EP0547082B1 - Foundation for railway track - Google Patents

Foundation for railway track Download PDF

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Publication number
EP0547082B1
EP0547082B1 EP91914970A EP91914970A EP0547082B1 EP 0547082 B1 EP0547082 B1 EP 0547082B1 EP 91914970 A EP91914970 A EP 91914970A EP 91914970 A EP91914970 A EP 91914970A EP 0547082 B1 EP0547082 B1 EP 0547082B1
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European Patent Office
Prior art keywords
fact
rail
foundation according
precast concrete
rails
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EP91914970A
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German (de)
French (fr)
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EP0547082A1 (en
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Hermann Ortwein
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    • 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
    • E01B3/16—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from steel
    • E01B3/22—Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers
    • 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
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/38—Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers; Layers of concrete supporting both rails

Definitions

  • the invention relates to a substructure for a track for rail vehicles running at the same height as individual traffic or laid in tunnels, the rails forming the track being supported with their lateral boundary surfaces located below the rail head via elastic intermediate layers against the inner lateral boundary surfaces of a frame and thereby are mounted so elastically that they move over a spring travel of at least 3 mm when loaded by a rail vehicle traveling over them.
  • a rail mounting is known from WO-A-8 912 140.
  • Tracks running at the same height as private traffic are generally laid on packing layers, grit or compacted and possibly solidified soil or on concrete slabs that lie directly on the ground (DE-OS 29 01 283, DE-OS 23 54 958) while tracks running in tunnels are often laid over gravel. Both the soil and the ballast or the packing layers or the like are elastic within certain limits and thus form a spring which causes a slight damping of structure-borne noise.
  • the superimposition of the natural frequency of the elastic mounting of the rail and the natural frequency of the second spring formed by the soil or the ballast or the packing layer or the like is particularly disadvantageous when the rails forming the track are elastically supported such that they move over a spring travel of at least 3 mm when loaded by a rail vehicle traveling over it. Undesired resonances can occur with such elastically mounted rails, which provide particularly good damping of structure-borne noise.
  • the invention is based on the object of designing the substructure mentioned at the outset in such a way that the transmission of vibrations from the rails to the ground or the ballast or the packing layers or the like is excluded.
  • the substructure Due to the design of the substructure according to the invention, the substructure has such a large bending moment that there is no or negligible deflection of the substructure and the support forming a spring is therefore switched off.
  • the support provided under the rail is formed by a U-profile which is open at the bottom.
  • the support provided under the rail is formed by a T-profile, the flange of the T-profile running horizontally and facing the rail.
  • the two aforementioned embodiments of the invention are particularly suitable for tracks laid on ballast, packing layers or the like; however, they can also be used for tracks laid directly on the ground.
  • the support provided under the rail is formed by a double-T profile, the flanges of the double-T profile running horizontally.
  • This embodiment of the invention is particularly suitable for tracks laid directly or via a concrete slab on the ground.
  • the support provided under the rail must be more resistant to bending, the softer the substrate, an increase in the bending stiffness of the support can be achieved according to the invention by the support being filled or underfilled with concrete.
  • the carrier is formed by prefabricated concrete parts, the height of the prefabricated concrete parts at least corresponding to their width in a development of the invention.
  • a base is particularly inexpensive to manufacture.
  • the height of the precast concrete elements is expediently at least one and a half times their width.
  • the precast concrete parts are provided with a recess on their underside; so that each precast concrete element has two side surfaces on its underside.
  • the entire substructure of a track has four side surfaces, which counteract a horizontal push of the substructure.
  • the substructure according to the invention can be further improved in that the supports provided under the two rails of a track are connected to one another by transverse struts, the distance between the struts from one another being at least 3 m according to a further feature of the invention.
  • the struts do not only replace the usual rail spacers; they also prevent the beams from tipping over.
  • the top of the precast concrete elements is provided at certain intervals with recesses for driving in wedges for the vertical alignment of the rails.
  • a carrier formed by a U-profile 5 open at the bottom is provided.
  • the length L of the legs 6 of the U-profile 5 is adapted to the underground. In the case of softer soil 4 or in the case of a U-profile 5 laid on gravel, the length L of the legs 6 can also be greater than in the exemplary embodiment shown.
  • the spaces between and next to the two legs 6 of the U-section 5 are at least partially filled with soil, gravel or the like.
  • Fig. 2 is a support formed by a T-profile 7 for an elastically mounted - not shown - rail, which rests directly on the ground 4 and which is underfilled with concrete 8 to increase its bending rigidity.
  • Fig. 3 shows a carrier formed by a double-T profile 9.
  • a transverse strut 10 is fastened to the double-T profile 9, the other end of which is fastened to the support carrying the second rail of the track.
  • each precast concrete element 11 has two side surfaces 13, 14 and 15, 16 on its underside, which make it impossible to move the precast concrete elements 11 laterally.
  • precast concrete elements 11 for the two - not shown - elastically mounted rails of a track are connected to one another by struts 17 which are arranged at certain intervals A one behind the other.
  • struts 17 which are arranged at certain intervals A one behind the other.
  • recesses 18 into which wedges (not shown) can be driven in order to bring about a vertical alignment of the rails.

Abstract

The invention concerns a foundation for railway track laid to run at the same height as a surface for road vehicles or laid in a tunnel. The rails (1) are resiliently mounted in such a way that, when subjected to the stress produced by a passing rail vehicle, they move through a distance of at least 3 mm, a continuous, flexurally rigid support (6) being fitted under each rail.

Description

Die Erfindung betrifft einen Unterbau für ein in gleicher Höhe mit dem Individualverkehr verlaufendes oder in Tunneln verlegtes Gleis für Schienenfahrzeuge, wobei die das Gleis bildenden Schienen sich mit ihren unterhalb des Schienenkopfes befindlichen seitlichen Begrenzungsflächen über elastische Zwischenlagen gegen die inneren seitlichen Begrenzungsflächen eines Rahmens abstützen und dadurch derart elastisch gelagert sind, daß sie sich bei Belastung durch ein darüberfahrendes Schienenfahrzeug über einen Federweg von mindestens 3 mm bewegen. Eine derartige Schienenlagerung ist aus WO-A-8 912 140 bekannt.The invention relates to a substructure for a track for rail vehicles running at the same height as individual traffic or laid in tunnels, the rails forming the track being supported with their lateral boundary surfaces located below the rail head via elastic intermediate layers against the inner lateral boundary surfaces of a frame and thereby are mounted so elastically that they move over a spring travel of at least 3 mm when loaded by a rail vehicle traveling over them. Such a rail mounting is known from WO-A-8 912 140.

In gleicher Höhe mit dem Individualverkehr verlaufende Gleise sind in aller Regel auf Packlagen, Splitt oder verdichtetem und gegebenenfalls verfestigtem Erdreich oder auf Betonplatten verlegt, die unmittelbar auf dem Erdreich aufliegen (DE-OS 29 01 283, DE-OS 23 54 958), während in Tunneln verlaufende Gleise häufig über Schotter verlegt sind. Sowohl das Erdreich als auch der Schotter bzw. die Packlagen o. dgl. sind innerhalb bestimmter Grenzen elastisch und bilden somit eine Feder, die eine geringfügige Dämpfung des Körperschalls bewirkt.Tracks running at the same height as private traffic are generally laid on packing layers, grit or compacted and possibly solidified soil or on concrete slabs that lie directly on the ground (DE-OS 29 01 283, DE-OS 23 54 958) while tracks running in tunnels are often laid over gravel. Both the soil and the ballast or the packing layers or the like are elastic within certain limits and thus form a spring which causes a slight damping of structure-borne noise.

Wenn bei so gelagerten Gleisen zur weiteren Verminderung der beim Befahren des durch die Schienen gebildeten Gleises auftretenden Erschütterungen und des damit einhergehenden Körperschalls elastisch gelagerte Schienen verwendet werden, so überlagern sich die Eigenfrequenz der wie eine Feder wirkenden elastischen Lagerung der Schienen und die Eigenfrequenz der durch das Erdreich oder den Schotter bzw. die Packlagen o. dgl. gebildeten zweiten Feder, was dazu führt, daß die angestrebte Verminderung des Körperschalls nicht erreicht wird bzw. Verschiebungen in den Frequenzbereichen stattfinden.If rails mounted in this way are used to further reduce the vibrations occurring when driving on the track formed by the rails and the associated structure-borne sound, then the natural frequency of the spring-like elastic mounting of the rails and the natural frequency of the rails are superimposed Soil or the ballast or the packing layers or the like. Second spring formed, which leads to the fact that the desired The structure-borne noise is not reduced or there are shifts in the frequency ranges.

Besonders nachteilig wirkt sich die Überlagerung der Eigenfrequenz der elastischen Lagerung der Schiene und der Eigenfrequenz der durch das Erdreich oder den Schotter bzw. die Packlage o. dgl. gebildeten zweiten Feder dann aus, wenn die das Gleis bildenden Schienen derart elastisch gelagert sind, daß sie sich bei Belastung durch ein darüberfahrendes Schienenfahrzeug über einen Federweg von mindestens 3 mm bewegen. Bei derart elastisch gelagerten Schienen, die eine besonders gute Dämpfung des Körperschalls bewirken, können unerwünschte Resonanzen auftreten.The superimposition of the natural frequency of the elastic mounting of the rail and the natural frequency of the second spring formed by the soil or the ballast or the packing layer or the like is particularly disadvantageous when the rails forming the track are elastically supported such that they move over a spring travel of at least 3 mm when loaded by a rail vehicle traveling over it. Undesired resonances can occur with such elastically mounted rails, which provide particularly good damping of structure-borne noise.

Der Erfindung liegt die Aufgabe zugrunde, den eingangs erwähnten Unterbau so auszubilden, daß eine Übertragung von Schwingungen von den Schienen auf das Erdreich oder den Schotter bzw. die Packlagen o. dgl. ausgeschlossen ist.The invention is based on the object of designing the substructure mentioned at the outset in such a way that the transmission of vibrations from the rails to the ground or the ballast or the packing layers or the like is excluded.

Die Lösung der gestellten Aufgabe besteht bei einem Unterbau der eingangs genannten Art darin, daß unter jeder Schiene des Gleises ein biegesteifer, in Schienenlängsrichtung durchlaufender Träger vorgesehen ist.The solution to the problem in a substructure of the type mentioned is that a rigid, continuous in the longitudinal direction of the support beam is provided under each rail of the track.

Durch die erfindungsgemäße Ausgestaltung des Unterbaus weist dieser ein so großes Biegemoment auf, daß keine oder eine zu vernachlässigende Durchbiegung des Unterbaus stattfindet und somit die eine Feder bildende Auflage ausgeschaltet ist.Due to the design of the substructure according to the invention, the substructure has such a large bending moment that there is no or negligible deflection of the substructure and the support forming a spring is therefore switched off.

In Ausgestaltung der Erfindung ist der unter der Schiene vorgesehene Träger durch ein nach unten offenes U-Profil gebildet.In an embodiment of the invention, the support provided under the rail is formed by a U-profile which is open at the bottom.

In weiterer Ausgestaltung der Erfindung ist der unter der Schiene vorgesehene Träger durch ein T-Profil gebildet, wobei der Flansch des T-Profils waagerecht verläuft und der Schiene zugewandt ist.In a further embodiment of the invention, the support provided under the rail is formed by a T-profile, the flange of the T-profile running horizontally and facing the rail.

Die beiden vorgenannten Ausführungsformen der Erfindung eignen sich insbesondere für auf Schotter, Packlagen o. dgl. verlegte Gleise; sie können jedoch auch bei unmittelbar auf dem Erdreich verlegte Gleise angewendet werden.The two aforementioned embodiments of the invention are particularly suitable for tracks laid on ballast, packing layers or the like; however, they can also be used for tracks laid directly on the ground.

Nach einem anderen Merkmal der Erfindung ist der unter der Schiene vorgesehene Träger durch ein Doppel-T-Profil gebildet, wobei die Flansche des Doppel-T-Profils waagerecht verlaufen. Diese Ausführungsform der Erfindung eignet sich insbesondere für unmittelbar bzw. über eine Betonplatte auf das Erdreich verlegte Gleise.According to another feature of the invention, the support provided under the rail is formed by a double-T profile, the flanges of the double-T profile running horizontally. This embodiment of the invention is particularly suitable for tracks laid directly or via a concrete slab on the ground.

Da der unter der Schiene vorgesehene Träger um so biegesteifer sein muß, je weicher der Untergrund ist, kann erfindungsgemäß eine Erhöhung der Biegesteifigkeit des Trägers dadurch bewirkt werden, daß der Träger durch Beton ausgefüllt bzw. unterfüllt ist.Since the support provided under the rail must be more resistant to bending, the softer the substrate, an increase in the bending stiffness of the support can be achieved according to the invention by the support being filled or underfilled with concrete.

Bei einem bevorzugten Ausführungsbeispiel der Erfindung ist der Träger durch Betonfertigteile gebildet, wobei in Weiterbildung der Erfindung die Höhe der Betonfertigteile mindestens deren Breite entspricht. Ein derartiger Unterbau ist besonders preiswert herzustellen.In a preferred exemplary embodiment of the invention, the carrier is formed by prefabricated concrete parts, the height of the prefabricated concrete parts at least corresponding to their width in a development of the invention. Such a base is particularly inexpensive to manufacture.

Zweckmäßigerweise beträgt die Höhe der Betonfertigteile mindestens das Eineinhalbfache von deren Breite.The height of the precast concrete elements is expediently at least one and a half times their width.

Um ein seitliches Verschieben der Betonfertigteile auszuschließen, sind nach einem weiteren Merkmal der Erfindung die Betonfertigteile an ihrer Unterseite mit einer Ausnehmung versehen; so daß jedes Betonfertigteil an seiner Unterseite je zwei Seitenflächen aufweist. Somit verfügt der gesamte Unterbau eines Gleises über je vier Seitenflächen, die einem Horizontalschub des Unterbaus entgegenwirken.In order to rule out lateral displacement of the precast concrete parts, according to a further feature of the invention, the precast concrete parts are provided with a recess on their underside; so that each precast concrete element has two side surfaces on its underside. Thus, the entire substructure of a track has four side surfaces, which counteract a horizontal push of the substructure.

Der erfindungsgemäße Unterbau kann noch dadurch verbessert werden, daß die unter den beiden Schienen eines Gleises vorgesehenen Träger durch quer verlaufende Streben miteinander verbunden sind, wobei nach einem weiteren Merkmal der Erfindung der Abstand der Streben voneinander mindestens 3 m beträgt. Dadurch erübrigt sich eine unmittelbare Verbindung der beiden Schienen miteinander. Die Streben ersetzen aber nicht nur die sonst üblichen Schienenabstandhalter; sie verhindern darüber hinaus ein Kippen der Träger.The substructure according to the invention can be further improved in that the supports provided under the two rails of a track are connected to one another by transverse struts, the distance between the struts from one another being at least 3 m according to a further feature of the invention. This eliminates the need for a direct connection between the two rails. The struts do not only replace the usual rail spacers; they also prevent the beams from tipping over.

Um eine exakte Ausrichtung jeder einzelnen Schiene zu ermöglichen, ist die Oberseite der Betonfertigteile in bestimmten Abständen mit Aussparungen zum Eintreiben von Keilen für die vertikale Ausrichtung der Schienen versehen.In order to enable an exact alignment of each individual rail, the top of the precast concrete elements is provided at certain intervals with recesses for driving in wedges for the vertical alignment of the rails.

Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt. Es zeigen:

Fig. 1
einen durch ein nach unten offenes U-Profil gebildeten, unter einer Schiene vorgesehenen Träger, im Querschnitt;
Fig. 2
einen durch ein T-Profil gebildeten Träger, der mit Beton unterfüllt ist, im Querschnitt;
Fig. 3
einen durch ein Doppel-T-Profil gebildeten Träger, im Querschnitt;
Fig. 4
einen durch Betonfertigteile gebildeten, unter einer Schiene vorgesehenen Träger, im Querschnitt;
Fig. 5
zwei andere durch Betonfertigteile gebildete, mittels Streben miteinander verbundene Träger für die beiden Schienen eines Gleises, wobei die beiden Schienen nicht dargestellt sind, in perspektivischer Darstellung.
Several embodiments of the invention are shown in the drawing. Show it:
Fig. 1
a cross section formed by a downwardly open U-profile, provided under a rail support;
Fig. 2
a cross-section of a beam formed by a T-profile, which is filled with concrete;
Fig. 3
a carrier formed by a double-T profile, in cross section;
Fig. 4
a cross-section of a beam formed by precast concrete elements, provided under a rail;
Fig. 5
two other, formed by precast concrete elements, connected to one another by means of struts for the two rails of a track, the two rails not being shown, in a perspective view.

Bei dem in Fig. 1 dargestellten Ausführungsbeispiel ist zwischen der Schiene 1, die sich über elastische Zwischenlagen 2 gegen einen Rahmen 3 abstützt, und dem Erdreich 4 ein durch ein nach unten offenes U-Profil 5 gebildeter Träger vorgesehen. Die Länge L der Schenkel 6 des U-Profils 5 wird jeweils dem Untergrund angepaßt. Bei weicherem Erdreich 4 bzw. bei einem auf Schotter verlegten U-Profil 5 kann die Länge L der Schenkel 6 auch größer sein als bei dem dargestellten Ausführungsbeispiel. Die Räume zwischen und neben den beiden Schenkeln 6 des U-Profils 5 sind zumindest teilweise mit Erdreich, Schotter o. dgl. ausgefüllt.In the embodiment shown in Fig. 1 between the rail 1, which is supported via elastic intermediate layers 2 against a frame 3, and the ground 4, a carrier formed by a U-profile 5 open at the bottom is provided. The length L of the legs 6 of the U-profile 5 is adapted to the underground. In the case of softer soil 4 or in the case of a U-profile 5 laid on gravel, the length L of the legs 6 can also be greater than in the exemplary embodiment shown. The spaces between and next to the two legs 6 of the U-section 5 are at least partially filled with soil, gravel or the like.

In Fig. 2 ist ein durch ein T-Profil 7 gebildeter Träger für eine elastisch gelagerte - nicht dargestellte - Schiene dargestellt, der unmittelbar auf dem Erdreich 4 aufliegt und der zur Erhöhung seiner Biegesteifigkeit mit Beton 8 unterfüllt ist.In Fig. 2 is a support formed by a T-profile 7 for an elastically mounted - not shown - rail, which rests directly on the ground 4 and which is underfilled with concrete 8 to increase its bending rigidity.

Fig. 3 zeigt einen durch ein Doppel-T-Profil 9 gebildeten Träger. An das Doppel-T-Profil 9 ist eine querverlaufende Strebe 10 befestigt, dessen anderes Ende an dem die zweite Schiene des Gleises tragenden Träger befestigt ist.Fig. 3 shows a carrier formed by a double-T profile 9. A transverse strut 10 is fastened to the double-T profile 9, the other end of which is fastened to the support carrying the second rail of the track.

Einen durch Betonfertigteile 11 gebildeten Träger für eine elastisch gelagerte Schiene 1 zeigt Fig. 4, wobei die Betonfertigteile 11 auf dem Erdreich 4 verlegt sind, wobei über dem Erdreich 4 eine - nicht dargestellte - dünne Schicht aus feinkörnigem Splitt aufgebracht ist. Die Betonfertigteile 11 mit der Höhe H und der Breite B sind an ihrer Unterseite mit einer Ausnehmung 12 versehen. Durch diese Ausgestaltung des Trägers weist jedes Betonfertigteil 11 an seiner Unterseite je zwei Seitenflächen 13, 14 bzw. 15, 16 auf, die ein seitliches Verschieben der Betonfertigteile 11 unmöglich machen.4 shows a support formed by precast concrete elements 11 for an elastically mounted rail 1, the precast concrete elements 11 being laid on the ground 4, a thin layer (not shown) of fine-grained grit being applied over the ground 4. The precast concrete elements 11 with the height H and the width B are provided with a recess 12 on their underside. As a result of this configuration of the support, each precast concrete element 11 has two side surfaces 13, 14 and 15, 16 on its underside, which make it impossible to move the precast concrete elements 11 laterally.

Die in Fig. 5 dargestellten, durch Betonfertigteile 11 gebildeten Träger für die beiden - nicht dargestellten - elastisch gelagerten Schienen eines Gleises sind durch Streben 17 miteinander verbunden, die in bestimmten Abständen A hintereinander angeordnet sind. An der Oberseite der Betonfertigteile 11 sind Aussparungen 18 vorgesehen, in die - nicht dargestellte - Keile eingetrieben werden können, um eine vertikale Ausrichtung der Schienen zu bewirken.5, formed by precast concrete elements 11 for the two - not shown - elastically mounted rails of a track are connected to one another by struts 17 which are arranged at certain intervals A one behind the other. On the top of the precast concrete parts 11 there are recesses 18 into which wedges (not shown) can be driven in order to bring about a vertical alignment of the rails.

Claims (12)

  1. Foundation for railway tracks arranged level with the individual motor car traffic or arranged in tunnels, with the rails forming the track propping their lateral peripheries, situated beneath the rail head, up against the inner lateral peripheries of a frame making use of elastic intermediate plates, thus achieving such an elastic support that under the load of a passing rail car they will undergo a travel stroke of at least 3 mm, characterized by the fact that beneath each rail of the track a bending-resistant continuous beam is arranged in longitudinal direction.
  2. Foundation according to claim No. 1, characterized by the fact that the beam provided under the rail (1) is constituted by an U-section (5) with its open side down.
  3. Foundation according to claim No. 1, characterized by the fact that the beam provided under the rail (1) is constituted by a T-section (7) with the flange of the T-section (7) being arranged horizontally and facing the rail (1).
  4. Foundation according to claim No. 1, characterized by the fact that the beam provided under the rail (1) is constituted by a H-section (9) with the flanges of the H-section (9) being arranged horizontally.
  5. Foundation according to claims No.2, 3 or 4, characterized by the fact that the beam has been filled resp. underfilled with concrete.
  6. Foundation according to claim No. 1, characterized by the fact that the beam consists of precast concrete (11).
  7. Foundation according to claim No. 6, characterized by the fact that the height (H) of the precast concrete parts (11) at least corresponds to their width (B).
  8. Foundation according to claim No. 7, characterized by the fact that the minimum height of the precast concrete parts (11) is one and a half times their width (B).
  9. Foundation according to claims No. 6, 7 or 8, characterized by the fact that the bottom side of the precast concrete parts (11) is provided with a recess (12).
  10. Foundation according to one of the claims Nos. 1 through 9 characterized by the fact that the beams provided to be arranged beneath the two rails (1) of the track, are connected with each other by cross-struts (10, 17).
  11. Foundation according to claim No. 10, characterized by the fact that the distance (a) between the struts (17) is at least 3 metres.
  12. Foundation according to one of the claims No. 6 through 11 characterized by the fact that the upper side of the precast concrete parts (11) is provided with recesses (18) designed for driving-in wedges for the vertical alignment of the rails (1).
EP91914970A 1990-09-03 1991-08-27 Foundation for railway track Expired - Lifetime EP0547082B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4027836 1990-09-03
DE4027836A DE4027836A1 (en) 1990-09-03 1990-09-03 BASE FOR A TRACK FOR RAIL VEHICLES
PCT/EP1991/001630 WO1992004503A1 (en) 1990-09-03 1991-08-27 Foundation for railway track

Publications (2)

Publication Number Publication Date
EP0547082A1 EP0547082A1 (en) 1993-06-23
EP0547082B1 true EP0547082B1 (en) 1994-08-10

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DE (2) DE4027836A1 (en)
WO (1) WO1992004503A1 (en)

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DE8807195U1 (en) * 1988-06-01 1988-09-15 Trelleborg Gummiwerke Gmbh, 2351 Wasbek, De

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DE59102521D1 (en) 1994-09-15
WO1992004503A1 (en) 1992-03-19
EP0547082A1 (en) 1993-06-23
DE4027836A1 (en) 1992-03-05

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