DK201600779A1

DK201600779A1 - A cable fastening device

Info

Publication number: DK201600779A1
Application number: DKPA201600779A
Authority: DK
Inventors: Teidt Due; Paulus Leonardus Van Oosterhout
Original assignee: Duelco As
Priority date: 2016-12-21
Filing date: 2016-12-21
Publication date: 2018-03-26
Also published as: DK179271B1

Abstract

The invention relates to a cable fastening device (100) for fastening one or more cables (2) to a structure, said cable fastening device comprises a first element (4); a second element (6); a top part (8); -wherein the first element (4) comprises a front surface (10) and a rear surface (12); -wherein the second element (6) comprises a front surface (14) and a rear surface (16); -wherein said front surface (10) of said first element (4) comprises a rung channel (18) for at least partly accommodating a rung (20) and/or wherein said rear surface (16) of said second element (6) comprises a rung channel (18) for at least partly accommodating a rung (20) wherein said top part (8) comprises a front surface (22) and a rear surface (24), wherein said rear surface of said top part comprises a cable channel (26) for at least partly accommodating one or more cables; and/or wherein said front surface (14) of said second element (6) comprises a cable channel (26') for at least partly accommodating one or more cables; characterized in that said first element (4) comprises a first set of engagement means (28) and in that said second element comprises a second set of engagement means (30), wherein said first set of engagement means and said second set of engagement means are configured to be able to enter into a locking engagement with each other.

Description

<¹θ> DANMARK <¹°> DK 2016 00779 A1

<¹²> PATENTANSØGNING

Patent- og

Varemærkestyrelsen (51)

Int.CI.: H 02 G 3/04(2006.01)

H 02 G 3/32(2006.01) (21) Ansøgningsnummer: PA 2016 00779 (22) Indleveringsdato: 2016-12-21 (24) Løbedag: 2016-12-21 (41) Aim. tilgængelig: 2018-03-26 (71) Ansøger: Duelco A/S, Systemvej 8, 9200 Aalborg SV, Danmark (72) Opfinder: Teidt Due, Svend Engelunds Vej 15, 9000 Aalborg, Danmark

Paulus Leonardus van Oosterhout, Prins. Bernhardstraat 48, 4471 RA Oud Sabbinge, Holland (74) Fuldmægtig: OTELLO ADVOKATANPARTSSELSKAB, Dalgasgade 25, 8., 7400 Herning, Danmark (54) Benævnelse: A CABLE FASTENING DEVICE (56) Fremdragne publikationer:

WO 2015183672 A1 EP 1720227 A1 US 2014239131 A1 US 2015275578 A1 (57) Sammendrag:

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DK 2016 00779 A1

A cable fastening device

Field of the invention

The present invention relates in general to fastening of power cables in buildings such as a wind turbine tower. More specifically the present invention relates in a first aspect to a cable fastening device for fastening one or more cables to a structure. In a second aspect the present invention relates to an arrangement for fastening one or more cables to a structure. In a third aspect the present invention relates to a system for fastening one or more cables to a structure. In a fourth aspect the present invention relates to the use of a cable fastening device of the first aspect of the present invention or of an arrangement according to the second aspect of the present invention or of a system according to the third aspect of the present invention for fastening one or more cables to a structure.

Background of the invention

Wind power is an environmentally friendly way of providing electric power and accordingly the number of wind turbines has in the latest decades experienced a tremendous increase.

A wind turbine comprises a wind turbine tower mounted in a foundation in the ground. In the opposite end of the tower a nacelle is pivotally arranged. The nacelle carries a generator and a rotor shaft and often also a transmission for adapting the RPM number of the rotor shaft to a

RPM number which is suitable for the conversion of torque into electric current in the generator. The rotor shaft is connected to a hub carrying the wind turbine blades.

In order to conduct the electric power generated by the generator in the nacelle, a number of power cables extend from the generator all the way down inside the tower to electrical installations near or in the ground.

As very high currents are involved in the conduction of power in the power cables electrostatic forces are generated between the individual cables. For this reason it is of paramount importance for a safe and secure installation that the power cables are being thoroughly fastened and fixed to the wind turbine tower or to a structural component thereof.

DK 2016 00779 A1

The cables will typically be fastened to a ladder structure located within the wind turbine tower and the ladder structure will in turn be fixed to the tower itself.

In US 2011/0315829 Al a fastening device is disclosed. The fastening device of US 2011/0315829 Al comprises a base and a cap. The base is intended for being arranged on the rear side of a rung of a ladder structure and the cap is intended for being arranged on the front side of that rung. The base comprises a support channel for accommodating the rung and also comprises a restraint surface for abutting a cable run. The cap comprises a restraint channel for accommodating the cable run. In use the base is arranged on the rear side of the rung, the cable run is arranged on the restraint surface of the base. Next the cap is arranged on top of the base in such a way that the cable run is being fixed between the base and the cap. Finally, bolts and nuts secure the base and the cap, and thereby also the cable run, to each other.

The fastening device disclosed in US 2011/0315829 Al suffers from the disadvantage that upon assembly of the device a worker must at the same time and in a single operation attempt to arrange the base around the rung, the cable run onto the restraint surface of the base, the cap on top of the cable run and finally secure those items in a fixed arrangement by bolting bolts and nuts to each other.

Such a single operation involving many elements to be arranged in a correct position relative to each other may be extremely difficult to bring about. This is particularly the case in a situation where a worker must perform the assembly step single-handed.

It is the objective of the present invention to alleviate or even eliminate this disadvantage of the prior art cable fastening means.

Brief description of the invention

These objectives are fulfilled according to a first, a second, a third and a fourth aspect of the present invention.

Accordingly, the first aspect of the present invention relates to a cable fastening device for fastening one or more cables to a structure, said cable fastening device comprises a first element;

a second element;

DK 2016 00779 A1 a top part;

-wherein the first element comprises a front surface and a rear surface;

-wherein the second element comprises a front surface and a rear surface;

-wherein said front surface of said first element comprises a rung channel for at least partly accommodating a rung and/or wherein said rear surface of said second element comprises a rung channel for at least partly accommodating a rung;

wherein said top part comprises a front surface and a rear surface, wherein said rear surface of said top part comprises a cable channel for at least partly accommodating one or more cables; and/or wherein said front surface of said second element comprises a cable channel for at least partly accommodating one or more cables;

characterized in that said first element comprises a first set of engagement means and in that said second element comprises a second set of engagement means, wherein said first set of engagement means and said second set of engagement means are configured to be able to enter into a locking engagement with each other.

In a second aspect the present invention relates to an arrangement for fastening one or more cables to a structure, said system comprises one or more cable fastening devices according to the first aspect of the present invention in combination with one or more rails;

wherein each said rail comprises an elongate element having a U-shaped middle profile and additionally comprising a first flap section and a second flap section; said first flap section and said second flap section extend in opposite directions from the ends of the U-shaped middle profile so as to define a common plane.

In a third aspect, the present invention relates to a system for fastening one or more cables to a structure, wherein said system comprises one or more cable fastening devices according to the first aspect of the present invention in combination with kit configured for forming a ladder structure;

wherein said ladder structure comprises two or more rungs and a first beam and a second beam, wherein each said rung is having a first axial end and a second axial end, wherein the first axial end of each rung is configured for being attached to said first beam; and wherein the

DK 2016 00779 A1 second axial end of each rung is configured for being attached to said second beam; thereby forming a ladder structure.

In a fourth aspect the present invention relates to the use of a cable fastening device according to the first aspect of the present invention or of an arrangement according to the second aspect of the present invention or of a system according to the third aspect of the present invention for fastening one or more cables to a structure.

The present invention in its various aspect provides for improved and easier handling of the entities necessary upon fastening one or more cables to a structure.

Certain aspects of the present invention additionally provides for a sturdy fastening of one or 10 more cables to a structure having improved strength.

Brief description of the figures

Fig. 1 shows in a perspective view a device according to the first aspect of the present invention in a disassembled state.

Fig. 2 shows in a perspective view a device of fig. 1 in a partly assembled state.

Fig. 3 shows in a perspective view a device of fig. 1 in a fully assembled state.

Fig. 4 shows in a perspective view an arrangement according to the second aspect of the present invention in a disassembled state.

Fig. 5 shows in a perspective view an arrangement of fig. 4 in a partly assembled state.

Fig. 6 shows in a perspective view an arrangement of fig. 4 in a fully assembled state.

Fig. 7 shows in a perspective view a system according to the third aspect of the present invention in a disassembled state.

Fig. 8 shows in a perspective view a system of fig. 7 in a partly assembled state.

Fig. 9 shows in a perspective view a system of fig. 7 in a fully assembled state.

DK 2016 00779 A1

Detailed description of the invention

The first aspect of the present invention relates to a cable fastening device for fastening one or more cables to a structure, said cable fastening device comprises a first element;

a second element;

a top part;

-wherein the first element comprises a front surface and a rear surface;

-wherein the second element comprises a front surface and a rear surface;

wherein said top part comprises a front surface and a rear surface, wherein said rear surface of said top part comprises a cable channel for at least partly accommodating one or more cables;

and/or wherein said front surface of said second element comprises a cable channel for at least partly accommodating one or more cables;

Providing the fastening device with three entities, viz. a first element and a second and a top part such as defined according to the first aspect allows for an easy and fast mounting of a cable to a structure because of the possibility of first engaging the first element and the second element, which in combination serves the purpose of forming a base to the cables to be mounted, around a rung makes the handling and fastening of the cables easier in that only the cables and the top part have to be arranged subsequently and fixed by fastening means , such as in the form of bolts and nuts.

DK 2016 00779 A1

The fastening device is designed so as to be able to be mounted on a rung. The rung may be a rung of a ladder, such as a conventional ladder used for ascending or descending a person in a vertical direction. Alternatively, the rung may be any other type of horizontally arranged bar suitable for being used for mounting one or more cables, in particular in the interior of a wind turbine tower.

Likewise, in the present description and in the appended claims, the term “rung channel” shall be construed to mean any type of channel arranged in the front surface of said first element and/or in the rear surface of said second element for at least partly taking up or housing a rung or any other type of horizontally arranged bar suitable for being used for mounting one or more cables, in particular in the interior of a wind turbine tower.

Accordingly, it is an essential feature of the fastening device according to the first aspect of the present invention that the first element comprises a first set of engagement means and that the second element comprises a second set of engagement means, wherein the first set of engagement means and the second set of engagement means are configured to be able to enter into a locking engagement with each other.

In one embodiment of the first aspect of the present invention, the first element and the top part comprises fastening means for allowing fastening said top part to said second element and/or to said first element.

Such fastening means allows for the final fastening of the individual entities of the device to 20 each other and thereby also allows fastening of the cables to the structure.

In one embodiment of the first aspect of the present invention the fastening means comprises one or more through-going holes in said second element and said top part and optionally also in said first element for allowing fastening said top part to said second element and/or to said first element; and wherein said device furthermore comprises one or more sets of bolts and nuts.

Providing the device with bolts and nuts and through-going holes in the individual entities ensures an efficient and low cost way of securing the individual entities and thereby also the cables to each other.

DK 2016 00779 A1

In one embodiment of the first aspect of the present invention one or more of the throughgoing holes in said first element or in said second element of said fastening means is being configured for accommodating a nut, thus being embedded in said through-going hole.

Providing the first element with a nut embedded in the through-going hole ensures a faster 5 and easier mounting of the cables in that a worker does not, in a mounting situation, have to keep track of arranging the nuts in a proper position for bolting together the individual entities of the device.

In one embodiment of the first aspect of the present invention the orientation of the rung channel in the first element and/or in the second element is perpendicular to the orientation of the cable channel in said second element and/or in said top part.

Such an arrangement ensures that the cable(s) can be accommodated in the cable channel in a vertical orientation, while the rung channel accommodates a rung, which is horizontally arranged.

In one embodiment of the first aspect of the present invention the second element comprises a 15 third set of engagement means and wherein said top part comprises a fourth set of engagement means, wherein said third set of engagement means and said fourth set of engagement means are configured to be able to enter into a locking engagement with each other.

This embodiment ensures that the top part may be preliminarily fixed to the second element before the individual entities of the device will finally be fixed to each other by means of the fastening means.

In one embodiment of the first aspect of the present invention the first set of engagement means and said second set of engagement means are configured to be able to enter into a releasable locking engagement with each other. In another embodiment the third set of engagement means and said fourth set of engagement means are configured to be able to enter into a releasable locking engagement with each other.

Such embodiments ensures that the engagement between the first set of engagement means and said second set of engagement means on the one hand; or that the third set of engagement means and said fourth set of engagement means can easily be brought into a disengaged state. This is an advantage in case a pair of elements or parts of the device needs to be rearranged in a better position.

DK 2016 00779 A1

In one embodiment of the first aspect of the present invention the first set of engagement means comprises one or more flexible engagement clips, and wherein said second set of engagement means comprises one or more recesses, or vice versa; wherein each said flexible engagement clip is configured to enter into releasable engagement with one of said recesses.

In one embodiment of the first aspect of the present invention the third set of engagement means comprises one or more flexible engagement clips, and wherein said fourth set of engagement means comprises one or more recesses, or vice versa; wherein each said flexible engagement clip is configured to enter into releasable engagement with one of said recesses.

Providing the engagement means with engagement clips and one or more recesses renders the engagement/disengagement between two parts/elements easy and fast.

In one embodiment of the first aspect of the present invention the first set of engagement means comprises two engagement means arranged at opposite edges of said first element; and wherein said second set of engagement means comprises two engagement means arranged at opposite edges of said second element.

In one embodiment of the first aspect of the present invention the third set of engagement means comprises two engagement means arranged at opposite edges of said second element; and wherein said fourth set of engagement means comprises two engagement means arranged at opposite edges of said top part.

The arrangement of the engagement means at edges of the first element, the second element and the top part provides easy access in a situation where the two parts/elements need to be disengaged.

In one embodiment of the first aspect of the present invention the nuts are being embedded in through-going holes in the first element, such as at a front surface or at a rear surface thereof.

Embedding the nuts in the though-going holes provides the advantages that a worker, upon fastening cables to a structure, needs to handle fewer parts in the assembly stage.

In one embodiment of the first aspect of the present invention the bolts have been preassembled to the top part by being inserted into the through-going holes from the front surface thereof and wherein said bolts are being prevented from falling out by being provided with a retention means, such as an O-ring, such as a polymer O-ring.

DK 2016 00779 A1

Such an embodiment provides easier and faster handling in the assembly stage upon fasteing cables to a structure.

In one embodiment of the first aspect of the present invention the first element, the second element and/or the top part independently is being made of a polymer, such as a fiber5 reinforced polymer, such as by molding; or independently is being made from a metal, such as aluminum, such as by extrusion and milling.

Such materials provides for easy, fast and cost-efficient, yet structurally sturdy parts of the device in the manufacturing process.

In a second aspect the present invention relates to an arrangement for fastening one or more 10 cables to a structure, said system comprises one or more cable fastening devices according to the first aspect of the present invention in combination with one or more rails;

Using a rail in combination with the fastening device according to the first aspect serves the purpose of providing improved strength in relation to the fastening of the one or more cables. Such improved strength is of particular importance in case the rungs, to which the mounting devises are to be fastened, are rungs of a conventional ladder normally used for allowing ascent and descent of persons.

The rails according to the arrangement of the second aspect of the present invention comprises a U-shaped middle profile which is adapted to be able to accommodate a rung, thereby improving the strength of the structure to which the fastening device is to me mounted.

In one embodiment of the arrangement of the second aspect of the present invention the first and the second flap sections comprises a plurality of through-going holes.

Such through going holes allow the bolts used for assembling and fastening of the fastening device around a rung to be fixed to the rail, thereby providing improved strength and fixture.

DK 2016 00779 A1

In one embodiment of the arrangement of the second aspect of the present invention the first and the second flap sections comprises a number of cut-aways at a rim thereof; and wherein at least one element or part of each said one or more cable fastening devices comprises one or more fixing protrusions, wherein the dimensions and location of said one or more fixing protrusions are adapted to the dimensions of said cut-aways, thereby preventing any lateral displacement of said cable fastening devices along said rail.

Such an arrangement provides for preventing any lateral movement of the fastening device on the rail.

In one embodiment of the arrangement of the second aspect of the present invention the one or more rails are being made from metal or an alloy, such as steel or aluminum.

Such material have proven suitable in terms of ease of manufacturing and production cost on the one hand, and in respect of strength on the other hand.

wherein said ladder structure comprises two or more rungs and a first beam and a second beam, wherein each said rung is having a first axial end and a second axial end, wherein the first axial end of each rung is configured for being attached to said first beam; and wherein the second axial end of each rung is configured for being attached to said second beam; thereby forming a ladder structure.

In one embodiment of the system of the third aspect of the present invention the kit configured for forming a ladder structure is being assembled into a ladder structure.

Such an embodiment provides for easy mounting of cables in that the ladder structure already is being assembled.

In one embodiment of the system of the third aspect of the present invention the two or more rungs are fastened to said first beam and said second beam by welding or by bolts and nuts.

DK 2016 00779 A1

Welding the rungs to the first beam and the second beam provides for a sturdy structure, which may not be disassembled, whereas fastening the two or more rungs are fastened to the first beam and the second beam provides for a structure which may be assembled and disabled for easy transportation and storage.

In one embodiment of the system of the third aspect of the present invention the two or more rungs are as defined in respect of the rail as defined in respect of the second aspect of the present invention.

In one embodiment of the system of the third aspect of the present invention the two or more rungs and/or the beam(s) are being made from metal or an alloy, such as steel or aluminum.

Referring now to the drawings for illustrating the present invention, Fig. 1 shows in a perspective view a device 100 according to the first aspect of the present invention in a disassembled state. The devise 100 is about to be assembled around a rung 20 of a ladder so as to fasten a bundle of cables 2 to a structure via the rung. In fig. 1 it is seen that the device

100 comprises a first element 4, second element 6, and a top part 8.

The first element 4 comprises a front surface 10 and a rear surface 12 and the second element 6 comprises a front surface 14 and a rear surface 16.

The top part 8 comprises a front surface 22 and a rear surface 24.

The front surface 10 of the first element 4 comprises a rung channel 18 for at least partly accommodating a rung 20 and additionally the rear surface 16 of said second element 6 comprises a rung channel 18’ for at least partly accommodating a rung.

Thereby the first element 4 and the second element 6 are being adapted to be secured to a rung.

DK 2016 00779 A1

In order for the device to be able to securely fasten one or more cables the rear surface of the top part comprises a cable channel 26 for at least partly accommodating one or more cables; and the front surface 14 of the second element 6 comprises a cable channel 26’ for at least partly accommodating one or more cables;

It is seen in fig. 1 that the orientation of the rung channels 18,18’ in the first element and in the second element are perpendicular to the orientation of the cable channels 26,26’ in the second element and in the top part.

The first element 4 comprises a first set of engagement means 28 arranged at an edge 48 of the first element and in that said second element comprises a second set of engagement means

30 arranged at an edge 50 of the second element. The first set of engagement means 28 and said second set of engagement means 30 are configured in such a way that they are able to enter into a locking engagement with each other. This is brought about by providing the first set of engagement means with a recess 46 in which a corresponding flexible engagement clip 44 can enter into a releasable locking engagement with the recess 46.

In the embodiment shown in fig. 1 the first set of engagement means 28 and the second set of engagement means 30 each comprises two engagement means arranged at opposite sides 48,50 of the first element and the second element, respectively.

Accordingly, when using the device according to the first aspect of the present invention for fastening one or more cables to a structure, the first element 4 and the second element 6 are first arranged around a rung as illustrated in fig. 1. Subsequently, the first element 4 and the second element 6 are brought into engagement with each other by means of the first set of engagement means 28 and the second set of engagement means 30.

This situation is further illustrated in fig. 2.

Fig. 1 shows bolts 36 for being arranged in through through-going holes 34 in the first element 4, the second element 6 and the top part 8 and tightened thereby finalizing the process of fastening the one or more cables 2 to the specific rung 20. The nuts 38 are in the embodiment illustrated in fig. 1 embedded into holes in the rear surface of the first element 4.

Fig. 2 shows in a perspective view a device of fig. 1 which has been assembled into a partly assembled state.

DK 2016 00779 A1

Fig. 2 shows the device of fig. 1 wherein the first element 4 and the second element 6 has been brought into engagement with each other around a rung 20.

In this partly assembled arrangement a worker may easily arrange the one or more cables 2 onto the front surface 10 of the second element and subsequently arrange the top part 8 on top of the second element and the one or more cables 2.

In other words, using the device according to the first aspect of the present invention, a worker upon fastening a cable onto a structure in the final assembly step only needs to deal with arranging the one or more cables 2 and the top part 8 on top of the second element which has already been fixed to the rung 20.

This is in striking contrast to the prior art system in which a worker has to arrange a base and one or more cables and a cap in one and the same assembly step.

After having fixed the first element 4 and the second element 6 around the rung 20 as shown in fig. 2 the one or more cables 2 and the top part 8 are arranged on top of the front surface 14 of the second element 6.

This is illustrated in fig. 3.

In fig. 3 the first element 4 and the second element 6 have been fixed around the rung 20 and the top part 8 has been arranged on top of the front surface 14 of the second element 6.

Finally, bolts 36 and nuts 38 have been arranged through through-going holes 34 in the first element 4, the second element 6 and the top part 8 and tightened thereby finalizing the process of fastening the one or more cables 2 to the specific rung 20.

In order to fully secure the one or more cables 2 to a structure a plurality of rungs 20 are preferably arranged on top of each other. This may be possible by fastening two or more rungs 20 to a first beam 72 and a second beam 74 in the form of a ladder structure 70.

The arrangement 200 comprises a device 100 according to the first aspect in combination with one or more rails 52.

DK 2016 00779 A1

The device 100 shown in fig. 4 is of the same time as the one illustrated in fig. 1,2 and 3. However, in the device shown in fig. 4, the first set of engagement means 28 of the first element 4 arranged at the edge 48 of the first element comprises a flexible engagement clip 44 and the second set of engagement means 30 arranged at the edge 50 of the second element

6 comprises a recess 46 in which a corresponding engagement clip 44 can enter into a releasable locking engagement.

Another difference, compared to the embodiment shown in fig. 1, is that nuts 38 have been arranged or embedded in through through-going holes 34 in the front surface of the first element 4. Arrangement of the nuts 38 at the front side of the first element 4 is possible because of the inclusion in the arrangement of a rail.

Each rail 52 serves the purpose of providing structurally improved strength.

Each of the rails 52 of the arrangement 200 are supposed to be arranged on a specific rung, thereby improving the strength of the rung structure itself.

As seen in fig. 4, the rail 52 comprises an elongate element 54 having a U-shaped middle 15 profile 56 and additionally comprising a first flap section 58 and a second flap section 60. The first flap section 56 and said second flap section 58 extend in opposite directions from the ends of the U-shaped middle profile so as to define a common plane.

The rail 52 the first and the second flap sections 58, 60 comprise a plurality of through-going holes 62. These holes allow the bolts 36 to extend through the first element, the second element, the top part as well as the rail itself upon assembly and fastening of the parts of the device 100.

Furthermore, as seen in fig. 4, the rail 52 comprises a number of cut-aways 64 arranged at rims 66 of the rail.

By providing the rail with such cut-aways any lateral movement along the rail is prevented 25 because at least one element or part 4,6,8 of each said one or more cable fastening devices

100 comprises one or more fixing protrusions 68 having dimensions and having locations adapted to the dimensions of said cut-aways 64. In the embodiment in fig. 4 the fixing protrusions 68 are in the form of the a flexible engagement clip 44 arranged on the side of the first element.

DK 2016 00779 A1

In use of the arrangement 200 the rail is first arranged around a rung 20 by letting the rung be accommodated in the u-shaped part of the rail. Next, the first part 4 and the second part 6 of the device 100 are attached and fixed to each other by means of the first set of engagement means 28 arranged at an edge 48 of the first element 4 of the device and the second set of engagement means 30 arranged at an edge 50 of the second element 6.

This situation is illustrated in fig. 5.

Fig. 5 shows in a perspective view an arrangement of fig. 4 in a partly assembled state. In fig.

In this partly assembled arrangement a worker may easily arrange the one or more cables 2 onto the front surface 10 of the second element and subsequently arrange the top part 8 on top of the second element and the one or more cables 2. Finally, the bolts 36 and nuts 38 are used to fix the first part 4, the second part 6, the one or more cables 2, the rung 20 and the rail 52 to each other.

This situation is illustrated in fig. 6 which shows in a perspective view the arrangement 200 of fig. 4 in a fully assembled state.

Fig. 7 shows in a perspective view a system 300 according to the third aspect of the present invention in a disassembled state.

The system 300 comprises a cable fastening device 100 according to the first aspect of the present invention in combination with kit configured for forming a ladder structure 70.

The device 100 of the system 300 illustrated in fig. 7 is identical to the device 100 illustrated in fig. 4.

Generally, the ladder structure 70 comprises two or more rungs. However, for the sake of simplicity, the ladder structure illustrated in fig. 7 comprises one rung 20 and a first beam 72 and a second beam 74.

The rung is having a first axial end 76 and a second axial end 78. The first axial end of the rung is configured for being attached to said first beam; and the second axial end of the rung is configured for being attached to the second beam; thereby forming a ladder structure.

DK 2016 00779 A1

The fastening of the rung 20 to the first beam and the second beam is brought about by using bolts 80 and nuts 82. However, the first beam and the second beam may also be fastened to the rungs by welding or by other means.

As an alternative, the system 300 of the third aspect of the present invention the kit may already be assembled into a ladder structure.

As it can easily be acknowledged the rung 20 illustrated in fig. 7 is in the form of the rail 52 as illustrated in fig. 4, 5 and 6.

Upon using the system 300 shown in fig. 7 for fastening one or more cables 2 to a structure, the rung 20,52 is first mounted to the first beam 72 and the second beam 74 of the kit.

Next, the first element 4 and the second element 6 are arranged around the rung 20.

Subsequently, the first element 4 and the second element 6 are brought into engagement with each other by means of the first set of engagement means 28,44 and the second set of engagement means 30,46 arranged at edges 48,50 of the first element 4 and the second element 6, respectively.

This situation is illustrated in fig. 8.

The remainder of the mounting procedure follows that described above with reference to fig. 5 and 6.

Accordingly, fig. 8 shows in a perspective view the system of fig. 7 in a partly assembled state and fig. 9 shows in a perspective view the system of fig. 7 in a fully assembled state.

DK 2016 00779 A1

List of reference numerals

Cable

First element of cable fastening device

Second element of cable fastening device

8 Top part of cable fastening device

Front surface of first element of cable fastening device

Rear surface of first element of cable fastening device

Front surface of second element of cable fastening device

Rear surface of second element of cable fastening device

18 Rung channel of first element of cable fastening device

18’ Rung channel of second element of cable fastening device

Rung

Front surface of top part of cable fastening device

Rear surface of top part of cable fastening device

26 Cable channel of top part of cable fastening device

26’ Cable channel of second element of cable fastening device

First set of engagement means in first element of cable fastening device

Second set of engagement means in second element of cable fastening device

Fastening means for fastening top part

34 Through-going hole

Bolt

Nut

Flexible engagement clip engagement means

DK 2016 00779 A1

Recess of engagement means

Edge of first element

Edge of second element

Rail

Elongate element of rail

Middle U-shaped profile of rail

First flap section of rail

Second flap section of rail

Through-going hole in flap section of rail

Cut-away of flap section of rail

Rim of rail

Fixing protrusion of element or of part of cable fastening device

Ladder structure

First beam of ladder structure

Second beam of ladder structure

First axial end

Second axial end

Bolt of ladder structure

Nut of ladder structure

Cable fastening device

Arrangement

System

DK 2016 00779 A1

Claims

Claims

1. A cable fastening device (100) for fastening one or more cables (
2) to a structure, said cable fastening device comprises a first element (4);

5 a second element (6);

a top part (8);

-wherein the first element (4) comprises a front surface (10) and a rear surface (12);

-wherein the second element (6) comprises a front surface (14) and a rear surface (16);

-wherein said front surface (10) of said first element (4) comprises a rung channel (18) for at

10 least partly accommodating a rung (20) and/or wherein said rear surface (16) of said second element (6) comprises a rung channel (18) for at least partly accommodating a rung (20);

wherein said top part (8) comprises a front surface (22) and a rear surface (24), wherein said rear surface of said top part comprises a cable channel (26) for at least partly accommodating one or more cables; and/or wherein said front surface (14) of said second element (6)

15 comprises a cable channel (26’) for at least partly accommodating one or more cables;

characterized in that said first element (4) comprises a first set of engagement means (28) and in that said second element comprises a second set of engagement means (30), wherein said first set of engagement means and said second set of engagement means are configured to be able to enter into a locking engagement with each other.

20 2. A cable fastening device (100) according to claim 1, wherein said first element (4) and said top part (8) comprises fastening means (32) for allowing fastening said top part to said second element and/or to said first element.
3. A cable fastening device (100) according to claim 2, wherein said fastening means (32) comprises one or more through-going holes (34) in said second element (6) and said top part

25 (8) and optionally also in said first element (4) for allowing fastening said top part to said second element and/or to said first element; and wherein said device furthermore comprises one or more sets of bolts (36) and nuts (38).

DK 2016 00779 A1
4. A cable fastening device (100) according to claim 3, wherein one or more of said throughgoing holes in said first element (4) or in said second element (6) of said fastening means is being configured for accommodating a nut (38), thus being embedded in said through-going hole (34).
5 5. A cable fastening device (100) according to any of the claims 1-4, wherein the orientation of the rung channel (18,18’) in the first element and/or in the second element is perpendicular to the orientation of the cable channel (26,26’) in said second element and/or in said top part.
6. A cable fastening device (100) according to any of the claims 1-5, wherein said second element (6) comprises a third set of engagement means and wherein said top part (8)

10 comprises a fourth set of engagement means, wherein said third set of engagement means and said fourth set of engagement means are configured to be able to enter into a locking engagement with each other.
7. A cable fastening device (100) according to any of the claims 1-6, wherein said first set of engagement means (28) and said second set of engagement means (30) are configured to be

15 able to enter into a releasable locking engagement with each other;

and/or wherein said third set of engagement means and said fourth set of engagement means are configured to be able to enter into a releasable locking engagement with each other.
8. A cable fastening device (100) according to claim 7, wherein said first set of engagement

20 means comprises one or more flexible engagement clips, and wherein said second set of engagement means comprises one or more recesses, or vice versa; wherein each said flexible engagement clip is configured to enter into releasable engagement with one of said recesses.
9. A cable fastening device (100) according to claim 7 or 8, wherein said third set of engagement means (28) comprises one or more flexible engagement clips (44), and wherein

25 said fourth set of engagement means comprises one or more recesses (46), or vice versa; wherein each said flexible engagement clip (44) is configured to enter into releasable engagement with one of said recesses (46).
10. A cable fastening device (100) according to any of the preceding claims, wherein said first set of engagement means (28) comprises two engagement means arranged at opposite edges

DK 2016 00779 A1 (48) of said first element (4); and wherein said second set of engagement means (30) comprises two engagement means arranged at opposite edges (50) of said second element.
11. A cable fastening device (100) according to any of the claims 6-10, wherein said third set of engagement means comprises two engagement means arranged at opposite edges of

5 said second element; and wherein said fourth set of engagement means comprises two engagement means arranged at opposite edges of said top part.
12. A cable fastening device (100) according to claim 3, wherein the nuts (38) are being embedded in through-going holes (34) in the first element 4, such as at a front surface (10) or at a rear surface (12) thereof.

10
13. A cable fastening device (100) according to claim 3, wherein the bolts (36) have been preassembled to the top part (8) by being inserted into the through-going holes (34) from the front surface (22) thereof and wherein said bolts are being prevented from falling out by being provided with a retention means, such as an O-ring, such as a polymer O-ring.
14. A cable fastening device (100) according to any of the claims 1-13, wherein the first
15 element (4), the second element (6) and/or the top part (8) independently is being made of a polymer, such as a fiber-reinforced polymer, such as by molding; or independently is being made from a metal, such as aluminum, such as by extrusion and milling.

15. An arrangement (200) for fastening one or more cables to a structure, said system comprises one or more cable fastening devices (100) according to any of the claims 1 - 14 in

20 combination with one or more rails (52);

wherein each said rail (52) comprises an elongate element (54) having a U-shaped middle profile (56) and additionally comprising a first flap section (58) and a second flap section (60); said first flap section and said second flap section extend in opposite directions from the ends of the U-shaped middle profile so as to define a common plane.

25
16. An arrangement (200) according to claim 15, wherein the first and the second flap sections (58,60) comprises a plurality of through-going holes (62).
17. An arrangement (200) according to claim 15 or 16, wherein the first and the second flap sections (58,60) comprises a number of cut-aways (64) at a rim (66) thereof; and wherein at least one element or part (4,6,8) of each said one or more cable fastening devices (100)

30 comprises one or more fixing protrusions (68), wherein the dimensions and the location of

DK 2016 00779 A1 said one or more fixing protrusions are adapted to the dimensions of said cut-aways (64), thereby preventing any lateral displacement of said cable fastening devices (100) along said rail (52).
18. An arrangement (200) according to any of the claims 15 - 17, wherein said one or more 5 rails are being made from metal or an alloy, such as steel or aluminum.
19. A system (300) for fastening one or more cables (2) to a structure, wherein said system comprises one or more cable fastening devices (100) according to any of the claims 1 - 14 in combination with kit configured for forming a ladder structure (70);

wherein said ladder structure (70) comprises two or more rungs and a first beam (72) and a 10 second beam (74), wherein each said rung is having a first axial end (76) and a second axial end (78), wherein the first axial end of each rung is configured for being attached to said first beam; and wherein the second axial end of each rung is configured for being attached to said second beam; thereby forming a ladder structure.
20. A system (300) according to claim 19, wherein said kit configured for forming a ladder 15 structure is being assembled into a ladder structure (70).
21. A system (300) according to claim 19 or 20, wherein said two or more rungs are fastened to said first beam and said second beam by welding or by bolts (80) and nuts (82).
22. A system (300) according to any of the claims 19-21, wherein said two or more rungs (20) are as defined in respect of the rail (52) as defined in any of the claims 15 - 18.

20
23. A system (300) according to any of the claims 19 - 22, wherein said two or more rungs and/or said beam(s) are being made from metal or an alloy, such as steel or aluminum.
24. Use of a cable fastening device (100) according to any of the claims 1 - 14 or of an arrangement (200) according to any of the claims 15 - 18 or of a system (300) according to any of the claims 19-23 for fastening one or more cables (2) to a structure.

^DK 2016 00779 A1

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