Hinged service line attachment device

Abstract

To provide a space-saving solution for efficiently arranging a service line by a reliable method with improved maintenance options.SOLUTION: The service line attachment device 1 has a body unit 2 and a sliding unit 3. The body unit 2 and the sliding unit 3 define, in an assembled state, a through opening 4 for one or more service lines, and the sliding unit slides along upper and lower guide rail elements 2ai, 2bi of the body unit to adjust a size of the through opening in a transverse direction TR extending transverse to a through direction TH of the through opening. The body unit comprises an upper side 2c and a lower side 2a connected by a hinged side 2b, wherein the upper part comprises upper guiding rail elements and the lower part comprises lower guiding rail elements.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a service line attachment device having a body unit and a sliding unit configured to define, in an assembled state, through-openings for one or more service lines, the sliding unit configured to adjust the size of the through-openings in a lateral direction extending transversely to a penetration direction of the through-openings by sliding along upper and lower guide rail elements of the body unit. [Background technology]

[0002] Cabling in many technical applications requires the attachment of service lines, i.e. cables, cable conduits, pipes, etc., to infrastructure elements, such as machine housings or buildings. For this purpose, cable channels and even individual clamps may be used, which are screwed to the infrastructure elements. Examples of such clamps are the HellermannTyton ratchet P-clamp or the HellermannTyton High Voltage Cable Clamp.

[0003] Clamps may also be used to simultaneously attach multiple service lines that run parallel to one another, rather than individually. One such example is the HellermannTyton Screwed Ratchet Clamp. In this clamp, one leg of a U-shaped base is fixed at both ends to an infrastructure element, and a cap is slid onto the free ends of the legs after inserting the service lines into the clamp. In such a solution, the service lines are positioned adjacent to one another.

[0004] Alternatively, rails similar to or similar to Unistrut rails are used for attaching service lines, typically when multiple service lines need to be installed so that they run alongside one another. To attach the service lines to the rail, U-shaped metal clamps, such as Phoenix Steel Cable Clamps, are used to clamp one or two cables to the rail. These metal clamps engage within the rail and, in some embodiments, resemble a quarter-turn clamp. The clamps are also secured in place by tightening metal screws to compress the service lines against the rail. In such a solution, the cables can be placed one on top of the other. Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, the technical problem is to provide a space-saving solution for efficiently locating service lines in a reliable manner with improved maintenance options. [Means for solving the problem]

[0006] This problem is solved by the subject matter of the independent claims. Advantageous embodiments emerge from the dependent claims, the description and the drawings.

[0007] One aspect relates to a service line attachment device (SLMD) having a body unit and a sliding unit. The body unit and the sliding unit are configured to define a through-opening for one or more service lines in an assembled state. The sliding unit is configured to adjust the size of the through-opening in a lateral direction extending transversely to the through-opening's direction of penetration by sliding along upper and lower guide rail elements of the body unit. Thus, the extent of the through-opening is defined by the body unit and the sliding unit when the sliding unit simultaneously engages with the upper and lower guide rail elements, i.e., when the body unit and the sliding unit are in an assembled state.

[0008] The body unit includes an upper portion and a lower portion movably connected to one another by a hinge. The upper portion includes an upper guide rail element, and the lower portion includes a lower guide rail element. As a result, the sliding unit connects the upper and lower portions in the assembled state, preventing rotation about the hinge that would otherwise be possible (i.e., in the unassembled state when the sliding unit is not engaged with both the upper and lower rail elements).

[0009] This provides several maintenance benefits while enabling secure installation for a variety of service lines. The hinge allows the upper section to swing outward and away from the lower section, even with the service lines attached. This allows all service lines to be equally accessible, regardless of their order in the through-hole. This facilitates individual maintenance / replacement of service lines. This improved accessibility allows fastening means, such as the mounting elements described below, to be positioned in a location that is covered by the service lines during application, while the mounting device / lower section remains easily replaceable / removable. This placement of the mounting elements saves lateral installation space, which in turn improves maintenance options and improves the service line capacity in a given configuration, such as a given length of unistrut rail. Furthermore, using the lower area below the service lines for SLMD attachment allows for the implementation of various mounting techniques, thereby improving the versatility of the SLMD. For example, because the external dimensions can remain the same, it is possible to simultaneously implement conventional bushings and other mounting elements, such as unique mounting elements. As a result, the SLMD can be applied in many different situations, and advantageously, the hinge design also allows for sizing with respect to service line diameter (which normally makes the service line stiffer) and number of service lines (where the space normally used for mounting the SLMD becomes available for service line attachment). With stiffer service lines and a greater number of service lines, the improved accessibility provided by the hinge design provides even greater improvements in maintenance options.

[0010] In one embodiment, the lower portion is configured with at least one mounting element laterally between the hinge and the distal end of the upper portion in the assembled state for mounting the lower portion and / or the SLMD to another structure. The other structure may be, for example, an external structure such as a cable tray or unistrut rail. The mounting element may be a bushing for a conventional nut-and-bolt mounting.

[0011] Alternatively, the separate structure may be a foot structure configured to attach to the lower portion via a snap-in interface. The foot structure may be a standardized foot structure, and / or the snap-in interface may be a standardized interface also used for service line attachment devices other than the aforementioned hinge-design SLMD for stacking service lines flat, such as a push-in SLMD for stacking service lines high. Thus, the foot structure may have a snap-in interface for connecting the SLMD to the foot structure and a mount for attaching the foot structure to an external structure. For example, the foot structure may have a clip-in mount for attaching the foot structure, and thus the SLMD, to the external structure, the clip-in mount having at least an essentially rectangular cross-section to prevent rotation of the foot structure about an axis extending along the lateral direction when attached to the external structure, in particular a unistrut rail or a rail technically equivalent to a unistrut rail.

[0012] A unistrut rail can be understood as a fastening rail having two parallel side walls and a bottom wall connecting the side walls, the side walls being flanged at their end edges remote from the bottom wall along their main direction of extension, allowing individual mounting means, for example SLMDs, to be engaged therein via foot structures.

[0013] Preferably, the lower portion is configured with different types of mounting elements, such as one or more bushings and one or more snap-in interfaces, which provides the advantage of improved versatility and maintenance options.

[0014] In a further embodiment, the top is configured with a stop protrusion at its distal end distal from the hinge, which is configured to prevent the sliding unit from sliding past the distal end of the top and away from the hinge, thereby preventing unintentional loss of sliding parts and thus facilitating maintenance, particularly when the top is swung open, i.e. when the SLMD is in an open / unassembled state.

[0015] In another embodiment, in the assembled state, the upper guide rail element is configured to extend laterally farther away from the hinge than the lower guide rail element. Specifically, the upper guide rail element extends to a range that allows the sliding unit to be disengaged from the lower guide rail element while the sliding unit is still engaged with the upper guide rail element, preferably even when the stopper protrusion has not been exceeded by the sliding unit. This allows the SLMD to be opened / the upper part to be swung open while the sliding unit is attached to the upper part, further facilitating space-saving maintenance.

[0016] In a further embodiment, in the assembled state, the length of the upper part in the lateral direction is equal to or greater than the length of the lower part, and specifically, in the assembled state, the length of the upper part is configured to define the length of the service line attachment device in the lateral direction. The relevant outer dimensions in the lateral direction are therefore determined by the movable upper part. This reduces space consumption while still enabling the advantageous embodiments of the two immediately upper paragraphs, and further promotes space-saving maintenance, because, among other things, during maintenance, the SLMD is in an open / unassembled state and requires less space in the lateral direction.

[0017] In another embodiment, the upper portion is configured with a limiting element at its end region, which includes the distal end, configured to prevent the sliding unit from sliding toward the hinge, particularly when the sliding unit is positioned at the distal end. Preferably, the limiting element is part of or arranged on the upper guide rail element. For example, the limiting element may be or include one or more pinch and / or clamp elements that must be pinched / squeezed together to allow the sliding unit to slide toward the hinge. This prevents the sliding unit from unintentionally sliding toward the hinge during installation / maintenance. This is particularly advantageous when the upper portion and the sliding unit are configured to interact in a latching manner (see below). Thus, the sliding unit can be trapped between the stopper protrusion and the limiting element, facilitating maintenance.

[0018] In a further embodiment, the upper and / or lower inner surfaces that define the through opening and extend along the through-hole direction and the transverse direction are chamfered with one or more edges that extend along the transverse direction. In particular, the chamfered edge or edges may form the respective guide rail element or part of the respective guide rail element. This prevents damage to the service line and reduces the need for maintenance.

[0019] In another embodiment, for example, the upper body unit and / or the lower body unit and / or the sliding unit are configured to be rigid compared to the service line, which results in a particularly robust SLMD, which in turn reduces the need for frequent replacement / maintenance.

[0020] In a further embodiment, the upper portion and the sliding unit are configured to interact with each other in a latching manner, preferably with the sliding unit including a male ratchet and the upper portion including a female ratchet. This latching interaction may be a releasable latching interaction. Preferably, the lower portion is not configured for such a latching interaction with the sliding unit (i.e., only the upper portion and the sliding unit are configured for latching interaction). This enhances ease of maintenance by allowing the size of the through opening to be adjusted and the service lines to be securely fixed in their respective positions.

[0021] In another embodiment, the upper and / or lower guide rail element comprises two sub-elements, which are preferably configured to form respective edges defining the respective upper and / or lower inner surfaces. These inner surfaces may extend along the penetration direction and the lateral direction. This reduces the number of edges and increases the surface area with which the service line comes into physical contact, thereby reducing mechanical stress on the service line. This also facilitates maintenance.

[0022] In a further embodiment, the upper and / or lower and / or sliding unit are preferably configured to be injection molded plastic with a metal bushing. This bushing can therefore be the only metal in the SLMD. This offers the advantage of a 100% current-insulating SLMD, which is particularly advantageous in the event of an electrical fault and also facilitates maintenance.

[0023] The features and feature combinations described above, including the general introduction, and features and feature combinations disclosed in the description of the drawings or only in the drawings, may be used not only alone or in the combinations described, but also with other features or with some of the disclosed features, without departing from the scope of the present invention. Consequently, embodiments that can be created by individually combining individual features disclosed in the drawings, but which are not explicitly shown or described in the drawings, also form part of the present invention. Thus, embodiments and feature combinations that do not include all features of the originally drafted independent claims should also be considered disclosed. Furthermore, embodiments and feature combinations that deviate from or go beyond the feature combinations set forth in the dependent claims should also be considered disclosed.

[0024] In the context of the present disclosure, "transverse / along" can be understood as "at least substantially perpendicular / at least substantially parallel," i.e., as "perpendicular / parallel" or "substantially perpendicular / substantially parallel," i.e., perpendicular / parallel except for a predetermined deviation. The predetermined deviation can be, for example, 15° or less, preferably 5° or less, and particularly preferably 3° or less. Thus, "oriented in opposite directions" can be understood in the context of the present disclosure as "oriented in at least substantially opposite directions," i.e., "oriented at least substantially antiparallel." This limitation of "substantially" can also indicate a percentage of a predetermined maximum allowable deviation, e.g., 15% or less, preferably 5% or less, and particularly preferably 3% or less.

[0025] Exemplary embodiments will now be described in more detail with reference to schematic drawings. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a perspective view of an exemplary embodiment of a service line attachment device in an assembled state; [Figure 2] 1A-1C are comparative side views of two exemplary embodiments of an SLMD. [Figure 3] FIG. 1 is a side view of a main unit in an open state of an exemplary embodiment of an SLMD. [Figure 4] 4 is a bottom view of the main unit in the open state of FIG. 3. [Figure 5] 2 is a cross-sectional view of the exemplary embodiment of FIG. 1 mounted to an external structure. [Figure 6] 2 is another cross-sectional view of the exemplary embodiment of FIG. 1 mounted to another external structure. [Figure 7] FIG. 2 is a cross-sectional view of an example sliding unit. [Figure 8] 10A-10C are comparative side views illustrating exemplary designs of guide rail elements. [Figure 9] FIG. 10 is a perspective view of another exemplary embodiment of an SLMD in an assembled state. [Figure 10] FIG. 10 is a plan view of the exemplary embodiment of FIG. 9. [Figure 11] FIG. 10 is a perspective view of the exemplary embodiment of FIG. 9 with the service line in place. DETAILED DESCRIPTION OF THE INVENTION

[0027] In the drawings, identical or functionally equivalent elements are labeled with the same reference numbers.

[0028] FIG. 1 illustrates, in a perspective view, an exemplary embodiment of a service line attachment device in an assembled state. The service line attachment device 1 includes a body unit 2 and a sliding unit 3. In the assembled or closed state shown, the body unit 2 and the sliding unit 3 are configured to define through openings 4 for one or more service lines 8 ( FIG. 11 ) when in contact with each other. The sliding unit 3 is configured to slide along upper and lower guide rail elements 2 ai and 2 bi of the body unit 2 to adjust the size of the through openings 4 in a transverse direction TR (here, along the x-axis), which extends transversely (here, along the z-axis) relative to the through-opening direction TH of the through openings 4.

[0029] The main unit 2 comprises an upper section 2a and a lower section 2b connected by a hinge 2c. The upper section 2a comprises an upper guide rail element 2ai, and the lower section 2b comprises a lower guide rail element 2bi. Both the upper and lower guide rail elements 2ai and 2bi are paired guide rail elements 2ai and 2bi, with their respective rails disposed at both edges of the upper and lower sections 2a and 2b in the penetration direction TH. Thus, the upper and lower guide rail elements 2ai and 2bi consist of two sub-elements, which in the illustrated example form respective edges that define inner surfaces 2aiii ( FIG. 2 ) and 2biii of the upper and lower sections 2a and 2b, respectively. These inner surfaces 2aiii and 2biii come into contact with the service line when the SLMD 1 is in use.

[0030] In this example, the lower part 2b comprises at least one mounting element, here a plurality of mounting elements 2bii, 2bii', for mounting the lower part 2b to another structure in the transverse direction TR between the hinge 2c and the distal end 2a' of the upper part 2a in the assembled state shown in the figure. In this example, these mounting elements 2bii, 2bii' are of different types, with two mounting elements 2bii being bushings and the other two mounting elements 2bii' forming snap-in interfaces.

[0031] Furthermore, in the illustrated example, the upper part 2a has a stopper protrusion 2aii at its far end 2a' located away from the hinge 2c, and this stopper protrusion 2aii is configured to prevent the sliding unit 3 from sliding beyond the far end 2a' of the upper part 2a in a direction away from the hinge 2c, i.e., to prevent the sliding unit 3 from coming off the upper part 2a.

[0032] Here, the upper part 2a and the sliding unit 3 are configured to interact with each other in a latching manner. Preferably, the sliding unit 3 is provided with a male ratchet 3a (FIGS. 5 and 7), and the upper part 2a is provided with a female ratchet 2aa.

[0033] FIG. 2 shows two exemplary embodiments of the SLMD in comparative side views. By selecting different lower parts 2b, the SLMD 1 can be adapted to different diameters and / or different numbers of service lines. The upper parts 2a can be identical, which further improves ease of manufacturing and even maintenance due to identical parts. The sliding unit 3 is adapted for these different sizes of SLMD 1. Preferably, the mounting elements of the different embodiments have the same arrangement, which promotes interoperability and also facilitates ease of maintenance.

[0034] 3 shows in a side view the body unit of an exemplary embodiment of the SLMD in an open state with the sliding unit 3 removed. The hinge design provides high rigidity to the individual parts 2a, 2b while maintaining accessibility to all service lines and attachment elements 2bii, 2bii′ (see FIG. 4).

[0035] Figure 5 shows the exemplary embodiment of Figure 1 in a cross-sectional view along the transverse direction TR, mounted to an external structure in an assembled state. In this example, screws as mounting means 5 are used to mount the lower part 2b / SLMD1 to the external structure 6, here a cable tray. By means of these screws, the lower part 2b / SLMD1 is mounted directly to the cable tray, here via bushings 2bii, i.e. without additional foot structures.

[0036] As shown here, in the assembled state, the length of the upper part 2a in the transverse direction TR (here the x-direction) may be equal to or greater than the length of the lower part 2b in the same direction. In the assembled state, the length of the upper part 2a defines the length of the SLMD1 in the transverse direction TR and therefore the space required in the direction perpendicular to the service line, e.g. in a cable tray as an external structure 6.

[0037] Figure 6 shows the exemplary embodiment of Figure 1 mounted to another external structure in another cross-sectional view along the penetration direction TH. The sliding units 3 are engaged with the guide rail elements 2ai, 2bi via their respective counterparts 3ai, 3bi (see further Figure 7). The foot structure 7 is used to mount the lower part 2b / SLMD1 to the unistrut rail as the external structure 6. The foot structure 7 is fixed to a snap-in interface as the mounting element 2bii' of the lower part 2b. The foot structure 7 here comprises snap-in fingers 7a for detachably fastening to the snap-in interface 2bii'. The foot structure 7 comprises a clip-in mount 7b for engaging in the flange edge 6a' of the side wall 6a to mount the foot structure 7, and thus indirectly further the lower part 2b, to the external structure 6.

[0038] In this example, the clip-in mount 7b has an at least substantially rectangular cross-section that, when mounted, prevents rotation of the foot structure 7 about an axis extending along the transverse direction TR. Thus, in this example, the foot structure 7 can slide in the x-direction, which is perpendicular to the plane of the drawing, but cannot rotate about the y-axis. Alternatively, the foot structure 7 could be implemented using a standard quarter-turn mount for a unistrut rail.

[0039] FIG. 8 shows exemplary designs of guide rail elements in comparative side views. The guide rail elements 2ai, 2bi on the right correspond to the guide rail elements 2ai, 2bi of the previous example. For the exemplary design on the left, the inner surface 2bii, which defines the through opening 4 and extends along the through-through direction TH (here, z-direction) and the lateral direction TR (here, x-direction), is chamfered at one or more edges, here two edges, extending along the lateral direction TR. This is shown for the inner surface 2biii of the lower part 2b, but could additionally or alternatively apply, mutatis mutandis, to the inner surface 2aiii of the upper part 2a. In the illustrated example, the chamfered edge forms at least part of the respective guide rail element 2bi.

[0040] 9 and 10 show a perspective view and a plan view of another exemplary embodiment of the SLMD in the assembled state. In this example, the upper part 2a is provided with a limiting element 2aiv in its end region with the distal end part 2a′, which is configured to prevent the sliding unit 3 from sliding in the direction toward the hinge 2c. As shown here, the limiting element 2aiv prevents the sliding unit 3 from sliding when the sliding unit 3 is positioned at the distal end part 2a′, i.e., when the sliding unit 3 abuts against the stopper protrusion 2aii (here covered by the sliding unit 3). The limiting element 2aiv may be part of the upper guide rail element 2ai or, as shown, may be integral with said upper guide rail element 2ai.

[0041] As can be seen from FIG. 10, this limiting element 2aiv prevents the sliding unit 3 from moving towards the hinge 2c by, in this example, widening the upper part 2a in the region of the guide rail element 2ai in the through-through direction TH (here, the z-direction). Therefore, in this embodiment, the limiting element 2aiv is shaped as a pinch, and must be pinched in the through-through direction in order for the sliding unit 3 to slide over this pinch towards the hinge 2c. In FIG. 10, the sliding unit 3 is trapped in a position between the stop projection 2aii and the non-pinched limiting element 2aiv. If the upper part 2a has a high stiffness due to limited use, the required elasticity of the limiting element 2aiv can be achieved by adapting the material thickness. This also applies to the stop projection 2aii.

[0042] FIG. 11 shows the exemplary embodiment of FIGS. 9 and 10 in a perspective view with the service line in place. The service line 8 extends along the penetration direction TH during intended use. As is clear from this example, the upper guide rail element 2ai may extend further in the lateral direction TR away from the hinge 2c than the lower guide rail element 2bi. As is also clear from FIG. 9, this extension of the upper guide rail element 2ai is possible to the extent that it allows the sliding unit 3 to disengage from the lower guide rail element 2bi while still being engaged with the upper guide rail element 2ai, possibly even before the stopper protrusion 2aii has been exceeded by the sliding unit 3. Note that in FIG. 11, the limiting element 2aiv is not visible because it is located within the sliding unit 3.

[0043] The proposed solution provides a space-saving, easy-to-maintain service line attachment device that focuses on stacking service lines flat, i.e., stacking the service lines primarily along the surface of the supporting exterior structure. In a companion application, an alternative space-saving, easy-to-maintain service line attachment device solution is provided that focuses on stacking service lines high, i.e., stacking the service lines primarily transversely to the surface of the supporting exterior structure. Both of these types of service line attachment devices can rely on the same foot structure to attach the device to the unistrut rail, thereby providing a versatile service line attachment system solution for a wide variety of different applications. [Explanation of symbols]

[0044] 1 Service Line Mounting Device 2 Main unit 2a upper part 2a' far end 2aa female ratchet 2ai Upper guide rail element 2aii Stopper protrusion 2aiii inner surface 2aiv Restrictive Factors 2b Lower 2bi Lower guide rail element 2bii Mounting element, bushing, inner surface 2bii' mounting element, snap-in interface 2biii inner surface 2c hinge 3 Sliding unit 3a male ratchet 3ai Counterpart 3bi Counterpart 4 Through-hole 5 Attachment means 6 External structures 6a Side wall part 6a' flange edge 7 Foot structure 7a Snap-in Fingers 7b Clip-in Mount 8 Service Line TH penetration direction TR Lateral direction

Claims

1. A service line attachment device (1) having a body unit (2) and a sliding unit (3), the body unit (2) and the sliding unit (3) are configured to define, in an assembled state, a through opening (4) for one or more service lines (8); In the service line attachment device (1), the sliding unit (3) is configured to adjust the size of the through-opening (4) in a transverse direction (TR) extending transversely to a penetration direction (TH) of the through-opening (4) by sliding along an upper guide rail element (2ai) and a lower guide rail element (2bi) of the main unit (2), The main body unit (2) has an upper part (2a) and a lower part (2b) connected by a hinge (2c), the upper part (2a) is provided with the upper guide rail element (2ai), A service line mounting device (1), characterized in that the lower part (2b) is provided with the lower guide rail element (2bi).

2. 2. A service line attachment device (1) according to claim 1, characterized in that the lower part (2b) comprises at least one attachment element (2bii, 2bii'), in particular at least one bushing and / or at least one snap-in interface, for attaching the lower part (2b) to another structure (6) in the transverse direction (TR) between the hinge (2c) and the far end (2a') of the upper part (2a) in the assembled state.

3. 3. The service line attachment device (1) according to claim 1 or 2, characterized in that the upper part (2a) has a stopper protrusion (2aii) at a far end (2a') located far from the hinge (2c), the stopper protrusion (2aii) being configured to prevent the sliding unit (3) from sliding beyond the far end (2a') of the upper part (2a) in a direction away from the hinge (2c).

4. 4. The service line mounting device (1) according to claim 1, wherein in the assembled state, the upper guide rail element (2ai) extends further in the transverse direction (TR) away from the hinge (2c) than the lower guide rail element (2bi), in particular to an extent that allows the sliding unit (3) to be disengaged from the lower guide rail element (2bi) while the sliding unit (3) is still engaged with the upper guide rail element (2ai), preferably even when the stopper protrusion (2aii) has not been exceeded by the sliding unit (3).

5. A service line attachment device (1) according to any one of claims 1 to 4, characterized in that in the assembled state, the length of the upper part (2a) in the transverse direction (TR) is equal to or greater than the length of the lower part (2b), specifically, in the assembled state, the length of the upper part (2a) defines the length of the service line attachment device (1) in the transverse direction (TR).

6. 6. The service line mounting device (1) according to claim 1, wherein the upper part (2a) comprises a limiting element (2aiv) in an end region of the upper part (2a) comprising a distal end (2a'), the limiting element (2aiv) being configured to prevent the sliding unit (3) from sliding in a direction towards the hinge (2c), in particular when the sliding unit (3) is positioned at the distal end (2a'), and preferably the limiting element (2aiv) being part of the upper guide rail element (2ai) or being arranged on the upper guide rail element (2ai).

7. 7. A service line mounting device (1) according to any one of claims 1 to 6, characterized in that the inner surfaces (2aiii, 2biii) of the lower part (2b) and / or the upper part (2a), which define the through opening (4) and extend along the through direction (TH) and the transverse direction (TR), are chamfered with one or more edges extending along the transverse direction (TR), in particular the one or more edges being respective guide rail elements (2bi) or edges forming part of the respective guide rail elements (2bi).

8. 8. A service line attachment device (1) according to any one of claims 1 to 7, characterized in that the upper part (2a) of the main unit (2) and / or the lower part (2b) of the main unit (2) and / or the sliding unit (3) are rigid.

9. 9. A service line attachment device (1) according to any one of claims 1 to 8, characterized in that the upper part (2a) and the sliding unit (3) are configured to interact with each other in a latching manner, preferably the sliding unit (3) is provided with a male ratchet (3a) and the upper part (2a) is provided with a female ratchet (2aa).

10. 10. A service line mounting device (1) according to any one of claims 1 to 9, characterized in that the upper guide rail element (2ai) and / or the lower guide rail element (2bi) comprise two sub-elements, preferably forming respective edges that define the respective inner surfaces (2aiii, 2biii) of the upper part (2a) and / or the lower part (2b).

11. 11. A service line mounting device (1) according to any one of claims 1 to 10, characterized in that the upper part (2a) and / or the lower part (2b) and / or the sliding unit (3) are preferably injection-molded plastic with metal bushings.

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