CH621832A5

CH621832A5 - Railway sleeper

Info

Publication number: CH621832A5
Application number: CH959977A
Authority: CH
Inventors: Olaf Unbehauen
Original assignee: Matico Sa
Priority date: 1977-08-04
Filing date: 1977-08-04
Publication date: 1981-02-27

Abstract

The railway sleeper consists of two sleeper parts (4, 6) which are interconnected positively. The connection can be of hook-shaped (18) or articulated design. In the region of the connection, the sleeper parts have no bearing surfaces. The bearing surface of the sleeper parts present in the remaining region is arranged symmetrically in relation to the rail bearing surfaces (10, 11). In the event of damage to a sleeper part, the entire sleeper does not have to be exchanged, and furthermore transport is made considerably easier by virtue of the smaller dimensions and of the lower weight. <IMAGE>

Description

**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **. ** WARNING ** beginning of DESC field could overlap end of CLMS **.

PATENTANSPRÜCHE 1. Eisenbahnschwelle. dadurch gekennzeichnet, dass die Schwelle aus zwei formschlüssig miteinander verbundenen Schwellenteilen (4, 6) besteht. PATENT CLAIMS 1. Railway sleeper. characterized in that the threshold consists of two positively connected threshold parts (4, 6).

2. Eisenbahnschwelle nach Anspruch 1, dadurch gekennzeichnet, dass die Schwelle im Verbindungsbereich (8) zwischen beiden Schwellenteilen auflagerfrei ist. 2. Railway sleeper according to claim 1, characterized in that the threshold in the connection area (8) between the two sleeper parts is free of bearings.

3. Eisenbahnschwelle nach Anspruch 2, dadurch gekennzeichnet, dass jeder Schwellenteil (4, 6) in Schwellenrichtung symmetrisch zur Schienenauflagerfläche (10-12) zwei Schwel lenauflagerflächen (14, 16) gleicher Grösse aufweist. 3. Railway sleeper according to claim 2, characterized in that each sleeper part (4, 6) in the sleeper direction symmetrically to the rail support surface (10-12) has two sle len lenauflagerflächen (14, 16) of the same size.

4. Eisenbahnschwelle nach Anspruch 1 oder 3, dadurch gekennzeichnet, dass jeder Schwellenteil zwei in Schienenlängsrichtung hintereinander angeordnete Schienenauflagerflächen (10, 11 bzw. 12, 13) aufweist. 4. Railway sleeper according to claim 1 or 3, characterized in that each sleeper part has two rail support surfaces (10, 11 or 12, 13) arranged one behind the other in the longitudinal direction of the rail.

5. Eisenbahnschwelle nach Anspruch 1, dadurch gekennzeichnet, dass die formschlüssige Verbindung eine Hakenverbindung (18) ist, deren Haken (20, 22) in der Ebene des Gleisrostes gekrümmt sind. 5. Railway sleeper according to claim 1, characterized in that the positive connection is a hook connection (18) whose hooks (20, 22) are curved in the plane of the track grate.

6. Eisenbahnschwelle nach Anspruch 1, dadurch gekennzeichnet, dass die formschlüssige Verbindung aus einem Zapfengelenk (30) besteht. 6. Railway sleeper according to claim 1, characterized in that the positive connection consists of a pin joint (30).

7. Eisenbahnschwelle nach Anspruch 6, dadurch gekennzeichnet, dass der Zapfen (36) des Zapfengelenks einen eckigen Horizontalquerschnitt aufweist. 7. Railway sleeper according to claim 6, characterized in that the pin (36) of the pin joint has an angular horizontal cross section.

Eisenbahnschwellen, die zur Aufnahme, Verteilung und Übertragung von Kräften bestimmt sind, bilden zusammen mit den Schienen, mit denen sie durch Befestigungsmittel verbunden sind, einen Gleisrost, der in bekannter Ausführung ein praktisch rahmensteifes Element bildet und die Kräfte auf das Schotterbett bzw. den Untergrund weiterleitet. Railway sleepers, which are intended to absorb, distribute and transmit forces, together with the rails to which they are connected by means of fasteners, form a track grate which, in a known design, forms a practically rigid element and the forces on the ballast bed or the ground forwards.

Gemäss der vorliegenden Erfindung wird eine Eisenbahnschwelle vorgeschlagen, die aus zwei formschlüssig miteinander verbundenen Schwellenteilen besteht. Dies hat den Vorteil, dass auf einen Schwellenteil wirkende Vertikalkräfte oder Torsionen sich nicht zu dem anderen Schwellenteil und dessen Schienenauflager übertragen. Trotzdem wird der Abstand zwischen den Schienen durch die Schwelle gewährleistet und quer zur Schiene wirkende Horizontalkräfte vom einen Schwellenteil auf den anderen übertragen. Es ergibt sich somit eine Funktionstrennung zwischen beiden Schwellenteilen, die jeweils einer Schiene zugeordnet sind. Bei Beschädigung eines Schwellenteiles muss nicht die gesamte Schwelle ausgewechselt werden und der Transport der einzelnen Schwellenteile ist aufgrund der geringeren Abmessungen und des geringeren Gewichtes wesentlich erleichtert.Weiterhin ist bei Betonschwellen in Längsrichtung der Schwellenteile keine Vorspan nung erforderlich. According to the present invention, a railway sleeper is proposed which consists of two sleeper parts which are positively connected to one another. This has the advantage that vertical forces or torsions acting on one sleeper part are not transmitted to the other sleeper part and its rail supports. Nevertheless, the distance between the rails is guaranteed by the sleeper and horizontal forces acting transversely to the rail are transmitted from one sleeper part to the other. This results in a separation of functions between the two threshold parts, each of which is assigned to a rail. If a sleeper part is damaged, the entire sleeper does not have to be replaced and the transport of the individual sleeper parts is made considerably easier due to the smaller dimensions and the lower weight. Furthermore, in the case of concrete sleepers in the longitudinal direction of the sleeper parts, no preload is required.

In vorteilhafter Ausführungsform der Schwelle hat jeder Schwellenteil beidseitig des Schienenauflagerbereiches gleich grosse Schwellenauflagerflächen, so dass bei Vertikalbelastung des Schwellenteiles eine gleichmässige Flächenpressung auf das Schotterbett bzw. den Untergrund wirkt und keine Kippkräfte auftreten. In an advantageous embodiment of the sleeper, each sleeper part has equally large sleeper support surfaces on both sides of the rail support area, so that when the sleeper part is loaded vertically, a uniform surface pressure acts on the ballast bed or the subsurface and no tilting forces occur.

Im folgenden wird die Erfindung anhand von in den Zeichnungen dargestellten Ausführungsbeispielen erläutert. Es zeigt: Fig. 1 eine Aufsicht auf eine Eisenbahnschwelle, Fig. 2 eine Vorderansicht der Schwelle nach Fig. 1, Fig. 3 eine andere Ausführungsform der Verbindung zwischen zwei Schwellenteilen, Fig. 4 einen in Schienenlängsrichtung verlaufenden Vertikalschnitt durch die Verbindung nach Fig. 3, Fig. 5 ein drittes Ausführungsbeispiel einer Verbindung zwischen zwei Schwellenteilen, und Fig. 6 einen vertikalen Längsschnitt durch die Verbindung nach Fig. 5. The invention is explained below with reference to exemplary embodiments shown in the drawings. It shows: 1 is a plan view of a railroad tie, 2 is a front view of the threshold of FIG. 1, 3 shows another embodiment of the connection between two threshold parts, 4 shows a vertical section running in the longitudinal direction of the rail through the connection according to FIG. 3, Fig. 5 shows a third embodiment of a connection between two threshold parts, and 6 shows a vertical longitudinal section through the connection according to FIG. 5.

Die Schwelle 2 nach Fig. 1 bzw. 2 hat zwei Schwellenteile 4, 6, die miteinander formschlüssig oder gelenkig verbunden sind. The threshold 2 according to FIGS. 1 and 2 has two threshold parts 4, 6, which are connected to one another in a form-fitting or articulated manner.

In dem mit der Ziffer 8 bezeichneten Verbindungsbereich hat die Schwelle keine Schwellenauflagerflächen, während jeder Schienenteil symmetrisch zu den Schienenauflagerflächen 10 bis 13 je eine Schwellenauflagerfläche 14, 16 gleicher Grösse aufweist. In the connection area designated by the number 8, the sleeper has no sleeper support surfaces, while each rail part has a sleeper support surface 14, 16 of the same size symmetrically to the rail support surfaces 10 to 13.

Beim Ausführungsbeispiel nach den Fig. 1 und 2 besteht die formschlüssige Verbindung zwischen beiden Schwellenteilen 4, 6 aus einer Hakenverbindung 18, wobei die gegenseitig ineinandergreifenden Hakenteile 20, 22 beider Schwellenteile in der Ebene des Gleisrostes gekrümmt sind und eine unbehinderte gegenseitige Vertikalverschiebung der Schwellenteile gegeneinander zulassen. Der Abstand zwischen beiden Schwellenteilen und damit der Gleisabstand ist garantiert und ausserdem wird eine wesentliche Winkelbewegung zwischen beiden Schwellenteilen unmöglich gemacht. Dadurch, dass jeder Schwellenteil 4, 6 in Schienenrichtung jeweils zwei hintereinander angeordnete Schienenauflager hat, ist jeder Schwellenteil ohnehin gegen Verdrehung um eine vertikale Achse zusätzlich gesichert.Die Profilierung 24 der Schwellenauflagerflächen 14, 16 sowie die kammerartigen Aussparungen 26, 28 bewirken ausserdem eine Sicherung der Lage der Schwellenteile im nicht dargestellten Schotterbett. In the embodiment according to FIGS. 1 and 2, the positive connection between the two sleeper parts 4, 6 consists of a hook connection 18, the mutually interlocking hook parts 20, 22 of both sleeper parts being curved in the plane of the track grating and allowing an unobstructed mutual vertical displacement of the sleeper parts against one another . The distance between the two sleeper parts and thus the distance between the tracks is guaranteed and, moreover, a substantial angular movement between the two sleeper parts is made impossible. The fact that each sleeper part 4, 6 has two rail supports arranged one behind the other in the rail direction means that each sleeper part is additionally secured against rotation around a vertical axis. The profile 24 of the sleeper support surfaces 14, 16 and the chamber-like recesses 26, 28 also ensure that the Location of the sleeper parts in the ballast bed, not shown.

Die Teildarstellungen der Fig. 3 und 4 zeigen ein Ausführungsbeispiel der formschlüssigen Verbindung zwischen beiden Schwellenteilen 4', 6', die aus einem Zapfengelenk 30 besteht, wobei an der Unterseite des einen Schwellenteiles 4 ein Zapfen 32 angeformt ist, der in eine entsprechend geformte Aussparung 34 des anderen Schwellenteiles 6 eingreift. The partial representations of FIGS. 3 and 4 show an embodiment of the positive connection between the two threshold parts 4 ', 6', which consists of a pin joint 30, a pin 32 being formed on the underside of the one threshold part 4, which in a correspondingly shaped recess 34 of the other threshold part 6 engages.

Das Ausführungsbeispiel nach den Fig. 5 und 6 ist ähnlich dem Ausführungsbeispiel nach den Fig. 3 und 4, mit dem Unterschied, dass statt eines im Querschnitt runden Zapfens ein sich vertikal nach unten erstreckender Fortsatz 36 mit rechteckförmigem Horizontalquerschnitt an einem Schwellenteil 4" vorgesehen ist, der in eine entsprechend geformte Aussparung 38 des anderen Schwellenteiles 6'i eingreift. Diese Querschnittsform des Fortsatzes bildet ebenfalls eine Sicherung gegen Verdrehung beider Schwellenteile zueinander. The exemplary embodiment according to FIGS. 5 and 6 is similar to the exemplary embodiment according to FIGS. 3 and 4, with the difference that instead of a pin which is round in cross section, an extension 36 with a rectangular horizontal cross section extending vertically downward is provided on a sleeper part 4 ″ , which engages in a correspondingly shaped recess 38 of the other sleeper part 6'i. This cross-sectional shape of the extension likewise forms a safeguard against rotation of the two sleeper parts with respect to one another.

Die Schwellenteile sind insbesondere für die Herstellung aus Beton oder Kunststoff bzw. aus Beton mit Kunststoff als Bindemittel geeignet. Es können jedoch auch andere Werkstoffe, wie z.B. Stahl, verwendet werden. The threshold parts are particularly suitable for the production from concrete or plastic or from concrete with plastic as a binder. However, other materials such as e.g. Steel.

Claims

PATENT CLAIMS

1. Railway sleeper. characterized in that the threshold consists of two positively connected threshold parts (4, 6).

2. Railway sleeper according to claim 1, characterized in that the threshold in the connection area (8) between the two sleeper parts is free of bearings.

3. Railway sleeper according to claim 2, characterized in that each sleeper part (4, 6) in the sleeper direction symmetrical to the rail support surface (10-12) has two sle len lenauflagerflächen (14, 16) of the same size.

4. Railway sleeper according to claim 1 or 3, characterized in that each sleeper part has two rail support surfaces (10, 11 or 12, 13) arranged one behind the other in the longitudinal direction of the rail.

5. Railway sleeper according to claim 1, characterized in that the positive connection is a hook connection (18) whose hooks (20, 22) are curved in the plane of the track grate.

6. Railway sleeper according to claim 1, characterized in that the positive connection consists of a pin joint (30).

7. Railway sleeper according to claim 6, characterized in that the pin (36) of the pin joint has an angular horizontal cross section.

Railway sleepers, which are intended to absorb, distribute and transmit forces, together with the rails to which they are connected by means of fasteners, form a track grate which, in a known design, forms a practically rigid element and the forces on the ballast bed or the ground forwards.

According to the present invention, a railway sleeper is proposed which consists of two sleeper parts which are positively connected to one another. This has the advantage that vertical forces or torsions acting on one sleeper part are not transmitted to the other sleeper part and its rail supports. Nevertheless, the distance between the rails is guaranteed by the sleeper and horizontal forces acting transversely to the rail are transmitted from one sleeper part to the other. This results in a separation of functions between the two threshold parts, each of which is assigned to a rail. If a sleeper part is damaged, the entire sleeper does not have to be replaced and the transport of the individual sleeper parts is made considerably easier due to the smaller dimensions and the lower weight. Furthermore, in the case of concrete sleepers in the longitudinal direction of the sleeper parts, no preload is required.

In an advantageous embodiment of the sleeper, each sleeper part has equally large sleeper support surfaces on both sides of the rail support area, so that when the sleeper part is loaded vertically, a uniform surface pressure acts on the ballast bed or the subsurface and no tilting forces occur.

The invention is explained below with reference to exemplary embodiments shown in the drawings. It shows: 1 is a plan view of a railroad tie, 2 is a front view of the threshold of FIG. 1, 3 shows another embodiment of the connection between two threshold parts, 4 shows a vertical section running in the longitudinal direction of the rail through the connection according to FIG. 3, Fig. 5 shows a third embodiment of a connection between two threshold parts, and 6 shows a vertical longitudinal section through the connection according to FIG. 5.

The threshold 2 according to FIGS. 1 and 2 has two threshold parts 4, 6, which are connected to one another in a form-fitting or articulated manner.

In the connection area designated by the number 8, the sleeper has no sleeper support surfaces, while each rail part has a sleeper support surface 14, 16 of the same size symmetrically to the rail support surfaces 10 to 13.

In the embodiment according to FIGS. 1 and 2, the positive connection between the two sleeper parts 4, 6 consists of a hook connection 18, the mutually interlocking hook parts 20, 22 of both sleeper parts being curved in the plane of the track grating and allowing an unobstructed mutual vertical displacement of the sleeper parts against one another . The distance between the two threshold parts and thus the distance between the tracks is guaranteed and, moreover, a substantial angular movement between the two threshold parts is made impossible. The fact that each sleeper part 4, 6 has two rail supports arranged one behind the other in the direction of the rail means that each sleeper part is additionally secured against rotation around a vertical axis Location of the sleeper parts in the ballast bed, not shown.

The partial representations of FIGS. 3 and 4 show an embodiment of the positive connection between the two threshold parts 4 ', 6', which consists of a pin joint 30, a pin 32 being formed on the underside of the one threshold part 4, which in a correspondingly shaped recess 34 of the other threshold part 6 engages.

The exemplary embodiment according to FIGS. 5 and 6 is similar to the exemplary embodiment according to FIGS. 3 and 4, with the difference that instead of a pin which is round in cross section, an extension 36 with a rectangular horizontal cross section extending vertically downward is provided on a sleeper part 4 ″ , which engages in a correspondingly shaped recess 38 of the other sleeper part 6'i. This cross-sectional shape of the extension likewise forms a safeguard against rotation of the two sleeper parts with respect to one another.

The threshold parts are particularly suitable for the production from concrete or plastic or from concrete with plastic as a binder. However, other materials such as e.g. Steel.

** WARNING ** End of CLMS field could overlap beginning of DESC **.