Inserts and kits for wall cable feedthroughs

Abstract

The present invention relates to an insert (4) for a wall cable feedthrough, comprising: a frame part (4a) made of a hard material and at least partially surrounding the part opening; a membrane (5) made of a soft material part, covering the part opening; a fixing part designed to fix the frame part (4a) together with the membrane (5) to the wall cable feedthrough when said frame part is inserted into the through opening of the wall cable feedthrough; and The cable receiving means arrangement comprises cable receiving means (15) distributed on the surface of the membrane (5), each having, in the cable insertion direction extending transversely on the surface of the membrane (5), a pierceable membrane portion (16) provided on the front side and a cable bushing provided on the rear side, the bushing designed to provide strain relief for the inserted cable. The present invention also relates to a kit for a wall cable feedthrough.

Description

Detailed Description of the Invention

[0001] The present invention relates to an insert and kit for a wall cable feedthrough.

[0002] 〔background〕 Wall cable feedthroughs or passages, or wall bushings, are used to route cables through bulkheads, particularly housing or audio cabinet walls. In this case, a wall opening is provided in the wall through which the cable passes to route from one side of the wall to the other. WO 2016 177 364 A1 and WO 2018 001 419 A1 disclose arrangements for wall cable feedthroughs and methods of manufacturing the same. The feedthrough opening is formed on a housing component, also known as a flange plate, and is divided into multiple receptacles for cable feedthrough or sealing elements using a frame element. One or more such sealing elements can be inserted into the receptacles of the frame element, each providing a sealing cable receptacle.

[0003] 〔overview〕 The object of the present invention is to specify in a simplified manner an insert and a kit for a wall cable feedthrough or wall bushing by means of which a plurality of cables are led through an associated wall opening using a seal.

[0004] To solve this problem, an insert part and a kit for a wall cable feedthrough are made according to independent claims 1 and 15. Embodiments are the subject matter of the dependent claims.

[0005] According to one aspect, an insert for a wall cable feedthrough is made, comprising: a frame element made of a hard material part that at least partially surrounds the element opening; a membrane made of a soft material part covering said element opening; a fastening device configured to secure the frame element to the wall cable feedthrough or wall bushing with the membrane when the frame element is inserted into a passage opening of the wall cable feedthrough; and The arrangement of cable receptacles, the cable receptacles are distributed on a surface of the membrane, each of the cable receptacles having a push-through membrane portion arranged on a front surface thereof and a cable grommet arranged on a rear surface thereof in a cable insertion direction extending transversely to the surface of the membrane; The cable grommet is configured to provide traction relief for an inserted cable.

[0006] According to a further aspect, a kit for a wall cable feedthrough is provided, comprising a mounting part and an insert part. The mounting part, which may be formed, for example, using a box or frame element or a flange plate, has a plurality of receptacles, each of which receives one or more cable feedthrough elements, and is configured to be installed in the area of ​​a wall opening. The insert part is configured to be inserted into one of the receptacles, optionally with a positive fit and / or self-clamping.

[0007] This kit can be used to create an arrangement for a wall cable feedthrough, with an insert part being placed in one of the receptacles of the wall feedthrough during installation. To create the arrangement, a mounting part can be installed in the area of ​​the wall opening. Before or after the insert part is inserted into one of the receptacles of the mounting part, multiple cable receptacles can be provided accordingly, and a cable can be inserted into each cable receptacle so that the push-through membrane portion is pierced or cut open to insert the cable in the insertion direction. For example, when the insert part is inserted, the push-through membrane portion is closed before the cable is inserted. In this way, the cable receptacle of the arrangement remains closed in the area of ​​the membrane until the cable is actually inserted.

[0008] The push-through membrane portions are distributed on the surface of the membrane, whether according to a regular or irregular arrangement of spaced push-through membrane portions. Thus, the insert can accommodate multiple cables in the wall cable feedthrough. In an initial state, the membrane forms a closed membrane surface, and the push-through membrane portions are assigned to distributed cable receptacles on the closed membrane surface.

[0009] When a wall cable feedthrough is made, the receptacles of the mounting parts can first be closed with closure parts, for example, closure plates, respectively, which can be removed at defined break points to expose the receptacle, whereupon an insert part can be pushed or inserted into the receptacle, thereby providing itself as a cable receptacle provided for a cable feedthrough in the area of ​​the receptacle.

[0010] The fastening device can be formed on the frame element. The fastening device can be continuous or interrupted all around the frame element, for example by way of fastening elements such as protrusions and / or recesses spaced around the circumference. The fastening element can be elastically and resiliently mounted on the frame element. In one embodiment, the fastening element is disposed in a region of the circumferential outer surface of the frame element, either on a portion of the circumferential outer surface or on the entire circumferential outer surface. In this or other embodiments, the fastening device can be configured to operate with an associated fastening device on the wall cable feedthrough, particularly on the mounting component, when the insert is inserted into the receptacle of the wall cable feedthrough.

[0011] The fastening device can have a latching protrusion configured to lock the frame element to the wall cable feedthrough with a membrane when the frame element is inserted into the receptacle of the wall cable feedthrough, e.g., into the mounting part. The latching protrusion can be formed with a telescopically mounted locking lug, whether in the form of a front and / or rear locking lug. When the insert part is inserted into the receptacle of the wall cable feedthrough, the latching protrusion can first be telescopically pushed back, in particular in the direction of the element opening, and then spring back to its final inserted position, so that the fastening device at least partially engages with an associated recess in the area of ​​the receptacle of the wall cable feedthrough and thus secures the insert part therein. Other click connections can be provided.

[0012] The front latching projection can be located on the front frame element portion in the cable insertion direction. The rear latching projection can be located on the rear frame element portion in the cable insertion direction. A combination of front and rear latching projections may be provided. One or more latching projections can be located in the area of ​​the circumferential outer surface of the insert part. In the inserted final position, the latching projections can work with associated locking lugs or locking recesses on the wall feedthrough.

[0013] The frame elements and membranes can be made of plastic materials. The inserts can be two- or multi-part injection-molded elements. In this way, the hard plastic material and the soft plastic material can provide different overall functionalities, resulting from the different properties of the material components. The soft and hard material components can then be made of plastic materials with different Shore hardnesses. The soft material component can be elastically flexible, while the hard material component is not. For example, polyamide can be used as the hard plastic component. The soft material component can be, for example, a thermoplastic elastomer.

[0014] The insert part can have a conical edge portion in the region of its circumferential edge. The conical edge portion can be continuous all the way around the insert part or can be interrupted. For example, the conical shape of the edge portion can be provided only on two opposite sides. The conical shape can be designed so that a narrow portion is formed in the insertion direction. During installation of the insert part in the associated receptacle of the wall (cable) feed-through, the receptacle for the insert part also has a conical design, and when the insert part is inserted, the conically designed surfaces come into contact with each other.

[0015] The frame element may be at least partially embedded in or surrounded by the soft material part. Parts of the frame element may be partially or completely enveloped by the soft material. For example, the front corner region of the frame element in the cable insertion direction may be completely enveloped by the soft material part, either continuously or discontinuously. For example, for connection with the fastening device, an obstacle may be provided in the casing or embedding for the latching projection, which may be formed in the soft material part without embedding. This applies, for example, to the latching projection on the front side in the cable insertion direction. Similarly, other parts of the frame element, for example the rear corner region in the cable insertion direction, may be at least partially embedded in the soft material part, in which case the rear latching projection may also be exposed.

[0016] The cable grommet may have a conical section at the cutting surface in the cable insertion direction. The conical grommet may be formed with a conical section.

[0017] The frame element may have a frame element portion that extends into the element opening between the cable receptacles and is covered at least on its front side, at least in the cable insertion direction, by the soft material part, and the frame element portion may be substantially completely surrounded by the soft material part.

[0018] In the cable receptacle, a receiving portion for the cable grommet may be arranged exposed on the rear surface of the membrane in the insertion direction. The exposed receiving portion on the rear surface of the membrane may have a pot shape, in particular a conical pot shape tapering in the insertion direction towards the end of the cable receptacle on the rear surface.

[0019] Bars or webs can be arranged on the rear surface of the membrane, which connect adjacent cable grommets to each other for at least some of the cable grommets. The membrane can be provided with bars as well as ribs that stabilize the arrangement of cable receptacles distributed around its periphery.

[0020] The cable grommet may have an enlarged grommet portion adjacent to the grommet portion in the insertion direction, the cut surface being larger than that of the grommet portion. At least two rows of grommet portions and at least one enlarged grommet portion may be provided, with the grommet portions arranged adjacent to each other. The grommet portion and the enlarged grommet portion may be arranged adjacent to an end of the cable receptacle on the rear surface in the insertion direction.

[0021] The insert part may have at least one circumferential sealing lip. The circumferential sealing lip may consist of a soft material part. The circumferential sealing lip, which may be continuous or discontinuous, may be arranged on the outside of a casing of the frame element made of a soft material part. In the insertion direction, the sealing lips may form a sealing lip arrangement, one behind the other. The circumferential sealing lip may be arranged, in particular, on the circumferential outer surface of the insert part.

[0022] The arrangements described above in relation to the insert part may be provided in a corresponding manner in relation to a kit for a wall cable feedthrough. If one or more sealing lips are provided on the insert part, the receptacle of the wall feedthrough may have a recess assigned thereto, and after the insert part is inserted, for example substantially positively, the assigned sealing lip at least partially engages in the recess.

[0023] The cable receptacle of the insert piece may be designed to receive the associated cable in a fluid-tight manner after it has been inserted.

[0024] [Description of the embodiment] Further embodiments are described below with reference to the drawings.

[0025] FIG. 1 is a schematic perspective view of a kit for a wall cable feedthrough, seen obliquely from the rear.

[0026] FIG. 2 is a schematic front view of a further kit for a wall cable feedthrough.

[0027] 3 is a schematic view from the back and in cross section of the kit for the wall cable feedthrough of FIG. 1. FIG.

[0028] FIG. 4 is a schematic view from the back and in cross section of a further kit for a wall cable feedthrough.

[0029] FIG. 5 is a schematic perspective view from the rear of an insert with front locking lugs.

[0030] FIG. 6 is a schematic perspective view from obliquely behind of a further insert part having rear locking lugs.

[0031] FIG. 7 is a schematic perspective view of the insert of FIG. 5, seen obliquely from the front.

[0032] FIG. 8 is a schematic perspective view of the further insert part of FIG. 6, obliquely from the front.

[0033] FIG. 1 is a schematic perspective view of a kit for a wall cable feed-through, as known per se in various embodiments, for example from WO 2016 177 364 A1 and WO 2018 001 419 A1, having a mounting part 1 (wall passage or bushing) made of plastic material, for example in one or more components.

[0034] A further embodiment of such a wall cable feed-through with a mounting part 1 is shown in FIG.

[0035] The receptacle 2 is provided in the mounting part 1, and in a sealing method, an individual sealing element 3 and an insert part 4 can be inserted into the mounting part 1 to guide a cable (not shown) through an associated wall opening (not shown) using a wall cable feedthrough.

[0036] Figure 3 shows the arrangement of Figure 1 from the rear and in cross section. The insert 4 is shown in correct correlation in Figures 5 and 7 obliquely from behind and obliquely from the front.

[0037] The insert part 4 has a frame element 4a made of a hard material part and a membrane 5 made of a soft material part. The membrane 5 covers an element opening 6 surrounded by the frame element 4. The frame element 4 has circumferential frame element portions 7a,...,7d on which outer surfaces 8a,...,8d are formed. Reinforcing ribs 9 are provided on the inner side of the frame element portions 7a,...,7d.

[0038] The fastening device 10 is formed on the frame element 4. The fastening device 10 serves to secure the insert part 4 in an associated receptacle of the mounting part 1 after the insert part 4 has been inserted or pushed in, for example by means of a latching or click connection. For this purpose, front and / or rear locking lugs 10a, 10b are provided (see Figures 3 and 4).

[0039] Furthermore, protrusions 11 are arranged on the outer faces 8a,..., 8d, which protrusions 11 engage in associated recesses 12 (see Figure 1) upon insertion into the receptacle 2. The protrusions 11 and / or the recesses 12 of the cone-shaped body may be provided.

[0040] In the embodiment shown, the insert part 4 is made using two-part injection molding, so that the soft material part forming the membrane 5 encases or surrounds the frame element 4a in the front corner region 13. A circumferential sealing lip 14 is also formed on the outer face 7a,...,7d of the frame element 4 using the soft material part.

[0041] Cable receptacles 15 are provided distributed on the surface of the membrane 5, and a push-through membrane section 16 is assigned to each of them on the front side in the cable insertion direction (see arrow A in Figure 2). A cable grommet 17 is provided behind each push-through membrane section 16 in the insertion direction. The cable grommet 17 has a traction relief 18 for the inserted cable. When a cable (not shown) is inserted, it first penetrates the push-through membrane section 16 and then, as it is pushed further, reaches the area of ​​the traction relief 18 and is therefore finally pushed out through the cable receptacle.

[0042] A portion of the cable receptacle with a cable grommet 17 is arranged so as to be exposed on the rear surface of the membrane 5 .

[0043] In the area of ​​the traction relief 18, the cable grommet 17 has grommet parts 19a, 19b, between which an enlarged grommet part 20 is arranged, the cross-section of which is larger (has an enlarged diameter) than the cross-sections of the grommet parts 19a, 19b.

[0044] According to Figure 3 (see cross section), the latching projection 10a locks onto the frame element 4a with an associated projection 21 after insertion of the insert part 4. The sealing lip 11 is at least partially received in an associated recess 22 on the frame element 4a.

[0045] In the embodiment shown, the receptacle 2 and the insert 4 have a (circumferential) conical design (see FIG. 3).

[0046] In the alternative embodiment shown in Figure 4, the rear locking lug 10b snaps onto the rear face (see circular mark K in the cross-sectional view). The insert 4 used here is shown in Figures 6 and 8.

[0047] The features disclosed in the above description, in the claims and in the drawings may relate both individually and in any combination to realize various embodiments. [Brief explanation of the drawings]

[0048] [Figure 1] FIG. 1 is a schematic perspective view of a kit for a wall cable feedthrough, seen obliquely from the rear. [Figure 2] FIG. 2 is a schematic front view of a further kit for a wall cable feedthrough. [Figure 3] 3 is a schematic view from the back and in cross section of the kit for the wall cable feedthrough of FIG. 1. FIG. [Figure 4] FIG. 4 is a schematic view from the back and in cross section of a further kit for a wall cable feedthrough. [Figure 5] FIG. 5 is a schematic perspective view from the rear of an insert with front locking lugs. [Figure 6] FIG. 6 is a schematic perspective view from obliquely behind of a further insert part having rear locking lugs. [Figure 7] FIG. 7 is a schematic perspective view of the insert of FIG. 5, seen obliquely from the front. [Figure 8] FIG. 8 is a schematic perspective view of the further insert part of FIG. 6, obliquely from the front.

Claims

1. An insert part (4) for use in combination with a mounting part (1) for a wall cable feedthrough, comprising: the mounting part (1) has a plurality of receptacles (2) each for receiving one or more cable feed-through elements and is configured to be installed in the area of ​​a wall opening, The insertion part (4) is configured to be inserted into one of the plurality of receptacles (2); The insert (4) is a frame element (4a) made of a hard material part, with an element opening (6) that at least partially surrounds it; a membrane (5) made of a soft material part covering said element opening (6); a fastening device (10) configured to secure the frame element (4a) and the membrane (5) to the mounting part (1) when the frame element (4a) is inserted into one of the receptacles (2); and an arrangement of cable receptacles (15) distributed on a surface of the membrane (5), each of the cable receptacles (15) having a push-through membrane portion (16) arranged on a front surface thereof, seen in a cable insertion direction, extending in a rear direction relative to the surface of the membrane (5), and a cable grommet (17) arranged on a rear surface thereof, the cable grommet (17) being configured to form a traction relief for an inserted cable; An insert part (4), in which the fastening elements of the fastening device (10) are formed on the outer peripheral surface of the frame element (4a).

2. 2. The insert part (4) according to claim 1, characterized in that the fastening device (10) has latching projections (10a; 10b) configured to secure the frame element (4a) and the membrane (5) to the mounting part (1) when the frame element (4a) is inserted into one of the plurality of receptacles (2).

3. 3. An insert (4) according to claim 2, characterized in that the latching lugs (10a) are front latching lugs (10a) arranged on the front side of the frame element (4a).

4. 3. The insert (4) according to claim 2, characterized in that the latching lug (10b) is a rear latching lug (10b) arranged on the rear side of the frame element (4a).

5. 2. An insert (4) according to claim 1, characterized in that the frame element (4a) and the membrane (5) are made of plastic material.

6. 2. An insert (4) according to claim 1, characterized by a protrusion (11) in the region of the peripheral outer surface (8a, ..., 8d) of the frame element (4a).

7. 2. An insert (4) according to claim 1, characterized in that the frame element (4a) is at least partially embedded in the soft material part.

8. 2. The insert (4) according to claim 1, characterized in that the cable grommet (17) has a conical section at its cutting surface in the cable insertion direction.

9. 2. The insert (4) according to claim 1, characterized in that the frame element (4a) has a frame element part that extends into the element opening (6) between the cable receptacles (15) and is covered at least on the front side by the soft material part.

10. 2. The insert (4) according to claim 1, characterized in that in the cable receptacle (15), a receiving portion for the cable grommet (17) is arranged exposed on the back surface of the membrane (5) in the cable insertion direction.

11. 11. An insert (4) according to claim 10, characterized in that for at least some of the cable grommets (17), a bar connecting adjacent cable grommets to one another is arranged on the back surface of the membrane (5).

12. the cable grommet (17) has an enlarged grommet section (20) adjacent to the grommet section (19a; 19b) in the cable insertion direction, 9. An insert (4) according to claim 8, wherein the diameter of the enlarged grommet portion (20) at the cut surface is greater than the diameter of the grommet portion (19a; 19b).

13. 2. An insert (4) according to claim 1, characterized in that it has at least one sealing lip (14) arranged on the outer circumferential surface of the insert (4).

14. 1. A kit for a wall cable feedthrough, comprising: a mounting part (1) having a plurality of receptacles (2) each for receiving one or more cable feed-through elements and configured to be installed in the area of ​​a wall opening; and an insert (4) according to claim 1, adapted to be inserted into one of said receptacles (2).

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