Line routing apparatus with flexible jacket and modular end fastening structure for clean room applications

Abstract

A pipeline guiding device (1) comprising a flexible, movable sheath (2) having a channel-like receiving portion (7) for a pipeline (8), an end fastening device (20) comprising two clamping plates (210) each having a main face (22) for exerting a clamping force and having a holding region (211) for a tensile force relieving element each. The holding region holds the tensile force relieving element on the respective clamping plate against displacement in the longitudinal direction and according to the invention forms a profile cross section (220) having a lateral recess (221). The tensile force relieving element (23A; 23G) has at least one connection region (230) corresponding to the profile cross section (220) of the holding region for form-lockingly counterhooking the lateral recess in order to hold the tensile force relieving element (23A; 23G) on the clamping plate (210) also in a direction perpendicular to the main face (22). A variant of the end fastening device comprising two plate connectors (240A; 240B) for holding the clamping plates (210) together on the lateral end regions (214) each having two opposite clamping regions (242) for form-lockingly cooperating with the end regions (214).

Description

[0001] This application is a divisional application of the invention patent application with application number 202080086725.0, application date December 10, 2020, entitled "Pipeline guiding device with flexible sheath and modular end fastening structure for cleanroom applications". Technical Field

[0002] This invention generally relates to pipeline guiding devices for pipelines, particularly in cleanroom applications, such as cables, hoses, or the like, specifically to pipeline guiding devices capable of reciprocating between two segments originating from a first end and a second end, forming a turning arc.

[0003] The present invention relates in particular to an improved end-fastening structure for such dynamic pipeline guiding devices. Background Technology

[0004] Pipe guiding devices currently considered to belong to this category for cleanroom applications typically have one or more longitudinally elongated flexible sheaths, which usually have channel-like receiving portions for the pipeline, extending continuously in the longitudinal direction and adjacent to each other in the transverse direction. Such flexible sheaths or their receiving portions are also referred to as so-called "pods" and are particularly protected against the escape of abrasive particles generated during pipeline movement.

[0005] For most applications, a first end fastening device is provided for a first end of the pipeline guiding device and a second end fastening device is provided for a second end of the pipeline guiding device. The end fastening device is used to attach the end to one of two attachment points, such as attachment to a machine, wherein at least one of the attachment points is movable relative to the other attachment point.

[0006] Examples of such pipeline guiding devices with end-fastening devices specifically designed for this purpose are described in DE 102012 100 290 B4 or in EP 3 226 252 A1.

[0007] The end-fastening device according to the preamble of claim 1 or 2 is described in utility model DE 20 2019 103276 U1 or in the later-published international patent application PCT / IB2020 / 000047 (see Figures 13A-13D there). Here, each of the two end-fastening devices has at least two clamping plates having a main surface for applying clamping force, wherein the clamping plates can be arranged to have a main direction perpendicular to the longitudinal direction of the sheath or the guided tubing. Furthermore, two tension-relieving elements are provided between the two clamping plates, each having a clamping surface for clamping one or more tubing lines in its dustproof sheath. The tension-relieving elements are arranged opposite each other between the main surfaces of the clamping plates facing each other and forcefully hold the sheath together with the tubing in the longitudinal direction, particularly to reduce the tubing load in terms of tension.

[0008] In the end-fastening structures according to DE 20 2019 103 276 U1 or PCT / IB2020 / 000047, each clamping plate has two retaining regions that hold a tension-relieving element in a direction parallel to the main surface, i.e., to prevent displacement in the longitudinal direction of the conduit. The retaining regions are here configured as continuous elongated holes in the clamping plate extending in the main direction of the clamping plate. The tension-relieving elements extend into these elongated holes with corresponding protrusions and are thus fixed in the longitudinal direction or perpendicular to the main direction of the clamping plate. For example, DE 102012 100 533 B4 also describes clamping plates with elongated holes serving as retaining regions and similar functions (see Figures 8-9 there), however, there the clamping plates are used for individual tension-relieving elements adjacent to each other.

[0009] The clamping plates are typically connected to each other, for example, tensioned together, and fastened to attachment points, such as the machine or equipment to be supplied, via threaded connections on both sides.

[0010] By means of tension-reducing elements, force-locking, especially friction-locking, is applied to the sheath and the tubing guided therein via clamping surfaces, such that the sheath and tubing are secured in the longitudinal direction by means of end fastening structures on the corresponding attachment points, wherein the tension of the tubing is reduced.

[0011] A drawback of the known equipment is the relatively cumbersome handling of the end-fastening structures during assembly and disassembly. For maintenance purposes, the end-fastening structures require periodic disassembly and reassembly, especially when the wiring needs replacement due to its limited lifespan caused by cyclic operation. When loosening clamping or threaded connections, known end-fastening structures, such as those known in DE 10 2012 100 533 B4, are disassembled into multiple parts, which correspondingly need to be matched and held together before tightening. This disadvantage is particularly pronounced when the conduit guiding equipment comprises multiple overlapping layers of sheathing or is intended to guide multiple conduits.

[0012] Another drawback is that the known end-fastening structures are only conditionally applicable to pipe diameters that vary greatly, especially to the simplified construction method according to DE 20 2019 103 276 U1.

[0013] Clamping devices for multiple pipelines of different diameters are known from other fields, namely, the field of stationary pipeline guides. For example, GB934771A or DE19545867A1 describe devices for fastening multiple pipelines side-by-side on a stationary surface. These devices use two profile rails with U-shaped or C-shaped profiles as clamping plates and different clamping elements. Each clamping element has a clamping receiving portion for the pipeline on one side and a connection area that matches the profile of the profile rail on the other. However, these clamping devices are laborious to manufacture and not easily applicable to fastening movable pipeline guides with sheaths. Summary of the Invention

[0014] Therefore, the first objective of this invention is to provide a construction method for an end-fastening structure that is easy to handle, yet still better, and particularly modularly, adaptable to different pipeline diameters. According to a first aspect of the invention, this is achieved by a pipeline guiding device according to claim 1.

[0015] Another objective is to improve the modularity of the end-fastening structure, particularly in terms of its applicability to a wide variety of arrangements of sheaths or pipelines. According to another independent aspect of the invention, this objective can be achieved by providing an end-fastening device according to claim 9, which is also convenient to handle if necessary.

[0016] According to another independent aspect, a modular structural kit for end-fastening devices according to claim 20 is provided, which in particular overcomes at least in part the two disadvantages mentioned above.

[0017] First aspect According to the first aspect, in the case of the pipeline guiding device of the preceding part according to claim 1 or the end fastening device of the preceding part according to claim 2, the retaining region of the clamping plate according to the invention forms a side-recessed profile cross-section, which, when viewed in a cross-section perpendicular to the main direction, forms a profile cross-section having at least one side-recessed portion. According to the invention, the tension-relieving element here respectively has at least one corresponding connecting region configured to form-lockingly hook (hintergreifen) the side-recessed portion and correspondingly or jointly function with the profile cross-section of the retaining region.

[0018] By hooking itself into the clamping plate or into the connection area of ​​the tension-relieving element on the clamping plate, the tension-relieving element can also be reliably held on the corresponding clamping plate in a direction perpendicular to the main surface.

[0019] This configuration offers the particular advantage that the tension-relieving element is held or maintained on the clamping plate in a predetermined manner or arrangement before or after the clamping plate is tightened or loosened, meaning the end fastening structure can be handled more easily. It also avoids disassembling the components into different parts that would otherwise require laborious arrangement to match the piping layout for reassembly or initial assembly.

[0020] This is not only particularly advantageous, but especially in cases with multi-layered pipelines or sheaths and / or with multiple different modular tension-reducing elements, which, for example, are individually adapted to the pipeline diameter.

[0021] Furthermore, the anti-hook connection between the tension-reducing element and the clamping plate can improve force transmission, especially in the longitudinal direction, or minimize movement clearance and thus minimize wear in the end-fastening structure itself. Tests have shown that during operation, stronger particle release can typically be measured on the end-fastening structure than on the section or steering arc.

[0022] Unlike DE 20 2019 103 276 U1 or PCT / IB2020 / 000047, it is advantageous to have an implementation with multiple individual modular tension-relieving elements on each clamping plate. In this extended embodiment, the individual tension-relieving elements are configured to be arranged in opposing rows between the main faces of the clamping plates, wherein each row has multiple tension-relieving elements adjacent to each other along the main direction. Therefore, different tension-relieving elements can be modularly matched to the desired pipeline and pre-assembled on the clamping plate.

[0023] Additionally, to secure optional additional support chains, specialized fastening elements can be used to fix the support chains at the ends. Such fastening elements preferably also have a connection area—corresponding to the connection area of ​​the tension-reducing element—configured to work in conjunction with the profile and cross-section of the clamping plate.

[0024] Therefore, multiple tension-reducing elements and fastening elements can be modularly or optionally mounted on the clamping plate in a manner that cannot be lost, so as to form a pre-assembled unit with the clamping plate.

[0025] Tension-reducing elements for pipelines can be configured on their respective clamping surfaces, for example, as having a toothed portion with a protruding toothed region extending in the longitudinal direction of the pipeline, or as a type with a single longitudinally extending comb tooth, to induce good frictional engagement for tension reduction and simultaneously induce deformability, which allows the tension-reducing element to be used in regions with different pipeline diameters. Tension-reducing elements can also be configured, for example, to form a semi-shell-shaped receiving portion with a concave, curved clamping surface, which, through force locking and, if necessary, through a clamping connection, allows for as close as possible, or mechanically advantageous, tension reduction of the pipeline in the longitudinal direction, if necessary, together with the corresponding receiving channel of the sheath. For the purposes of this invention, the construction of the clamping surface is not critical; every suitable shape can be considered, which at least through force locking, secures the corresponding pipeline in the corresponding sheath in the longitudinal direction. The clamping surface facing the pipeline can be provided on the front main side of the tension-reducing element, which opposes the rear main side having a connecting region.

[0026] According to the first aspect, the connection area of ​​the tension-reducing element or optionally the fastening element for supporting the chain is configured with a laterally concave profile cross-section for form-fitting into the retaining area of ​​the associated clamping plate, such that the element is held on the clamping plate in the longitudinal direction of the pipeline, i.e., perpendicular to the main direction of the clamping plate, and simultaneously in a direction perpendicular to the main plane. The element is preferably detachable from the clamping plate, particularly detachable transversely to the longitudinal direction of the pipeline.

[0027] The stress-relieving element is preferably integrally made of plastic, particularly a relatively soft plastic, especially a thermoplastic, having similar strength or hardness to the material of the flexible sheath. The stress-relieving element can be made of a suitable plastic, particularly a thermoplastic, having a Shore hardness in the range of 20 Shore A (ShA20) to 65 Shore D (ShD65), particularly in the range of 50 Shore A (ShA50) to 100 Shore A (ShA100). This avoids damage to the sheath and minimizes wear caused by frictional locking maintained on the sheath. In particular, the stress-relieving element is preferably made of a material softer than the clamping plate and / or has a configuration more easily deformable than the clamping plate, which should transfer the clamping force to the stress-relieving element.

[0028] The clamping plate is preferably implemented in a fixed shape, especially with bending rigidity, through suitable sizing and / or material selection. The clamping plate particularly has two long end sides and two short narrow sides, and can have a substantially rectangular profile (Grundriss).

[0029] In a preferred extension, the clamping plate's cross-section is laterally open to the outside on at least one of its short narrow sides, and preferably on both short narrow sides. Therefore, the tension-relieving element can be easily pushed into and positioned within the clamping plate (in the transverse or lateral direction with respect to the line) on one or both narrow sides of the clamping plate via the connection area. However, installation by rotation is also possible, for example, with a bayonet coupling or the like.

[0030] Particularly preferably, the clamping plate is configured such that the profile cross-section extends over at least one major portion of the length of the clamping plate, preferably over the entire length of the clamping plate, enabling multiple positioning of the tension-reducing element.

[0031] Preferably, at least the profile cross-section is implemented consistently over the entire length of the clamping plate or in the main direction. The clamping plate can have an outer profile that remains unchanged in cross-section over its entire length or in the main direction. Therefore, the clamping plate can be manufactured, for example, cost-effectively and according to size, from long profile pieces. Here, this profile can be implemented planarly or flatly on the two main sides, especially in the front view or in the longitudinal section.

[0032] In a particularly preferred embodiment, the clamping plate, typically having two long end sides (long sides) parallel to the main direction, preferably has a profiled cross-section formed by a groove on or between the two end sides, wherein the groove is preferably configured to be mirror-symmetrical about an intermediate plane of symmetry, which is parallel to the main surface. Preferably, corresponding connecting areas acting on the two opposing end sides are provided on the tension-reducing element. These connecting areas can be claw-like or clamp-like and oppositely engaged into the corresponding end grooves to achieve the desired retaining effect.

[0033] By holding the element on both sides of the end of the clamping plate, the element is held particularly stably on the clamping plate. That is, the displacement or relative movement between the element and the clamping plate, for example, during the reciprocating movement of the movable end fastening structure, caused by tension and thrust, is minimized, which also minimizes wear and generated particles.

[0034] In particular, but not only in the case of the holding area on the end side of the clamping plate, it is advantageous that the tension-reducing elements protrude beyond the clamping plate in the longitudinal direction on the end side, at least on the free side of the end fastening device away from the attached section, preferably on both sides. This allows for the formation of an edge protection portion for the pipeline above the edge of the clamping plate, thereby protecting the pipeline and further minimizing potential wear.

[0035] Particularly preferred are the connecting regions on the tension-reducing elements, which act on the end sides of the clamping plate on both sides and / or simultaneously form a continuous edge protection portion across the width of the element in the transverse direction. This arrangement of tension-reducing elements enables a stable connection between the element and the clamping plate, achieving continuous edge protection in the transverse direction. Optional fastening elements or optional spacing retainers for the support chain can also be configured as corresponding connecting regions with edge protection portions.

[0036] In one embodiment, each clamping plate has two main surfaces facing away from each other, and on each of the two main surfaces, or on each main surface, a retaining area for a tension-relieving element is provided on both sides. Each retaining area is formed with a profile cross-section having a side recess perpendicular to the main direction, wherein the two profile cross-sections preferably have the same shape. Therefore, tension-relieving elements and fastening elements can be optionally mounted and retained on both sides.

[0037] In embodiments with retaining regions on both sides, the two retaining regions are arranged offset from each other on the clamping plate in the longitudinal direction or in a direction perpendicular to the main direction. Here, the retaining regions are preferably arranged rotationally symmetrically about the main central axis of the clamping plate, so that the matched tension-reducing elements can be used on both sides of the clamping plate by simple rotation. Preferably, the retaining regions or their cross-sectional profiles are arranged centrally in one of the two width halves of the clamping plate, wherein the two width halves of the clamping plate are particularly capable of being configured rotationally symmetrically with each other. Here, "width half" refers to the half after being divided along the length.

[0038] In a preferred embodiment, the retaining region, or each retaining region, can be configured in a mirror-symmetric manner, particularly with respect to a central symmetric plane perpendicular to the main surface, i.e., having two mirror-symmetric side recesses. This further simplifies the arrangement, especially in the case of centrally arranged retaining regions.

[0039] Alternatively, or as necessary, each retaining region may include a profile groove recessed relative to the main surface and / or a profile protrusion convex relative to the main surface. The retaining region may be configured, for example, centered in the main surface or centered in half of the width, as a profile groove continuous in the main direction.

[0040] In principle, the profile cross-section is understood in the present context as a cross-section having any type of profile, which, according to the invention, allows the tension-relieving element to be hooked back so as to hold the tension-relieving element in a direction perpendicular to the main surface of the clamping plate. This profile can form a male mold, particularly a protrusion, and / or a female mold (free space), particularly a profile groove. The profile cross-section can be formed concurrently with the manufacture of the clamping plate, for example, in continuous casting or injection molding, or can be added subsequently by cutting, for example by milling.

[0041] The profile groove and / or profile protrusion can have any suitable shape with side recesses, such as T-shaped, V-shaped, or dovetail-shaped or similar profile cross-sections that can be hooked back.

[0042] The connection area of ​​the tension-reducing element has a cross section that is conjugate to the profile cross section, and in particular, a shape-locking match. It should be able to shift in the holding area in the main direction, i.e., the longitudinal direction transverse to the pipeline, due to a small gap, so as to further facilitate handling during assembly or adjustment of the pipeline guide structure.

[0043] The features of the first aspect described above can be advantageously combined with the features of the second aspect described below, and vice versa.

[0044] Second aspect According to an independent second aspect, as claimed in the preamble of claim 10, an end-fastening device is provided for fastening the end of a pipeline guiding device of this class. The end-fastening device includes at least two clamping plates having main surfaces for applying clamping forces, wherein each clamping plate has two lateral end regions and two long end sides extending parallel to the main direction. Inherently, the clamping plates are arranged with long end sides perpendicular to the sheath or pipeline. Furthermore, the end-fastening device has a plurality, however at least two, tension-relieving elements, each having a clamping surface for one or more pipelines, wherein the tension-relieving elements are positioned opposite each other between the opposing main surfaces of the clamping plates.

[0045] According to a separate second aspect, the invention proposes providing two separate plate connectors for holding two associated clamping plates respectively on one of two lateral end regions, wherein each plate connector has two opposing, particularly vertically opposing, clamping regions that interact with the end region of one of the two clamping plates. According to the invention, the plate connector configuration is for holding at least two clamping plates together by gripping the clamping plates at their respective end sides, particularly in the height direction or perpendicular to the plate direction.

[0046] Two board connectors are able to hold clamping plates, in particular, at a predetermined distance from each other and / or parallel to each other.

[0047] The two clamping plates are held together in pairs and connected to each other in pairs at their respective lateral end regions by separate plate connectors located between them, the lateral ends being located on two short (narrow) sides. Each clamping region in the opposing clamping regions preferably acts at least in a form-locking manner on one clamping plate.

[0048] The board connector simplifies handling in multi-layer arrangements with multiple stacked sleeves, as the corresponding layer is held in place when the board connector is mounted on the appropriate clamping plate for that layer. The board connector can be used for pre-fixation, and suitable tension-relieving elements can be incorporated to apply clamping force to the tubing within the sleeves. No separate threaded connection is required. Instead, it facilitates opening or access to individual layers, for example, for targeted tubing replacement, since adjacent layers do not need to be disassembled in multi-layer configurations.

[0049] Furthermore, individual plate connectors allow for a simplified construction of the clamping plates. These plate connectors can, for example, be optionally cut from longer profiles to match the desired width of the end fastening structure.

[0050] Therefore, according to the second aspect, the board connector can connect and retain two clamping plates in pairs in the longitudinal direction and perpendicular to the main surface by means of its clamping area.

[0051] The board connector is preferably connected to the end area of ​​the clamping plate in a detachable manner, especially in a manner that allows it to be displaced relative to the clamping plate in the lateral or transverse direction, so as to enable lateral detachment.

[0052] A plate connector can connect two clamping plates to each other, particularly in the form of a clamp, and hold them at a predetermined distance in a direction perpendicular to the main face, the predetermined distance being determined by the plate connector. Here, the advantage is that threaded connections for manufacturing the desired tension-reducing structure are not mandatory, and the desired force engagement with the sheath or pipeline can be achieved by appropriately selecting the tension-reducing element and / or the plate connector.

[0053] Alternatively or supplementing this, the clamping area of ​​the board connector is particularly preferably—similar to the connection area of ​​the clamping element—implemented to work in conjunction with the profile of the clamping plate, which preferably opens to the outside on two short, narrow sides. Therefore, the board connector can be easily installed and detached from the side.

[0054] Additionally, each board connector may include a support body that constitutes a spacing retainer for a pre-defined vertical spacing between clamping plates. Preferably, the support body has a construction height that is at least twice the construction height of a tension-reducing element, such as a tension-reducing element from a defined associated configuration within the structural group.

[0055] Preferably, the support body is provided with at least one vertical through hole for threaded connection, which is used for fastening, especially at the attachment point.

[0056] For both aspects, namely the first and the second, the following extended features are advantageous.

[0057] In one embodiment, each tension-relieving element is configured such that it protrudes beyond the end of the clamping plate in the longitudinal direction and forms a receiving portion on the back side away from the clamping surface, in which the corresponding clamping plate can be received at least partially.

[0058] In particular, when combined with the latter construction method and / or the second aspect, it is advantageous that each tension-relieving element has an opposing connecting region for form-fitting into a corresponding side recess of a profiled groove or molded groove on the end side of the clamping plate, so as to hold the respective tension-relieving element on the clamping plate in a direction perpendicular to the main surface of the respective clamping plate. Here, the construction height of the connecting region itself is preferably less than or equal to half the thickness of the clamping plate, so that the tension-relieving elements can be fastened to the same clamping plate on both sides without obstruction.

[0059] Preferably, the connection area of ​​the element, especially the tension-reducing element, does not protrude beyond the opposite main side when mounted on the main side of the clamping plate.

[0060] In principle, exactly one tension-reducing element can be provided on each main side of the clamping plate. However, a modular construction becomes preferred, in which multiple tension-reducing elements are arranged in a row along the main direction on the clamping plate, in particular elements from different groups of tension-reducing elements matched to the application selection and, if necessary, fastening elements for supporting the chain.

[0061] Preferably, the elements are held on the clamping plate in a displaceable manner and / or in a detachable manner for positioning in the main direction.

[0062] When the clamping plate is implemented as a substantially flat plate, especially when the plate has a flat main surface in the longitudinal section or a plate thickness that remains constant in the main direction, it is possible to manufacture it in a particularly cost-effective manner.

[0063] Here, the clamping plate can be manufactured from a continuous profile, particularly having a cross-sectional shape according to the first aspect, by cutting it to the desired length; the continuous profile is, for example, an extruded metal profile, especially aluminum. Alternatively, the clamping plate can also be made from, for example, reinforced plastic, for example, in injection molding.

[0064] On the other hand, the stress-reducing elements and, if necessary, the fastening elements are preferably made of one piece of plastic, especially injection molded parts.

[0065] The board connector is preferably made of a plastic that is harder than the tension-reducing element, especially as an injection-molded part, such as from a fiber-reinforced polymer. The board connector is shape-fixed, particularly in the direction perpendicular to the main surface of the clamping plate, and cannot be stretched or compressed under a given load, so as to achieve force locking between the tension-reducing element and the pipeline when working with the clamping plate. The desired force for holding the pipeline can be achieved by appropriately selecting or sizing the board connector in conjunction with appropriately selecting or sizing the tension-reducing element. Threaded connections are not necessary for this purpose.

[0066] The tension-relieving element can have an operating side with a clamping surface. Viewed in a cross-section along the main direction or in a longitudinal direction perpendicular to the pipeline, this clamping surface is, for example, formed by a concave bend, an alternating concave / convex bend, or a toothed or comb-like concave / convex shape. The clamping surface can, in a general geometric sense, be configured as a column, i.e., configured with a profile that remains unchanged parallel to the main direction.

[0067] It is possible to provide tension relief elements that can be adjusted differently for different pipeline diameters, and the tension relief elements can be modularly connected to the clamping plate.

[0068] Especially in multi-layer applications with multiple overlapping sleeves, it is mechanically advantageous for the clamping plate to have at least two through holes for threaded connection in each of the two lateral end regions and one or more additional through holes for threaded connection between the end regions along the main direction. This type of through hole can also be implemented as an elongated hole if necessary, and is used to install additional screws for fastening and / or clamping effects.

[0069] The board connector can have at least two, preferably three, through holes for threaded connections, which are preferably arranged to align with corresponding through holes for threaded connections in the clamping plate.

[0070] Another advantage, particularly the second one, is that three clamping plates arranged vertically are sufficient to secure at least two sleeves in the stacked layers when necessary. In the assembled state of the end fastening structures, tension-reducing elements are maintained on both sides of the middle clamping plate, serving not only to secure one sleeve to one side of the middle clamping plate but also to secure the other sleeve to the other side. Therefore, it is unnecessary to provide two clamping plates for each layer or each sleeve. This reduces material costs and further simplifies handling.

[0071] Third aspect According to an independent third aspect, the invention also relates to a modular structural kit for end-fastening structures of this class. According to independent claim 20 or according to the third aspect, the structural kit, in a minimized embodiment, is characterized by at least five distinct components, namely: - At least one flat clamping plate; - At least two different types of tension-relieving elements, each with a different construction height and having a connection area with the same construction, for fixing to the clamping plate in at least one longitudinal direction; - At least two different types of board connectors, the board connectors having different construction heights, wherein each board connector has two opposing clamping regions with identical construction, the clamping regions respectively acting in a form-locking manner with a clamping plate, particularly with the end region of the clamping plate.

[0072] All of the aforementioned features of the individual components (especially clamping plates, tension-reducing elements, and board connectors) can also be advantageously applied in structural kits.

[0073] Using two plate connectors constructed with different heights particularly allows for the modular use of end-fastening structures with only one type of clamping plate. These clamping plates are used not only in multi-layer arrangements with two or more overlapping sleeves, but also in single-layer arrangements, where the sleeves are held nested between only two clamping plates if necessary. This type of assembly can better adapt to different applications, especially pipe diameters, with a minimized number of parts, while still simplifying handling during manufacturing and field maintenance. However, it is preferable to provide more than two different types of tension-reducing elements for different pipe diameters.

[0074] Particularly preferably, the structural kit is configured with clamping plates and tension-reducing elements according to the first aspect, wherein each clamping plate has at least one holding region having a profile cross-section having a side recess, and each tension-reducing element has a connecting region for holding the tension-reducing element on the clamping plate in a direction perpendicular to the main surface of the clamping plate by hooking the side recess of the profile cross-section.

[0075] In all preferred embodiments, the tension-relieving element extends beyond the end side of the clamping plate in the longitudinal direction or perpendicular to the main direction of the clamping plate, particularly extending beyond the end side of the clamping plate on both sides, and / or at least partially encircles the corresponding end side to form an edge protection portion. Attached Figure Description

[0076] Without limiting the generality of the foregoing, other details and advantages of the invention will become apparent in the following explanation of preferred embodiments with reference to the accompanying drawings. Features having corresponding or identical structures or functions are indicated by corresponding reference numerals and are described without repetition if necessary.

[0077] In this case, it is shown that: Figure 1A-1B A perspective view of a pipeline guiding device of this class, based on, for example, prior art known by DE 20 2019 103 276 U1. Figure 1A ) and cross-sections transverse to the longitudinal direction ( Figure 1B A schematic diagram of ( ); Figure 2A-2C Used according to Figure 1A-1B A perspective view of the first embodiment of the end fastening structure of the pipeline guiding device in the assembled state. Figure 2A ) and exploded diagram ( Figure 2B ) and side view ( Figure 2C ); Figure 2D :according to Figure 2A-2C A perspective view of a variant of the end fastening structure, which has different tension-reducing elements; Figures 3A-3B Cross-sectional and side views of a second embodiment of the end-fastening device; Figures 4A-4B Cross-sectional and side views of a third embodiment of the end-fastening device; Figures 5A-5C Cross-section of the fourth embodiment of the end fastening device ( Figure 5A ) and partial perspective ( Figures 5B-5C ); Figures 6A-6C Cross-section of the fifth embodiment of the end fastening device ( Figure 6A ) and partial perspective views (Figures 6B-6C); Figures 7A-7B : Figures 6A-6C A front view and a top view of another embodiment of the end fastening device in the variant; and Figures 8A-8C Especially used according to Figure 2A-2D Top view of different variations of the clamping plate in the embodiment. Detailed Implementation

[0078] Figure 1A-1B An embodiment of a dynamic, reciprocating conduit guide device 1 is shown, used for supplying conduits 8, for example, for power and data supply in machinery. The conduit guide device 1 is linearly movable, forming a movable upper segment 1A, a stationary lower segment 1B, and a co-moving turning arc 1C between them. The upper segment 1A is movable in the longitudinal direction L of the conduit guide device 1. The turning arc 1C has a predetermined turning radius or bending radius about the lateral direction Q and perpendicular to the longitudinal direction L. Figure 1A In this design, the pipeline guiding device 1 comprises two flexible sheaths 2 extending longitudinally along the longitudinal direction L, nested and stacked one on top of the other. However, this spatial position is arbitrary, and the pipeline guiding device 1 can also move vertically, for example. Each sheath 2 is implemented as a flexible tube with sufficient flexibility, particularly through suitable configuration and / or material selection, to allow reversible flexible bending of the turning arc 1C with minimal force expenditure and to follow the movement of movable joints or carriers with minimal resistance.

[0079] Each dustproof sleeve 2 (also referred to as a "pod") is specifically designed to prevent dust leakage, primarily to avoid the escape of particles that are inevitably generated, especially due to wear and tear on pipelines and / or support chains. The construction of the flexible sleeve 2 can be chosen, for example, as described in DE 20 2019 103 276 U1 with respect to Figures 9-10, the teachings of which are incorporated herein for the sake of brevity. Other flexible sleeves 2 can also be used, such as the flexible sleeves in the prior art mentioned at the beginning.

[0080] Figure 1A Two end fastening devices 10 are also shown, each disposed on one end of the pipeline guide device 1. The pipeline guide device 1 is attached and fastened to one of two attachment points that are movable relative to each other, for example, on a machine or device (not shown). Figure 1 shows an end fastening device according to DE20 2019 103 276 U1 (see Figures 13A-13D there). Preferred embodiments of the end fastening device according to the invention will be further described below with reference to Figures 2-8, without further mention of... Figure 1A The end fastening device in the process will be described.

[0081] Figure 1B The possible internal division of one of the two sheaths 2 is shown, purely exemplarily, in a cross-section perpendicular to the longitudinal direction L. The sheath 2 can be, for example, composed of multiple individual sheath units made of plastic (not shown) or formed as a one-piece hose with multiple channels serving as receiving portions 7. Figure 1B In the sleeve 2, exemplarily, there are five channel-shaped receiving portions 7 for one or more supply lines 8 or cable bundles, and two support chains 9 in the outer receiving portions, the support chains having a predetermined radius of a turning arc 1C and supporting the unsupported length of the displaced upper segment 1A. The sleeve 2 is made of a flexible, soft-elastic plastic, particularly a thermoplastic, such as PE, PU, ​​TPU, PTFE, expanded PTFE, PP, or similar materials, and has a continuous, unchanging cross-section perpendicular to the longitudinal direction L along its length. The sleeve 2 can be inexpensively manufactured as a cable product using suitable plastic extrusion technology and cut to suitable lengths, for example from about 100 mm to about 1500 mm. All the receiving portions 7 within the sleeve 2 are spatially separated from each other and adjacent to each other in the lateral direction Q. The sleeve 2 dustproofly surrounds the cable 8 or support chains 9 on its longitudinal extension, and thus prevents the escape of particles, for example, due to wear or tear.

[0082] Figure 2A-2BA particularly preferred embodiment of the end-fastening device 20 according to the invention is shown. The end-fastening device 20 can be used at both ends of the pipeline guiding device 1. This end-fastening device has a plurality of identically constructed clamping plates 210, which clamp at... Figure 2A-2D The sleeve 2 is manufactured as a substantially flat rectangular plate, which is made of metal, for example, an extruded aluminum profile. Clamping plates 210 have main surfaces 22 formed on each main side for applying clamping force, and their main direction H is perpendicular to the longitudinal direction L of the sleeve 2 (see...). Figure 1A The clamping plates 210 are arranged in a manner that corresponds to the longitudinal extension of the clamping plate 210 in the main direction. All clamping plates 210 are constructed identically and have two long end sides 211 and two short narrow sides 212 in the main direction H, through which the conduit 8 is threaded transversely.

[0083] Figure 2A-2D The end-fastening device is constructed in more than 20 layers for multiple stacked sleeves 2, and each layer includes multiple modular tension-relieving elements 23A, 23B, 23C, 23D, etc., of different construction types. In each of the four exemplary layers, the same tension-relieving elements 23A, 23B, 23C, or 23D are respectively paired and opposed between two clamping plates 210. Each tension-relieving element 23A, 23B, 23C, or 23D has a clamping surface 232 for receiving one or more of the corresponding channel-shaped receiving parts 7 (see...). Figure 1B Together with the sleeve 2, they are held in a force-locked engagement. The tension-reducing elements 23A, 23B, 23C or 23D are modular and configured to be arranged in rows and opposite each other between the main faces 22 of the clamping plate 210.

[0084] As by Figure 2C As best seen in the side view, each of the identical clamping plates 210 has a retaining region 213, which is specifically used for tension-reducing elements 23A, 23B, 23C, 23D, etc., to hold these tension-reducing elements on the respective clamping plate 210 to prevent displacement in the longitudinal direction L. Figure 2B-2C As best seen, the clamping plate 210 has protruding, opposing retaining regions 213 on its long end sides 211, each retaining region having a profiled cross-section 220 on this end side, which, when viewed in a cross-section or side view, has lateral recesses, wherein... Figure 2A-2D The side recess is implemented by a generally U-shaped groove 221 or a recess that remains continuously unchanged in the main direction on the end side 211. The groove 221 is implemented here mirror-symmetrically with respect to two central planes perpendicular to and parallel to the main surface 22, and has a rounded rectangular cross-section that is approximately half the construction height of the clamping plate 210.

[0085] Different tension-reducing elements 23A, 23B, 23C, 23D, etc., each have two connecting regions 230. These connecting regions have a claw-shaped cross-section relative to the main direction H. This claw-shaped cross-section configuration is used to form-lockingly hook into the side recess or groove 221 in the profile cross-section 220 of the holding region 213 of the clamping plate 210, i.e., to fit into the end-side groove 221. Figure 2A-2D As shown. The connecting region 230 is implemented on both end sides as identical, mirror-symmetrical claws, wherein each claw of a connecting region 230 does not completely occupy half the free height of the end side groove 221, such that on both sides of each clamping plate 210, the tension-reducing elements 23A, 23B, 23C, and 23D can respectively engage with the corresponding connecting region 230 into the profile cross-section 220 of the holding region 213, see [reference]. Figure 2C .

[0086] Between the opposing connection regions 230, a receiving portion 231 is constructed on the back side of the tension-reducing elements 23A, 23B, 23C, and 23D. This receiving portion receives approximately half of the cross-section of the corresponding clamping plate 210. Therefore, the same clamping plate 210 can be used for two consecutive layers of the sheath 2, such as... Figure 2A The three clamping plates 210 located internally in the height direction are shown. The tension-relieving elements 23A, 23B, 23C, and 23D have different clamping surfaces and substantially the same bottom surface for modular use. The tension-relieving elements 23A, 23B, 23C, and 23D can be made of the same soft, elastic, and abrasion-resistant plastic as the sleeve 2 (see above).

[0087] By fitting the connection area 230 in the side recess of the clamping plate 210 in a shape-locking manner, the tension-reducing elements 23A, 23B, 23C, and 23D are held on the respective clamping plates 210 in a way that prevents loss, not only in the longitudinal direction L but also in the direction perpendicular to the main surface 22.

[0088] exist Figure 2A-2D The diagram also shows a special fastening element 24 for supporting the chain 9, which secures the chain 9 to the end fastening device 20 in the longitudinal direction L. The fastening element 24 has a connection area 230 and a receiving portion 231 (not shown) with identical construction on its back side. The corresponding content also applies to... Figure 2A-2D Additional spacing retainers 25 in the upper two layers. These spacing retainers 25 allow lateral misalignment in the lateral direction Q between the opposing tension-reducing elements 23A, enabling the two stacked sleeves (such as...) to be placed separately in the upper two layers. Figure 1A(As shown) are fixed together between the two clamping plates 210. Like the fastening element 24, the spacing retainer 25 also has the same claws in cross-section as the connecting area 230 for holding onto the clamping plate 210. Therefore, the fastening element 24 and the spacing retainer 25 are also securely held and can be fixed onto the clamping plate 210 in the longitudinal direction L and perpendicular to the main surface 22.

[0089] like Figure 2A-2D As further shown, the profile cross-section 220 opens to the outside on both sides of the short, narrow side 212, i.e., it is open and accessible on the sides. The profile cross-section 220 remains continuous along its entire length in the main direction H or between the narrow sides 212. Thus, the tension-relieving elements 23A, 23B, 23C, 23D, the fastening element 24, and the spacing retainer 25 can be optionally modularly mounted on the fastening plate or, as needed, positioned in each location by being pushed in along the main direction H.

[0090] also, Figure 2B A toothed clamping surface 232 is shown as an example, which is used to forcefully hold the conduit 8 and the sheath 2 together on the tension-relieving element 23A (in the upper layer). Here, the clamping surface 232 has teeth or combs extending in the longitudinal direction L, which alternately protrude between the recesses, allowing for a certain degree of deformability to adapt to different diameters of the conduit 8 while simultaneously achieving good frictional locking. The clamping surface 232 is only briefly described by way of example. Planar configurations are also possible, for example in the cases of tension-relieving elements 23B, 23C, and 23D, the difference of which lies particularly in the different construction heights or construction depths of the corresponding clamping surfaces. In addition, tension-relieving elements 23E, 23F, and 23G with concave clamping surfaces or concave / convex clamping surfaces can also be used, such as Figure 2D As shown in the variant. Tension-reducing elements 23E, 23F, and 23G can also have a connection region 230 that works in conjunction with the holding region 213. Figure 2D The difference between the end fastening devices 20' in the variants lies primarily in the different shaped tension-reducing elements 23E, 23F, and 23G.

[0091] like Figure 2A-2D Further, according to another aspect, the end fastening device 20 has two plate connectors 240A and 240B, respectively, configured as separate components, between the lateral end regions 214 of the clamping plate 210, so as to grip and connect the two clamping plates 210 in pairs on one of the lateral end regions 214. For this purpose, each plate connector 240A, 240B has two opposing clamping regions 242, according to... Figure 2A-2DThe clamping region corresponds in construction to the claw-shaped connecting region 230 of the tension-reducing elements 23A...23G, i.e., it has two end claws facing each other. However, the board connectors 240A and 240B each have corresponding clamping regions 242 on their upper and lower sides, respectively, for connection with the two clamping plates 210. Through the board connectors 240A and 240B, the clamping plates 210 are connected to each other in pairs and held together in parallel at a predetermined spacing. For this purpose, the opposing clamping regions 242 are respectively paired and at least form-fitted into the grooves 221 on the end sides of the clamping plates 210, similar to the connecting region 230 (see...). Figure 2C ).exist Figure 2A-2D In the embodiments shown, two types of board connectors 240A and 240B are illustrated, differing only in their construction height, allowing adjustment of the free space between the opposing tension-reducing elements 23A...23G by selecting board connectors 240A and 240B. Identical board connectors 240A or 240B are used on both end regions 214 between the clamping plates 210. These board connectors are also capable of being pushed in laterally in the main direction H and can be released again. Board connectors 240A and 240B have a block-shaped support 24, which is here constructed of a solid material, particularly a fixed-shape, inelastic plastic, such as fiber-reinforced polyamide. The support 243 has vertical spacing retainers for pre-setting the vertical spacing between the clamping plates 210. The main difference between board connectors 240A and 240B lies in the construction height of the support 243, while they share the same construction in other respects, particularly the construction of their vertically and horizontally mirror-symmetrical clamping areas 242. Board connectors 240A and 240B may have a concave notch on one side that leads to a receiving space for a sheath.

[0092] Board connectors 240A and 240B have three through holes 245 distributed in the longitudinal direction L. These through holes are arranged in the same manner within the support body 243 of the board connector and are used for threaded connections via screws 250. The through holes 245 are arranged to align with corresponding through holes 215 of the screws 250 used in the clamping plate 210. The two outer screws 250 in the end region 214 can be used for laterally securing the assembled end fasteners 20 and 20', as shown. Figure 2A As shown in / 2D. For this purpose, threaded bushings can be driven into the corresponding through holes 215 on the lower side of the clamping plate 210, or nuts can be used. The intermediate through holes 215, 245 can be used to fasten the end fastening devices 20; 20' to the attachment part, that is, to the fixing point or the drive member (not shown).

[0093] As by Figure 2A-2D As can be seen further, the connection area 230 of the tension-reducing elements 23A...23G, the fastening element 24, and the spacing retainer 25 also serves as an edge protection part of the end side 211 of the clamping plate 210, so that the pipeline 8 can not come into contact with the end side 211 of the clamping plate 210.

[0094] Figures 3A-3B A variation with end-fastening device 30 is shown, which is exemplarily used here for a two-layer sheath, the only difference being the construction of the clamping plate 310. These clamping plates also have a profiled cross-section 320 with side recesses; however, these side recesses are asymmetrical about the center plane of the clamping plate 310. The clamping plate 310 is constructed in a manner corresponding to a reduction of half in the height direction. Figure 2A-2D The clamping plate 210 in the middle means that the two clamping plates 310 between two consecutive layers must be arranged in a way that is opposite to each other on top of each other. This allows the clamping plates 310 to be manufactured advantageously with less material cost.

[0095] Further simplification of clamping plate 410 in Figures 4A-4B A variation of the end fastening device 40 is shown, in which a substantially flat plate without side recesses is used, which can be manufactured particularly cost-effectively. Figures 4A-4B The embodiments also show that, if necessary, the second aspect of the invention, involving a construction with separate board connectors 240A, 240B, can also be used independently of the first aspect, i.e., the connection between the tension-reducing elements 23A...23G and the clamping plate 410. Figures 4A-4B In the middle, two clamping plates are required for each layer.

[0096] Figures 5A-5C An embodiment of an end-fastening device 50 is shown, which has an alternative configuration to the profile cross-section 520 of a clamping plate 510. The profile cross-section 520 is here configured as a combination of a T-shaped protrusion 527 in cross-section and two mirror-image L-shaped grooves 521, the L-shaped grooves serving as side recesses in the plate body of the clamping plate 510. The profile cross-section 520 is disposed on only one of the two main sides of the clamping plate 510 and is mirror-symmetrical about the vertical longitudinal center plane of the clamping plate 510. Figure 5A In the case of clamping plate 510, the profile cross-section 520 is also continuous and identical in the main direction H and open on both sides to push the tension-relieving element 523 or plate connector 540, etc., in along the main direction H. The tension-relieving element 523 or plate connector 540 has a corresponding connection area 530 formed as a shape-locking mating part, which has a matching profile cross-section.

[0097] Figures 6A-6C Another embodiment of the end-fastening device 60 is shown, which has an alternative configuration of the profile cross-section 620 of the clamping plates 610, wherein each clamping plate 610 has two retaining regions 613. The clamping plates each have retaining regions 613 for tension-relieving elements 623 on two main surfaces 622. The retaining regions 613 here also form a profile cross-section 620 perpendicular to the main direction H, which has double-sided recesses formed, for example, by corresponding T-slots 621 that are fully embedded in the plate body of the clamping plates 610.

[0098] Two retaining regions 613 are staggered in the longitudinal direction L, i.e., perpendicular to the main direction H, on one of two opposing main surfaces 622 of the clamping plate 610, and are arranged in a rotationally symmetrical manner about the main central axis M. The retaining regions 613 are also centrally located in one of the two width halves of the clamping plate 610. Therefore, by means of the construction of the clamping plate 610, the tension-reducing element 623 with correspondingly matched connecting areas and the plate connector (not shown) can also act on both sides of the clamping plate. Figures 5A-5C and Figure 6A Other features in -6B correspond to Figure 2A-2D The features described above.

[0099] Another variation of the end fastening device 70 is in Figures 7A-7B As shown, in this end-fastening device, the clamping plate 710 can, for example, have Figures 6A-6C The cross-section of the clamping plate 610 in the middle. Figures 7A-7B As shown, even without a corresponding through hole in the clamping plate 710, lateral fixation is possible via screws through the side-projecting arrangement of the plate connector 740, as described above. Figure 2C It has a through hole 745 as described.

[0100] Figures 8A-8C Show Figure 2A-2D A variation of the clamping plate 210. Additional through holes 235 for threaded connections are provided between the lateral end regions 214, depending on the drilling scheme, to improve the clamping effect as needed, for example in the case of a multi-layer end fastening structure.

[0101] List of reference numerals Figure 1A-1B : 1. Pipeline guiding device 1A Upper Section, 1B Lower Section, 1C Turning Arc 2. Package 7 Receiving Section 8. Supply pipelines 9 Support Chains 10. End fastening equipment L (vertical direction) Q. Horizontal direction Figure 2A-2D : 20; 20' End fastening device 24 Fastening components 25 Spacing retainer 210 Clamping Plate 211 End side (long side) 212 Narrow side (end side) 213 Maintain Area 214 End Region 22 Main side 23A, 23B, 23C, 23D, 23E, 23F, 23G Tension-reducing elements 230 Connection area (with claws) 231 Receiving Department 232 Clamping surface 240A and 240B board connectors 242 Fixture Area 243 Support 215, 245 Through holes (for screws) 250 Fastening Screws L (vertical direction) H represents the principal direction (corresponding to the lateral direction Q). Figures 3A-3B ; Figures 4A-4B 30; 40 End fastening equipment 310; 410 clamping plates 320 cross-section 240A and 240B board connectors Figures 5A-5C ; Figures 6A-6C 50; 60 End fastening equipment 510; 610 Clamping plates 513; 613 Maintain area 520; 620 cross-section 521; 621 slots 622 Main side 523; 623 Tension-reducing elements 527 Protrusion 530; 630 Connection Area 540 board connector H Main direction M Main Central Axis Figures 7A-7B 710 Clamping plate; 740 Board connector; 745 Through hole Figures 8A-8C 210 Clamping plate; 214 End area; 215, 235 Through holes

Claims

1. An end fastening device (20; 30; 40; 50; 60) for fastening the end of a pipeline guiding device (1), the pipeline guiding device being reciprocating and having at least one longitudinally elongated flexible sheath (2), the flexible sheath having a plurality of channel-shaped receiving portions for the pipeline, the receiving portions extending from a first end to a second end in the longitudinal direction (L); The end fastening device includes: - At least two clamping plates (210), each clamping plate having a substantially flat main surface (22) for applying clamping force, wherein the clamping plates can be arranged to have a main direction (H) perpendicular to the longitudinal direction of the sleeve; and - Multiple tension-reducing elements (23A...23G), each having a clamping surface (232) for one or more pipelines and arranged opposite each other between the main surfaces facing each other of the clamping plate; The at least two clamping plates (210) each have a holding area (211) for the tension-reducing element, the holding area holding the tension-reducing element on the clamping plate in a direction parallel to the main surface to prevent displacement in the longitudinal direction; wherein the at least two clamping plates (210) each have two long end sides (211) parallel to the main direction (H). Its features are, The retaining region (211) forms a profile cross-section (220) with a side recess (221), and The tension-relieving elements (23A...23G) each have at least one connecting region (230) corresponding to the profile cross-section of the retaining region, for form-lockingly hooking the side recess so as to hold the tension-relieving elements (23A...23G) on the corresponding clamping plates (210) in a direction perpendicular to the main surface (22), wherein the profile cross-section is formed by a groove (221) on each of the two end sides (211), and the tension-relieving elements (23A...23G) are respectively provided with a clamping plate (210). The clamping plate (210) is provided with a corresponding end-side connection area (230), and is implemented as a flat plate having a flat main surface (22) in the front view or having a plate thickness that remains unchanged in the main direction. Between the corresponding two main surfaces facing each other, there are multiple pairs of tension-reducing elements (23A...23G) arranged opposite each other. In the multiple pairs, the clamping plate (210) of each tension-reducing element (23A...23G) is configured to force-lock hold the corresponding multiple pipelines.

2. The end fastening device according to claim 1, wherein, The clamping plate has two long end sides and two short narrow sides (212), characterized in that the profile cross section (220) is open to the outside on at least one of the short narrow sides (212), and / or the profile cross section (220) extends over at least one major portion of the length of the clamping plate (210).

3. The end fastening device according to claim 1 or 2, characterized in that, The connection area (230) forms an edge protection portion for the pipeline that protrudes at the end.

4. The end fastening device according to claim 1 or 2, characterized in that, The retention regions (213; 513) are mirror-symmetrically configured.

5. An end fastening device (20; 30; 40; 50; 60) for fastening the end of a pipeline guiding device (1), the pipeline guiding device being reciprocating and having at least one longitudinally elongated flexible sheath (2), the flexible sheath having a plurality of channel-shaped receiving portions (7) for the pipeline, the receiving portions extending from a first end to a second end in the longitudinal direction (L); The end fastening device includes: - At least two clamping plates (210), each clamping plate having a substantially flat main surface (22) for applying clamping force, wherein each clamping plate has two lateral end regions (214) and two long end sides (211) extending parallel to the main direction (H), and the clamping plates can be arranged to have end sides perpendicular to the sleeve (2); and - A plurality of tension-relieving elements (23A...23G), each having a clamping surface (232) for one or more pipelines and arranged opposite each other between the main surfaces facing each other of the clamping plates; characterized in that two separate plate connectors (240A; 240B) are provided to hold the at least two clamping plates (210) on one of two lateral end regions (214), wherein each plate connector is manufactured in one piece and has two opposing clamping regions (242), the clamping regions being at least form-fitted to the end region (214). They work together, and the plate connectors (240A; 240B) are configured to hold the at least two clamping plates together, the clamping plates (210) being implemented as flat plates having a flat main surface (22) in a front view or having a plate thickness that remains constant in the main direction, wherein a plurality of pairs of tension-relieving elements (23A...23G) are arranged opposite each other between the respective two main surfaces facing each other of the clamping plates (210), in which the clamping plates (210) of each tension-relieving element (23A...23G) are configured to force-lock hold the respective plurality of pipelines.

6. The end fastening device according to claim 5, characterized in that, The two board connectors (240A; 240B) hold the two clamping plates (210) together in the longitudinal direction (L) and perpendicular to the main surface (22) by means of their clamping area (242).

7. The end fastening device according to claim 6, characterized in that, The clamping region (242) works in conjunction with the concave profile cross section (220) of the clamping plate (210), and / or the clamping region (242) is configured to enclose the two end sides (211) of the clamping plate (210) in the end region (214) of the clamping plate.

8. The end fastening device according to claim 7, characterized in that, Each clamping area (242) has two opposing claws in the longitudinal direction, which work together with the laterally concave profile cross section (220) of the clamping plate (210) and / or to grip the two end sides (211) of the clamping plate (210).

9. The end fastening device according to any one of claims 5 to 8, characterized in that, Each board connector (240A; 240B) includes a support (243) that constitutes a spacing retainer for pre-given vertical spacing between the clamping plates.

10. The end fastening device according to any one of claims 1, 2, or 5 to 8, characterized in that, Each tension-reducing element (23A...23G) protrudes in the longitudinal direction beyond the end side (211) of the clamping plate (210) and forms a receiving portion (231) on the back side opposite to the clamping surface (232), in which the corresponding clamping plate (210) can be received at least partially.

11. The end fastening device according to any one of claims 1, 2, or 5 to 8, characterized in that, Multiple tension-reducing elements (23A...23G) are arranged in a row in the main direction (H) and / or held on the clamping plate (210) in a displaceable manner and / or held on the clamping plate (210) in a detachable manner.

12. The end fastening device according to any one of claims 1, 2, or 5 to 8, characterized in that, The clamping plate (210) is made of metal or reinforced plastic.

13. The end fastening device according to claim 12, characterized in that, The clamping plate (210) is made of extruded metal profile.

14. The end fastening device according to any one of claims 1, 2, or 5 to 8, characterized in that, - The tension-reducing elements (23A...23G) are made of one piece of plastic; and / or The tension-reducing elements (23A...23G) are made of a softer material than the clamping plate (210) and / or the plate connector (240A; 240B).

15. The end fastening device according to claim 14, characterized in that, The board connectors (240A; 240B) are made of a harder plastic than the tension-reducing elements (23A...23G).

16. The end fastening device according to any one of claims 1, 2, or 5 to 8, characterized in that, - The clamping plate (210) has at least two through holes for threaded connection in each of the two lateral end regions (214) and one or more additional through holes (215) for threaded connection between the end regions (214) along the main direction (H).

17. The end fastening device according to any one of claims 5 to 8, characterized in that, The board connector (240A; 240B) has at least two through holes (245) for threaded connections, the through holes being arranged to align with corresponding through holes (215) for threaded connections in the clamping plate (210).

18. The end-fastening device according to any one of claims 1, 2, or 5 to 8, wherein the end-fastening device is used to fasten at least two sleeves (2) in an overlapping layer, the end-fastening device comprising at least three clamping plates (210) arranged overlapping each other, wherein, In the assembled state, tension-reducing elements (23A...23G) are held on both sides of the clamping plate in the middle.

19. The end fastening device according to any one of claims 1, 2, or 5 to 8, characterized in that, The tension-reducing elements (23A...23G) protrude beyond the clamping plate in the longitudinal direction or in the main direction perpendicular to the clamping plate (210), and at least partially enclose the corresponding end side (211) of the clamping plate (210).

20. The end fastening device according to any one of claims 5 to 8, characterized in that, The two opposing clamping areas (242) of each board connector (240A; 240B) are vertically opposed to each other, the vertical direction being perpendicular to the longitudinal direction (L) and extending perpendicular to the main direction (H).

21. The end fastening device according to any one of claims 5 to 8, characterized in that, Each board connector (240A; 240B) has a concave notch on the side that leads to a receiving space for the sheath.

22. A conduit guiding device (1) for conduits, particularly for cleanroom applications, wherein the conduits are, for example, cables, hoses, or the like, the conduit guiding device comprising: - At least one longitudinally elongated flexible sheath (2), the flexible sheath being reciprocating and having a plurality of channel-shaped receiving portions (7) for the pipeline (8), the receiving portions extending from a first end to a second end in the longitudinal direction (L); - A first end fastening device (20) for the first end of the sheath and a second end fastening device (20) for the second end of the sheath. - wherein the first end fastening device (20) and / or the second end fastening device (20) are end fastening devices (20) according to any one of claims 1 to 21.

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