HK1188042B - Connecting link for lengths of wire cable tray - Google Patents

Description

Connecting clamp for a section of a cable duct

Technical Field

The invention relates to a splice plate for a section of a wire cable duct.

The field of the invention is the splice connection of sections of a wire-type cable duct. Such sections are used to implement cableways that ensure the support, containment and protection of elongated elements, usually flexible, such as cables, but also tubes, for example pneumatic or hydraulic coupling tubes, optical fibres, etc. In the following description, for the sake of simplicity and clarity, only cables will be mentioned. This in no way involves restrictions on the use of the cableway.

Background

The wire cable tray generally has an elongated shape and a U-shaped cross section. A wire cableway comprises longitudinal wires, called warp wires, and transverse wires, called weft wires. The warp threads are most commonly straight threads, while the weft threads have a U-shape. All of the wires are welded to each other so as to be regularly spaced. Hereby is achieved a wire raceway having a grid-like structure comprising a bottom for supporting the cables, side walls or wings for holding the cables on the bottom, thereby forming troughs.

Fairways most often consist of a plurality of fairway sections that are assembled end to end, or at an angle to each other, or even realize branches that are T-shaped, X-shaped, Y-shaped, or other shapes. To connect such segments, it is then known to use connecting devices, commonly known as cleats.

There are many types of cleats, only some of which will be mentioned here. Thus, reference is made here to a splint such as the splint shown in document EP-1360749. These clamping plates are intended to be mounted on the flank portions of the wire-type cableway. The clip is not suitable for use at the bottom of a cableway. However, as known to those skilled in the art, for a cableway to support heavy loads, it is necessary to also provide a cleat connection at the bottom of the cableway between two adjacent sections. In this document, it is also proposed to provide a cable duct section with the clip disclosed in this document. The splint attaching operation is thus simplified.

Document WO-2009/007020 does not relate to a clip, but to cable duct sections that can be joined together without the use of clips. Such a cableway section is configured at one of its ends with a receptacle of a single piece with the cableway section for receiving an end weft of a similar cableway section.

In use, it may be noted that such a raceway section is provided in particular for implementing a splice connection like two sections. However, due to the need to cut back the section of cableway, it is suitable to provide "traditional" cleats to ensure coupling at the cuts made. Two cleat connection techniques should therefore be provided to implement such a cableway: the cableway uses a plurality of cableway segments as described in the prior art document WO-020.

Disclosure of Invention

The present invention is directed to solving the original technical problems. This in fact involves providing a cleat that can be pre-mounted removably on one section of a wire cable duct, so that the cleat arranged at the end of one section of the cable duct is ready to receive another section, to guarantee the cleat connection to these sections, while being removable and reusable in case a section of the cable duct should be cut to fit the length of the corresponding cable duct.

Advantageously, the splint according to the present invention will allow a splint connection with good mechanical properties to be implemented. Preferably, the clamping plate is also integrated in the cable channel so as not to form an obstacle that could be damaging to the cables intended to be positioned inside the cable channel.

To this end, the invention proposes a splice bar for a section of a wire cable duct comprising longitudinal warp threads on the one hand and transverse weft threads on the other hand, in order to define a groove having a bottom delimited by two side walls.

According to the invention, the splint comprises a first branch extending in a first transverse direction set to horizontal, and a second branch extending in a second transverse direction substantially perpendicular to the first transverse direction, the second branch thus being set to substantially vertical, arranged above the first branch, and

-the first branch portion has:

a support element for co-operating with at least one warp thread of each cableway section, and

at least two lateral stops are provided for the lateral stops,

-the second branch portion has:

a support element for cooperating with at least one warp thread of each cableway section,

at least two lateral stops, and

at least one protrusion extending substantially horizontally and having a substantially horizontal shape,

a longitudinal spacer element arranged between the lateral stops, allowing to separate the two end wefts, is provided on at least one of said branches, the two branches being mutually connected by an elastic hinge area whose axis is substantially longitudinal.

A clamping plate of this type can thus be supported between two warp threads of a cableway by means of the bearing elements of the first branch on the one hand and the bearing elements of the second branch on the other hand. The elasticity between the two branches and the projection (which may be a hard point, a protuberance, or any other type of obstacle, whatever its shape) allows to carry out the blocking of the clip on the cable channel, while thus ensuring that the clip remains on the cable channel. The cleat also allows for pre-installation onto an end of a cableway section. With respect to the fact that the longitudinal spacing member is between the lateral stops, it is understood that instead of having a spacing member between two stops at a time, it is understood that the lateral stops are longitudinally offset with respect to the spacing member and that the lateral stops are present on both sides of a transverse plane containing the longitudinal spacing member.

According to a preferred embodiment for a cableway whose width is not too large, the support member of the first branch comprises a third branch which is symmetrical to the second branch, so that the clip has the overall shape of a U, the base of which is formed by the first branch of the clip and the branches of which are formed by the second and third branches of the clip.

The connecting splint according to the present invention may be realized, for example, by cutting and bending a steel plate. In such a case, the connecting splint is, for example, such that the first branch portion has:

a base forming a substantially flat surface of elongated rectangular shape,

-side flaps extending substantially perpendicularly to the chassis from the longitudinal edges of the chassis,

-a tab cut and bent in the chassis to be on the same chassis side as the side flaps and at equal distances from said side flaps.

In the sandwich panel made of steel plates according to the invention, it is also possible to provide that the second branch is realized with an elongated rectangular steel plate portion, in which two transverse cuts are implemented to form three strips of material in a central portion of the rectangular portion; a longitudinal edge portion of the rectangular portion being connected to the first branch portion by a hinge region; the other longitudinal edge portion being bent to form a first longitudinal groove on the side opposite the hinge region; and all three strips are bent in a similar manner, forming a second groove parallel to the first groove, but with the concavity of the second groove facing opposite to the concavity of said first groove.

The connecting splint according to the present invention may also be implemented using bending and welding lines. In one such embodiment, for example, the splint comprises a first transverse thread for extending between two end weft threads, the splint having a first branch comprising at least one second thread bent in a U-shape and straddle-welded to the first transverse thread; the first transverse wire bears at each of its ends a wire in the form of a clip comprising a base and two arms; the base of each clip is welded to the free end of the first transverse wire; and each arm of the clip extends substantially parallel to the first transverse line, forming an elbow, the concavity of which is intended to be oriented towards the inside of the cable duct.

The invention also relates to an assembly formed by a raceway section and at least one clip, characterized in that each clip is a clip as described above. Preferably, such an assembly is characterized in that the wire-type cable-duct section comprises, on the one hand, longitudinal warp threads and, on the other hand, transverse weft threads, so as to define a groove having a bottom delimited by two side walls; each cleat is mounted on a section of the cableway such that the cleat straddles a weft thread, which is advantageously an end weft thread.

Drawings

The details and advantages of the invention will be better understood from the following description made with reference to the accompanying schematic drawings, in which:

figure 1 shows a first embodiment of a splint according to the invention in a perspective view,

figure 2 shows the splice plate of figure 1 installed to effect a splice plate connection of two raceway sections,

figure 3 shows an embodiment variant according to the invention in perspective view,

figure 4 corresponds to the variant of figure 3 in the position of carrying out the splice connection of two cableway sections of large width,

figure 5 is another embodiment variant of a clamping plate made of steel plate according to the invention,

fig. 6 shows an embodiment variant of the clip according to the invention embodied in wire, in a perspective view in the position of the clip connection between two wire-type raceway sections,

FIG. 7 is a side view of a cleat attachment according to another embodiment variation, an

Fig. 8 shows the splint connection of fig. 7 in perspective.

Detailed Description

Fig. 1 shows a first embodiment of a splint according to the invention.

The splint of fig. 1 has an overall shape of a U. The splint thus has a base or first branch 2, which is arranged between two lateral arms, hereinafter referred to as second branch 4 and third branch 6. As illustrated from fig. 1, the clamping plate shown here is made of a steel plate, for example a galvanized steel plate, which is cut and bent to obtain the shape shown and described below.

The first branch 2 has a substantially flat central portion 8. The flat central portion is set to be horizontal in the following description. It is also set that the second branch portion 4 and the third branch portion 6 extend upward from the first branch portion 2. Finally, as noted, the central portion 8 is in the shape of an elongated rectangle. The long side of the rectangular shape is set to extend in a direction called the lateral direction. Thus, the small side of the central portion extends longitudinally. This orientation is selected for the following description. As will be seen hereinafter, this orientation corresponds to the orientation of the splice plate connecting the two wire-type cableway sections, the bottoms of which extend horizontally. This orientation corresponds to the "natural" orientation of the splint.

The central portion 8 has transverse flanges 10 (only one of which is visible in fig. 1 and 2) on its two transverse edges. These transverse flanges 10 are formed by bending the steel plate edges through approximately 90. Thus, the transverse flange 10 extends vertically downwards from the central portion 8. These flanges 10 form a reinforcement of the central portion 8 to reinforce the central portion. These flanges are oriented downwards so as not to risk damaging the cables to be arranged into the cableway.

The ends of the central portion 8 at the longitudinal edges of the central portion are curved. There is a longitudinally extending groove 12 at each end of the central portion 8. The groove 12 is arranged below the level of the central portion 8. The bottom of the channel 12 is substantially in the shape of a half cylinder with its concavity facing upwards. The transverse flanges 10 are elongated at each groove 12, thus reinforcing these grooves as well.

It is also noted on fig. 1 that there are two first transverse apertures 14 in the bottom of each groove 12. These first transverse apertures 14 are each associated with each groove 12: on the one hand, a material web is defined between the apertures, which forms a spacer projection 16, the function of which is immediately apparent to the person skilled in the art by viewing fig. 2; on the other hand, two lateral material strips are defined, which form two lateral stops 17. It can furthermore be noted that there is an aperture 18 in the centre of the central portion 8. The aperture may be utilized to secure a fitting such as a suspension threaded rod.

The second branch 4 and the third branch 6 are similar and they are symmetrically mounted with respect to the first branch 2. Therefore, only the second branch portion 4 is described below. The second branch 4 extends from a longitudinal edge of the groove 12 of the first branch 2. The second branch portion 4 extends substantially vertically upward from the first branch portion 2.

The second branch portion 4 has a plurality of portions described below.

The first portion of the second branch portion 2 will be referred to as a base 20. The base includes a flat vertical portion 22. The second portion of the second branch 4 has a bevel 24. The ramp connects to the flat upright portion 22. A transition region with a more or less large radius of curvature is provided between the flat vertical portion 22 and the ramp 24. The ramp extends divergently from the base 20, i.e. away from the third branch 6.

The second branch 4 terminates on the side of its free end with a bent tongue forming a hook 26. The hook 26 defines a longitudinal slot 28 which opens out of the cleat.

The transverse flange 10 is elongated along a flat vertical portion 22 and along a ramp 24.

It can be noted that a second lateral cleft 30 is present. These second lateral apertures are aligned with the first lateral apertures 14, extending over the entire inclined surface 24 or a part of the inclined surface 24 and partially at the hook 26. Here, there are also three strips of material at the transverse slit 30: a spacing strip 31 between the second transverse slits 30 and two lateral strips 33 on either side of the second transverse slits 30.

The hook 26 comprises a return portion 32, which return portion 32 extends horizontally or slightly obliquely with respect to the horizontal from the inclined surface 24 towards the interior of the clamping plate, i.e. towards the third limb 6 of the clamping plate. This return is in turn extended by a curved bottom 34, the curved bottom 34 carrying the free end of the hook 26 in the form of a tongue 36. The tongue 36 and the return 32 are substantially flat, the corresponding planes diverging slightly from the curved bottom 34.

Fig. 2 shows the use of the splice plate of fig. 1 to connect two raceway sections 38. Such a wire cableway is considered here: the wire cable has linear longitudinal warp threads 40 and U-shaped transverse weft threads 42. It may be noted that some warp threads are not completely rectilinear. This involves the edge line 40' having a recess. In fact, the cableway shown here is made according to the invention described in document EP-0298825, and more particularly of the type shown on figure 4 of this document.

To implement the cleat connection shown in fig. 2, it is an option to place the two cableway sections 38 in position end to end, or to pre-install the cleat of fig. 1 on one end of the cableway section and then latch the resulting assembly to the other cableway section.

In the first case, when two cableway sections 38 are arranged end to end, it is proposed to position the cleats so that the longitudinal housings 28 receive the opposite ends of the side lines 40' of these cableway sections 38. Here the bottom of the cableway section is set in the horizontal plane. When the cleats are present relative to the fairway section 38, the first branch 2 is inclined, for example, by an angle of about 45 ° relative to the horizontal. The cleat is then pivoted about both ends of the sideline 40' so that the first branch 2 of the cleat is close to the bottom of the cableway. The dimensions of the clip are of course adapted to the dimensions of the cableway.

When the first branch 2 of the clip is close to the bottom of the fairway section, the ramp 24 of the third branch 6 of the clip, or more precisely the transverse flange 10 at the ramp 24, is in contact with the opposite edge line 40'. To enable continued rotation, the clamping plate is adapted to be deformed, tightening the third branch 6 towards the second branch 4. Such a deformation is possible by virtue of the elasticity of the clamping plate, which is obtained in particular by the configuration of the groove 12. When the hooks 26 of the third branch 6 then reach the corresponding edge 40', the cleat returns to its undeformed initial shape, with the end of the edge 40' seated against the curved bottom 34 of the third branch 6. The mounted position shown on fig. 2 is thus obtained.

It can be noted that the end weft 42 is seated in the first transverse slot 14 on the one hand and in the second transverse slot 30 on the other hand. The spacer projections 16 of the groove 12 and the spacer strip 31 between the second transverse slot 30 likewise ensure that the two end wefts 42 are spaced apart. The lateral stops 17 and the lateral bands 33 allow these end wefts 42 to be longitudinally held in their position. As far as the hooks 26 are concerned, they ensure that the edge line 40' is held vertically. This achieves a good clamping connection of the two raceway sections 38.

The cleat is thus installed: and (4) pivotally mounting, and performing locking at the end of mounting. For this latch, the resilience of the clamping plate and the coupling of the projection and ramp formed by ramp 24 to hook 26 are used.

As previously noted, a cleat may also be installed at the end of one raceway section 38, followed by a cleat connection with a second raceway section 38. As described above, referring to the mounting on both ends of the cableway section, the clip is mounted on one end of the cableway section to perform the clip connection thereof. Once the cleat is mounted to the end of the first cableway section 38, the cleat connects the second sections by relative vertical movement between the two ends of the cableway section. At the beginning, the section fitted with the cleat is positioned relative to the second cableway section 38 such that the cleat portion projecting from the first cableway section 38 is arranged above the end weft 42 of the second cableway section 38. Here, for example, it is provided that the first cableway section 38 with the clamping plates can be moved relative to the second cableway section 38, which is provided as fixed. When the first cableway section 38 is lowered, the end weft 42 of the second cableway section 38 will engage in the second transverse slot 30. The edge line 40' of the second raceway section 38 will then come into contact with the inclined surfaces 24 of the second and third branches 4, 6 of the clamping plate. By pressing, due to the inclination of the ramp 24, a deformation of the splint will occur, causing the second branch 4 and the third branch 6 to tighten towards each other. When the borderline 40' then reaches the hook 26 of the second and third branch 4, 6, the second and third branch 4, 6 can be moved apart into their rest position. Thus, a splint connection is achieved.

In the above, it is proposed that in the connected position of the clamping plate, the clamping plate returns to the rest position. It can be provided that the second branch 4 and the third branch 6 are slightly prestressed in the position in which the splint is connected. In this way, a better mechanical retention of the clip on the raceway section is achieved, so that also different gaps, for example, due to manufacturing tolerances of the raceway section and the clip, can be compensated.

Fig. 3 and 4 show an embodiment variant of a clip connection for the implementation of a large-width cable duct. It is proposed here to "cut" the splint of fig. 1 into two. This results in the two clamping plates shown in fig. 3 and 4.

In this second embodiment, it can be noted that the illustrated clamping plate is in the form of an L-shaped piece (squerre). And thus there is only a first branch 102 and a second branch 104.

The first branch 102 has a flat central portion 108. Here again taking the same orientation as before, the central portion 108 is set to be horizontal. It also has an elongated rectangular shape with the major edges of the rectangle extending in the transverse direction and the minor edges extending in the longitudinal direction. One longitudinal small edge is a free edge portion, while the other longitudinal small edge performs the coupling with the second branch portion 104. The lateral edges of the central portion 8 are bent downwardly to form lateral flanges 110 on either side of the central portion.

It can be seen that there is a first recess 112 in the transverse flange 110 on the side of the second branch 104. As will be immediately apparent to those skilled in the art from fig. 4, the first notches 112 serve to allow passage of the warp threads 40 of the cableway section 38.

It can also be seen that there are second 114 and third 116 notches on the free end side of the central portion 108. The second recess 114 is identical in overall shape to the first recess 112. This actually involves a notch in the shape of a U, the branches of which are oriented vertically, the U opening downwards. The difference between the second notch 114 and the first notch 112 is the width of these notches. The second notch 114 is of a smaller width relative to the first notch 112. Indeed, as will be seen hereinafter, the second notch 114 will be used to position the second cableway section 38 in a transverse direction relative to the first cableway section 38.

The third recess 116 is also a U-shaped recess. However, the opening of the recess is oriented downwards and is inclined outwards of the clamping plate, for example at an angle of between 30 and 60 °, for example 45 °.

It can be seen that there is an aperture 118 in the central portion 108 similar to the aperture 18 of the splint of fig. 1 and 2.

The central portion 108 of the first branch 102 also includes spacing tabs 119. These spacing tabs are achieved by cutting and bending. In the embodiment shown in fig. 3 and 4, rectangular window-shaped pieces are cut out on three sides, and the obtained tongues are bent downwards, thus forming one spacer tongue 119 at a time.

The embodiment presented on fig. 3 and 4 does not use the grooves of fig. 1 and 2 anymore. The coupling between the first branch 102 and the second branch 104 is ensured by a single bending region. The second branch 104 is similar to the second branch 4 of fig. 1 and 2. The second branch has a base 120 with a flat vertical portion 122, and a ramp 124. The second branch 104 terminates in a hook 126, the hook 126 defining a longitudinal slot 128. Also seen is a second transverse slot 130, the second transverse slot 130 extending in the ramp 124, in turn in the return 132, to terminate in a curved bottom 134 to define a spacer strip 131 and two lateral strips 133, the hook 126 terminating in a tongue 136.

Here, too, the first branch portion 102 and the second branch portion 104 may be provided with elasticity therebetween. The resilience is sufficient to allow manual installation of the splint. Thus, if the first branch 102 is held fixed, a horizontal pressure of a few kilograms (illustratively, from 1kg to 10 kg) on the hook 126, for example, on the tongue 136, should enable the curved bottom 134 to bend approximately 5mm to 1cm inward of the cleat. The stiffness of the splint is thus determined according to the dimensions of the second branch 104. These values are given as schematic illustrations to illustrate the present specification. These values are valid for all embodiments of the splint according to the present invention.

The cleat of fig. 3 and 4 is provided for pre-installation on an end of a cableway section 38. To implement this pre-installation, it is proposed to insert one end of a cable 40 at the bottom of the cableway into the third recess 116 of the clamping plate. Here, the bottom of the cable duct is set to be horizontally placed. The first branch 102 of the clamping plate is inclined, for example, by 45 ° with respect to the horizontal. The cleat in turn pivots about the warp yarn 40 received in the third notch 116 so that the second branch 102 is near the bottom of the cableway section 38. The chamfer 124, or more specifically the transverse flange 110 at the chamfer 124, then contacts the corresponding edge line 40'. By deforming the clamping plate as described above, a locking of the clamping plate on the end of the first cable duct section 38 is achieved. The end of the sideline 40' is then received in the longitudinal slot 128 of the hook 126.

The cleat is thus mounted at each flank of the first cableway section 38. The clip connection to the second raceway section 38 can then be carried out in the same way as described above with reference to fig. 2: it is only necessary to latch the end of the second raceway section 38 into a pre-installed clamping plate on the end of the first raceway section 38.

In the cleated position, the end weft threads 42 are held apart by the spacer tongues 119 and by the spacer tape 131. Lateral retention of the end weft threads 42 is ensured here by the transverse flange 110 at the first branch 102 and by the lateral strip 133 at the second branch 104. The vertical retention is ensured by the hook 126 and also by the third notch 116 and the second notch 114. As with the embodiment of fig. 1 and 2, the elasticity of the clip here assists in good retention of the clip on the cable duct and thus in good clip connection of the two cable duct sections 38.

The embodiment shown in fig. 5 is used to implement a cleat connection to a cable duct of medium width.

The structure of the splint shown in fig. 5 closely approximates the structure of the splint shown in fig. 1 and 2. It is thus proposed that the description of the figure is re-referenced with the same numerical references as those used for the description of fig. 1 and 2.

A splint with a first branch 2, a second branch 4 and a third branch 6 can be found here. The second branch portion 4 and the third branch portion 6 are still configured exactly the same as the second branch portion 4 and the third branch portion 6 of fig. 1.

The first branch 2 also comprises a central portion 8 having at the ends a transverse flange 10 and a groove 12. In this embodiment of fig. 5, the first branch part 2 is longer than the first branch part 2 on fig. 1 to fit into a cable duct of a larger width. In order to achieve a better retention at the bottom of the cableway, it is proposed here to implement in the central part deformations which are concave, such as wave troughs, and are referred to here as depressed regions 44. At each recessed area 44, a third transverse slot 46 is implemented. These third lateral apertures are aligned with the first and second lateral apertures 14, 30. For each recessed area 44, there are thus two third transverse slits 46, which extend in parallel, defining a spacing strip 48 and two lateral strips 49 with one another.

The third transverse slit 46 is intended to receive the end wefts 42, the spacer tape 48 being intended to ensure a predetermined separation of these end wefts 42, the longitudinal retention of these end wefts being ensured by the lateral tape 49. A better retention of the two cableway sections 38 at the bottom of the cableway is thus achieved.

It is proposed to make the sandwich panel according to the invention with cut, bent and welded lines to obtain the embodiment shown on figures 6 to 8, whereas in the embodiment of figures 1 to 5 the sandwich panel is made with cut and bent steel plates. For example, the properties of the wire used are the same as those used for implementing the cableway section.

In the embodiment of fig. 6 to 8, a splint can be found which has a structure having a first branch 202, a second branch 204 and a third branch 206. In the embodiment shown, five lines are used, separated. These lines are of three different types: a center line 250, end lines 252, and a bottom line 254. There is a center line 250, two end lines 252 and two bottom lines 254.

The shape of the center line 250 is a U-shaped overall shape. The centerline has a substantially linear base 256. The seat 256 is used here to achieve a separation between two end wefts 42, which seat is accommodated between two such end wefts 42. In the illustrated embodiment, the base 256 is simply bent at its ends (no longer in the form of the groove 12). The two wings of the center line 250 are symmetrical. Thus, only one of the wings will be described herein. On the side of the base 256, the wing of the center line first has a first vertical portion 220. Here too, the base 256 of the clamping plate is oriented horizontally. The wings of center line 250 extend above mounts 256. Furthermore, the center line 250 is arranged in a transverse plane.

The first vertical portion 220 is elongated by an angled second portion 224 that is distal from the opposing wing of the U-shaped center line 250. Each wing of the center line 250 terminates in a return 232, the return 232 being oriented substantially horizontally toward the interior of the splint.

The free ends of the return 232 each support an end line 252.

Each end wire 252 is in the form of a clip. The clip has a base 258 with two arms 260 extending from the base 258. The two arms are symmetrically arranged with respect to the base 258. The shape of the arms 260 is such that they extend substantially parallel to the ends of the wings of the centre line 250. Each arm 260 has an overall shape that is V-shaped. The first leg of the V, which is the leg on the side of the base 258, extends substantially parallel to the return 232. The second branch of the V extends substantially parallel to the end of the inclined second portion 224, more precisely the end of the second portion on the side of the return 232. The arms 260 are arranged in a transverse plane, while the bases 258 of the end wires 252 extend longitudinally.

The bottom line 254 is simply U-shaped. The bottom line is arranged in a longitudinal plane, the base of the U being substantially horizontal, the branches of the U being oriented vertically downwards. The bottom wire 254 straddles the base 256 of the center wire 250 and serves as a receptacle for the end weft wires 42 of the two cableway sections 38 to be cleated.

The operation of the wire-made cleat as shown on fig. 6 to 8 is similar to the operation of the cleat shown on fig. 1, 2 and 5. To arrange the clip on one end of one raceway section 38, or to directly carry out the clip connection of two raceway sections 38 arranged end to end, the base 258 of one end wire 252 is brought into abutment against one (or both) ends of the sideline 40'. The cleat is then pivoted so that the base 256 of the center line 250 is seated between the end weft threads 42. In this movement, the arms 260 of the end line 252 and the projections formed by the ends of the wings of the central line 250 come into contact with the opposite edge line 40'. The splint is then finally installed by deforming the splint by bringing the second branch portion 204 close to the third branch portion 206. In the final position, the base 258 bears against the ends of the sidelines 40' of the cableway sections 38 that are being cleated. As regards the central line 250, it then extends between the two end wefts 42 of the cableway section to be connected.

The embodiment of fig. 7 and 8 differs from the embodiment of fig. 6 only in that: the centre line is not a cylindrical line but rather is in the form of a band. In this way, a slightly greater spacing between the two end wefts 42 of the cableway section 38 is possible.

As is evident from the preceding description, the clip according to the invention can implement the clip connection of two cableway sections with a single component. In an embodiment variant, it is conceivable to have two components to implement such a cleat connection.

The splice plate according to the invention, thanks to its design, is easily adapted to the shape and aesthetic characteristics of the cableway for which it is intended. In the embodiment described, no damaging edge can come into contact with the cable intended to be seated in the cable duct, since the clamping plate is completely integrated in the corresponding cable duct.

The invention herein proposes a transversely mounted cleat, and most often a cleat mounted longitudinally with respect to the raceway. In all embodiments, the cleat is supported on a wing of the raceway, preferably at the edge of the wing, extending to the bottom of the raceway. The clamping plate is thus mounted by latching and engages between two warp threads of the cable duct. In the embodiment with three branches, the splint is preferably supported on two opposite side lines (here it is considered to be supported on the middle meridian of the wing).

The elasticity of the clamping plate enables the clamping plate to be manually mounted and dismounted. Advantageously, the splice plate according to the invention is pre-mounted on the end of a cableway section. This pre-installation may be performed manually or may be performed by an automated tool. The cleats are then elastically retained on the cableway section, which can be easily removed, for example in case the cableway section should be arranged in length (mis longitudinal).

The clip connection according to the invention ensures good mechanical strength and good connection of the cable duct sections. As appears from the foregoing description, at the bottom of the cableway, the two end wefts of the cableway section can be well maintained to guarantee a good coupling and a good load strength.

When the cleats are pre-installed on the end of one cableway section, the coupling with the second cableway section can be easily performed simply by sliding and latching the end weft of the second cableway section on the pre-installed cleats.

Of course, the present invention is not limited to the above-described embodiments. The invention also relates to all the variants that can be implemented by a person skilled in the art within the scope of the following claims.

It is therefore not departing from the scope of the invention to implement a cleat made of steel plate, the central part of the first branch being not inside the cable duct but outside the cable duct in the mounted position.

Of course, embodiments are conceivable which combine a sheet-metal part and a wire part, for example. Other forms and other materials are also contemplated. Synthetic or composite materials, for example obtained by moulding, also allow the implementation of the splint according to the invention.

Claims (10)

1. Connecting cleat for a section (38) of a wire cable duct comprising longitudinal warp threads (40, 40') on the one hand, and transverse weft threads (42) on the other hand, to define a slot having a bottom delimited by two side walls, characterized in that it comprises a first branch (2; 102; 202) extending in a first transverse direction set to be horizontal, and a second branch (4; 104; 204) extending in a second transverse direction substantially perpendicular to the first transverse direction, the second branch (4; 104; 204) thus being set to be substantially vertical, arranged above the first branch (2; 102; 202); and the number of the first and second electrodes,

-said first branch (2; 102; 202) having:

a support element for co-operating with at least one warp thread (40, 40') of each wire-type cableway section (38), and

at least two lateral stops are provided for the lateral stops,

-said second branch (4; 104; 204) having:

a support element for cooperating with at least one warp thread of each wire cable tray section (38),

at least two lateral stops (31; 131), and

at least one protrusion extending substantially horizontally and having a substantially horizontal shape,

a longitudinal spacer element is provided on at least one of the first and second branches, said longitudinal spacer element being arranged between the lateral stops of said first branch and being able to separate the weft threads (42) of the two ends, the two branches being connected to each other by an elastic hinge area having a substantially longitudinal axis.

2. Splice bar for wire-type cableway sections according to claim 1, characterized in that the support part of the first branch comprises a third branch (6; 206) which is symmetrical to the second branch, so that the splice bar has the overall shape of a U whose base is formed by the first branch of the splice bar and whose branches are formed by the second and third branches (6; 206) of the splice bar.

3. The splice strap for wire cableway sections according to claim 1 or 2, characterized in that it is made by cutting and bending a steel plate.

4. The splice bar for wire cableway sections according to claim 3, characterized in that said first branch portion has:

a base (8; 108) forming a substantially flat surface of elongated rectangular shape,

-side flaps (10; 110) extending from the longitudinal edges of the chassis substantially perpendicularly to the chassis,

-a tab (119) cut and bent in the chassis to be on the same chassis side as the side flap and at an equal distance from the side flap.

5. Connecting jaw for wire-type cableway sections according to claim 3, characterized in that said second branch is realized with an elongated rectangular portion made of steel plate in which two transverse cuts (30; 130) are made to form three strips of material in the central part of said rectangular portion; a longitudinal edge portion of said rectangular portion being connected to said first branch portion by said resilient hinge region; while the other longitudinal edge portion is bent to form a first longitudinal groove (28; 128) on the side opposite to said elastic hinge region; and all three strips are bent in a similar manner, forming second grooves parallel to the first longitudinal grooves, but with the concavity of the second grooves facing opposite to the concavity of the first longitudinal grooves (28; 128).

6. Connecting clip for wire cable duct sections according to claim 1 or 2, characterized in that it is made using bent and welded wires.

7. The splice bar for wireform cableway sections according to claim 6, characterized in that it comprises a first transverse wire (250) intended to extend between the weft threads (42) of the two ends; the first branch portion comprises at least one second wire (254) bent in a U-shape straddling welded to the first transverse wire (250); -said first transverse wire (250) bears, at each of its ends, a wire (252) in the form of a clip comprising a base (258) and two arms (260); the base (258) of each clip is welded to the free end of the first transverse wire (250); and each arm (260) of the clip extends substantially parallel to said first transverse line (250) forming an elbow, the concavity of which is intended to face towards the inside of the wire cable tray.

8. Assembly formed by a section of a wire cableway and at least one splice strap, characterized in that each splice strap is a splice strap for a section of a wire cableway according to one of claims 1 to 7.

9. Assembly according to claim 8, wherein the wire cableway section comprises longitudinal warp threads (40, 40') on the one hand and transverse weft threads (42) on the other hand, to define a groove having a bottom delimited by two side walls; and each splice bar is mounted on the wire cableway section (38) such that the splice bar straddles a weft thread (42).

10. Assembly according to claim 9, characterized in that the weft thread (42) is an end weft thread.