EP3047070A1

EP3047070A1 - Electrically insulating backing plate for fastening rails

Info

Publication number: EP3047070A1
Application number: EP14771851.4A
Authority: EP
Inventors: Adrian Bednarczyk; Igor Dottai; Martin Gnaczynski
Original assignee: Vossloh Werke GmbH
Current assignee: Vossloh Werke GmbH
Priority date: 2013-09-18
Filing date: 2014-09-18
Publication date: 2016-07-27
Anticipated expiration: 2034-09-18
Also published as: ES2707399T3; CN105683444B; US20160230352A1; CN105683444A; DE102013110288A1; TR201820278T4; EP3047070B1; PL3047070T3; US10214863B2; WO2015040118A1

Abstract

The present invention relates to a plate element for a fastening point at which a rail (S) which is provided for rail vehicles is fastened to a fixed substrate (11), wherein the plate element (1) has a passage opening (4, 5) which leads from the top face (3) of said plate element, which top face is associated with the rail (S) which is to be fastened, to the lower face (2) of said plate element, said lower face being associated with the substrate (11), through which passage opening a fastening element (14, 15) for fastening the plate element (1) on the substrate (11) is guided during use, said fastening element engaging in a dowel (12, 13) which is inserted into the substrate (11), and also a fastening point in which a rail for a rail vehicle is fastened on a fixed substrate. The plate element according to the invention allows a rail for a rail vehicle to be fastened to a fixed substrate and in this way also ensures optimum electrical insulation in unfavourable use conditions. This is achieved by a ring element (8a, 8b; 20) which is composed of an elastically flexible material being seated in the region (6) of the mouth of the passage opening (4, 5) which is associated with the substrate (11).

Description

ELECTRICALLY INSULATING SUPPORT PLATE FOR RAIL FASTENING

The invention relates to a plate element for a

Attachment point, in which a rail provided for rail vehicles is mounted on a solid surface, wherein the plate member leading from its one of the rail to be fastened top leading to its subsurface associated underside

Durchgangsöff has through which in use a fastener for fixing the plate member is guided on the ground, which engages in a recessed into the ground dowel.

Likewise, the invention relates to an attachment point formed using a plate element of the aforementioned type, in which a rail for

Rail vehicles is mounted on a solid surface.

Plate elements of the type in question are typically so-called

"Guide plates" or so-called "shims".

Guide plates are used in rail fastening systems of the type in question here for lateral guidance of to be fastened rail and to intercept and dissipate shear forces that occur when crossing the rail by a rail vehicle. At the same time usually spring elements, so-called "clamps" or the like are supported and guided on the guide plates, which required for holding down the rail to be fastened resiliently retaining force

provide. The guide plates can be designed as so-called "angled guide plates" in which on the subsurface associated underside an angular cross-section paragraph is formed, which sits positively in use in a correspondingly shaped, introduced into the ground recess in use and so optimal derivation of the Operation occurring loads ensured in the ground.

Shims serve in systems for the attachment of rails for rail vehicles, however, on the one hand to support the other components of the respective fastening system over a large area on the respective substrate. On the other hand, these shims are used to regulate the height at which the rail is held above the respective ground. In this way, deviations of the height level between two adjacent fastening points can be achieved in the respective attachment point

compensate that exceed a tolerance range. For this purpose, differently thick or two or more shims stacked on each other can be pushed under the respective rail.

The shims also include so-called

"Ribbed plates", on whose the rail to be fastened associated upper side two parallel to each other and in a width corresponding to the foot of the rail spaced ribs are formed, on which the rail to be fastened is guided laterally in use.

The anchoring of the respective plate element on the solid ground is usually by means of

conventional sleeper screws, bolts or nails, which are screwed or driven into a plastic dowels embedded in the ground.

Optimally, the plastic dowel is doing so

aligned such that the upper edge surrounding its dowel opening is aligned substantially flush with the support surface of the substrate on which the rail to be fastened and the respective parts of the fastening system are supported, practical experience, however, show that such a perfect alignment hardly in practice with the necessary reliability. Therefore, one has gone over to, in the

Underground of the plate member associated region of the mouth of the through hole of the plate member a form a circumferential paragraph. In the space created by the paragraph engages in fully assembled

Attachment point of the respective dowels with his

Plate element associated upper edge, when this edge region protrudes beyond the support surface of the substrate on which the plate member is in use.

In modern rail tracks, the existing rule of conductive steel material rails to

Signal transmission and the like used. This sets one optimal electrical isolation from the ground ahead. Practical experience shows here that, despite time-consuming efforts to separate the rail to be fastened from the ground by means of suitable adapters or the like, there are always electrical bridges between the ground and the rail that last for a long time

to be maintained.

Against the background of the above-mentioned prior art, the object of the invention was to provide a plate element for a fastening point, in which a rail for a rail vehicle on a fixed

Substrate is attached to create, in which an optimal electrical insulation is ensured even under unfavorable conditions of use. Likewise, a correspondingly created attachment point should be specified.

With respect to the plate element is this task

According to the invention has been solved by a plate member having the features specified in claim 1.

A solving the above problem

Fixing point for a rail according to the invention comprises at least the components specified in claim 15.

Advantageous embodiments of the invention are specified in the dependent claims and are explained below as the general inventive concept in detail.

A panel according to the invention for a system for securing rails provided for railway vehicles on a solid ground has in accordance with the above-described prior art, one of its attached to the rail to be fastened top to its bottom surface associated with the passage opening through which in. Use one

Fastening element for fixing the plate element is guided on the ground, which engages in a recessed into the ground dowel.

According to the invention, a ring element made of an elastically yielding material now sits in the area of the mouth of the passage opening assigned to the substrate.

According to the invention, therefore, the area of the plate element, by which in use is formed by using a plate element according to the invention

Attachment point each for securing the

Plate element used on the ground

Fastener engages, from an elastic

Surrounded ring element. This inventive elastic ring element forms a barrier that prevents the ingress of moisture into the coupling region, in which at an attachment point of the invention

Underground, the dowels embedded in the ground and the slab meet each other. In this way, even with an inaccurate alignment of the individual components of an attachment point according to the invention a

electrical contact between the ground and the

Fixing element prevented.

As fasteners can in a mounting point according to the invention, the conventionally for this purpose used sleeper screws, bolts, wedges, nails or the like are used,

The invention is based on the recognition that in conventional plate elements, the

Rail fasteners are used, water or other conductive fluids in the field of

Durchgangsöff tion of the plate member collects, in particular, such moisture is problematic, which rises due to capillary action coming from the underground in the Durchgangsöff, when in use in the through hole, a fastener and only a thin gap between the Durchgangsöff enclosing inner surface and the peripheral surface of the

Fastening element remains, or passes from the top of the plate member ago in the through hole.

By the invention, a passage of moisture through the passage opening is prevented by a barrier is established by means of the elastic ring member.

By virtue of its own elasticity, the ring element provided according to the invention on the plate element is in use either on the screwed into the plug or in the dowel

driven fastener or the dowel itself. In this way, the passage opening is protected against ingress of water even if, in a rail fastening system mounted using a panel element according to the invention, the associated dowel is not perfectly in relation to the support surface of the rail

Underground is aligned, on which the

Rail fastening system is built. The inventively provided ring element is attached to the plate member that it is present at the time of installation, ie not, such as a

Sealant must be applied before placing the plate member on the substrate or the plate member, but is brought from the plate member. In this way, a very simple assembly is possible.

The elastic ring element is mounted so that a dowel protruding in the respective attachment point on the ground with its upper, on the

Underground protruding edge in use against the elastic element presses and so a seal

is made, which prevents electrical connection between the respective substrate into which the dowel is embedded, and the fastening element which is inserted through the through hole and screwed into the dowel to fix the plate member on the ground.

To fulfill its sealing function is a

According to the invention ring element at least in an aligned parallel to the longitudinal axis of the passage opening of the plate member axial direction or in Umfangsrieht ung elastic, wherein, depending on the particular design of the ring member, an optimal benefit can be achieved if the ring member in all spatial directions

is elastic.

In the case that the ring element is elastically yielding in the circumferential direction, the sealing of the coupling point, on which the dowel, the fastening element, the substrate and the plate element in a inventive Fixing point meet, are optimized by the clear width of the ring opening of the

Ring element is smaller than the inside width of the

Through opening in the region of the mouth in which the ring element is seated.

In order to achieve a secure seal even with anchors whose upper edge region is below the level of AufStandfläche the substrate, it may be expedient if the ring member protrudes in unmont-ended state on the underside of the plate member.

As a result, the ring member is compressed during assembly on the respective substrate to the extent that it protrudes in the unassembled state on the underside of the plate member, with the result that also in this way a barrier against the passage of

Moisture is formed by the ring element, which then presses elastically yielding against the ground »

An optimal sealing of the passage opening against the passage of moisture can of course be achieved in that the ring element in use elastically yielding against each guided through the through-hole fastener and on the other hand also elastically yielding against the ground or the upper edge of the respective associated dowel presses.

The inventively provided for sealing the passage opening of the plate member ring element can

Basically consist of any elastic material, on the one hand a sufficient resistance under the has practical conditions occurring conditions and on the other hand is sufficiently dauerereiastisch. In question come to this rubber materials, such as those used for the manufacture of sealing rings used in pipeline construction, and the like. Likewise, that can

Ring element of a closed-cell foam, made of EPDM (ethylene-propylene-diene rubber), PUR (polyurethane), NBR (nitrile-butadiene rubber), a thermoplastic elastomer such as TPE or TPU, and the like.

As already mentioned, it can be at a

Plate element according to the invention act around a guide plate, which typically has a front face a contact surface, with which it rests in use laterally at the foot of the rail to be fastened.

Likewise, it may be at a inventive

Plate element act around a shim, which is at least partially disposed in use under the foot of the rail to be fastened in use. This includes, as also mentioned above, also ribbed plates and the like.

If, in a plate element according to the invention, the ring element is intended to act against a peripheral surface of the guided through the through-hole fastener in use, it may be useful to increase the reliability of the seal when the ring member carries at its ring opening limiting inner peripheral surface a sealing lip which in use close to the Shaft of the relevant fastener is applied. It goes without saying that the ring element in

Circumferential direction or in its height direction may be elastic, with a combination of these properties leads to optimum sealing effect.

In principle, it is expedient to use an elastic element in accordance with the invention independently of the

geometric conditions in the respective mouth region of the Durchgangsöff order the plate member.

The assembly of a ring element according to the invention at its location associated with the plate element according to the invention can be simplified if in the field of

Mouth of the through hole in which the ring member is seated, a circumferential step is formed, on which the ring member is supported.

It may be expedient here if the ring element sits in a form-fitting manner in the region of the mouth of the passage opening assigned to it.

The seat of the ring member in the mouth of the associated passage opening can be secured by the fact that the ring member frictionally in the him

associated region of the mouth of the through hole is held. For this purpose, the optionally positive and non-positive connection may be formed, for example, as a clip, latching or press connection. In particular, in the case of a latching connection, this can be designed so that it can be solved, for example, in the context of maintenance or renovation work, for replacing the ring element, so that the ring element by a replaced new similar element and the plate element again receives a new sealing function.

Alternatively or additionally, it may be expedient, the ring element in the mouth of the passage opening

glued or otherwise connected cohesively. This includes in the case that the plate member consists essentially of plastic, the

Possibility to attach the ring element to the plate element

be sprayed so that a non-detachable one-piece composite of ring member and plate member is formed.

Is it the plate element of

according to the invention to a guide plate, the in

Assembly position acts with its contact surface laterally against the foot of the rail to be fastened, such a plate element is typically in a

Rail attachment point is used, which is erected on a solid support typically formed by a concrete sleeper or plate and in addition to the respective plate member a supported on the plate member spring element, which with at least one

Holding arm which produces the required for holding down each rail to be fastened elastic hold down force, embedded in the ground dowel, which is aligned with the passage opening of the plate member, and a fastener comprises, which is guided by the associated opening of the plate member and screwed into the dowel to clamp the spring element and to fix the position of the plate member relative to the ground, wherein the elastically yielding ring element of the plate element with the Inner peripheral surfaces of its annular opening rests close to the ümfangsflache of the fastener or is compressed in a direction parallel to the longitudinal axis of the passage opening direction that it acts with a contact pressure against the ground.

If the plate element according to the invention is a shim plate, such a plate element typically becomes in a rail attachment point

used on a likewise typically formed by a concrete sleeper or plate fixed

Underground is built and next to the respective

Plate element a supported on the plate member guide plate, which acts with its contact surface laterally against the rail of the rail to be fastened and at the same time on the plate member in a guer to

Rail directed direction is fixed, a supported on the guide plate spring element with

at least one retaining arm which is required for holding down the respective rail to be fastened elastic

Keeping force generated, one in the underground

recessed dowel, which is aligned with the passage opening of the plate member, as well as a

Fastening element, which is guided by the associated opening of the plate member and screwed into the dowel to brace the spring element and to fix the position of the plate member relative to the ground, wherein the resilient member of the plate member with the inner peripheral surfaces of his

Ring opening close to the outer surface of the

Fastening means or so in a direction parallel to the longitudinal axis of the passage opening direction is compressed, that it acts with a contact pressure against the ground.

If the plate element according to the invention is a ribbed plate, on the upper side of which at least one rib is formed, on which the foot of the rail to be fastened is guided in assembly pitch, then such a plate element typically becomes one

Holding arm which produces the required for holding down each rail to be fastened elastic hold down force, a submerged anchor, which is aligned with the passage opening of the plate member, and a fastener comprises, which is guided by the associated opening of the plate member and screwed into the dowel to clamp the spring element and to fix the position of the plate member relative to the ground, wherein the elastically yielding ring element of the plate element with the

Inner peripheral surfaces of its ring opening close to the

Peripheral surface of the fastener is present or so compressed in a direction parallel to the longitudinal axis of the passage opening direction that it acts with a contact pressure against the ground.

The invention is based on

Embodiments explained in more detail. Each show schematically: Figure 1 is a formed as a shim plate element in a perspective view.

Fig. 2 shows a detail of the .Plattenelements according to FIG. 1 in a perspective view of the

Bottom;

FIG. 3 shows the plate element according to FIG. 1 in a section along the section line X-X shown in FIG. 2; FIG.

FIG. 4 a in the plate element according to FIG. 1

provided elastic ring element in.

Longitudinal section;

Fig. 5, the ring element of FIG. 4 in one

perspective view;

Fig. 6 a using the plate member of FIG

1 constructed system for mounting a rail for a rail vehicle on a substrate;

Fig. 7 shows an alternative embodiment of an elastic

Ring element in longitudinal section;

Fig. 8, the ring element according to Fig, 7 in one

perspective view. Trained as a Unteriegplatte plate element 1 is part of a rail fastening system, as it

for example, in German Patent Application 10 2013 102 531.5 and the Chinese filed under claiming the priority of this application

Utility Model 201320209968.6 is described. The content of the German patent application and the Chinese

Utility model is hereby incorporated by reference for the purposes of supplemental explanation in the disclosure of the present application.

The plate element 1 has a flat underside 2 and an upper side 3 aligned parallel thereto. In the lateral end portions of the plate member 1, two through holes 4, 5 are formed, each leading from the upper side 3 to the lower side 2. The

Durchgangsöff 4.5 are spaced in such a way

arranged, that in each case one of them in mounting position laterally to the foot of the not shown here, on the

Top 3 of the plate member 1 to be supported rail seat.

As is apparent from Figures 2 and 3, is in the

Area 6, in which the circular in cross-section

Durchgangsöff openings 4.5 each on the bottom 2 of the plate member 1 open, a circumferential shoulder 7 formed. In the base of the paragraph 7, two slot-shaped grooves 7a, 7b are additionally formed opposite each other, which are arranged at a small distance from the respective through hole 4.5 and axially parallel to the longitudinal axis L of the respective

Passage opening 4.5 extend. The grooves 7a, 7b form the movement spaces for each one associated, over the top 3 of the plate member 1 protruding, integrally formed on the plate member 1 arm

1a, 1b, 1a ', 1b', on the one hand, delimits the respective opening 5, 6 in the region of the grooves 7a, 7b and, on the other hand, carries latches 1c, 1d at its free ends.

On the shoulder 7 in each case sits a ring element 8a, 8b, for example, a rubber-like, elastic

compliant material is made. The height H of the respective ring element 8a, 8b, measured in the direction of the longitudinal direction L of the through-openings 4.5, is dimensioned such that the ring element 8a, 8b is not yet

assembled, unloaded state (Fig. 2) on the

Bottom 2 of the plate member 1 protrudes. In this case, in this state, the diameter of the annular opening 9 delimited by the ring element 8a, 8b corresponds to the diameter of the respective passage opening 4, 5.

At its the bottom 2 of the plate element. 1

associated end face 8c are two concentric

arranged and formed by a respective web against each other, against the ring opening 9 and the outer peripheral side delimited circumferential grooves 8c, 8d formed by the

Elasticity of Ringeiemente 8a, 8b in the area

is additionally strengthened, with which the ring elements 8a, 8b act in use against the support surface 10 of a substrate 11, on which the plate member 1 sits in use.

On their side opposite the grooves 8c, 8d, the ring-shaped elements 8a, 8b each have a projection 8e, 8f, the shape of which is in each case slightly oversized slit-shaped grooves 7a, b is adjusted. For attachment, the projections 8e, 8f of the ring elements 8a, 8b pressed into the associated grooves 7a, 7b, until the respective

Ring element 8a, 8b sitting on his assigned paragraph 7. Due to the material of each one piece

trained projections 8a, 8b own elasticity, the projections 8e, 8f thereby slightly compressed, so that they sit in the muzzle region 6 of the respective through hole 4.5 positively and non-positively in the respective groove 7a, 7b and the respective

Ring element 8a, 8b is held on the plate member 1.

For mounting an attachment point B for a

Conventional rail S for a rail vehicle, the plate member 1 with its bottom 2 on the

On the support surface 10 of the example by a

Concrete threshold or concrete slab formed solid

Underground 11 set. In the substrate 11 dowels 12,13 are inserted, which are aligned in alignment with their respective associated through hole 4.5.

Provided that the dowels 12,13 properly aligned exactly so that their upper edges, the respective

Surround dowel opening, aligned flush to AufStandfläche 10 of the substrate 11, so sit the

Ring elements 8a, 8b on the respective dowels 12,13 surrounding edge of the substrate 11. However, is one of the dowels 12,13 with its upper edge on the

On the surface 10, the respective presses

Ring element 8a, 8b against this edge. Regardless of how the contact comes about, the ring element 8a, 8b is compressed during assembly due to the dimensioning of its height H so that it with a certain pressure against the respective abutment "edge region of

Substrate 11 "or" upper edge of the respective dowel 12,13 "presses

Penetrate the contact area by moisture to prevent.

Along with the compression due to the contact with the substrate 11 or the upper dowel edge, the elastic material of the ring elements 8a, 8b deviates in the direction of the respective annular opening 9, so that the ring elements 8a, 8b with their inner surfaces bounding the respective annular opening with slight pressure press against the surfaces of serving as fasteners sleeper screws 14,15, of which one by one of the

Through holes 4.5, inserted and screwed into the respective associated dowel 12,13 to each clamp a tension clamp 16,17, which generate the elastic hold-down force required to hold down. In this way, a double sealing effect by the

Ring elements 8a, 8b causes.

The tensioning clamps 16, 17 are each seated on a guide plate 18, 19, which in each case sit on one of the sections of the plate element 1 projecting laterally beyond the foot F of the rail S and laterally engage with their end face which is associated with the rail foot F.

Rest on rail foot F. In this case, the guide plates 18,19 each have a Durchgangsöff on, which is aligned in alignment with the associated Durchgangsöff 4.5 and through which the respective associated fastener 14,15 is inserted.

For assembly, the plate element 1 has been provided with pre-mounted on him guide plates 18,19. By grasping the arms la, 1b, la ', 1b ¹ of the plate member 1 through the through holes of them, respectively

associated guide plates 18,19 and lock with their notches 1c, Id with the upper peripheral edge, the

Through opening of the respective guide plate 18,19 limited. In this way, the guide plates 18,19 are positively held releasably attached to the plate member 1 and can work together with him as a unit on the

To be placed on floor space 10.

In the figures 7 and 8, an alternative embodiment of a ring member 20 is shown, which instead of

Ring elements 8a, 8b can be used. The like the ring elements 8a, 8b in one piece from an elastic

compliant, electrically non-conductive

Plastic material manufactured ring member 20 is formed in the manner of a sleeve with a cylindrical sleeve body 21 and has on its outer peripheral surface

latch-like circumferential projections 22. In addition, a hat-like circumferential collar 23 is integrally formed on one end face. The collar 23 is slightly bulged, so that its free end face 24 protrudes slightly beyond the edge, which limits the mouth of the ring opening 25 of the ring member 20 in the region of the collar 22.

For mounting, a ring member 20 is in each case with its sleeve body 21 in one of Durchgangsöff openings 4.5 of Pressed plate member 1 until the collar 23 of the

respective ring member 20 on the shoulder 7 of

associated through hole 4.5 sits. In this case, the projections 22 are elastically deformed, so that the respective ring element 20 after pressing in and form

Friction also strong in the respective

Through opening 4.5 is held.

The thickness of the collar 23 and its Auswöibung are chosen so that the collar 23 when placing the

Plate member 1 is elastically compressed on the AufStandfläche 23 and so ensures a secure seal between the plate member 1 and the substrate 11 in the region of the mouth 6 of the respective Durchgangsöff 4.5. At the same time, the ring element 20 rests tightly against the inner surface of its annular opening 25 on the peripheral surface of the fastening element 14,15 guided through the annular opening 25 when the fastening point B is completely assembled, so that here further protection against the passage of moisture and the formation of electrically conductive bridges is formed.

BEZÜGSZEICHEN

1 plate element

la, 1b arms

la ', 1b' arms

lc, ld resting the arms la, 1b

2 flat bottom of the plate element. 1

3 flat top of the plate element. 1

4.5 through openings of the plate element. 1

6 area in which the through holes 4.5

each on the bottom 2 of the plate member 1 open,

7 paragraph

7a, 7b grooves

8a, 8b ring elements

8c, 8d grooves

Se, 8f projections

9 ring opening

10 AufStandfläche

11 underground

12,13 dowels

14,15 sleeper screws {fastener)

16,17 tension clamps

18,19 guide plates

20 ring element

21 sleeve body of the ring member 20th

22 protrusions of the ring member 20th

23 collar of the ring member 20th

24 free end of the collar 23

25 ring opening of the ring member 20th

B attachment point

F foot of the rail S

H height of the respective ring element 8a, 8b

L longitudinal direction / longitudinal axis of the through holes

4.5

S rail

Claims

PATENT CLAIMS

1. Plate element for an attachment point in which a rail (S) intended for rail vehicles is attached to a solid surface (11), the plate element (1) being one of its own

fastening rail (S) assigned top side (3) to its underside (11) assigned to the base (11) leading through opening (4,5) through which a fastening element (14,15) for fastening the plate element (1) in use the subsurface (11), which engages in a dowel (12,13) embedded in the subsurface (11), which means that there is a sign in the area (6) of the mouth of the through opening (4,5) assigned to the subsurface (11). Ring element (8a, 8b; 20) made of an elastically flexible material sits.

2. Plate element according to claim 1, d a d u r c h

g e k e n n s e i c h n e t, that s that

Ring element (8a, 8b; 20) is designed to be elastic in the circumferential direction,

3. Plate element according to claim 2, d a d u r c h

marked that Ring element (8a, 8b; 20) has a ring opening (9), the clear width of which is smaller than the clear width of the passage opening (4,5) in the area (6) of the mouth in which the ring element (8a, 8b; 20) sits.

4. Plate element according to one of the above

Claims, d a d u r c h

g e k e n n s e i c h n e t, that s that

Ring element (8a, 8b; 20) in a parallel to

Longitudinal axis (L) of the through opening (4.5)

aligned direction is elastically flexible.

5, plate element according to claim 4, d a d u r c h

g e k e s e i c h n e t, that s that

Ring element {8a, 8b; 20) when unassembled

Plate element (1) over the underside (2) of the

Plate element (1) protrudes.

6, plate element according to one of the above

Claims, d a d u r c h

g e k e n n s e i c h n e t, that s that

Plate element (1) is a guide plate which has a contact surface on the front side with which it rests laterally on the foot (F) of the rail (S) to be fastened during use.

7. Plate element according to one of claims 1 to 5,

characterized in that the plate element is a backing plate which is in Use is arranged at least in sections under the foot (F) of the rail (S) to be fastened.

8, plate element according to one of the above

Claims, d a d u c h

g e k e n n s e i c h n e t, that s that

Ring element (8a, 8b; 20) carries a sealing lip on its inner circumferential surface delimiting its ring opening (9), which is close to the shaft of the when in use

Fastening element (14,15) rests.

9. Plate element according to one of the above

Claims, d a d u r c h

g e k e n n n e t, that s in the

Area (6) of the mouth of the through opening (4,5), in which the ring element (8a, 8b; 20) sits

a circumferential paragraph is formed on which the

Ring element (8a, 8b; 20) is supported.

10, plate element according to one of the above

Claims, d a d u r c h

g e k e n n s e i c h n e t, that s that

Ring element (8a, 8b; 20) in a form-fitting manner in the area (6) of the mouth assigned to it

Through opening (4.5) sits.

11. Plate element according to one of the above

Claims, d a d u r c h

marked that Ring element (8a, 8b; 20) non-positively in the area (6) of the mouth assigned to it

Through opening (4.5) is held.

12. Plate element according to claim 11, d a d u r c h

g e k e n n s e i c h n e t, that s that

Ring element (8a, 8b; 20) is releasably locked to the plate element.

13. Plate element according to one of claims 1 to 11, d a d u r c h g e k e n n z e i c h e t, that it is made of plastic and the ring element

(8a, 8b; 20) is cohesively connected to the plate element.

14. Plate element according to claim 13, d a d u r c h

g e k e n n s e i c h n e t, that s that

Ring element (8a, 8b; 20) is molded onto the plate element (1).

15. Attachment point in which a rail for a

Rail vehicle on a solid surface

is attached, comprising one according to one of

Plate element (1) designed in claims 1 to 14, a dowel embedded in the base (11).

(12,13), and one guided through the through opening (4,5) of the plate element (1) and into the dowel

(12,13) screwed-in fastening element (14,15) for attaching the plate element (1) to the surface (11).