EP2386687B1 - Guide plate for lateral guidance of a rail and system for attaching a rail to a base - Google Patents

Abstract

The plate (3) has an insulator element (19) which is placed in a foot (F) of the rail to be fastened and a spring element (13) acts on the foot of the rail through the insulator element. The insulator element is mounted on the guide plate, and is freely pivoted about the guide plate from a pre-mounting position to a mounting position. An independent claim is included for system for fastening rail to base.

Description

The invention relates to a guide plate for laterally guiding a rail to be fastened to a substrate for rail vehicles, according to the preamble of claim 1.

Likewise, the invention relates to a system for mounting a rail on a substrate, which comprises a guide plate, a spring element which exerts a hold-down force on the rail when the system is fully assembled via an at least one spring arm, an insulator element which, when the system is completely assembled, is assigned between the rail and the rail End of the spring arm and the rail is seated, so that the spring element acts on the rail via the insulator element, and comprises a clamping element for tensioning the spring element.

A guide plate and a fastening system of the aforementioned type are known from DE 20 2009 004 399 U1 known. In the known system carries the guide plate at its the rail to be fastened associated front side extending parallel to the front side insulator element for applications in which a high electrical insulation of the rail is required or in which as a result of using a non-insulating anchorage in the respective underground a separate insulation for Rail is required. In the case of a fully assembled system, this insulator element sits on the foot of the rail to be fastened in such a way that the spring element which applies the hold-down force acts on the rail via the insulator element. In this way, the rail is insulated from the conductive elements of the rail fastening system.

In order to simplify the assembly of the known system so that it can be handled safely even with the help of automatically operating assembly machines, the insulator element is firmly connected to the guide plate. The fixed connection of the insulator element has the additional advantage that the insulator element is held captive on the guide plate and loose components are avoided in the field of construction site.

Thus, despite the fixed connection between the insulator element and guide plate, the insulator element can follow the movements of the rail and the spring element, without affecting the pressure exerted by the spring element hold-down force, a predetermined breaking point is provided in the transition region between the insulator element and the guide plate, which breaks when clamping the spring element is exceeded a certain load.

For certain applications, the above-described fixed arrangement of the insulator element on the guide plate is problematic in that the insulator element protrudes in the direction of the space, which is taken in the fully assembled state of the rail to be fastened. Thus, existing rail fasteners using the known combination of guide plate and insulator element can be modernized in a particularly simple manner, if no new rail to be mounted. However, the known guide plates can not be used with the fixedly attached to them insulator elements for the installation of new rails. A re-assembly with minimal effort requires that the guide plates and other components of the respectively used fastening systems provided in the respective attachment point are first preassembled, then the rail is placed in the space bounded by the guide plates and then the fastening systems are completely assembled. In such a procedure, a fixedly attached to the guide plate insulator element would thus project exactly into the room in which the rail should be set.

This problem does not exist when in a system for attaching a rail in the out of the DE 20 2007 018 500 U1 known manner trained insulator element is used. The insulator element is also made of an electrically non-conductive material here. This shows that Insulator element on a receptacle in which an end portion of a spring element is positively seated, which exerts the required hold-down force on the rail with fully assembled system. In addition, the known insulator element has a contact surface on its underside assigned to the rail foot. About this contact surface, the insulator element is always guided safely when it is pushed together with the spring element from a arranged on the guide plate pre-assembly in the final assembly position on the rail.

In assembly situations in which it is not possible due to the structural conditions or the respective available assembly aids, the isolator element in the manner described above already during pre-assembly permanently coupled with the respectively provided spring element, the insulator elements must each be as separate components between the rail and tension clamp are placed. Under the harsh conditions prevailing in practice, this usually proves difficult due to the limited size of the insulator element. So it may happen during manual assembly that the small insulator is forgotten by the fitter or lost without this being noticed. In addition, elaborate manipulators must be provided for automatic assembly in order to ensure correct positioning of the insulator element.

Against the background of the prior art explained above, the object of the invention was to provide a guide plate and a system for fastening a rail to create that can be easily mounted and ensure safe positionally correct positioning of the insulator element even under unfavorable conditions.

With respect to the guide plate, this object has been achieved in that the guide plate has the features specified in claim 1.

With regard to the system for fastening a rail, the solution according to the invention of the above-mentioned object according to the invention consists in the fact that such a system is designed according to claim 12.

Advantageous embodiments of the invention are set forth in the dependent claims and, like the general inventive idea are explained in detail below.

In accordance with the above-mentioned prior art, a guide plate according to the invention for laterally guiding a rail to be fastened by means of a spring element rail for rail vehicles an end face against which the rail is supported in the mounting position, and on the foot of attachable insulating element to be fastened on, over which the spring element acts in the mounting position on the foot of the rail.

According to the invention, the insulator element is now pivotably mounted on the guide plate. In this way, on the one hand the insulator element is captive on the Fixed guide plate, so that it regardless of whether the mounting of the guide plate and the insulator element is done manually or automatically, it can not be forgotten or lost. On the other hand, it permits its inventively pivotable arrangement on the guide plate, the insulator element easily from a pre-assembly in which it is positioned so that the space required for the placement of the rail is free to pivot in a mounting position in which it sits on the rail ,

The invention thus provides a guide plate and a correspondingly designed system for fastening a rail, with which, even under unfavorable installation conditions, a positioning of the insulator element which satisfies the respective requirements is ensured at any time in a particularly simple manner.

In principle, the inventive pivotable arrangement of the insulator element on the guide plate can be solved by any type of joint, which allows the insulator element to pivot from its pre-assembly position, in which the insulator element is arranged outside the space occupied by the rail to be fastened, into its final assembly position , A particularly practical, particularly easy to handle embodiment of the invention results in this case when in a guide plate according to the invention or a suitably designed system, the insulator element about a parallel to the end face of the guide plate aligned pivot axis is pivotable. Since the end face in each case parallel to the rail to be fastened runs, in this orientation of the pivot axis, the insulator element can be folded by a particularly simple pivoting movement from the pre-assembly into its seated on the rail final assembly position. Likewise, it is possible in this case in a simple manner, to pivot for storage and transport combined with the guide plate insulator element in a position in which it is arranged in front of the end face of the guide plate. When arranged in this storage position insulator element, the guide plate occupies a minimum height, without the insulator element must be separated from the guide plate.

Depending on its shape, the type of spring element used or the structural conditions, it may be expedient to store the insulator element in each case only in a bearing on the guide plate. A particularly robust storage, however, results when the insulator element is pivotally mounted about two pivot bearings. This is especially true when the insulator element is used in combination with a W-shaped, used as a spring element tensioning clamp whose spring arms each act together on the insulator element on the rail.

Since guide plates of the type in question here are mirror-symmetrical with respect to a center axis aligned normal to its end face, a particularly expedient design of the guide plate results when the pivot axes of the pivot bearings are aligned coaxially with one another Thus, the pivot bearings can also be arranged symmetrically to the relevant central axis.

The pivotable arrangement of the insulator element on the guide plate can be realized, for example, in that the insulator element has at least one pivot arm on which a bearing element is formed, which forms a pivot bearing for the insulator element together with a correspondingly shaped bearing element of the guide plate. In one bearing element may be a pin and the other bearing element is a recess in which the pin is rotatably mounted. In this case, the pin of the guide plate and the recess may be assigned to the insulator element. Of course, in the sense of a kinematic reversal, a reverse arrangement of the bearing elements is conceivable. In order to enable a subsequent or automatic tolerance compensation, for example, between the final assembly position of the insulator element and the spring element, the respective recess may be formed as a slot in which the pin is guided rotatably and displaceably. In the event that the insulator element is mounted in two pivot bearings on the guide plate, this can also be achieved by the fact that the pivot arms of the insulator element are sufficiently elastic in order to spread them for mounting on the guide plate can.

An optimum form of the insulator element for today's overwhelming number of applications is given when the insulator element has an elongated basic shape and extends parallel to the end face of the guide plate.

On the one hand cost-effective and at the same time both in terms of the insulating effect and in terms of their weight particularly favorable configuration results from the fact that the guide plate and the insulator element are made of plastic. The production of guide plate and insulator element can be done in this case by injection molding, preferably polyamide is processed with glass fiber reinforcement. In the case that according to the invention existing between the insulator element and guide plate hinge is formed in the manner explained above by a combination of pin and receptacle, the joint can be formed by a mold slide in the tool. This makes it possible to produce the assembly formed from guide plate and insulator element without further intermediate or assembly steps in one production step. The result of the mold slide between pin and recess of the joint connection game contributes in this case to compensate for tolerances in the assembly of components on the site at.

Another practical embodiment of the guide plate according to the invention improving embodiment of the invention is characterized in that at least one locking element is provided, on which the insulator element is releasably held in the pre-assembly. In the same way, at least one locking element may be provided on which the insulator element is held in a storage position in which the bearing element is located in a position arranged in front of the end face.

Fig. 1

ein System zum Befestigen einer Schiene auf einem festen Untergrund in seitlicher teilgeschnittener Ansicht;

Fig. 2

eine Führungsplatte mit einem Isolatorelement in einer Vormontagestellung in seitlicher Ansicht;

Fig. 3

die Führungsplatte mit dem Isolatorelement gemäß Fig. 1 in an einer Schiene angesetztem Vormontagezustand in einer perspektivischen Ansicht;

Fig. 4

die Führungsplatte mit dem Isolatorelement in einer für die Aufbewahrung oder einen Transport vorgesehenen Lagerstellung in seitlicher Ansicht.

The invention will be explained in more detail by means of exemplary embodiments. Each show schematically:

Fig. 1

a system for securing a rail on a solid surface in a partially sectional side view;

Fig. 2

a guide plate with an insulator element in a pre-assembly position in a side view;

Fig. 3

the guide plate with the insulator element according to Fig. 1 in preassembled state on a rail in a perspective view;

Fig. 4

the guide plate with the insulator element in a designated for storage or transport storage position in a lateral view.

This in Fig. 1 shown system for fastening a rail S on a formed for example by a concrete sleeper base 2 comprises a formed in the manner of a conventional angle guide plate guide plate 3, against the flat end face 4, the rail S is supported with the longitudinal side of its rail foot F.

The rail S is in a conventional manner via an elastic intermediate layer 5 on the substrate 2. The elastic intermediate layer 5 ensures sufficient compliance of the rail S in the attachment point, by the system 1 and a correspondingly designed, arranged on the opposite side of the rail, not shown here fastening system is formed.

At the lower edge of the end face 4, a projection 6 protruding in the direction of the rail S is integrally formed on the guide plate 3, which extends over the width of the end face 4 and engages under the rail foot F during the finished assembly. The projection 6 limited in this way the way by which the rail S lowers when crossing a rail vehicle, not shown here.

On its rear side remote from the end face 4, the guide plate 3 has an angle section 7, over which it is guided in a manner known per se on the one hand into a groove 8 formed in the base 2 and on the other hand supported against a shoulder 9 formed on the base 2.

On the free top 10 of the guide plate 3 are shaped elements, such as a parallel to the end face 4 extending groove 11 and a centrally disposed, abutting the end face 4 survey 12 are formed, which serve to guide a conventional W-shaped tension clamp formed spring element 13. In the assembled position, the middle loop 14 of the spring element 13 is guided on the elevation 12, while the respective transition between the middle loop 14 and one of the two spring arms 15 of the spring element 13 is seated in the groove 11. About their respective free end portion 16, the spring element 13 exerts in fully assembled system 1 the required elastic holding force on the rail foot F off.

For bracing its spring element 13, the system 1 additionally comprises a tensioning element 17 designed, for example, as a conventional tensioning screw, which is guided through a through opening which extends into the guide plate 3 at a central location and extends from the upper side 10 to the contact surface 18 resting on the substrate 2 embedded in the ground 2, not shown anchorage is held. The clamping element 17 is here indicated for the sake of clarity only by a dashed line.

On the guide plate 3, an insulator element 19 is pivotally mounted. The insulator element 19 has an elongated shape and extends parallel to the end face 4 over its entire width. At the narrow end sides of the insulator element 19 each have a pivot arm 20,21 is formed. The pivot arms 20, 21 are shaped in such a way that they engage around the guide plate 3 laterally in a direction substantially perpendicular to the insulator element 3 in their region adjoining the end face 4.

In the end portions of the pivot arms 20,21 each formed as a passage opening recess 22 is provided, in which engages a formed on the guide plate 3 in its adjacent to the end face 4 side portion 23 and laterally outwardly from the guide plate 3 projecting pin 24. The outside diameter of the Pin 24 is smaller by a certain undersize than the inner diameter of the recess 22, so that sufficient to compensate for tolerances game 25 between pin 24 and recess 22 is present. The pins 24 and their respective associated recess 22 together each form a pivot bearing L1, L2 around which the insulator element 19 is pivotable. By coaxially aligned pin 24 while a parallel to the end face 4 is parallel aligned pivot axis X defined by which the insulator element 19 from a pre-assembly in which it above the top 10 of the guide plate 3 outside the space required for the placement of the rail S space R. located ( Fig. 2 ), can be pivoted into its mounting position in which it lies with its support surface 26 on the rail foot F ( Fig. 1 ).

In the upper side of the insulator element 19 there is formed a receptacle 27 likewise extending in the longitudinal direction of the insulator element 19 and parallel to the end face 4, in which the free ends of the spring arms 15 of the spring element 13 are seated when the system 1 is fully assembled.

In order to preclude a collision with the elevation 12 of the guide plate 3 during pivoting, a recess 28 is formed in the elevation 12 associated longitudinal side of the insulator element 19, whose width and depth are dimensioned so that the insulator element with sufficient clearance over the elevation 12 of time can be swiveled.

On both sides of the guide plate 3 is in the region of the adjacent to the end face 4 side portion 23 of the Guide plate 3 each formed a shoulder 29 which carries an upwardly projecting catch 30. The catch 30 cooperates with latching recesses 31, 32 which are formed on the circumference of the free end sections of the swivel arms 20, 21. In each case, the pre-assembly position is marked by the one latching recess 31, while the final assembly position is characterized by the other latching recess 32, in which the insulator element 19 rests on the rail foot F. The second recess 32 is formed so large that it allows a largely force-free pivoting of the insulator element 19 over an angular range sufficient to position the insulator element 19 at different thickness rail feet F in the correct position. Similarly, the angular range is sufficient to bring the insulator element 19 for storage and transport in a storage position in which it is arranged in front of the end face 4 of the guide plate 3 and its support surface 26 is aligned substantially parallel to the contact surface 18 of the guide plate 3 ( Fig. 4 ). The latching recesses 31, 32 are each shaped in such a way that the isolator element 19 can be easily moved out of the respective latching position by utilizing the clearance 25 present in the region of the pivot bearings L1, L2.

REFERENCE NUMBERS

1

System for fastening a rail S

2

firm ground (concrete sleeper)

3

guide plate

4

End face of the guide plate 3

5

elastic intermediate layer

6

Projection of the guide plate 3

7

Angular section of the guide plate 3

8th

Gutter of the Underground 2

9

Shoulder of the underground 2

10

free top of the guide plate 3

11

Groove of the guide plate 3

12

Survey of the guide plate 3

13

Spring element (tension clamp)

14

Middle loop of the spring element 13th

15

Spring arm of the spring element 13

16

free end portion of the spring element 13

17

clamping element

18

Aufstandfläche the guide plate 13th

19

insulator element

20.21

swivel arm

22

Recess of the pivot arm 20

23

Side section of the guide plate 3

24

Pin of the guide plate 3

25

game

26

Support surface of the insulator element 19th

27

Recording of the isolator element 19

28

Recess of the insulator element 19th

29

Shoulder of the guide plate 3

30

Snap the guide plate 3

31.32

Locking recesses of the swing arm 20

F

Rail foot of rail S

L1, L2

pivot bearing

R

space required for the placement of the rail S

S

rail

X

common pivot axis of the pivot bearing L1, L2

Claims (12)

1. Guide plate for laterally guiding a rail (S) for rail vehicles to be fastened to a base (2), having a front face (4), against which the rail (S) is supported in the mounting position, and having an insulator element (19) which is supported by the guide plate (3), via which insulator element (19) a spring element (13) in the mounting position acts on the foot (F) of the rail (S) to be fastened, which spring element (13) being attachable onto the guide plate for fastening the rail (S), characterised in that the insulator element (19) is mounted on the guide plate (3) so that it can pivot.
2. Guide plate according to Claim 1, characterised in that the insulator element (19) can be pivoted about a pivot axis (X) aligned parallel to the front face (4) of the guide plate (3).
3. Guide plate according to any one of the preceding claims, characterised in that the insulator element (19) is mounted so that it can pivot about two pivot bearings (L1, L2).
4. Guide plate according to Claims 2 and 3, characterised in that the pivot axes (X) of the pivot bearings (L1, L2) are coaxially aligned.
5. Guide plate according to any one of the preceding claims, characterised in that the insulator element (19) has a pivot arm (20, 21) on which a bearing element (22, 24) is formed which together with a correspondingly shaped bearing element (24, 22) of the guide plate (3) forms a pivot bearing (L1, L2) for the insulator element (19).
6. Guide plate according to Claim 5, characterised in that the one bearing element is a pin (24) and the other bearing element is a recess (22) in which the pin (24) is pivoted.
7. Guide plate according to Claim 6, characterised in that the recess is an elongated hole opening.
8. Guide plate according to any one of the preceding claims, characterised in that the insulator element (19) has an elongated basic shape and extends parallel to the front face of the guide plate (3).
9. Guide plate according to any one of the preceding claims, characterised in that the guide plate (3) and the insulator element (19) are produced from plastic.
10. Guide plate according to any one of the preceding claims, characterised in that at least one catch element (30, 31) is provided on which the insulator element (19) is detachably held in the pre-mounting position.
11. Guide plate according to any one of the preceding claims, characterised in that at least one catch element (30, 32) is provided on which the insulator element (19) is held in a mounting position in which the insulator element (19) is located in a position arranged in front of the front face (4).
12. System for fastening a rail (S) to a base, which comprises a guide plate (3), a spring element (13), which when the system is fully mounted exerts a retaining force on the rail (S) via at least one spring arm (15), an insulator element (19), which when the system (1) is fully mounted sits between the end of the spring arm (15) assigned to the rail (S) and the rail (S), so that the spring element (13) acts on the rail (S) via the insulator element (19), and a tensioning element (17) for tensioning the spring element (13), characterised in that the insulator element (19) is held on the guide plate (3) so that it can pivot.

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