REQUIREMENT FOR AN ENERGY CHAIN

Description

[0001] The invention relates to a support for an energy chain and to a device and an arrangement with such a support.

[0002] Cable guide chains are used to protect and guide lines such as cables or hoses. Cable guide chains can also be referred to as cable guidance devices. A cable guide chain can be composed of links or be constructed in one piece. It is common practice to partially support cable guide chains with a support. Such a support can, for example, be arranged so that the upper run of the cable guide chain can be placed on the support. When the cable guide chain is moved, the upper run moves along the support. The resulting friction can be reduced with rollers. With conventional supports, temperature changes regularly lead to stresses that can damage the supports or their holders.

[0003] WO 2016 / 015 942 A1 discloses a guide device for energy chains that has all the features of the preamble of claim 1. The guide device is composed of individual sections. The guide device has guide rails for an upper strand of an energy chain. The guide rails are connected to each other via a tongue and groove connection.

[0004] The object of the present invention is to provide, based on the described prior art, a support that can withstand temperature changes particularly well. Furthermore, a corresponding device and arrangement are to be presented.

[0005] These objects are achieved with a support, a device, and an arrangement according to the independent claims. Further advantageous embodiments are specified in the dependent claims. The features presented in the claims and in the description can be combined with one another in any technologically expedient manner.

[0006] According to the invention, a support for a cable drag chain is presented. The support is divided longitudinally into a plurality of sections. The sections each have at least one tooth at their ends. Any two adjacent sections are interlocked via the teeth.

[0007] The support is preferably used in conjunction with a cable guide chain. The design of the cable guide chain is not important. In particular, the cable guide chain can be composed of links or be constructed in one piece. The cable guide chain can also be referred to as a cable guide device.

[0008] A part of an energy guide chain can be placed onto the support. The support is preferably designed as a rolling support. In this case, the support is intended for rollers of the energy guide chain to roll on the rolling support. This allows the part of the energy guide chain, in particular an upper run of the energy guide chain, to be moved along the support. Alternatively, it is preferred that the support is designed as a sliding support. In this case, the support is intended for part of the energy guide chain to slide on the support, in particular via sliding shoes. The energy guide chain can also slide on the support without sliding shoes. The support can also be a rolling or sliding support. In this case, the support is intended for rollers of the energy guide chain to roll on the rolling support or for part of the energy guide chain to slide on the support, in particular via sliding shoes.

[0009] The support is divided longitudinally into a plurality of sections. The longitudinal direction of the support is the direction in which the energy chain can be moved over the support. If the energy chain has rollers, the longitudinal direction is parallel to the running direction of the rollers. The energy chain is preferably divided into 5 to 10 sections. The sections are preferably identical to one another. The individual sections are preferably each formed as a single piece.

[0010] By dividing the support into sections, thermal expansion can be compensated for when the temperature changes. This applies in particular when the support is held on a holder made of a different material than the support. The described embodiment is particularly well suited for this case, so that it is preferred that the support is used with a holder made of a different material than the support. For example, the support can be made of plastic and held on an aluminum holder. The holder can in particular be designed as a profile, in particular as an aluminum profile. The cross-section of the holder is preferably constant over the longitudinal direction. Several of the sections of the support can be held on the same holder.Since plastic and aluminum have different thermal expansion coefficients, the sections can shift relative to each other due to thermal expansion of the holder. Such shifting is possible due to the division of the support into sections. This prevents stresses in the support that could damage the support and / or the holder.

[0011] It is not necessary for the support to be held on the holder so that it can move longitudinally. It is also not necessary for the distance between adjacent sections to actually change during operation. Dividing the support into sections simply creates the possibility of compensating for any movement between adjacent sections relative to one another. This movement can occur due to thermal expansion of the holder even if the sections are each firmly held on the holder. In particular, when the support is used at a constant temperature, the positions of the sections relative to one another can remain unchanged. Nevertheless, it is preferred that the sections be held on the holder so that they can move longitudinally. This allows temperature changes to be compensated for particularly well.

[0012] The sections are preferably dimensioned and held on the holder such that the sections are arranged at a medium distance from one another. The medium temperature lies midway between the maximum and minimum temperatures for which the support is designed and configured. The medium distance lies midway between a maximum and a minimum distance for which the support is designed and configured. This design allows temperature deviations from the medium temperature, both upward and downward, to be compensated for. At the medium temperature, an expansion joint is therefore formed between adjacent sections. This expansion joint can become larger or smaller as the temperature changes.

[0013] If the cable chain moves across expansion joints between two sections, the problem is always that noise and / or vibrations will develop. For example, if a roller rolls from one section to the next, the roller can sink into the expansion joint. This can generate noise and / or vibrations. This can cause increased wear or even damage to the cable chain, the support, and its holder. Even if the cable chain slides across the support, expansion joints can cause noise or jerky operation.

[0014] With the device described, noise and / or vibrations can be avoided or at least reduced. For this purpose, the sections each have at least one tooth at their ends, with two adjacent sections being interlocked by the teeth. This refers to the two respective ends of the sections in the longitudinal direction. These are the ends at which the adjacent sections border one another and between which - unless the temperature reaches a corresponding extreme value - the expansion joint is formed. The fact that the teeth are interlocked means that the teeth of the adjacent sections at least partially overlap in the longitudinal direction. The teeth therefore mesh with one another. This means that the at least one tooth of a first section engages in a gap next to the at least one tooth of a second section.It is preferred that the sections each have a plurality of teeth at their ends. In this case, a tooth of the first section can engage in a gap between two adjacent teeth of the second section.

[0015] The toothing of the sections can, in particular, prevent rollers from sinking into the expansion joint. This is especially true when a suitable roller is used. A suitable roller has a running surface whose extent transverse to the longitudinal direction is greater than the greatest extent of the expansion joint transverse to the longitudinal direction. The extent of the expansion joint transverse to the longitudinal direction can vary at different points in the longitudinal direction. Particularly preferably, the roller has an extent transverse to the longitudinal direction such that the roller can be in contact with at least one of the sections at any position in the longitudinal direction. The energy chain is preferably designed such that, when used as intended, the roller is in contact with at least one of the sections at any position in the longitudinal direction. Due to the teeth, the roller can then not sink into the expansion joint. The roller is therefore initially in contact with a first section of the support.When the roller reaches the transition to the next section, only the part of the roller that is on the teeth of the first section is in contact with the support. The remaining part of the roller crosses the expansion joint and then comes into contact with the next section of the support. Only then does the rest of the roller also cross the expansion joint.

[0016] The design of the expansion joint with the teeth also has the advantage that the sections can be manufactured and installed with particularly large tolerances. If the expansion joint were straight and perpendicular to the longitudinal direction, the sinking of rollers into the expansion joint could only be reduced by making the expansion joint as small as possible. The smaller the expansion joint, the more precisely the sections would have to be dimensioned and arranged. A small expansion joint also has the disadvantage that it can only compensate for comparatively small temperature changes. With the described support, however, it is sufficient for the adjacent sections to be interlocked via the teeth. The size of the expansion joint between the teeth is much less important than the size of a straight expansion joint running perpendicular to the longitudinal direction.

[0017] The support can have a respective edge section at both of its ends in the longitudinal direction. This has at least one tooth, preferably a plurality of teeth, at only one of its ends. The edge section can engage with the adjacent section via these teeth. No teeth are required at the other end of the edge section, which forms the end of the support. It is therefore preferred that the support has a respective edge section at its ends in the longitudinal direction in addition to the described sections. Alternatively, it is also possible for the edge sections to be designed like the other sections. In this case, all sections of the support can be understood as the previously described sections. The teeth at the ends of the support can remain unused in this case. The design without special edge sections facilitates production.

[0018] In a preferred embodiment, the support forms a rolling or sliding surface for the energy chain. The rolling or sliding surface is partially formed by the teeth.

[0019] The rolling or sliding surface is a surface of the sections of the support. The rolling or sliding surface is preferably flat. The rolling or sliding surface is preferably designed so that a cable carrier can slide on the rolling or sliding surface or roll with rollers on the rolling or sliding surface. The support can therefore be used for various cable carriers. In addition, the rolling or sliding surface is preferably shaped so that liquids such as rainwater can run off the rolling or sliding surface. The rolling or sliding surface is interrupted by the expansion joint between adjacent sections. Rollers of the cable carrier can roll on the rolling or sliding surface. For this purpose, the running surfaces of the rollers can come into contact with the rolling or sliding surface. Alternatively or additionally, part of the cable carrier can slide on the rolling or sliding surface, in particular via slide shoes.The fact that the rolling or sliding surface is partially formed by the teeth means in particular that the teeth can be recognized as such when looking at the rolling or sliding surface.

[0020] In a further preferred embodiment of the support, the sections each have a plurality of teeth at their ends, which are arranged offset from one another in the longitudinal direction of the support.

[0021] This embodiment is aimed at the case of multiple teeth per end of a section. The teeth at the end of a section are arranged offset from one another in the longitudinal direction. This can particularly effectively prevent rollers, for example, from sinking into the expansion joint. This is because a roller does not pass over all teeth from one section to the next at the same time. The same applies to a sliding energy chain. It is sufficient if the adjacent teeth transverse to the longitudinal direction are arranged at different positions in the longitudinal direction. For example, it is conceivable for every second tooth at one end of a section to be arranged at the same position in the longitudinal direction. However, it is preferred that the teeth at one end of a section are arranged along a line that is oblique to the longitudinal direction. This line can, for example, run through the tips of the teeth.

[0022] In a further preferred embodiment of the support, the sections each have between 1 and 10 teeth at their ends.

[0023] It has been found that this design allows the energy guide chain to run particularly smoothly. Preferably, the sections each have a plurality of teeth at their ends. However, it is sufficient for one tooth to be provided at each end of a section. For example, a single tooth can be provided at the end of a first section and two teeth at the corresponding end of a second section. In this case, the tooth of the first section can engage in the gap between the two teeth of the second section. However, it is also conceivable for both sections to have only a single tooth at their respective ends. In this case, the adjacent sections can be interlocked by arranging the teeth of the two sections next to one another. In this case, the tooth of a first section engages in a recess formed next to the tooth of the second section.This recess is limited to one side only. In this case, the ends of the sections can be L-shaped.

[0024] The sections have a respective stop element at their ends, by means of which adjacent sections can only move away from each other to a limited extent in the longitudinal direction of the support.

[0025] The sections can be in two extreme positions: On the one hand, the sections can be in direct contact with one another. The sections cannot be moved any closer to one another. On the other hand, the sections can be pulled apart so far that the stop elements come into contact with one another. The stop elements then prevent the sections from being pulled apart any further. This is possible, for example, if one tooth at each end of a section has a projection that acts as a stop element. The projection can, in particular, protrude from the tooth transversely to the longitudinal direction. By interacting with a corresponding projection on a tooth of the adjacent section, the movement of the sections in the longitudinal direction can be limited.Alternatively, it is possible, for example, for a tooth of a first section to be T-shaped and for two adjacent teeth of a second section to be L-shaped and arranged in such a way that a recess is formed in which the T-shaped tooth can only move to a limited extent.

[0026] In a preferred embodiment, the support forms a rolling or sliding surface for the energy chain. The rolling or sliding surface is flattened at at least one end of at least one of the sections, transverse to the longitudinal direction.

[0027] The fact that the rolling or sliding surface is flattened transversely to the longitudinal direction means that the rolling or sliding surface slopes down towards the respective ends when the support is oriented as intended. In a section adjacent to the respective end, the rolling or sliding surface is therefore inclined relative to the longitudinal direction. In a section between the ends, the rolling or sliding surface is preferably flat, in particular horizontal when the support is oriented as intended. Preferably, the rolling or sliding surface is flattened transversely to the longitudinal direction of the support at at least one pair of adjacent ends of the sections. Preferably, the rolling or sliding surface is flattened at both respective ends of all sections. This embodiment is particularly suitable for part of a cable carrier sliding over the support. The support is preferably suitable for a rollerless cable carrier.The flattened ends prevent contact between the energy chain and the expansion joint.

[0028] As a further aspect of the invention, a device for holding and guiding a cable drag chain is presented. The device comprises a holder and a support attached thereto. The support is divided into a plurality of sections. The sections each have at least one tooth at their ends. Two adjacent sections are interlocked via the teeth.

[0029] The described advantages and features of the support are applicable and transferable to the device, and vice versa. The support of the device is preferably designed as described. The support is preferably configured for the device.

[0030] The device is designed to hold and guide a cable drag chain. For this purpose, the device features a support and a holder. The holder serves to hold the support. Furthermore, the holder can restrict the movement of the guide trough transverse to the longitudinal direction and guide the guide trough accordingly.

[0031] It is not necessary for the device to be able to bear the entire weight of the energy guide chain alone. It is sufficient that the device can contribute to holding and guiding the energy guide chain. The energy guide chain can be held by the device, in particular to the extent that part of the energy guide chain can be placed on the support. In particular, a side link of an upper run of the energy guide chain can be placed on the support. The energy guide chain preferably has two opposite side links. Preferably, each of the side links is held at least partially by a respective device designed as described. Two devices are preferably used together as one arrangement, wherein the two devices together hold and guide the energy guide chain. The two devices can, in particular, be identical to one another or mirror images of one another.Preferably, the two devices are arranged opposite each other. Alternatively, an energy chain can also be held and guided with a single device comprising a single holder and two supports, with the two supports being attached to one holder. In this case, it is preferred that the holder be U-shaped. This allows the two supports to be held opposite each other within the U-shaped holder on its side walls.

[0032] In a preferred embodiment of the device, the holder has a guide surface on which the support is held. A rolling or sliding surface of the support is oriented perpendicular to the guide surface.

[0033] The guide surface serves to restrict the movement of the cable chain transversely to the longitudinal direction. This does not require the cable chain to actually come into contact with the guide surface during operation. It is sufficient that the possibility of this occurs during normal operation.

[0034] As a further aspect of the invention, an arrangement is presented that comprises a cable guide chain and a support. The support is divided into a plurality of sections. The sections each have at least one tooth at their ends. Two adjacent sections are interlocked via the teeth. Part of the cable guide chain rests on a rolling or sliding surface formed by the support.

[0035] The described advantages and features of the support and the device are applicable and transferable to the arrangement, and vice versa. The support of the arrangement is preferably designed as described. The support is preferably configured for the arrangement. The arrangement is preferably formed from the device and the energy guide chain. The device is preferably configured for the arrangement. The energy guide chain is not part of the described device, but rather part of the described arrangement.

[0036] As part of the energy chain, at least part of an upper run of the energy chain can rest on the rolling or sliding surface, especially via rollers. This refers to the design of the energy chain with an upper run, a lower tower, and a deflection area arranged between them. In this case, the support serves to at least partially support the weight of the upper run. In particular, a side plate of the upper run can rest on the first rolling or sliding surface.

[0037] In a preferred embodiment, the assembly further comprises a holder with a guide surface. The support is held on the guide surface. The rolling or sliding surface is aligned perpendicular to the guide surface. A portion of the energy chain is guided through the guide surface.

[0038] In this embodiment in particular, the arrangement comprises not only the energy guide chain but also the previously described device. Preferably, the arrangement comprises two of the devices arranged opposite one another.

[0039] In a further preferred embodiment of the arrangement, a support surface is formed on the holder, which is aligned parallel to the rolling or sliding surface of the support.

[0040] As part of the energy guiding chain, in particular at least part of a lower run of the energy guiding chain can rest on the support surface. In particular, a side plate of the lower run can rest on the support surface. In particular in the case of a U-shaped holder, both side plates of the lower run can rest together on the support surface. The support surface can in particular be formed on an inner side of a base of the U-shaped holder. If two oppositely arranged devices are used together, a first of the side plates preferably rests on the support surface of a first of the devices and a second of the side plates preferably rests on the support surface of a second of the devices.

[0041] The storage surface can be formed on a part of the holder. This part of the holder can be formed integrally with the rest of the holder, in particular as the base of the holder, or can be attached to the holder as a separate element. The separate element can be designed like the support described. The base of the holder is preferably made of the same material as the rest of the holder. In contrast to the support, which is preferably made of a different material, no stresses arise between the base and the rest of the holder when temperatures change. Therefore, the base can be formed continuously in the longitudinal direction without an expansion joint.

[0042] In a further preferred embodiment of the arrangement, the energy guide chain has an upper run and a lower run. At least a portion of the upper run rests on the rolling or sliding surface. At least a portion of the lower run rests on the support surface.

[0043] In a preferred embodiment of the arrangement, the energy guide chain has a plurality of rollers. Part of the energy guide chain rests with the rollers on the rolling or sliding surface formed by the support.

[0044] The invention is explained in more detail below with reference to the figures. The figures show a particularly preferred embodiment, to which the invention is not limited, however. The figures and the proportions depicted therein are merely schematic. They show: Fig. 1: a device according to the invention for holding and guiding an energy chain, Fig. 2: a plan view of a part of the support of the device from Fig. 1 , Fig. 3a and 3b: two further plan views of a part of the support of the device from Fig. 1 , Fig. 4: a cross-sectional view of an arrangement according to the invention comprising the device from Fig. 1 , Fig. 5: a perspective view of a section of a support according to the invention, Fig. 6: a side view of the section from Fig. 5 , Fig. 7: a plan view of the ends of two sections of a roller support, which as in Fig. 5 shown are designed.

[0045] Fig. 1 shows device 11 for holding and guiding a (in Fig. 4 shown) energy guiding chain 2. The device 11 comprises a holder 12 and a support 1 attached thereto. The support 1 is divided into a plurality of sections 5 in a longitudinal direction L. In Fig. 1 One section 5 is shown completely and one section 5 is shown partially. The sections 5 have a plurality of teeth 6 at their ends, by which the two sections 5 shown are interlocked. In Fig. 1 It can be seen that the two sections 5 shown engage with each other where one of the teeth 6 is provided with a reference symbol as an example.

[0046] The support 1 forms a rolling or sliding surface 7 for the energy chain 2. Part of the upper run 3 of the energy chain 2 can rest on the rolling or sliding surface 7. The rolling or sliding surface 7 is partially formed by the teeth 6. The sections 5 together form the rolling or sliding surface 7. The rolling or sliding surface 7 is therefore interrupted where the sections 5 adjoin one another and are interlocked via the teeth 6. The support 1 is held on a guide surface 13 of the holder 12. The rolling or sliding surface 7 is aligned perpendicular to the guide surface 13. The energy chain 2 can be guided by the guide surface 13.

[0047] Furthermore, a support surface 8 is formed on the holder 12, which is aligned parallel to the rolling or sliding surface 7. A portion of the lower run 4 of the energy chain 2 can rest on the support surface 8.

[0048] Fig. 2 shows a plan view of a part of the support 1 of the device 11 from Fig. 1 . Shown is the rolling or sliding surface 7 at the transition between two adjacent sections 5 of the support 1. Both sections 5 have three teeth 6 at their shown end. The teeth 6 of the two sections 5 mesh with each other. The teeth 6 prevent a (in Fig. 4 shown) roller 9 of the energy chain 2 enters an expansion joint between the sections 5 when transferring from one section 5 to the next. This makes the running of the roller 9 particularly quiet and jerk-free. This is further enhanced by the fact that the teeth 6 are offset from one another in the longitudinal direction L of the support 1. The transfer of the roller 9 from one section 5 to the next is thus distributed over time because the roller 9 encounters the expansion joint between the teeth 6 at different times. Even with an energy chain without rollers, a particularly quiet and jerk-free running of the energy chain would result in a correspondingly low noise and jerk-free operation.

[0049] It can be recognized by Fig. 2 Furthermore, the sections 5 have a respective stop element 10 at their ends, by means of which the adjacent sections 5 can only move away from each other to a limited extent in the longitudinal direction L. Shown in Fig. 2 the situation in which the two sections 5 are maximally separated from each other. In this situation, the stop elements 10 of the two sections 5 touch each other. Therefore, the two sections 5 cannot be pulled apart any further in or against the longitudinal direction L. Thus, the support 1 is held together by the stop elements 10.

[0050] Fig. 3a und 3b show two further top views of a part of the support 1 of the device 11 from Fig. 1 . Shown are the two sections 5 with the rolling or sliding surface 7, the teeth 6 and the stop elements 10. Fig. 3a shows how Fig. 2 the situation in which the two sections 5 are pulled apart to their maximum. Fig. 3b shows the situation in which the two sections 5 directly touch each other. Fig. 3a und 3b thus show the two extreme situations between which sections 5 can move.

[0051] Fig. 4 shows a cross-sectional view of an arrangement 14 according to the invention comprising two of the devices 11 from Fig. 1 and an energy guiding chain 2. The two devices 11 are arranged opposite one another. The devices 11 are each formed from a holder 12 and a support 1. It can be seen that side plates 15 of the upper run 3 of the energy guiding chain 2 rest with a respective roller 9 on the rolling or sliding surfaces 7 of the devices 11, and that side plates 15 of the lower run 4 of the energy guiding chain 2 rest with a respective roller 9 on the support surfaces 8 of the devices 11. Additional rollers 9 outside the plane of the drawing can also rest on the rolling or sliding surfaces 7. The energy guiding chain 2 could also be designed without rollers. Furthermore, Fig. 4 It can be seen that the energy chain 2 is guided through the guide surfaces 13 of the two devices 11. In the embodiment shown, this applies to both the upper run 3 and the lower run 4. The longitudinal direction L is in Fig. 4 perpendicular to the drawing plane.

[0052] Fig. 5 shows a further embodiment of a section 5 of a roller support 1 (not shown further). It can be seen that the section 5 has a single tooth 6 at one of its ends and two teeth 6 at the other of its ends. Also shown are the longitudinal direction L and the rolling and sliding surface 7.

[0053] Fig. 6 shows a side view of section 5 from Fig. 5 . It can be seen that the rolling or sliding surface 7 is flattened at both ends of the section 5 transversely to the longitudinal direction L.

[0054] Fig. 7 shows a part of a rolling support 1 with two sections 5, each like the one shown in the Fig. 5 und 6 shown. It can be seen that the individual tooth 6 of the left-hand section shown is T-shaped, while the two teeth 6 of the other section 5 are each L-shaped. The two L-shaped teeth 6 are arranged such that they form a recess in which the T-shaped tooth 6 can only move to a limited extent. In this respect, the teeth 6 form a total of four stop elements 10. Bezugszeichenliste

[0055] 1Support 2Energy chain 3Upper run 4Lower run 5Section 6Tooth 7Rolling or sliding surface 8Support surface 9Roller 10Stop element 11Device 12Holder 13Guide surface 14Arrangement 15Side plate Longitudinal direction

Claims

1. Support (1) for a cable carrier (2), wherein the support (1) is divided in a longitudinal direction (L) into a plurality of sections (5), wherein the sections (5) each have at least one tooth (6) at their ends, and wherein in each case two adjacent sections (5) are interlocked with each other via the teeth (6), characterized in that the sections (5) have at their ends a respective stop element (10) by means of which adjacent sections (5) can be moved apart from each other in the longitudinal direction (L) of the support (1) only to a limited extent.

2. Support (1) according to Claim 1, wherein the support (1) forms a rolling or glide surface (7) for the cable carrier (2), and wherein the rolling or glide surface (7) is formed partly by the teeth (6).

3. Support (1) according to either of the preceding claims, wherein at their ends the sections (5) in each case have a plurality of teeth (6) which are arranged offset relative to one another in the longitudinal direction (L) of the support (1).

4. Support (1) according to one of the preceding claims, wherein the sections (5) each have between 1 and 10 teeth (6) at their ends.

5. Support (1) according to one of the preceding claims, wherein the support (1) forms a rolling or glide surface (7) for the cable carrier (2), and wherein the rolling or glide surface (7) is flattened transversely to the longitudinal direction (L) at at least one end of at least one of the sections (5).

6. Device (11) for holding and guiding a cable carrier (2), comprising a bracket (12) and a support (1) according to Claim 1 fastened thereto.

7. Device (11) according to Claim 6, wherein the support (1) is designed according to one of Claims 2 to 5.

8. Device (11) according to Claim 6 or 7, wherein the bracket (12) has a guide surface (13) on which the support (1) is held, and wherein a rolling or glide surface (7) of the support (1) is oriented perpendicular to the guide surface (13).

9. Arrangement (14) comprising a cable carrier (2) and a support (1) according to Claim 1, wherein a part of the cable carrier (2) lies on a rolling or glide surface (7) formed by the support (1).

10. Arrangement (14) according to Claim 9, wherein the support (1) is designed according to one of Claims 2 to 4.

11. Arrangement (14) according to Claim 9 or 10, further comprising a bracket (12) with a guide surface (13), wherein the support (1) is held on the guide surface (13), wherein the rolling or glide surface (7) is oriented perpendicular to the guide surface (13), and wherein a part of the cable carrier (2) is guided by the guide surface (13).

12. Arrangement (14) according to Claim 11, wherein a tray surface (8) which is oriented parallel to the rolling or glide surface (7) of the support (1) is formed at the bracket (12), and wherein a part of the cable carrier (2) lies on the tray surface (8).

13. Arrangement (14) according to Claim 12, wherein the cable carrier (2) has an upper run (3) and a lower run (4), wherein at least a part of the upper run (3) lies on the rolling or glide surface (7), and wherein at least a part of the lower run (4) lies on the tray surface (8).

14. Arrangement (14) according to one of Claims 9 to 13, wherein the cable carrier has a plurality of rollers (9), and wherein a part of the cable carrier (2) lies with the rollers (9) on the rolling or glide surface (7) formed by the support (1).