WO2000030229A1

WO2000030229A1 - Cable duct

Info

Publication number: WO2000030229A1
Application number: PCT/EP1999/008813
Authority: WO
Inventors: Giovanni Miranda
Original assignee: Miranda-Esser, Elisabeth
Priority date: 1998-11-18
Filing date: 1999-11-16
Publication date: 2000-05-25
Also published as: AU1966200A; DE19853043A1

Abstract

A cable duct comprising at least one rear wall strip (1-1.7) and at least one intermediate wall strip (19) or side wall strip (2-2.8), whereby a locking element (5-5.5) is associated with at least one of the strips (1-1.7 or 2-2.8) in an adjacent edge area and a receiving element (6-6.3) for said locking element is associated therewith in an edge area of the other strip. The locking element (5-5.5) and/or the receiving element (6-6.3) are joined to the strip (1-1.7 or 2-2.8) by means of a hinge (10).

Description

Cabel Canal

The invention relates to a cable duct made of at least one

Rear wall strip and at least one intermediate wall strip or side wall strip, wherein at least one of the strips in the adjacent edge area is assigned a locking element and this in the edge area of the other strip is assigned a locking receptacle.

Cable ducts are known in various forms and designs. For example, a cable duct according to DE 87 10 777 Ul consists of an extruded band with segments running in the longitudinal direction. The segments are attached to one another in one piece, a V-shaped groove being provided between each two segments. This results in zones with a weakened cross section running in the longitudinal direction, which serve as hinge webs and are extruded in one piece together with the segments. This type of hinge is also called a film hinge. To form the actual profile cross-section

BK IGUNGSKOPIE the segments are folded along the hinge webs and fixed by means of locking members formed continuously on the segments in the longitudinal direction. The segments of the endless belt then form the wall sections of the cable duct.

Furthermore, a cable duct profile is known from EP 0 696 097 AI, in which the wall sections on the one hand and the hinge webs on the other hand consist of different materials and are coextruded.

Although the last-mentioned cable duct profile has considerable advantages, the present invention is based on the object of making a cable duct profile much more flexible.

To achieve this object, the locking element and / or the locking receptacle is connected to the strip via a hinge.

The hinge can be a normal, hinge-like hinge, although the effort involved in manufacturing it is very great. Therefore, the hinge is preferably made of a deformable or flexible plastic, and it can be referred to as a film hinge strip or as a coextruded strip. This strip has the advantage that, after being connected to, for example, a side wall strip, it allows this side wall strip to be erected. For transport, however, the strip can be laid flat so that it takes up as little space as possible.

In the case of using a flexible plastic strip as a hinge, it has proven advisable to use one

Possibility to provide for the pivoting movement of the strips relative to one another so that the plastic strip does not is overstretched. Corresponding support surfaces are provided for this purpose, which limit the pivoting movement of the strips relative to one another.

This means that the cable duct is no longer made in one piece from a profile strip, but from several, relatively flat strips, which are then assembled either in the manufacturing plant or on site. This makes it possible, for example, to connect side wall strips of a desired width to a rear wall strip. The side wall strips can also have different configurations. The possible combinations are very diverse.

Many possibilities are conceivable for the design of the locking element and locking receptacle and are intended to be encompassed by the present invention. In a preferred embodiment, a cover strip protrudes from the strip to form the snap-in receptacle, which forms a longitudinal slot together with part of the strip. This longitudinal slot serves to accommodate the locking element. The latching element is preferably a flat strip which is inserted into the longitudinal slot. So that it remains in the longitudinal slot, it is possible, for example, to provide the locking receptacle and the locking element with a longitudinal corrugation which interact. However, it is also conceivable that undercuts or, for example, a hook groove are provided in the longitudinal slot, in which case the latching element has corresponding hooks or is triangular or mushroom-shaped in cross section.

With the corrugations mentioned above, it is also possible, for example, that the latching receptacle can assume a plurality of latching positions with respect to the latching element, so that a side wall width of the cable duct can be changed. In a preferred exemplary embodiment, locking devices are also provided for fixing the individual strips when the cable duct is formed, however, as is already known, for example, from EP 0 696 097.

Incidentally, the cable duct does not have to be made of plastic, or not at all in its components. It is also conceivable to manufacture the cable duct from a ceramic material, the insulation properties of which are to be emphasized. Ceramic materials can now also be sprayed together with plastic or alone.

It also appears possible to manufacture the rear wall strip from plastic, but the visible parts of the cable duct from a metal, for example from aluminum. Many variations are conceivable here and are intended to be encompassed by the invention.

Further advantages, features and details of the invention result from the following description of preferred exemplary embodiments and from the drawing; this shows in

1 shows a cross section through a cable duct according to the invention;

FIG. 2 shows an enlarged top view of a section of the cable duct according to FIG. 1 in a different position of use;

3 shows a plan view of the detail according to FIG. 2 in the use position shown in FIG. 1;

Figure 4 shows a partially shown cross section through a cable duct corresponding to Figure 1 in a further embodiment;

5 shows a partially shown cross section through a cable duct similar to Figure 4;

Figure 6 shows a cross section through a cable duct with a

Partition;

Figure 7 is a plan view of another

Embodiment of a connection between a

Back wall strip and a side wall strip one

Cable duct;

8 shows the top view according to FIG. 7, but in a different position of use;

Figure 9 is a plan view of parts of another embodiment of a cable duct; FIG. 10 shows a plan view of the parts according to FIG. 9 in a further exemplary embodiment and a further position of use of a cable duct;

FIG. 11 shows an enlarged plan view in the area of the connection between parts of a cable duct;

FIG. 12 shows the top view of the parts according to FIG. 11 in a further position of use;

FIG. 13 shows a cross section through a further exemplary embodiment of a cable duct;

Figure 14 is a plan view of parts of the cable duct according to Figure 13 in the open position;

Figure 15 is a plan view of further parts of the cable duct according to Figure 13 in the open position.

According to FIG. 1, a cable duct according to the invention has a rear wall strip 1 which is connected to two side wall strips 2.1 and 2.2. Compared to the rear wall strip 1, the two side wall strips 2.1 and 2.2 are held together by a cover clip 3, which in turn is covered by a cover strip 4.

The connection between the side wall strips 2.1 and 2.2 and the rear wall strip 1 takes place via a locking element 5 which engages in a locking receptacle 6. The latching receptacle 6 is formed on the one hand by a part of the side wall strips 2.1 or 2.2 and on the other hand by a cover strip 7 which at least partially overlaps this part. The cover strip 7 forms, together with the part of the side wall strip 2.1 or 2.2 just mentioned, a slot as a catch receptacle 6, in which the catch element 5 engages. In the exemplary embodiment shown, the latching element 5 is designed as a flat strip which has a corrugation 8. This corrugation 8, which runs in the longitudinal direction, cooperates in the use position with a longitudinal corrugation 9, which is preferably provided on both sides inside the latching receptacle 6.

The latching element 5 is also connected to the rear wall strip 1 via a hinge 10, the hinge 10 consisting of a flexible, bendable plastic strip in the exemplary embodiment shown. For example, this can be a film hinge strip or a co-extruded plastic strip, as described in EP 0 696 097 AI.

A support surface 11 is also provided on the locking element 5, which in turn is assigned a support surface 12 on the rear wall strip 1. The two support surfaces 11 and 12 prevent the hinge 10 from overstretching.

A locking device 13 is also assigned to the rear wall strips 1 and side wall strips 2. For the sake of simplicity, this locking device 13 consists of a latch strip 14, which is molded onto the cover strip 7, and a latch strip 15, which in turn is molded onto the rear wall strip 1. In the locked position, the pawl strip 14 engages under the latch strip 15, as shown in FIG. 1.

The operation of the present invention is as follows:

Back wall strips 1 and side wall strips 2.1 and 2.2 are produced separately from one another. This is done, for example, by extrusion, plastic being pressed through an appropriate shape. Should the hinge 10 be a co-extruded plastic strip made of flexible material according to EP 0 696 097 AI act, the locking element 5, the hinge 10 and the rear wall strip 1 are produced together with the latch strip 15 in one manufacturing process.

The individual parts of a cable duct can now be transported separately. To assemble the cable duct, a desired side wall strip 2.1, as shown in FIG. 2, is pushed onto the locking element 5. This is done by inserting the locking element 5 into the locking receptacle 6 of the side wall strip 2.1. As a result of the longitudinal corrugations 8 and 9, there is a positive connection between the locking element 5 and the side wall strip 2.1.

The connection can be made both at the place of manufacture and on site at the construction site.

In order to now produce the actual cable duct, the side wall strip 2.1 is erected, as shown in FIG. 3, the hinge 10 being bent. This continues until the support surface 11 abuts approximately on the support surface 12 of the rear wall strip 1, the latch strip 14 also already engaging under the latch strip 15 and thus locking this part of the cable duct in this desired position.

An essential advantage of the present invention is that strips of a wide variety of configurations can be connected to one another via the generally detachable connection between the locking element 5 and the locking receptacle 6. In FIG. 4, for example, instead of a straight side wall, a side wall strip 2.3 is coupled to the latching element 5, to which a parapet strip 16 for an inner cover is molded approximately at right angles. As shown in FIG. 4, this molding can be firm, but it can also take place, for example, via a film hinge or a coextruded strip 17, as shown in FIG. In In this case, the coextruded strip 17 is also assigned its own locking device 18.

It is indicated in FIG. 6 that a rear wall can consist, for example, of two rear wall strips 1.1 and 1.2. Both rear wall strips 1.1 and 1.2 each have a latching element 5.1 and 5.2, which is each connected to the rear wall strip 1.1 or 1.2 via a hinge 10.1 or 10.2. An intermediate wall 19 is now pushed onto these two locking elements 5.1 and 5.2, which, for example, separates two chambers from one another in a cable duct. Accordingly, two locking devices 13.1 and 13.2 are also provided.

In a further exemplary embodiment of a connection between a rear wall strip 1.3 and a side wall strip 2.4 according to FIGS. 7 and 8, in a snap-in receptacle 6.1, undercuts 20.1 and 20.2 are provided which interact with a correspondingly shaped snap-in element 5.3. This latching element 5.3 is triangular or mushroom-shaped in cross section, so that it can be clipped into the latching receptacle 6.1.

It can be seen in FIG. 8 that a coextruded strip as a hinge 10 also allows the side wall strip 2.4 to be erected in this exemplary embodiment.

It is indicated in FIGS. 9 to 12 that a locking element 5.4 can be formed on a side wall strip 2.5. The locking element 5.4 has a hook 21 which engages behind a hook strip 22 in the position of use.

In FIG. 9 it can also be seen that here a rear wall strip 1.4 is firmly and integrally coupled to a side wall strip 2.6. Against that is Side wall strips 2.5 assigned to the free edge of the rear wall strip 1.4 via the flexible connection according to the invention.

It can be seen in FIG. 10 that a rear wall strip 1.5 has a corresponding flexible and releasable connection to side wall strips 2.5 on both sides.

In FIGS. 11 and 12, the assignment of the locking element 5.4 is again interchanged, i.e. the locking element 5.4 is assigned to a rear wall strip 1.6, while the locking receptacles 6.2 with the hook strip 22 are located on the side wall strip 2.6.

FIGS. 13 to 15 again show a cable duct according to the invention, in which a rear wall strip 1.7 on the one hand has a snap-in receptacle 6.3 for a snap-in element 5.4, to which a side wall strip 2.7 is assigned via a hinge 10.

On the other hand, the locking element 5.5 is coupled to the rear wall strip 1.7 via a hinge 10, while the locking receptacle 6.3 is formed by a side wall strip 2.8. It can thus be seen that a large number of variations are possible which are intended to be covered by the present inventive concept.

Item number list

Claims

Patent claims

1. Cable duct made of at least one rear wall strip (1 - 1.7) and at least one intermediate wall strip (19) or side wall strips (2 - 2.8), with at least one of the strips (1 - 1.7 or 2 - 2.8) in the adjacent edge area having a locking element (5 - 5.5) and a snap-in receptacle (6 - 6.3) is assigned to this in the edge area of the other strip,

characterized,

that the locking element (5 - 5.5) and / or the locking receptacle (6 - 6.3) is connected to the strip (1 - 1.7 or 2 - 2.8) via a hinge (10).

2. Cable duct according to claim 1, characterized in that the hinge (10) from a deformable or flexible

Plastic is made.

3. Cable duct according to claim 1, characterized in that the hinge (10) consists of a film hinge strip or a thin, bendable plastic strip.

4. Cable duct according to one of claims 1 to 3, characterized in that the latching receptacle (6) or the latching element (5) has a plurality of latching positions.

5. Cable duct according to at least one of claims 1 to 4, characterized in that to form the locking receptacle (6 - 6.3) of the strips (1 - 1.7 or 2 - 2.8) is partially overlapped by a cover strip (7), which together with part of the inner wall of the strip (1 - 1.7 or 2 - 2.8) forms a longitudinal slot for receiving the locking element (5 - 5.5).

6. Cable duct according to claim 5, characterized in that a longitudinal corrugation (9) is provided in the longitudinal slot.

7. Cable duct according to claim 6, characterized in that the latching element (5) consists of a flat strip, which is also, preferably on both sides, provided with a longitudinal corrugation (8).

8. Cable duct according to claim 5, characterized in that near the opening of the longitudinal slot at least one undercut (20) or a hook groove (22) is provided and the locking element (5.3 - 5.5) is hook-shaped or triangular or mushroom-shaped in cross section.

9. Cable duct according to at least one of claims 1 to 8, characterized in that the locking receptacle (6 - 6.3) or the locking element (5 - 5.5) is assigned a locking device (13).

10. Cable duct according to claim 9, characterized in that the locking device (13) consists of a latch strip (14) which cooperates with a trap strip (15).

11. Cable duct according to at least one of claims 1 to

10, characterized in that a support surface (11, 12) for limiting a pivoting movement of the two strips (1, 2.1, 2.2) is provided on the latching element (5) and its strip (1).

12. Cable duct according to at least one of claims 1 to

11, characterized in that the strips (1 - 1.7 or 2 - 2.8) are firmly connected at their free edges, via a coextruded hinge strip or via a film strip to further strips to form a cable duct.

13. Cable duct according to at least one of claims 1 to 12, characterized in that a strip, in particular the rear wall strip, is formed from a plastic and at least one further strip, in particular a visible strip, from another material, in particular metal and here in particular aluminum is.

14. Cable duct from at least one rear wall strip (1 - 1.7) and at least one intermediate wall strip (19) and / or side wall strips (2 - 2.8), characterized in that the strips are at least partially formed from a ceramic material.