EP2329079B1 - Track supporting layer - Google Patents

Description

The invention relates to a track plate, which is adapted to form a base for the rails of a track in a row with such successively arranged track support plates, which track plate plate on its upper side groove-like channels for receiving straight rails of the track and extending in the track longitudinal side surfaces and this has transversely extending end faces, which are arranged to be facing in the series of track-supporting plates to the end faces of subsequent track-slabs.

Such track slabs (cf., eg DE 20 2007 001 163 U1 . EP 1 533 420 A2 . US 5,988,519 . DE 1 935 531 B1 and JP 2008-127900 ) may be provided instead of sleepers as the basis for the rails of tracks, which usually requires less maintenance than threshold-supported tracks, because even with heavy loads hardly comes to a sinking of the plates in their bedding. Moreover, the top of such track slabs can directly form a traffic area for traffic and / or pedestrian traffic. It is also known to provide a same arcuate course for the groove-like channels and rails received therein.

It is an object of the present invention to provide a track plate of the kind mentioned in the opening paragraph which can be used in various forms of tracks to form the rail-carrying base of these tracks.

The track plate of the invention mentioned above is characterized in that the track plate, seen in plan view, has the shape of an isosceles trapezoid whose legs define the course of the two end faces, and whose mutually parallel sides define the course of the two side surfaces that the groove-like Channels, kinked from the one face of the track plate to the other end face or arcuate, wherein the respective kinked or arcuate channel is adapted to receive the cross section of a straight rail of the track, and that, seen in plan view, the concave side of the Recording the rails provided channels facing the shorter side surface of the track plate.

Through this training, the above-mentioned objective can be well met. This track plate can be used both as a basis for straight track sections as well as a basis for arcuate track tracks use, with a single design of such track slabs an important in practice range of radii of curvature can be taken into account. As a basis for straight track sections can thereby form a series, as mentioned above, formed track slabs, wherein in this row successive plates are turned to each other by 180 ° with respect to a plane perpendicular to the plate surface geometric axis. To form a base for arcuately extending track sections, such track slabs can be arranged in a row in the same direction, wherein the arcuate outboard side edge of the series is formed by the long side edges of the individual plates and the inner edge of the sheet through the short side edges of the individual plates is formed.

A preferred embodiment of the track base plate according to the invention, which is advantageous for the dimensioning of the distances between the rail head and the lateral edges of the channels and thus also for the design of the flange groove, is characterized in that the cross section of the channels provided for receiving the rails in the area is narrowed to the top of the track plate, which at this area down then this cross section widens by undercut on the side surfaces of these channels. This results in a favorable embodiment, when the side surfaces of the channels provided for receiving the rails from the intended in the top of the track plate narrowing downwards initially inclined relative to the center of the respective channel outward and then on to the sole of the respective channel down sloping down. A variant which gives a broad sole surface for the channels provided for receiving the rails is characterized in that in that the side surfaces of the channels provided for receiving the rails run away from the narrowing provided in the area of the upper side of the track plate in a downward direction with respect to the center of the respective channel, sloping towards the sole of the respective channel. Another favorable embodiment, which is also favorable for the accommodation of relatively highly trained rail fastening clamps, is characterized in that the side surfaces of the channels provided for receiving the rails of the measures provided for in the region of the top of the track plate plate narrowing down first, first with respect to the center of the respective Channel horizontally outward and then continue to the bottom of the respective channel sloping down. A further variant with regard to the cross section of the channels provided for receiving the rails is characterized in that the side surfaces of the channels provided for receiving the rails extend downward from the narrowing provided in the region of the upper side of the track plate, widening like a vault with respect to the center of the respective channel , to the sole. This variant is in terms of the load capacity of the top of the track plate, which top can form a traffic area advantage.

For the positioning and positional adjustment of the track plate to each other, it is also advantageous if it is provided that, starting from the top of the track plate, at both end faces of the track plate each one provided in the middle between the channels provided for receiving the rails channels marking groove is provided.

For height leveling and for fixing the mutual positions of track supports successively arranged in a row, it is advantageous to provide grooves extending in the longitudinal direction of the track plate plates on the side surfaces of the track plate plates, adjacent to the end surfaces Grooves for mutual height leveling and connection of successively arranged track plate serving wedges are inserted.

As mentioned above, the top of the invention formed track slabs form a traffic surface, which is often the There is a need to connect such traffic track plates side more traffic areas, for example, the formation of railroad level crossings. It is for the connection of the layer structure of traffic areas, for example of asphalt concrete layers, on the side surfaces of track slabs here in question standing type, advantageous if it is provided that the side surfaces of the track plate, starting from the top of the track plate initially a steeply sloping Zone and then have a shallow sloping outward zone.

For attaching rails to the track base plates, it is advantageous to provide fastening elements for fixing the rails to the sole of the channels provided for receiving the rails. However, other measures for fixing the rails may be provided, e.g. the use of sprues that fix the rails in the channels intended for their reception.

The sole of the channels provided for receiving the rails may be substantially flat or also laterally inclined, e.g. to get an inclination of the rails. Such an inclination can also be provided only in a portion of the sole in which the relevant rail rests. Also, a recessed rail bed may be provided in a portion of the sole for supporting the rails.

The invention will now be further explained by way of example with reference to the drawing, in which such examples are shown schematically.

In the drawing shows Fig. 1 An embodiment of an inventively designed track plate in plan view, and it shows Fig. 2 an end view of in Fig. 1 illustrated track plate; Fig. 3 shows in plan view another embodiment of an inventively designed track support plate; Fig. 4 shows in plan view a group of inventively designed track slabs, which are arranged in the form of a series consecutively to form the base of a straight track section, and it shows Fig. 5 in plan view, a series of inventively formed track slabs, which subsequently form a base for an arcuately running track section in a polygonal manner; Fig. 6 shows a side view of a series of inventively designed track slabs; Fig. 7 shows the region of a serving for receiving a rail of a track channel of an inventively designed track support plate in section; and they show that FIGS. 8, 9 and 10 each in one Fig. 7 analog sectional representation variants to the in Fig. 7 illustrated example.

Fig. 1 shows an embodiment of an inventively designed track support plate 1, which has the shape of an isosceles trapezoid whose legs define the course of the two end faces 2, 3 of this track plate and its mutually parallel sides the course of the two extending in the track longitudinal direction 4 side surfaces 5, 6 of the track plate define. The end faces 2, 3 are facing in an arrangement of a plurality of track slabs in the form of a series of successively arranged track slabs of each subsequent in the series to the respective track plate plate track plate. The track plate 1 has on its upper side 7, two groove-like channels 8 for receiving rails of a track, wherein such rails 9, which are inserted into said channels 8, in Fig. 1 and Fig. 2 are shown schematically.

The groove-like channels 8, which extend from the one end face 2 to the other end face 3 of the track base plate 1, have a kinked course, wherein in the middle of its longitudinal extent the deviation 11 from the respective chord axis 10, which extends in the longitudinal direction 4, is greatest , It is in the drawing in the interest of a good recognizability, the extent of this deviation, which results from the kinked course of the channels 8, much larger than shown in the practical embodiment.

The see-through cross section 13 of the respective channel 8 to be seen by an end face 2 of the track base plate 1 when viewed in the direction of the arrow 12 experiences an optical through the kinked channel course through the side surfaces 14, 15 of the channel 8 Narrowing. By selecting the dimensions of the respective channel 8, the see-through cross section 13 is dimensioned so that it can accommodate the cross-section of a rail 9 of the track in itself, so that such a straight rail in the respective kinked extending channel 8 can be inserted.

It is seen in plan view, the concave side 16 of the course of the channels 8 of the shorter side surface 6 of the track plate 1 faces.

At the two end faces 2, 3 of the track base plate 1 Markierungsnuten 17, 18 are provided, these Markierungsnuten go out from the top 7 of the track plate and are arranged in the middle between the channels 8.

Fig. 3 shows a variant of the in Fig. 1 illustrated embodiment of an inventive track support plate, wherein in this variant, the channels 8 extend arcuately from the end face 2 to the end face 3 of the track plate. Details which to details of the embodiment according to Fig. 1 are analogous, are designated by the same reference numerals.

The side surfaces 5, 6 of the track base plate 1, starting from the top side 7 of the track base plate initially a steeply sloping zone 22 and then a shallow sloping outward zone 23. This is advantageous for the connection of road surfaces, especially if they are made of asphalt concrete.

Fig. 4 shows in plan view a series 27 of inventively designed track support plates 1, 1 ', which are arranged to form a base for a straight running track next to each other, wherein the facing end faces 2,3 successively arranged track slabs are adjacent to each other. The following each in a row on a track plate plate track plate is disposed about a perpendicular to the plate surface extending geometric axis 26 by 180 ° with respect to the first-mentioned track plate, and it is in this way the present with respect to a geometric center line 20 of the track slabs adjacent to each other End faces 2, 3 compensated and obtained a straight course of the row 27, which corresponds to a straight course of a track whose rails are received in the channels 8 of the row 27 forming track supporting plates. It follows both at one side edge 28 and at the other side edge 29 of the row 27 alternately long side surfaces 5 and short side surfaces 6 of the individual track base plates 1, 1 'successive and the side edges 28, 29 extend along straight lines.

Fig. 5 shows, again in plan view, a series 27 'of inventively designed track base plates 1, wherein in this series 27', unlike the in Fig. 4 shown row 27, the track carrier plates follow each other in the same position. The one side edge 28 'of the row 27' is formed by the long side surfaces 5 of the individual track slabs 1 and the other side edge 29 'of the row 27' by the short side surfaces 6 of the individual track slabs 1. Thus, the trapezoidal shape of the adjacent with their faces 2, 3 track support plates 1 a polygonal curved row 27 'is formed, which can be inserted into the channels 8 of the train forming this series track curved rails of an arcuate track.

Thus, the formation of track slabs according to the invention using a plate form makes it possible to form both a base for straight tracks and a base for arcuately running track sections.

For mutual leveling of the track slabs when joining a series of adjoining slabs and forming a cohesion under the slabs of such a series is preferably on the side surfaces 5, 6 of the slats, the front surfaces 2, 3 of the same, then longitudinally extending grooves 19 before , in which wedges 21 are fittingly inserted, bridging the joint between the adjoining plates. This is in the 4 and 5 indicated and in Fig. 6 shown in more detail and in Fig. 2 indicated by dashed lines as an optional measure. By providing suitably shaped inclined surfaces on the grooves 19 and / or on the wedges 21 can be merging, contracting, Positional aligning or leveling and cohesive forces are brought into effect.

The rails 9 to be inserted in the channels 8 of the track plate can be fastened or fixed in these channels in various ways. A preferred embodiment provides to arrange at the sole of the channels provided for receiving the rails 8 mounting clamps for fixing the rails. However, other techniques are applicable, e.g. Injection masses which adhere to the walls of the channels and adhere to the rails and / or enclose the rails. It is possible to use preferably elastic sprues, e.g. Composite materials of cork particles and an elastomer; It is also possible for the masses to match their properties with granular rigid particles, such as e.g. Sands, admit.

The cross-sectional shape of the channels 8 can be chosen taking into account the respective rail cross-section and the respective fastenings for the rails under various possibilities, and it is also possible to provide different cross-sectional shapes at different points in the longitudinal extent of these channels, e.g. at locations where fasteners are to be located, both space being kept clear in the channels for the placement of the fasteners and, if necessary, free access to actuators, e.g. Adjusting screws, which are present on the fasteners to allow. Corresponding extensions of the channels can, viewed in the longitudinal direction of the channels, be relatively short.

It is often favorable to choose a cross-sectional shape for the channels provided for receiving the rails, which is narrowed in the area of the upper side of the track slabs and which subsequently widens downwards at this narrowed area by undercut on the side surfaces of these channels. Embodiments of this kind are in the FIGS. 7, 8, 9 and 10 shown.

Fig. 7 shows a provided in a track plate 1 channel 8, in the region of the top 7 of the track plate a Has constriction 25 and its side surfaces 31, 32 of this narrowing downwards initially inclined with respect to the center 33 of the channel 8 to the outside and then continue to the sole 24 sloping downwards. The inserted into the channel 8 rail 9 is fixed with an elastic sprue mass 34.

Fig. 8 shows a channel provided in a track plate 1 8, which has a constriction 25 in the region of the top 7 of the track plate, from which the side surfaces 31, 32 of the channel with respect to the center 33 inclined sloping towards the sole 24 extend. In the channel 8, a rail 9 is arranged, which is fixed with a fastening element 35. This fastening element 35 has clamping screws 36.

Fig. 9 shows a channel 8 provided in a track plate 1, which has a constriction 25 in the region of the top 7 of the track plate, from the downwards the side surfaces 31, 32 of the channel first horizontally outward with respect to the center 33 of the channel and then on to the sole 24 of the channel sloping down. On the sole 24 wedges 37 are arranged, which cause a lateral inclination of the rails. Alternatively, one can form the sole 24, at least in a partial area, laterally inclined.

Fig. 10 shows a provided in a track plate 1 channel 8, which has a constriction 25 in the region of the top 7 of the track plate, from the down side surfaces 31, 32, with respect to the center 33 of the channel 8 widening arch, extend to the sole 24. The sole 24 has a recessed rail bed 38 for supporting the rails.

Claims (15)

1. A track-supporting layer (1, 1') arranged to form in a series of such consecutively arranged track-supporting layers a base for the rails of a track, which track-supporting layer comprises groove-like channels (8) on its upper surface for receiving straight rails of the track as well as side faces (5, 6) extending in the longitudinal direction (4) of the track and end faces (2, 3) extending transversely thereto, which are arranged to face the end faces of adjoining track-supporting layers in the series of track-supporting layers (1; 1'), characterized in that the track-supporting layer (1), seen in top view, has the shape of an isosceles trapezoid whose legs define the courses of the two end faces (2, 3) and whose mutually parallel sides define the courses of the two side faces (5, 6), that the groove-like channels (8) extend from one end face (2) of the track-supporting layer to the other end face (3) thereof in a bent or arched course, wherein the respective channel (8) extending in a bent or arched course is arranged to receive the cross section of a straight rail (9) of the track, and that the concave side (16) of the course of each of the channels (8) provided for receiving the rails faces the shorter side face (6) of the track-supporting layer (1), seen in top view.
2. A track-supporting layer according to claim 1, characterized in that the cross sections of the channels (8) provided for receiving the rails are constricted in the region of the upper surface (7) of the track-supporting layer (1), said cross sections widening downwardly adjacent said region due to undercuts on the side faces of these channels.
3. A track-supporting layer according to claim 2, characterized in that the side faces (31, 32) of the channels (8) provided for receiving the rails, downwardly from the constriction (25) located in the region of the upper surface (7) of the track-supporting layer (1), extend in a manner initially inclined outwardly relative to the center (33) of the respective channel (8) and then falling off downwardly towards to the bottom (24) of the respective channel.
4. A track-supporting layer according to claim 2, characterized in that the side faces (31, 32) of the channels (8) provided for receiving the rails, downwardly from the constriction (25) located in the region of the upper surface (7) of the track-supporting layer (1), extend to fall off towards the bottom (24) of the respective channel in a manner outwardly inclined relative to the center (33) of the respective channel (8).
5. A track-supporting layer according to claim 2, characterized in that the side faces (31, 32) of the channels (8) provided for receiving the rails, downwardly from the constriction (25) located in the region of the upper surface (7) of the track-supporting layer (1), extend initially horizontally outwardly relative to the center (33) of the respective channel (8) and then in a manner falling off downwardly towards the bottom (24) of the respective channel.
6. A track-supporting layer according to claim 2, characterized in that the side faces (31, 32) of the channels (8) provided for receiving the rails, downwardly from the constriction (25) located in the region of the upper surface (7) of the track-supporting layer (1), extend to the bottom (24) by widening in an arched manner relative to the center (33) of the respective channel (8).
7. A track-supporting layer according to any one of claims 1 to 6, characterized in that, departing from the upper surface (7) of the track-supporting layer (1), a marker groove (17, 18) is each provided on the two end faces (2, 3) of the track-supporting layer (1) in the middle between the channels (8) provided for receiving the rails.
8. A track-supporting layer according to any one of claims 1 to 7, characterized in that the side faces (5, 6) of the track-supporting layer (1), departing from the upper side (7) of the track-supporting layer, have an initially steeply sloping zone (22) which is followed by a more flatly sloping and outwardly directed zone (23).
9. A track-supporting layer according to any one of claims 1 to 8, characterized in that fastening elements (35) for fixing the rails are provided on the bottoms (24) of the channels (8) provided for receiving the rails.
10. A series of consecutively arranged track-supporting layers according to one or several of claims 1 to 9, characterized in that each track-supporting layer (1') following a track-supporting layer (1) is arranged in a manner turned by 180° relative to the latter track-supporting layer, about a geometric axis (26) extending perpendicularly to the layer surface, such that, on the side edges (28, 29) of the series (27) of track-supporting layers (1, 1'), short side faces (6) of track-supporting layers and long side faces (5) of track-supporting layers follow each other alternatingly and the side edges (28, 29) of the series (27) extend along straight lines.
11. A series of consecutively arranged track-supporting layers according to one or several of claims 1 to 9, characterized in that one side edge (28') of the series (27') is formed by the long side faces (5) of the individual track-supporting layers (1), while the other side edge (29') of the series (27') is formed by the short side faces (6) of the individual track-supporting layers, and the track-supporting layers (1) of the series (27') thus together form a polygonally curved base for the rails of a track.
12. A series of consecutively arranged track-supporting layers according to one or several of claims 1 to 9, characterized in that grooves (19) extending in the longitudinal direction of the track-supporting layers (1) are provided on the side faces (5, 6) of the track-supporting layers in a manner adjoining the end faces (2, 3), and wedges (21) serving for mutually levelling the heights of, and connecting, consecutively arranged track-supporting layers are further inserted in said grooves.
13. A series of consecutively arranged track-supporting layers according to one or several of claims 10 to 12, characterized in that, on the first and/or last track-supporting layer (1, 1') of the series (27; 27'), the channels (8) provided for receiving the rails comprise horizontally enlarged widenings (30) on their ends located on the free end faces (2, 3).
14. A track-supporting layer according to any one of claims 1 to 9, characterized in that the bottoms (24) of the channels (8) provided for receiving the rails extend to be laterally inclined at least over a portion, or wedges (37) providing lateral inclinations of the rails are arranged on the bottoms (24) of the channels (8).
15. A track-supporting layer according to any one of claims 1 to 9 or 14, characterized in that the bottom (24) has a deepened rail bed (38) for mounting a rail (9).

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