WO2017133767A1

WO2017133767A1 - Device for covering at least one component of a rail fastening point, fastening point and method for covering a fastening point

Info

Publication number: WO2017133767A1
Application number: PCT/EP2016/052295
Authority: WO
Inventors: Ming XUANHUI; Hongchao MA
Original assignee: Vossloh-Werke Gmbh
Priority date: 2016-02-03
Filing date: 2016-02-03
Publication date: 2017-08-10
Also published as: CN209619762U

Abstract

The present invention relates to a device for covering at least one component (E, F, P) of a fastening point (B1, B2), in which a rail (S) for a rail vehicle is fastened to a base (U), a fastening point (B1, B2) and a method for covering a fastening point (B1, B2). The device according to the invention enables cost-effective covering of a fastening point (B1, B2), which can be adapted in a simple manner to different designs of fastening points, and thereby guarantees reliable functioning of the fastening point (B1, B2) and in particular of the spring element thereof. In addition, the fastening point (B1, B2) according to the invention makes it possible to ensure a high functional reliability with comparatively low output if the fastening point (B1, B2) is embedded in a filler material. This is achieved in that the device (1) is cut from a flexibly deformable material, which is provided to be laid around the component (E, F, P) or the fastening point (B1, B2) and be fixed to a surface (ADE) provided on a component (E, F, P) of the fastening point (B1, B2) or adjacent to the fastening point (B1, B2).

Description

Device for covering at least one component of a rail fastening point, fastening point and method for

Covering an attachment point

The invention relates to a device for covering at least one component of an attachment point, in which a rail for a

Rail vehicle is attached to a substrate.

Furthermore, the invention relates to an attachment point in which a rail for a rail vehicle is mounted on a substrate comprising a braced against the ground component, which is a

elastic holding force on the foot of the rail exercises.

Moreover, the invention also relates to a method for covering an attachment point for the attachment of a rail.

Typically, the substrate is a concrete sleeper or plate. However, the invention is also suitable for use on substrates consisting of wood, steel, plastic and the like.

Attachment points of the type in question here are used in particular for fastening rails of trams and the like. In the inner city area, for example, such rails, when laid in the area of a street or a sidewalk, are typically embedded in a filling compound filled laterally to its rail head, which may be, for example, a multi-layered one Flooring of the respective street or the particular walkway can act.

In order to enable optimal in terms of wear behavior and ride comfort mounting the rail, the rails are not rigidly mounted in the respective attachment point in the rule, but are held down resiliently in the direction of the ground. For this purpose have attachment points of the type in question usually

at least one spring element which acts against the foot of the rail and elastically presses the rail against the respective ground. In order to achieve a defined compliance in solid surfaces

To ensure gravity direction, at least one resilient plate may be arranged between the rail foot and the ground. From the prior art known attachment points that constructed according to this principle and for tram rails and the like

are provided, for example, in DE 10 2009 041 12 B4 described.

In order for such fastening points, in particular the spring element, as a critical component for the function of the rail fastening, despite the material surrounding the attachment point, can swing freely in use, in practice at least on the spring element of the respective attachment point a cap is set. The spring element is then seated in its associated, bounded by the cap

Recess and is shielded from the surrounding filler. The recess of the cap is dimensioned so that sufficient for the unhindered movement of the spring element distance between the inner surfaces of the cap and the

Spring element exists.

In order to minimize the noise emissions, rails fixed to fastening points of the type described above can be fastened to their rail webs be covered with molded parts, by which the sound produced when passing over the rail by a rail vehicle to be reduced

(DE 40 04 208 C2).

Against the background of the prior art, the object of the invention was to provide a cost-effective device for covering an attachment point, which is easy to

can customize different designs of attachment points, while ensuring a safe operation of the attachment point and in particular its spring element.

In addition, an attachment point should be created in which a comparatively low cost high reliability is ensured even if the attachment point is embedded in a filler.

Likewise, a method should be mentioned with which can easily cover attachment points for rails for rail vehicles.

With respect to the device for covering an attachment point, the invention has achieved this object in that such a device according to claim 1 is formed.

A task according to the invention solving the above

Attachment point is accordingly designed according to claim 7.

A solving the above object according to the invention

Method comprises the steps specified in claim 13. Advantageous embodiments of the invention are in the dependent

Claims are given below and will be like the general one

Invention idea explained in detail.

A device according to the invention for covering at least one component of an attachment point, in which a rail for a rail vehicle is fastened to a substrate, is accordingly according to the invention

characterized in that the device is a blank of a flexible

deformable material which is intended to be placed around the component or the attachment point and fixed to a present on a component of the attachment point or at a surface adjacent to the attachment point.

In a corresponding manner, an inventive attachment point, in which a rail for a rail vehicle is mounted on a substrate, comprises at least one braced against the ground component and an inventive device, wherein the device to the

Fixing point is placed and fixed to a surface of the device or at a surface adjacent to the attachment point. In an attachment point according to the invention, the covering device according to the invention thus shields the respective at least one component of the attachment point or all functionally essential components of the attachment point from the environment.

The inventive method for covering an attachment point, in which a rail for a rail vehicle is mounted on a substrate, comprises the following steps in a corresponding manner: a) A device designed according to the invention is provided. b) The device is placed on the attachment point so that it protrudes with its side or edge areas laterally beyond the attachment point. c) The protruding beyond the attachment point side or edge regions of the device are applied to a present on a component of the attachment point or at an attachment point adjacent surface and fixed there.

The invention is based on the idea to use for the coverage and shielding of at least the functionally essential component of a rail mounting point a simple blank, which consists of a flexibly deformable material. Such a blank can be placed in the manner of a mat, tarpaulin or the like on the attachment point, so that it covers the attachment point as a whole or at least the critical component. By then the edge regions of the covering device according to the invention against one or more at the attachment point itself or in the

Be placed adjacent existing areas, at least the critical components or the attachment point is wrapped as a whole of the device. As a result, at least the relevant component then sits under a hood formed by the device.

Of course, while the dimensions, shape and arrangement of the ready as a blank covering device can be adapted to the circumstances of each attachment point that after the

According to the invention made wrapping the attachment point as a whole or in addition to each functional critical component other components of

Attachment point are shielded from the device. This embodiment has the advantage that the components of the attachment point can be easily exposed and dismantled, for example, for a repair. The function-critical component to be at least shielded by a device according to the invention is typically the spring element which, in use, exerts an elastic hold-down force on the rail foot of the rail held in the respective attachment point. Depending on the construction of the attachment point, such spring elements can be used in

be carried out differently. For example, attachment points are known whose spring element is e- or s-shaped. However, fastening points have proven particularly useful in which the spring elements are designed as so-called tensioning clamps whose basic shape when viewed in plan view corresponds to the shape of an "ω".

The device according to the invention is particularly suitable for being manually attached to the respective attachment point. Because of the

inventive device own flexibility can be the laying, applying and fixing the blank forming the cover particularly easy to do even with differently configured attachment points artisanal.

By the device according to the invention can thus be easily safe shielding of the critical components of a functional

Reach rail attachment point to the respective environment. Inventive devices are therefore especially for such

Applications suitable in which a liquid or fine-grained filling material, such as liquid concrete, fine gravel, split or gravel is used to cover the respective attachment point after installation of the rail, as is the case regularly, especially in inner-city track construction for trams or light rail vehicles is. Due to the, accomplished by means of the device according to the invention, at a fastening point according to the invention a fastening point according to the invention is particularly suitable to be poured into a stuffed in liquid or free-flowing form filling material. The device according to the invention protects the function-critical component safely against contact with the filling compound. Of course, the blank forming the device according to the invention can be designed such that it not only the spring element, but also other components of the

Shield attachment points against the filling compound. The for a

Cover according to the invention provided by a device according to the invention attachment points comprise in a conventional manner in addition to the already mentioned

- respective spring element

a tensioning device, for example a sleeper screw, for tensioning the spring element,

a guide plate for laterally guiding the rail and for discharging transverse forces occurring when passing over the rail into the ground,

an insulating element arranged between the rail and the spring element for electrically insulating the rail from the ground,

- One or more in particular elastic or dimensionally stable plates which are arranged below the rail to ensure a certain flexibility of the rail in the attachment point in the direction of gravity or to distribute the forces occurring evenly in the ground, and

- A support profile, which carries the other components of the rail mounting point and the rail over a large area supported on the ground. The support profile is typically designed such that it is arranged transversely to the longitudinal extension of the rail and extends on both sides of the rail so that on each of the relevant side on the components of a covered in accordance with the invention rail mounting point can be mounted. The attachment points arranged on both sides of the rail in this case share a support profile.

The rail fastened in an attachment point according to the invention can have a rail web in a manner known per se, at least laterally on the side a damping element is attached to reduce structure-borne noise emissions. In the damping element may be formed a recess into which engages at fully assembled attachment point at least one component, in particular the spring element. The free, outwardly and the attachment point associated surface of the damping element can be used to attach the

Covering device according to the invention can be used by the device is fixed with its the damper element associated edge region of the respective surface.

In order to allow easy mounting, the blank of flexible shaping material forming the device according to the invention may have a central portion whose width and length correspond at least to the width and length of the attachment point, two side sections, one on one and one on one are arranged opposite side of the central portion, and comprise an edge strip extending along the device, which is intended to be fastened to a surface extending along the rail to be fastened. In this case, by forming an incision in the edge strips in the region of the transition from the central section to the respectively adjacent side section, a damping element attached to the rail or to a rail mounted on the rail

existing projection can be used to hold the device in position and to achieve an optimized seal. For this purpose, the respective divided lateral portion (edge portion portion) is pushed under the projection in question, whereas the divided between the two sections

existing edge region is applied to a surface and optionally fixed there, which is present above the projection. A connection section molded onto the central section of the device according to the invention opposite the edge strip can also be used to contact a surface facing away from the rail to be fastened, for example one

Side surface of a component of the attachment point, to be applied and fastened. In principle, the blank forming the device according to the invention can be made of any material which has sufficient resistance to the materials forming the respective surroundings of the attachment point.

In particular, the material should be resistant to rotting and insensitive to contact with moisture and other liquids. At the same time it is advantageous if the material of the blank in addition to the inventively prescribed flexible deformability provides a certain rigidity and tensile strength, so that the device, the weight of the burden on her in use

Can safely absorb filling materials of the environment and at the same time can bridge certain distances in the region of the respective attachment point, without applying directly to each covered component. Materials that provide this combination of features typically consist of a flexible plastic, although it goes without saying that combinations of materials can also be used in order to achieve the respective required property profile

provide. Thus, it is conceivable, for example, the covering device according to the invention of optionally fiber-reinforced tarpaulin materials, as they are for

Cover of cargo and the like can be used, or produce from foams with sufficient tightness, fine porosity and strength. The plastics in question belong to the PE foams, the PUR foams or the PVC materials, with PVC materials in particular being suitable for producing sheet-like blanks.

For fixing the covering device according to the invention can be

always use all means that are suitable for a permanent hold of the covering device on the respective surface. Conceivable are thus all non-positively or positively acting fasteners, such as nails, screws or the like. However, it proves to be particularly practical if the attachment is accomplished by gluing. For this purpose, the voltage applied to the respective surface of the environment or a component of the attachment point areas of the device according to the invention by means of a conventional, for the respective material pairing proven glue to be fixed to the respective surface.

For the attachment of the blank forming the device according to the invention, it is possible to use surfaces which are present on a component of the attachment point or in the vicinity of the attachment point.

Of course, in this case the respective attachment surfaces are selected so that the device according to the invention is built after their assembly in the manner of a hood on the respective critical component of the attachment point, so that a sufficient for each required elasticity and the associated movement of the attachment point is ensured , In the case that the attachment point covered according to the invention comprises a support profile, it is advisable, for example, to use the free side surfaces of the support element

Support profile for attachment of the lateral edge regions of

to use the device according to the invention. The surfaces present in the vicinity of an attachment point according to the invention include

For example, the existing at the top of the rail foot or on the rail web of the rail to be fastened surfaces just as the free

Outer surface of an optionally arranged on the rail web

Damping element. Of course, the surface of the ground on which the rail fastening point is present also counts among the adjacent surfaces. Typical thicknesses of the blanks forming the device according to the invention are, if they consist of a foam, in the range of 5 to 10 mm. By contrast, conventional tarpaulin materials can have a thickness of

0.5-2 mm.

The invention will be explained in more detail with reference to a drawing showing an embodiment. Their figures show each schematically:

1 shows a device for covering a rail attachment point in a plan view. FIG. 2 shows the device according to FIG. 1 in a lateral view; FIG.

FIG. 3 shows a fastening point for a tram rail in a perspective view from above; FIG.

Fig. 4a - 4c the attachment point of FIG. 3 during assembly of the

Device according to Figure 1 in a perspective view.

Fig. 5 shows the attachment point of FIG. 3 in use

after assembly of the device of FIG. 1 in a section transverse to the longitudinal extent of the rail.

The device 1 for covering an attachment point B1, B2 is a blank which is produced in one piece from a flexibly deformable, mat-like foam material, for example a polyurethane foam. The blank has an in

Plan view rectangular central portion 2, on whose one longitudinal side a dovetail-shaped, centrally arranged with respect to the central portion 2 connecting portion 3 is formed. In addition, in each case one side section 4, 5 is attached to the narrow sides of the central section 2

connected. It is from the the connection section. 3

opposite longitudinal side, in which along this longitudinal side extending, strip-shaped edge region 6 of the device 1 in the region of the transition from the central portion 2 to the respective adjacent side portion 4.5 each formed a recess 7,8. In this way, lateral edge region projections 9, 10 are divided off from the edge region 6.

For attachment of the shaped like a grooved rail rail S for a tram not shown here, two attachment points B1, B2 are provided, which are formed mirror-symmetrically with respect to the rail S and jointly erected on a support profile UP. Each of the attachment points B1.B2 each comprises a spring element F designed in the manner of a conventional tensioning clamp, a tensioning element E formed by a conventional sleeper screw, and a guide plate P. designed in the manner of a conventional angled guide plate P.

Said components of the attachment points B1.B2 are mounted on a support profile made of plastic UP, which is aligned transversely to the rail S and between the rail S and the substrate U formed here for example by a concrete threshold. The

Support profile UP has at its lateral ends in each case a parallel to the rail S extending shoulder T1, T2. The shoulders T1, T2 define between them a contact surface AF, on which the rail S is above an elastic intermediate plate ZW. In this case, between the shoulders T1, T2 and the footprint AF each have a groove in the

Upper side of the support profile UP molded.

The angle section of the respective guide plate P, which is supported in a manner known per se on the associated shoulder T1 or T2 and on the other hand forms a lateral guide for the foot SF of the rail S with its contact surface assigned to the rail S, is seated in the respective groove ,

On the upper side of the guide plates P sits in each case a spring element F, which acts with its free spring arms on its associated upper side of the rail foot SF.

The spring elements F are each braced by one of the clamping elements E against the substrate U. For this purpose, the clamping elements E through the middle loop of the respectively associated spring element F and the associated passage openings of the respective guide plate P and the support profile UP screwed into a recessed into the substrate U Dowel.

Further details of the construction and installation of the attachment point B1.B2 are explained in the brochure "System DFF 300 UTS", as of 02/2015, published by Vossloh Fastening Systems GmbH, Werdohl, Germany.

The rail S conventionally designed as a grooved rail comprises, in addition to the rail foot SF, a rail web ST standing thereon, on the sides of which a damping element DE is arranged in each case. From the respective spring element F associated side is in the

Damping elements DE in the region of the attachment point B1, B2 formed in each case one to the rail foot SF and the respective spring element F out open recess A.

After the attachment point B1, B2 has been mounted in a conventional manner, a covering device 1 is mounted on each longitudinal side LS1, LS2 of the rail.

For this purpose, on the side 11 of the device 1 assigned to the respective attachment point B1, B2, in the region of the side sections 4, 5,

Connecting portion 3 and the edge portion 6 each applied a not visible here bead of adhesive.

Then, the device 1 is placed on the respective attachment point B1.B2, that its edge region 6 with the edge region projections 9,10 limiting longitudinal side of the outer surface ADE of the respective

Damping element DE is present and the projection formed by the longitudinal edge LR of the rail foot SF engages in the notches 7.8. The edge region projections 9, 10 engage under the rail foot (FIG. 4 a). If necessary, the edge region projections 9,10 through additionally glued between them and the rail foot SF introduced adhesive.

Now, the edge region 6 is folded upwards so that its occupied with the adhesive bead page 11 on the outer surface of the ADE

Damping element DE is applied and fixed there by means of the adhesive (Fig. 4b).

Subsequently, the side sections 4, 5 of the device 1 with the adhesive bead carried by them are transferred to their associated free one

Longitudinal outside UPa of the support profile UP applied and fixed there by means of the adhesive. Similarly, the connection section 3 with his

Glued adhesive bead against the existing on the free end face of the support profile UP face UPs and there firmly glued (Fig. 4c).

In this way, a hood is formed from the devices 1 mounted above in the manner illustrated in FIGS. 4a-4c above each of the attachment points B1, B2.

Subsequently, the attachment point B1.B2 is embedded in a filling compound M, which is, for example, pourable concrete, and the filling compound M is additionally covered by a cover layer DS, which is, for example, a tar surface common in road construction. The devices 1 thus shield the critical components "spring elements F", "guide plates P" and "clamping elements E" of the attachment point B1, B2 with respect to the filling material M. REFERENCE NUMBERS

1 means for covering the attachment points B1, B2

2 central section of the device 1

3 Connection section of the device 1

4.5 side sections of the device 1

6 Border area of the facility 1

7.8 incisions of the device 1

9,10 Randbereichsvorsprünge the device 1

11 associated with the respective attachment point B1, B2 side of the

Device 1

A recess

ADE outer surface of the respective damping element DE

AF On standing surface of support profile UP

B1.B2 attachment points

D dowels

DE damping element

DS topcoat

E clamping element

F spring element

LS1, LS2 Longitudinal sides of the rail

LR longitudinal edge of the rail foot SF

M filling mass

P guide plate

S rail

SF foot of rail S

ST rail bridge

T1, T2 shoulder of the support profile UP

Underground

UP support profile

UPa Longitudinal outside of the support profile UP created

UPs front surfaces of the support UP

ZW elastic intermediate plate

Claims

1. Device for covering at least one component (E, F, P) of a

Attachment points (B1, B2), in which a rail (S) for a

Rail vehicle is fixed to a substrate (U), characterized in that the device (1) is a blank of a flexibly deformable material, which is provided to the component (E, F, P) or the attachment point (B1, B2 ) and fixed to a surface (ADE) adjacent to a component (E, F, P) of the attachment point (B1, B2) or adjacent to the attachment point (B1, B2).

2. Device according to claim 1, characterized

that they have a central portion (2) whose width and length at least equal to the width and length of the attachment point (B1, B2), two side sections (4,5), one of which at one and the other at an opposite side of the central

Section (2) are arranged, and extending along the device (1) extending edge strip (6), which is intended to be attached to a longitudinally along the rail to be fastened (S) extending surface (ADE).

3. Device according to claim 2, characterized in that, in the edge strips (6) in the region of the transition from the central portion (2) to the respective adjacent side portion (4,5), a recess (7,8) is formed.

4. Device according to claim 2 or 3, characterized in that at the central portion (2) opposite to the edge strip (6), a connection portion (3) is formed, which is intended to be remote from the rail to be fastened (S) Surface (UPs) created and fixed.

5. Device according to one of the preceding claims, characterized

characterized in that it consists of a plastic.

6. Device according to claim 5, characterized in that it consists of a PE foam, a polyurethane foam or a PVC material.

7. attachment point, in which a rail (S) for a rail vehicle on a substrate (U) is fixed, comprising at least one braced against the ground component (E, F, P) and formed according to one of the preceding claims means (1) , where the

Means (1) placed around the attachment point (B1, B2) and fixed to a surface of the component (E, F, P) or to an attachment point (B1.B2) adjacent surface (ADE, UPs).

8. attachment point according to claim 7, characterized in that it comprises a on the ground (U) fixed guide plate (P) on which the rail (S) is guided laterally and on which the spring element (F) sits.

9. attachment point according to one of claims 7 or 8, d a d u r c h

characterized in that the component is a spring element (F) which exerts an elastic hold-down force on the rail (S).

10. attachment point according to one of claims 7 to 9, characterized

in that the rail (S) fastened in it has a rail web (ST) on which a damping element (DE) is fastened at the side, facing away from the rail web (ST)

Exterior surfaces (ADE), the device (1) with a marginal strip (6) is attached.

11. attachment point according to one of claims 7 to 10, d a d u r c h

characterized in that it is erected on a support profile (UP) and the device (1) with at least one section (3) on one of the end faces (UPs) of the support profile (UP) is applied and fixed there.

12. attachment point according to one of claims 7 to 11, characterized

characterized in that it is poured into a filling compound (M).

13. A method for covering an attachment point, in which a rail (S) for a rail vehicle on a substrate (U) is attached, comprising the following steps: a) It is formed according to one of claims 1 to 6

Device (1) provided.

The device (1) is placed on the attachment point (B1, B2) so that it protrudes with its edge or side regions (4,5,6) laterally beyond the attachment point (B1, B2).

The over the attachment point (B1, B2) protruding edge or side regions (4,5,6) of the device (1) are on a on a component (E, F, P) of the attachment point (B1, B2) or on a applied to the attachment point (B1, B2) adjacent surface (ADE, UPs.UPa) and fixed there.

14. The method according to claim 13, characterized in that the fixation in step d) takes place by gluing.

15. The method according to any one of claims 13 or 14, d a d u r c h

characterized in that the device (1) is designed according to claim 3 and the step b) includes an insertion of the sections (7, 8) divided regions of the edge region sections (9,10) below a longitudinal edge (LR), which in the region Foot (SF) of the rail to be fastened (S) is formed.