WO2006029803A1

WO2006029803A1 - Arrangement for guiding a rail on a concrete sleeper

Info

Publication number: WO2006029803A1
Application number: PCT/EP2005/009812
Authority: WO
Inventors: Hans-Ulrich Dietze; Axel Siebert
Original assignee: Bwg Gmbh & Co Kg; Vae Gmbh
Priority date: 2004-09-14
Filing date: 2005-09-13
Publication date: 2006-03-23
Also published as: DE102004044869B4; EP1789629A1; KR20070053807A; DE102004044869A1; TW200613613A

Abstract

The invention relates to an arrangement for guiding a rail which is to be secured (20) on a concrete sleeper (16), comprising guide plates (10, 12) that run along the respective rail flange edges (28, 30) and seats (18, 20) arranged in the concrete sleeper for receiving said guide plates. Each seat is configured as an insert (18, 20) imbedded in the concrete sleeper (16) with the aim of achieving the precise arrangement of the guide plates (10, 12). According to the invention, said insert is provided with a base body which has the form of a hollow cube and is open at its top, configured to receive the guide plate (10, 12) partially and in a positive fit. A sleeve provided for receiving the shank (62, 64) of a screw element (24, 26) which is configured to connect the guide plate (10, 12) to the concrete sleeper extends from the base body.

Description

ARRANGEMENT FOR GUIDING A RAIL ON A CONCRETE SILL

The invention relates to an arrangement for guiding a rail to be fastened on a concrete sleeper comprising guide plates running along the respective rail foot edge and receptacles for the guide plates formed in the concrete sleeper. Furthermore, the invention relates to a method for producing a plurality of concrete sleepers in a long bed comprising a formwork having a cuboid geometry and having a base wall from which shearable receptacles for guide plates which can be arranged on the concrete sleeper emanate, tension wires running in the longitudinal direction of the formwork after pouring and setting the concrete.

Thresholds running in the switch area have different lengths depending on the course of the rails. To produce appropriate concrete sleepers, several sleepers are cast simultaneously in a long bed, the desired lengths being specified by separating plates. The concrete sleepers themselves are manufactured using the fitted bed process, i.e. To absorb the main bending moment in the longitudinal axis, wires such as steel wires are tensioned, which are pre-tensioned on the formwork walls before concreting. After the concrete has set, the wires are then severed, with the result that the individual concrete thresholds are displaced relative to one another.

CONFIRMATION COPY If rail sections are guided over angular guide plates, forms with V-shaped projections must be connected to the formwork, which form grooves running transversely to the longitudinal direction of the concrete sleeper, into which the angle guide plates engage in a form-fitting manner. As a result of the V-shaped projections, the thresholds experience a component which is directed away from the floor after the tensioning wires have been cut through, with the result that the thresholds quasi “migrate”, which means that there is a risk that if the molds are not removed from the bottom wall formwork are sheared off, tear out the edges of the corresponding depressions in the concrete sleeper.

Prestressed concrete sleepers and processes for their production are described, for example, in DE-C-29 48 303, DE-C-199 02 367, DE-U-297 10 219 or DE-C-41 43 190.

The present invention is based on the object of developing an arrangement of the type mentioned at the beginning and a method for producing a concrete sleeper in such a way that the depressions in the concrete sleeper receiving the guide plates are not damaged when the concrete sleeper is being manufactured. Furthermore, it should be ensured that the guide plates can be positioned precisely in the concrete sleeper, so that an exact guidance of the rail is ensured.

In an arrangement of the type mentioned at the outset, the object is essentially achieved in that the receptacle contains an insert that is concreted into the concrete sleeper with a hollow cuboid-shaped base body that is open at the top in sections and a sleeve that extends from it to receive a shaft of the guide plate with the concrete sleeper connecting screw element. Deviating from the known prior art, the guide plate is received by a separate insert which is cast in the concrete sleeper and thus concreted in. This ensures exact positioning of the guide plate. At the same time, the geometry of the insert ensures that there is no relative displacement between the insert and the concrete sleeper when the tensioning wires are cut. For this purpose, it is also provided in particular that the base body has side walls extending transversely to the longitudinal axis of the concrete sleeper, each of which encloses an angle α with - 30 ° <α <+ 30 ° to the central axis of the concrete sleeper, in particular parallel or approximately parallel to the central axis. Thus, due to the geometry of the side walls, the concrete sleepers which move along the formwork when the tensioning wires are cut through cannot act on the concrete sleepers by means of vertically directed force components which lead to the concrete sleepers moving upward.

The guide plate itself consists of a parallelepiped-shaped base section running along the top of the concrete sleeper and a molding attachment which starts from the bottom side thereof and is positively received by the base body of the insert.

In order to ensure a clear fixation of a tension clamp starting from the guide plate for holding down the rail, it is furthermore provided that the base section in its longitudinal side edge region remote from the rail has a groove-shaped recess for receiving leg sections of the tension clamp, provided that this is secured on the foot of the to be secured Support rail.

In the rail-side longitudinal region of the base section, an opening runs through the shaft of the screw element, which penetrates a central section of the tensioning clamp in order to tension it and at the same time to connect the guide plate to the concrete plate.

The tension clamp itself is, in particular, one which has a W or M geometry in plan view, without this being intended to restrict the invention.

Furthermore, a rib-shaped elevation extends along the longitudinal edge region of the guide plate on the rail side, on the inside of which portions of the tensioning clamp bear, provided that this is to be used with the guide plate as a preassembled unit. The tensioning clamp orders in particular from a first U-shaped section through which the screw element passes and two symmetrical to the first U-shaped section and two second U-shaped sections rotated by 90 ° or 270 °.

The molding attachment starting from the base section of the guide plate can start from different positions of the underside of the molding attachment. Thus, with the same dimensions and the same position of the opening for the sleeper screw, the same insert can be used regardless of the position of the molding attachment from which the molding attachment starts from the guide plate. This results in a positionability for guide plates and thus a desired guidance of a rail or adjustment of a track.

A method for producing a plurality of concrete sleepers of the type mentioned at the outset is characterized in that inserts to be cast in the concrete sleeper are used, each with a cuboid base body running on the upper side of the concrete sleeper, the side walls of which run transversely to the longitudinal direction to the central axis of the concrete sleeper having an angle α with Include 30 ° <α <+ 30 °, the side walls in particular running parallel or approximately parallel to the central axis. This ensures that when the tensioning wires are cut after the concrete has set and the concrete sleepers in the long bed are shifted horizontally, no force component acts on the sleeper that enables them to move upward.

The inserts themselves start from the bottom wall of the formwork of the long bed and are connected via shearable rivets or elements with the same effect.

Further details, advantages and features of the invention result not only from the claims, the features to be extracted from them - by themselves and / or in combination - but also from the following description of preferred exemplary embodiments which can be found in the drawing. Show it:

1 is a plan view of a concrete sleeper,

FIG. 2 shows a section along the line A-A in FIG. 1,

3 is an exploded view of the concrete sleeper according to FIG. 1 with elements connected to it,

4 is a plan view of a guide plate,

5 is a front view of the guide plate shown in FIG. 4,

6 is a side view of the guide plate shown in FIG. 4,

7 is a perspective view of the guide plate according to FIG. 4 from above,

8 is a perspective view of the guide plate according to FIG. 4 from below,

9 is a front view of an insert,

10 is a side view of the insert of FIG. 9,

11 is a plan view of the insert according to FIGS. 9 and 10,

12 shows a perspective illustration of the insert according to FIGS. 9 to 11 ₅

13 shows a section of a base plate of a formwork, 14 is an exploded view of the insert according to FIGS. 9 to 12 and a plug that can be connected to it,

Fig. 15, the unit consisting of the insert and the dowel after fixing on the bottom wall and

16 shows a detail of FIGS. 14 and 15.

In order to drive a rail and secure it at the same time, it is known to arrange the rail foot between guide plates, which in turn are connected to a threshold. At the same time, a tension clamp starts from the guide plate and is used to hold the rail down.

The figures show special configurations of guide plates 10, 12 (FIGS. 1-3) and 14 (FIGS. 4-8), which are connected to a concrete sleeper 16 in the following manner. The concrete sleeper 16 is preferably arranged in the area of a switch. Since the sleepers have different lengths depending on the installation location, several sleepers are usually cast simultaneously in a so-called long bed. According to the invention, inserts 18, 20 are cast and concreted in, which form-fit the guide plates 10, 12 in the manner described below.

In the exemplary embodiment, a stock rail 20 is arranged in a switch area via an elastic intermediate layer (pad) 22 on the upper side 25 of the concrete sleeper 16. To guide and secure the stock rail 20, the guide plates 10, 12 are arranged adjacent to its rail foot and connected to the concrete sleeper 16 via sleeper screws 24, 26. The guide plates 10, 12 lie with longitudinal edges on the longitudinal side edges 28, 30 of the rail foot of the stock rail 20. As illustrated in FIGS. 4-8, each of the guide plates 10, 12, which is identified in FIGS. 6-8 with the reference numeral 14, has a cuboid base body or section 32, from the underside 34 of which a molded extension 36 extends , which also has a cuboid geometry with rounded corners. The areal extension of the shape extension 36 is less than that of the base section 32.

On its upper side, the guide plate 14 has a groove-shaped depression 42 in its longitudinal edge region 40 facing away from the stock rail 20. In the longitudinal edge region 44 adjoining the rail foot there is an opening 46 which is penetrated by a sleeper screw 24, 26, on the one hand to connect the guide plate 14 to the concrete sleeper 16 and on the other hand to tension and secure tensioning clamps 74, 76 as explained below. Furthermore, a rib 48 runs in the longitudinal edge region 44 on the rail foot side, which delimits an adjacent flat region 50 on the outside. The region 50 is then delimited by a rib-like elevation 52 opposite the channel-shaped recess 42 in a manner remote from the rail foot.

The guide plate 10, 12 and 14, i.e. whose shape extension 36 is positively received by the insert 18, 20, which is identified in FIGS. 9-12 with the reference number 54. The insert 54, which is made of plastic in particular, has a cuboid-shaped base section or body 56, from the bottom wall 58 of which a sleeve 60 extends, which has the function of a dowel and, when the guide plate 10, 12 is mounted, the sleeper screw 24, 26, i.e. whose shaft 62, 64 receives.

The base section 56 has an inner geometry which corresponds to the outer geometry of the shaped extension 36 of the guide plate 14, so that a positive engagement takes place. The insert 54 and thus the base section 56 run in the concrete sleeper 16 in such a way that when the base 36 is inserted in the base section 56, the underside 34 of the base body 32 of the guide plate 14 is supported on the upper side 25 of the concrete sleeper 16, that is to say its upper outer surface . In order to make it possible to adjust the guide plates 10, 12, 14 in relation to a rail to be guided, the invention provides that the inserts 18, 20 cast in the concrete sleeper 16 can be assigned guide plates with shaped projections 36 which differ from areas which differ from one another the underside 34 go out, irrespective of this the geometry of the mold shoulder 36 and the course of the opening 46 with respect to the circumferential geometry of the mold shoulder 36 remain unchanged. This enables the position of the longitudinal edge 44 of the guide plate 10, 12, 14 resting against the rail base to be set accordingly, depending on the shape of the molding attachment 36.

As can be seen from the drawings, the longitudinal side walls 68, 70 of the base section 56 of the insert 54, which run transversely to the longitudinal axis 66 of the concrete sleeper 16, run approximately parallel to the central axis 72 of the concrete sleeper 16. This results in the advantage that the Manufacturing the concrete sleeper 16, ie After pouring and setting the concrete and then severing the tensioning wires and the consequent migration of the concrete sleeper in the longitudinal direction of the formwork of the long bed through the inserts 18, 20, 54 connected to the formwork but which can be sheared off, no force components are introduced onto the concrete sleeper 16 ¬ can, which causes a lifting and thus moving up the concrete sleeper 16, as is the case according to the prior art.

Irrespective of this, the inserts 54 are connected to the bottom wall of the formwork of the long bed in accordance with the shapes usually used to form a desired surface geometry of the concrete sleeper, for example by shearable rivets.

13 to 16 it is to be explained in principle how the insert 54 together with the sleeve 60, which, as mentioned, performs the function of a dowel for the sleeper screws 60, 22 which can be screwed into the pourable concrete sleeper, namely with a formwork whose bottom wall 100 can be connected in such a way that after the concrete has set and the formwork and thus the bottom wall 100 have been removed detachment from the bottom wall 100 takes place, but at the same time a clear fixation is guaranteed when the concrete threshold is poured.

As can be seen from FIG. 14, shearable pins 106, 108, 110 emanate from the longitudinal side edges 102, 104 of the cuboid base section 56 of the insert 54 and are used to fix the insert 54 in corresponding holes 112, 114, 116 in the floor wall ¬ manure 100 of the formwork can be used. For this purpose, the sleeve 60 is first inserted into the insert 54. To uniquely fix the sleeve 60, a hollow cylindrical section 118 extends from the bottom wall 58 of the cuboid base section 56 of the insert 54 and extends to both sides of the bottom wall 58. The inner geometry of the section 118 is adapted to the outer geometry of the end section 120 of the sleeve which does not have a thread. Furthermore, the section 118 in the interior of the insert 54 has an extension 122 formed by a step, which is geometrically adapted to a flange section 124 in the end region of the sleeve 60, so that the outer surface 126 of the flange section 124 is flush with the upper edge 128 of the hollow cylindrical section 118 passes.

The unit consisting of the insert 54 and the sleeve 60 is fixed according to FIG. 15 on the bottom wall 100 of the formwork, so that the insert 54 is subsequently prevented from moving when the concrete is poured.

According to the teaching according to the invention, the longitudinal side walls 68, 70 of the insert 54 have an angle α to the central axis of the concrete sleeper, i.e. axis parallel to the longitudinal axis of the sleeve 60, which ensures that after the concrete has set and the tensioning wires have been severed when moving the concrete sleeper has no force component acting on the sleeper through the insert 54, which enables an ascent.

If the concrete sleeper is removed, the pins 106, 108, 110 are sheared off.

As can be seen in particular from the illustration according to FIG. 4, the guide plates 10, 12, 14 serve not only for the correct positioning of the stock rail 20, but also for receiving tension clamps 74, 76, which are fixed on the guide plates 10, 12 and tensioned via the sleeper screws 24, 26.

In the exemplary embodiment, the tensioning clamps 74, 76 have a W geometry in plan view, without this restricting the teaching according to the invention. Regardless of the geometry of the tension clamp 74, 76, however, leg sections - in the exemplary embodiment free leg sections 78, 80 or 82, 84 - are always supported on the rail foot or its longitudinal edge regions 28, 30 and hold the stock rail 20 when the sleeper screw 24, 26 is tightened low. For this purpose, the shaft 62, 64 of the sleeper screw 24, 26 passes through a central section 86, 88 of the tensioning clamp 74, 76 following a U geometry and is supported in a known manner with its head 90, 92 directly or indirectly on the central section 86, 88 from, whereby the tensioning clamp 74, 76 is tensioned to the required extent.

When the stock rail 20 is in the holding-down position, leg sections 90, 92 of the tensioning clamp 74, 76 run in the respective groove-shaped recess 42 facing away from the rail for their unambiguous alignment with the stock rail 20.

In the preassembled state, ie before a rail 20 is positioned between the guide plates 10, 12, the tensioning clamps 74, 76 are retracted, i. This means that they release the area between the guide plates 10, 12, the leg sections 78, 80, 82, 84 running within the flat area 50 of the guide plates 10, 12, 14 delimited by the ribs 48, 52 and in the as Groove to be designated flat area 50 are fixed, whereby an uncontrolled slipping and thus an unwanted hindrance when inserting the stock rail 20 is excluded.

Claims

Arrangement for guiding a rail on a concrete sleeper and method for producing such

1. Arrangement for guiding a rail (20) to be fastened on a concrete sleeper (16) comprising guide plates (10, 12, 14) running along the respective longitudinal edge of the rail foot (28, 30) and receptacles (18, 20, 54) formed in the concrete sleeper ) for the guide plates, characterized in that the receptacle contains an insert (18, 20, 54) concreted in concrete in the concrete sleeper (16) with a hollow cuboid base body (56) which receives the guide plate (10, 12, 14) in sections in a form-fitting manner ) and a sleeve (60) extending from it for receiving a shaft (62, 64) of a screw element (24, 26) connecting the guide plate (10, 12, 14) to the concrete sleeper.

2. Arrangement according to claim 1, characterized in that the base body (56) of the insert (18, 20, 54) transverse to the longitudinal axis (66) of the concrete sleeper (16) has extending side walls (68, 70), each Include an angle α with the center axis (72) of the concrete sleeper with - 30 ° <α <+ 30 °, in particular run parallel or approximately parallel to the center axis.

3. Arrangement according to claim 1 or 2, characterized in that the guide plate (10, 12, 14) from a along the top (24) of the concrete threshold (16) cuboid base section (32) and one from the bottom side (34) outgoing form approach (36), which is positively received by the base body (56) of the insert (18, 20, 54).

4. Arrangement according to at least claim 3, characterized in that the base section (32) preferably in the respective longitudinal side edge region (40, 44) has a channel-shaped depression (42, 50) for optionally receiving leg sections (78, 80, 82, 84, 90, 92) has a tensioning clamp (74, 76) which can hold down the rail (20) and can be fixed via the guide plate (10, 12).

5. Arrangement according to at least claim 1, characterized in that in the rail-side longitudinal edge region of the base section (32) of the guide plate (10, 12, 14) penetrates one of the shank (62, 64) of the screw element (24, 26) like sleeper screw Opening (46) runs.

6. Arrangement according to at least claim 4, characterized in that the tensioning clamp (74, 76) preferably has a W or M geometry in plan view.

7. Arrangement according to at least claim 4, characterized in that the tensioning clamp (74, 76) in the preassembled position with its leg sections (78, 80, 82, 84) holding the rail (20) in the assembled position in a trough-shaped depression (50) the guide plate (10, 12) runs.

8. Arrangement according to at least claim 1, characterized in that the guide plate (10, 12, 14) consists of plastic or steel and in particular is a cast part and / or that the insert (18, 20, 54) is made of plastic stands.

9. Arrangement according to at least claim 1, characterized in that an insert (18, 20, 54) guide plates (10, 12, 14) with molded lugs (36) arranged in different positions with the same dimensions of the molded lugs and the same Course of the opening (46) can be assigned in relation to the shape of the geometry.

10. A method for producing a plurality of concrete sleepers in a long bed comprising a formwork having a cuboid geometry with molds for the guide plates that can be arranged on the concrete sleeper, the form of which can be inserts to be concreted into the concrete sleeper, each with be - cuboid base body extending on the sound threshold side is used, the side walls of which extend transversely to the longitudinal direction of the long bed and form an angle α with - 30 ° <α <+ 30 ° to the central axis of the formwork.

11. The method according to claim 10, characterized in that the side walls run parallel or approximately parallel to the central axis of the formwork.