SWITCH ELEMENT FOR A TRACK CARRYING A RUBBER-TYRED VEHICLE, TRACK SWITCHGEAR MADE FROM SAID ELEMENTS AND METHOD FOR TRANSPORTING PASSENGERS ALONG A RAIL PROVIDED WITH SUCH SWITCHGEAR

Abstract

The disclosure relates to a flexible switch element for a track carrying rubber-tyred trains comprising two parallel rails each having an upper running surface for the tyres and an inner side surface for supporting a continuous strip (B) for guiding the train. The switch element has at least one hinge providing the longitudinal link with an adjacent switch element. The switch element also has a set of longitudinal abutments engaging, on the one hand, with the hinge in order to adjust the relative angular orientation of the element and, on the other hand, with a pivoting bottom rod providing the connection to and the alignment with an identical switch element arranged symmetrically on the opposite side of the switch. The disclosure also relates to a track switchgear comprising the assembly of such elements and a method for transporting passengers along a track provided with said track switchgear.

Claims

1. A flexible switch element of a switchgear for a track carrying a rubber-tyred train, comprising two parallel rails, each having an upper running face for tyres of the rubber-tyred train and an inner side face for supporting a continuous guide strip for guiding the rubber-tyred train, said switch element having at least one hinge providing a longitudinal link with an adjacent switch element, wherein said switch element has a set of longitudinal abutments engaging with said hinge in order to adjust the relative angular orientation of said switch element and with a pivoting bottom rod providing a connection to and an alignment with an identical switch element arranged symmetrically on an opposite side of the switchgear.

2. The switch element of claim 1, wherein said hinge comprises two bearings projecting on at least one longitudinal end of the switch element and wherein a vertical axis forming one piece with said rod is engaged.

3. The switch element of claim 1, wherein said hinge is located at one longitudinal end of the switch element, the switch element further comprising a further hinge located at an opposite longitudinal end of the switch element.

4. The switch element of claim 1, comprising two cleats for retaining the continuous guide strip, which, with an inner side face of the continuous guide strip, provides an intermediate space for accommodating the curved part of said continuous guide strip.

5. The switch element of claim 1, wherein the set of longitudinal abutments comprises, at a first longitudinal end, a pin of variable length and, at a second longitudinal end, a stud for receiving a support of the pin opposite the adjacent switch element.

6. The switch element of claim 1, wherein said hinge is mounted between the inner side face and the set of longitudinal abutments extending from the outer side of the upper running face.

7. The switch element of claim 1, wherein said hinge is mounted below the level of the upper running face.

8. The switch element of claim 1, wherein an outer side face of the switch element has substantially horizontal fins intended to come into abutment against markers arranged on outer edges of the track.

9. A flexible track switchgear for equipping a track crossing of a track, said switchgear consisting of two parallel ties of switch elements of claim 1, wherein the flexible track switchgear is provided with two end sections hinged, respectively, on end switch elements of the ties located at the ends of the ties and ensuring an alignment and locking of said ties with the crossings guard rails and a link with devices for controlling the pivoting of said ties mounted on outer edges of the track.

10. The flexible track switchgear of claim 9, wherein each of said end sections is provided with a cavity for receiving and locking the end of the piston rod of pistons mounted on the crossing guard rails.

11. The flexible track switchgear of claim 9, wherein each of said end sections has, on an outer side edge, a pivot having a vertical axis connected to one of the devices for controlling the pivoting of the ties.

12. The flexible track switchgear of claim 9, wherein each of said end sections has one abutment engaging with abutments of the end switch elements of the ties.

13. The flexible track switchgear of claim 9, further comprises comprising a central switch rail rotatively mounted in an axial extension of a crossing core and having a spatulated end branch alternately aligned with the respective end sections of the two ties.

14. A method for transporting passengers by means of rubber-tyred trains along a track comprising: two parallel rails each having an upper running face for tyres of the rubber-Wed train and an inner side face for supporting a continuous guide strip for guiding the rubber-Wed train and, at least one crossing provided with a flexible switch and consisting of a tie of switch elements of claim 1, wherein the switch is pivoted by means of control devices mounted on edges of the tracks and acting on end sections of the ties.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0027] Further characteristics and advantages of the invention will emerge from the following description, with reference to the appended figures and explained in details below.

[0028] FIG. 1 shows a front view of one embodiment of the track switchgear of the invention, on which a rubber-tyred train circulates.

[0029] FIGS. 2A and 2B show top views of one embodiment of the switching element of the invention with the continuous guide strip in normal position and in curved position, respectively.

[0030] FIG. 3 is a front view of the switch element of FIGS. 2A and 2B.

[0031] FIGS. 4A and 4B represent partial top views of the invention's track switchgear, respectively, of the ties of two elements and the terminal section of the ties.

[0032] FIGS. 5A and 5B show views of a first alternative embodiment of the invention's switchgear, respectively, in two respective positions of the switch.

[0033] FIGS. 6A and 6B show views of a second alternative embodiment of the invention's switchgear coupled to a traditional central switch rail, respectively, in two respective positions of the switch.

[0034] For greater clarity, identical or similar elements are identified by identical reference signs on all figures.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Of course, the embodiments illustrated by the figures presented above and described below are given only as non-exhaustive examples. There is explicit provision for these various embodiments to be combined to propose other ones.

[0036] FIG. 1 shows a switchgear forming a switch intended to equip a railway crossing for the circulation of an APM-type train V the wheels R of which are equipped with tyres and are associated with guide rollers or rollers G.

[0037] The two parallel rails delimiting the track consist of longitudinal profiles with an H-shaped cross-section (H lying as shown in FIG. 3), each of which provides an upper surface S for running the tyres and an inner side surface I for supporting a continuous strip B extending substantially vertically and engaging with the rotating rollers G for guiding the train V.

[0038] The track switchgear of the invention comprises the assembly of identical switch elements 1 hinged to each other. Thus, each switch element 1 has at least one hinge and, preferably, two hinges providing, on either side, the longitudinal link with adjacent switch elements so as to form two parallel ties of elements by defining a so-called flexible switch, as illustrated in FIGS. 5A, 5B and 6A, 6B.

[0039] The switchgear also comprises devices C for controlling the pivoting of the ties which are mounted on the outer edges of the track and which will be described below.

[0040] The structure of the switch elements 1 the ties of the invention's track switchgear are made of, will now be described in detail with reference to FIGS. 2A, 2B and 3.

[0041] The hinges of the switch elements 1 comprise at least one bearing supported by each of the longitudinal ends of each element. Thus, the switch elements 1 can be connected longitudinally to each other by means of their respective bearings wherein a vertical axis X is engaged.

[0042] The X axis is integral with a pivoting bottom rod 2 which acts as a spacer and ensures both the connection and alignment of two identical switch elements, 1a and 1b, that are symmetrically arranged on opposite sides of the switch (FIG. 4A).

[0043] Preferably, the hinges are mounted on the elements 1 below the level of the upper running face S.

[0044] In the embodiment shown in FIG. 3, the hinges comprise, on the one hand, an upper bearing 11a together with a lower bearing 11b which are vertically aligned and projecting on one of the longitudinal ends of each switch element 1 and, on the other hand, a third bearing 11c supported by the other longitudinal end of the element 1. The third bearing 11c is inserted between and aligned with the bearings 11a, 11b opposite the adjacent element 1 the orientation of which is reversed, as shown in FIG. 4A. The X axis thus passes through three bearings.

[0045] Each switch element 1 also has a set of longitudinal abutments 12, 13 engaging, on the one hand, with the hinges to adjust the relative angular orientation of the element 1 and with the pivoting bottom rod 2.

[0046] The set of abutments includes, on a first longitudinal end of the element 1 (corresponding here to the one on which the bearing 11c is located), a pin 13 of variable length and, on a second longitudinal end (corresponding to the one on which the bearings 11a and 11b are located), a stud 12 intended to support the pin 13 opposite the adjacent switch element 1 of the same tie, as shown in FIG. 4A.

[0047] Preferably, longitudinal abutments 12, 13 extend substantially tangentially and at mid-height on the radially outer side of the element 1 beyond the upper running surface S and beyond the bearings 11a, 11b, 11c of the hinges, as shown in FIG. 3.

[0048] In addition, the switch element 1 has two cleats 14 for retaining the continuous guiding strip B, which, with its inner side face I, provide an intermediate space wherein the curved concave part of the strip B is accommodated when the tie of hinged elements 1 is pivoted in the radially inner direction, as shown in FIG. 2B.

[0049] The strip B extends in one piece vertically and along the entire length of the track switchgear by clamping the ties of switch elements 1. Although retained by the cleats 14, the strip B, which is flat at rest, deforms, when the switch is operated, into a concave (element 1a,FIG. 4A) or convex (element 1b, FIG. 4A) curvature, depending on the pivoting direction of the ties.

[0050] The outer side face of the element switch 1 has substantially horizontal fins 15 designed to abut against the markers K on the outer edges of the track, so as to limit ties travel, as shown in FIGS. 3, 5A-5B and 6A-6B.

[0051] The flexible track switchgear, according to the invention, thus consists of two parallel ties of hinged switch elements 1 as described above, each with a terminal section 3 for connecting with the guard rails at the crossing of the tracks, as illustrated, in particular, by FIG. 4B.

[0052] The end sections 3 are hingingly mounted on the switch elements 1 at the ends of the ties and ensure, on the one hand, the joint alignment and locking of the two ties with the crossing guard rails and, on the other hand, the link with devices C for controlling the pivoting of these ties.

[0053] The control devices C preferably consist of hydraulic or electric cylinders coupled to linking arms hinged like a pantograph.

[0054] To this end, each of the end sections 3 has, on its outer side edge, a pivot Z having a vertical axis connected to one of the arms of the devices C for controlling the pivoting of the ties and, on its rear longitudinal edge, a hinge 11d and one abutment 31 engaging, respectively, with one of the hinges 11a, 11b and one of the abutments 12 of the switch elements 1 located at the ends of the ties, as shown in FIG. 4B.

[0055] With this configuration, the switching operation of the track switchgear is carried out by activating the control devices C, which act by pulling or pushing on the end sections 3 of the two ties by moving, in one direction or the other, all the hinged switch elements 1, as shown in FIGS. 5A, 5B and 6A, 6B.

[0056] The flexible ties of the elements 1 can thus take two extreme positions of curvature represented, respectively, in FIGS. 5A, 5B and 6A, 6B which correspond to the passage of the train V on one track of the crossing or the other. These two switch positions are defined, on the one hand, by the prior adjustment of the abutments 13 and, on the other hand, by the engagement between the fins 15 of the elements 1 and the fixed markers K of the track.

[0057] The alignment of the two ties of switch elements 1 is then maintained by the action of the rods 2 which are connected at their ends to the hinges of the switch elements 1 (see FIGS. 1 and 4A).

[0058] To ensure secure locking of the ties linking with the crossing guard rails, each of the end sections 3 is provided with a cavity 30 intended to receive and lock the end of the rod T of different pistons P mounted on the crossing guard rails (of which only the piston of the core of the crossing is shown in FIG. 4B). The cavity 30 is formed by a flared inlet portion 30a for the introduction of the rod T and extends inwardly in the form of a blind portion 30b having a restricted diameter, wherein the end of the rod T is blocked.

[0059] Advantageously, the rod T of the piston P is guided in a conduit L so as to facilitate the positioning thereof opposite the flared portion 30a of the cavity 30.

[0060] The variant of the invention illustrated in FIGS. 5A and 5B corresponds to a flexible track switchgear wherein each of the two ties comprises nine switch elements 1 and is therefore of great length.

[0061] In the variant of the invention illustrated in FIGS. 6A and 6B, the track switchgear consists of ties, each of which comprises only four switch elements 1, and is therefore significantly shorter. In this case, the track switchgear described above is associated with a central switch rail A which is motorized and mounted rotatively in the axial extension of the crossing core. This switch rail A has a traditional structure with a spatulated end branch E alternately aligned with the respective end sections of the two ties. This variant makes it possible to produce switches with larger radii.