EP2609257A1

EP2609257A1 - Base plate for a rail-fastening system, system for fastening a rail, and method for renovating a rail-fastening point

Info

Publication number: EP2609257A1
Application number: EP10747194.8A
Authority: EP
Inventors: Winfried BÖSTERLING; Jörg Happe
Original assignee: Vossloh Werke GmbH
Current assignee: Vossloh Werke GmbH
Priority date: 2010-08-24
Filing date: 2010-08-24
Publication date: 2013-07-03
Also published as: US8919661B2; CA2809062A1; CN103080422B; WO2012025146A1; CN103080422A; AU2010359817A1; US20130206854A1

Abstract

The invention relates to a base plate, which is designed to be laid, as part of a system for fastening a rail (S), on a support section (4) on which the rail (S) is supported in the finally installed state, to a system for fastening a rail (S) to a solid foundation, and to a method for renovating a rail-fastening point (1). The element according to the invention, the system, and the method allow a fastening point for a rail to be easily and economically renovated in such a way that a permanently reliable function of the renovated fastening is then ensured again while the worn support section remains. This is achieved in that the base plate (11) has at least two longitudinal edge sections (13, 14), which are arranged at a distance from each other and which are bevelled in the direction of the lower face (15) of the base plate associated with the support section (4) or in the direction of the upper face of the base plate (11) associated with the rail foot (SF), and of which one longitudinal edge section (13, 14) is associated with one of the longitudinal sides of the crosstie (2) so that one of the longitudinal edge sections (13, 14) extends along a longitudinal side of the crosstie (2) when the base plate (11) is finally installed on the crosstie (2).

Description

Platen for a rail fastening system, system for securing a rail and method for refurbishing a rail fastening point

The invention relates to a Unterlegplatte which is intended to be placed as part of a system for the attachment of a rail on a support portion on which the rail is supported in the assembled state. The support section is included

typically on one of concrete or one

comparable construction material existing threshold or plate formed, which in turn lie on a suitably prepared underground.

Furthermore, the invention relates to a system for

Fixing a rail on a solid surface, on which a support portion is formed, on which the rail to be fastened with fully assembled system

is supported.

Finally, the invention also relates to a method for rehabilitating a rail fastening point on which the rail is resiliently supported by means of a force acting on its rail foot, tensioned by a clamping element spring element resiliently on a support portion of an abriebgefährdeten, solid material existing threshold. Rail fastening systems of the type specified above, which can be rehabilitated with a method according to the invention, are known in large numbers. A typical one

Example of such in practice many times

The tried-and-tested fastening system is described in more detail in the installation instructions "Rail fastening system W14", which is available for download at the URL "http://www.vossloh-barsystems.de".

The W14 rail fastening system is based on a

Concrete threshold into which a level, in plan view

formed at right angles support portion for the foot of each rail to be fastened.

As an alternative to a threshold, concrete slabs are also used to support the rail on the respective underground, which are designed in a corresponding manner. The following explanations apply insofar

equivalent to such plates or sleepers.

Viewed in the longitudinal direction of the rail to be fastened, the respective support section extends over the entire threshold, while its width measured transversely to the longitudinal extent of the rail is greater than the width of the rail foot but smaller than the entire width of the threshold. At their aligned parallel to the longitudinal extent of the rail narrow sides of the

Supporting portion bounded by a likewise extending parallel to the longitudinal extent of the rail to be fastened via the threshold extending depression having a substantially V-shaped cross-section.

In addition, in the on both sides of the occupied in the mounting position of the rail foot part existing areas of Support section each formed a receptacle for a dowel or the like, in which a clamping screw can be screwed.

For fastening the rail, in each case a so-called "angled guide plate" is applied to the areas of the support section not occupied by the rail foot

placed. These for weight reasons and for the purpose of improving the elastic behavior and the

electrical resistance usually from a

made of high strength plastic material

Angle guide plates have a central portion, on the underside of a support surface is formed with which sit the angle guide plates on the support portion. When used for the W14 system

Angled guide plate is at the central section

In addition, a support section formed, which is

extending from the support surface on the underside of the angled guide plate down and its shape to the shape of the rest of the support section

Lowering the threshold is adjusted. In the

Mounting position sits accordingly each of the

Angled guide plates with their support section

positively in their respective associated depression. With her opposite the support section

Contact surface are the angle guide plates on the other hand at the side of the foot of the rail to be fastened.

Side forces coming from the rail to the

Angled guide plate can be transferred so absorbed by the angled guide plate and passed into the threshold. The support of the angled guide plates takes place over that facing away from the rail

Side surface of the respective depression.

To secure the rail against lifting are usually in the known rail fastening systems

Spring elements are used, which exert a resilient elastic hold-down force on the rail in the assembled state. Those used in the rail fastening system W14 and comparable systems, also as

"Clamps" designated spring elements are W-shaped and with its central portion on the

Angled guide plate braced. This is in the

Angled guide plate formed a passage opening through which the clamping screw used for clamping the respective tensioning clamp can be screwed into the recessed respectively in the threshold dowels.

After completion of the assembly is clamped in this state against the threshold tension clamp with their outgoing from the central portion retaining arms on the foot of the rail to be fastened. The support arms transmit spring forces to the rail foot, which on the one hand are strong enough to prevent excessive lifting of the rail, but on the other hand are also so elastic that the rail can move when passing over

Rail vehicle sufficiently in the vertical direction can move up and down. In this way, the rail is held securely and can still compensate for their caused by the weight and the driving movement of the rail vehicle deformations. To the required compliance of the in the

formed above-explained manner

Rail fastening point is to ensure

usually between the rail foot and the

Pad portion arranged one consisting of an elastically yielding material intermediate layer.

Practical experience shows that under unfavorable conditions of assembly or operation considerable abrasion of the respective threshold or plate occurs in the area of its support section. The wear manifests itself in an irregular material removal. This can go so far that between rail and support section permanently an air gap is present, as a result, a safe support of the rail in the respective attachment point is no longer guaranteed and any provided rail inclination is permanently inadmissible changed.

It is known that an air gap, which can exist between a threshold and a ballast bed or a concrete slab on which the threshold stands, due to unavoidable structural inaccuracies, by

Injection of a filling compound can be closed

(DE 199 29 283 AI, JP 2002/242103 A). The transfer of this known method to the rehabilitation of

Rail attachment points, in which an air gap has formed between the support portion of the threshold and the rail due to abrasive wear, however, proves to be problematic, as in the

Crossing the respective attachment point on the support section load-bearing pressure forces are so high that the injected filling does not have them over one

sufficiently long service life withstands. It also proves to be difficult to apply the injection mass so that the optionally existing elastic intermediate layer can continue to fulfill its function.

Against this background, the object of the invention to provide a means, a system and a method with which a point of attachment for a rail can be rehabilitated in a simple and economical manner so that subsequently leaving the worn

Pad section again a permanently safe function of the refurbished attachment is guaranteed.

With regard to the agent this object has been achieved by a molded according to claim 1 shim.

With regard to the system, the object stated above is achieved according to the invention in that such a system has at least the features specified in claim 2

having .

With regard to the method, the solution is the

The above object, however, according to the invention in that in the renovation of a

Rail fastening point the steps specified in claim 12 are completed.

Advantageous embodiments of the invention are specified in the dependent claims and are explained below as the general inventive concept in detail. The invention makes use of the already known method of filling an air gap present in the region of a threshold with a filling or leveling compound, and moreover proposes the use of a shim which is designed and arranged in the manner according to the invention evenly distributed on the balancing mass during operation. As a result, there is a danger of the emergence of local

Pressure concentrations and a concomitant

Breaking the balancing mass avoided. It also has an advantageous effect that it is possible with the help of the shim, the track to which the to be rehabilitated

Rail mounting point is required to operate before the leveling compound is fully cured.

The proposed for this purpose by the invention

Shim has at least two spaced apart

arranged on one another longitudinal edge portions, in the direction of the support portion associated with the underside or the rail associated with the top of the

Shim are folded and each of which has a longitudinal edge portion each one of the longitudinal sides of

Is associated with each threshold, so that in each case one of the longitudinal edge portions extends along a longitudinal side of the threshold with ready mounted on the threshold shim.

Due to the folded longitudinal edge portions, a backing plate according to the invention is stiffened on the one hand so that even with a small thickness of the material from which it is made, a sufficient

Flexural rigidity possesses, in assembly position in Essentially free of deformations to absorb the forces on her.

On the other hand, the folded longitudinal edges of the

Washer a guide, through which the mounting of the shim is facilitated. This makes them easier to move towards the threshold in the assembly position

Alignment the exact position of the

Shim in relation to the respective with the

Compensation mass occupied support section. In facing away from the pad section orientation and

According to the small height of the longitudinal edge portions or sufficient thickness of the elastic intermediate layer, they can in a comparable manner the positionally accurate

Support alignment of the liner.

A system according to the invention for fastening a rail to a solid substrate comprises a) a layer applied to the support section and formed from a leveling compound;

b) resting on the layer formed by the balancing mass, over the support section

extending shim on which the to

fastened rail is supported in fully assembled system;

c) a spring element for exerting a resiliently elastic hold-down force on the rail to be fastened;

and

d) an anchored in the solid ground clamping element for tensioning the spring element. Particularly advantageous is the use of a shim plate designed according to the invention in a system according to the invention.

The dimensional stability of a shim present in a system according to the invention can be further improved by having at least one transverse edge section which extends between the longitudinal edge sections and like the longitudinal edge sections in the direction of the underside or the upper side of the shim

folded. This embodiment of the invention proves to be particularly advantageous if the

Supporting portion, on which the shim is to be placed, in its longitudinal direction to be fastened

Rail-facing pages by one each

Depression is limited and the distance between

Transverse edge portions equal to the distance of the depressions to each other, so that the transverse edge portions may have in the depressions when fully assembled shim.

Conveniently, the shape of the invention

Shim each adapted to the shape of the restoring portion to be rehabilitated. In practice, the

Shim plate accordingly usually a in

Top view have rectangular shape.

If the attachment of the spring elements used to hold the rail down via a screwed into the threshold dowel, so is an inventive

Shim plate expediently with at least one correspondingly arranged passage opening for Performing a clamping element provided, which is typically a fastening screw.

Basically, the inventive

Manufacture a shim made of all materials that have sufficient load capacity and at the same time have sufficient resistance to abrasive wear. These requirements can be met in a particularly cost-effective manner by the fact that the shim consists of a steel material. That's how one can be

Underlay plate according to the invention, for example

form a particularly simple manner from a steel sheet, in a conventional manner from a conventional

Structural steel is made.

The inventive method for refurbishing a

Rail fastening point on which the rail by means of acting on their rail foot, tensioned by a clamping element spring element resiliently on a support portion of a from a

abrasion-prone, solid material existing threshold is included in the preceding explanations according to the following steps: a) release the clamping element such that the spring element relieved and the rail can be lifted from the support section; b) lifting the rail, so that the support portion of the threshold is freely accessible; c) application of a layer formed from a pasty, hardenable leveling compound on the

Support section; d) placing a shim on the through the

Balancing mass formed position under at least sections of displacement and concomitant leveling of the balancing mass; e) curing the leveling compound; f) placing and aligning the rail on the

shim; g) clamping the spring element by means of

Clamping element.

With this approach, it is possible to sustainably eliminate the consequences of an induced by abrasive wear incorporation of the rail foot in the support section of a concrete sleeper or plate, without requiring an exchange of the respective threshold or plate is required. After the renovation, the rail is no longer directly on the support section or on it

applied balancing mass, but on one

Shim, on the one hand an optimally flat

Supporting surface for supporting the rail foot provides and on the other hand distributes the forces occurring in practical operation evenly on the then existing between it and the support portion balancing mass.

The in a system according to the invention between the

Shim and the support section according to the invention provided and applied in the course of the process according to the invention on the support portion balancing weight is similar to those in the worn

Outlay section of existing unevenness and

supports the backing plate on it in such a way that it is also under practical use

occurring changing pressure loads permanently maintains its shape.

With the aid of the method according to the invention, it is thus possible in a simple and cost-effective manner

Determining a wear damage on the support section of a threshold or plate within a short time again to allow safe rail operation, without having to swap the respective threshold or plate.

This success is especially true when the laid in the course of the process according to the invention on the leveling compound shim in

designed according to the invention. By in a inventively designed shim

guaranteed inherent rigidity, such a plate is particularly well suited to the practical operation

evenly distributed forces on the balancing mass. Accordingly, the requirements of using an inventively designed

Shim to the accuracy of the distribution of

Compensation be made, and thus further minimized the amount of work in carrying out the method according to the invention. In the event that the threshold of the fixing point to be rehabilitated has a dowel receiving opening, a plug should be inserted into the opening prior to the application of the balancing mass to prevent penetration of balancing mass into the opening. After curing of the leveling compound, the stopper is removed, so that the clamping element required for clamping the respective spring element easily into the dowel

can be screwed. In the event that the

Underlay provided according to the invention one of the

Having opening of the threshold associated through hole, the plug can be used in addition to the positionally accurate alignment of the shim by the length of the plug is dimensioned such that the plug engages with the shim plate through the associated through hole of the shim.

The permanently positionally accurate mounting of the invention according to the invention arranged on the leveling ground washer can be additionally ensured by the

Compensation mass is a glue. That's the way to go

For example, two-component leveling compounds, two-component adhesives, epoxy-containing leveling compounds or cement-based leveling compounds, such as injection mortars, for the purposes of the invention use.

If in accordance with the invention attachment points are to be rehabilitated, which comprise at least one guide plate, which laterally support the rail against a shoulder formed on the threshold, so may compensate for the use of a shim according to the invention optionally conditional change Nominal gauge the relevant guide plate removed with dissolved spring element and replaced by a guide plate whose measured in mounting position transversely to the rail lag differs from the length of the originally provided there angle guide plate.

Is for a defined compliance of in

Restored inventive way fastening point provided an elastic intermediate layer, so there is a particularly easy to install and at the same time effective arrangement of this liner when it comes to the

Washer is placed on the rail and with its rail on the assembled system

Interlayer stands.

Does the system according to the invention comprises at least one

Guide plate, which supports the rail laterally against a formed on the solid ground shoulder, so can a lifting of the shim of the

Compensation mass or one of the support section pioneering tensile load of the balancing mass in a simple manner thereby prevent the shim at its top has a support surface on which the

Guide plate in the assembled state at least partially rests.

The invention is based on

Embodiments explained in more detail. Each show schematically:

Fig. 1 shows a finished rehabilitation attachment point for a rail in a partial broken side view, where on the left broken side of the fully assembled position of the components is shown, while on the right side of the

Pre-assembly can be seen;

Fig. 2 the illustrated in Fig. 1, renovated

Attachment point in a view from above;

Fig. 3 a in the refurbished attachment point

inserted shim in

perspective view from below;

Fig. 4, the shim in a lateral

View ;

5 shows the attachment point prior to its renovation in a view corresponding to FIG. 1;

Fig. 6 - 10 the attachment point in the various

Stages of its renovation.

In FIGS. 1 and 2, the state of a rail fastening point 1 designed in the manner of the known rail fastening system W14 is shown after its renovation, while FIG. 5 shows the state before the renovation.

The attachment point 1 shown in Figures 1, 2 and 5 comprises a threshold made of concrete 2, on the top 3 a support portion 4 is formed. The former level, however, as a result of abrasive wear and concomitant removal of material on its surface The support section 4, which has become uneven, is centrally aligned with respect to the length LS of the threshold 2 measured transversely to the longitudinal direction L of the rail S to be fastened and has a length which is greater than the width B of the rail foot SF measured in the direction of the length LS.

At the same time extends in plan view

right-angled support section 4 over the entire in

Length L of the rail S measured width BS of the threshold 2. On its narrow sides is the

Supporting section 4 each bounded by a groove-shaped, in cross-section V-shaped recess 5.6, which also extends in each case over the width BS of the threshold 2 and on its from the support section. 4

opposite side in each case in a molded onto the threshold 4 shoulder 7,8 passes.

When rehabilitated, shown in Figures 1 and 2

Fixing point 1 is on the support portion 4 a consisting of a curable leveling compound layer 9 is filled, which fills the existing on the surface of the support portion 4 bumps 10 and covered with a certain thickness D the entire support portion 4. The balancing mass is one in air

self-hardening adhesive, which enters into a cohesive connection both with the concrete material of the threshold 2 and with the steel material from which there is a backing plate 11 located on the leveling layer 9 at the refurbished attachment point 1. At the same time, the layer 9 forming leveling compound in the cured state is dimensionally stable and firm that they are the

Driving over the attachment point via the shim 11 can safely absorb uniformly distributed to the layer 9 loads.

As a result of the layer 9 consisting of the leveling compound, the backing plate 11 is thus supported so uniformly on the one hand on the refurbished attachment point 1 that a flat, optimally aligned surface is provided on its upper side

Footprint 12 for the rail to be fastened

is formed, which as the replacement of the on the

worn pad section 4 formerly existing flat surface is used. On the other hand, the

Shim 11 sure that on the 9th layer

acting forces are distributed so evenly that a local overloading prevents the situation 9 and

Accordingly, the risk of breakage of the layer 9 forming balancing mass is minimized.

The existing at the refurbished attachment point 1, but in unsanierten state of the attachment point as the layer formed from the balancing mass 9 missing

Shim 11 is formed from a flat sheet metal blank having a rectangular shape

Pad section 4 has adapted form. At their longitudinal edges, the shim 11 each has a longitudinal direction LU of the shim 11th

extending longitudinal edge portion 13,14, in

Direction of the bottom 15 of the shim 11 is bent so that it is aligned approximately at right angles to the AufStandsfläche 12 of the shim 11 each. In addition, the shim 11 has its

Narrow sides 16,17 each have a transverse edge portion 18,19, which is also folded to the bottom 15 of the shim 11. However, that is between the

Transverse edge portions 18,19 and the undeformed portion of the shim 11 included angle adapted to the angle at which the to the Äuflageabschnitt. 4

adjacent sides of the depressions 7,8 are aligned with respect to the free top 3 of the support portion 4.

The corner regions between the longitudinal edge portions 13, 14 and the transverse edge portions 18, 19 are respectively

except to the longitudinal edge 13,14 and

Form transverse edge sections 18,19 easily wrinkle-free.

By the beveled longitudinal edge 13,14 and

Transverse edge portions 18,19, the shim 11 is stiffened in their longitudinal and transverse directions so that they are largely free of deformation in the mounting position when driving over the attachment point 1 forces despite a minimized thickness of their steel sheet material

can transfer. The distance AI of the longitudinal edge portions 13,14 is adapted to the width BS of the threshold 2, that the longitudinal edge portions 13,14 in their

Assembly position, in which they transversely to the rail S

are aligned with a close distance to the associated side of the threshold 2 are arranged. By contrast, the distance A2 of the transverse edge sections 18, 19 is dimensioned so that the transverse edge sections 18, 19 in the assembly position respectively engage in one of the depressions 5, 6 of the threshold 2. On this is the shim 11 in theirs

Assembly position in both longitudinal and in

Width direction of the threshold 2 positively positioned.

In their respective transverse edge section 18,19

assigned end portion is formed in the shim 11 each have a through hole 20,21. The

Through holes 20,21 are arranged such that they are aligned in the mounting position in each case one of the manner of a counterbore in the threshold 2 molded opening 22,23, in each case a

Plastic anchor K is sitting. The existing of the balancing layer 9 is recessed in the area of the openings 22,23, so that as a clamping element 24,25 for each spring element 26,27 serving clamping screw freely inserted through its associated through hole 20,21 and in the respective Opening 22,23 seated dowel K can be screwed.

The refurbished attachment point 1 is located on the

lateral end portions of the shim 11 each in a conventional manner in the manner of a

Angled guide plate trained guide plate 28,29 with its guide portion 30,31, in the position of the respective associated passage opening 20,21 of

Shim 11 position positioned also a through hole 32,33 is formed. At its the rail S associated end face, the

Guide section 30,31 each have a contact surface 34,35, is guided laterally at the mounted on the mounting point 1 of the rail foot SF. To the

Guide section 30,31 of the respective guide plate 28,29 is followed by a respective support portion 36,37, which is in such a manner V-shaped in cross-section in such a way that it sits in the mounting position on the one hand form-fitting in the associated therewith depression 5.6 of the threshold 2 and on the other hand with his from the Änglingfläche 34,35 of the respective guide plate 28,29 side facing away from the associated shoulder 7,8 of the threshold 2 is supported. Effective in terms of the support of the rail foot SF, between the at the

respective shoulder 7.8 adjacent surface of the

Support section 36,37 and the contact surface 34,35 of the respective guide plate 28,29 measured length LW of the guide plates 28,29 is dimensioned so that the track width of the track not shown here, to which the rail S belongs, despite the by the each in the respective depression 7.8 cross-edge portion 18,19 of the shim 11 specific positioning of the guide plates 28,29 is in accordance with regulations.

Even when not rehabilitated, shown in Fig. 5 attachment point 1 are for lateral guidance of

Rail S guide plates 40,41 provided. The

Guide plates 40,41 are in accordance with

Guide plates 28,29 shaped, however, in the assembled state with their guide portion directly on the top 3 of the support portion 4 and sit with its support portion in just as direct contact with their side surfaces in the depressions 7,8 of the threshold 2. Accordingly, the differs effective length LW of the guide plates 40,41 used at the unsanierten attachment point 1 by the amount by which the position of the support portion 36, 37 of the rehabilitated Fixing point 1 used guide plates 28,29 by reaching into the depressions 7,8

Transverse edge portions 18,19 of the shim 11 relative to the position of the support portion of the originally unsanierten attachment point 1 used

Guide plates 28,29 is moved.

The provided for applying the required hold-down forces spring elements 26,27 are formed as conventional-shaped clamping clamps, as they are commonly used in fastening systems of the type in question here. The spring elements 26,27 have

Accordingly, a U-shaped central portion, acts on the ready-mounted state of the attachment point 1, the respectively associated clamping element 24,25 with its screw head. The legs of the central portion of the spring elements 26,27 each go into a holding arm. In the assembly position, the respective spring element 26,27 resiliently presses with its mutually aligned end portions on the respective top side of the rail foot SF.

Between the shim 11 and the rail foot SF is at the refurbished attachment point 1 an elastic

Interposed layer 42 arranged in a conventional manner, the required elastic compliance of the

Secured attachment point 1. In the unrefined

Condition is the elastic intermediate layer 42 directly on the upper side 3 of the support section 4. In the event that the originally existing intermediate layer is worn, it will be replaced by a new intermediate layer 42 during the renovation. The intermediate layer 42 lying on the backing plate 11 at the refurbished attachment point 1 has its respective guide plate 40, 41 assigned to it

Narrow sides in each case a projection 45,46 which rests on the shim 11 and whose height is less than the thickness of the intermediate layer. In the fully assembled state shown in FIGS. 1 and 2, the projections 45, 46 engage in a guide plate 40, 41, which is assigned to each of them in the end face

Recess 47,48, which shown here

Ausfügungbeispiel than to the shim 11 open, across the width of the guide plates 40,41

extending paragraph is executed. In this way, the intermediate layer 42 at the finished rehabilitation

Fixing point 1 at least in the vertical direction positively secured so that it always maintains its optimal position even under the deformations occurring in practical operation.

To rehabilitate the worn attachment point 1, the clamping element 24,25 are released and the spring elements 26,27 and the guide plates 40,41 removed, so that the rail S lifted and the elastic intermediate layer can be eliminated.

The now exposed support section 4 (FIG. 6) is freed from soiling, in particular on its upper side 3. Depending on the type of used

Leveling compound, a thorough drying of the support section 4 is additionally performed. Subsequently, plugs 43, 44 formed in the openings 22, 23 of the type of guide pins are used, which tightly close the inlet openings of the openings 22, 23 and the anchors K seated therein (FIG. 7). The

Dimensions of the plug 43,44 correspond approximately to the dimensions of the screw shafts of the clamping element 24,25.

Finally, a sufficient amount of an existing from a two-component adhesive leveling compound on the cleaned and dried top 3 of the

Pad section 4 distributed. The stoppers 43, 43 prevent the leveling compound from entering the openings 22, 23 (FIG. 8).

Now, the shim 11 is on by the

Compensation mass layer 9 formed. The

Shim 11 is thereby positioned so that the plugs 43,44 engage through one of their through openings 20,21 and thus form a positioning aid for the exact alignment of the shim 11.

After a hardening of the layer 9 forming

Balancing the plugs are 43,44 removed, the elastic intermediate layer 42 disposed at the intended position on the shim 11 and instead of the originally existing guide plates 40,41 the

matched guide plates 28,29 arranged.

Finally, the spring elements 26,27 are pre-assembled by means of the clamping elements 24,25 on the guide plates 28,29 in the manner shown on the right side of Fig. 1 and the rail S on the elastic Interposed layer 42 between the guide plates 28,29 set. Then, the spring elements 26,27 are pushed from the pre-assembly into their shown on the left side of Fig finished ready position in de they act with their spring arms on the rail foot SF of the rail S, and clamped by means of the clamping elements 24,25, the in the associated with them, in the now freely accessible openings 22,23 of the threshold 2 sitting dowel K are screwed.

REFERENCE NUMBERS

1 rail fastening point

2 threshold

3 top of the threshold 2

4 support section of the threshold 2

5,6 depressions of the threshold 2

7.8 shoulders of the threshold 2

9 existing from a hardenable leveling compound layer

10 rubs the top of the pad section 4

11 shim

12 support surface of the shim 11

13, 14 longitudinal edge portions of the shim 11th

15 underside of the shim 11

16,17 narrow sides of the shim 11

18,19 transverse edge portions of the shim 11

20,21 through holes of the shim 11th

22,23 openings of the threshold 2

24,25 clamping elements

26,27 spring elements

28.29 guide plates

30,31 guide portions of the guide plates 28,29

32,33 through holes of the guide plates 28,29

34,35 contact surfaces of the guide plates 28,29

36,37 support sections of the guide plates 28,29

40.41 guide plates

42 elastic intermediate layer

43,44 plugs

45.46 projections of the elastic intermediate layer 42nd

47.48 end-side recesses of the guide plates

40.41

AI distance of the longitudinal edge portions 13,14

A2 distance of the transverse edge sections 18,19

B Width of rail foot SF

BS width of the threshold 2

D thickness of the layer 9

L longitudinal direction of the rail S

LS length of the threshold 2

LU longitudinal direction of the shim 11th

LW respective length of the guide plates 28,29,40,41

K dowels

5 rail

SF rail foot

Claims

P A T E N T A N S P R E C H E

A shim intended to be placed as part of a system for fixing a rail (S) on a support section (4) on which the rail (S) is supported when fully assembled, d a d u r c h

e n c ia n, the s

Shim (11) has at least two spaced-apart longitudinal edge portions (13,14), in the direction of the support portion (4) associated bottom (15) or the

Rail foot (SF) associated top of the

Shim (11) are bent and each of which a longitudinal edge portion (13,14) each one of the longitudinal sides of the threshold (2) is assigned, so that in each case one of the longitudinal edge portions (13,14) when finished on the threshold (2) mounted Shim (11) along one longitudinal side of the threshold (2) extends.

System for fastening a rail (S) on a solid base, on which a bearing section (4) is formed, on which the rail to be fastened (S) is supported on a fully assembled system, comprising:

a) a on the support portion (4) applied layer (9) of a balancing mass;

b) a resting on the layer (9), over the support portion (4) extending shim (11) on which the rail to be fastened (S) is supported in fully assembled system;

c) a spring element (26, 27) for exerting a

resiliently retaining elastic force on the rail to be fastened (S);

and

d) An anchored in the solid ground

Clamping element (24,25) for clamping the

Spring element (26,27).

System according to claim 2, d a d u r c h

e n c ia n, the s

Shim (11) is designed according to claim 1.

System according to one of claims 2 or 3,

d a d u r c h e k e n e, the support plate (11) is at least one

Transverse edge portion (18,19) extending between the longitudinal edge portions (13,14) and in the direction of the support portion (4) associated underside (15) or the

Rail foot associated top of the

Washer (11) is folded.

System according to claim 4, d a d u r c h

g e n c i n e s, the s

Support section (4), on which the shim

(11) is placed on its in the longitudinal direction (L) of the rail to be fastened (S) aligned sides by a respective depression (5,6) is limited and that the transverse edge portion (18,19) is arranged so that when finished mounted

Shim (11) in each one of the depressions

(5,6) attacks.

System according to one of claims 2 to 5,

There is at least one guide plate (40, 41) which laterally supports the rail (S) against a shoulder (7, 8) formed on the solid substrate.

System according to claim 6, d a d u r c h

e n c ia n, the s

Shim (11) at its top one

Has support surface on which the guide plate (40,41) rests in the fully assembled state at least partially.

8. System according to one of claims 2 to 7,

At least one opening (22, 23) in which a dowel (K) is seated, into which the clamping element (24, 25) is screwed in the fully assembled state, is formed in the solid substrate.

9. System according to claim 8, d a d u r c h

e n c ia n, the s

Washer (11) has a through hole (20,21) for passing the clamping element (24,25) in the opening (22,23).

10. System according to one of claims 2 to 11,

The balancing mass is an adhesive.

11. System according to one of the preceding claims,

That is, it comprises an elastic intermediate layer (42) which is provided between the rail foot (SF) of the rail (S) to be fastened and the

Shim (11) to lie.

12. Method for rehabilitating a

Rail fastening point (1) on which the rail (S) by means of a force acting on its rail (SF), by means of a clamping element (24,25) tensioned spring element (26,27) resiliently on a support section (4) of one consisting of an abrasion-prone, solid material

Threshold (2) is supported, comprising the following steps:

a) releasing the clamping element (24,25) such that the spring element (26,27) relieved and the rail (S) of the support portion (4) can be lifted; b) lifting the rail (S) so that the

Support section (4) of the threshold (2) is freely accessible;

c) applying a layer (9) of pasty,

hardenable leveling compound on the

Support section (4);

d) placing a shim (11) on the layer (9) formed from the balancing mass under at least partially displacement and concomitant leveling of the balancing mass;

e) curing the leveling compound;

f) placing and aligning the rail (S) on the shim (11);

g) clamping the spring element (26,27) by means of the clamping element (24,25).

The method of claim 12, d a d u r c h

e, e s the threshold (2) has an opening (22, 23) receiving a dowel (K) and d a s s before the application of the

Leveling a stopper (43,44) in the opening (22,23) is plugged in to penetrate

Prevent leveling compound.

14. The method of claim 13, d a d u r c h

e n c ia n, the s

Washer (11) has one of the opening of the threshold (2) associated with passage opening (20,21) and the length of the plug is dimensioned such that the plug with attached shim (11) through the associated passage opening (20,21) of the shim ( 11) attacks.

15. The method according to any one of claims 12 to 14,

characterized in that the fixing point (1) to be renovated comprises at least one guide plate (28, 29) which laterally supports the rail (S) against a shoulder (7, 8) formed on the sleeper (2), and in that the guide plate (28 , 29) is removed when the spring element (26, 27) is released and replaced by a guide plate (40, 41) whose length (LW) measured in the mounting position transversely to the rail (S) is of the length (LW) originally provided there

Guide plate (28,29) differs.