KR20020086573A - Carriage for mounting and dismounting a power supply line of a mobile element comprising two contact wires and a body for being mounted on a support - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carriage for mounting and detaching a power supply line of a moving element, wherein the mounting body (4) comprising a base (13) and the common connecting side, together with a drive moving element, both connection wires 7 are deflected elastically It has three flanges 81, 19 that hold in pairs through prestressing. Mounting and detaching carriages are provided with respect to the mounting member 4 with the central member 70 engaging the free end 20 of the central flange 18 and with a temporary separation from the central flange and with which the wire 7 is mounted or detached. Together or preferably separately, two side members 71 are engaged with the free end 21 of the side flange 19 and a member supporting the wire 7 towards the mounting body.

Description

CARRIAGE FOR MOUNTING AND DISMOUNTING A POWER SUPPLY LINE OF A MOBILE ELEMENT COMPRISING TWO CONTACT WIRES AND A BODY FOR BEING MOUNTED ON A SUPPORT }

The present invention relates to a longitudinal power supply line mounting and detaching carriage of a moving member having a substantially constant cross section and having three conductive longitudinal elements fixed to each other, that is,

A solid flat base having a longitudinal central plane, perpendicular to the plane, a flat central flange lying along the plane and two elastically flexible flat side flanges, on the same side as the base, each of which side face In which there are three flanges lying approximately parallel to the plane, each of these three flanges being connected to the base, each having its free end on its opposite side, and the ribs connecting each other in pairs in a direction perpendicular to the plane. The mounting body of the support having a cross-sectional shape of the lip pivoted toward the neighboring flange,

-Mutually symmetrical with respect to the plane, each of which presses its free end in a direction away from the plane, self-presses towards the plane, into each groove of each connection wire, towards the plane The clamping effect of having two grooves fixed to any one of the free ends under conditions of elastic deflection prestressing of the two side flanges, by means of the other grooves of the free ends of the flange, between the corresponding free ends It relates to a mounting and a detachable carriage having two wires for connecting with the moving element, so as to apply to each wire.

In the position of a conventional suspended suspension line, this line represents a difficulty or danger for a maintenance vehicle or an electric vehicle, which is designed especially for vehicles that are generally driven on rails in a tunnel, which is larger than the line with a single connection wire. It is possible to cope with the century.

Referring to Fig. 8 of EP 0 593 350, an embodiment is disclosed in which three flanges of the mounting body form a single piece at its base.

In addition, the above-mentioned European patent application relates to such a line, and also with a mounting similar to that described above, except that the connecting flange is laid down, by means of an elastic gripping, without a central flange, to hold the side flanges. Reference is made to the availability of the mounted and detachable carriage disclosed in connection with a line with a single connecting wire lying along the longitudinal central plane of the sieve.

Such carriages are manufactured and marketed by Applicant with reference 552 411,

A solid chassis with a longitudinal central symmetry plane,

Support of the chassis by the mounting body on the one hand and longitudinal translational movement with respect to the mounting body between the chassis and the mounting body in a direction coincident with the longitudinal central symmetry plane of the mounting body; Detachable mechanical connecting means for providing a chassis guide in

A direction held by the chassis, each lying on each side of the longitudinal plane, symmetric with each other with respect to the longitudinal plane at each particular stop position with respect to the chassis, starting at respective stop positions, and spaced apart at least in the longitudinal plane In the longitudinal plane, two side engaging members capable of engaging with the free end 21 of each lip corresponding to the side spaced apart in the longitudinal plane,

Means for forcing the side engagement member in the chassis in a controlled manner, in a direction spaced vertically from the longitudinal plane and upon return to each stop position, in a direction approaching the longitudinal plane perpendicularly; and,

A member for urging a connecting wire held by the chassis and positioned symmetrically with respect to the longitudinal plane,

In a controlled manner, with means for forcing the thrust member in relation to the chassis in one direction and in the transverse direction of the longitudinal plane.

These carriages should be followed by the end-to-end longitudinal contact of the wire, in connection with describing how the above-mentioned European patent application breaks or recovers within the scope of the repair operation, how to make this line to repair it. It is fully sufficient to mount or detach with respect to the arrangement or arrangement of the mutually assembled mountings.

In particular, in the local area which is guided through the releasable mechanical connecting means and follows each other along the mounting body or mounting bodies, such as in the longitudinal translation thereof, the free end of the side flange by its elastic deflection by said side engaging member. Separate mutually and temporarily,

The connecting wire is inserted between these free ends separated in this way by a thrust member at the position where the connecting wire is caught by the free end as soon as the carriage is moved to free the side flange and the side flange is freed;

Or release the connection wires already held by the latter interlocks in order to detach the wires from these free ends in this way and enable the control of these releases by the thrust member.

Conversely, the method of use for mounting or detaching the wire of the type indicated above is not satisfactory, in particular, this is because the two connecting wires can act only for reasons of mutual separation of the free ends of the side flanges. This is because it is rather difficult to control the separation of the free end of the side flange with respect to the free end of the center flange, which needs to be mounted and detached. As a result, the engagement or disengagement of either of the connecting wires with respect to the corresponding side flange and the central flange of the mounting body or each mounting body in a particular area of the line can be very difficult.

1 shows a cross-sectional side view of a power supply line having two connecting wires of the same mounting body when mounted, in a railway tunnel for supplying electricity to an electric vehicle.

2 is a cross-sectional view according to reference plane II-II of FIG. 1 in an operational cross section.

3 is a cross-sectional view according to reference plane III-III of FIG. 1 in a cross section through the transverse plane in the joint plate between two neighboring longitudinal mountings.

4 and 5 illustrate a carriage according to the invention designed for mounting and detaching one or both connecting wires of the lines shown in FIGS. 1-3, wherein the carriage is in the operating position but in a stationary state. And a traction force is not applied to the free end of the side flange in the direction away from the free end of the center flange, and is a cross section that passes through the reference plane IV-IV or V-V of FIG. 6.

FIG. 6 shows a carriage through the longitudinal center plane of the line and the carriage according to the reference plane VI-VI of FIG. 4, ie a longitudinal plane parallel to the common plane.

FIG. 7 is a detail view of the carriage in cross section along the longitudinal reference plane VIII-VIII of FIG. 6.

8 and 9 are the same cross-section as in FIG. 4 where the carriage is in the operating position but shown in a stationary state and traction is applied to the free end or one free end of the two side flanges in a direction away from the free end of the central flange; Shows the carriage.

It is an object of the present invention to overcome these drawbacks, and for this reason, the present invention merely proposes mounting and detaching carriages relating to the carriages mentioned above, and also at least on each side in a direction away from the longitudinal plane. Between a corresponding lip and a central engagement member that is engageable with the free end of the central flange and is made by a chassis disposed along the longitudinal plane, the thrust member being remote from the base of the mounting body parallel to the longitudinal plane. It can act as a support body with respect to two connection wires in the direction.

Those skilled in the art can either remove the latter on an already fixed line, or allow the insertion of the corresponding respective connecting wires or the alignment of the mounting bodies, which are mounted on the mountings, and the release of the connecting wires freed by the respective lip. In the case of an operation in which each thrust member is positioned to push the connecting wire to place the wire between the ribs sufficiently in order to allow the latter to engage the respective respective grooves in order to be sufficiently separated from the mounting body in order to This kind of attachment to the mounting body using mechanical means for connecting to the chassis, to locally separate the lip of the side flange from the corresponding respective lip of the central flange under suitable conditions to free the corresponding respective connecting wire. Center flange chair engaged with center engagement member after carriage of By applying traction, lateral engagement members, in the direction away from the end, to the contiguous region of the free end of the side flange of the mounting body or of the respective mounting body, as this process occurs, another mounting body aligned in the proper position is used to It will therefore be readily understood that this carriage process can be made.

One skilled in the art will also be able to return the flange in such a way that immediately after passage of the carriage, the elasticity of the side flanges is maintained in such a way that the connecting wires thus arranged between the ribs are held in their respective grooves.

Thus, in contrast 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 flange relative to the free end of the central flange and, as a result, corresponds in any area of the line. The engagement and disengagement of the connecting wire from each side flange and the mounting body or the central flange of each mounting body can be constantly and easily permitted.

Means for moving the side engaging members respectively disposed on either side of the symmetrical longitudinal center plane of the chassis are used if carriages according to the techniques of the above-mentioned European patent application are used, except for the control imparted by the features of the invention. In particular in the direction away from the longitudinal plane, ie from the center engagement member, in order to simultaneously separate from the free end of the two side flanges from the free end of the central flange and to permit simultaneous engagement or release of the two connecting wires. Can work at the same time.

However, in this case, when used with respect to two connecting wires and wires, it has been found that the known carriage has a different drawback, which is to detach the single contact wire for replacement purposes, for example leaving the other connecting wire intact. It is natural that this other connection wire is detached during the holding, and therefore, at the same time, a defect is accompanied until the other connection wire and the connection wire replacing the connection wire are remounted.

Now, in the case of two connecting wires and wires, the rigid clamping of the mounting body between the free end of each respective side flange and the free end of the central flange is due to the compressive stress of the elastic deflection of the side flange, It was evident that the member would have little effect on the ability of the mounting body to hold other connection wires.

Starting from this observation, it is a further object of the present invention that each side flange with respect to the free end of the center flange is overcome in order to overcome the other disadvantages when the carriage described in the above-mentioned European patent application is used with respect to two connecting wires and lines. It is to benefit from the possibility given to the carriage according to the invention for controlling the position of the free end of the.

For this reason, according to a preferred embodiment of the carriage according to the invention, the means for moving the side engagement member disposed on one side of the longitudinal plane is for moving the side engagement member disposed on the other side of the longitudinal plane. It is separate from the means.

This independence can be particularly advantageous for detaching only one of the connecting wires of already installed lines, if necessary, for example, if the wire is broken, it can be used to replace the wires, thus continuing the power supply line used over the time required to detach. The replacement wire can then be refitted without disturbing the connection wire left in place, under conditions suitable to permit it. Thus, this design of the carriage can fully benefit from the method of holding the connection wire by the mounting body.

In this respect, the side flanges of the mounting body are elastically flexible enough to allow the stress portion for clamping the connecting wire on the free end of the central flange by their free end, but the latter Because of the transverse dimension in the central longitudinal plane, there may be relatively stiffness, or otherwise the latter to its free end due to the compressive stress of the side flanges, although somewhat elastically flexible as the side flanges by design This central flange is compensated for by the effect of symmetry to the extent that the force of applying the two connecting wires to the at least this while the connecting wire is present does not perform elastic bending. In the case of a temporary member of any of these connecting wires, the central flange will then probably perform such elastic bending until the force applied to the residual connecting wire is balanced with the force applied to the latter by the corresponding side flange. However, this elastic deflection of the center flange corresponds only to a short period which is temporary to the working life of the line according to the invention, and is easy to dimension to the central flange perpendicular to the longitudinal center plane of the symmetry of the mounting such that the deflection is hardly noticeable. .

As shown in the above-mentioned European patent application, each free end of each side flange of the mounting body is generally perpendicular to the face and is protruded from each side flange in a direction that is folded toward the base and away from the plane. Of the carriage according to the invention, as in the case of the carriage described in the above-mentioned European patent application, to facilitate the alignment of such a mounting body or the advancement of the carriage along the mounting body when The installation is advantageously made with a releasable mechanical connection means between the chassis and the mounting body which is a means for rotating both of the plane faces.

Further, the center engaging member, the side engaging member and the interlocking mounting body are preferably designed to be easily compatible with the advancement of the carriage.

Thus, according to a preferred embodiment of the present invention, as also showing the aforementioned European patent application, the free end of the central flange of the mounting body is folded away from the base and positioned between the corresponding ribs along the plane. When the free end of each side flange of such a mounting body has a longitudinal groove and each longitudinal groove is folded away from the base and offset with respect to each corresponding lip in a direction away from the plane, the present invention The equipment for carriage is made according to

A center engaging member is disposed along the longitudinal plane, mounted to be able to rotate about the chassis about an axis perpendicular to the longitudinal plane, and can be engaged about a groove in the central flange and along the axis of rotation At least one central roller fixed relative to the chassis against the translation,

The side engagement members are mutually symmetrical with respect to the latter in their respective resting positions and are respectively disposed on each side of the longitudinal plane, and can engage around each of the grooves of the side flanges and are perpendicular to the longitudinal plane At least one side roller mounted to rotate about the chassis about the same axis,

Means for displacing the side engagement member, comprising adjustable positioning means of the side rollers along the axis of rotation thereof.

Thus, in order to ensure the above mentioned independence between the means for moving the side engagement members respectively disposed on each side of the symmetrical longitudinal center plane of the carriage,

-Mounted so as to slide about the chassis along the axis of rotation, supporting each side roller so that it can rotate about the axis of rotation without the possibility of translation along the latter and the chassis against rotation about the axis of rotation; Each slider fixed relative to, and

Mounted so as to be able to rotate about the chassis about the axis of rotation, fixed against the chassis against the translation along the axis of rotation, each slider being engaged by a thread, about the axis of rotation; An adjustable arrangement of the side rollers is provided with each screw secured to the movement means so as to be able to rotate about the chassis.

Preferably, in order to allow the center roller and the side rollers to operate under the most advantageous mechanical conditions, the axis of rotation of the center roller coincides with the pair of side rollers between them.

For this reason, a preferred embodiment of the mounting carrier according to the invention:

The central engagement member has two examples of said central roller constituting a plane symmetrical with respect to a particular transverse plane of the chassis and symmetrical with the thrust member,

The side engagement member has two examples of the pair symmetrical with respect to the transverse plane,

The means for moving the side engagement members provide two mutually independent and respective corresponding illustrations, in addition, the orientation of the carriage which is stable relative to the mounting body is preferred.

Of course, the engagement of the center roller or each center roller in the groove of the free end of the center flange and the engagement of each center roller in the groove of the free end of the corresponding respective side flange is dependent on the compressive stress state arranged to hold the connecting wire. In comparison, it will be sufficient to transfer a force suitable for increasing their elastic bending stress to the side flanges in the direction of separation from the central flange at their free ends.

For this reason, as shown in the above-mentioned European patent application, when each groove has a V-shaped cross section, at least one central roller and at least one pair of side roller pairs pass through a plane inclined each axis of rotation. When viewed in cross section, it has a convex outer circumference with a V-shape.

The thrust member is preferably designed to facilitate the aforementioned advancement of the carriage, as is the mechanical connection means and the mounting body between the center engagement member and the side engagement member and the chassis of the carriage according to the invention.

To this end, in accordance with a preferred embodiment of the present invention, a thrust member is mounted to be rotatable about a chassis about an axis perpendicular to the longitudinal plane, and the longitudinal plane for receiving each one of the two connecting wires. Bearings having two outer circumferential grooves which are mutually symmetrical with respect to, the means for moving the thrust member with adjustable positioning means of the axis of rotation of the bearing in the transverse direction relative to the chassis.

Thus, advantageously the adjustable positioning means of the rotating shaft of the bearing,

A slider mounted so as to slide with respect to the chassis along the transverse direction without any possibility of relative movement, the rotation axis of the bearing being fixed;

Mounted to the longitudinal plane so as to rotate on a slider about a transverse axis, fixed relative to the slider against translation along the transverse axis, engaged with the chassis by a thread, with respect to the chassis about the transverse axis of rotation; It is provided with a screw fixed to the movement means to rotate.

Other features and advantages of the carriage according to the invention will become apparent from the following description with reference to the accompanying drawings, with respect to non-limiting embodiments.

For simplicity of explanation, it will be appreciated that the following lines are considered straight and horizontal, and can be bent and / or inclined, and those skilled in the art will readily adopt the description made in this case, and the center of the line It will be appreciated that the curved line is intended to replace the concept of the longitudinal plane, in particular in the case of the mount, a cylindrical surface partitioned by a line or a central symmetry line for each cross section of the mount. The central fiber of the line or mounting body will be considered on a longitudinal basis.

In the illustrated embodiment corresponding to the most common case, the power supply lines 1 in the longitudinal direction, in this case horizontal direction 2 and in the longitudinal symmetry plane, in this case in the vertical direction 3, are in longitudinal alignment with respect to one another. A plurality of longitudinal mounts 4 are positioned, each symmetrical with respect to the plane 3, which are mounted together by means of a seam plate 5, the ends being mutually assembled in a secure manner. This is described in detail below. For example, each body 4, although not a reference, has a longitudinal dimension of 12 meters and two longitudinally adjacent bodies 4 maintain a longitudinal clearance 6 of tens of millimeters between them, but these values are not limited. And other values may be selected without departing from the scope of the present invention.

In a method known up to now, the body 4 is hung from the roof of a tunnel (not shown) via a separate support element, in fact an insulating material (not shown) which is spaced apart from one another in the longitudinal direction by a distance.

The line 1 also has two conductive longitudinal wires 7 for supplying electricity in connection with a collector bow of a pantograph held by an electric vehicle. These wires 7 each lie on each side of the plane 3 and are symmetrical with respect to the plane, and under each of the clearances 6 in each clearance 6 over most of the longitudinal dimensions. Extend from one point to another. Each wire 7 has a longitudinal dimension of several hundred meters and can extend below the longitudinal alignment of the number of bodies 4 required for the length of the tunnel and continues out of the tunnel in the form of a conventional suspended suspension line. As such, two bodies 4 are shown in FIG. 1, but the number of bodies 4 placed at the ends is generally two or more. In some specific cases, a single body 4 of appropriate longitudinal dimension may also be sufficient.

As shown in the preferred method, each wire 7 is a circular hollow of two known V-shaped notches that are symmetrical with respect to the known standard shape of the suspension line in cross section, ie with respect to the longitudinal center plane 8 of the wire 7. It has a shape, the plane 8 is parallel to the plane 3, the plane 8 perpendicular to the longitudinal line 10 passing through the center of the circle defining each cross section of each wire (7) It lies just above the other longitudinal plane 9 to cut.

As such, each wire 7 as a whole has a cylindrical shape, the shape being axially symmetric about line 10 and corresponding to the notches described above, two symmetrical with respect to plane 8 and directly above plane 9. Two longitudinal grooves 11.

The cross-sections of the two wires 7 are uniformly and equally spaced between two longitudinally adjacent end faces 12 between the two longitudinally adjacent mounting bodies 4 over the entire longitudinal dimension of these wires 7. This applies to the cross section of each body 4 over the entire longitudinal dimension to be measured.

Each mounting body 4 now described consists of a single part, for example by extrusion, and preferably can be made of aluminum or an aluminum alloy with respect to the seam plate 5 in a manner known so far, In another known method, the wire 7 is preferably made of copper or a copper alloy. However, it will of course be understood that these materials are indicated only as non-limiting examples.

Towards the top, given the direction of each mounting body 4, when suspended under the roof of the tunnel to suspend the wire 7, the mounting body 4 is perpendicular to the plane 3 and symmetrical in this respect. And a flat base 13. More specifically, this base 13 is partitioned upwards and downwards, respectively, by longitudinal symmetrical longitudinal plane surfaces 14, 15 perpendicular to the plane 3 and spaced apart in the plane 3 on each side. It is partitioned by the longitudinal edge surfaces 16 which are parallel to the plane 3 and are mutually symmetrical while being partitioned in the direction. In a method known up to now, the mounting body 4 is supported by an upper surface 14, a face 16 and a clip in engagement with the limit area 17 of the lower face 15 immediately adjacent to each of the edge face 16. Is suspended by the base 13.

The mounting body 4 protruding from the lower surface 15 and fixed to the base 13 by being made of a base and a single component is mutually symmetrical with respect to the central flange 18 placed on the plane 3 and the plane 3. At the same time with three longitudinal flanges with two side flanges 19 each lying on each side of a substantially parallel plane 3. On opposite sides, ie downwards, in each connection with the base 13, the central flange 18 and the two side flanges 19 have free ends 20, 21, respectively. Like the connection of each flange 18, 19 and the base 13, the free ends 20, 21, at least the side flanges 19 of each flange 18, 19 are firm, but a suitable central flange 18 It may be elastically bent between the base 13 and the connection and its free end 20.

For this reason, each side flange 19 is partitioned by respective longitudinal faces 22, 23 that are approximately planar and approximately parallel to the plane 3, in a direction spaced apart from the plane toward the plane 3. The faces 22, 23 of each flange 19 are connected to the bottom face 15 of the base 13 by respective cutting faces 24, 25 between the boundary regions 17 of the bottom face 15, the flanges To allow the aforementioned elastic deflection of (19), they approach each other with respect to their free ends 21, in particular in the direction spaced apart from the plane 3.

Equally, in the direction in which the central flange 18 is spaced apart from the plane, the two longitudinal planes 26 are respectively defined on the sides of the plane 3, the longitudinal plane being defined by the respective cutting planes 27. It is connected to the bottom surface 15 of 13 and approaches each other towards the bottom. This also results in a particular elastic flexibility of the central flange 18 perpendicular to the plane 3, but the central flange 18 is in normal operating conditions of the mounting body 4, ie of the two wires 7 below the mounting body. In the presence, because it behaves completely solid to the base and is symmetrical, one skilled in the art will readily understand by reading the rest of the description.

Towards the bottom, at the free end 20 of the central flange 18, each face 26 is connected to a longitudinal plane 28 which moves downward in the plane 3. Towards the floor, in the direction spaced from the plane 3, each of these planes 28 is connected to the longitudinal plane 29 by a cut plane (no reference number), and the plane 28 and the plane 29 Approach the plane 3 towards the floor at the connection of. The cross sections of the planes 28, 29 represent the ribs or buckles 32 pivoted in the direction away from the plane 3 and have standard shapes and dimensions fitted to the respective grooves 11 of each wire 7.

Towards the floor, ie farthest from the base 13, the plane 29 is connected to the longitudinal plane 30 of the free end 20 of the flange 18, with the two planes 30 converging towards each other upwards. And the plane 30 rises in connection with the plane 29 so as to be connected to each other in parallel with the plane 3, so that the longitudinal grooves 31 are opened toward the floor by partitioning between the two ribs 32, It has a V-shaped cross section symmetric with respect to the plane 3.

The plane 22 itself of each side flange 19 is connected at each free end 21 to the longitudinal plane 33 towards the bottom and the plane 33 is in relation to the plane 3 so as to approach towards the floor. It is formed at an angle.

This plane 33 itself is connected to the bottom to a longitudinal plane 34 proximate towards the bottom which is inclined with respect to the plane 3 and is located on the same side of the plane 3 by the cutting plane towards the bottom. It is opposite to the plane 28 located on the same side of the plane 3 in order to connect itself to the longitudinal plane 35 which is spaced apart from the plane 3 which is inclined in the opposite direction of 29. Towards the floor, the plane 35 is spaced apart from the plane 3 which is inclined in the opposite direction of the plane 30 lying on the same side at a distance greater than that spaced from the plane 23 of the corresponding side flange 19. It is connected to the longitudinal plane 36 which rises in the direction.

The planes 34, 35 are lip or buckle 37 at each free end 21 of the flange 19 which is directed directly in the direction perpendicular to each lip 32 in the direction perpendicular to the plane 3. ) And has a standard shape and dimensions fitted to the groove 11 of the wire 7, and the other groove 11 at the mutual assembly position of the wire 7 and the mounting body 3 shown in FIGS. 2 and 3. ) Fits into this lip 32. In this position, the two ribs 32 and 37 are symmetrical with respect to the plane 8 of the wire 7 and remain between the ribs and lie almost completely over the plane 9 and corresponding side flanges 19. Presses the lip 37 against the plane 3, against the wire 7, towards the plane 3 with respect to the lip 32 lying on the same side of the plane 3 with the lip 37. By pressing, it is placed in the elastic deflection prestressing in the direction away from the plane 3. This resilient deflection prestressing is performed at the ribs 32 and 37 by the mutual interaction of the grooves 11 of the wires 7 perpendicular to the plane 8, before placing the wires 7 in place in the manufacture of the mounting body 3. By giving a mutual spacing less than a preset value for the spacing, it can be predetermined with the appropriate dimensions of each side flange 19, which is in accordance with the preset clamping effect of each wire 7 between the two corresponding lips 32, 37. , As a result of securing each wire 7 to the mounting body 4 or, more particularly, to each mounting body 4 located in parallel to one another in the longitudinal direction, each mounting body 4 over the entire longitudinal dimension. Intimate connection to the power supply. In the methods known so far, the energization at this level is preferably improved by interposing a connecting lubricant between each lip 320 (37) and the corresponding respective groove 11.

It will be noted that this clamping effect of securing each connecting wire 7 to the mounting body 4 or to each mounting body 4 and to the elastic deflection prestressing of the side flange 19 due to the mutual energizing connection.

Naturally, by symmetry, the effect of deflection prestressing of the side flanges 19 in the presence of the two wires 7 does not lead to any deflection of the central flange 18, through which the two side flanges ( This is because the forces received by the free end 20 of the flange 18 cancel each other at the free end 21 of 19. If one connecting wire 7 is temporarily absent, the flange 18 may be elastically bent under the effect of thrust received through the remaining wire 7 of the corresponding side flange 19, but the remaining connecting wire ( In order to prevent the risk of temporary disconnection, the two wires under each mounting body 4 are retained sufficiently between the center flange 18 and the free end 20 (37) of the corresponding side flange 19. In order to facilitate continuous mounting of the (7) and on the other hand to maintain intimate integration with each body (4), if another wire (7) to be detached is needed, using the power supply line (1) with a single wire (7) It is possible.

In the direction away from plane 3, each plane 36 is connected to a longitudinal plane 38 which is approximately parallel to plane 3 and further apart than plane 23 of the corresponding side flange 19. The plane 38 is connected to the plane 23 by a longitudinal plane 39 which is approximately perpendicular to the plane 3 so as to pivot upward in this plane 3 and to project from the side flange 19 in the spacing direction. Is located. In the area closest to plane 38, plane 36, plane 38, a plane 39 forming at the free end of the corresponding side flange 19, a solid protruding from plane 23 of the side flange 19 Covering the upper surface 14, the edge surface 16 of the base 13, in a direction spaced apart from the jaw 40, the plane 3, and fastening to the jaw 40, the surface 23 of the side flange 19. ), A detachable insulation cover (not shown) that leaves half of each connecting wire 7 located below the floor and plane 9, leaving free space towards the sideways, between two successive longitudinal insulations to hang from the roof of the tunnel. In addition, it is possible to fasten to the mounting body 4. In the region of each plane 36 closest to the corresponding plane 38, in the corresponding jaw 40, it is preferable to hollow out the longitudinal grooves 41 that open toward the bottom, and have a V-shaped cross section, In plane 3, symmetrical with respect to each plane 42 approximately parallel to plane 3, grooves 41 are formed in jaw 40, and in offset positions with respect to corresponding respective ribs 37. In the spacing direction, it is preferred to be used elastically in the jaw 40 to reinforce the fixing of the cover.

Naturally, the joint plate, which assembles the ends of the two longitudinally adjacent bodies 4, is not disadvantageous for fixing the wires 7 to the mounting body 4 by the effect of the elasticity of the side flanges 19, The seam plate is located on the same side of the plane 3 and is fixed to each of the side flanges 19 and adjacent to each side flange 19 of the adjacent mounting body 4 lying on the same side of the plane 3. It is held by each seam plate 5 traversing the gap 6 between the side flanges of 4).

For this reason, according to the preferred embodiment, as shown by the considerations of FIGS. 1 and 3, in the region located longitudinally adjacent to each of the end faces 12 of the mounting body 4, the two side flanges 19 are perforated. In this case along the four mutually parallel axes 43, in pairs at the same transverse height at the same longitudinal height, approximately perpendicular to the plane 3, with each hole 44 for clarity It penetrates from side to side through this to allow a coaxial passage of each bolt 45 shown in FIG.

Each seam plate 5 has a longitudinal bar shape that is attached to the plane 22 of the two side flanges 19 interconnected between the side flanges 19 and the flanges 18 of the corresponding mounting body 4. In the tab hole 46 opposed to each hole 44 coaxially with each of the bolts 45, pressed against these planes 22 by screwing together, and the head of the bolt 45 It is preferred to have a spring washer 47 held in the plane 23 of the corresponding side flange 19.

By way of non-limiting embodiment, each seam plate 5 has a longitudinal dimension of about 40 cm and the holes 43 closest to the corresponding plane 12 of each body 4 are at a distance of about 5 cm. Holes 44 spaced longitudinally with respect to this plane 12 and further spaced from this plane 12 are spaced longitudinally with a distance of about 15 cm. However, these figures are given by way of example and not by way of limitation, other values may be selected without departing from the scope of the present invention.

Also, in order not to contact the central flange 18, the seam plate 5 is perpendicular to the plane 3 smaller than the separation of each plane 22 in the corresponding plane 26 perpendicular to the plane 3. Having a thickness, the bolt shank 45 is sized so as not to contact the center flange 18.

However, since the seam plate 5 has a cross section corresponding to at least half of the cross section of each of the mounting bodies 4, in view of the whole, the two seam plates 5 for assembling two longitudinally adjacent mounting bodies 4 are provided. A cross section is provided for the passage of current corresponding to that provided by the mounting body 4.

As such, the assembly formed by the mounting body 4 assembled to each other by the seam plate 5 is not only effective in maintaining the two wires 7 over the entire length, except for the gaps 6, which can be ignored in this respect. In addition, it is possible to ensure the required cross section for the passage of current over the entire longitudinal dimension of the line (1).

Thus, by way of non-limiting embodiment, the cross section of each seam plate 5 is 1600 mm ² , the cross section of each mounting body 4 is 3120 mm ² , and the cross section of each conductor 7 is 107, 120 or 150 mm ^2. Good results are obtained during the trial, of course, other values may be chosen, and these values do not significantly affect the invention.

Furthermore, it may be desirable for the mounting body 4 to be able to prevent the conductive wire 7 from taking a wave configuration due to the deflection of the line 1 between two longitudinally continuous support insulators. For this reason, by setting mutually predetermined intervals of the support insulators, the bends are fixed after the fixing of the wires 7 after suspension through the insulators, during suspension, i.e. before the suspension is suspended from the roof by the insulators and before the wires 7 are mounted. Each mounting body 4 is manufactured so as to have a predetermined curvature which is offset by the effect of the weight of the wire 4 and the wire 7. The bending crystals given to each mounting body 4 during manufacture include the usual capabilities of those skilled in the art, and the design of this type of mounting body 4 is possible to prevent increasing the number of suspension insulators, Typically provides excessive bending between them.

In the most common case, when assembling the line 1, the process begins by fixing the support insulator under the roof, and initially without the connecting wires 7, each mounting body 4 is closed by a seam plate 5. By assembling the adjacent mounting bodies 4 in the direction, the connection wires 7 are subsequently placed in place.

For this reason, it is preferable that the non-limiting example embodiment described with reference to FIGS. 4-9 is used for the carriage 48 which concerns on this invention, and this carriage 48 mounts mutually longitudinally aligned previously. By advancing along the sieve 4 or the mounting bodies 4, the free end 40 of the side flange 19 is separated from the free end 20 of the central flange 18, so that each connecting wire 7 is angled. It can be inserted between a pair of lip 32, 37, retaining this insertion and releasing the free end 40 of the side flange 19, through elasticity, so that each lip 37 is connected to each wire 7. In the continuous longitudinal region of the groove 11 of the center flange 18, forcing each other into the other groove 11 at each lip 32 of the free end 22 of the central flange 18, the carriage 48 being in the longitudinal direction. Proceed to

Given the operating position of the line 1, the carriage 48 is mainly located below the line, and in the mounting body 4 or in the two longitudinally adjacent mountings 4, suitably for interconnection between them. When positioned, it is suspended locally, allowing longitudinal movement through the means, and preferably by rolling, functions by reference to the remaining description of the carriage 48 in the particular operating position shown in FIGS. For convenience, the carriage 48 is suspended below in a single mounting body 4 and the suspension in two consecutive mounting bodies 4 takes place under the same conditions and its progression along the line 1 is without difficulty. It is understood that the passage from one mounting body 4 to the longitudinally adjacent mounting body 4 is understood, and the rest of the description will be readily understood. In addition, for the purposes of this description, unless otherwise stated, also the line 1 is complete, i.e. changing the two connection wires 7 or one of them to correspond to the conditions of the line 1 prior to repair. It is assumed that the two suspension wires 7 are fixed to or aligned with the mounting body 4.

The carriage 48 has a rigid chassis 49, which is located primarily at a position smaller than the line 1, and is consequently assigned a reference number 3 as a result of coinciding with the symmetric longitudinal central plane 3 of the line 1. It has the overall shape of a substantially rectangular parallelepiped that is symmetrical with respect to the longitudinal plane. The chassis 49 also has a transverse symmetry plane 50 which is a concept of longitudinal and transverse relative to the longitudinal direction of the line 1.

More specifically, in the illustrated embodiment, the chassis 49 is a rigid, flat, approximately rectangular, two end plate 51 which is mutually symmetrical with respect to the plane 3 and parallel with respect to the plane 50 and respectively symmetrical. Two longitudinal end spacers formed by a safe assembly of the four spacers, which are rigid, are straight lines perpendicular to the plane 3, interconnect the two end plates 51, and are symmetrical with respect to the plane 50. 52 provides two central spacers 53 in the longitudinal direction that are symmetrical with respect to the plane 50. These spacers 52 and 53 maintain a greater mutual gap between the end plates 51 perpendicular to the plane 3 than the mutual separation perpendicular to the plane 3, and the grooves 11 and the wires. The curvature of the side flanges 19 in the elastic region when (7) is sufficiently spaced at the free end 20 of the central flange 18 perpendicular to the plane 3 to completely release the lips 32, 37. Within the retaining range, these free ends 21 hold the plane 38 of the jaw 40 of the free ends 21 of the side flanges 19. In addition, as described below, the spacers 52 and 53 are located at a height below the connecting wire 7 so that the displacement of the carriage 48 along the line 1 or the removal and remounting of the wire 7 can be achieved. Work is not disturbed.

Towards the top, each end plate 51 has, for example, a straight longitudinal upper edge 153 located at a height corresponding to the middle height of the plane 36 of the free end 21 of the side flange 19. Along this upper edge 153, each end plate 51 holds each longitudinal rod 54 firmly and this rod is symmetrical with respect to the plane 50 and runs along the upper edge 153 so that each end The plate 51 extends from the same plane upwards to a height greater than the plane 39 of the tuck 40 of the free end 21 of the side flange 19, but does not reach the height of the base 13 but is flat ( 38, each along its path, while maintaining a clearance with respect to the plane, in the direction perpendicular to the plane 3, longitudinal movement of the carriage 48 with respect to the line 1, or withdrawal and remounting of the wire 7 Does not interfere with the separation of the free end 21 of the side flange 19 from the free end 20 of the central flange 18 under conditions that allow it.

At a height below the base 13 above the plane 21 of the jaw 40, each rod 54 is placed on each axis 56 perpendicular to the plane 3 with each swivel 55 facing the pivot. Supports two rotary rings (55). Perpendicular to this plane, each swivel 55 has a dimension and, in the side flange 19, each located on the same side as the plane 3, with a sufficient clearance perpendicular to the plane 3, the center flange Allows for the aforementioned separation of the free end 20 of 18 and the free end 21 of the side flange 19. The two rotation rings 55 of the same rod 54 are mutually symmetric with respect to the plane 50, and likewise, each rotation ring 55 of the rod 54 has a different rotation 54 with respect to the plane 3. It is symmetrical with respect to each rotary ring 55, and symmetric about the plane 3 coaxially with this rotation ring.

Each swivel 55 provides a free rotation about each axis 56 and a flange lying on the same side of the plane 3 without any displacement on each rod 54 of each roller 57. (19) is supported toward the bottom of the plane (39) of the jaw (40) of the free end (21). Similar to the swivel ring 55, the free end 21 of this side flange 19 may be sufficiently spaced apart from the free end 20 of the central flange 18 to allow the wire 7 to be detached and refitted. In the side flanges 19, which respectively lie on the same side of this plane, the rollers 57 are dimensioned to fit a gap perpendicular to the plane 3.

Four mutually identical rollers 57 are secured by the chassis 49 to the carriage 48 at the jaws 40 of the two free ends 21 of the side flange 19 and to the plane 39 of the jaws 40. By rolling against, the longitudinal guidance of the carriage 48 with respect to the mounting body 4 is provided.

In a method not shown, each rod 54 has a rod 54 and a roller 57 at each corresponding end plate 51 to allow fastening and disengaging of the carriage 48 to the mounting body 4. At a position corresponding to that operating position described above, it is fixed by means which can be offset. Such means are known in the case of carriages similar to carriage 48, but in more detail the first to mount the carriage sold under reference number 552 020 to Terrassho Essau, 119 Avenue Louise Roche, F. 92231 Gennevilleier. In the embodiment and in the second embodiment of mounting the carriage sold by the applicant at 552 411, it is intended to mount and detach only the connecting wire of a single wire rigid suspension line. It will be appreciated that these means are fully indicated by reference numeral 58 and can be replaced by other means that do not disclose as a result but provide the same functionality.

In addition, each end plate 51 is straight, mutually symmetrical with respect to the plane 50, and two front edges 59 whose adjacencies are located at each end spacer 52, and a lower edge that is longitudinal but convex toward the bottom. A two end longitudinal straight surface 61 having a 60 and connected to one front edge 59 and having a substantially longitudinal direction, but having an inclination downward in connection with each front edge 52, and this straight line; Each of the faces 61 has a straight and longitudinal central longitudinal plane 62 having a longitudinal dimension substantially smaller than each.

At the connecting adjacencies of each corresponding front edge 59 and each plane 61, each end plate 51 is connected so that the carriage is driven along the line 1 by the working train perpendicular to the plane 3 ( Each hole 63 that fastens the shackle is drilled vertically.

The axes 56 of each pair of rollers 57 which symmetrically correspond to the plane 3 lie in the same transverse plane 64, with the two transverse planes 64 thus formed in relation to the plane 50. Each of them symmetric with each other and passing between one end spacer 52 and one central spacer 53 is closest at approximately the same longitudinal distance at these two spacers 52, 53.

The plane of the upper edge 53 and the lower edge 60 of the end plate 51 formed at the intersection of the plane 64 and the longitudinal plane 65 perpendicular to the plane 3 and perpendicular to the plane 3. Along the two axes 66 located at intermediate heights between the intermediate heights of 61, the two end plates 51 have a hole 67 defined by a cylindrical inner circumferential surface 68 which is axisymmetric about the axis 66. Perforated from side to side, the faces 68 of the various holes 67 have the same diameter.

With each pair of holes 67 of the same axis 66, the end plate 51 lies along the plane 3 symmetrically overlapping and centered, with the possibility of relative free rotation about the axis 66. It holds two series rollers 69 together with the roller 70 and is provided with two side rollers 71 parallel to the plane 3 and symmetric to each other with respect to the plane.

The two series 69 of rollers 70, 71 are identical to one another, one of which is described in more detail with reference to FIG. 7, wherein the three rollers 70, 71 of the same series 69 have a shaft 66. It is held by two end plates 51 through the same bearing shaft 72, and extends from one point between the end plates 51 to the other, and passes through each hole 67.

Between the two end plates 51 the bearing shaft 72 is shaped like a cylinder in a standard manner which is axisymmetric with respect to an axis 66 having the same diameter as, for example, the inner peripheral surface 68 of the hole 67. It has a central portion 73 which is delimited in the direction away from the axis 66 by the excitation outer peripheral surface 74. Each side of the plane 3 along the axis 66 has a volume slightly smaller than the volume separating the end plates 51 from each other such that they are perpendicular to the plane 3 in a direction away from the plane 3. ) Is connected to an annular planar shoulder 75 which is axisymmetric with respect to the vertical axis 66. The two shoulders 75 are thus located slightly rearward towards the plane 3 with respect to the longitudinal plates 51 which are symmetrical with respect to the plane 3 and located on the same plane, and rotate in a direction away from the latter.

Bearing shafts firmly tied to the central portion 73 and to either side of each of the central portions 75 along the axis 66 to be positioned to partially protrude from the end plate 51 in a direction away from the plane 3. 72 is limited by an outer peripheral surface 77 in the form of a cylinder which is axisymmetric about an axis 66 with a diameter smaller than that of the plane 74 in a direction away from the axis 66. 77 has distal ends 76 connected to each of the shoulders 75 and to respective inner peripheral surfaces of the holes 67 through which distal ends 76 pass through respective corresponding end plates 51.

For this purpose, the face 77 of each distal end 76 along the axis 66 is connected in the shape of a disc perpendicular to the axis 66 on the distal end 78 in a direction away from the axis 3, and the face The two end faces 78 which are symmetrical with respect to (3) are larger than the overall dimensions of the assembly formed by the two end plates 51 assembled together by the spacers 52 and 53 along the axis 66. Mutually arranged by distance.

The coaxiality of each distal end 76 of the bearing shaft 72 with respect to each corresponding hole 67 is provided through each coaxial sheath 79, and in addition, the bearing shaft 72. Is maintained symmetrically with respect to the plate 3 with respect to the end plate 51.

The lids 79 connected with the same bearing shaft 72 are laid in the same and mutually symmetrical manner with respect to the plate 3.

With respect to the shaft 66, each of which is delimited by two cylindrical inner peripheral surfaces 80, 81 and of the outer peripheral surface 77 of each distal end 76 of the bearing shaft 72 and the bearing shaft Axisymmetric is about axis 66 each having the same diameter as that of outer peripheral surface 74 of center portion 73 of 72.

Through the inner peripheral surfaces 80, 81, each cover 79 is a part of the outer peripheral surface 77 of each distal end 76 and the bearing shaft 72 for relative rotation around the axis 66, respectively. Guiding contact is made as part of the outer peripheral surface 74 of the central portion 73 of the. The two inner peripheral surfaces 80, 81 of each cover 79 are interconnected by annular plate shoulders 62 axially symmetric with respect to a vertical axis 66, the shoulders 62 being It rotates in a flat manner with respect to the plate 3 and the bearings but with respect to the latter respective shoulder 75 in a manner in which the cover 79 rotates about the axis 66 about the bearing shaft 72.

Along the axis 66, in a direction away from the shoulder 82, the inner peripheral surface 80 of each cover 79 connects to each end surface 83 of an axisymmetric annular shape around a vertical axis 66. And the face 83 rotates in a direction away from the face 3. The length separating the face 83 and the shoulder 82 from each other along the shaft 66 is a shoulder connecting the distal end 78 of the corresponding distal end 76 and the distal end 76 to the central portion 73 along the axis. The length 76 is smaller than the length separating each other so that the distal end 76 forms a protrusion away from the plate 3 with respect to the distal end 83 of the corresponding cover 79 along the axis 66.

With respect to the inner periphery 81, the face 81 has a dimension smaller than half of the dimension that separates the shoulders 75 of the bearing shaft 72 along the axis 66 along the axis 66. ) Is connected to another end face 84 of the cover 79 which is axisymmetric about a flat, annular and vertical axis 66 and thus rotates about the plate 3. The faces 84 of the two lids 79 thus rotate relative to each other, are mutually symmetrical with respect to the plate 3 and the space overlapping with the plate 3 in order to leave them along the axis 66. Equally distributed on each side of the.

In a direction away from the shaft 66, each end face 83, 84 of each cover 79 is connected to the respective outer peripheral surfaces 86, 87 of the latter and rotates in a direction away from the shaft 66. do.

Each of the outer peripheral surfaces 86 and 87 has two sites located in close proximity to each other in a manner that will be detailed along the axis 66. In general, however, the portion 87 has a larger dimension than that of the portion 86 perpendicular to the axis 66, and the two portions 86 and 87 are axisymmetric with respect to the axis 66 perpendicular to the portion 66. Interconnected by an annular planar shoulder (89), the shoulder (89) rotates in a direction away from the plate (3) and is biased in one direction in the direction relative to the shoulder (82) of the cover (79). Along the axis 66 the bias is equal to half of the difference between the separate lengths, and along each of the shoulders 89 as well as two shoulders 75 and two end plates of the bearing shaft 72. 51 causes each cover 79 to rotate about the end plate 61 about the end plate 61 and about the bearing shaft 72 about the end plate 51 in a direction away from the axis 3. This ensures the adjustment of the bearing shaft 72 and that each of the corresponding lids 79 is symmetrical about the face 3 of the bearing shaft 72 with respect to the two end plates 51, The lid 79 is symmetrical with respect to the same face 3.

In the first angular portions 90, 91 directly adjacent to the shoulder 89, each of the outer peripheral surfaces 86, 87 has a cylindrical shape that is axially symmetric about the axis 66, and the face 87 portion ( The diameter of 91 is larger than that of face 86 portion 90, which is equal to the diameter of the inner peripheral surface 68 of hole 67 of end plate 51, so that each portion 90 has a shaft 66. It is positioned in contact with the inner outer surface 68 of each hole 67 in a manner to guide relative rotation relative to it. This at the same time ensures the coaxiality of the bearing shaft 72 for each of the two holes 67 having the same axis 66 as the coaxiality of each cover 79. The portion 90 of the outer peripheral surface 68 along the axis 66 has at least the same dimensions as the thickness of the end plate 51 when measured along the axis 66 but along the axis the end face 83 and the lid ( It is much smaller than the dimensions of separating the shoulders 89 of 79 from each other, the latter protruding from the corresponding end plate 51 and with a removable wrench 88 perpendicular to the axis 66 in a direction away from the plate 3. 5, each cover 79 has a square shape that provides for engagement and rotates as desired independently of the end plate 51 and the bearing shaft 72, respectively, without relative movement around the axis 66. It has a second portion 92 of the outer peripheral surface 86.

With respect to the outer peripheral surface 87 of each cover 79, it has a second threaded portion 93 connecting the first portion 91 to the surface 84, and the sleeve 79 around the axis 66. The axis (with respect to the end plate 51 provided on the cover 79 along the axis and slidable about the latter along the axis 66 and corresponding to the cover 79) is provided. 66. Translating movements are made for the cover 79, bearing shaft 72 and end plate 51 of the respective slide portion 94, which are fixed against rotation around it. It has the form of a thread having a diameter larger than that of the portion 91.

For this purpose each slide 94 has the general form of an annular sleeve axially symmetric about the axis 66 with respect to the axis the slide 94 in this order in a direction away from the face 3. It is bounded by an inner periphery 95 that includes two consecutive portions 96 and 97. The part 96 has one of the tapping and threaded sides of the threaded part 93 of the outer peripheral surface 87 of the cover 79, and the slider 94 acts in the same manner as a bolt with a screw. And perpendicular to the plane 3 and have the same dimensions as that of the part 93. The portion 97 has a cylindrical shape that is axisymmetric about an axis 66 having the same diameter as that of the portion 91 of the outer peripheral surface 87 of the cover 79. However, it is perpendicular to the face 3 and at least the body 4 to release the wire 7 from the corresponding lip 32, 37 or to engage the wire 7 between the lip 32, 37. Has a dimension smaller than that of the portion 91 with the same length as is necessary to separate the free end 21 of the side flange 19 from the free end 20 of the central flange 18.

With respect to face 3, the tapped portion 96 of the inner periphery 95 of the slide 94 is planar, rotates towards face 3, about an axis 66 that is annular and vertical. It is connected to the latter end face 98 which is axisymmetric. 4, 5, 7, and 9, in the remaining positions of the slide portion 94 where the slide portion 94 constitutes the position closest to the surface 3, the tab portion 96 is a surface ( 98 is screwed to the threaded portion 93 in a direction away from the shaft 66 where the face 84 of the cover 79 is in the manner of a cavity surface.

In a direction away from the face 3, the slide 94 is also defined by an annular face surface 99 which is axisymmetric with respect to the axis 66 perpendicular to it. The surface 99 rotates in a direction away from the face 3, ie faces towards the end plate 51 located on the same side as the face 3, to release the connecting wire 7 or to place it in a suitable position. The end plate (100) is dimensioned along the same axis 66 as the above-mentioned length in order to move from the free end 20 of the central flange 18 to the free end 21 of the side flange 19. And in the remaining positions mentioned above for 51).

If a rotation suitable for loosening the mutually unscrewing of the parts 93 and 96 is applied to the cover 79, the value of the gap 100 is greater than the dimensions of the parts 93 and 96 along the axis 66. It is small and is the maximum possible movement of the slide 94 with respect to the lid 79, ie with respect to the bearing shaft 72 and the end plate 51. During this movement, the portion 97 of the inner peripheral surface 95 of the slide 94 slides over the portion 91 of the outer peripheral surface 87 of the lid 79 and thus the lid 79, the bearing shaft ( 72 and the hole 67 of the end plate 51 provides stability of the coaxiality of the slide 94.

In the rotation of the cover 79 caused by the wrench 88 engaged with the portion 92 having a square crosscut which causes the translational movement of the slide 94 perpendicular to the face 3, the face 3 With respect to the end plate 51 located on the same side of, it is fixed against rotation about the axis 66 by engaging the nail 101 perpendicular to the face 3 along the axis 102 and having the latter completely. However, it is biased with respect to the axis 66 and protrudes towards the face 3 to a distance from the latter at least equal to the length separating from the distal face 84 of the cover 79, from face to face, i.e., to the end face 98. In the hole 103 passing through the slide portion 94 along the axis 102 from one side to the other side) and (99), it is preferably as close as possible to the latter length. For example, between the corresponding end plate 51 and the flat longitudinal surface 105 perpendicular to the axis 102, the nail 101 has a cylindrical outer peripheral surface 104 that is axisymmetric with respect to the axis 102. , Rotating towards face 3, hole 103 is defined by a cylindrical inner peripheral surface 106 that is axially symmetrical about axis 102 towards axis 102 and that of outer peripheral surface 104. Have the same diameter. Advantageously, as shown from FIG. 6, several mutually identical holes 103 and their axes 102 are located at the same distance from the axis 66, are equally distributed in angle with respect to the latter, and the carriage 48 By engaging the nail 101 in an optional manner in one of the holes 103 so that the remaining position 94 is effectively coplanar with the distal end 84 of the lid 79. It is provided in the slide part 94 in order to ensure that it becomes a position which makes a position.

In a direction away from the shaft 66, the slide 94 is bounded by an outer peripheral surface 107, axisymmetric with respect to the shaft 66, and the shape is wide to allow adjustment to the slide 94. The outer cage of the thrust bearing 108, which is perpendicular to the latter and not shown in detail and not shown in detail, which can be selected from the possibility of the range and which is parallel to the axis 66 and perpendicular to the latter of the inner cage. Has each of the side rollers 71 with the possibility of free rotation about the axis 66 with respect to the slide 94 without another possibility of relative substitution. Mounting of the side roller 71 through the bearing 108 on the outer peripheral surface 107 of the slide 94 for the purpose, the shape of the face 94 and thrust bearing 108 for the purpose Direction is within the general capabilities of those skilled in the art. The thrust bearing 108 must be mounted to the slide 94 to allow the transfer of force from the latter to the side roller 71 in a direction away from the plate 3.

Along the shaft 66, the roller 71 and bearing 108 mounted to the slide portion 94 have a smaller dimension than that of the slide portion 94, and the roller 71 has the slide portion 94. Side rollers located in FIG. 4 with respect to the two side rollers 71 and in the remainder of the figure when the slide portion 94 occupies the remaining position along the axis 66 with respect to 9, the mounting body 4, which is formed on the same side as the plate 3, while the roller 71 is formed to hold the wire 7 between the ribs 32 and 37 as shown in FIG. 9. It is positioned in such a way that it is engaged in the periphery of the groove 41 of the free end 21 of the flange (19).

For this purpose, each side roller 71 has an annular peripheral 109 which is axisymmetric with respect to the axis 66 in a direction away from the axis 66 and the outer edge 109 has a corresponding axis. More specifically in the direction away from the convex-shaped axis 66, when viewed in cross section through any plane, including 66, the V-shape is symmetric about the plane 110 perpendicular to the axis 66. Complementary with that of the cross section of the groove 41. In the above-mentioned remaining positions of the slide portion 94 the shape corresponds at least approximately to that of the groove 41 of the free end 21 of the side flange 19 located on the same side of the plate 3. On the other hand, the flanges 19 hold the wires 7 between their lips 32, 37, faces 110, 42 relative to the central flange 18 and thus occupy at least approximately coincident positions. do.

Naturally, the outer edge 109 of each side roller 71 should have a diameter that fits the function with respect to the shaft 66. Those skilled in the art will appreciate that the diameter separates the outer edge 109 of the side rollers 71 perpendicular to the shafts 66 and 56 located on the same side 64 and the unreferenced edges of the roller 57 superimposed thereon. The distance approximately coincides with the distance separating the longitudinal planes 39 of the same jaws from the bottom of the grooves 41 in the transverse direction parallel to the plate 3.

For the center roller 70, the groove 31 of the free end 20 of the center flange 18 is provided.

For this purpose, it is also in a direction away from the axis 66, the outer edge 111 having a shape, which is axisymmetric with respect to the axis 66, and tapering in a direction away from the latter. The outer edge 111 has a curved shape when viewed in cross section through any surface including the shaft 66. More specifically, the V-shape is complementary to that of the cut surface of the groove 31. The diameter of the outer edge 111 of the central roller 70 is determined by a person skilled in the art, the outer edge 111 is engaged with the groove 31, in cooperation with the latter is the symmetrical central longitudinal surface of the carriage 48 is line 1 The carriage 48 always coincides with the central longitudinal face 3 of the device body 4 whenever the carriage 48 is suspended from the latter by the roller 57 with the face 39 of the two seals 40. .

In order to maintain this relationship between the carriage 48 and the line 1 or between the device body 4 while the carriage 48 rolls along the seal 40, the roller 70 has two coaxial properties between them. It is mounted so as to be able to rotate freely about the axis 66 about the bearing shaft 72 without any possibility of relative and independent substitution of the side rollers 71. For this purpose, the bearing shaft 72 is safely placed in a spacer 85 in an arrangement known to those skilled in the art. The result is an inner cage 112 with thrust bearing 113 in both directions of the shaft, which will not be described in detail. The bearing 113 is placed symmetrically with respect to the overlapping surface 3 and further secures the outer cage 114 by a suitable method which is not known and described by those skilled in the art. An annular inner outer surface 115 axially symmetric with respect to axis 66 and facing axis 66 with respect to the central roller 70 for this purpose.

In addition to positioning the carriage 48 with respect to the device body 4 of the line 1, the central roller 70 has a sliding portion 94, which is coaxial with these, connected to two side rollers 71. 3) serves as a stop, which advantageously inhibits progression beyond the remaining position in the direction of approach.

For this purpose, in the direction away from the latter, the inner peripheral surface 115 of the central roller 70 is connected to an annular longitudinal surface 116 which is axially symmetric with respect to a vertical axis 66. Mutually symmetrical with respect to face 3, perpendicular to the latter, with mutual separation at the same distance as the face 84 of two covers 79 having the same axis 66 with a central roller 70 Two faces 116 are respectively located on one opposing face 98 of each corresponding slide 94. Thus, if a force is applied to the slide 94 in a direction proximate to the axis 3 from which the remaining position has been obtained by the wrench 88, through the corresponding lid 79, the slide 94 is the shaft ( An abutment is brought about by the surface 98 with respect to the surface 116 in a direction approaching 3).

In a direction away from the axis 66, the distal face 116 of the central roller 70 is connected to the latter outer peripheral surface 117, which is cylindrical and, for example, outside of the directly adjacent slide 94. It is axisymmetric about an axis 66 having the same diameter as that of the portion of the peripheral surface 107. The outer edge 111 of the roller 70 is connected to the face 117 by two annular face shoulders 118 which are axisymmetric with respect to the vertical axis 66. The two shoulders 118 which are mutually symmetrical with respect to face 3 are spaced from each other by a length less than separating the face 116 parallel to the axis 66 and rotating in a direction away from the latter.

Because of the independence between the lids 79 relative to the rotation about each axis 66 with respect to the end plate 51, the position of each side roller 71 is independent of the others in a direction away from the face 3 from the remaining positions. Can be adjusted. Any position of the side roller 71 away from the face 3, including the remaining position, forms a stable position, and any means can be provided, and the portion 92 of the outer peripheral surface 86 of the lid 79 Unless deliberately using a wrench 88 with a square cut at), each cover (at the slide 94 corresponding to the surface conditions and pitch of the threading of the portion 93 and In particular, it is possible not to reverse the operation of the screw action of 79).

It is also located along the transverse axis 119 defined by the intersection of faces 3 and 50, ie centered with respect to faces 64 and 51, and the center spacer 53 is spaced. (53) inevitably has a bolt 120 engaged by a coaxial screw 113 and a thread 112 having a square end 124 for actuating by a wrench similar to wrench 88. At a position lower than that of the upper horizontal edge 153 of the end plate 51 over the spacer 53, the screw 123 has an upper end protected by a translation along the axis 119, and the periphery of the axis 119. It has a slide with the shape of a yoke 120 that includes two parallel cheeks with positions of mutual symmetry with respect to the axis 119 with the possibility of relative free rotation. Each of the chimes 121 is directed away from the axis 119 along the same axis 124 perpendicular to the latter. In each straight slot 127, a rigid finger 125, which is engaged by each coaxial end lug 126, is made in each of the end plates 51 along the plate 50, Extends parallel to the axis 119. Thus the engagement of the handle 126 in the slot 127 keeps the two chicks 121 in a position symmetrical with respect to the face 3. Thus around the axis 119 relative to the chassis 49, in particular with the rotation of the yoke 120 and together with the rotation of the yoke 120 while the screw 123 rotates around the axis 119 about the chassis 49. Rotation is suppressed. The rotation results in the movement of the yoke 120 and the shaft 124 along the direction in a direction proximate or away from the axis 124 relative to the spacer 53 and the line 1 of the chassis 49. . Preferably, the pitch of the thread 122 of the screw 123 and the pitch of the bolt 120 cannot be reversed, and under normal use described below, the yoke 120 has no bearing on the chassis 49 of the carriage 48. And the position intentionally given by the rotation of the screw 123 about the axis 119 about the bolt 120 with respect to the line 1.

Bearing 128 mounted to rotate in rotation about axis 124 about one or the other to allow free rotation about axis 124 about yoke 120 without the possibility of other relative substitution. The yoke 120 is located between the two chucks 121. The bearing 128 located centrally with respect to the shaft 66 of the rollers 70 and 71 has an outer peripheral surface 129 which is axisymmetric to the shaft 129 in a direction away from the shaft 124, and The face 129 is larger than the mutual separation of the central longitudinal face 8 of the wire 7 of the line 1 perpendicular to the face 3 in a manner perpendicular to the face 3 and equally distributed on each side thereof. Has dimensions. However, it may be smaller than the mutual separation of the grooves 41 perpendicular to the surface 3.

The face 129 has two distal ends 130 with respect to the axis 126 which are mutually symmetrical with respect to the face 3, and the central part 131 has a face 3 symmetrically with respect to the latter with respect to the axis 126. ), The three portions 130, 131 are cylindrical and axisymmetric about an axis 124 having the same diameter. Each of the distal ends 130 is each intermediate region having the shape of an annular groove 132 which is coincident with each face 8 and is symmetrical about the plane parallel to face 3 and axially symmetric about axis 124. It is connected to the central portion (131). It is also indicated by the numeric reference 8. Like the face 8, the intermediate portions 132 are symmetrical with respect to the face 3.

More specifically, the grooves 132 each have a smaller diameter than that of the two prustoconical flanks 133 and portions 130 and 131 which are axisymmetric with respect to the axis 124. It has a cylindrical bottom 134 which is axisymmetric about 134. The two flanks 133 are symmetrical with respect to each face 8 above and each bottom 134 is symmetrically superimposed.

The two flanks 133 and the bottom 134 of each groove 132 are positioned and dimensioned in a manner that is readily determined by one skilled in the art. 4, 5, 8 and 9, when the carriage 48 is secured to the mounting body 4 of the line 1, the level of the yoke 120 relative to the spacer 53 of the chassis 49 By mounting the bearing 128, which is located on its own face 3, located on its respective top generatrix, at the point on the two flanks 133 and at the bottom 134 of each groove, 3. For each wire 7 held by two respective lips 32, 37 of), along the line 1 or without opposing the longitudinal rolling of the carriage 48 of the mounting body 4. It is possible to bring it to the position pressed by the point of no connection with the latter of the flange 121 of the yoke 120.

However, by adjusting the position of the bearing 128 along the axis 119 with respect to the spacer 53 of the chassis 49, the spacer 53 is adjusted by the appropriate dimensions of the yoke 120, the screw 122 and the bearing. It is also possible to select a bearing 128 that is close enough to. The upper generatrix of the bottom 134 of the flank 133 and the bottom 134 of each groove of the bearing 128 is directed downward and at least from a length equal to the respective radius of the wire 7, which is not readily shown to those skilled in the art. Respectively removed from the corresponding wire 7.

Naturally, the mounting of the bearing 128 described above is merely an exemplary embodiment, and the different method is the shaft 119 which is indispensably possessed by the sliding path and the chassis 49 constituted by the slot 127 in the illustrated embodiment. It may be specially selected to guide the yoke 120 carrying in the manner of the slide part with respect to any form of slip road arranged parallel to it.

Under the above conditions, the carriage 48 which performs innovation of the line 1 by changing the connecting wire 7 without detaching the line 1 on the front side as follows is more particularly mounted from the insulator it carries. Sieve 4 can be used.

Initially, line 1 is in the state described with reference to FIGS. That is, the mounting body 3 is formed by two ribs 32, 37 by elastic deflection prestressing of the side flange 19 in a direction away from their free end 2 relative to the free end of the central flange 8. It holds two connection wires 7. The line 1 and the mounting structure 3 in this state are shown in FIGS. 4 and 5.

The initial actuation is carried out by the side rollers 71 of each train 69 at each remaining position with respect to a predetermined longitudinal direction of the carriage 48 along the line 1, just below the cut wire 7. Of the carriage 48 to the line 1 so that the central roller 70 of each of the grooves 41 and 31 is engaged, respectively, and the roller 57 is formed at the free end of the side flange 19. 21 is based on the face 39 of the jaw 41.

For this purpose, as close as possible to the beginning of the cover 79 corresponding to the two side rollers 71 of each clearance, the bearing 128 is as far as possible towards the spacer 53 of the chassis 49. It comes down a lot and the scheme is not shown but can be easily understood by those skilled in the art.

The central roller 70 ensures that the central longitudinal symmetry plane of the chassis 49 coincides with that of the line 1, and the two planes having the same numerical reference 3 and the center plane of each groove 132 are each plane ( 8) and the central plane of each side roller 71 of each train 69 coincides with the central plane 42 of each groove 41.

Given an initial position, the bearing 128 is separated from the wire 7 and faces the bottom and is preferably made larger than the radius by a distance at least coincident with the radius of the wire 7.

Thus, two side rollers of the same set 61 with the rotation of the two lids 79 in a suitable direction about each axis 66 with respect to the chassis 49 simultaneously or alternatively by means of a wrench 88. The 71 is gradually separated from each central roller 70 and thus given the peripheral engagement of the rollers 70 and 71 in the grooves 31 and 41, thus the free end of each side flange 19 21 is gradually separated and bent for symmetry until both wires 7 take the side flange 19 into a predetermined structure of maximum elastic deflection free from the lip 32, 37 as shown in FIG. Not symmetrical with respect to face 3 by their elastic deflection from the free end 20 of the central flange 20. The rotation of the cover 79 is stopped, on the one hand, the adhesive effect that can occur in the presence of the connecting lubricant and on the other hand, the wire, which is still held by the mounting body 4, which generally keeps the straight shape. It is sufficient to apply some friction downward against the wire 7 to overcome the tendency for (7). Due to the position occupied by the bearing 128, the bending of the wire 7 is at least partially sufficient to completely disengage it from the mounting body 4 directly behind the carriage 48, at least for the above described direction of travel of the carriage 48. It is also possible to lower it.

Next, the longitudinally confined portion of the continuously continuous mounting body or of the side flange 19 of the mounting body 4 is carried in the direction with respect to the desired overall longitudinal dimension of the line 1 in order to obtain the maximum elastic deflection structure. It is gradually replaced by friction against 48, making it possible to release the connecting wire 7, and also to release the corresponding longitudinally localized portions continuously.

Naturally, the mounting bodies 4 tend to gradually return to the rest of the structure behind the carriage 48 with respect to their direction of travel. However, this tendency is suppressed, resulting in the protection of the wires 7 by maintaining the application of the latter again, for example, than that of a sufficient lower frictional mounting body behind the carriage 48 with respect to their direction of travel. Keep it low.

Thus, the carriage 48 travels the full longitudinal dimension required to replace the wire until another cut made in the wire 7 gradually frees the wire 7.

At the end of the run, each mounting body 4 of the part that traveled the line 1 is completely wireless and the carriage 48 is in the direction of travel mentioned above with respect to the initial position for the part in question. Mounting replacing the side flanges 19 of the mounting body 4 in their construction of maximum elastic deflection at the upper end of the portion of the line 1 in the above-mentioned advancing direction, for example in the direction opposite to It is returned by rolling on the sieve 4, the mounting bodies 4.

If necessary, it is possible to brush the lips 32 and 37 and to treat the fresh lubricant.

Between each groove 132 of the bearing 128 and the corresponding respective space, it is possible to insert the distal longitudinal portion of each wire 7 between two ribs 32, 37, and the groove ( The central longitudinal symmetry plane of what is made to match that of 132 raises the bearing 128 and, with the screw 122, with respect to the mounting body 4 until it again occupies the position shown in FIGS. 5 and 6. At the distal end, bring the distal end 11 of the two wires 7 between the corresponding ribs 32, 37 until the face 9 of the two wires 7 has reached the final level. It is possible to do

After placing the two new wires 7 in the longitudinal direction with respect to the wires 7 which are suitably immediately adjacent in the upward direction with respect to the advancing direction of the carriage 48 mentioned above, they are placed on each other. In order to connect, retain the side rollers 71 in their operating position and at the free end 2 of the side flange 19 a friction suitable for bringing the side flange 19 to their maximum deflection structure, The bearing 128 allows the wires 7 to hold the bearings 128 in a position to hold the wires 7 in a position such that their face 9 occupies a final corresponding level with respect to the mounting body 4. In the translational motion mentioned above with respect to the mounting body 4 or the mounting bodies 4 a new translational movement of the carriage 48 is generated by friction in this direction.

When the carriage proceeds along the mounting body or mountings, the side rollers 71 are arranged in the longitudinal direction of the side flanges 19 of the mounting body or mounting bodies that follow each other in a continuous travel direction in a structure of maximum elastic deflection. Bring. The bearing 128 mounts the groove 7 of the localized portion of the new wire 7 which follows each other in the direction by elastic bending of the wire 7 just in front of the carriage 48 with respect to the direction of travel. It is located between the lip 32 and 37 of (4). At the rear of the carriage 48 in this direction, the portion of the mounting body 4 in which the carriage 48 leaves continuously tends to return to the rest of the configuration, but the ribs 32 and 37 are grooved in the wire 7. By applying to (11) it is retained in their intermediate configuration of deflection prepressing. This fact allows the progressive reconstruction of the line 1 and the latter to be maintained under the conditions described in FIGS.

If the carriage 48 is not described, but runs immediately close to the other end of the portion of line 1 without the wire 7 in a manner that will be readily understood by one skilled in the art, the lid 79 will return to its remaining position. Is triggered to bring them. In other words, by moving the bearings 128 in position, the side rollers 71 of each set 69 move close to each other. This also results in the side flanges of the mounting body 4 in the configuration of the elastic deflection pre-pressing which holds the wire 7 between the lips 32 and 37 at the distal end.

The carriage 48 can be separated from the mounting body 4. In other words, it is reconstructed from the line 1 in the above manner.

The method of refitting the wires 7 of the line 1 involves the initial mounting of the line after the mounting body 4 is fixed to the roof of the tunnel by the respective supporting components and after fishplating is performed. It can also be used.

As a variant, when the deformation of the single connection wire 7 is involved, the carriage 48 temporarily moves the right lip of Fig. 9 to separate the corresponding ribs 32 and 37 from each other when the wire 7 changes. As shown in FIG. 9 by disassembling the cover 79 located on the other side of the face 3 in their stop position, so that the side rollers 71 stop without any influence on the corresponding side flange 19. As shown in the left part of, it can be used in the manner described above on the cover 79 located on the same side of the face 3. A person skilled in the art can easily understand the form of the influence of the carriage 48 on the mount 4 or the mounts 4 in this variant and as a result is not described in further detail.

While the method of implementing the invention described above is presently preferred, a person skilled in the art can understand that the implementation method is only a non-limiting embodiment, and various modifications are possible without departing from the scope of the present invention.

Claims (10)

As a longitudinal power supply line mounting and detaching carriage of a moving member having a substantially constant cross section and having three conductive longitudinal elements 4 and 7 fixed to each other, ie A rigid flat base 13 having a longitudinal central plane 3 perpendicular to the plane 3, a flat central flange 18 lying along the plane 3 and two elastically flexible flats The side flanges 19 have three flanges 18, 19 which lie on the same side as the base 13, and on each side thereof, approximately parallel to the plane 3, and these three flanges ( 18 and 19 are respectively connected to the base 13, each having free ends 20 and 21 on opposite sides thereof, and the ribs 32 and 37 connect each other in pairs in a direction perpendicular to the plane 3. The mounting body 4 of the support having the cross-sectional shape of the ribs 32, 37 pivoted toward the neighboring flanges 18, 19 so as to face, Each connecting wire 7 being symmetrical with respect to the plane 3, each pressing its free end 21 in a direction away from the plane 3, towards the plane 3 To each groove of the self-pressurized, toward the plane 3, by the other groove 11 of the free end 20 of the central flange 18, under conditions of elastic deflection prestressing of the two side flanges 19. It is provided with two grooves 11 fixed to one of the free ends 20 and 21, and between the corresponding free ends 20 and 21, the clamping effect of fixing the mounting body 4 to each wire ( In the mounting and detachable carriage having two wires (7) in contact with the moving element to apply to The carriage, A rigid chassis 49 having a longitudinal central symmetry plane 3, The chassis between the chassis 49 and the mounting body 4 in the direction in which the longitudinal central symmetry plane 3 coincides with the longitudinal central symmetry plane 3 of the mounting body, on the other hand by the mounting body 4. A detachable mechanical connecting means 57 providing support of the 49 and, on the other hand, guiding the chassis 49 in longitudinal translational movement with respect to the mounting body, Held by a chassis, each lying on each side of the longitudinal plane 3, symmetrical with respect to the longitudinal plane at each particular stop position with respect to the chassis 49, starting at respective stop positions, starting at least In the direction spaced from the direction plane, in the longitudinal plane 3 two sides which can engage with the free end 21 of each lip 37 corresponding to the side spaced in the longitudinal plane 3. The engagement member 71, In a controlled manner, in the direction perpendicular to the longitudinal plane 3 and upon return to each stop position, in the direction approaching the longitudinal plane 3 perpendicularly, in the chassis 49 Means (79, 94) for forcibly moving the engagement member (71), A member 128 which is held by the chassis 49 and which presses the connecting wire 7 symmetrically with respect to the longitudinal plane 3, In a controlled manner, means 120, 123 for forcing the thrust member 128 with respect to the chassis 49 in one direction and in the transverse direction (axis 119) of the longitudinal plane 3. Equipped, Can mate with the free end 20 of the central flange 18, along the longitudinal plane 3 and between the corresponding ribs 32, at least in a direction spaced apart from the longitudinal plane on each side. A central engagement member 70 supported by the chassis 49, The thrust member 128 can act as a support for the two connecting wires 7 in a direction away from the base 13 of the mounting body 4 parallel to the longitudinal plane 3. Detachable carriage. The method of claim 1, In the case of the mounting body 4, the free end 21 of each side flange 19 protrudes from each side flange 19 in a direction pivoting toward the base 13 and spaced apart from the plane, the plane ( 3) each having a longitudinal plane (39) substantially perpendicular to (3), wherein the mechanical connecting means (57) are means (57) for rotating across both ends of the longitudinal plane (39). The method according to claim 1 or 2, Means 79 and 94 for moving the side engagement member 71 lying on one side of the longitudinal plane 3 to move the side engagement member 71 lying on the other side of the longitudinal plane 3. Mounting and detaching carriage, characterized in that independent of the means (79, 94) for. The method according to any one of claims 1 to 3, In the case of the mounting body 4 the free end 20 of the central flange 18 has a longitudinal groove 31 which is pivoted in the base 13 and located between the corresponding lips 32 along the plane 3. The free end 21 of each side flange 19 is offset with respect to the corresponding lip 37 in the spaced direction in the plane 3 and in each longitudinal groove 41 being spaced apart in the base 13. With A central engagement member 70 lies along the longitudinal plane 3 and is mounted so as to be able to rotate about the chassis 49 about an axis 66 perpendicular to the longitudinal plane 3, Has at least one central roller 70 which can circumferentially engage the groove 31 of the central flange 18 without moving about the chassis 49 relative to the translation along the axis of rotation 66. , The side engagement members 71 are respectively placed on each side of the longitudinal plane 3 and are symmetrical with respect to the longitudinal plane at each stop position, the same axis 66 perpendicular to the longitudinal plane 3. With at least one pair of side rollers 71 mounted so as to be rotatable about the chassis 49 and able to circumferentially engage the grooves 41 of one side flange 19. Features mounting and detachable carriage. The method according to claim 3 or 4, The position adjustable means 79 and 94 of the side roller 71 is Slidably moveable about the chassis 49 along the axis of rotation, rotatably mounted about the axis of rotation without translational movement along the axis of rotation without rotation about the chassis 49 about the axis of rotation 66. Slider 94, -Rotate about the chassis 49 about the axis of rotation 66 and engage each slider 94 with a thread without translation, about the chassis 49 along the axis of rotation 66; Mounting and detachable carriage, characterized in that it comprises a screw (79) for fixing the adjustment means that can rotate about the chassis (49) about the shaft (66). The method according to claim 4 or 5, Mounting and detachable carriage, characterized in that the axis of rotation (66) of the center roller (70) coincides with the pair of side rollers (71) in which the center roller (70) lies between. The method according to any one of claims 4 to 6, The central engagement member 70 comprises two embodiments of the central roller 70 which are symmetrical with respect to the specific transverse plane 50 of the chassis 49, The side engagement member 71 has said pair of embodiments which are mutually symmetric with respect to said transverse plane 50, Mounting and detaching carriage, characterized in that means (79, 94) for moving the side engagement member (71) are provided in two mutually independent corresponding embodiments. The method according to any one of claims 4 to 7, In the case of the mounting body 4, each of the grooves 31 and 41 has a V-shaped cross section, and at least one central roller 70 and at least one pair of each side roller 71 of the pair are each convex circumference. And the V-shaped cross section seen in any plane including the rotation axis (66). The method according to any one of claims 1 to 8, The thrust member 128 is a bearing 128 mounted so as to be able to rotate about the chassis 49 about an axis 124 perpendicular to the longitudinal plane 3 and mutually with respect to the longitudinal plane 3. With two circumferential grooves 132 which are symmetrical, it receives one of the two connecting wires 7 and the means for moving the thrust member 120, 123 are transverse (axial) with respect to the chassis 49. (119) means for adjusting the position of the axis of rotation (124) of the bearing (128). The method of claim 9, The means for adjusting the position of the rotating shaft 124 of the bearing (120, 123), A slider 120 mounted so as to be able to slide about the chassis 49 along the transverse direction (axis 119) without the possibility of relative movement, while at the same time allowing the rotational axis 124 of the bearing to be fixed, Threaded on the slider 120 about the transverse axis 119 in the longitudinal plane 3 and without translational translation with respect to the slider 120 along the transverse axis of rotation 119. And a screw 123 mounted to the chassis 49 by means of 112 and fixed to an adjustment means capable of rotating about the chassis about the transverse rotational axis 119. Detachable carriage.