• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    There is disclosed a cable tray (2) for feeding cables and of the type made in wire material having a plurality of parallel U-bending strands (4) and attached longitudinal strands (6) such that the U-bending strands form a bottom (8) and a first as well as a second sidewall (10,12) for the cable tray. The bottom (8) is narrower than the side walls (10, 12) are high, so that the cables (14) can be stacked one above the other in the cable tray. The first sidewall (10) is made with a waveform with wave valves (16) located close to or in contact with the second side wall (12) and wave peaks (18) between the wave valleys (16). The wavy first sidewall together with the second sidewall (12) forms space (20) for receiving the cables (14). The distance between the cables ensures a cleaning-friendly distance between the cables (14).
    公开号:DK201970004A1
    申请号:DKP201970004
    申请日:2019-01-03
    公开日:2019-08-05
    发明作者:Hviid Gasbjerg Frank
    申请人:Siltec A/S；
    IPC主号:
    专利说明:

    Cable tray
    FIELD OF THE INVENTION
    BACKGROUND OF THE INVENTION The present invention relates to a cable tray for conveying cables and of the type made in wire material having a plurality of parallel U-bent wires and attached longitudinal wires, such that the U-bent wires form a base and a first as well as a second one. side wall of the cable tray, and where the bottom is narrower than the side walls are high, so that the cables can be stacked on top of each other in the cable tray.
    By cables as used in the present application is meant elongated elements which may be supportive to various media and or signals. Thus, cables may comprise hoses for liquid or gas media, as well as electrical and signal cables.
    BACKGROUND OF THE INVENTION
    Cable trays are rectangular modules comprising a bottom and two side walls at the longitudinal sides of the bottom. The plane of the side walls is usually substantially perpendicular to the plane of the floor, but other angles between the bottom and side walls are also possible.
    Cable trays are known which are made of wire material with U-bent threads and attached longitudinal threads at the bottom and sides.
    The cable trays are fastened to machines, buildings or other substrates where there is a need for an established cable routing. Cable trays are mounted on the substrate and most often with several cable trays in succession. Mounting is done by means of brackets, brackets or the like, which are attached to the substrate.
    When vertically mounted on a vertical substrate, for example a wall or machine stand, the side walls of the cable trays in the narrow cable trays will extend substantially parallel to the plane of the substrate. Narrow cable trays can also be mounted on largely vertical or sloping surfaces, for example by sloping walls or ceilings.
    DK 2019 70004 A1
    Cable trays will often have a relatively wide bottom and relatively lower side walls. In such wide cable trays, the cables are arranged side by side and optionally in several layers. The cables are typically so small in diameter that up to 5-10 cables can be placed side by side.
    Narrow cable trays are also known, the bottom being relatively narrow and the side walls being relatively high. In such cable trays, cables are typically arranged in layers on top of one another with few or no cables placed side by side. The cables in such cable trays typically have a diameter slightly smaller than the distance between the two side walls, so that two cables cannot typically be placed side by side.
    The cables can either be loosely placed in the cable trays or they can be attached to the cable tray with commonly used fasteners, for example fittings, cable strips or the like for cables, hoses and / or pipes.
    Thus, in wire trays it is easy to attach the cables at appropriate intervals to selected threads in the cable tray.
    Since it takes time for mounting and replacing cables to attach them to the cable trays, it is wished that they can be loosely placed in the cable trays. However, this is difficult with cable trays in places where cleaning is required. Cleaning of cable trays and cables placed therein is typically done by high-pressure rinsing. This causes the cables to be disrupted and even squeezed out of the cable trays if they are not attached to the cable trays.
    For cleaning purposes, it is preferable in some installations to use narrow cable trays, as dust collection is minimized when the cables are stacked on top of one another.
    When the cable trays are mounted with the cables stacked on top of each other in the vertical direction, it is normal to use narrow cable trays. If you want the cables to appear orderly with location and without the risk of being squeezed out of the cable trays during cleaning, it is necessary to fasten the cables to the tray to ensure that they remain in the cable trays.
    DK 2019 70004 A1
    DK178644 B9 discloses a cable tray for feeding cables and hoses of the type made of wire material with a number of parallel U-bent wires and attached longitudinal wires to form a bottom and side walls for the cable tray. The cables can be stacked on top of each other in the cable tray. Although this cable tray offers the benefits of easy and efficient cleaning, the cables may be in contact with each other as all are placed inside a space formed between the U-shaped wires.
    From US 5,893,539 a cable tray of the type mentioned above is known. In this type of cable tray, wires which are bent in a bow shape are used. Thus, these wires cannot easily be bent for placement of cables or hoses in the cable tray.
    DK 2017 70742 discloses a cable tray of the type mentioned at the outset, where the curved wire sections are attached directly or indirectly to the U-curved wires, which are mounted at a distance to ensure a clean-friendly distance between the cables. This construction ensures that the cables are not in contact with each other. However, the construction is time-consuming to manufacture because of the assembly of the bent wire sections to the U-bent threads. These are typically mounted by welding.
    The object of the invention
    It is an object of the invention to provide a cable tray where the individual cables are located at a distance, thereby making cleaning between cables possible and which are also easy to manufacture.
    Description of the Invention
    The object of the invention can be achieved with a cable tray of the type mentioned initially, characterized in that the first sidewall is made with a waveform with wave valves located close to or in contact with the second sidewall and wave peaks between the wave valleys and that the wave-shaped first side wall along with the other side wall provides space for the cables to receive a cleaning-friendly distance between the cables.
    DK 2019 70004 A1
    By wave valley is meant the wire section of the first sidewall which is closest to the second sidewall. Thus, it is not a single point, but an area around the point that can be considered the peak of the wave valley. Similarly, by wavy top is meant the wire section of the first sidewall that is farthest from the second sidewall. Thus, this is not a single point, but an area around the point that can be considered the peak of the wave peak
    Hereby, cables or hoses can be fixed in a cable tray by means of the corrugated first side wall, which together with the second side wall forms several juxtaposed spaces which ensure that the cables are held at a mutual distance from one another . A well-defined cabling is achieved.
    One or more cables may be provided in each of the separate compartments.
    The cable tray can be used in any embodiment in combination with cables. The current embodiment will then be adapted to the current shape of the cables used.
    The distance between and the shape of the wave valleys and the wave peaks can be adapted to the cables. The distance may be greater to create distance between the cables. This prevents the cables from being pinched. Alternatively, greater distance may provide a larger space where more or larger cables can be accommodated.
    Preferably, the distance between the apex of the wave valley and the second side wall may be less than the diameter of the cables. Thus, a stable retention of the cables is achieved in the space in which they are located. During high-pressure cleaning, the cables will not be able to remove themselves from the space in which they are mounted.
    The distance between the cables is well defined, given the dimensions of the waveform.
    At least the wire material used to form the first wall may advantageously be resilient. Typically, the first and second sidewalls as well as the bottom will be formed of one length of wire material that bends to the desired shape.
    DK 2019 70004 A1
    The transverse U-bent threads are typically attached to the longitudinal threads by welding. However, it is also possible to make the cable tray in wire of form-stable plastic, which are soldered, welded or glued together.
    The advantage of placing the cables at a distance in the cable tray is that it is possible to clean the cables in the cable tray, for example, by, for example, high-pressure rinsing with either water or steam or chemical cleaners being able to clean the surface of the cables. At the same time, the cable tray is formed of threads, which are similarly cleaned when doing the actual cleaning of the cable tray. This is extremely important if the cable tray is to be used, for example, in the food industry or in the chemical industry, including the biochemical industry. Other places where it may be equally interesting with very careful cleaning are in clean room production, which is widely used, for example, in the production of semiconductors.
    With the special design of a cable tray, where the cables are secured at a distance from each other, a better heat conduction away from the cables is also obtained, in the case of power cables having a certain power output. Similarly, distance between the cables can mean a reduction of possible noise transmission between cables, where in some cables a relatively large power transmission may occur, while other cables are pure signal cables.
    If cables are very close, a capacitive transmission of noise from different cable types may occur, which may to some extent interfere with any signal communication. Precisely within production plants, where production has to take into account sterility, there will in many cases be a very large number of signal cables to transmit signals for monitoring and control of process plants. Thus, by ensuring a physical distance between the individual cables, there will be a reduction in the capacitive transmission of any noise between signal cables and power cables used for power regulation of motors, pumps or valves.
    The cable tray is usually made of metal wire, including in particular corrosion resistant materials of, for example, steel, steel alloys such as AISI 316 or 304 steel types, and / or heat or galvanized steel, aluminum, aluminum alloys or similar cleaning friendly materials. This provides cleaning-friendly cable trays, and then cable trays
    DK 2019 70004 A1 is of wire, it is also possible to clean the cables mounted in the trays without having to separate the cable trays. This makes it possible to use the cable trays in environments where frequent cleaning is necessary, for example, due to regulatory requirements, such as in the pharmaceutical, food, including slaughterhouses.
    The wires in the cable tray are soldered or welded together at the contact points where two wires intersect. However, it is also possible to make the cable tray in wire of form-stable plastic, which are soldered, welded or glued together.
    The threads used have a diameter between 2 and 25 mm. Typically between 3 and 5 mm.
    The diameter of the wires is typically between 2 and 25 mm and depends on the size of the cable tray and the desired carrying capacity of the pipe / hose or cable tray and thus the weight that the cable tray must be able to carry. Generally, the longitudinal strands will have a larger diameter than the U-bent strands.
    However, it is important that the yarns used to form the sidewalls have a thickness and material properties that allow easy bending. Such bending is done with the help of tools.
    A suitable material for the U-bent threads to form the sidewall is stainless steel wire. These threads can have Ø3 mm and a tensile strength of 840-900 N / mm 2 . Such thread can be bent manually without the use of tools and will be shape stable in a bent state. Along with such threads, it is preferred to use longitudinal threads having a larger diameter, typically Ø4 mm.
    In making a cable tray, a wire blank for fabricating the sidewalls and the bottom can be placed in a tool. Thereafter, in a simple operation, a pivot and a wave bending of the wire can be made so that the two side walls are positioned opposite each other while an end section of the second side wall is bent towards the first side wall. The bottom of the U-bent wire may be formed as a waveform or be formed as a rectilinear portion connected via a curved portion to each of the side walls.
    DK 2019 70004 A1
    The formed U-bent threads can, in known manner, be placed in a fixture where they are attached to the longitudinal threads. This is preferably done by welding in the contact points.
    According to a further embodiment of the invention, the longitudinal strands are fixed externally to the U-bent strands. In this way, it can be achieved that the outer longitudinal threads will be in contact with any wall where the cable tray is to be hung. This means that the cable tray can be fastened by means of fasteners attached to the longitudinal threads, whereby effective fastening of the cable tray is achieved.
    According to a further embodiment, the cable tray according to the invention is characterized in that the thread in the second sidewall is longer than the thread in the first sidewall, that a thread section extending past the extension of the thread in the first sidewall is bent towards and past an end section. of said wire in the first sidewall of the cable tray and that at said wire section of the wire in the second sidewall of the cable tray a longitudinal thread is attached.
    Hereby, the first sidewall of the cable tray, due to the resilient ability of the wire, can be swung in behind the longitudinal wire when the cables are placed in the cable tray. The end section of the first sidewall will then abut against the longitudinal wire so that the cable tray is kept closed. Said end section of the wire in the first sidewall of the cable tray will thus be in use in a position between the second sidewall and the longitudinal wire at said end section of the wire in the first sidewall of the cable tray.
    According to a further embodiment, the cable tray according to the invention is characterized in that at least one wave valley from the first sidewall is placed in contact with the second sidewall and that an attachment to the wire in the second sidewall is established.
    The fastening will be established after cables are placed in the cable tray. The fastening may be established as a spot weld, a spot solder with a strip, or otherwise which secures the wires of the two side walls to each other at at least one point. This creates stability in the cable tray and ensures that the cable tray is not opened unintentionally by swinging the two side walls away from each other. Thus, there is a risk that the cables can be moved between parallel spaces in the cable tray or even removed from the cable tray.
    DK 2019 70004 A1
    According to a further embodiment, the cable tray according to the invention is characterized in that the waveform of the first sidewall is established such that the spaces formed between the first sidewall and the second sidewall are larger than other compartments formed between the first sidewall and a line. , which connects the apexes of the wave peaks.
    According to a further embodiment, the cable tray according to the invention is characterized in that the parallel U-bent wires are attached only to the longitudinal wires at the wire sections used to form the second sidewall of the cable tray.
    This allows the other sidewalls to be individually pivoted between an open and closed position, which can be an advantage if individual cables are needed in the cable tray.
    However, it is also possible that the cable tray is delivered in a closed condition so that the corrugated first side wall is fixed relative to the second side wall. Since the parallel U-folded wires are spaced apart on the longitudinal wires, cables can only be pulled through the spaces formed in the cable tray. This can be done both by cable laying and by possible replacement of cables.
    The parallel U-bent threads may be provided with a spacing of between 60 and 100 mm. The distance is preferably between 70 and 90 mm, and typically approx. 80 mm.
    According to a further embodiment, the cable tray is characterized in that the height of a cable tray is between 70 and 120 mm. These are appropriate dimensions for a large proportion of cable trays used for conveying signal and power cables.
    drawing Description
    The invention will now be explained in more detail with reference to the accompanying drawing, in which
    FIG. 1 is a perspective view of a cable tray according to the invention,
    FIG. 2 shows a sketch of the one shown in FIG. 1 shows the cable tray shown from the end and with cables shown in the cable tray, and
    DK 2019 70004 A1
    FIG. 3 shows a sketch similar to FIG. 2, of a further embodiment of a cable tray according to the invention.
    DETAILED DESCRIPTION OF THE INVENTION The description of the figures will identify identical or similar elements with the same reference numeral in the various figures. Thus, no explanation will be given for all the details related to each figure / embodiment.
    reference signs
    Cable tray
    U-bend threads
    Longitudinal threads
    Bottom
    First Sidewall
    Second sidewall
    Cable
    trough
    crest
    Room
    Thread section of second sidewall
    End section of thread in first side wall
    Fixing
    Top of the wave peak
    Peak of wave valley
    Other rooms
    Line through vertices of the wave peaks
    FIG. 1 shows a mounting element according to the invention, and FIG. 2 is an end view of this cable tray.
    FIG. 1 shows a sketch of a cable tray 2 according to the invention. The cable tray is made by attaching a plurality of U-bent strands 4 to a series of parallel longitudinal strands 6. The U-bent strands form a bottom 8 as well as a first side wall 10 and a second side.
    DK 2019 70004 A1 wall 12 for the cable tray. The bottom 8 will be narrower than the side walls 10, 12, so that the cables can be stacked on top of each other in the cable tray without touching each other.
    The spacing between the cables is created by the first sidewall 10 being made with a waveform with wave valves 16 located close to or in contact with the second sidewall 12 and interposed with wave peaks 18. The corrugated first sidewall 10 will together with the second sidewall 12 form spaces for accommodating the cables 14 with a spacing which ensures easy and efficient cleaning.
    The cable tray is made in that U-bent wires are juxtaposed and secured by welding to the longitudinal wires 16, as illustrated in FIG. 1. In FIG. 1 only a section of a cable tray is shown. The length of the cable tray may vary and be formed in sections of up to 8-10 meters.
    The length of a cable tray section will depend on the intended use.
    As seen in FIG. 2, the longitudinal threads 6 are fixed externally to the U-bent threads 4.
    The cable tray will be made of stainless steel wires, the wire diameter of the Unbonded wires is 3 mm. The thread diameter for the longitudinal threads will be 4 mm.
    As is particularly evident in FIG. 2, the second sidewall 12 has a longer extension such that a wire section 22 extends beyond the extension of the wires of the first sidewall 10. This wire section 22 is bent towards an end section 24 of the first sidewall of the cable tray 10. At the end section 24, the wire attached to a longitudinal thread 6 with an outer end of the thread section 22. Hereby the first sidewall 12 can be pivoted and elongated by elastic deformation past the longitudinal thread 6 so that the cable tray appears in a closed state.
    Alternatively, it is possible to omit the longitudinal thread 6. Alternatively, a secure closure of the cable tray may be established by providing a fastening 26 between the first sidewall and the second sidewall.
    DK 2019 70004 A1
    In the illustrated situation, only a simple attachment 26 is shown at apex 30 of a wave valley 16 and the opposite second side wall 12. A fixation may be provided between each wave valley and the opposite side wall or at a different wave valley than the one shown.
    When an engagement between the end section 24 and the longitudinal thread 6 is used, the thread of the first sidewall 10 will be between the second sidewall 12 and the longitudinal thread 6. Thus, the longitudinal thread 6 retains the first sidewall and prevents that it is swiveled out and allows an opening of the cable tray and thus a risk of the cables being placed in contact with each other.
    It is possible to use a combination of one or more fasteners 26 and the engagement between the end section 24 and the longitudinal thread 6.
    FIG. 3 illustrates a principle sketch similar to FIG. 2 through another embodiment. Here, it is seen that the waveform is provided so that the spaces 20 formed between the wave-shaped first side wall and the second side wall 12 are larger than the spaces 32 which will be formed between the first wave-shaped side wall 10 and a line 34 connecting the peaks of the wave peaks 18.
    This ensures as much space as possible for the reception of cables in relation to the total volume occupied by a cable tray.
    Common to the embodiments shown in Figures 1-3, the longitudinal strands 6 will be attached only to the portion of the U-bent strands used to form the second sidewall 12. The second sidewall 12 also includes the folded thread section 22.
    Thus, there will be no mutual retention between parallel wire sections used to form the first sidewall 10. This makes it possible to open and close the cable tray partially by opening only one or more of the U-bent wires. This can be advantageous when replacing cables.
    DK 2019 70004 A1
    The cable tray can be used by being provided with the mold shown in FIG. 2 and 3 so that cables are pulled through a series of aligned U-bent wires. Alternatively, the cable tray can be supplied as an open cable tray where the cables are inserted and closed as the compartments are filled.
    Finally, it should be noted that Figures 2 and 3 show the U-bends strands of the cable trays with a horizontal orientation.
    However, it will typically be arranged with a vertical orientation such that the bottom 8 10 will face downwards and the side walls 10, 12 will be oriented vertically upwards from the bottom 8.
    权利要求:
    Claims (10)
    [1]
    patent claims
    Cable tray (2) for feeding cables and of the type made of wire material having a plurality of parallel U-bent strands (4) and attached longitudinal strands (6) such that the U-bent strands form a bottom (8) and a first as well as a second sidewall (10,12) of the cable tray, the bottom (8) being narrower than the sidewalls (10,12) being high, so that the cables (14) can be stacked one above the other in the cable tray, characterized in that the first sidewall (10) is formed with a waveform with wave valves (16) located close to or in contact with the second sidewall (12) and wave peaks (18) between the wave valves (16) and that the waveformed first sidewall together with the second side wall (12), compartment (20) forms for accommodating the cables (14) to ensure a cleaning-friendly distance between the cables (14).
    [2]
    Cable tray according to claim 1, characterized in that the U-bent wires (4) are secured by welding to the longitudinal wires (6).
    [3]
    Cable tray according to claim 1 or 2, characterized in that the longitudinal wires (6) are fixed externally to the U-bent wires (4).
    [4]
    Cable tray according to any one of claims 1 to 3, characterized in that the wires are made of stainless steel.
    [5]
    Cable tray according to claim 4, characterized in that the diameter of the wire is 3 mm and that the wire has a tensile strength of 840-900 N / mm 2 .
    [6]
    Cable tray according to any one of the preceding claims, characterized in that the wire in the second side wall (12) is longer than the wire in the first side wall (10), that a wire section (22) extending beyond the extension of the wire in the first sidewall (10) is bent towards and past an end section (24) of the wire in the first sidewall (10) of the cable tray, and that a wire section (22) of the wire in the second sidewall (12) of the cable tray is secured longitudinal thread (6).
    DK 2019 70004 A1
    [7]
    Cable tray according to claim 6, characterized in that said end section (24) of the wire in the first side wall (10) of the cable tray in use is in a position between the second side wall (12) and the longitudinal wire (6) at said end section ( 24) of the wire in the first sidewall of the cable tray (10).
    [8]
    Cable tray according to any one of the preceding claims, characterized in that at least one wave valley (16) from the first side wall (10) is placed in contact with the second side wall (12) and a fastening (26) is established. ) to the thread in the second side wall (12).
    [9]
    Cable tray according to any one of the preceding claims, characterized in that the waveform of the first sidewall is established such that the spaces (20) formed between the first sidewall (10) and the second sidewall (12) , greater is a second space (32) formed between the first side wall (10) and a line (34) connecting the apex points (28) of the wave peaks (18).
    [10]
    Cable tray according to any one of the preceding claims, characterized in that the parallel U-bent wires (4) are attached only to the longitudinal wires (6) at the wire sections used to form the second side wall of the cable tray (12). ).
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    同族专利:
    公开号 | 公开日
    DK179860B1|2019-08-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2019-08-05| PAT| Application published|Effective date: 20190805 |
    2019-08-05| PME| Patent granted|Effective date: 20190805 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKPA201970004A|DK179860B1|2019-01-03|2019-01-03|Cable tray|DKPA201970004A| DK179860B1|2019-01-03|2019-01-03|Cable tray|
    PCT/DK2019/050422| WO2020141008A1|2019-01-03|2019-12-20|Cable tray|
    US17/418,639| US20220069556A1|2019-01-03|2019-12-20|Cable tray|
    EP19907555.7A| EP3906598A1|2019-01-03|2019-12-20|Cable tray|
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