DE102014114153B4 - Covering element for cables - Google Patents

Abstract

Cover element (1, 1a) for lines, in particular electrical lines or cables, having a longitudinal direction (L) extending substantially parallel to a direction of the lines and a transverse direction (Q) oriented perpendicular to the longitudinal direction (L), the cover element (1 , 1a) comprises an element body (2) of at least one polymeric material, preferably of at least one electrically non-conductive polymeric material and at least one reinforcing element (3, 30) of metal, the element body (2) at least between its along the longitudinal direction ( L) extending longitudinal edge regions (5, 6) and its along the transverse direction (Q) extending frontal edge regions (7, 8), the top of the cover (1, 1a) or at least a portion of the top of the cover (1, 1a) , and wherein the cover member (1, 1a) between lateral support portions (4) has a longitudinally extending n interior or empty space (17) for receiving the lines forms, wherein for the positive connection of two cover elements (1, 1a) of the element body (2) in the region of the front edge regions (7, 8) each have at least one connecting portion (10, 11) in which the at least one first connecting section (10) arranged on a first end-side edge region (7) is designed for positive engagement in the at least one second connecting section (11) arranged at a second end-side edge region (8), wherein the at least one reinforcing element (3 , 30) is formed by a metallic flat material, which extends in the longitudinal and transverse directions (L, Q) into the connecting portions (10, 11), wherein the reinforcing element (3, 30) at its two perpendicular to the longitudinal direction (L) extending ends or end faces of the connecting portions (10, 11) is shaped accordingly and wherein the at least one reinforcing element (3, 30) i Essentially completely surrounded by the material of the element body (2).

Description

The invention relates to a cover.

Loose grounded cables such as electrical wiring, cables, hoses, etc. are a major source of danger for tripping accidents. Ideally, this is avoided by routing which avoids walk-in or driveable areas, but unfortunately this is not always possible. Therefore, cables must be laid so that on the one hand the risk of tripping is minimized and on the other hand, the lines are protected from damage. For this purpose, existing cable bridges or floor channels are used from cover profiles. These known cover profiles are one or more parts executed and largely rigid plastic profiles that receive the corresponding lines, bundle and also provide protection of the lines against mechanical damage. By convex on the top of their cross-section is achieved with proper installation a stepless or largely continuous transition between the top of the laid profile and the walking surface and thus prevents tripping.

Particular problems occur in the case of live cables, since in this case additional insulation of the cables must be ensured by the cable bridge. With a conductive cable bridge, damaged cables could power the cable bridge, resulting in injury and fire unless other protective measures have been taken.

From the prior art, a variety of cable bridges is known. That's how it describes DE 101 48 937 A1 a cover made of a plastic profile body covering profile for lines with at least one channel for receiving at least one line. The DE 198 10 554 C1 discloses a protective bridge for cables consisting of a base part and a bridge part. Base part and bridge part are made of plastic.

Also known from the prior art cable bridges, which are suitable for heavy-load traffic and therefore suitable, for example, at construction sites. Such a cable bridge describes z. B. the US 3,888,186 A which comprises a body of a polymer which may be reinforced with a meshwork, for example of metal.

Concrete existing, frontally interconnectable covers for buried cables are from the GB 266 433 A known, which are used, for example, to secure cables laid in the ground against impact injuries.

Furthermore, the describes JP 2006 121 766 A a cover member comprising a sheet metal reinforcing member. Another cover element, which is equipped with connecting sections and is therefore designed for the positive connection of a plurality of such cover elements, is made of US 5,095,822 A known. Further, the US 2007/0246259 A1 a further multi-part cable bridge, in which a plurality of such multi-part cable bridges can also be strung together by means of provided connecting portions.

• • ein sicheres und schnelles Verlegen der Leitungen ermöglichen,
• • einen wirksamen Schutz der Leitungen vor Beschädigung bieten,
• • eine elektrische Isolierung stromführender Leitungen bewirken,
• • nicht am Untergrund befestigt werden müssen,
• • ein hohes Eigengewicht besitzen und
• • eine Verminderung der mit den am Boden liegenden Kabeln verbundenen Stolpergefahr sicherstellen.

Thus, although solutions are found for cable bridges in the prior art, there is still a need for cover elements for cables, the

• • enable a safe and fast laying of the cables,
• • provide effective protection of the cables from damage,
• • cause electrical insulation of live lines,
• • do not need to be attached to the ground,
• • have a high dead weight and
• • Ensure a reduction in the risk of tripping connected to the cables lying on the floor.

This is where the invention starts. It should be shown a cover, which allows a safe and fast laying of the lines, provides effective protection of the lines from damage, electrical insulation of live lines causes and ensures a reduction in the risk of tripping connected to the ground lines. This object is achieved by the cover according to claim 1.

The present invention provides a covering element for lines, in particular electrical lines or cables, with a longitudinal direction extending substantially parallel to the direction of the electrical lines and a transverse direction oriented perpendicular to the longitudinal direction. The cover element, which has an extension I _P in the longitudinal direction and an extension q _P in the transverse direction, has an element body made of a non-electrically conductive polymeric material and at least one reinforcing element made of metal.

According to the present invention, the element body in the region of the end-side edge regions in each case at least one connecting portion, wherein in a first end face Edge region arranged at least one connecting portion for positive engagement in the at least one arranged in a second end-side edge region connecting portion is formed. The two corresponding connecting portions of the element body ensures that several cover elements can be laid without gaps to a longer cable bridge. According to the invention, the at least one reinforcing element is formed by a metallic flat material which extends in the longitudinal and transverse direction as far as into the connecting sections. The reinforcing element is formed at its two perpendicular to the longitudinal direction ends or end faces of the connecting portions accordingly. According to the invention, the reinforcing element made of metal is substantially completely enclosed by the material of the element body.

In the context of the present application, "substantially completely enclosed" is understood to mean that the element body completely envelopes the metal element, with the exception of any small-format recesses which may be present due to manufacturing technology. The recesses are dimensioned in any case so small that an electrical contact between the laid under the cover element lines and the sheet metal element is excluded. According to a particularly preferred embodiment, these manufacturing-related recesses are subsequently provided with closure elements, wherein these closure elements are made of an electrically non-conductive material. Particularly preferably, the closure elements are made of the same material from which the element body is made.

The at least one connecting section of the first end-side edge region of the element body is preferably around at least two pins and at least one connecting section of the second end-side edge region of the element body is formed around at least two recesses designed for the positive engagement of the pin. The said recesses can completely penetrate the element body and therefore also be formed as perforations. Pins and recesses preferably have a tapered shape, whereby a particularly simple and fast connection is made possible. Pins and recesses may extend in the longitudinal direction of the element body or perpendicular to the longitudinal and transverse directions of the element body.

According to a particularly preferred embodiment of the present invention, the at least one connecting section of the first end-side edge region of the element body is a projection provided with two undercuts in the transverse direction Q and at least one connecting section of the second end-side edge region of the element body the longitudinal side edge regions arranged, each equipped with an undercut projections. The projection of the connecting section arranged in the first end-side edge region is designed to engage in the undercuts of the connecting section arranged in the second end-side edge region and the two projections of the connecting section arranged in the second end-side edge region are designed to engage in the undercuts of the connecting section arranged in the first end-side edge region. It is therefore a dovetailed connection.

The at least one reinforcing element made of metal extends into the connecting sections of the element body and also gives these areas dimensional stability and an increased dead weight. Advantages also arise in particular when using multiple cover elements as a cable bridge.

This embodiment enables a particularly simple and fast connection of individual cover elements to a longer cable bridge. The said connecting portions can be easily molded in the production of the element body and ensure a simple and quick to establish and thereby permanent connection of the individual cover elements.

The cover according to the invention enables fast, safe and easy installation of cables, as it can be extremely quickly laid as a cable bridge at dangerous locations and also dismantled, creating a special use in rooms where electrical cables must be laid in ever changing orientation Benefits. An example of such rooms are operating rooms of hospitals in which technical devices are built around the operating table in ever changing order.

The cover element according to the invention has a laterally limited by its resting on a support surface or on a support surface supporting portions inside or empty space in which electrical lines can be easily absorbed. If the respective interior space or empty space is open on the underside of the cover elements, the lines are laid in the desired manner, for example, when the cover elements are used as a cable bridge, for example firstly. Subsequently, then one or more cover elements can be easily placed over the lines, so that they are completely absorbed by the cover. In the case of a longer cable bridge, a plurality of cover elements are fastened to each other by means of their connecting elements.

The inventively provided at least one reinforcing element made of metal, it is ensured that the cover by the reinforcing element a high mechanical resistance, a very good dimensional stability and a high weight are awarded. Damage to the covered by the cover cables or cables are thus safely avoided. In the case of cables or cables already laid in a damaged state, the covering element according to the invention also avoids the risk of electric shocks and fires, in that the at least one reinforcing element is completely or essentially completely made of the polymeric material at least on the inner surfaces of the inner or empty space is enclosed by the element body, so it is ensured that exclusively made of electrically non-conductive plastic parts come into contact with the laid under or in the cover elements lines. The cables are thus additionally electrically isolated, which significantly reduces the risk of accidents.

Finally, the covering element according to the invention reduces the risk of tripping over cables lying on the ground by largely equalizing the unavoidable unevenness, fixing the cables and not slipping them, but it does not have to be fastened.

According to one aspect of the invention, the at least one reinforcing element is formed by at least one sheet metal element which preferably has an extension I _M in the longitudinal direction and an extension q _M in the transverse direction, where 0.5 × q _P ≦ q _M ≦ q _P and 0.5 * I _P ≦ I _M <I _P. The element body has for supporting on a support surface provided on support portions, wherein the at least one planar element made of metal, at least on its surface facing the support surface is substantially completely enclosed by the element body. The element body forms the upper side of the cover element at least with its longitudinal edge areas extending along the longitudinal direction and its front edge areas extending along the transverse direction. The cover element has a limited by its resting on the support surface serving support portions and the underside of the element body empty space.

According to one embodiment of the present invention, the at least one planar element made of metal forms a cover, wherein the cover is arranged on a side facing away from the support surface of the element body, serving as a tread surface top of the cover. The cover engages positively in a recess of the element body, the element body with its along the longitudinal direction extending longitudinal edge regions and with its along the transverse direction extending frontal edge regions, the cover rotates like a frame and forms the top of the cover together with the cover. Since in this embodiment, the sheet metal element forms a cover, arranged in a recess of the element body accessible from above and surrounded by the element body like a frame, it is ensured that parts made exclusively of electrically non-conductive plastic come into contact with the lines laid under the cover element come. The cables are thus additionally electrically isolated, which significantly reduces the risk of accidents.

According to a preferred embodiment of the present invention, the at least one sheet metal element is substantially completely enclosed by the element body at all of its surfaces. In this embodiment, it is not only ensured that exclusively made of electrically non-conductive plastic parts come into contact with the laid under the cover element lines, but a complete electrical insulation of the metal-made element to the outside. The element body forms in this case also serving as a tread surface of the cover.

According to a further preferred embodiment of the present invention, the planar element ( 3 ) of metal in the longitudinal direction of an expansion I _M and in the transverse direction of an expansion q _M , wherein 0.7 · q _P ≤ q _M ≤ q _P and 0.8 · I _P ≤ I _M <I _P , preferably 0.8 Q _P ≦ q _M ≦ q _P and 0.9 × I _P ≦ I _M <I _P , more preferably 0.9 × q _P ≦ q _M ≦ q _P and 0.95 × I _P ≦ I _M <I _P are. Through these embodiments, it is increasingly ensured that the flat metal element extends over a substantial part of the element body and thus ensures its dimensional stability and impact resistance.

Preferably, the element body and the sheet metal element are convex in the direction of the top of the cover. By a convex shaping a flowing, continuous transition from the support surface is ensured to the cover and thereby further reduces the risk of tripping.

Embodiments according to which the sheet-like element made of metal substantially corresponds to the shape of the invention are particularly preferred Having element body. In these cases, the flat element of metal gives the cover over its entire extent of dimensional stability and an increased weight. This also applies to the embodiments in which the sheet metal element is a cover.

In particular, the metal sheet element preferably has at least one connecting section formed analogously to the connecting section of the element body, the at least one connecting section arranged in a first end-side edge region for positive engagement in the at least one connecting section arranged in a second end-side edge region is trained. In this case, therefore, the flat element of metal extends into the connecting portions of the element body and gives at least parts of these areas dimensional stability and an increased dead weight. Advantages arise in particular when using multiple cover elements as a cable bridge.

According to a particularly preferred embodiment of the present invention, the at least one connecting section of the first frontal edge region of the sheet metal element is a projection provided with two undercuts in the transverse direction Q and at least one connecting section of the second frontal edge region of the planar one Elements of metal arranged around two in the longitudinal edge regions, each equipped with an undercut projections. The projection of the connecting section arranged in the first end-side edge region is designed to engage in the undercuts of the connecting section arranged in the second end-side edge region and the two projections of the connecting section arranged in the second end-side edge region are designed to engage in the undercuts of the connecting section arranged in the first end-side edge region. It is therefore a dovetailed connection.

According to a further aspect of the invention, the respective cover member has a channel or channel-like inner or empty space for receiving the lines, which is closed at the bottom of the cover by a bottom and at the top of the cover by a removable and / or hinged lid , The inner or void space in this embodiment is bounded laterally by two strip-like base body sections formed integrally with the bottom of the polymeric material forming the longitudinal edge regions of the cover element, i. H. each extending in the longitudinal direction of the cover. At least one reinforcing element made of metal is enclosed in each of these lateral base body sections and surrounded by the polymeric material, for example in the form of a U-profile. These two longitudinal reinforcing elements, which in turn preferably extend without interruption between the front-side edge regions of the cover element into its connecting sections, are connected to one another by at least one flat cover element provided in the bottom and completely or substantially completely enclosed by the polymeric material. The latter consists of a metallic flat material, preferably of a steel with spring properties (spring steel).

In this embodiment too, the cover element preferably has the connecting sections on the longitudinal edge regions.

The cover element generally has a cross-section that remains constant over its entire extent in the longitudinal direction or that remains substantially constant. This makes it possible to form a cable bridge constructed from a plurality of cover elements with a constant cross section over its entire extent. The risk of accidents is thereby further reduced because people who cross the cable bridge do not have to adjust to different heights or cross sections in different sections of the cable bridge.

Preferably, the element body in the longitudinal edge regions on a transversely outwardly decreasing height. This design of the longitudinal edge regions also ensures a flowing, stepless transition from the support surface to the cover element, thereby further reducing the risk of stumbling. This effect is also achieved particularly well by an embodiment according to which the element body is concave in the longitudinal edge areas in the direction of the upper side of the cover element.

Particularly preferably, the element body is formed in one piece, resulting in advantages in the production of the element body, in particular during production by injection molding or pressing. Namely, the production of the element body is preferably by injection molding or pressing.

Particularly preferably, the cover has a small height compared to its width. Particularly preferably, the maximum height of the cover element is less than 25% of the width and is less than 5 cm, preferably less than 4 cm, particularly preferably less than 3 cm, more preferably less than 2.5 cm and most preferably less than 2 cm.

Preferably, the element body is made of a material with a high coefficient of friction to the material of the support surface and / or of a material with high specific gravity and / or of a material with high rigidity. By the above materials, a high resistance of the element body against mechanical stress, secure adhesion of the cover on the ground and a high contact weight of the cover is achieved, which also prevents slipping.

According to a further, particularly preferred embodiment of the present invention, insert elements are provided, wherein the insert elements are arranged in the support portions provided on the support surface of the element body. Preferably, the insertion elements are formed positively to corresponding recesses of the element body. The use of insert elements makes it possible to manufacture the element body and insert elements from different materials. Thus, for example, the element body can be made of a plastic with high rigidity and high specific gravity, while the insert elements have a particularly high coefficient of friction to the material of the support surface. As a result, the cover element is simultaneously given a high contact weight and a high coefficient of friction to the ground.

Particularly preferably, the insert elements are designed as brush strips or as suction cups. By such insert elements a particularly good adhesion of the cover is achieved on the support surface.

The term "polymeric material" or "plastic" in the following all polymer materials are summarized, regardless of whether they have a themoplastic or a crosslinking bond (such as rubber or polyurethane reaction resins) or whether they are hard or soft. By the term "electrically non-conductive" is meant a leakage resistance greater than 100 kilohms, i. H. static dissipative materials are combined with insulators and referred to as "electrically non-conductive".

Accordingly, the element body is preferably formed from an electrically non-conductive rubber, an electrically non-conductive thermoplastic, an electrically non-conductive rubber or mixtures thereof. The electrically nonconductive, thermoplastic material is preferably an electrically nonconductive, thermoplastic elastomer, particularly preferably thermoplastic polyurethane or a compound of the styrene block copolymer SEBS.

As a thermoplastic material for the production of the cover is, for example, at least one material from the group of compounds of ethylene vinyl acetate (EVA), the polyvinyl acetate, compounds of plasticizers modified polyvinyl chloride, as well as thermoplastic elastomers and their compounds such. Polyolefin elastomers (TPO / POE), styrene block copolymers (SEBS / SEPS), thermoplastic polyurethanes (TPU), thermoplastic copolyamide elastomers, thermoplastic copolyester elastomers.

The material used for the production of the cover ensures electrical insulation of the covered lines, ensures a high mechanical resistance and gives the cover a high contact weight. Additives such. B. Dyes may be included in the element body.

Regardless of or in addition, the element body can be designed in a colored color in a signal color, at least in a partial region of its upper side, which avoids overlooking the cover element laid on a substrate.

The cover preferably has on its upper side a groove element or groove profile extending in the longitudinal direction L of the cover element, which counteracts a risk of slipping and ensures a secure footing on the cover element, which likewise reduces the risk of accidents due to slipping, for example.

Preferably, the cover is provided on its upper side facing away from the element body with an abrasion-resistant film, wherein the film is preferably made of polyurethane. By replacing the film, the cover can be easily put in a visually restored condition. Particularly preferably, a transparent film is printed on its underside facing the cover. As a result, the cover, for example, be provided with a signal color, which in turn reduces the risk of accidents. This will u. a. Provisions of the Workplace Directive, in the form of two-colored safety markings. The printing is done so that the background on which rests the transparent film, monochrome, z. B. is colored yellow or white and the film itself, streaky black or red is printed.

The present invention also encompasses the use of one of the cover elements described above as a cable bridge and the use of a A plurality of cover elements described above as a cable bridge, wherein the cover elements are interconnected by means of their connecting portions.

The production of the element element takes place according to a method known to the person skilled in the art, preferably by extrusion coating, by casting, by an assembly injection molding, by a film injection molding technique or an overmolding technique. Particularly preferably, the preparation is carried out by a 2-component injection molding process. In this case, first, for example, first partial elements of the element body are produced in the form of pre-molded parts or provided or injection-molded. Then, for example, formed as a sheet-like element reinforcing element made of metal with the protuberances in the mold is arranged so that the protuberances space the reinforcing element of surfaces of the mold and the subsequent encapsulation, the at least one reinforcing element is completely enclosed by the polymeric material. However, the pre-molded parts are preferably not only used as a spacer during encapsulation, but with appropriate choice of material as slip protection, d. H. as a non-slip pad for the cover. By using two different components, the color design of the element body can be done in one operation during its production.

In a further development of the invention, the cover is preferably also designed so
that the at least one polymeric material is a rubber or thermosetting plastic, but preferably a thermoplastic,
or
the at least one polymeric material is connected to the at least one reinforcing element in a material-locking (eg adhesive) and / or form-fitting manner, for example also using recesses, openings and / or bores in the at least one reinforcing element,
or
the at least one reinforcing element is pretreated for a cohesive connection of the polymeric material on its surface, for example galvanized or provided with a primer layer, for example with a PA and / or PC plastic layer produced by powder coating,
or
that the support portions of the cover are made of a non-slip material, for example of a TPU material or plastic, which is also used for shoe soles and is offered for example under the brand Elastollan Soft by BASF and has a high wet skid resistance and abrasion resistance, preferably made of a TPU material with a Shore A hardness of 40-80, preferably with a Shore A hardness of 60,
or
that Metallische Abstützt- or foot elements are provided for direct or indirect support on a substrate at least in a partial area between the frontal edge regions, wherein the distance of these Abstützt- or foot elements in the transverse direction of the cover is significantly smaller than the corresponding width the cover element, approximately equal to the width of the internal or empty space for receiving the lines, namely to increase the load capacity by reducing the span,
or
that the connecting portions are designed for positively connecting at least two cover elements to a cable or conductor bridge so that no assembly order must be observed in this connection,
or
that the at least one reinforcing element is only partially or completely covered with the at least one polymeric material,
or
the at least one polymeric material forms only or substantially only the top side and the support sections of the cover element,
or
that the upper side of the covering element is structured, for example provided with ribs and / or nubs,
or
that the upper side or upper surface of the covering element is colored, for example one or more colors and / or luminescent,
or
that the cover with a lighting, z. B. is equipped in the form of at least one LED,
or
that the polymeric material is a chemical-resistant, in particular also oil-resistant material,
or
in that the polymeric material forming the upper side of the cover element at least partially constitutes a scratch and / or abrasion resistant material, for example a TPU material with a Shore D hardness of 40-80, preferably with a Shore D hardness of 56, for example a material sold under the name "Desmopan 3055",
or
in that at least one polymeric material has inserts of hard material for supporting the injection pressure during the transfer and / or injection molding of the at least one polymeric material,
or
in that inserts of a luminescent material are provided in the at least one polymeric material,
wherein the aforementioned features may be present individually or in any combination.

The term "substantially" or "approximately" or "approx." In the context of the invention means deviations from the exact value by +/- 10%, preferably by +/- 5% and / or deviations in the form of for Function insignificant changes.

Further developments, advantages and applications of the invention will become apparent from the following description of exemplary embodiments and from the figures. In this case, all described and / or illustrated features alone or in any combination are fundamentally the subject of the invention, regardless of their summary in the claims or their dependency. Also, the content of the claims is made an integral part of the description.

The invention will be explained in more detail with reference to the figures of embodiments. Show it

1 a plan view of an embodiment of a cover according to the invention;

2 a perspective view from above of the cover according to 1 ;

3 a perspective view from below of the cover according to 1 ;

4 a perspective view of a cover consisting of several covering or cable bridge;

5 a cross-section of another embodiment of a cover according to the invention;

6 a perspective view of the cover of the 5 ;

7 the inner metallic reinforcing element in section, together with two pre-molded parts;

8th in a perspective view, the two pre-molded parts of 7 ;

9 the inner metallic reinforcing element in perspective view;

10 in a partial representation, the ends of two cover elements to be joined together 5 in plan view;

11 and 12 the ends of two covering elements which follow one another in the covering device or in the cable bridge in a bottom view before joining ( 11 ) and after connecting ( 12 );

13 a cross-section of another embodiment of a cover according to the invention;

14 and 15 each a plan view of the cover of the 13 ;

16 a plan view of the cover of the 13 but with the covers removed and with indicated inner metal inserts or reinforcing elements,

17 a representation similar 7 when molded onto the reinforcing element pre-molded parts;

18 to explain in perspective the pre-molded parts of 17 with the reinforcing element omitted;

19 similar in a presentation 17 a further embodiment of the cover according to the invention;

20 the elements of the cover of the 19 in a perspective exploded view;

21 and 22 similar in representations 17 further embodiments of the cover according to the invention.

The 1 to 3 show different views of an embodiment of a cover according to the invention 1 for cables, including electrical cables or cables in a schematic representation.

The cover element 1 has a longitudinal direction L extending substantially parallel to the direction of the lines and a width or transverse direction Q oriented perpendicular to the longitudinal direction L. The cover element 1 has a one-piece element body 2 made of polyamide and a cover 2.1 trained flat element made of a metallic material, eg. As aluminum or steel. The element body 2 is to be made for example by injection molding. Web-like support sections 4 at the bottom of the element body 2 are the condition of the covering 1 provided on a surface or on a support surface. The cover 2.1 is on the side facing away from the support surface, serving as a tread surface top of the cover 1 arranged and engages positively in a recess of the element body 2 which results in a stepless, closed surface. The cover 2.1 has on its upper side a profiling, which consists of several each extending in the longitudinal direction L grooves 9 is formed, counteracts a risk of slipping and ensures a secure footing on the cover.

The element body 2 extends in the along the longitudinal direction L and the transverse direction Q of the cover 1 extending edge regions 5 . 6 . 7 . 8th of the cover 1 to the top of the cover 1 and forms the surface of the cover in these edge regions 1 out.

The cover element 1 or the element body 2 have in the longitudinal direction L an extension I _P , in the transverse direction Q an extension q _P and perpendicular to the longitudinal direction L and the transverse direction Q a maximum height H <25% q _P , while the sheet-like element 3 made of metal in the longitudinal direction L has an extension I _M and in the transverse direction Q has an extension q _M. In the embodiment shown, q _M = 0.8 * q _P and I _M = 0.9 * I _P. By this dimensioning of the sheet metal element is a sufficient stability of the cover 1 ensured.

From the 2 shows that the entire cover 1 including its longitudinal margins 5 . 6 is formed on its upper side about axes parallel to the longitudinal direction L convexly curved. This ensures that the cover 1 as flat as possible rests on the ground, has the least possible slope, at the edge areas 5 and 6 infinitely or substantially steplessly merges into the adjacent ground and thus provides little reason to stumble.

The element body 2 points in the area of its first front edge area 7 a connection section 10 in the form of one with two undercuts 12 equipped, in the transverse direction Q centered projection 13 auf, which has a mushroom-like shape in plan view of the cover and whose width in the transverse direction Q is substantially greater than half the width q _P. The two undercuts 12 are each of a projection portion or a projection broadening 12.1 educated. In the area of the second front edge area 8th is a connection section 11 in the form of two in the longitudinal margins 5 . 6 arranged, each with an undercut 14 equipped projections 15 intended.

From the 3 it can be seen that the element body 2 in its intended for resting on the support surface support sections 4 insertion elements 16 has, which form fit to corresponding recesses of the element body 2 are formed. The insert elements 16 are z. B. made of a thermoplastic polyurethane, which has a very good wet friction.

From the 3 It can be seen that the cover 1 between the support portions serving for resting on the support surface 4 and the underside of the element body a space or interior 16 has, in the lines or cables can be easily absorbed. When using the cover elements 1 As a cable bridge so the cables or cables are first laid in the desired manner. Subsequently, then one or more cover elements 1 be easily placed over the wires or cables so that they are completely covered by the cover 1 be recorded. In the case of a longer covering device or cable bridge in the manner described a plurality of cover elements 1 with the help of their connecting sections 10 and 11 attached to each other.

If a longer cable bridge is needed, several cover elements can be used 1 be easily connected together to form a covering, as in the 4 is shown. This is the lead 13 of the first frontal edge area 7 arranged connecting portion 10 for engaging in the undercuts 14 of the second frontal edge region 8th arranged connecting portion 11 brought. This is easy to do, as the protrusions 15 of the second frontal edge region 8th arranged connecting portion 11 for engaging in the undercuts 12 of the first frontal edge area 7 arranged connecting portion 11 are formed.

The cover element 1 Can be installed extremely quickly as cover or cable bridge and also dismantled again, whereby an application in rooms where lines, including electrical cables or cables must be routed in ever changing orientation, brings with it special advantages. An example of such rooms are operating rooms of hospitals in which technical devices are built around the operating table in ever changing order.

The sectional view the 5 - 12 show as a further embodiment, a cover 1a according to the invention, which in terms of its outer shape the cover 1 corresponds in turn and substantially flat, ie with a maximum height H <25% q _P and at the top around axes parallel to the longitudinal direction L convex curved executed. In this embodiment, the element made of a metallic sheet, for example made of sheet steel by punching and bending forms 3 an internal reinforcement of the cover 1a and in this case is completely from the element body 2 enclosed plastic material, for example, overmoulded, so that it is not visible on the outside of the cover. The shape or the convex curvature corresponding to the cover 1a on its upper side about axes parallel to the longitudinal direction, is also the element 3 convexly curved around axes parallel to the longitudinal direction of the element 3 , Furthermore, the element 3 designed so that it with its extending in the direction of the longitudinal direction L edge regions 3.1 to near the corresponding edges of the cover 1a as well as in the immediate vicinity of the underside of the cover 1a or the respective edition section 4 extends and forms a parallel or substantially parallel to this underside extending surface.

The 6 shows the cover 1a in a perspective view with a metallic reinforcing element 3 , preferably of steel. The element 3 Metal is not visible as it is completely off the element body 2 is wrapped. The element body 2 has in the region of its first end edge region the connecting portion 10 in the form of two undercuts 12 equipped, in the transverse direction Q centered projection 13 on. In the region of the second end-side edge region is the connecting portion 11 in the form of two in the longitudinal margins 5 . 6 arranged, each with an undercut 14 equipped projections 15 intended. The connecting sections 10 and 11 So are in the same way as the cover 1 executed.

The invisible flat element 3 made of metal has substantially the same shape as the element body 2 and thereby gives the element body 2 up to its connecting sections 10 and 11 in a high dimensional stability.

At its two perpendicular to the longitudinal direction L extending ends or end faces is the element 3 the connection sections 10 and 11 shaped accordingly, with a the projection 13 corresponding central projection 18 with the tab broadening 13.1 corresponding lateral ledge broadening 18.1 or with one of the recess 11.1 corresponding recess 19 with the projections 15 corresponding protrusions 20 , This ensures that the material of the element 3 into the projection broadening 13.1 and the projections 15 reached and thus the entire area of the connecting sections 10 and 11 through the material of the element 3 is reinforced. Also the projection broadening 18.1 and the projections 20 are each provided with openings, for a positive connection of the polymeric material with the element 3 ,

As in particular the 5 shows is the element body 2 or this element body 2 forming plastic molding so that it forms on the two longitudinal edge areas 5 and 6 each extending in the longitudinal direction L web-like support portion 4 forms and lying between the open to the bottom and the two end faces empty or interior 17 for receiving the with the cover 1a Covered cables, cables, etc.

With 21 are inlay parts or pre-molded parts, which are made as plastic molded or strip-like long, open towards the bottom hollow body, with such a length that each at a longitudinal edge region 5 respectively. 6 provided preform over the entire or substantially the entire length of the cover 1a outside the connecting sections 10 and 11 extends. For the production of the cover 1a will be according to the 7 - 9 at every edge area 3.1 of the element 3 a preform 21 attached, on the concave underside of the element 3 with the help of molded mounting pins 22 that in the element 3 provided mounting holes 23 engage and held there by press fit or latching. The pre-molded parts 21 then stand according to the 6 with its open side something over the underside of the edge areas 3.1 before and thus serve as a spacer for the element 3 during encapsulation with the element body 2 plastic forming. After demolding the cover 1a remain the pre-molded parts 21 in the strip-like support sections and form, for example, the inserts 4.1 corresponding inserts z. B. with respect to the material of the element body 2 higher elasticity and / or with respect to the material of the element body 2 higher coefficient of friction. Preference is given to the pre-molded parts 21 at least at its the bearing surface of the cover 1a forming areas of an anti-slip material, for example, a TPU material with high wet skid resistance and abrasion resistance and with a Shore A hardness of 40-80, preferably of 60.

How the particular 7 and 8th show are the pre-molded parts 21 on its open side with an outer flange-like portion surrounding the entire local opening 21.1 provided, which forms a flat and sealing support on the inner surface of the mold used for encapsulation, so that during encapsulation no or substantially no plastic material in the interior of the pre-molded parts 21 penetrates, the pre-molded parts 21 So at the bottom of the produced cover 1a form open recesses, which means on the one hand not insignificant savings in plastic and weight and on the other hand, an improved edition of the cover 1a on a surface.

As in the 11 and 12 With 24 implied, are the tab broadening 13.1 as well as the respective distinction 12 delimiting surfaces conical or designed as inclined surfaces such that the cross section of the projection widenings 13.1 from the top to the bottom of the cover 1a slightly decreases and the dimension of each undercut 12 in the longitudinal direction L and in the transverse direction Q has from the top to the bottom of the cover 1a slightly increases. As in the 10 and 11 With 25 every projection is also indicated 15 at least at his undercut 14 facing side and the respective undercut 14 delimiting surfaces conical or as inclined surfaces formed such that the cross-section of the respective projection from the top to the bottom of the cover 1a down and the cross section of the respective undercut 14 from the top to the bottom of the cover 1a slightly enlarged. Through these bevels 24 and 25 is the joining of two cover elements 1a much easier, regardless of whether in these connections a to an existing cover 1a to be connected cover 1a with its connecting section 11 at a connecting section 10 or with its connecting section 10 to a connection section 11 is connected.

Preferably, the inclined surfaces extend 24 and 25 but only over a part of the thickness of the cover 1a , so that one to the top of the cover 1a subsequent subregion of the connecting sections 10 and 11 these bevels 24 and 25 does not have and over these the bevels 24 and 25 not having portions of the connecting portions 10 and 11 an exact, positive and play-free or substantially play-free connection between adjacent cover elements 1a is reachable.

When using the cover elements 1a As a cable bridge, in turn, first the electrical cables are laid in the desired manner. Subsequently, then one or more cover elements 1 be easily placed over the electrical wires so that they are completely covered by the cover 1 be recorded. In the case of a longer cable bridge in the manner described a plurality of cover elements 1a fastened together by means of their connecting sections. This is the lead 13 of the connection section 10 for engaging in the undercuts 14 of the connection section 11 brought. This is easy to do, as the protrusions 15 of the connection section 11 for engaging in the undercuts 12 of the connection section 11 are formed. The cover element 1a Thus, it can be laid extremely quickly as a cable bridge and also be dismantled again, whereby an application in rooms in which electrical cables must be routed in repeatedly changing orientation brings with it special advantages. An example of such rooms are operating rooms of hospitals in which technical devices are built around the operating table in ever changing order.

The 13 shows in a simplified cross-sectional representation as another embodiment, a cover 1b , which differs from the cover 1 and 1a initially fundamentally different in that it is at least made in two parts, namely consisting of a body 26 and a lid 27 which is pivotable about an axis parallel to the longitudinal direction L on the base body 26 provided and much of the top of the cover 1b forms. With the lid closed 27 corresponds to the outer shape or outer contour of the cover 1b the shape or outer contour of the cover 1a and 1b that is, the flat or substantially flat cover element compared to its width 1b is in turn convexly curved on its upper side about axes parallel to the longitudinal direction L.

Instead of the empty or interior space 17 has the cover 1b an empty or interior space 28 in turn, like the empty or interior space 17 Trough-like running on the two, transversely to the longitudinal direction L extending end faces of the cover 1 is open. In the interior 28 can walkways 29 be provided, which extend in the longitudinal direction L, the empty or interior space 28 subdivide into several individual spaces extending in the longitudinal direction L and, inter alia, the closed lid 27 support.

At the two front ends of the main body 26 with the connecting sections 10 respectively. 11 provided, wherein the connecting portion 10 forming central projection 13 has an opening which the local opening of the channel-like interior 28 forms. This is the side of two extending in the longitudinal direction L body portions 26.1 limited, which also includes the undercuts 12 and 14 or the projection broadening 13.1 and the lead 15 the connecting sections 10 and 11 form. At the bottom of the cover 1b is the interior 28 through one of the two sections 26.1 connecting ground 26.2 locked. Overall, the body is 26 with the connecting sections 10 and 11 again made as a molded part of the polymeric material. In the sections 26.1 is each one of the material of the body 26 completely enclosed strip-like insert or reinforcing element 30 arranged, which consists of a metallic material and over the entire length of the cover 1b extends in the longitudinal direction L. The two reinforcing elements 30 are oriented across several transverse to the longitudinal direction L and in the ground 26.2 arranged there and there from the material of the body 26 fully enclosed reinforcing elements 31 connected with each other. The reinforcing elements 31 In the illustrated embodiment, blanks are made of a metallic flat material, for example of sheet steel, preferably of a steel sheet with spring properties. Instead of several reinforcing elements 31 it is also possible to use a continuous flat reinforcing element, which then preferably extends almost over the entire length of the covering element 1b extends. The cross-sectionally U-shaped reinforcing elements 30 lie with their connecting the webs of the U-profile yoke sections on the reinforcing elements 31 on and are connected, for example, with these, in such a way that the legs of the reinforcing elements 30 from the reinforcing element 31 Stand up to the top. A special feature of the cover 1b is that the reinforcing elements 30 into the connecting section 10 and 11 extend, ie up to the projection widenings 13.1 and the projections 15 and in particular with corresponding, perpendicular or substantially perpendicular to the plane of the ground 16.2 extending leg portions the respective projection broadening 13.1 and the respective lead 15 reinforce over the entire height. The reinforcing elements 30 thus lend the cover 1b including its connecting sections 10 and 11 a high stability.

The one at a section 26.1 by means of a joint 32 hinged and produced as a molded plastic part lid 27 also has metallic reinforcing elements 33 on, in the illustrated embodiment in the material of the lid 27 completely embedded in the longitudinal direction L extend and are formed by blanks of the metallic material.

The 17 and 18 show an embodiment of the cover 1a in which (embodiment) the two pre-molded parts 21 to the reinforcing element 3 are sprayed. The holes 23 mold the fixing pins 22 out. At the same time, the webs are sprayed on 21.2 as well as rivet-like degrees formed. These ensure a positive connection of the preforms 21 on the reinforcing element 3 , This embodiment has the advantage that during the pre-injection or production of the cover 1a only a single part has to be handled.

The 19 and 20 show an embodiment of the cover 1a , which differs from the cover 1a of the 7 and 8th it differs in that the pre-molded parts 21 , which in turn preferably consists of the slip-resistant material, for example of the TPU material with high wet skid resistance and abrasion resistance and with a Shore A hardness of 40-80, preferably of 60, part of a molded part 34 are, among other things, the concave underside of the metallic reinforcing element 3 covers. In the production of the cover 1a At first this will also be the overlay sections 4 forming molding 34 to the metallic reinforcing element 3 injected, in such a way that the material used also through openings of the reinforcing element 3 occurs and thereby a positive connection between the molding 34 and the reinforcing element 3 is reached. Then this becomes the top or top shell 2.2 the covering element forming material molded, preferably such that it is in the region of the openings in the reinforcing element 3 comes to a welded joint between the polymeric materials used.

The 21 shows in a sectional view a further embodiment of the cover 1a , Shown in detail in the 21 on the left the section of the cover on the frontal edge areas and in the 21 right section of the cover between the two frontal edge regions to increase the capacity of the cover by reducing the span of the metallic reinforcing element 3 this is between the front edge areas 7 and 8th so notched and angled that it is on both sides of the cover 1a each at least one support leg 3.1 forms, namely to support on a substrate, said support foot 3.1 in turn is angled so that it with this angled parallel or substantially parallel to the underside of the cover 1a oriented support surface forms. The two at each on a longitudinal side of the cover 1a provided support feet 3.1 have in the transverse direction of the cover a distance from each other, which is approximately equal to the corresponding width of the empty or interior space 17 is, but definitely smaller than the total width of the end element 1a , As a result, the support width of the metallic reinforcing element 3 reduces and thus the capacity of the cover 1a elevated. Because the outriggers 3.1 only on a partial length between the two end margins 7 and 8th are provided, the connecting portions 10 and 11 be formed in the manner described above.

The 22 shows a further embodiment of the support element 1a , which in turn reduces the span of the metallic reinforcing element 3 and is thus provided to increase the load capacity of the cover on the two long sides with Abstützfüßen. The latter are in this embodiment of strip-shaped metal or steel inserts 35 formed with their surface sides perpendicular or transverse to the underside of the cover 1a oriented in the polymeric material, for example in the molding 34 are embedded. The metal inserts 35 each supported with their upper edge on the underside of the reinforcing element 3 directly from and have in the transverse direction of the cover 1a again a distance equal to or about equal to the corresponding width of the empty or interior space 17 is, but in any case much smaller than the total width of the cover 1a ,

The invention has been described above by means of exemplary embodiments. It is understood that numerous changes and modifications are possible without thereby departing from the inventive concept underlying the invention.

LIST OF REFERENCE NUMBERS

1, 1a, 1b

cover

2

member body

2.1

metallic covering and also reinforcing element

3

metallic reinforcing element

3.1

Angling or support leg

4

bearing section

5, 6

longitudinal edge areas

7, 8

front edge areas

9

grooved member

10, 11

connecting sections

12, 14

undercut

13, 15

head Start

13.1

lead widening

16

insertion element

17

Empty or interior

18

head Start

18.1

lead widening

19

recess

20

head Start

21

Preform

21.1

flange-like section

22

fastening pins

23

mounting hole

24, 25

Bevel or bevel

26

body

26.1

Body part

26.2

Body bottom

27

cover

28

inner space

29

web

30, 31

metallic reinforcing element

32

joint axis

33

metallic reinforcing element

34

molding

35

metal insert

L

longitudinal direction

I _P

Expansion of the element body in the longitudinal direction

I _M

Expansion of the sheet metal element in the longitudinal direction

Q

transversely

q _P

Extension of the element body in the transverse direction

q _M

Expansion of the sheet metal element in the transverse direction

H

height

Claims (14)

Cover element ( 1 . 1a ) for lines, in particular electrical lines or cables, having a longitudinal direction (L) extending substantially parallel to a direction of the lines and a transverse direction (Q) oriented perpendicular to the longitudinal direction (L), the cover element (FIG. 1 . 1a ) an element body ( 2 ) of at least one polymeric material, preferably of at least one electrically nonconductive polymeric material and at least one reinforcing element ( 3 . 30 ) of metal, wherein the element body ( 2 ) at least between its longitudinal edge regions extending along the longitudinal direction (L) ( 5 . 6 ) and its along the transverse direction (Q) extending frontal edge regions ( 7 . 8th ) the top of the cover ( 1 . 1a ) or at least a portion of the top of the cover ( 1 . 1a ), and wherein the cover element ( 1 . 1a ) between lateral support sections ( 4 ) has a longitudinally extending internal or empty space ( 17 ) forms for receiving the lines, wherein for the positive connection of two cover elements ( 1 . 1a ) the element body ( 2 ) in the region of the end margins ( 7 . 8th ) each at least one connecting portion ( 10 . 11 ), wherein the at a first end-side edge region ( 7 ) arranged at least a first connecting portion ( 10 ) for positive engagement in the at least one at a second front edge area ( 8th ) arranged second connecting portion ( 11 ), wherein the at least one reinforcing element ( 3 . 30 ) is formed by a metallic flat material which extends in the longitudinal and transverse directions (L, Q) into the connecting sections ( 10 . 11 ), wherein the reinforcing element ( 3 . 30 ) at its two perpendicular to the longitudinal direction (L) extending ends or end faces of the connecting portions ( 10 . 11 ) is formed accordingly and wherein the at least one reinforcing element ( 3 . 30 ) substantially completely of the material of the element body ( 2 ) is enclosed. Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the first connecting section ( 10 ) at least two first pins or projections ( 13.1 ) and the second connection section ( 11 ) at least two undercuts ( 14 ) for the positive reception of the first pin or projections ( 13.1 ), wherein the pins or projections ( 13.1 ) and the undercuts ( 14 ) are preferably oriented with their longitudinal extent in the transverse direction (Q) or substantially in the transverse direction (Q). Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the at least one first connecting section ( 10 ) of at least in plan view of the cover mushroom-like projection ( 13 ) is formed, which preferably centrally or substantially centrally on the first front-side edge region ( 7 ) provided with two lateral projection extensions forming the pins or projections, that the at least one second connecting portion ( 11 ) a recess ( 19 ), which is preferably centrally or substantially centrally on the second front-side edge region ( 8th ) between two lateral projections ( 15 ) formed in the recess ( 19 ) each one of the undercuts ( 14 ), so that when connecting two cover elements ( 1 . 1a ) the mushroom-like projection ( 13 ) of a cover element ( 1 . 1a ) positively and fit in the recess of the other cover member ( 1 . 1a ) is recorded. Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the at least one reinforcing element ( 3 . 30 ) without interruption between the two end margins ( 7 . 8th ) and / or the local connection sections ( 10 . 11 ) and their projection broadening and protrusions ( 15 ). Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the at least one reinforcing element ( 3 . 30 ) also has at least one connecting section in the region of its front-side edge regions, or at least forms part of such a connecting section, and in that it is connected to a first end-side edge region of the reinforcing element ( 3 . 30 ) provided at least a first connecting portion for the positive engagement in a at a second end-side edge region of the reinforcing element ( 3 . 30 ) provided second connecting portion is formed. Cover element ( 1 . 1a ) according to claim 5, characterized in that the connecting portions on the reinforcing element ( 3 ) have the same or substantially identical shape to the connecting sections ( 10 . 11 ) of the element body ( 2 ) are formed. Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the at least one reinforcing element ( 3 . 30 ) at its all surfaces completely of the material of the element body ( 2 ) is enclosed. Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the element body ( 2 ) in the longitudinal direction (L) has an extension I _P and in the transverse direction (Q) has an extension q _P , and that the at least one reinforcing element ( 3 ) in the longitudinal direction (L) has an extension I _M and in the transverse direction (Q) has an extension q _M , where 0.5 · q _P ≦ q _M ≦ q _P and 0.5 · I _P ≦ I _M <I _P , Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the at least one reinforcing element ( 3 ) has an extension I _M in the longitudinal direction (L) and an extension q _M in the transverse direction (Q), where 0.7 × q _P ≦ q _M ≦ q _P and 0.8 × I _P ≦ I _M <I _P , preferably 0.8 · q _P ≦ q _M ≦ q _P and 0.9 · I _P ≦ I _M <I _P , particularly preferably 0.9 · q _P ≦ q _M ≦ q _P and 0.95 · I _P ≦ I _M <I _P are. Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that in the support sections ( 4 ) Insert elements ( 16 ) are provided, which are formed for example as a brush strip or as suction cups, and / or that the support sections ( 4 ) or the insert elements ( 16 ) consist of a soft plastic, preferably of a TPU material, preferably of a TPU material having a Shore A hardness of 40-80, preferably with a Shore A hardness of 60. Cover element ( 1 . 1a ) according to claim 10, characterized in that the support sections ( 4 ) or the insert elements ( 16 ) Component of a molded part ( 34 ) are made of the polymeric material. Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the material of the element body ( 2 ) is an electrically non-conductive rubber, an electrically non-conductive thermoplastic, an electrically non-conductive thermosetting plastic or a mixture of at least two of the aforementioned materials, wherein it is preferably an electrically non-conductive, thermoplastic in the electrically non-conductive thermoplastic Elastomer, particularly preferably is thermoplastic polyurethane or a compound of the styrene block copolymer SEBS, and / or wherein the thermoplastic materials, for example, at least one material from the group of compounds of ethylene vinyl acetate (EVA), the polyvinyl acetate, compounds of plasticizer-modified polyvinyl chloride, and thermoplastic elastomers and their compounds such. Polyolefin elastomers (TPO / POE), styrene block copolymers (SEBS / SEPS), thermoplastic polyurethanes (TPU), thermoplastic copolyamide elastomers, thermoplastic copolyester elastomers. Cover element ( 1 . 1a ) according to one of the preceding claims, characterized in that the at least one reinforcing element ( 3 . 30 ) at least in at least one section between the front-side edge regions ( 7 . 8th ) on each longitudinal side of the cover ( 1 . 1a ) at least one support or a support foot ( 3.1 . 35 ) and that the distance of the supports or support feet ( 3.1 . 35 ) in a transverse direction of the cover element ( 1 . 1a ) is smaller than the width of the cover member in this direction, preferably equal to or slightly larger than the width of the inner or void space ( 17 ) in this transverse direction. Use of a plurality of by means of the connecting sections ( 10 . 11 ) interconnected cover elements ( 1 . 1a ) according to one of claims 1 to 13 as a cable bridge.

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