JP2003523877A - Mobile platform with two contact wires and a laying body on the support - Google Patents

Abstract

(57) [Summary] The present invention provides a method for holding two bases (13) and two wires (7) on the same side of the base (13) in contact with a moving body to be fed by elastic bending prestress. The present invention relates to a mobile platform having a laying body (4) composed of two wings (18, 19) and a gantry for laying and removing a power supply overhead line in a longitudinal direction of a mobile body. The laying removal carriage has a central device (70) that engages with the free end (20) of the central wing (18), and the side wing (19) is temporarily separated from the central wing (18). The contact lines (7), together or preferably individually, with the body (4) engage with the free ends (21) of the respective side wings (19) to enable attachment or detachment. It consists of two side devices (71) and a device for propelling the contact line (7) towards the laying body (4).

Description

Detailed Description of the Invention

[0001] The present invention relates to three rigid components which are integral with one another, electrically conductive and have a substantially constant cross section, namely: a rigid flat base having a symmetrical intermediate longitudinal plane and perpendicular to said planes. And one flat central wing arranged along said plane and two elastically flexible flat side wings arranged substantially parallel to said plane on each side of said plane. A laying on a support consisting of three wings arranged on the same side of the base in a ratio of 3
Each of the two wings is joined to the base and has its respective free end on the opposite side of the base so that its cross section has two beaks facing each other along a direction perpendicular to the plane. And a laying body having the shape of a beak portion directed to adjacent wing portions, and two contact with a moving body which is mutually symmetrical with respect to said plane and which is provided with two grooves each. A line, towards the said plane, by means of its further groove on the free end of the central wing, so as to add, between the corresponding free ends, a tightening effect of integration with the laying body to each catenary. , In the respective grooves of the respective contact lines which are themselves supported, with their free ends supported towards the plane, in the elastic deflection prestress condition of the two lateral wings, the plane In the direction in which they are spaced apart from One of the free ends relates to a laying / moving base for laying a longitudinal feeder line of a moving body of a type consisting of two contact lines that are fitted with each other.

Places where conventional laying of suspended catenaries is difficult or dangerous, especially for power vehicles, especially in tunnels, which are generally aimed at powering orbiting vehicles, such as cargo handling equipment or electric power vehicles. Overhead lines can handle higher currents than overhead lines with only a single contact line.

The catenary is described with reference to FIG. 8 of European Patent Application 0,593,350 in an embodiment in which the three wings of the laying body together with their base form a single piece.

In addition, the above-mentioned European patent application is sized so that it does not comprise a central wing, its side wings come to hold by elastically sandwiching the contact line thus arranged. Laying removal carriage specifically described in relation to a catenary line with only one contact line, arranged along a symmetrical intermediate longitudinal plane of a laying body similar to the laying body described above. In the context of such overhead lines.

Such a mobile platform has since been manufactured especially by the Applicant and has a product number 552.
411 commercially available and constituted by: -a rigid frame having a symmetrical intermediate longitudinal plane, -between the frame and the laying body said symmetrical intermediate longitudinal plane coincides with the symmetrical intermediate longitudinal plane of this laying body. A mechanical connection means that is detachable in the direction of, and on the one hand ensures the support of the frame by the laying body, and on the other hand the guiding of the frame in longitudinal translation relative to the laying body; They are respectively arranged on both sides of the longitudinal plane and are symmetrical to each other with respect to the plane at respective predetermined positions stationary with respect to the frame, and at least separated from the respective rest positions with respect to the longitudinal plane. Two side fixing devices which are engageable with the free ends of the corresponding side wings on the side of the beak part which respectively faces the longitudinal plane in the direction of rotation; Relative to the frame in a direction perpendicular to the longitudinal plane, away from the longitudinal plane, and in a direction approaching it perpendicular to the longitudinal plane when returning to their respective rest positions. Means for forcibly moving the lateral fixing device in a controlled manner; a contact line propelling device carried on a frame and arranged symmetrically with respect to the longitudinal plane; A means for forcibly moving the propulsion device in a controlled manner relative to the frame in both transverse directions.

Such a trolley was described in the above-mentioned European patent application in connection with the overhead line in order to realize the overhead line and then repair it if damaged or repair it as part of a maintenance operation. The single contact line of the overhead line is completely satisfactory for laying or dismounting for the laying body or for the alignment of the laying bodies butt-assembled with each other.

In fact, within a continuous area along one or more layings for longitudinal translation of the layings guided by intervening means of a removable mechanical connection,
Via the side anchoring device, their free ends can be temporarily separated from each other by elastic deflection of the side wings, and further: -to ensure that the overhead wire is laid, the carriage is moved, As soon as the side wings are thereby opened, the contact line is inserted between these free ends thus separated by means of a propulsion device to the position where the contact line is clamped by the free ends. Or, to ensure the removal of the catenary, release the contact line previously clamped between these free ends from the free ends thus separated and control this release using a propulsion device. can do.

On the other hand, its use for laying or removing overhead lines of the type indicated in the preamble is unsatisfactory, in particular for lateral fusers, this action is only due to the mutual separation of the free ends of the lateral wings. This is because there is some difficulty in controlling the separation of the free ends of the lateral wings from the free ends of the central wings, which is necessary for the laying and removal of the two contact lines, unless Thus, within certain areas of the catenary, there is some difficulty in engaging or disengaging one of the contact lines facing the corresponding side wings and the central wings of the or each laying body.

One object of the present invention is to overcome this problem, so that the present invention is a laying and dismounting carriage that conforms to the above mentioned carriage, further carried by a frame and lying flat in said longitudinal plane. Of the corresponding beaks, which are arranged symmetrically with respect to the latter at their respective predetermined positions stationary with respect to the frame, at least on both sides of said longitudinal plane and in a direction spaced apart therefrom. A central anchorage device engageable with the free end of the central wing, between which the propulsion device supports two contact lines in a spaced direction relative to the base of the laying body parallel to said longitudinal plane. We propose an installation / removal platform that can play a role.

As will be easily understood by those skilled in the art, in the case of removing the contact line on the installed overhead line after the movable stand is hung on the laying body by the mechanical connection means of the laying body and its frame. On the laying body or the alignment of the laying body by locally separating the beak portion of the side wing from the corresponding beak portion of the central wing portion under conditions suitable for releasing the respective contact lines. In the case of the laying of the contact lines, the pulling force in the separating direction with respect to the free end of the central wing part, which is engaged with the central fixing device, enables the insertion of the corresponding contact line, by using the side fixing device. , In addition to advancing to a continuous area of the free end of the lateral wings of the or each laying body, respectively, separated from the laying body sufficiently to allow removal of the contact lines released by the beak, respectively. Or next By locating the respective propulsion devices so as to push the contact lines to locate them between the beaks, at positions suitable to allow them to be engaged in their respective grooves, and In some cases, the carriage can be advanced along another laying body aligned with it.

Further, as can be easily understood by those skilled in the art, immediately after passing through the movable table, the elasticity of the side surface movable table is such that the contact lines placed between the beak portions respectively correspond to the grooves. The side wings can be returned to the shape that is retained by fitting them together.

Thus, contrary to the carriage described in the above mentioned European patent application, the carriage according to the invention controls the position of the free end of each side wing with respect to the free end of the central wing. As a result, it is possible to securely and easily engage and disengage the contact line with the corresponding side wings and the central wings of the or each laying carriage in the entire area of the overhead line. to enable.

The means for moving the lateral fixing devices respectively arranged on both sides of the symmetric intermediate longitudinal plane of the frame, for simultaneously separating the free ends of the two lateral wings with respect to the free ends of the central wings, In particular, they act simultaneously on the longitudinal plane, i.e. in the direction of the separation of these side devices with respect to the central fixing device, and are provided with a control according to the teachings of the above-mentioned European patent application and with the features characteristic of the invention. It is possible to engage and disengage the two contact lines at the same time, as if using a movable carriage.

In this case, however, there is another problem when this known carriage is used in connection with an overhead line with two contact lines, ie one for replacement, eg damaged. If you remove only the contact wire of and leave the other wire intact,
It can be seen that this other contact wire also comes to be removed, and as a result the contact wire becomes unusable until the other contact wire replaces the contact wire to be replaced and is likewise installed at the same time.

However, as can be seen here, between the free ends of the respective side wings and the free ends of the central wings, there were two contact lines clamped for integration with the laying body. If the overhead line is solely due to the prestress of the elastic deflection of the side wings, the absence of one of the contact lines has little effect on the laying body's ability to hold the other contact line.

Having confirmed this, another object of the present invention is the one described in the above-mentioned European patent application when the carriage is used in connection with an overhead line with two contact lines. Another solution is to take full advantage of the possibility offered by the carriage of the present invention to control the position of the free end of each lateral wing relative to the free end of the central wing.

Thus, according to a preferred embodiment of the carriage according to the invention, the means for transporting the lateral fixing device arranged on one side of the longitudinal plane are provided on the other side of the longitudinal plane. Is independent of the means for transporting the lateral fusing device located at.

This independence leaves the other contact line in place, under conditions suitable to allow continued use of the feeder line throughout the entire time required to replace the removed line. As is, for example, when only one wire is damaged, only that wire of the installed overhead wire can be removed, if necessary, and then a replacement wire can be installed without disturbing the contact wire left in place It is extremely advantageous in that Such a design of the mobile platform thus makes it possible to take full advantage of the form of contact line retention by the laying body.

In this regard, the side wings of the laying body enable the free ends of the central wings to be stressed as described above by the free ends for the tightening of the contact line. Although elastically flexible, the central wing is elastically flexible like the side wing for structural purposes, i.e. for sizing across the longitudinal plane of the laying body, or for that purpose. Even if it has, at least as long as the contact line is present, this central wing part is compensated by the symmetry effect on the stress exerted on it by the two contact lines at its free end due to the prestress of the side wings. It will be appreciated that can be made relatively rigid in the sense that it does not undergo elastic deflection. If one of these contact lines is temporarily missing, the central wing will then experience elasticity until the stress it exerts on the remaining contact line balances the stress exerted on this line by the corresponding flank wing. This elastic deflection of the central wing corresponds to only a short, temporary period of service of the overhead wire according to the invention, and the deflection of the laying body is such that this deflection is almost imperceptible. It is easy to size the central wing perpendicular to the symmetrical intermediate longitudinal plane.

As shown in the above-mentioned European patent application, the free ends of the respective side wings of the laying body are directed towards the base and cantilevered against the respective side wings in the separating direction with respect to said plane. Advantageously, according to the invention, in order to facilitate the advancement of the laying body or the laying body in alignment with the laying body when arranged and having respective flat longitudinal faces substantially perpendicular to said plane. The detachable mechanical connection between the frame of the carriage and the laying body is a rotating means on one and the other of said flat surfaces, as in the case of the carriage described in the above mentioned European patent application.

The central fixing device, the side fixing device, and, in correlation, the laying body are also preferably designed to facilitate easy advancement of the carriage.

Therefore, according to a preferred embodiment of the invention, as also described in the above-mentioned European patent application, the free end of the central wing device of the laying body is oriented opposite the base and is flush with said plane. And having a longitudinal groove located between the corresponding beaks, the free ends of the respective side wings of this same laying body facing the base and spaced from said plane. With respect to the carriage according to the invention when it has respective longitudinal grooves offset relative to the respective beaks in each direction, the central fixing device is arranged along said longitudinal plane and along the axis of rotation. At least one central roller wheel that is rotationally attached to the frame about an axis perpendicular to the longitudinal plane that is fixed to the frame against translation and is fitted in the groove of the central wing portion.・ Side fixing device Each of them is arranged on both sides of the longitudinal plane and is symmetrically attached to the longitudinal plane in each stationary position, and is rotationally attached to the frame about the same axis perpendicular to the longitudinal plane. , Each of which has at least a pair of side surface rolling wheels that can fit in one of the grooves, and the means for moving the side surface fixing device is adjustable along the rotation shafts of the side surface rolling wheels. It is configured to include various positioning means.

Therefore, in order to ensure the above-mentioned independence between the means for moving the side fixing devices respectively arranged on both sides of the symmetrical intermediate longitudinal plane of the moving table, an adjustable positioning of the side rolling wheels. Means: slidably attached to the frame along their axis of rotation, fixed relative to the frame against rotation about their axis of rotation, along the axis of rotation Respective sliders carrying respective side rolling wheels which rotate about their said axis of rotation within the possibility of translation, -rotatably mounted to a frame about their said axis of rotation and respectively by threads Respective screws which are engaged with the sliders of the above and are fixed to the frame against translation along their rotation axes, and which are provided with operating means for rotating with respect to the frame about these rotation axes. Equipped with Configured.

[0024] Preferably, the rotation shaft of the central rolling wheel has a rotation axis of the pair of lateral rolling wheels between which the central rolling wheel is arranged so that the central rolling wheel and the side rolling wheels can operate under optimum mechanical conditions. It is one with that.

For this reason, it is also desirable for the carriage to be stabilized in orientation with respect to the laying body, and according to a preferred embodiment of the laying carriage according to the invention: The central fixing device is symmetrical for the propulsion device. Two sets of said central rollers which are mutually symmetrical with respect to a given cross-section of the frame and which constitute a surface, wherein the lateral fixing device is two sets of said pair, which are mutually symmetrical with respect to said cross-section. The means for moving the side fixing device is provided with two sets which are independent of each other and respectively correspond to each other.

Naturally, the engagement of the or each central wheel in the groove of the free end of the central wing and the engagement of the central wheel in the groove of the corresponding free wing of the side wings respectively A direction separating the external forces suitable for increasing their elastic bending stresses at their free ends with respect to the central wing, compared to the prestressed state in which they were placed to hold the wires. In addition, it must be sufficient to transmit to the side wings.

Thus, as shown in the above-mentioned European patent application, when each groove has a V-shaped cross section, advantageously at least one central wheel and at least one pair of said pairs are provided. Each of the side wheels is configured to have a respective convex peripheral edge having a V-shape when cut at any plane that tilts the respective rotation axis.

Similar to the central fixing device and the side fixing device, and like the mechanical connection means between the frame and the laying body of the carriage according to the invention, the propulsion device also preferably facilitates the above-mentioned advancement of the carriage. Designed to do.

Therefore, according to a preferred embodiment of the propulsion device, the propulsion device is rotatably mounted on the frame about an axis perpendicular to the longitudinal plane, each of the two contact lines being A roller provided with two peripheral grooves symmetrically to each other with respect to the longitudinal plane, the propulsion device moving means having a rotation axis of the roller along the transverse direction with respect to a frame. Is equipped with adjustable positioning means.

Next, advantageously, the adjustable positioning means of the axis of rotation of the roller are: -fixing the axis of rotation of the roller with respect to the slider, in the transverse direction without the possibility of any other relative movement; A slider slidably attached to the frame, and rotatably attached to the slider about the transverse axis of the longitudinal plane and engaged with the frame by a screw thread to attach to the rotational transverse axis. A screw fixed to the slider against said translation and provided with an operating means for rotating with respect to the frame about said rotational transverse axis.

Other characteristics and advantages of the carriage according to the present invention will become more apparent by reading the following description of the non-limiting embodiments of the present invention with reference to the accompanying drawings.

FIG. 1 is a side elevational view of a feeder overhead wire with two contact wires for the same laying body, for example installed in a railway tunnel to ensure power feeding of an electric powered vehicle.

FIG. 2 shows this catenary in a normal cross section along the plane indicated by II-II in FIG.

FIG. 3 shows two longitudinally adjacent two along the plane indicated by III-III in FIG.
The catenary is shown in a cross section at the seam between two layings.

FIGS. 4 and 5 are according to the invention for realizing the laying or removal of one or both of the contact lines of the overhead line shown in FIGS. 1 to 3 for laying bodies or alignment of such bodies. Figure 6 shows a carriage, which is in a use position, but shown stationary, without applying traction to the free ends of the lateral wings in a direction away from the free ends of the central wings.
Is indicated by IV-IV or V-V, and the catenary is also shown in a cross-sectional view by a cross section through which the cross section can be seen.

FIG. 6 shows the pedestal in a section according to a symmetrical, in this case common, longitudinal line parallel to the intermediate longitudinal plane of the overhead line and the pedestal, which is indicated by VI-VI in FIG.

FIG. 7 shows a detail of the moving table in a cross section taken along the cross section indicated by VII-VII in FIG.

FIGS. 8 and 9 show the carriage in the same cross-section as that of FIG. 4, which is in the use position, but which exerts a traction force on two sides in a direction away from the free end of the central wing. It is likewise shown in the actuated state in which it is applied to the free ends of the wings, respectively, or to only one of them.

In order to simplify the description, it is assumed that the overhead line is straight and horizontal thereafter.
Of course, it may also be curved and / or sloping; in the case of a curvilinearly laid catenary, the concept of the catenary, in particular the intermediate longitudinal plane of the laying body, is defined as By substituting it for the cylindrical surface defined by the intermediate overhead line, the person skilled in the art will be able to adapt the following description easily in such cases. At this time, the intermediate fiber of the overhead wire or the laying body is regarded as the reference in the longitudinal direction.

In the illustrated embodiment thereof, which corresponds to the most general case, the horizontal, its longitudinal direction is indicated by 2, and the horizontal, its symmetrical intermediate longitudinal plane is indicated by 3 here. The feeder line 1 also comprises a plurality of longitudinal layings 4 arranged in longitudinal extension relative to each other with respect to the plane 3, these layings 4 being, as will be described in detail below, seams. The plates 5 are assembled together, butted together. For example, each laying body 4 has an unmarked longitudinal dimension of 12 meters, and two laying bodies 4 longitudinally adjacent to each other are:
Leave a sufficient longitudinal clearance 6 between them on the order of a few millimeters to a few millimeters, but these numbers are given as examples only and other numbers can be selected without departing from the invention. Will be able to

As is known per se, the laying body 4 is illustrated via individual support elements, not shown, in fact insulators, which are longitudinally separated from one another by a predetermined distance. Not suspended in the dome of the tunnel.

The catenary 1 further comprises two electrically conductive longitudinal lines 7 for contacting the arches of a pantograph carried by the powered vehicle. These contact lines 7 are respectively arranged on both sides of the plane 3 and are symmetrical to each other with respect to this plane, and at most of their longitudinal dimensions at the installation 4 and at the relevant or respective clearances 6. It extends from one of the laying bodies 7 below the other. Each contact line 7 may have a longitudinal dimension of a few hundred meters and thus can extend below the longitudinal alignment of the laying body 4 as required by the length of the tunnel, traditionally It can continue outside the tunnel in the form of a suspended catenary. Thus, FIG.
Although only two layings 4 are shown in the figure, the number of layings 4 to be butted against and positioned will generally exceed two; in special cases, only one of the appropriate longitudinal lengths. The laying body 4 may be sufficient.

Advantageously, as shown, each contact line 7 is in the form of a standardized, well-known catenary of cross section in cross section, ie in the intermediate longitudinal plane 8 of the contact line 7, parallel to the plane 3. V-shaped, generally symmetric to each other, generally each contact line 7
Two indentations located directly above another longitudinal plane 9 that cuts the plane 8 perpendicularly along a longitudinal line 10 passing through the center of the circle defining the respective cross-section of It has a circular shape.

Each contact line 7 thus has a substantially cylindrical shape which rotates about this line 10 and is symmetrical to each other with respect to the plane 8 and corresponds to the notch mentioned above and to the true of the plane 9. It comprises two longitudinally arranged throats or grooves 11.

The cross-section of the two contact lines 7 is constant over the entire longitudinal dimension of these contact lines 7 and the cross-section in which the clearance 6 is measured between two longitudinally adjacent installations 4. The same applies to the cross section of the respective laying body 4, over the entire longitudinal dimension of the laying body 4, between the two flat end faces 12 in the direction.

Each laying body 4 described below is constructed, for example, of an extruded one-piece part; it can advantageously be realized in a manner known per se, like the seam plate 5, of aluminum or an aluminum alloy; In a likewise known manner, the contact lines 7 can advantageously be realized with copper or copper alloys; however, of course, these materials are only given as non-limiting examples.

Upward, when suspended under the dome of the tunnel to ensure suspension of the contact line 7, the laying body 4 is perpendicular to the plane 3 taking into account the orientation of the respective laying body 4. Therefore, the rigid flat base 13 is provided symmetrically thereto. More precisely, this base 13 is perpendicular to the plane 3 and symmetrical to it respectively with respect to the flat longitudinal plane 1.
4 and 15 are respectively defined upward and downward by a flat, longitudinal side 16 parallel to the plane 3 and symmetrical to it on each side in the direction spaced apart from the plane 3. Limited by face. In a way known per se,
The laying body 4 is suspended by means of an instrument 13 on the supporting insulator by means of a clip which comes into engagement with the peripheral areas 17 of the upper surface 14, surface 16 and lower surface 15 directly adjoining one surface of each side surface 16. It

The laying body 4, which is integrally formed with the base portion 13 and overhangs on the surface 15 integrally with the base portion 13, has one central wing portion 18 arranged symmetrically with respect to the plane surface 3 along the plane 3.
On both sides of the plane 3 are provided three flat longitudinal wings, with two lateral wings 19 arranged symmetrically to each other and substantially parallel to this plane 3. Relative to their respective connection with the base 13, ie downwards, the central wing 18 and the two side wings 19 have respective free ends 20,21. Each wing 18 as well as the connection of each wing 18, 19 with the base 13
, 19 free ends 20, 21 are rigid, but at least the lateral wings 19, and optionally the central wings 18, have their connection to the base 13 and their free ends 20,
It is possible to elastically bend between itself and 21.

For this reason, the respective side wings 19 are substantially flat and substantially parallel to the plane 3 in the direction toward and away from the plane 3, respectively.
Limited by 2,23. The surfaces 22 and 23 of the respective wings 19 are connected to the lower surface 15 of the base 13 between the peripheral areas 17 of the lower surface 15 by respective cutting surfaces 24 and 25, respectively, in particular with respect to its free end 21, which is particularly flat. In the direction of separation with respect to 3, the blades 19 approach each other downwards to enable the aforementioned elastic deflection of the wings 19.

Similarly, the central wings 18 are connected at the lower surface 15 of the base 13 by each cutting surface 27, and on each side of the plane 3 by two flat longitudinal surfaces 26 approaching each other downwardly, Limited in the direction away from the plane. Also, as a result, the elastic flexibility with the central wing portion 18 occurs perpendicular to the plane 3,
Because of its symmetry, it behaves as a whole rigid body together with the base 13 in the normal use conditions of the laying body 4, ie when there are two contact lines 7 underneath it, which is to be read below. Will be readily apparent to one of ordinary skill in the art.

At the location of the free end 20 of the central wing 18 downwards, each of the faces 26
Since the two faces 28 are symmetrical to each other with respect to the plane 3, they are connected to respective flat longitudinal planes 28 which are spaced downwardly from the plane 3. Plane 3 downward
In a direction away from each other, each of these faces 28, from its connection with the face 28, approaches the plane 3 in a downward direction, into each flat longitudinal plane 29, an unmarked cut. Connected by the surface itself. The faces 28 and 29 are oriented in a direction away from the plane 3 when viewed in cross section and have standardized shapes and dimensions for fitting in the respective grooves 11 of the respective contact lines 7. The shape of the beak portion or the claw portion 32 is defined.

Towards the bottom, ie furthest away from the base 13, each face 29 is connected to a flat longitudinal face 30 of the free end 20 of the wing 18, which face 30 has two faces 30 above. Toward each other, open downward, and are symmetric with respect to plane 3
A longitudinal groove 31 having a V-shaped cross section is defined between the two beaks 32 and rises up from its connection with the surface 29 so as to be interconnected along the plane 3.

The surface 22 of each flank wing 19 is a flat longitudinal surface 33 oblique to the plane 3 where the surface 33 approaches downwards, at each free end 21 site.
It connects itself downwards.

This surface 33 is inclined downwards by a cutting plane into a slope of a surface 29 located on the same side of the plane 3 and a flat longitudinal surface 35 which is away from the plane 3 with an inclination opposite to that of the plane. The inclination of the surface 28 lying on the same side of the plane 3 as it is connected to itself, and the downward direction of the flat longitudinal surface 34 which approaches the plane 3 downwards with respect to the plane 3 itself. Connected. Downwardly, the surface 35 is inclined with respect to the plane 3 opposite to the inclination of the surface 30 located on the same side of the plane 3, and the distance of the plane 3 that exceeds the distance separating the surface 23 and the side wing 19 of interest. Up to the plane 3 is connected to a flat longitudinal surface 36, which rises in a direction away from it.

The faces 34 and 35 are thus assembled to the free end 21 of this wing 19 along the direction perpendicular to the plane 3 by mutual assembly of the contact line 7 and the laying body 3 shown in FIGS. In position, another groove 11 has a standardized shape and dimensions for fitting in the groove 11 of the contact line 7 which fits in this beak 32, arranged directly opposite each beak 32 The beak or claw portion 37 is defined. In this position, the two beaks 32 and 37 are
They are symmetrical to each other with respect to the plane 8 of the contact line 7 held between them and are arranged almost or almost entirely above their plane 9 and at this time the corresponding side wings 19
For the beak portion 32 located on the same side of the target beak portion 37 and the plane 3
With respect to the contact line 7 which is itself supported towards the plane 3, it is placed under the prestress of elastic deflection in the direction away from the plane 3 by the support of its beak 37 towards the plane 3. A predetermined clamping effect of the respective contact line 7 is then obtained between the corresponding two beaks 32 and 37, so that the respective contact line 7 and the laying body 4 are more precisely aligned with one another in the longitudinal direction. Each of the installed laying bodies 4 is integrated and contacts perpendicular to its plane 8 so as to obtain close contact of each of the two laying bodies 4 with each of the two contact lines 7 over the entire longitudinal dimension thereof. In the production of the laying body 3, a mutual spacing not exceeding a predetermined value of the mutual spacing of the grooves 11 of the line 7 is applied to the beak portions 32 and 37 before the laying of the contact line 7 so that the respective side wings are provided. This elastic flexure prestress can be predetermined by appropriate sizing of section 19. In a manner known per se, the conductivity at this site corresponds to the respective beak 32, 37 and the corresponding groove 1
It can be improved advantageously by interposing a contact grease between the two.

This effect of the integrated fastening of the laying body 4, or of each contact line 7 with the respective laying body 4, and of the conductive mutual contact results only from the elastic deflection prestress of the lateral wings 19.

Naturally, due to the symmetry, the flexural prestressing effect of the side wings 19 is, via the corresponding contact lines 7, from the free ends 21 of the two side wings 19 in the direction of the plane 3 in the direction of the wings 18. The stresses experienced by the free ends 20 of the are balanced so that they do not cause any deflection of the central wing 18 when the two contact lines 7 are present. When one of the contact lines 7 is temporarily absent, the wings 18 flex elastically from the corresponding side wings 19 via the remaining contact lines 7 under the action of the thrust it receives. However, the remaining contact lines 7 on the one hand do not inadvertently fall off, which further facilitates the continuous laying of the two contact lines 7 under each laying body 4, and on the other hand respectively. Maintains a conductive close contact with the laying body 4, thus allowing the use of the feeder line 1 with only one contact line 7 if the other contact line 7 has to be removed due to damage, for example. Thus, the central wings 18 and corresponding side wings 19 are well retained between the free ends 20 and 37.

In the direction of separation with respect to plane 3, each surface 36 is substantially parallel to plane 3,
A flat longitudinal surface 3 further away from the corresponding surface 23 of the lateral wing 19.
8 which is approximately perpendicular to the plane 3 and is thereby directed upwards and is cantilevered flat with respect to the plane 3 in a separating direction with respect to the side wings 19. It is connected to this surface 23 by a longitudinal surface 39. The face 36 in the region closest to the face 38, the face 38 and the face 39, at the corresponding free end 21 of the side wing 19, in the direction away from the plane 3 and to the face 23 of the side wing 19. To define a cantilevered rigid flange 40, which allows, in particular, the upper surface 14, side 16 of the base 13.
Of the side wings 19 and covers the surface of the side wing 19, but in the lateral direction downward.
With half of each contact line 7 placed under the plane 9 open, a removable insulating lid (not shown) that engages the flange 40 is continuous in the longitudinal direction suspended from the dome of the tunnel. It is possible to hook on the laying body 4 between the two insulators. Within the area of each surface 36 closest to the corresponding surface 38, having a V-shaped cross-section symmetrical with respect to each plane 42 substantially parallel to plane 3.
Downwardly opening longitudinal grooves 41 are advantageously recessedly arranged in the corresponding flanges 40 and offset in the direction of separation with respect to the plane 3 and respectively to the corresponding beak 37. In position, the groove 41 thus arranged in the flange 40 can advantageously be used on the flange 40 to ensure anchoring of the lid by the elasticity of the lid.

As a matter of course, the assembly seam plate of two laying bodies 4 which are butted and are adjacent to each other in the longitudinal direction must not impair the integration effect of the laying body 4 and the contact line 7 due to only the elasticity of the side wings 19. Therefore, the seam between each side wing 19 of the laying body 4 and the side wing 19 of the adjacent laying body 4 located on the same side of the plane 3 overcomes the clearance 6 and thus the same of the plane 3 It is realized by respective seam plates 5 respectively integrated with one and the other of the lateral wings 19 placed on the side.

To this end, according to the preferred embodiment, and as can be seen from a review of FIGS. 1 and 3, within the longitudinally positioned zones near each of the end faces 12 of the laying body 4,
The two side wings 19 of the laying body 4 are here essentially perpendicular to the plane 3 and along four mutually parallel axes 43 arranged two in the same longitudinal direction and two in the same transverse direction. , But not shown in FIG. 1 to simplify FIG.
Each bolt 45 is perforated by a respective hole 44 extending therethrough on both sides to allow it to pass coaxially.

Each of the seam plates 5 has a side wing 19 and a wing 1 of the corresponding laying body 4.
8 has the shape of a longitudinal grid connected to the faces 22 of the two side wings 19 which must be connected to each other, the head of the bolt 45 thereby corresponding to the face 23 of the side wings 19 Abutting these faces 22 by screwing in tapping holes 46 of the respective bolts 45, coaxially with the tapping holes, which are respectively provided for each of the holes 44, which are advantageously provided with spring washers 47 which abut against them. Retained.

As a non-limiting example, each seam plate 5 can have a longitudinal dimension on the order of 40 cm and the hole 43 closest to the target surface 12 of each laying body 4 has a distance on the order of 5 cm. Is longitudinally spaced from this surface 12 and the hole 44 furthest from this surface 12 is longitudinally spaced from it by a distance of about 15 cm. However, these numbers are provided as non-limiting examples, and different values can be selected without departing from the scope of the invention.

In addition, the seam plate 5 is a flat surface 3 so that there is no risk of contact with the central wing 18.
Perpendicular to the plane 26, having a thickness less than the spacing that each surface 22 has with respect to the corresponding surface 26, perpendicular to the plane 3 so that the rod of the bolt 45 does not itself come into contact with the central wing 18. Dimensioned.

However, depending on the seam plates 5, when considered as a whole, two seam plates 5 that ensure the assembly of two longitudinally adjacent layings 4 are provided by at least the laying body 4 to the current. It has a cross section that is at least equal to half the cross section of the respective laying body 4, so as to provide a passage cross section equal to that of the one.

Thus, the whole formed by the laying body 4 assembled together with the seam plate 5 is a clearance 6 which can be considered negligible in this respect.
Aside from ensuring not only the effective retention of the two contact lines 7 over their entire length, but also the cross section required for current passage over the entire longitudinal dimension of the catenary 1.

[0066]   Therefore, as a non-limiting example, the cross section of each laying body 4 is 3120 mm. ² And each conductor 7 is typically 107, 120 or 150 mm²Disconnection
1600 mm on each seam plate 5 when it has a face²Trial with cross section
Good results have been obtained in experiments; of course, since these values do not affect the present invention,
You will be able to choose the value of.

In addition, structurally, the laying body 4 is suitable for preventing the conductor wire 7 from taking a corrugated shape due to the bending of the overhead wire 1 between the insulators of two supports that are continuous in the longitudinal direction. Can be advantageous. For this reason, by defining a predetermined mutual spacing of the support insulators, the suspension by the insulator and the contact line 7 at rest, i.e. before being suspended by the insulator on the dome and before the laying of the contact line 7. After the hanging, each laying body 4 is manufactured so as to have a predetermined retreat angle so that the retreat angle is not affected by the weight of the laying body 4 and the contact line 7. The determination of the receding angle thus imparted to each laying body 4 during manufacture depends on the usual suitability of the person skilled in the art, and by virtue of such a design of the laying body 4 any of the overhead lines which are mutually flexible It makes it possible to prevent an increase in suspended insulation, which is usually provided in excess to combat trends.

In the most general case, during the assembly of the overhead line 1, a supporting insulator is placed under the dome, and then the or each laying body 4, initially without contact lines 7, if necessary a seam. Starting from the installation, by assembling longitudinally adjacent laying bodies 4 with each other by means of plates 5, the contact lines 7 can only be attached thereafter.

For this reason, the carriage 48 according to the present invention is sufficient with respect to the free ends 20 of the central wings 18 to insert the respective contact lines 7 between the respective pairs of beaks 32, 37. To separate the free ends 40 of the side wings 19 and then carry out this insertion, and in response to the longitudinal advance of the carriage 48, within the continuous longitudinal section, the central wings 1
By means of its further groove 11 on the beak 32 of each of the free ends 22 of the contact lines 7
To engage the respective beak portions 37 with the elasticity of the side wing portions 19 so as to come into engagement with the grooves 11 of the respective contact lines 7, thereby releasing the free ends 40 of the side wing portions 19. By advancing this carriage 48 along the laying body 4 or the laying body 4 aligned with one another in the longitudinal direction, a non-limiting embodiment is shown in FIGS.
Advantageously, the carriage 48 according to the invention, which will be described below with reference to FIG.

In consideration of the use position of the overhead line 1, most of the movable table 48 is arranged under the overhead line, and FIG.
9 to 9 and below, in a predetermined use position, which serves as a reference for the description of the transfer table 48, preferably by means of which also its longitudinal movement, preferably by rolling, is provided locally for the installation body. 4 or, as the case may be, suspended in two longitudinally adjacent layings 4 when located at the interconnection site of the laying body. For convenience, in the following, it is assumed that the carriage 48 is suspended on a single laying body 4 and its suspension on two consecutive laying bodies 4 is done under the same conditions, and by advancing it along the overhead line 1,
As will be readily understood by reading the description below, it is assumed that there is no problem in transitioning from one laying body 4 to the laying body 4 adjacent in the longitudinal direction. Further, in this description, the overhead line 1 is complete, ie two suspension lines 7 unless otherwise noted.
Is fixed to the laying body 4 or an alignment of the laying body 4, which is, for example, 2
This corresponds to the state of the contact line 7 before the renewal by replacing only one of the contact lines 7 or one of them.

The carriage 48 is mostly positioned at a height lower than that of the catenary 1 and is identical to the symmetrical intermediate longitudinal plane 3 of the catenary 1, with the result that also with respect to the longitudinal plane to which reference numeral 3 is given. A rigid frame 49 having an overall shape close to a symmetrical right parallelepiped is provided. The rigid frame 49 further comprises a symmetrical transverse plane 50, the longitudinal direction or transverse direction of which shall be referred to the longitudinal direction of the overhead line 1.

More precisely, in the illustrated embodiment, the frames 49 are substantially rectangular, substantially rectangular to each other, symmetrical to each other with respect to a plane 3 parallel thereto, and symmetrical with respect to a plane 50 respectively. , Two flat rigid side plates 51, two tie bars 52 at both longitudinal ends which are symmetrical to each other with respect to the plane 50, and two tie bars 53 which are longitudinally intermediate and symmetrical with respect to the same plane 50. , Perpendicular to plane 3 at
It is formed by integrally assembling four linear rigid tie bars that connect the two side plates 51 to each other. These tie bars 52 and 53 are perpendicular to the plane 3 so as to completely open the beak portions 32 and 37 with respect to the groove 11 of the contact line 7 within the limit that the deflection of the side wing portion 19 is stopped in the elastic region. From the free end 20 to the free end 21 of the central wing 18.
Of the side plates 51 of the side plates 51 at a distance above the plane 38 of the flange 40 of the free end 21 of the side wings 19 perpendicular to this plane 3 and above the distance separating them from each other. Keep in between. In addition, the tie bars 52 and 53 are positioned at a height lower than the height of the contact wire 7 so as not to hinder the movement of the movable table 48 along the overhead wire 1 and the removal and reattachment work of the contact wire 7 described below. To be

In the upward direction, each of the side plates 51 is, for example, a straight longitudinal upper side surface 153 arranged at a level corresponding to an intermediate level of the surface of the free end 21 of the side surface wing portion 19.
Have. Each side plate 51 along this upper side surface 153 is symmetrical with respect to the plane 50, up to a level exceeding the level of the face 38 of the flange 40 of the free end 21 of the side wings 19 without reaching the level of the base 13. The longitudinal movement of the carriage 48 along the catenary 1 also extends upwards in the same plane as the respective side plates 51 and under suitable conditions to allow the contact lines 7 to be removed and reattached. In order not to prevent the separation of the free end 21 of the side wing 19 from the free end 20 of the part 18, the plane 3
Each of the faces 38, each of which is perpendicular to the
By carrying along one side, the longitudinal pins 54 along the upper side surface 153 are integrally carried.

At a level above the level of the face 21 of the flange 40, but lower than that of the base 13, each of the pins 54 has its respective axis perpendicular to the plane 3 to which each of the pivots 55 is directed. Two rotary support shafts 55 of 56 are integrally supported. Perpendicular to this plane, each of the pivots 55, perpendicular to the plane 3, has sufficient play to allow the above-mentioned separation of the free end 21 of the side wings 19 from the free end 20 of the central wings 18. Are left for the side wings 19 respectively located on the same side of the plane 3. The two pivots of the same pin 54 are mutually symmetrical with respect to the plane 50, and likewise the respective pivots 5 of the pins 54 with respect to the plane 3 are the other pins 5.
4 is also symmetrical with respect to each of the rotation supporting shafts 55, that is, is also coaxial with this rotation supporting shaft which is symmetrical with respect to the plane 3.

The respective rotation support shafts 55 are movably mounted on the surface 39 of the flange 40 of the free end 21 of the wing portion 19 located on the same side of the plane 3 and on the respective pins 54 of the respective rolling wheels 57. Ensures a free-rotating mounting about the respective axis 56, without the possibility of other movements with respect to. Like the rotary support shaft 55, the rolling wheel 57 is separated from the free end 20 of the central wing 18 allowing the contact line 7 to be removed and reattached, by a sufficient distance. Even with respect to the lateral wings 19 each lying on the same side of this plane, they are dimensioned so as to leave play, perpendicular to the plane 3.

Four mutually identical rolling wheels 57 roll on the surface 39 of the flange 40 at the same time when the moving base 48 is engaged with the two free ends 21 of the side wings 19 by the frame 49 thereof. , Guidance in the longitudinal direction of the carriage 48 relative to the laying body 4 is ensured.

In a manner not shown, the integration of the respective pins 54 with the corresponding side plates 51 is sufficient to enable the engagement of the mobile platform 48 with the laying body 4 and the unloading of the latter, It is carried out via means which make it possible to displace the pin 54 and the rolling wheel 57 it carries with respect to the position corresponding to their use position described above.
Such a means is similar to the carriage 48 but in the case of a carriage for the laying and removal of a single contact line of a single wire rigid catenary, ie, more precisely, the DELAC.
In the first embodiment, equipped on a mobile platform marketed by HAUX SA, 119 Avenue Louis Roche, F92231 GENNEVILLIERS under product number 552 020, and by the Applicant under the product number 552 411. It is known per se in a second embodiment, which is equipped on a platform. These means
Although generally designated by the reference numeral 58 and thus not described, they could of course be replaced by other means ensuring the same function.

Each side plate 51, on the other hand, is mutually symmetrical with respect to the plane 50 and has two straight and transverse front side plates 59 each having a tie bar 52 at each end positioned in its immediate vicinity, respectively. Are connected to one of each of the front side plates 59 and are generally longitudinal, although they are inclined downwardly from their respective connections to the respective front side plates 52, relative to the plane 50. Two straight lines, symmetrical at both ends in the longitudinal direction
One face 61 and a dimension in the longitudinal direction that is significantly smaller than the dimensions of each of the faces 61, which has a straight, longitudinal, longitudinally intermediate face 62.

In the immediate vicinity of the connection of each surface 61 with the corresponding front side plate 59,
The side plates 51 are perforated by the work vehicle along the overhead line 1 perpendicularly to the plane 3 by the respective engaging holes of the connecting rings that enable the driving of the movable table.

The axes 56 of each pair of rolling wheels 57, which correspond to each other by mutual symmetry with respect to the plane 3, lie in the respective respective transverse planes 64, the two transverse planes 64 thus defined being in the plane 50. They are symmetric to each other, and each of them is 2
Of the two tie bars 52 at substantially the same longitudinal distance from the two tie bars 52 and 53,
Pass between each one and the closest one of the intermediate tie bars 53.

Perpendicular to the plane 3 and to the plane 64 and the same longitudinal plane 65 perpendicular to the plane 3 and located at an intermediate level between the level of the upper side 53 of the side plate 51 and the average level of the plane 61 of their lower side 60. Two side plates 5 along two axes 66 defined by the intersections
1, each has a respective hole 67 defined therethrough by a respective cylindrical lower peripheral surface 68 rotating about a respective axis 66, the surfaces 68 of the different holes 67 having the same diameter.

Due to the respective pairs of holes 67 of the same shaft 67, the side plate 51 is moved to the respective shaft 66.
And a central rolling wheel 70 arranged along a plane 3 which is symmetric with respect to the center wheel 70 and which is rotatable relative to the center roller. Each row 69 of three wheels is carried by a ratio of two side wheels 71.

The two rows 69 of rolling wheels 70, 71 are identical to each other, and in particular with reference to FIG.
Although only one of them is described, as can be seen from the figure, the three wheels 70, 71 in the same row 69 extend between one side plate 51 and the other between the side plates, and each of the holes 6
It is carried by the two side plates 51 via identical carrier shafts 72 of the shafts 66, which traverse each other by 7.

Between the two side plates 51, the carrying shaft 72 is, for example, the inner peripheral surface 6 of the hole 67.
A central section 7 which is confined in the direction of separation with respect to the shaft 66 by an outer peripheral surface 74 which in the usual way has a cylindrical shape which rotates about the shaft 66 with a diameter approximately equal to the diameter of the shaft 7.
Have three. Along the axis 66, the section 73 has a dimension that is slightly smaller than the dimension that separates the side plates 51 from each other perpendicular to the plane 3 and is spaced apart from it relative to the plane 3 on either side of each of which the surface 74 has It is connected to an annular, flat shoulder 75 which rotates about an axis perpendicular to it; the two shoulders 75 are therefore symmetrical to each other with respect to the plane 3 and directed away therefrom. Each of them is placed slightly retracted toward the plane 3 with respect to the side plates 51 located on the same side of the latter.

Integral with the central section 73 on each side of the central section 75} along the axis 66,
The surface 77 of the shoulder 75 is one of the surfaces 74 of each of the shoulders 75, so that the carrying shaft 72 is arranged in a cantilevered manner with respect to the side plate 51 in a direction away from the plane 50. A cylindrical outer peripheral surface rotating about an axis 66, with a diameter smaller than that of one inner peripheral surface of the hole 67, respectively by which the end section 76 traverses the corresponding side plate 51. 77 has a defined end section 76 in a direction away from the axis 66. To this end, along the axis 66,
The face 77 of each end section 76 is connected in a direction away from the axis 3 to an end face 78 in the form of a disc perpendicular to the axis 66, the two end faces 78 being symmetrical to each other with respect to the plane 50. The whole formed by the two side plates 51 assembled together by the tie bars 52 and 53 is perpendicular to the plane 3 by a distance which exceeds the total dimensions it has.
6 separated from each other.

A section 76 at each end of the carrying shaft 72 with respect to each corresponding hole 67.
Coaxiality is ensured via the respective coaxial sleeves 79, and also in the symmetrical relationship with the plane 3 with respect to the side plates 51, also the maintenance of the carrier shaft 72.

The sleeves 79 associated with the same carrying shaft 72 are identical and are arranged symmetrically with respect to the plane 3.

Towards the axis 66, each has a diameter identical to that of the outer peripheral surface 77 of the respective end section 76 of the carrying shaft 72 and to the outer peripheral surface 74 of the central section 73 of the carrying shaft 72, respectively. Which is defined by two cylindrical inner peripheral surfaces 80, 81 which rotate about the axis 66. Due to their inner peripheral surfaces 80, 81, the respective sleeves 79 respectively have a part of the outer peripheral surface 77 of the respective end section 76 and a part of the outer peripheral surface 74 of the central section 73 of the carrying shaft 72, respectively. It is brought into inductive contact with rotation about 66. Each sleeve 79
The two inner peripheral surfaces 80, 81 of the are interconnected by an annular, flat shoulder 62 which rotates about an axis 66 perpendicular to it, which shoulder 62 is directed towards the plane 3 and is flat, However, with respect to the carrying shaft 72, the sleeve 79 is centered on the shaft 66.
Are supported in a rotatable relationship against respective shoulders 75 of the carrying shaft 72.

In the direction away from the shoulder 82 along the axis 66, the inner peripheral surface 80 of each sleeve 79 rotates about its axis perpendicular to it, and its respective annular, flat end surface 83. And the surface 83 is oriented away from the plane 3. The distance separating the face 83 and the shoulder 82 from each other along this axis 66 is about this axis the end face 78 of the corresponding end section 76 and the shoulder 75 connecting this end section 76 to the central section 73. Therefore, since it is smaller than the separation distance from each other, the end section 76
Forms a protrusion in the direction of separation with respect to the plane 3 along the shaft 66 with respect to the end face 83 of the corresponding sleeve 79.

The inner peripheral surface 81, on the other hand, has a dimension of less than half the distance along the axis 66 which separates the shoulder 75 of the carrying shaft 72 from each other along the axis, so that this surface 81 is sleeved towards it. Not reaching the plane 3 connected to another end face 84 of 79, this other face 84 rotates about an axis 66 which is flat, annular and perpendicular to it, and thus is directed to the plane 3. . The faces 84 of the two sleeves 79 are thus directed towards each other and symmetrical to each other with respect to the plane 3 so that they are distributed between them, along the axis 66, over the plane 3 and on both sides thereof. A space 85 is left.

In the direction of separation with respect to the shaft 66, each of the end surfaces 83, 84 of the respective sleeve 79 is connected to a respective outer peripheral surface 86, 87 of the sleeve, which is directed in the separation direction with respect to the shaft 66. It

Each of these outer peripheral surfaces 86, 87 has two sections juxtaposed to one another along the axis 66 in a manner described below, but generally the section 87 is perpendicular to the axis 66. Having a larger dimension than that of 86, these two sections 86 and 87 are interconnected by a flat, annular shoulder 89 which rotates about an axis 66 perpendicular thereto, which shoulder 89 is flat. Shoulders 8 of the sleeve 79 oriented away from
It is offset in this direction with respect to 2. Since along the axis 66 this offset is equal to half the difference between the distances separating the two shoulders 75 of the carrier shaft 72 and the two side plates 51 along this axis, each of the shoulders 89. Respectively with respect to the side plate 61 and with respect to the carrying shaft 72 about the axis 66.
In the rotation enabling rotation of 9, the bearing shaft 72 and the corresponding sleeve 79 are respectively fixed to the two side plates 51, since they are supported in the direction away from the shaft 3 with respect to the respective side plates 51. Is ensured by means of which the carrying shaft 7
2 is symmetrical with respect to the plane 3 and the two sleeves 79 associated therewith are mutually symmetrical with respect to this same plane 3.

In each respective first section 90, 91 immediately adjacent to the shoulder 89, each of the outer peripheral surfaces 86, 87 has a cylindrical shape which rotates about the axis 66 and the diameter of the section 91 of the surface 87. Is larger than that of the section 90 of the surface 86, which is equal to the diameter of the inner peripheral surface 68 of the hole 67 of the side plate 51, so that each section 90 is in a relationship to induce relative rotation about the axis 66. It is brought into contact with the inner peripheral surface 68 of 67, which ensures the coaxiality of the respective sleeve 79, as well as that of the carrier shaft 72 for each of the two holes 67 of the same axis 66.

Along the axis 66, the section 90 of the outer peripheral surface 86 is the side plate 5 measured along the axis 66.
At least equal to the thickness of 1 but smaller than the dimension separating the end face 83 and the shoulder 89 of the sleeve 79 from one another along this axis, so that the shoulder corresponds to the plane 3 in the direction of separation. Which is cantilevered with respect to the side plate 51 and has a second section 92 of its outer peripheral surface 86, the shoulder being axial relative to the side plate 51 and the carrying shaft 72 without relative movement along this axis 66. Axis 66 has a square shape, shown in FIG. 5, that provides engagement with a removable key 88, which allows each sleeve 79 to be rotated independently of the others about 66. Vertical to.

On the other hand, the outer peripheral surface 87 of each sleeve 79 defines its first section 91 on the surface 8
4 with a second section 93 connected to it, provided with the above-mentioned rotational movement of the sleeve 79 about the axis 66, one at a rate per sleeve 79, relative to the corresponding side plate 51 of this sleeve 66. Each slider 94 slidably mounted on the sleeve along the shaft 66 while being fixed against the rotation about the
With respect to the intended sleeve 79, carrying shaft 72 and side plate 51, along this axis it has the shape of a thread with a diameter beyond that of section 91 which can be converted into a translational movement.

For this reason, each slider 94 has the overall shape of an annular cylinder that rotates about the axis 66, and toward that end, the slider 94 is separated from the plane 3 in two directions that are continuous in this order. Limited by an inner peripheral surface 95 having 96, 97. The section 96 has a tapping complementary to that of the section 93 of the outer peripheral surface 87 of the sleeve 79, with which the slider 94 cooperates like a nut and a screw, perpendicular to the plane 3 and of this section 93. It has the same dimensions; while the section 97 has a diameter equal to that of the section 91 of the outer peripheral surface 87 of the sleeve 79, but the corresponding beak 3
The side of the laying body 4 with respect to the free end 20 of the central wing 18 for the removal of the contact lines 7 of 2, 37 or the engagement of such contact lines 7 between these beaks 32, 37. It has a dimension perpendicular to the plane 3 which is smaller than that of a section 91 of at least equal distance to it, which is required to separate the free ends 21 of the wings 19.

Towards the plane 3 the tapped section 9 of the inner peripheral edge 95 of the slider 94
6 is connected to the end face 98 of the slider 94, which is flat, is directed towards the plane 3 and is annular and rotates about an axis 66 perpendicular thereto. The tapped section 96 is then screwed to the bottom of the threaded section 93, the rest position of the slider 94 shown in FIGS. And the surface 98 is spaced apart from the shaft 66 in the direction of the surface 84 of the sleeve 79.
And extend in the same plane.

In the direction of separation with respect to the plane 3, the slider 94 is also limited by an annular, flat surface 99 which rotates about an axis 66 perpendicular to it. This surface 99 is oriented away from the plane 3, i.e. its dimensions along the axis 66, due to the removal of the contact line 7 or the laying thereof, with respect to the free end 20 of the central wing 18 a side wing. A play 100 equal to the above-mentioned stroke that the free end 21 of the part 19 must achieve,
In the above-mentioned stationary position, while being secured with respect to this side plate 51, it is arranged opposite to the side plate 51 positioned on the same side of this plane 3.

The value of this play 100, which is smaller than the dimensions of the sections 93 and 96 along the axis 66, causes the sleeve 79 to move when the sleeve 79 is subjected to a suitable rotation to cause mutual unthreading of the sections 93 and 96. On the other hand, that is, with respect to the carrying shaft 72 and the side plate 51, it is the maximum value of the possible stroke of the slider 94. During this process, the section 97 of the inner peripheral edge surface 95 of the slider 94 slides on the section 91 of the outer peripheral edge surface 87 of the sleeve 79 to allow the slider 94 to slide into the sleeve 79, the carrying shaft 72 and the hole 67 of the side plate 51. Secure the coaxiality.

Sleeve 7 triggered by key 88 in engagement with section 92 of square cross section
The rotation of 9 is thus converted into a translation of the slider 94 perpendicular to the plane 3 so that the slider 94 penetrates along this axis 102 on both sides, ie from one of the end faces 98 and 99 to the other. Axis 1 perpendicular to plane 3 in hole 103
A plane 3 along 02 but offset relative to axis 66 and maximally equal to the distance separating it from end face 84 of sleeve 79, and preferably as close as possible to this latter distance.
Due to the engagement of the handle (tenon) 101, which is integrally carried by the flat surface 3 projecting toward the distance from the shaft 66, the shaft 66 is disengaged from the side plate 51 located on the same side of the flat surface 3.
Fixed against rotation around. For example, the handle 101 has a cylindrical outer peripheral edge surface 104, which is perpendicular to the axis 102 and which is oriented in the plane 3 and which rotates about the axis 102, between the corresponding side plate 51 and the flat end surface 105. 103 rotates about an axis 102 and has a cylindrical inner peripheral surface 106 whose diameter is the same as that of the outer peripheral surface 104.
Bounded by the axis 102. Advantageously, as can be seen by examining FIG. 6, a plurality of mutually identical holes whose axes 102 are evenly spaced from the axis 66 and equally distributed about its circumference, the rest position 94 of which is its position. When the movable table 48 is attached, the end surface 98 is positioned so as to be substantially flush with the end surface 84 of the sleeve 79.
Provided within slider 94 for selectively engaging handle 101 with one or other of these holes 103.

In the direction of separation with respect to the axis 66, the slider 94 is such that the outer cage, not shown in detail, is free to rotate about the axis 66 with respect to the slider 94 without the possibility of other relative movement. Each of the side wheels 71 capable of bearing one of the thrust bearings 108 carrying one, also not shown in detail, in opposition to the relative movement of the inner cage parallel to and perpendicular to the axis 66. Limited by the outer peripheral edge surface 107 of the track, which can be selected within a wide range of possibilities to be able to be fixed on the slider 94. To this end, the outer peripheral surface 107 of the slider 94
Mounting of the side wheels 71 via the upper bearing 108, the form of this surface 94 for this,
Also, the mounting direction of the thrust bearing 108 belongs to the ordinary ability of those skilled in the art, and the thrust bearing 108 enables the external force traveling in the separating direction with respect to the plane 3 to be transmitted from the slider 94 to the side wheel 71. And is mounted on the slider 94.

A bearing 1 ensuring its mounting on the wheel 71 and the slider 94 along the shaft 66.
08 has a smaller dimension than that of the slider 94, and the rolling wheel 71 has the slider 9
Shaft 66 is such that when wheel 4 occupies its rest position, wheel 71 engages circumferentially into groove 41 in free end 21 of wing 19 of laying body 4 located on the same side of plane 3. Along the slider 94, the wings 19 are shown in FIG. 4 for the two side wheels 71 visible in FIG. 4 and in FIG. 9 for the side wheels 71 located to the left of this figure.
As shown in FIG. 3, a holding structure for the contact line 7 is provided between the beak portions 32 and 37.

For this reason, each side roller 71 is separated from the shaft 66 in the direction away from the shaft 66.
Has a ring-shaped peripheral edge portion 109 that rotates about the center of the slider blades. This peripheral edge portion 109 is a groove of the free end 21 of the side surface blade portion 19 whose shape is located on the same side of the plane 3 in the above-mentioned rest position of the slider 94. 41 at least approximately merges with that of this wing 1
9 with respect to the central wing 18 so that the planes 110 and 42 are then at least approximately coincident and occupy their holding position of the contact line 7 between their beaks 32, 37. When viewed in a cut plane in any plane including 66, the shape is convex in the direction away from the axis 66, more precisely symmetrical with respect to the plane 110 perpendicular to the axis 66, and the groove 41 Has a V-shape that is substantially complementary to the shape of the cross section.

Naturally, the peripheral edge 109 of each side wheel 71 must have a diameter with respect to the shaft 66 which is relevant to this function. As will be readily understood by those skilled in the art, this diameter is defined by the peripheral portion 109 of the side rolling wheel 71 and the unsigned peripheral portion of the rolling wheel 57 superposed thereon with the shaft 66 located in the same plane 64. Perpendicular to 65, the bottom of the groove 41 of the flange 40 having the same separation distance and the longitudinal direction, the flat surface 39, along the transverse direction parallel to the plane 3 have a diameter which is approximately equal to the separation distance from each other. is there.

On the other hand, the central rolling wheel 70 is provided for engaging with the groove 31 of the free end 20 of the central wing portion 18.

Therefore, a peripheral portion 111 having a shape of a rotary body centering on the shaft 66 and narrowing in a direction separating from the shaft 66 is also provided in a direction separating from the shaft 66. It comprises a convex shape when viewed in a section plane in any plane including the axis 66, and more precisely a V-shape, which more or less complements that of the cross section of the groove 31. The diameter of the peripheral portion 111 of the central rolling member 70 is supported by the faces 39 of the two flanges 40, and from the time when the moving base 48 is suspended on the laying body 4 by its rolling wheels 57, in particular the laying body 1. By the person skilled in the art, this peripheral edge 111 engages the groove 31 and cooperates with the latter to ensure that the symmetrical intermediate longitudinal plane 3 of 4 and the symmetrical intermediate longitudinal plane of the carriage 48 coincide. It is determined.

In order to maintain this relationship between the carriage 48 and the catenary 1 or the laying body 4 during rolling of the carriage 48 along the flange 40, the rolling wheels 70 are provided for other relative movements. Without possibility, it is mounted so as to rotate freely about the axis 66 with respect to the carrier shaft 72, independently of the two side wheels 71 that are coaxial thereto. For this purpose, the carrier shaft 72 has the inner cage 112 of the thrust bearing 113 in the two directions of the axis 66 in the interior of the space 85 thanks to an arrangement which is well known to the person skilled in the art and is therefore not detailed here. , Integrally supported. This bearing 113, which is arranged symmetrically with respect to the plane 3 over which it straddles, further comprises an annular ring that rotates about the axis 66,
For this purpose, a central wheel 70 having a suitably shaped inner peripheral surface 115 towards the shaft 66 and the outer cage 114 by means of a suitable knuckle known to those skilled in the art and not mentioned therefor. Unify.

In addition to its role in locating the carriage 48 with respect to the laying body 4 of the overhead line 1, the central wheel 70 is advantageously provided with two sliders 94, which are combined with two side wheel 71 coaxial therewith, on the plane 3. It also serves as a stop to prevent them from crossing their rest position in the direction of approach.

For this reason, in the direction away from the latter, the inner peripheral edge surface 115 of the central wheel 70 has a flat and annular end surface 116 which rotates about an axis 66 perpendicular thereto.
Connected to. 2 symmetrical to each other with respect to the plane 3 and perpendicular to the plane 3 by a distance equal to the distance separating the faces 84 of the two sleeves 79 of the same axis 66 as the central wheel 70 from each other 2 By the key 88 via the corresponding sleeve 79 in the direction in which one of the surfaces 116 approaches the axis 3 once it has reached the rest position,
When the slider 94 tends to be urged, in the direction approaching the shaft 3,
It is thus respectively arranged facing one surface 98 of each of the corresponding sliders 94 which abut against the surface 116 by this surface 98.

In the direction away from the shaft 66, the end surface 116 of the central wheel 70 is connected to the outer peripheral surface 117 of the former, and the latter has a cylindrical shape that rotates about the shaft 66, and its diameter is
For example, two flat shoulders 118, which are identical to those in the area of the outer peripheral surface 107 of the slider 94 directly adjacent thereto, the peripheral portion 111 of the wheel 70 rotating about an axis 66 perpendicular thereto. Connected to this surface 117 by
The two shoulders 118 are symmetrical to each other with respect to the plane 3 and are oriented away from them and are separated from each other by a distance less than the distance separating the surfaces 116 parallel to the axis 66.

As can be seen here, because of the independence between the sleeves 79 about the rotation about the respective axis 66 with respect to the side plate 51, each side roller 71 starts from its rest position and with respect to the plane 3. It is adjustable in its position in the separating direction independently of the others. Side wheel 71 that is separated from plane 3 including the stationary position
It is possible to provide any means for establishing a stable position in any of the positions, and in particular, the surface condition of the thread of the section 93 and the tapping pitch of the section 96 is the outer peripheral surface 86 of the sleeve 79. The square cross-section can be configured to be irreversible for screwing of the respective sleeve 79 in the corresponding slider 94, unless also intentional intervention with the key 88 for the section 92.

On the other hand, according to the transverse axis 119 defined by the intersection of the planes 3 and 50, that is to say surrounded by both the face 64 and the side plate 51, the intermediate tie bar 53.
Carries integrally a nut 120, in which a coaxial screw 123 having an operating square body 124 under the tie bar 53 with a key similar to the key 88 is engaged therein by a thread 122. At a level above the tie bar 53 but below that of the upper longitudinal side 153 of the side plate 51, the screw 123 has a cover with two parallel outer shells 121 occupying mutually symmetrical positions with respect to the axis 119. Integral with a slider having the shape of 120 in translation along an axis 119, but having an upper end that may freely rotate about this axis 119. Each of these shells 121 has a side plate along the plane 50 such that engagement of the pawl 126 into the opening 127 maintains the two shells 121 in a mutually symmetrical position with respect to the plane 3. The same rigid fingers 125, perpendicular to the axis 119, which are coaxially engaged by the respective end pawls 126, are arranged in respective linear openings 127 respectively arranged in each of the 51 and extending parallel to the axis 119. The shaft 124 projects in a direction away from the shaft 124 and is integrally supported. Therefore, any rotation of the cover 120 and, along with it, any rotation of the shaft 124 about the axis 119 relative to the frame 49 is prevented, especially when the screw 123 rotates about the axis 119 relative to the frame 49. This rotation, depending on its direction, is translated into a movement of the cover 120 and with it a movement of the shaft 124 towards or away from the tie bar 53 of the frame 49 and vice versa along the axis 124 in the direction of separation or approach. It Preferably, under normal use conditions described below, the position at which the cover 120 is intentionally imparted to the frame 120 of the movable table 48 by the rotation of the screw 123 about the shaft 119 with respect to the nut 120 and the overhead wire. Screw thread 123 of the screw 123 so as to save for one
The pitch of the nut and that of the nut 120 are irreversible.

Between the two outer shells 121 of the cover 120, a shaft 124 is provided on one or the other so that it can freely rotate about the shaft 124 with respect to the cover 120 without any other possibility of relative movement. A roller 128 mounted for rotation about the center is arranged. This roller 128, thus centrally arranged with respect to the axis 66 of the wheels 70 and 71, has an outer peripheral surface 129 which rotates about the axis 129 in a direction away from the axis 124. The grooves 129 are perpendicular to the plane 3 and evenly distributed on both sides thereof, perpendicular to the plane 3 and beyond the mutual spacing of the intermediate longitudinal planes 8 of the contact lines 7 of the overhead line 1, but perpendicular to this plane 3. It has a dimension that can be less than 41 mutual distances.

The surface 129 is symmetrical with respect to the plane 3 with respect to the axis 126 and is divided into two end sections 130 and with the center section 13 with respect to the axis 126 and across the section 130 symmetrically with respect to the plane 3.
1 and these three sections 130, 131 are cylindrical with the same diameter and rotate about axis 124. Each of the end sections 130 rotates about an axis 124 and has the shape of an annular groove 132 parallel to the plane 3 and also symmetrical with respect to the plane also indicated by reference numeral 8 and having a shape matching the plane 8. Each middle section is connected to the central section 131. As with the plane 8, the intermediate sections 132 are symmetrical to each other with respect to the plane 3.

More precisely, each of the grooves 132 has two sides 133 of a frustoconical shape which rotate about an axis 124 and a diameter smaller than that of the sections 130 and 131.
It has a cylindrical bottom part 134 which rotates around 24 and the two side faces 133 are mutually symmetrical with respect to each plane 8 with each bottom part symmetrically straddling.

The two side surfaces 133 and the bottom portion 134 of each groove 132 are formed by the tie bars 53 of the frame 49 when the movable table 48 is engaged with the laying body 4 of the overhead wire 1 as shown in FIGS. By adjusting the level of the cover 120 with respect to the catenary 1 by one point of the two sides 133 and the bottom 134 of each groove, which is itself in the plane 3 and located on each upper busbar. Moving stand 48 along the laying body 4
To the respective contact lines 7 held by the respective two beaks 32, 37 of the laying body 3 without the wings 121 of the cover 120 coming into contact with the laying body 4 without going against the longitudinal rolling of the laying body. The position and dimensions are determined in a manner readily determinable by one of ordinary skill in the art so that the roller 128 can be moved into the abutting position.

However, the roller 12 along the axis 119 with respect to the tie bar 53 of the frame 49
By adjusting the position of 8, the side surface 133 of each groove of the roller 128 is adjusted.
And the upper busbars of the bottom 134 are spaced apart from the corresponding contact lines 7 in a downward manner by a distance which is not shown but is at least equal to the radius of each of the contact lines 7, in a manner which can be easily understood by those skilled in the art. So that the roller 128 and the cover 12
The rollers 128 may also be brought close enough to these tie bars 53 by appropriate sizing of the 0 and screws 122.

Naturally, the mounting of the roller 128 just described is only one non-limiting example, in particular oriented parallel to the axis 119 and carried integrally by the frame 49, in the example shown the opening 127. It would be possible to choose any other means for ensuring the guiding of the cover 120 carrying it as a slider, for any form of sliding groove constituted by.

Under this condition, the overhead line 1 is updated by replacing the contact line 7 with respect to the insulator carrying the overhead line, more precisely, without removing the laying body 4 in advance. Mobile platform 48 can be used to:

Initially, the catenary 1 is in the state described with reference to FIGS. 1 to 3, that is to say that the or each laying body 3 is oriented such that their free ends 2 are spaced from the free ends of the central wing 8. The two beak portions 32 and 37 hold the two contact lines 7 by the prestress of the elastic bending of the side surface wing portion 19. This state of the overhead wire 1 and this shape of the laying body 3 are shown in FIG.
And 5 are shown.

The first work is based on the predetermined longitudinal direction of the forward movement of the movable table 48 along the overhead line 1.
Immediately downstream of the cutting performed on the contact line 7, the side rolling wheels 71 and the central rolling wheels 70 of the respective rows 69, which are in their respective rest positions, engage in the respective grooves 41 and 31 respectively. The bearing roller 57 is connected to the flange 41 of the free end 21 of the side wing 19.
It consists of placing a carriage 48 on the catenary 1 so that it is placed on the surface 39 of the.

For this reason, the sleeves 79 corresponding to the two side rolling wheels 71 of each set are initially brought into the closest proximity, and the rollers 128 are framed, in a manner which is not shown but can be easily understood by a person skilled in the art. The tie bar 53 of 49 is lowered to the maximum.

The central wheel 70 then ensures that the symmetrical intermediate longitudinal plane of the frame 49 coincides with that of the catenary 1, these two planes being numbered the same as 3 and of the respective grooves 132. Matching the mid-plane with each plane 8 as well as each row 6
It also guarantees that of the middle plane of each side wheel 71 of 9 and the middle plane 42 of each groove 41.

Taking into account its initial positioning, the roller 128 is then at least equal to the radius of the contact line 7, and is preferably spaced downwardly from the contact line 7 by a distance exceeding this radius.

At this time, by rotating the two sleeves 79 in appropriate directions about the respective shafts 66 with respect to the frame 49 simultaneously or alternately using the keys 88,
The two side surface rolling wheels 71 of the same set 61 are gradually separated from the respective central rolling wheels 70, and considering the peripheral engagement of the rolling wheels 70, 71 into the grooves 31 and 41, respectively, as shown in FIG. The free end of the central wing 20 which, due to symmetry, does not bend by itself until the contact line 7 moves the side wing 19 into a predetermined shape with maximum elastic deflection released from both beaks 32 and 37. Due to its elastic deflection with respect to 20, the free ends 21 of the respective flank wings 19 are thus gradually and symmetrically separated from the plane 3.
At this time, the rotation of the sleeve 79 is stopped and only a slight downward pulling force is exerted on the contact line 7, on the one hand the adhesive effect which may result from the presence of contact grease, and on the other hand also by the laying body 4. These contact lines 7 being provided are sufficient to overcome the tendency to save the substantially linear shape; at this time, because of the position occupied by the roller 128, at least in relation to the above-mentioned direction of advancement of the carriage 48. Directly behind, in order to completely remove the contact lines 7 from the laying body 4, they can be flexed and thus the contact lines 7 can be sufficiently lowered locally.

At this time, the contact line 7 is released by pulling the laying body 4 in this direction to the area positioned in the longitudinal direction of the side wing portion 19 of the laying body 4 or the continuous laying body 4. Permitting it to be gradually moved over the desired longitudinal dimension of the catenary 1 in order to make a continuous transition to the maximum elastic deflection shape, whereby the corresponding longitudinally positioned area of the contact line 7 is continuous. Can be released to.

Naturally, the laying body 4 tends to gradually return to the stationary shape behind the moving platform 48 based on the above-described forward direction of the moving platform 48, but the contact line 7 remains at a level lower than the level of the laying body. Thus, by continuing to apply a sufficient traction force downwardly to the contact line 7 after the carriage 48, for example by hand, with respect to the forward direction of the carriage, this tendency causes the contact line 7 to re-integrate. Prevent the connection.

In this way, the carriage 48 is progressively released by gradually releasing the contact lines 7 over the entire longitudinal dimension in which they are desired to be exchanged, until another cutting is performed on these contact lines 7. Run.

At the end of this run, each laying body 4 of the area of overhead line 1 that has run in this way
From which the contact line 7 has been completely removed, and the carriage 48 is moved against the area in question in the direction opposite to the direction of advance described above, for example by rolling on one or more layings 4. It is possible to return to the initial position, whereby the side wings 19 of the laying body 4 are returned to their maximum elastic deflection shape at the upstream end of this section of the catenary 1 in view of the above-mentioned forward direction.

If necessary, brushing of the beaks 32 and 37 and refueling can then be carried out.

At this time, between the respective grooves 132 of the roller 128 and the corresponding spaces between the two beaks 32 and 37, respectively, the respective contact lines 7 whose symmetric intermediate longitudinal planes coincide with those of the grooves 132. It is possible to insert an area at the longitudinal end of the two contact lines 7 by raising the roller 128 with screws 122 until it re-occupies its position shown in FIGS. 5 and 6. The plane 9 is the laying body 4
In this end area, two contact lines 7
The throat or groove 11 of this end region of the can be moved between the corresponding beaks 32 and 37.

In order to connect them to each other, two new contact lines 7 are longitudinally positioned appropriately with respect to the adjacent contact line 7 upstream with respect to the above-mentioned advance direction of the carriage 48. After that, the side wheels 71 in their applied position are held at the free ends 2 of the side wings 19 by a traction force suitable for transferring the side wings 19 to their maximum elastic deflection shape, and the rollers 128 are held. By pulling in this direction while maintaining the position of holding the contact line 7 in such a position that the plane 9 of the contact line 7 occupies its final corresponding level with respect to the laying body 4, The movable table 48 is newly translated in the forward direction with respect to the laying body 4.

[0133] As this moving table moves forward along the or the plurality of laying bodies 4, the side roller 71
Is a continuous transition of the longitudinally positioned area of the side wing 19 of the laying body 4 or the plurality of laying bodies 4 continuous in the advancing direction to the maximum elastic deflection shape. Due to the elastic deflection of the immediately preceding contact line 7, the throat or groove 7 in the positioned area of the new contact line 7 which is also continuous in this direction is provided with the laying body 4
Sequentially installed between the beaks 32 and 37; behind this moving base 48 relative to this direction,
The area of the laying body 4 from which the carriage 48 is progressively separated tends to return to a static shape, but by holding the beaks 32 and 37 in the throat or groove 11 of the contact line 7 in their flexure prestressed intermediate shape. As a result, the contact line 7 is held in the state shown in FIGS. 1 to 3 and the overhead line 1 is reconfigured in stages.

Although not shown in the drawings, the moving table 48 is temporarily moved in a manner easily understood by those skilled in the art.
When their contact lines 7 initially reach the immediate vicinity of the other end of the area of the catenary 1 which is absent, actuate the sleeves 79 to return them to their rest position, i.e. keeping the rollers 128 in that position. The side wheels 71 of each set 69 are brought closer to each other, so that also in this end area, the side wings of the laying body 4 are retained by the contact lines 7 between the beaks 32 and 37. Move to a guaranteed elastic deflection prestressed shape.

The carriage 48 can be separated from the laying body 4, ie from the overhead wire 1 thus reconstructed.

As can be seen here, the reattachment mode of the contact line 7 of the overhead line 1 is such that the laying body 4 is hooked on the dome of the tunnel by means of individual support elements and after their joining is carried out the initial laying of the overhead line Can also be used for

In the modification, when only one contact line 7 is replaced, as shown in the right side of FIG. 9, the other side of the flat surface 3 is prevented so that the side rolling wheels 71 do not act on the corresponding side wings 19. The sleeve 79 located at the rest of its position and, as shown on the left side of FIG. 9, temporarily replaces the contact line 7 and the plane 3 to be replaced in order to separate the corresponding beaks 32 and 37 from each other. The movable base 48 can be used in the manner described above by acting on the co-located sleeve 79 as previously described. A person skilled in the art can easily understand the operation mode of the moving table 48 on the laying body (s) 4 in this variation, and will not be described in further detail.

While the embodiment of the invention described above is presently recommended, it will be understood by those skilled in the art that this embodiment is merely a non-limiting example, which is outside the scope of the invention. Many variants can be devised for it without doing.

─────────────────────────────────────────────────── ─── Continued front page    (81) Designated countries EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, I T, LU, MC, NL, PT, SE, TR), CN, J P, KR

Claims (10)

[Claims] 1. An electrically conductive, substantially constant cross-section integrated with one another 3.
A rigid flat base (5) having two longitudinal components (4, 7), namely a symmetric intermediate longitudinal plane (3) and perpendicular to said plane (3).
13) and one flat central wing (18) arranged along said plane (3),
Arranged substantially parallel to said plane (3), respectively on each side thereof,
An elastically flexible laying (4) on a support consisting of three flat wings (19) and three wings (18, 19) arranged on the same side of the base (13). ), Three wings (18, 19) are respectively joined to the base (13), and on the opposite side of the latter, the beak (32) along the direction whose cross section is perpendicular to the plane (3). , 37) facing each other to the adjacent wings (18, 19) so that they face each other.
A laying body (4) having respective free ends (20, 21) in the form of (32, 37)
), And two contact lines (7), which are symmetrical to each other with respect to said plane (3) and each with a moving body provided with two grooves (11), corresponding free ends ( 20 and 21) between it and another groove on the free end (20) of the central wing (18) so as to add an integrated tightening effect with the laying body (4) to each catenary (7). (11) each said contact line (7) which is itself supported towards said plane (3)
In their respective grooves towards the plane (3) with their free ends (21) supported and under elastic flexure prestress conditions of the two flank wings (19).
) In its respective groove in a direction away from said free end (20, 21)
In a laying-and-removing carriage of a longitudinal feeder line of a mobile body, of the type consisting of two contact wires (7), one of which fits, respectively, with a symmetrical intermediate longitudinal plane (3) A rigid frame (49), removable between the frame (49) and the laying body (4) in a direction in which said symmetrical intermediate longitudinal plane (3) coincides with this latter symmetrical intermediate longitudinal plane (3). Mechanical coupling means (57), on the one hand the means (57) ensuring the support of the frame (49) by the laying body (4) and, on the other hand, the guiding of the frame (49) in longitudinal translation relative to the latter. Carried on a frame (49), arranged respectively on both sides of said longitudinal plane (3),
They are mutually symmetrical with respect to the latter at their respective predetermined positions stationary with respect to the frame (49) and are respectively relative to the former in at least a direction away from their respective stationary positions with respect to said longitudinal plane (3). Two side fixing devices (71) on the side of the beak part (37) that can engage with the free ends (21) of the corresponding side wings (19), respectively; Perpendicular to the longitudinal plane (3), in a direction away from it, and when returning to its respective rest position, said longitudinal plane (3).
Side fixing device (71) with respect to the frame (49) in a direction approaching it perpendicularly to
Means (79, 94) for forcibly moving in a controlled manner, carried on a frame (49) and arranged symmetrically with respect to said longitudinal plane (3),
The contact line (7) with the propulsion device (128), and in a controlled manner, against the frame (49) in both directions transverse to the longitudinal plane (3) (axis 119). Means (120,
123), arranged along said longitudinal plane (3), on both sides thereof at least in a direction spaced from said longitudinal plane (3), between the corresponding beaks (32) central wings. (1
8) comprises a central fixing device (70) carried by a frame (49), which can come into engagement with the free end (20) of the propulsion device (128) parallel to said longitudinal plane (3) At the base (1) of the laying body (4)
3) It can serve as a support for the two contact lines (7) in a direction away from it: a laying and dismounting platform. 2. The laying removal carriage according to claim 1, wherein the free ends (21) of the respective side wings (19) of the laying body (4) are directed towards the base (13). Laying body (39) having respective flat longitudinal faces (39) arranged substantially cantilevered to the respective side wings (19) in the direction of separation with respect to (3), substantially perpendicular to said plane (3). In the case of 4), the laying and dismounting platform is characterized in that the mechanical coupling means (57) are rolling means (57) on one and the other of said flat surfaces (39). 3. The installation / removal base according to claim 1, wherein the side fixing device (71) arranged on one side of the longitudinal plane (3) is moved. , 94) is independent of the means (79, 94) for moving the lateral fixing device (71) arranged on the other side of the longitudinal plane (3). Stand. 4. The laying removal carriage according to claim 1, wherein the free end (20) of the central wing (18) is directed towards the base (13) and the plane (3) )
Along with a longitudinal groove (31) located between the corresponding beaks (32), the free ends (21) of the respective flank wings (19) being directed towards the base, said plane In the case of a laying body (4) having respective longitudinal grooves (41) offset with respect to the beak part (37) respectively corresponding to the direction away from (3): a central fixing device (70) ) Are arranged along the longitudinal plane (3) and the rotation axis (
66) Said longitudinal plane (3) fixed to the frame (49) against the translation
) Is attached to the frame (49) about an axis (66) perpendicular to the central wing (18).
) With at least one central rolling wheel (70) whose peripheral edge can fit in said groove (31), and side fixing devices (71) arranged respectively on both sides of said longitudinal plane (3). ,
In each rest position, symmetrical to one another with respect to the latter, said longitudinal plane (3
) Is rotationally attached to the frame (49) about the same axis (66) perpendicular to (4), and the peripheral edge can be fitted into the groove (41) of each one of the side wings (19). A pair of side wheels (71) is provided, and means (79, 94) for moving the side surface fixing device (71) are adjustable positioning means (79) for the side wheels (71) along their rotation axes. , 94). 5. The laying / moving stand according to claim 3 or 4, wherein the adjustable positioning means (79, 94) for the side wheels (71) are: 49) slidably mounted, fixed against the frame (49) against their rotation about their axis of rotation (66), without the possibility of translation along the axis of rotation. Respective sliders (94) carrying respective side rolling wheels (71) that rotate about their rotation axes, and-rotatably mounted to the frame (49) about their rotation axes (66). Is
The threads engage the respective sliders (94) and are secured to the frame (49) against translation along their axes of rotation (66) to secure the axes of rotation (66). Laying and dismounting pedestal, characterized in that it comprises a respective screw (79) with an operating means rotating about a frame (49) as a center. 6. The installation / removal platform according to claim 4, wherein the rotary shaft (66) of the central wheel (70) is arranged between the central wheel (70). An installation / removal base for moving the installation / removal table, which is integrated with that of the pair of side wheels (71). 7. The laying removal carriage according to claim 4, wherein: the central fixing device (70) constitutes a plane of symmetry for the propulsion device (128).
49) two of said central wheels (70) symmetrical to each other with respect to a given cross section (50)
A set of two pairs of said pair of lateral fixing devices (71) symmetrical to each other with respect to said cross section (50), and means for moving said lateral fixing device (71). Is a laying / removing stand which is independent of each other and is provided in the two corresponding sets. 8. The installation / removal platform according to claim 4, wherein each groove (31, 41) is a laying body (4) having a V-shaped cross section. At least one central wheel (70) and at least one number of each side wheel (71) of said pair have a V-shape when viewed cut along any plane which tilts its respective axis of rotation (66) The laying / removing platform having the respective convex peripheral edges. 9. Laying and dismounting table according to claim 1, wherein the propulsion device (128) is centered on an axis (124) perpendicular to the longitudinal plane (3). Two peripheral grooves which are rotatably mounted on the frame (49) and receive one of each of the two contact lines (7) and which are mutually symmetrical with respect to said longitudinal plane (3). A roller (128) provided with (132), the propulsion device moving means (120)
, 123) along the transverse direction (axis 119) with respect to the frame (49).
128) A laying and dismounting stand, which is provided with adjustable positioning means for the rotating shaft (124). 10. The laying and dismounting table according to claim 9, wherein the adjustable positioning means (120, 123) of the rotary shaft (124) of the roller comprises: Fixed against 120),
A slider (120) slidably mounted to the frame (49) along said transverse direction (axis 119) without the possibility of any other relative movement, and-a transverse plane of said longitudinal plane (3). A slider (120) is rotatably mounted about an axis (119) and engages a frame (49) by a thread (122) to resist translation along the transverse transverse axis (119). Laying, characterized in that it comprises a screw (123) fixed to (120) and provided with operating means (114) for rotation with respect to the frame (49) about said rotary transverse axis (119). Removal platform.