EP1312530B1 - System for securing and/or verifying the final position of a rail - Google Patents

Abstract

The device is for use with a rail e.g. a tongue blade adjustable relative to a rigid rail. A holder element (88,90) supports the moveable rail in end position. A lever element (74) is connected to the holder element and positioned pivoted relative to its stationary axis (96,98). A driver element (26,28) extending from the moveable rail interacts with the lever element, so that in end position of the moveable rail the holder element is charged by a force in such a way, that the end position can be supported and monitored.

Description

The invention relates to an arrangement for Endlagensicherung and checking a first to a stationary second rail such as stock rail adjustable rail such as tongue rail, wherein from the adjustable first rail a backdrop exhibiting entrainment emanates a retaining element interacts with the backdrop and perpendicular or nearly perpendicular to Displacement of the entrainment element spring force besufschlagt is adjustable so that the first rail is supported in one of its end positions and verifiable.

An arrangement for securing the end of a rail can be found in DE 295 10 718 U1. With the known adjusting device for a switch it is ensured that the tongue rail always occupies only one of the two end adjustments, that is to say the adjacent or remote position. For this purpose, an actuating rod leading to an axis of rotation from the tongue rail starts, from which in turn two symmetrically arranged holding and guiding element arrangements emerge, each of which can be pivoted about a stationary axis. In this case acts on the retaining element, a spring force such that the guide / Halteelemenlanordnungen must always take one of two stationary positions due to the applied spring force, each corresponding to one of the end positions of the tongue rail. In the respective end position, the axis of rotation, from which the adjusting rod extends, is located on opposite sides of a straight line connecting the stationary axes of the guiding / holding element arrangements. This means that a frequently undesirable space requirement is required. Furthermore, considerable forces are required to overcome the force acting on the holding elements spring elements when switching the guide / holding element arrangements.

Regardless of the known actuator additional Endlagenprüfer are required to monitor the position of the tongue rail can. Corresponding Endlagenprüfer be attached to bearing iron outside the thresholds, from the tongue rails themselves Prüferstangen emanating to the Endlagenprüfer. Due to the additional design-related elements, it is necessary that they are regularly checked for their functionality.

A changeover device for points can be found in FR A 2 387 833. To switch the switch between tongues, an adjusting lever is pivoted about a first axis, from which a connecting rod extends, which is connected to an angle lever, on whose side a leading to the tongue rail actuator is articulated. The first axis is perpendicular to the pivot axes of the angle bracket and the Slellgliedes. At the point of articulation between the angle lever and the actuator engages a spring-biased holding element pivotable about a stationary axis.

In DE 44 03 259 A1 a device for adjusting and locking or unlocking a rail section is described. End positions of the rail section can be locked by means of a spring-loaded ball element.

From DE-B-29 28 194 a generic arrangement for Endlagensicherung and verification of an adjustable to a stock rail tongue rail can be seen.

The previously known structurally complex arrangement of a point drive has two locking slide, which are displaceable in each case via a spring element perpendicular to the adjustment of a trained as a locking slide driving element. In this case, depending on the respective Endiagenstellung the tongue rail and thus the lock slider engages one of the locking slide by means of a slider in a recess of the lock slider.

Starting from an arrangement of the type described above, the invention has for its object to keep in a compact design with structurally simple measures, the movable rail such as tongue rail safely in their end positions, at the same time a check should be made.

To solve the problem, it is proposed that the gate is a projection or depression of an effective width corresponding to the first rail in its supported by the holding element Stellweglänge and that the first rail before reaching their respective end position transmitted through the holding element spring force in their movement towards the end position is supported.

At least one signal transmitter is assigned to the carrier element itself, which generates signals that can be assigned to the actuating path, in particular the end positions of the first rail. In this case, the signal generator and the holding element form a unit.

For more details, advantages and features of the invention will become apparent not only from the claims, the features to be taken these features - alone and / or in combination - but also from the following description of a drawing to be taken preferred Ansführungsbeispiels.

Fig. 1

einen Querschnitt durch eine Weiche mit in einem Schwellenfeld angeordneter Anordnung,

Fig. 2

einen Längsschnitt durch die Anordnung gemäß Fig. 1 bei an einer Backenschiene anliegender Zungenschiene,

Fig. 3

einen Querschnitt durch die Anordnung gemäß Fig. 2,

Fig. 4

eine der Fig. 2 entsprechende Darstellung, bei der sich die Weichenzungen etwa im zweiten Drittel ihres Stellweges befinden und

Fig. 5

eine Prinzipdarstellung einer erfindungsgemäßen Ausführungsform.

Show it:

Fig. 1

a cross section through a switch with arranged in a threshold field arrangement,

Fig. 2

1 is a longitudinal section through the arrangement according to FIG. 1 with a tongue rail resting against a stock rail;

Fig. 3

a cross section through the arrangement of FIG. 2,

Fig. 4

one of the Fig. 2 corresponding representation, in which the switch blades about located in the second third of their travel and

Fig. 5

a schematic diagram of an embodiment of the invention.

In Fig. 1 a section through a switch with a stock rail 12 and an adjustable tongue rail 14 is shown. However, this is not intended to limit the teaching of the invention. Rather, this refers to the track superstructure, in which a first movable rail such as the tongue rail 14 to a stationary second rail as the stock rail 12 is adjustable. For the sake of simplicity, however, below is always spoken by the tongue rail 14 as a first rail and the stock rail 12 as a second rail.

The stock rail 12 is fixed in a known manner on a ribbed plate, which can emanate from a threshold. The tongue rail 14 in turn is slidably supported on a slide chair. In that regard, reference is made to sufficient constructions without the need for any further action. The same applies with respect to the adjusting device and the closure for the tongue rail 14 itself.

As can be seen from the schematic illustration according to FIGS. 1 and 2, a tongue block 18 extends from the foot 16 of the tongue rail 18 with a holder 20, from which in turn lead out threaded shafts 22, 24 leading to entrainment elements 26, 28, which in the threshold field in FIG a housing 30 are arranged. The driving elements 26, 28, which have a cuboid geometry, are slidably supported on shafts 32, 34, which in turn are fixed in the housing 30. The connection between the tongue block 18 or its holder 20 with the driving elements 26, 28 via the threaded rods 22, 24 or equivalent elements ensures that synchronously with the movement of the tongue rail 14, the driving elements 26, 28 along the guide shafts 32, 34 move with it.

As illustrated in particular the sectional view of FIG. 3, the entrainment elements 26, 28 has a rectangular cross-section, with an L-shape (carrier element 28) or an asymmetrical T-shape (carrier element 26) in plan view. By the corresponding geometries, the teaching of the invention should also not be limited.

The threaded rods 22, 24 further allow the distance to the tongue block 18 to be adjustable.

The driving elements 26, 28 have in their mutually facing surfaces 38, 40 each have a step 42, 44, through which the surfaces 38, 40 are divided into two mutually offset sections 46, 48 and 50, 52, the outside by the Plains 49, 51 and 47, 53 are limited, which are opposite and preferably parallel to each other. The outer surfaces 47, 51 of the projecting portions 46, 50 parallel to each other and parallel to the adjustment of the driving elements 26, 28 itself. In the outer, ie stages distant corners of the projecting portions 46, 50 of the driving elements 26, 28 recesses 54, 56 are provided , The recessed portions 48, 52 may, but need not, be parallel to the displacement path. Rather, these alone have to form a free space for one of two roller elements 78, 80, when the other roller element interacts with one of the projecting surfaces to be designated as drainage surfaces 47, 51.

One of the driving elements (in the embodiment of the driving element 28) are further associated with two switching elements 58, 60 which slide with their respective actuator 62, 64 along an outer surface 66 of the driving element 28. In this case, the outer surface 66 extends opposite to the step 44 having surface 40 or 51 of the driving element 28th

In the interacting with the actuator 62, 64 surface 66 also recesses 68, 70 are provided, which are arranged in mutually offset planes such that in each case one of the recesses 68, 70 one of the actuator 62, 64 and the other recess associated with the other actuator. This creates the possibility that when adjusting the driving element 28 then one of the actuator 62, 64 can engage in its associated recess 68, 70, when the tongue rail 14 is in one of its end positions. To set the switching point, the driving element 28 and the driving element 26 can be adjusted via the threaded rod 24, 22 to the tongue block 18 and thus the tongue rail 14.

Between the driver elements 26, 28, the lever member 74 is rotatably mounted about a stationary axis 72, which is formed with two arms and an L-shaped geometry with long and short legs 76, 82 has. From the longitudinal leg 76 of the lever member 74 go out of the roller elements or rollers 78, 80 which are rotatable about diametrically to the stationary axis 72 extending unspecified axes. In the end region of the short leg 82, a joint element 84 is rotatably articulated about an axis 87. The joint member 84 is plate-shaped or shank-shaped and has at its end remote from the axis 87 on another axis 86, which is penetrated by holding elements 88, 90. Furthermore, the joint element 84 on the slide side has a recess 85. The holding elements 88, 90, which are also referred to as counter-holders, extend in guide tubes 92, 94, which are pivotable about stationary axes 96, 98 which extend from the housing 30 and extend parallel to the axes 87 and 72. The axles 86, 96, 98 are formed by pin members 100, 102, 104 which pass through the guide tubes 92, 94 in their end portions and the anvils 88, 90, respectively, in their forward free ends.

The guide tubes 92, 94 and the counter-holders 88, 90 are circumferentially surrounded by a coil spring 105, 106 or an equivalent element, on the one hand on a circumferential collar 108, 110 of the anvil 88, 90 and on the other hand on a bolt-side stop 112, 114th support, which protrudes from the guide tube 92, 94.

Consequently, the pin 102 connecting the anvils 88, 90 also passes through the hinge member 84, which is hinged to both the lever member 74, i. whose shorter leg 84 and the backstops 88, 90 is connected.

Consequently, if the lever element 74 is pivoted, this movement is transmitted via the joint element 84 to the counter-holders 88, 90, which are counter to the force caused by the coil springs 105, 106 force into the guide tubes 92, 94 in accordance with or herausdrückbar. Thus, the lever member 74 and the hinge member 84 effectively perform the function of articulated link chain members to transmit a movement or a force.

As is illustrated by the illustrations of Figs. 2 and 4, the lever member 74 and the longitudinal leg 76 with its rollers 78, 80 to the driver elements 26, 28 aligned such that the rollers 78, 80 when adjusting the tongue rail 14 and thus the synchronous entrainment of the driving elements 26, 28 in such a manner interact with the facing surfaces 47, 51 of the projecting portions 46, 50 in dependence on the position of the tongue rail 14, that these additionally in their respective end position by the coil springs 106, 105 via the anvils 88, 90, the joint member 84 and the lever member 74 and the interacting with the rollers 78, 80 driving elements 26, 28 force is additionally fixed. Also, a support of the movement preferably takes place in the last third of the travel to the respective end position.

At the same time, an end position check by means of the switching elements 58, 60, which may be designed as so-called snap-action switches, takes place in the corresponding positions.

In Fig. 2, the state of the present invention not claimed arrangement 10 for Endlagensicherung and -Überprüfung the tongue rail 14 is shown in its adjacent position. In this case, the sliding roller 78 of the lever element 74 is in the recess 54 of the driving element 26, wherein the of the coil springs 105, 106 on the anvil 88, 90 acting forces on the hinge member 84 and the lever member 74 is transmitted by means of the sliding roller 78 on the driving element 26 such that this force application against an adjustment - in the embodiment, thus contrary to a movement up - learns. As a result, the tongue rail 14 is additionally fixed in its adjacent position. To transmit the required forces, the axis 87, in which the joint member 84 is pivotally connected to the lever member 74, in the exemplary embodiment above the axis of rotation 72, so that the lever member 74 tends to be rotated clockwise with the result that the required introduction of force into the entrainment element 26 is initiated against its direction of adjustment. At the same time, the opposing roller element 76 engages in a recess 85 of the joint element 84.

If by means of an actuator, not shown, the switch blade 14 away from the stock rail 12, so pitched, the roller member 78 of the lever member 74 passes out of the recess 54 and slides along the protruding surface 47. At the same time passes the opposite roller member 76 from the recess 85th As a result of this, the lever element 74 is pivoted about its axis 72 in the counterclockwise direction. At the same time on the hinge member 84 of the anvil 88, 90 connecting pin 102 away from the axis of rotation 72 of the lever member 74 - in the embodiment down - adjusted. A pivoting back, so a clockwise movement of the lever member 74 takes place at the moment in which the sliding roller or the roller element 78 extends within the step 42 of the driving element 26 and the roller member 80 interacts with the projecting surface 51 of the portion 50 of the opposite driving element 28 , The lever member 74 rotates clockwise at this moment. Upon further movement of the tongue rail 14 and thus the synchronously mitbewegenden entrainment elements 26, 28, the sliding roller or the roller member 80 is supported on the parallel to Verstellweg extending surface 51 of the driving element 28 continues to then before the second end position of the tongue rail 14, ie its open position, to get into the recess 56, wherein due to the articulated connection between the hinge member 84 and the Lever element 74 with the connecting pin 102, the force of the springs 106, 105 is transmitted such that on the roller member 80 with simultaneous pivoting of the lever member 74 in the clockwise direction, the driving element 28 undergoes a force such that this is moved upward in the embodiment, whereby the movement the tongue rail 14 is supported to reach its open position.

In other words, with the construction not claimed according to the invention, the forces of the springs 105, 106 are transmitted via the articulated connection 84 and the lever element 74, preferably in the last third of the adjustment path of the tongue rail 14, to one of the entrainment elements 26, 28 such that the movement of the tongue rail 14 is supported. At the same time a frictional fixing each one of the entrainment elements 26, 28 takes place in one of the end positions of the tongue rail 14 by engagement of one of the roller elements 78, 80 in one of the recesses 54, 56 or equivalent elements.

As the drawings illustrate, the distance between the opposite surfaces 47, 49 and 51, 53 of the facing surfaces 38, 40 of the driving elements 26, 28 - viewed in planes perpendicular to the displacement path - chosen such that when a the roller elements 78 and 80 interacts with one of the projecting surfaces 47 and 51, the other roller element is free. Further, the distance of the steps 42, 44 between the surface portions 47, 53 and 49, 51 - also considered perpendicular to the displacement of the driving elements 26, 28 - so matched to the effective distance of the roller elements 78, 80 of the lever member 74 that then when one of the roller elements 78, 80 comes into play with the corresponding rolling surface 47, 51, the other roller element 80, 78 comes into contact with the other rolling surface 51, 47.

It should also be mentioned that the interacting elements such as sliding elements 78, 80, actuators 62, 64 and recesses 54, 56, 68, 70 can also be designed differently than described. In particular, the recesses can through Replaced projections and the sliding elements and actuators are adjusted accordingly.

In Fig. 5 is a schematic representation of an embodiment of the invention an arrangement for Endlagensicherung and / or review of a tongue rail is shown. From the tongue rail is a driving element in the form of z. B. a rod 120, which is displaceably mounted between roller bearings 122 on the one hand and a roller member 124 on the other hand. In this case, the roller element 124 is kraflbeaufschlagt by means of a spring element 126 in the direction of the rod 120. The roller element 124 is floatingly mounted so far that it is perpendicular to the longitudinal axis of the rod 120 so that the displacement of this and the tongue rail is adjustable. Thus, the roller member 124 may be referred to with the spring member 126 and its unspecified guide as a holding element. From the rod 120 is a backdrop 128, which is formed in the embodiment as a projection. In this case, the link 128 is aligned with the tongue rail such that the roller element 124 acts shortly before reaching the end position on one of the flanks 130, 132 of the projection 128, with the result that caused by the force of the spring 126, the roller element, the above-mentioned perpendicular to the longitudinal axis of the rod 120 is adjustable, the displacement of the rod 120 is supported. Synchronously, the tongue rail is therefore supported in their adjustment in the respective end position.

The effective width of the projection 128 should be aligned with the length of the travel of the tongue rail, in the over the roller member 124 no effective force is to be transmitted in such a way to assist the adjustment of the tongue rail.

With the roller element 124 or its guide, a switching element can be linked to generate a signal depending on the position of the guide or the roller element 124, by which a check of the position of the tongue rail, in particular their end positions is made possible. Of course, the rod 120 may be associated with a separate signal generator, the z. B. another projection or recess of the rod 120 interacts to trigger a signal.

According to the embodiment of Figs. 1 to 4, a plurality of corresponding projections such as cams or recesses may be provided as recesses to trigger a plurality of switching signals.

Claims (4)

1. Arrangement for securing and checking the end positions of a first rail (14) such as a tongue rail adjustable relative to a stationary second rail (12) such as a stock rail, where a driving element (120) having a crank extends from the adjustable first rail and a retaining element (124) interacts with the crank (128) and is adjustable under spring force and vertical or nearly vertical to the displacement path of the driving element such that the first rail is supported in one of its end positions and is checkable,
   wherein
   the crank (128) is a protrusion or a recess of an effective width that corresponds to the first rail (14) in its adjustment path length supported by the retaining element (124) and wherein the first rail is supported in its movement towards the end position by a spring force transmitted via the retaining element before reaching its respective end position.
2. Arrangement according to Claim 1,
   wherein
   at least one signal transmitter is assigned to the driving element (120) and generates signals assignable to the adjustment path, in particular to the end positions of the first rail (14).
3. Arrangement according to Claim 2,
   wherein
   the signal transmitter and the retaining element (124) are directly coupled.
4. Arrangement according to Claim 2,
   wherein
   the signal transmitter extends from the driving element (120) and can be actuated by the retaining element (124).

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