäß dem Stand der Technik leicht und läßt eine schnelle und saubere Verarbeitung zu und bietet somit eine Kostenersparnis gegenüber dem Beschaffungspreis und den Transportkosten der Betonelemente. Die erfindungsgemäßen Füllkörper stellen damit eine fortschrittliche Alternative zu konventionellen Betonkammerfüllelementen oder einem entsprechenden Mörtelverguß dar. The filler body is lightweight compared to the concrete bodies but also compared to the plastic bodies according to the prior art and allows fast and clean processing and thus offers a cost saving compared to the purchase price and the transport costs of the concrete elements. The fillers according to the invention thus represent an advanced alternative to conventional concrete chamber filling elements or a corresponding mortar grouting.

Claims

Patentansprüche claims
1. Verwendung von reinem, ungefülltem Polyurethan für Kammerfüllkörper, geeignet zum Einklemmen in Kammern von Schienen spurgeführter Fahrzeuge, durch Vergießen als Hartschaum mit einer Dichte von 40 bis1. Use of pure, unfilled polyurethane for chamber fillers, suitable for clamping in chambers of rails of track-guided vehicles, by casting as rigid foam with a density of 40 to
160 kg/m3 in eine der Kammerform exakt angepaßte Gießform.160 kg / m 3 in a mold that is precisely adapted to the chamber shape.
2. Verwendung nach Anspruch 1 , dadurch gekennzeichnet, daß das zu vergießende Polyurethan als Zwei-Komponenten-Material so eingestellt und die Gießform thermisch so reguliert wird, daß der Kammerfüllkörper nach dem Vergießen eine dünne Haut bildet.2. Use according to claim 1, characterized in that the polyurethane to be cast is set as a two-component material and the casting mold is thermally regulated so that the chamber filler forms a thin skin after the casting.
3. Verwendung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in der Gießform ein Formschaumkörper bestimmter Länge unter Berücksichtigung von mindestens einigen regelmäßigen Aussparungen für Schienenanbau- oder Schienbefestigungsmittel in einfacher oder mehrfacher Einbaulänge erzeugt, baustellenseitig erforderlichenfalls mittels Trennwerkzeug der Formschaumkörper auf exakte Einbaulänge abgelängt und / oder zusätzliche Aussparungen für mit den Schienen gekoppelte Mittel hergestellt werden.3. Use according to claim 1 or 2, characterized in that a molded foam body of a certain length is produced in the casting mold, taking into account at least some regular recesses for rail mounting or rail fastening means in single or multiple installation length, cut to the required length on site by means of a separating tool of the molded foam body and / or additional cutouts can be made for means coupled to the rails.
4. Verwendung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Formschaumkörper durch Stranggießen erzeugt wird.4. Use according to one of claims 1 to 3, characterized in that the molded foam body is produced by continuous casting.
5. Kammerfüllkörper zum Einklemmen in Kammern von Schienen spurgeführter Fahrzeuge, hergestellt durch Vergießen als Hartschaum in eine der Kammerform exakt angepaßte Gießform, wobei der Hartschaum mit einer Dichte von 40 bis 160 kg/m3 aus produktionsseitig entsprechend eingestelltem reinem, ungefülltem Polyurethan besteht. 5. Chamber filler for clamping in the chambers of rails of track-guided vehicles, produced by casting as rigid foam in a mold that is exactly adapted to the chamber shape, the rigid foam with a density of 40 to 160 kg / m 3 consisting of pure, unfilled polyurethane adjusted on the production side.
PCT/EP1999/005815 1998-08-11 1999-08-11 Chamber filling body made of rigid polyurethane foam WO2000009807A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT99941564T ATE307223T1 (en) 1998-08-11 1999-08-11 CHAMBER FILLING BODY MADE OF HARD POLYURETHANE FOAM
EP99941564A EP1105575B1 (en) 1998-08-11 1999-08-11 Chamber filling body made of rigid polyurethane foam
AU55131/99A AU5513199A (en) 1998-08-11 1999-08-11 Chamber filling body made of rigid polyurethane foam
DE59912682T DE59912682D1 (en) 1998-08-11 1999-08-11 CHAMBER FILLING BODY OF POLYURETHANEHUME

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19837479A DE19837479C1 (en) 1998-08-11 1998-08-11 Chamber filler made of rigid polyurethane foam
DE19837479.8 1998-08-11

Publications (1)

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WO2000009807A1 true WO2000009807A1 (en) 2000-02-24

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AT (1) ATE307223T1 (en)
AU (1) AU5513199A (en)
DE (2) DE19837479C1 (en)
ES (1) ES2251219T3 (en)
WO (1) WO2000009807A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102010049701A1 (en) * 2010-10-28 2012-05-03 Db Netz Ag Back bar insulation of heated points

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US1771078A (en) 1926-01-06 1930-07-22 Carey Philip Mfg Co Rail-expansion sound deadener
DE846101C (en) 1950-04-04 1952-08-07 Vorwerk & Sohn Device for vibration dampening and soundproofing in railway superstructures
DE8336005U1 (en) 1983-12-15 1984-09-27 Phoenix Ag, 2100 Hamburg ELASTIC SUPPORT BEARING FOR RAILWAY RAILWAYS
EP0180118B1 (en) 1984-10-26 1988-08-17 Lothar Eisner Material for the mounting of rails
DE3711190A1 (en) 1987-04-02 1988-10-27 Lothar Eisner Method for fastening structure-borne noise insulation to rails for rail-bound vehicles, and structure-borne noise insulation therefor
DE4004208A1 (en) 1990-02-12 1991-08-14 Chem Fab Biebrich Vorm Seck & Noise and vibration damping system for tram tracks - in which rail foot is supported in trough-shaped moulding and by bar-shaped side supports or polyurethane and scrap rubber
FR2664309A1 (en) 1990-07-05 1992-01-10 Alveo Ag Lateral filling profile (section) for tramway rail or the like
WO1993001354A1 (en) * 1991-07-11 1993-01-21 Jenbacher Transportsysteme Aktiengesellschaft Noise reduction device for railway tracks
DE4423331A1 (en) 1994-03-31 1996-01-04 Udo Wirthwein Noise-reducing railway permanent way construction
EP0825300A1 (en) * 1996-08-17 1998-02-25 Sedra Asphalt-Technik Biebrich GmbH Method and device for mounting rails in track building

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Publication number Priority date Publication date Assignee Title
DE8412347U1 (en) * 1984-04-19 1984-07-19 Alveo AG, 6003 Luzern FILLING ELEMENT FOR FILLING THE TABLET CHAMBER OF TRAM RAILWAYS OD. DGL.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1771078A (en) 1926-01-06 1930-07-22 Carey Philip Mfg Co Rail-expansion sound deadener
DE846101C (en) 1950-04-04 1952-08-07 Vorwerk & Sohn Device for vibration dampening and soundproofing in railway superstructures
DE8336005U1 (en) 1983-12-15 1984-09-27 Phoenix Ag, 2100 Hamburg ELASTIC SUPPORT BEARING FOR RAILWAY RAILWAYS
EP0180118B1 (en) 1984-10-26 1988-08-17 Lothar Eisner Material for the mounting of rails
DE3711190A1 (en) 1987-04-02 1988-10-27 Lothar Eisner Method for fastening structure-borne noise insulation to rails for rail-bound vehicles, and structure-borne noise insulation therefor
DE4004208A1 (en) 1990-02-12 1991-08-14 Chem Fab Biebrich Vorm Seck & Noise and vibration damping system for tram tracks - in which rail foot is supported in trough-shaped moulding and by bar-shaped side supports or polyurethane and scrap rubber
FR2664309A1 (en) 1990-07-05 1992-01-10 Alveo Ag Lateral filling profile (section) for tramway rail or the like
WO1993001354A1 (en) * 1991-07-11 1993-01-21 Jenbacher Transportsysteme Aktiengesellschaft Noise reduction device for railway tracks
DE4423331A1 (en) 1994-03-31 1996-01-04 Udo Wirthwein Noise-reducing railway permanent way construction
EP0825300A1 (en) * 1996-08-17 1998-02-25 Sedra Asphalt-Technik Biebrich GmbH Method and device for mounting rails in track building

Also Published As

Publication number Publication date
EP1105575B1 (en) 2005-10-19
ATE307223T1 (en) 2005-11-15
AU5513199A (en) 2000-03-06
DE59912682D1 (en) 2005-11-24
ES2251219T3 (en) 2006-04-16
DE19837479C1 (en) 2000-06-15
EP1105575A1 (en) 2001-06-13

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