Holding element for acoustic panels

Abstract

A holding element (1) for an acoustic panel (90) with a laminar structure, wherein the holding element (1) is a sheet metal part, preferably a stamped and bent sheet metal part, wherein the holding element (1) has a mounting area (4), a holding area (3) and an insertion tip (2), wherein the holding area (3) is arranged between the mounting area (4) and the insertion tip (2), wherein the insertion tip (2) points away from the holding area (3), wherein the holding area (3) has protruding barbs (6, 6A) which are aligned opposite the insertion tip (2), and wherein the mounting area (4) has at least one fastening possibility (8).

Description

[0001] The present invention relates to a support element for an acoustic panel with a laminar structure. The support element is configured to interact with the acoustic panel with a laminar structure.

[0002] Furthermore, the present invention relates to an arrangement comprising a holding element and an acoustic panel with a laminar structure.

[0003] Furthermore, the present disclosure relates to a manufacturing method for producing such a holding element.

[0004] Acoustic panels are a type of sound absorption used in open-plan offices and similar spaces. A large number of acoustic panels are attached to walls and / or ceilings. This can reduce noise in the corresponding rooms.

[0005] Furthermore, acoustic panels can be used as wall and / or ceiling cladding to conceal building installation technology such as ventilation ducts, cables, pipes, or the like.

[0006] Acoustic panels with a laminar structure are flat elements that have multiple layers, also called plies, of fiber composite materials along their thickness. Examples of such fiber composite materials include felt materials, plastic fiber materials, wood fiber materials, etc.

[0007] Such acoustic panels are attached to building elements, such as walls or ceilings, using suspension systems. Common fasteners such as screws, adhesives, or cable structures are used for this purpose. Depending on the fastener, the production of such a fastener can be relatively complex. Often, the installation of acoustic panels using such fasteners is also complex.

[0008] It is the object of the present invention to propose a holding element for acoustic panels with a laminar structure, the manufacture of which is simple and which facilitates the installation of such acoustic panels.

[0009] This object is achieved by a holding element for an acoustic panel with a laminar structure, wherein the holding element has a mounting area, a holding area and an insertion tip, wherein the holding area is arranged between the mounting area and the insertion tip, wherein the insertion tip points away from the holding area, and wherein the holding area has protruding barbs which are aligned opposite to the insertion tip.

[0010] In particular, the retaining element can be a sheet metal part, for example, a stamped and bent sheet metal part. This allows for sufficient stability and reliability while also allowing for fast and cost-effective production.

[0011] The holding area is directly adjacent to the insertion tip and the mounting area. The barbs are arranged in the holding area, oriented so that they are directed opposite the insertion tip. This can mean, in particular, that protruding barb tips point away from the insertion tip.

[0012] To install the retaining element in an acoustic panel with a laminar structure, the insertion tip, which is aligned along an insertion direction, is placed in a boundary area between two adjacent layers of this acoustic panel. The insertion direction is arranged along a longitudinal axis of the insertion tip and the retaining area. A force is then exerted on the mounting area so that the insertion tip is inserted between the two layers. To do this, force is applied to the mounting area to partially push the retaining element into the acoustic panel with a laminar structure. The retaining element is further inserted to a predefined installation depth until the retaining area with the barbs is arranged between the two layers. In particular, the predefined installation depth can be such that at least the entire mounting area is pressed (inserted) into the acoustic panel.

[0013] Once the retaining element is positioned at the predefined installation depth, it can no longer be separated from the acoustic panel without causing damage. The barbs will become entangled with the adjacent layers of the acoustic panel when subjected to a load in the opposite direction to the insertion direction.

[0014] Thanks to the insertion tip, the retaining element can (usually) be inserted into the acoustic panel manually, i.e., without the need for tools. It can therefore be mounted to the acoustic panel without the need for tools. To further facilitate the insertion of the retaining element into the acoustic panel, a slot for the insertion of the insertion tip and the retaining area can be created in the acoustic panel using a tool (e.g., a double-edged blade).

[0015] The retaining element can be manufactured as a sheet metal part, with various manufacturing processes being possible, such as a punching process with a bending operation (punching and bending process). In a punching and bending process, a sheet metal blank is first trimmed by a punching operation and then bent according to a predefined geometry. The punching operation and at least some of the bending operations can be performed in one stroke of an appropriately designed tool, i.e., in a single operation. In particular, the punching operation and the bending operations for bending the barbs out (from the main plane) can be performed in a single operation. This represents a simple and cost-effective way of producing such a retaining element.

[0016] The barbs can be created by shearing during bending, creating particularly sharp edges.

[0017] The insertion direction lies in a main plane. The insertion tip and the holding area are essentially flat along the main plane. A thickness direction of the holding area and the insertion tip extends perpendicular to the main plane. This thickness direction can correspond to a minimum material thickness of the holding element in the region of the insertion tip and the holding area. A transverse direction extends along the main plane, but transversely to the insertion direction.

[0018] In a preferred embodiment, the barbs are formed at least on two (in the transverse direction) opposite lateral edge regions of the holding element. The holding region is, for example, substantially flat and rectangular (e.g., along the main plane). The mounting region and the insertion tip can be arranged at two opposite ends of the holding region along the insertion direction. The barbs can be formed, in particular, on the lateral edge regions that lie on the outside along the transverse direction.

[0019] The barbs can be formed by oblique slits (also referred to as incisions). In particular, the respective slit in the corresponding lateral edge region can extend from one end of the holding region in the transverse direction (i.e., along the transverse direction from the outside) at an angle of 30° ± 10° toward the insertion tip. The slits can be produced, for example, directly using a stamping and bending process and / or by a shearing bending process.

[0020] Alternatively or in addition to the barbs on the opposite lateral edge areas, barbs can be arranged at a distance from the lateral edge areas in the holding area.

[0021] Such a barb can be defined by two connected slot sections in the holding area, which merge into one another at an apex and widen from there, so that the insertion-tip-side ends of these connected slot sections are spaced apart from one another in the transverse direction. The insertion-tip-side end of this barb extends between the two insertion-tip-side ends of these connected slot sections.

[0022] Each barb can be bent out of the main plane, in particular around its insertion-tip end as a bending region or bending axis. The insertion-tip end is used as a "bending hinge." The barb—and in particular a ("free") tip of the barb—protrudes from the main plane or protrudes from the main plane. In other words, the free tip of the respective barb protrudes along the thickness direction of the holding region from the remaining holding region, where no barb is formed.

[0023] The insertion tip end of the barb may, for example, extend at an angle of ± 15° relative to the transverse direction, in particular parallel to the transverse direction.

[0024] The barb can be elastically bent back into the main plane. This facilitates the insertion of the retaining element.

[0025] In a preferred embodiment, at least two barbs are arranged on each of two opposite lateral edge regions of the holding region. Depending on the properties of an acoustic panel to be attached, more than two barbs, for example three, four, five, or six barbs, can be arranged on each of the lateral edge regions. Consequently, the holding element has a total of four, six, eight, ten, or twelve barbs. The more barbs used, the larger the zone in which force is transferred from the acoustic panel to the holding element. One such force is, for example, the weight of the acoustic panel. This enables even loading of the holding element and thus of the acoustic panel.

[0026] In a preferred embodiment, the barbs are bent alternately forward and backward in the thickness direction. Alternatively or additionally, the same number of barbs can point forward and backward. The previously defined insertion direction, which is arranged along a longitudinal axis of the insertion tip and the holding area, can be regarded, for example, as an axis of symmetry (at least of the holding area). For example, the barbs can be arranged axially symmetrically around the axis of symmetry. As a result, the holding element interacts with both layers between which the holding element is arranged.

[0027] In a preferred embodiment, only the assembly area is deburred. After a punching or punch-bending operation, a so-called burr remains on the workpiece, which may have relatively sharp edges. Due to the burr remaining on the insertion tip and the holding area, the holding element has sharp edges in these two areas, allowing easy insertion between two adjacent layers of the acoustic panel. In other words, the insertion tip can have sharp edges. Furthermore, the area handled by an installer is deburred, making it comfortable to hold. This makes the holding element easy to handle.

[0028] In a preferred embodiment, the mounting area has an angled section as a press-in aid. This creates an engagement surface that is aligned at an angle to the insertion direction, so that an insertion force can be applied via this engagement surface. This allows for easy assembly. The angled section can be formed at an end of the holding element opposite the insertion tip in the insertion direction. A connection between the angled section and the holding area can comprise at least one bending edge, for example one bending edge or two bending edges. The bending edges can extend elongated parallel to the transverse direction.

[0029] In a preferred embodiment, the angled section or press-in aid is arranged perpendicular to the holding area. As a result, the engagement surface is perpendicular to the insertion direction. In other words, the angled section comprises a surface perpendicular to the insertion direction. This allows for efficient insertion of the holding element between two layers of an acoustic panel.

[0030] In a preferred embodiment, a smaller angle between the holding area (in particular the main plane) and a section of the mounting area adjacent to the holding area is at least 85° and at most 165°. The angle is measured between two adjacent surfaces. This allows for special mounting circumstances to be taken into account in which a straight transition would lead to unfavorable mounting conditions, for example when mounting at the transition between a wall and a ceiling. The section of the mounting area adjacent to the holding area can, for example, be the angled section or a transition section via which the angled section is connected to the holding area.

[0031] In a preferred embodiment, the mounting area has at least one fastening option. The fastening option can have an engagement element for engagement by an external fastening means.

[0032] The fastening option can, for example, comprise a hole or be designed as a hole. The holding element can be fastened to a support element, such as a wall, masonry or ceiling, through the hole by means of a screw, a nail, a rivet, a clamp or other fastening means. Alternatively or additionally, the fastening option can be designed for the engagement of a hook, a carabiner, a rope and / or the like. The hook, the carabiner, the rope and / or the like can thus be connected to the holding element. This allows for simple assembly. The fastening option can have at least one (one or more) clips. Alternatively or additionally, the fastening option can comprise a permanent magnet.

[0033] The fastening option can be configured as an engagement element for suspending the support element and / or securing it against falling. The acoustic panel is also suspended and / or secured against falling via the support element. For example, the acoustic panel can be fixed to a room ceiling via the support element.

[0034] The attachment option may include a loop holder for a rope loop.

[0035] Alternatively or additionally, the fastening option may comprise a locking device for locking a rope thickening of a rope.

[0036] In a preferred embodiment, the at least one fastening option is arranged in the angled section. As a result, the at least one fastening option is as far away from the acoustic panel as possible when the retaining element is mounted on the acoustic panel. This is particularly suitable for horizontal fastening of the acoustic panel. With horizontal fastening, the insertion direction extends (at least substantially) parallel to a direction of gravity when the acoustic panel is fastened by means of the retaining element. Accordingly, there is more space during assembly to attach fastening means. This leads to simple installation.

[0037] According to one aspect, the mounting element may have an outer portion.

[0038] In one embodiment, the outer section has at least one fastening option.

[0039] The outer portion may extend (at least substantially) parallel to the main plane and / or be spaced apart from the main plane along the thickness direction. The outer portion may be connected to the holding portion via the remainder of the mounting portion. In particular, the holding portion and the outer portion may extend parallel to the insertion direction away from the remainder of the mounting portion (i.e., the mounting portion minus the outer portion). The remainder of the mounting portion may comprise the angled portion. In particular, the angled portion may be the remainder of the mounting portion. The outer portion is connected to the holding portion (at least) via the angled portion.

[0040] Such a retaining element is particularly suitable for vertically mounting the acoustic panel. With vertical mounting, the insertion direction extends (at least substantially) perpendicular to a direction of gravity when the acoustic panel is secured by means of the retaining element.

[0041] In one embodiment, the mounting area comprises the at least one fastening possibility in a section that connects the angled section to the holding section.

[0042] The retaining element can also have multiple fastening options. The individual fastening options can be designed as described.

[0043] In a preferred embodiment, the retaining element has an insertion depth limit. The insertion depth limit (depth limit) defines the depth to which the retaining element can be inserted into the acoustic panel. In other words, the insertion depth limit determines the predefined installation depth. This makes it possible to attach multiple retaining elements to an acoustic panel, with all inserted retaining elements being inserted at the same depth into the acoustic panel. This simplifies installation. The depth limit can be formed, for example, by one, several, or all of the following elements: - a kink, in particular a bending edge) between the holding area and the mounting area - a head start.

[0044] The projection may protrude from the main plane along the thickness direction.

[0045] Such a projection can be formed, for example, by a pin which is inserted at a boundary between the holding area and the mounting area.

[0046] Such a projection can be formed similarly to the barbs: The projection is partially defined by a slit, for example, a slit extending from one of the side edges or two slit sections converging at a vertex. Other possible configurations for the projection include an L-shaped slit extending along one of the side edges, a U-shaped slit, or a trough-shaped slit.

[0047] Unlike barbs, the projection can be connected to the holding area and / or the mounting area at an end facing the mounting area and bent around this end facing the mounting area. In this case, the end facing the mounting area forms the "bend hinge." Alternatively or additionally, the projection can be bent more than the barbs relative to the main plane, for example, so that it runs (essentially) perpendicular to the main plane. Due to the greater bending, the projection can automatically be less elastic than the barbs (dislocation hardening). Furthermore, the projection can be larger than the barbs. By forming the projection in a similar way to the barbs, it can be manufactured together with the barbs in a single operation and / or in the stamping and bending machine.

[0048] The retaining element can be formed in a region of the retaining region and / or the mounting region that is farther away from the insertion tip in the insertion direction than the barbs. In particular, the retaining element can be formed at a transition between the retaining region and the mounting region.

[0049] The holding area can also have a through-hole for inserting an additional securing element. For example, the through-hole can be a cylindrical opening, e.g., a hole or punched-out section, along the thickness direction. The securing element can be, for example, a pin. The acoustic panel can have a corresponding through-hole. The holding element is then inserted into the acoustic panel such that the through-hole of the holding element aligns with the through-hole of the acoustic panel. The securing element, e.g., the pin, can be inserted through the through-hole of the acoustic panel and the through-hole of the holding element simultaneously in one step. This additionally fixes or secures the acoustic panel and the holding element in a predetermined relative position to one another. This facilitates correct installation.

[0050] In a preferred embodiment, the insertion tip has a (tapering) angle of less than 40°, preferably less than 35°. In particular, this can be an angle at which side edges of the insertion tip, which delimit the insertion tip in the transverse direction, taper towards a free end of the insertion tip (in the insertion direction). In other words, it can be an angle at which the insertion tip tapers towards its free end (in the transverse direction). In this case, the taper angle describes an angle that can be determined from a plan view along the thickness direction.

[0051] The insertion tip can have a consistent material thickness along its entire length, except for any manufacturing-related deviations, such as burrs or the like. The material thickness can be determined by the thickness of a starting sheet from which the holding element is manufactured.

[0052] In particular, a material thickness, especially a sheet thickness, can be consistent across the entire retaining element. This makes it possible to form the retaining element from a single, uniformly thick sheet.

[0053] In a preferred embodiment, the insertion tip is rounded. This means that the tip of the insertion tip (the free end or the end of the insertion tip facing away from the holding area along the insertion direction) is rounded and thus has a curve. The curve is visible from a top view along the thickness direction. The rounded insertion tip facilitates easy insertion of the holding element into the acoustic panel.

[0054] In a preferred embodiment, the retaining element has two retaining areas and two insertion tips, with the two retaining elements being connected to each other by a common mounting area. Each of the two insertion tips or each of the two retaining areas is inserted between two adjacent layers during installation on an acoustic panel. As a result, the retaining element interacts with the acoustic panel at two different layer transitions with at least three layers. This results in good load-bearing capacity. The main planes of the two retaining areas can be parallel.

[0055] Furthermore, the object is achieved by an arrangement comprising an acoustic panel with a laminar structure and a holding element according to the invention.

[0056] In particular, the holding area and the insertion tip of the holding element can be arranged between two adjacent layers of the acoustic panel. To do this, first the insertion tip and then the holding area of the holding element are inserted between two adjacent layers. The barbs prevent the holding element from being pulled out in the opposite direction to the insertion direction. This allows for easy installation of the holding element.

[0057] The embodiments, modifications and advantages described with regard to the holding element apply accordingly with regard to the arrangement and vice versa.

[0058] Furthermore, a method for producing a holding element according to the invention is disclosed, wherein the holding element with an insertion tip, a holding region and a mounting region with barbs is formed from a sheet metal by a punching operation and bending operations.

[0059] The punching operation involves the chipless punching of internal and external contours. The bending operations involve bending to the final contour. This is an efficient manufacturing process.

[0060] In particular, the punching operation and at least the bending operations for bending the barbs out (from the main plane) can be performed in a single operation. This process is also called a punch-bending process. This further optimizes production. It may also be possible to perform the punching operation and all bending operations in a single operation.

[0061] In a preferred embodiment, the assembly area is deburred after the stamping and bending process (i.e., after the joint operation). This simplifies handling by an assembler.

[0062] The embodiments, modifications and advantages described with regard to the holding element apply accordingly with regard to the method and vice versa.

[0063] The invention further relates to the use of a retaining element according to the invention for fastening an acoustic panel with a laminar structure and to a system comprising an acoustic panel with a laminar structure and at least one retaining element according to the invention. Furthermore, the invention relates to a system for suspending an acoustic panel with a laminar structure, wherein the system comprises at least one cable (for example, a wire cable) and at least one retaining element according to the invention.

[0064] The invention is described below using a preferred embodiment in conjunction with the drawings. Fig. 1 a schematic perspective view of a first embodiment of a holding element, Fig. 2 is a schematic front view of the first embodiment, Fig. 3 a schematic side view of the first embodiment, Fig. 4 a schematic view of an arrangement comprising the first embodiment of the holding element in combination with two layers of an acoustic panel with a laminar structure, wherein the acoustic panel is arranged vertically and is held by the holding element, Fig. 5 a schematic perspective view of a second embodiment of a holding element, Fig. 6 a schematic side view of the second embodiment, Fig. 7 a schematic view of a third embodiment of a holding element, Fig. 8 a schematic view of a fourth embodiment, a holding element Fig. 9 a schematic view of the fourth embodiment with a fastening means, Fig. 10 is a schematic view of a fifth embodiment of a holding element, Fig. 11 is a schematic view of the fifth embodiment with a fastening means, Fig. 12 a schematic perspective view of a sixth embodiment of a holding element, Fig. 13 a schematic perspective view of a seventh embodiment of a holding element for horizontally fastening an acoustic panel with a laminar structure, Fig. 14 is a further schematic perspective view of the seventh embodiment, Fig. 15 is yet another schematic perspective view of the seventh embodiment, Fig. 16 a schematic perspective view of an arrangement comprising the holding element according to the seventh embodiment and a wire rope holder attached thereto, Fig. 17 a schematic perspective view of the arrangement of Fig. 16, further comprising an acoustic panel with a laminar structure, wherein the acoustic panel is attached to the wire rope holder by means of the holding element and is arranged horizontally, Fig. 18A to 18C show a modification of the first embodiment of the holding element with a first variant of a loop holder for a rope loop, Fig. 19A to 19C show a modification of the first embodiment of the holding element with a second variant of a loop holder for a rope loop, and Fig. 20A to 20C show a modification of the first embodiment of the holding element with a locking device for locking a rope thickening of a rope.

[0065] The same or similar elements, or elements that perform the same or similar function, are designated by the same reference numerals below.

[0066] Fig. 1 shows a first embodiment of a holding element 1. The holding element 1 has an insertion tip 2, a holding region 3, and a mounting region 4. The insertion tip 2 has a rounded portion 5 at its actual tip. The holding region 3 is arranged between the insertion tip 2 and the mounting region 4.

[0067] Furthermore, the holding area 3 in this first embodiment has six barbs 6, which are formed in lateral edge areas of the holding area 3, ie in areas at the edges of the holding area 3 along a transverse direction QR (see Fig. 2). The barbs 6 are oriented such that their tips are directed opposite the insertion tip 2. Furthermore, the barbs 6 are angled relative to a plane in which the insertion tip 2 and the remaining holding area lie (a main plane). The barbs 6 are alternately angled or bent forwards and backwards in the thickness direction DR. In total, three barbs point forwards and three barbs point backwards. The thickness direction DR is perpendicular to the main plane, i.e. perpendicular to an insertion direction ER and perpendicular to the transverse direction QR. The thickness direction DR refers to a thickness of a sheet from which the holding element 1 is made, in the holding area 3 and / or in the area of the insertion tip 2.

[0068] The mounting area 4 adjoins the holding area 3 and has a press-in aid. In the present exemplary embodiment, the press-in aid is designed as an angled section 7. Furthermore, a fastening option 8 is formed in the mounting area 4, here in the form of a hole 81. The hole 81 is arranged in the same plane as the insertion tip 2 and thus in the main plane. Alternatively or additionally, the fastening option 8 (here the hole 81) is arranged centrally with respect to a width of the holding element 1 along the transverse direction QR. At least the insertion tip 2 and the holding area 3 extend in the longitudinal or insertion direction ER, and in this embodiment also the mounting area 4 (apart from the angled section 7, which extends perpendicular to the insertion direction ER). The width or transverse direction QR (width) extends perpendicular to the longitudinal or insertion direction ER and perpendicular to the thickness direction DR.

[0069] Fig. 2 shows a technical drawing of the holding element 1 of the first embodiment. The holding element 1 has a length a, wherein the length a is between 50 mm and 150 mm inclusive, preferably between 70 mm and 100 mm. The length a can be measured along the insertion direction ER. Furthermore, the holding element 1 has a width b, which is between 10 mm and 50 mm inclusive, preferably between 15 mm and 25 mm. The width b can be measured along a transverse direction QR. The transverse direction QR can run parallel to the main plane and perpendicular to the insertion direction ER. In the mounting area 4, the fastening option 8 is arranged in the form of the hole 81, wherein the hole 81 has a diameter c of approximately 8 mm. The term "approximately" can, for example, include a range of plus or minus 20% of the stated value.The insertion tip 2 has a (taper) angle d of less than 40°, preferably less than 35°. Alternatively or additionally, the taper angle can be at least 15°. Furthermore, FIG. Fig. 2 a transition e between the barbs 6 and the remaining area of the holding area 3. The transition e can be, for example, approximately 5 mm.

[0070] Fig. 2 also shows an example of how a barb 6A could also be implemented from the lateral edge areas (along the transverse direction QR). Fig. 1 and Fig. 3 do not show the barb 6A, and the barb 6A is optional. In general, multiple or even only barbs like the barb 6A could be formed. However, the barbs 6 are particularly easy to manufacture.

[0071] Fig. 3 shows the holding element 1 in a side view. The holding element 1 has the insertion tip 2 and the mounting area 4, which enclose the holding area 3 between them. The mounting area 4 has the angled section 7, which has a depth f of approximately 4 mm. In the present exemplary embodiment, the angled section 7 is angled by an angle h = 90° with respect to the main plane (i.e., in particular with respect to the insertion tip 2). The transition is designed as a bent edge 7A, which has a radius g of approximately g = 1 mm. The barbs 6 each have an angle i of approximately i = 30° with respect to the insertion tip 2. Furthermore, the barbs 6 have a length j of approximately j = 8 mm. The angle i could also be referred to as the elevation angle with respect to the main plane.

[0072] Fig. Figure 4 shows the holding element 1 in an installed state, wherein the holding element 1 is at least partially arranged between a first layer 91 and a second layer 92 of an acoustic panel 90. The first layer 91 is transparent for illustrative purposes. The insertion tip 2 and the holding area 3 with its barbs 6 are surrounded by the two layers 91 and 92. The barbs 6 pointing forward engage with the first layer 91, while the barbs 6 pointing backward interact with the second layer 92. Accordingly, the barbs 6 pointing backward are in Fig. 4 only partially visible.

[0073] In Fig. 4 also clearly shows that the angled section 7 is connected to the rest of the mounting section 4 via a bend. The bend is designed in the form of a bent edge 7A. This means that at this point, the sheet metal from which the holding element 1 is made has been bent / kinked by a certain angle (here 90°).

[0074] Fig. 5 shows a second embodiment of a holding element 1 in a perspective view, Fig. 6 in a side view.

[0075] For the second embodiment and all further embodiments, identical reference numerals are used for the same elements and only the differing features are described in more detail.

[0076] In Fig. 5, bending edges 6B, by means of which the corresponding barbs 6 are bent out of the main plane, are more clearly visible.

[0077] The holding element 1 in Fig. 2 additionally includes an insertion depth limiter. The insertion depth limiter prevents the retaining element 1 from being inserted further than a predefined installation depth into an acoustic panel with a laminar structure (cf. the acoustic panel 90 in Fig. 4). In other words, the insertion depth limiter serves as an end stop when inserting into the acoustic panel 90. In this example, the insertion depth limiter comprises two projections 11. In the insertion direction ER, the projections 11 are arranged at a transition between the holding area 3 and the mounting area 4.

[0078] Each of the projections 11 extends transversely to the main plane from the main plane. The projections 11 are produced similarly to the barbs 6 by punching and bending (e.g., using the punch-bending process), but are bent more strongly. The elevation angle of the projections 11 is Fig. 5 exactly 90°. The two projections 11 are in Fig. 2 in opposite orientations along the thickness direction DR from the main plane. In one modification, both projections 11 could protrude from the main plane in the same orientation along the thickness direction DR. In other modifications, only one projection 11 may be formed, or more than two projections 11 may be formed.

[0079] Fig. 7 shows a third embodiment of a holding element 1. The holding element 1 has two insertion tips 2 and two holding areas 3, wherein the two holding areas 3 are connected to one another by a common mounting area 4. The mounting area 4 has a fastening option 8, which in the third embodiment is designed as a hole 81. The fastening option 8 can be used, for example, as an engagement means to fasten a wire rope holder and / or a screw connection to the holding element 1 (cf. Fig. 9, Fig. 16 and Fig. 17).

[0080] The two holding areas 3 and insertion tips 2 are oriented parallel to each other. The mounting area 4 is arranged perpendicular to the insertion tips 2 and the holding areas 3. The two insertion tips 2 are designed to be inserted between different layers of an acoustic panel. The barbs 6 are also shown here.

[0081] The Fig. The holding element 1 shown in Figure 7 with the two holding areas 3 is particularly suitable for the vertical fastening of an acoustic panel with a laminar structure (cf. acoustic panels 90 in Fig. 4 and Fig. 17). The two holding areas 3 increase the maximum holding force. Therefore, fewer holding elements 1 are required to secure the acoustic panel, and the acoustic panel can be heavier.

[0082] Fig. 8 and Fig. 9 show a fourth embodiment of the holding element 1. The angled section 7, which extends perpendicular to the main plane (and thus along the thickness direction DR and the transverse direction QR), is here connected to the holding area 3 via an inclined transition section 4A.

[0083] The transition section 4A directly adjoins the holding area 3. The mounting area 4, or more precisely its transition section 4A, and the holding area 3 are connected by a bend. The bend is designed in the form of a bent edge 4B. The transition section 4A of the mounting area 4 is inclined relative to the holding area 3. It is possible for a smaller angle between the transition section 4A and the holding area 3 (and relative to the main plane) to have a value in a range of 85° to 165°. Fig. 9 it can be seen that the smaller angle here is approximately 150°.

[0084] The angled section 7 directly adjoins the transition section 4A. The angled section 7 and the transition area 4A are connected to each other by the bend in the form of the bending edge 7A. An inclination between the angled section 7 and the transition area 4A is adapted such that the angled section 7 extends perpendicular to the main plane (and thus perpendicular to the holding area 3 and to the insertion tip 2) and can be used particularly well as an insertion aid.

[0085] The inclination of the transition section 4A at the bending edge 4B can also serve as an insertion depth limit.

[0086] The fourth embodiment also has a fastening option 8 in the mounting area 4, in Fig. 8 shown in the form of a hole 81. More precisely, the fastening possibility 8 can be arranged centrally in the angled section 7.

[0087] In Fig. 9, a fastening means 13 is engaged with the fastening option 8. The holding element 1 is held by this engagement. In the present embodiment, the fastening means 13 more precisely comprises a screw connection 14. The screw connection 14 can serve, for example, to secure the holding element 1 to a cable (possibly by means of a wire cable holder), to a rail, or directly to a building element, such as a wall or a ceiling.

[0088] The fourth embodiment (see Fig. 8 and Fig. 9) of the holding element 1 also has the barbs 6.

[0089] Due to the transition area 4A being inclined relative to the main plane, the angled section 7 is arranged centrally above the holding area 3 and the insertion tip 2. This facilitates a straight insertion of the holding element 1 into an acoustic panel with a laminar structure by pressing on the angled section 7. Likewise, the fastening option 8 is arranged centrally above the holding area 3. This facilitates a straight vertical fastening of the acoustic panel with a laminar structure.

[0090] It is also a combination of the embodiments in Fig. 8 and Fig. 7 possible (not shown), for example by using the embodiment of Fig. 8 is reflected in a plane parallel to the main plane in Fig. 8 and in which the top left edge is Fig. 8 of the mounting area. With an equal distance between the main planes of the holding areas 3 and the insertion tips 2, the angled section 7 can thus be Fig. 7 can be enlarged.

[0091] Fig. 10 and Fig. 11 show a fifth embodiment of the holding element 1, which is essentially the same as the fourth embodiment ( Fig. 8 and Fig. 9). The fourth and fifth embodiments of the holding element 1 differ in the design of the fastening option 8. In the fifth embodiment, the fastening option in the form of a hook receptacle 18 is designed to be connected to a hook 15, in particular a snap hook, as fastening means 13. Fig. 11 shows an arrangement in which the hook 15 engages in the fastening option 8 (the hook receptacle 82). The hook 15 is attached to a cable 19. Accordingly, the holding element 1 is held by the hook 15 on a cable 19. With the Fig. In the arrangement shown in Figure 11, an acoustic panel with a laminar structure can be easily and safely fixed vertically, or more precisely, suspended.

[0092] Fig. 12 shows a holding element 1 in a sixth embodiment. The sixth embodiment is similar to the third embodiment in Fig. 8.

[0093] In the holding area 3 of the sixth embodiment, a pin 16 is additionally arranged. The pin 16 is aligned in the thickness direction DR and is perpendicular to the main plane (thus also to the plane of the insertion tip 2). It is inserted into a matching receiving opening 16A arranged in the holding area 3.

[0094] The pin 16 can serve to additionally secure the retaining element 16 in an acoustic panel with a laminar structure. Accordingly, the acoustic panel can have through-holes along the thickness direction DR so that, after inserting the retaining element 1 into the acoustic panel, the pin 16 can be pushed through the acoustic panel and the receiving opening 16A.

[0095] Alternatively or additionally, a receiving opening for a pin and / or a pin can be arranged at a transition between the holding area 3 and the mounting area 4 (not shown). In this case, the corresponding pin can serve as an insertion depth limiter.

[0096] The Fig. 13 to 17 relate to a holding element 1 according to a seventh embodiment. Fig. 13 to 15 show this holding element 1 as such. Fig. 17 it can be seen that this holding element 1 is designed for the horizontal fastening of an acoustic panel 90 with a laminar structure.

[0097] In the holding element 1 according to the seventh embodiment, the mounting region 4 has the angled section 7 and an outer section 17. The outer section 17 is connected to the holding region 3 via the angled section 7. The outer section 17 extends parallel to the main plane, i.e., parallel to the insertion tip 2 and the holding region 3. The outer section 17 is arranged offset from the main plane in the thickness direction DR. A distance DR1 is formed between the outer section 17 and the mounting section 3 in the thickness direction DR.

[0098] Along the insertion direction ER, both the holding area 3 with the adjoining insertion tip 2 on the one hand and the outer section 17 on the other hand extend parallel to each other with the same orientation away from the angled section 7.

[0099] In detail, the angled section 7 is directly connected to the holding area 3 via a (first) bend in the form of the (first) bending edge and extends 90° to the main plane. The outer section 13 is directly connected to the angled section 7 via a (second) bend in the form of a (second) bending edge 7B.

[0100] In a modification not shown, there may also be a transition section between the angled portion 7 and the holding portion 3, similar to the fourth and fifth embodiments.

[0101] In this case, at least one fastening option 8 can be formed in the outer section 17. The Fig. 13 to 15 show a fastening possibility 8 in the form of a hole 81. Alternatively or additionally, an engagement element for a hook could be provided (cf. Fig. 11).

[0102] Fig. 16 shows an arrangement with the holding element 1 from the Fig. 13 to 15 and a wire rope holder 18. The wire rope holder 18 serves as the fastening means 13. It engages with the fastening option 8. The holding element 1 is secured to the wire rope holder 18, more precisely at its lower end. The holding element 1 can be fixed to the wire rope holder 18, for example, by a screw connection. In general, the hole used as the fastening option 8 does not necessarily have to be round. It could, for example, be shaped such that it forms a bayonet lock with a lower end of the wire rope holder 18. The holding element 1 can be secured to the wire rope holder 18 by means of a bayonet lock. Other types of securing, e.g. magnetic, are also conceivable.

[0103] Fig. Figure 17 shows an arrangement 100. It comprises the holding element 1 and the acoustic panel 90 with a laminar structure. Two adjacent layers 91, 92 of the acoustic panel 90 are shown as examples. Optionally, the arrangement 100 includes the wire rope holder 18 as a fastening means 13 for the holding element 1.

[0104] The insertion tip 2 and the holding area 3 of the holding element 1 are inserted between the adjacent layers 91, 92 of the acoustic panel 90.

[0105] The retaining element 1 is inserted so far that the angled section 7 rests against a lateral end surface of the acoustic panel 90 (more precisely, against an upper part of the acoustic panel 90 with the layer 91). The angled section 7 thus also serves as an insertion depth limiter.

[0106] The barbs 6 prevent the holding element 1 from being pulled out of the acoustic panel 90.

[0107] A direction of gravity SR is in Fig. 17 is indicated by an arrow. The acoustic panel 90 is secured against falling by the holding element 1 in a vertical orientation on the wire rope holder 18. The wire rope holder 18 can in turn be suspended from a rope (not shown).

[0108] In particular, in the case of the seventh embodiment, a length of the holding element 1 along the insertion direction ER can also be longer than 150 mm.

[0109] The Fig. 18A to 20C show, starting from the first embodiment, various exemplary variants for the fastening element 8 and how these variants can be used to suspend the holding element 1 from a cable 19.

[0110] Fig. 18A to 18C show the holding element 1 with a variant of the fastening option 8 with slots 83 in lateral edge areas (along the transverse direction QR) for suspending the holding element 1 on a cable 19. Fig. 18A is a perspective view, Fig. 18B a rear view and Fig. 18C is a side view. More specifically, the slots 19 serve for attachment to a loop 19A of the rope 19.

[0111] In detail, at least one pair of slots 83 are formed, which are formed symmetrically in the two lateral edge regions of the mounting region 4.

[0112] The slots 83 form an "outer" loop holder. Starting from its opening at the lateral end (in the transverse direction QR) of the mounting area, each slot 83 runs diagonally toward the insertion direction ER and away from the insertion tip 2. This allows the holding element 1 to be suspended particularly securely.

[0113] In this variant, hole 81 can be omitted as shown.

[0114] The rope 19 can be, for example, a wire rope. The loop 19A at a (lower) end of the rope 19 can be formed, for example, by a ferrule 19B.

[0115] A cable feedthrough 84 can be provided in the angled section 7. The cable feedthrough 84 is formed here as a recess in the angled section 7. The cable feedthrough 84 has a clear width that is larger than the diameter of the cable 19, but smaller than the width of the ferrule 19B. Thus, the contact of the ferrule 19B with the area around the cable feedthrough 84 can serve as an additional securing device. Furthermore, the cable feedthrough 84 facilitates the straight suspension of the retaining element 1.

[0116] Fig. 19A to 19C show the holding element 1 with a variant of the fastening option 8 with a central loop holder 85 for suspending the holding element 1 on the cable 19, more precisely on the loop 19A (at the lower end) of the cable 19. Fig. 19A is a perspective view, Fig. 19B a rear view and Fig. 19C a side view.

[0117] The loop holder 85 comprises a recess with a U-shaped or V-shaped basic shape, the legs of which point upwards, i.e. away from the insertion tip 2. The recess defines a retaining tongue 86. The retaining tongue 86 projects downwards into the recess 86. The hole 81 is formed above the recess. The loop 19A of the cable 19 can be guided through the hole 81 and placed around the retaining tongue 86. This securely suspends the holding element 1 from the cable 19. At the upper ends of the legs of the recess, the leg ends can be widened inwards, i.e., have additional recesses 87 inwards in the transverse direction QR. This serves to additionally secure the loop 19A of the cable 19 in the desired position.

[0118] Fig. 20A to 20C show the holding element 1 with a variant of the fastening option 8 with a snap-in element 88, 89 for a rope thickening. Fig. 20A is a perspective view, Fig. 20B a rear view and Fig. 20C a side view.

[0119] In these figures, the rope thickening is formed by a thickened rope end 19C. The thickened rope end 19C can, for example, be cast onto the rope, for example in the form of a cast-on zinc alloy.

[0120] The rope thickening can also be pressed on or formed in another way. For example, a ferrule 19B can also be used as in Fig. 19A to 19C represent a suitable rope thickening.

[0121] The locking element 88, 89 comprises a larger threading opening 88 and an adjacent stop passage 89. The stop passage 89 extends upwards from the threading opening 88 (here, away from the insertion tip 2). The threading opening 88 is large enough to allow the rope thickening to be inserted through. The width of the stop passage 89 is larger than the diameter of the rope 19, but smaller than the rope thickening. When the rope 19 is guided through the stop passage 89, the rope thickening can come into contact with the area of the stop passage 89. Thus, the rope 19 cannot be pulled upwards out of the stop passage 89.

[0122] In the example shown, the threading opening 88 is depicted as a circular hole whose diameter is large enough for the rope extension to pass through. The stop opening 89 is a slotted hole that extends upward from the threading opening (i.e., opposite to the insertion direction ER). The width of the slotted hole in the transverse direction is larger than the diameter of the rope, but smaller than the extension of the rope extension transverse to a rope direction at the rope extension.

[0123] As in Fig. 18A to 19C, a cable passage 84 is also formed in the angled section 7, centrally along the transverse direction QR.

[0124] All embodiments of the retaining element 1 are made of sheet metal. This is processed using a stamping and bending process, whereby the sheet metal is first stamped and then bent into the desired shape. The stamping and bending process combines the steps of stamping and bending into a single operation. Only the pin 16 of the sixth embodiment, Fig. 12, is subsequently arranged on the punched and bent holding element 1. In addition, with regard to the Fig. In the embodiments shown in Figures 7 and 13 to 15, one or more of the bending edges 7A, 7B are formed in a subsequent step. However, at least the punching operation and the bending operation for bending the barbs 6 can then be performed in a single operation.

[0125] In general, the bending radii of one, several, or all of the bending edges 4A, 6A, 7A, 7B can each be in a range of 0.5 mm to 2 mm. Different bending edges 4A, 6A, 7A, 7B can generally have different bending radii or the same bending radii.

[0126] After the retaining element 1 has been manufactured using the stamping and bending process, the assembly area 4 can be deburred in an optional step. This means that punching burrs are removed and / or edges are broken.

[0127] To attach the respective retaining element 1 to the acoustic panel 90 with a laminar structure, the insertion tip 2 is inserted between two adjacent layers 91, 92, also called plies 91, 92. For this purpose, the retaining element 1 is pushed into the acoustic panel 90 between the two layers 91, 92 in the direction of the insertion tip 2 (in the insertion direction ER) by applying pressure to the mounting area 4, in particular to the angled area 7 serving as a press-in aid. A slight pivoting in the transverse direction QR can facilitate this process.

[0128] Based on the insertion depth limitation (e.g. comprising the projections 11), a user can particularly easily recognize visually and haptically that the holding element 1 is arranged deep enough or sufficiently deep in the acoustic panel 90.

[0129] The rounded insertion tip 2 makes it easier to insert into the acoustic panel 90.

[0130] An optional slotting tool can be used to create a channel for the retaining element in advance. A double-edged blade is pressed between the layers. The retaining element can then be easily pushed into the existing channel.

[0131] If a holding element 1 arranged in the acoustic panel 90 is loaded opposite to the insertion direction ER, i.e. opposite to the orientation of the insertion tip 2, the barbs 6 become entangled in the two layers 91, 92.

[0132] Consequently, the holding element 1 can no longer be separated from the acoustic panel 90 without causing damage. List of reference symbols 1 holding element 2 insertion tip 3 Holding area 4 Assembly area 4A transition section 4B bending edge 5 Rounding 6, 6A barbs 6B bending edge 7 Press-in aid 7A, 7B bending edge 8 Mounting options 11 lead 13 Fasteners 14 screw connection 15 hooks 16-pin 17 Outer section 18 wire rope holders 19 rope 81 holes 82 hook holder 83 slot 84 Rope feedthrough 85 loop holders 86 retaining tongue 87 recesses 88 threading opening 89 Stop guide 90 acoustic panel 100 arrangement 91, 92 layer (position) a, j length b width c diameter d (taper) angle d the transition f depth g radius i, h angle ER insertion direction DR thickness direction DR1 distance QR transverse direction SR direction of gravity

Claims

[1] A holding element (1) for an acoustic panel (90) with a laminar structure, wherein the holding element (1) is a sheet metal part, preferably a stamped and bent sheet metal part, wherein the holding element (1) has a mounting area (4), a holding area (3) and an insertion tip (2), wherein the holding area (3) is arranged between the mounting area (4) and the insertion tip (2), wherein the insertion tip (2) points away from the holding area (3), wherein the holding area (3) has protruding barbs (6, 6A) which are aligned opposite the insertion tip (2), and wherein the mounting area (4) has at least one fastening possibility (8). [2] The holding element (1) according to claim 1, wherein the barbs (6) are formed at least on two opposite edge regions of the holding region (3). [3] The holding element (1) according to one of the preceding claims, wherein at least two barbs (6) are arranged on each of two opposite side regions of the holding region (3). [4] The holding element (1) according to one of the preceding claims, wherein the barbs (6) are bent alternately forwards and backwards in the thickness direction (DR). [5] The holding element (1) according to one of the preceding claims, wherein only the mounting area (4) is deburred. [6] Holding element (1) according to one of the preceding claims, wherein a smaller angle between the holding region (3) and a section (4A) of the mounting region (4) adjacent to the holding region (3) is at least 85° and at most 165°. [7] The holding element (1) according to one of the preceding claims, wherein the mounting area (4) has an angled section (7) as a press-in aid. [8] Holding element (1) according to claim 7, wherein the angled portion (7) is arranged perpendicular to the holding area (3). [9] Holding element (1) according to one of claims 7 or 8, wherein the at least one fastening possibility (8) is arranged in the angled section (7) or wherein the mounting area (4) has an outer section (17) with the at least one fastening possibility (8) and the outer section (17) is connected to the holding area (3) via the angled section (7). [10] Holding element (1) according to one of the preceding claims, wherein the holding element (1) has an insertion depth limitation (11). [11] Holding element (1) according to one of the preceding claims, wherein the insertion tip (2) has a taper angle (d) of less than 40°, preferably less than 35°. [12] Holding element (1) according to one of the preceding claims, wherein the insertion tip (2) is rounded. [13] Holding element (1) according to one of the preceding claims, wherein the holding element (1) has two holding regions (3) and two insertion tips (2), wherein the two holding regions (3) are connected to one another by a common mounting region (4). [14] Arrangement (100) comprising an acoustic panel (90) with a laminar structure and a holding element (1), wherein the holding element (1) is designed according to one of the preceding claims, and wherein the holding region (3) and the insertion tip (2) are arranged between two adjacent layers (91, 92) of the acoustic panel (90).

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