Suspension device for suspending objects and room ceiling

Abstract

The invention relates to a suspension device for suspending an object, for example a luminaire, from a room ceiling, comprising a ceiling-side receiving part and a suspension means (10), for example a suspension rope, which can be fixed at the receiving part, the ceiling-side receiving part being configured as a screw-in part (1, 14, 23, 24) which can be sunk into the ceiling, the screw-in part having a downwardly open receiving recess (4, 26), and the suspension means (10) having a fixing section (12, 25) which can be introduced into the receiving recess (4, 26) from below.

Description

Technical Field

[0001] The present invention relates to a suspension device for suspending objects, such as light fixtures, from the ceiling of a room, the suspension device comprising a receiving part on the ceiling side and a suspension device, such as a suspension rope, that can be fixed to the receiving part, and the present invention relates to a room ceiling with a suspension device according to the present invention. Background Technology

[0002] Suspension devices are used to suspend various objects from the ceiling of a room, most commonly using ropes, chains, rods, etc. For example, suspension devices can be used to suspend single light fixtures or decorative individual elements, busbars, light strips, and multi-piece light structures. They are also used to suspend light fixtures in combination with decorative elements, such as crystal or glass, which themselves do not contain light-emitting devices / light sources but together form a single object.

[0003] In traditional suspension systems, ceiling-side receiving components are fixed to the ceiling, and the suspension devices are either pre-attached to these components or installed after the ceiling is fixed. The installation of ceiling-side receiving components is typically done via plastering (or surface mounting) using suitable fasteners, such as threaded fasteners. The advantage of plastering is its simplicity, achieved with readily available tools. However, a disadvantage is that such ceiling-side receiving components are aesthetically perceived as intrusive, as they contradict the suspension system's design philosophy of visual brightness and inconspicuousness. In particular, in suspension structures requiring numerous suspension ropes and a corresponding number of ceiling-side fixing points, the plastering arrangement of multiple receiving components or a single but correspondingly large receiving component creates unfavorable aesthetic effects.

[0004] Alternatively, a mounting system is known in which the receiving component on the ceiling side is constructed as a plaster insert element or a portion thereof. For example, such a plaster insert element is arranged in a recess in a plaster ceiling and then fastened flush with the surface by applying plaster material, thus preventing the component from protruding from the ceiling. Although the receiving component is arranged flush with the ceiling and therefore significantly improved aesthetically compared to plaster fittings, it is still visible. However, it is desirable for the suspension device to emerge directly from the room ceiling, making the receiving component completely invisible. Summary of the Invention

[0005] Therefore, the object of the present invention is, for example, to improve the type of suspension device mentioned at the beginning, such that the suspension device meets the highest aesthetic requirements, and only the suspension components, such as the suspension ropes, are visible.

[0006] To address this issue, the present invention proposes a suspension device of the type mentioned at the beginning, wherein the ceiling-side receiving member is constructed as a screw-in member that can be recessed into the ceiling. This screw-in member has a downwardly opening receiving portion, and the suspension device has a fixing section that can be inserted into the receiving portion from below. Since the ceiling-side receiving member is constructed as a screw-in member that can be recessed into the ceiling, the screw-in member can be secured to the ceiling through a simple screwing process, and screwed in to such an extent that the screw-in member is recessed into the ceiling, i.e., recessed relative to the room-side surface of the ceiling. The hollow space created by the recess can be filled with plaster material, thereby achieving a flush finish with the ceiling. The plaster material is applied around the suspension device hanging from the receiving member, leaving a hole in the plaster material whose size is adapted to the suspension device. Viewed from below, only the suspension device emerging from the hole is visible.

[0007] In order to enable it to be screwed into the ceiling, the screw-in component preferably has an external, at least segmented, spiral structure that causes the screw-in component to penetrate into the ceiling in the direction of the rotation axis when screwed in about the rotation axis.

[0008] Because the ceiling-side receiving component has a downwardly opening receiving portion, the fixing section of the suspension device can be inserted into and fixed therein into the receiving component already installed in the ceiling. Therefore, even before the suspension device is installed, the ceiling-side receiving component can be screwed into the ceiling using a screw-in tool acting from below, without being negatively affected by the suspension device. Preferably, the ceiling-side receiving component has a tool receiving portion, such as an internal hexagonal portion, a Phillips head, or the like, at its downward-pointing end face for form-fitting engagement of the screw-in tool.

[0009] In order to fix the fixing section in the receiving part of the receiving component on the ceiling side, according to a preferred embodiment, the receiving part and the fixing section are arranged to have a connecting device that interacts with each other.

[0010] The connecting device can be preferably configured to establish a threaded connection, a magnetic connection, or a material mating connection.

[0011] For constructing a threaded connection, the connecting device of the screw-in component preferably has a blind hole in the receiving portion with internal threads. In this case, the fixing section of the suspension device has a corresponding external thread that can be screwed into the internal thread of the screw-in component from below. The threaded connection may preferably be provided with a chemical thread locking portion in crystalline form, which liquefies upon screwing in and cures into an adhesive after screwing in to construct the chemical thread locking portion.

[0012] For example, a suitable adhesive can be used to achieve a material fit connection between the fixing section and the receiving component on the ceiling side.

[0013] Alternatively, a locking connection can be provided, in which a spring-loaded component can be snapped into a locking position, in which the fixing section of the suspension device is held in the receiving portion of the receiving component by form-fitting.

[0014] Alternatively, the receiving component on the ceiling side may have an expansion-internal component that deforms in a force-fit and shape-fit manner when driven in by, for example, a punch with a slotted opening by a pressure component of the suspension device.

[0015] In addition, the receiving part on the ceiling side can be equipped with a self-locking mechanism, where only the exposed end of the rope must be pushed into the self-locking mechanism from below, and the end of the rope is locked, for example, according to the self-locking principle.

[0016] To secure the suspension device to the receiving component on the ceiling side, a retaining component is required at its end, which is rigidly connected to the suspension device, for example, by embossing, welding, or brazing. The retaining component here limits the tensile load of the suspension device. The retaining component can be formed from the aforementioned fixing segment or can be a separate component from the fixing segment. In the first case, the retaining component is equipped with connecting devices for securing the retaining component to the receiving component on the ceiling side and can be configured, for example, as a cylindrical threaded segment with two opposing blind holes, a drive portion for screwing in, or a columnar portion with a bayonet groove on the cylindrical surface. In the second case, it is preferable that the retaining element arranged at the end of the suspension device forms a contact surface for the separate fixing segment of the suspension device. For example, the fixing segment can be configured as a threaded sleeve that can be threaded onto the suspension device (e.g., a suspension rope), and the retaining component, along with the suspension device and the load suspended thereon, is supported on the threaded sleeve via the aforementioned contact surface.

[0017] The receiving component on the ceiling side can be adapted to the corresponding ceiling structure and can be constructed differently, for example, for screwing into a hollow ceiling than for screwing into a solid ceiling.

[0018] In the case of a solid ceiling, the screw-in component is preferably constructed as a threaded part with external threads for screwing into the ceiling or into an expansion tube arranged in the ceiling. In particular, the screw-in component can be constructed as a pin threaded part, which has a receiving portion for a suspension device in a preferably unthreaded end region. The end region here has an outer diameter substantially the same as the outer diameter of the threaded part shank with external threads, so that the pin threaded part does not have a widened threaded head. This results in the screw-in component sinking into the ceiling upon screwing in. After the screw-in component sinks in, the suspension device is secured in the receiving portion of the screw-in component, and then scraping is performed around the suspension device, so that visually only the suspension device, such as a suspension rope, protruding from the ceiling is visible. For this purpose, the screw-in component can have an undercut at the end, so that the scraping material fits into the shape of the ceiling.

[0019] In the case of hollow ceilings (such as suspended plaster ceilings), the threaded fitting can be adapted such that the external thread is constructed at the threaded head of the fitting. For example, the external thread can be constructed as a self-tapping thread, which can anchor in the typically relatively soft laminated ceiling material when screwed into the ceiling. The external thread can be coordinated with the ceiling material in its shape and pitch, and is preferably constructed similarly to the threads of dry-structure threaded fittings for plaster or similarly to the threads of wood threaded fittings. In the case where the external thread is cylindrical, it can have at least one notch for receiving ceiling material, which gathers into the ceiling panel as the thread is driven in.

[0020] To screw the threaded component into the laminated ceiling, it is preferable to machine the threaded component drive portion, such as a TORX T40 drive portion, into the threaded component head in a centered manner. Here, a blind thread can penetrate deeper into the threaded component head than the threaded component drive portion, and this blind thread forms a receiving portion for the fixing section of the suspension device.

[0021] The height of the threaded part head is preferably coordinated with the thickness of the sandwich ceiling panel, and in particular, it is chosen to be slightly smaller than the panel thickness.

[0022] To achieve the attachment and retention of the screw-in component within the sandwich ceiling, a preferred improvement involves screwing a beveled anchor (Kippanker) onto the threaded rod of the threaded component, which has external threads. The threaded rod here has a diameter significantly smaller than that of the threaded head. The beveled anchor is configured to be inserted into the hollow space behind the sandwich ceiling so as to engage the sandwich ceiling from the rear, in the area surrounding the drilled hole and thus appear to be engaged from the rear. To enable the anchor to be introduced into the hollow space through the drilled hole, the anchor is implemented as a beveled anchor, as is known per se. After being introduced into the hollow space, the beveled anchor is pivoted 90° relative to the threaded rod. Thereafter, the beveled anchor, secured to the threaded rod by a threaded connection, is screwed onto the back side of the sandwich ceiling by rotating the threaded component until it is fully tightened.

[0023] An advantageous embodiment is configured such that the external threads constructed at the head of the threaded component and the external threads constructed at the shank of the threaded component have the same pitch. Upon rotation of the threaded component, this simultaneously causes the aforementioned fixed tension of the inclined anchor and causes the head of the threaded component to screw into the laminated ceiling. Specifically, the assembly is performed such that the threaded component is first rotated to such an extent that the inclined anchor rests against the back side of the laminated ceiling, and then further rotated or driven, preferably by means of an electric hand tool, such as a battery-powered screwdriver with a slip clutch, so that the external threads constructed at the head of the threaded component themselves are screwed into and connected to the ceiling panel. Simultaneously, the inclined anchor is "tensioned".

[0024] The inclined anchor is preferably constructed as a U-shaped profile, thus requiring less space for drilling through the sandwich ceiling when the inclined anchor is abutting against the threaded rod. This construction is preferably such that the threaded rod, when abutting against the inclined anchor, is positioned between the legs of the U-shaped portion of the inclined anchor.

[0025] Alternatively, other profiles besides the U-shaped profile can be used, which are pulled to the ceiling panel by being screwed into the hollow space of the ceiling. Alternatively, other tensioning devices can be used instead of inclined anchors, such as structures that unfold or expand when the threaded part is rotated.

[0026] Alternatively, the rope suspension structure of the present invention can also be used to anchor inclined or horizontally tensioned ropes to the ceiling, walls, floor, or space-dividing elements of a room. Furthermore, it is conceivable to use the anchoring system according to the present invention for anchoring vertically tensioned ropes, such as ropes used as fall protection for railings. Fine threaded rods or bars with threaded ends can also be fixed to the ceiling, walls, or floor in this manner.

[0027] The room ceiling according to the invention includes at least one suspension device according to the invention as described above, and is characterized in that the receiving part and the fixing section on the ceiling side are completely recessed into the room ceiling. This means that, except for the suspension device, all parts of the suspension device according to the invention are completely recessed into and thus received within the room ceiling. Except for the suspension device, all parts of the suspension device according to the invention are located in the plane of the ceiling in this way and can be completely covered by plaster material in this manner. Attached Figure Description

[0028] The invention will now be explained in more detail with reference to the embodiments shown in the accompanying drawings. Figure 1 Showing a threaded component for a solid ceiling as part of a suspension system. Figure 2 Show Figure 1 A view of the head of the threaded part. Figure 3 The basis for showing the state of being screwed into the ceiling. Figure 1 Threaded parts, Figure 4 Show Figure 3 Enlarged image, Figure 5 The threaded parts for the hollow ceiling are shown during the assembly process. Figure 6 The figure shows the assembly state according to Figure 5 Threaded parts, Figure 7 A detailed view of the suspension rope with a fixed section is shown. Figure 8 The figure shows the assembly state according to Figure 7 A view of the suspension rope. Figure 9 An alternative securing method is shown, whereby the suspension rope is held in the receiving component on the ceiling side prior to assembly, and Figure 10 The figure shows the assembly state according to Figure 9 The implementation plan. Detailed Implementation

[0029] Figure 1 A screw-in component on the ceiling side is shown in the form of a pin-threaded member 1, which has a threaded shank 2 and an unthreaded end section 3. The end section 3 includes a downwardly opening receiving portion 4, which is implemented as a blind hole with internal threads. Furthermore, a threaded drive portion 5 is centrally machined in the end section 3, for example, as shown in... Figure 2 The TORX implementation shown.

[0030] exist Figure 3In the diagram, the lower surface of the room's ceiling is marked 6, where a drilled hole 7 is inserted into the solid ceiling. An expansion tube 7 is arranged within the drilled hole 7, recessed relative to the ceiling surface 6. A threaded pin 1 is screwed into the expansion tube, more precisely, screwed into the expansion tube to such an extent that the threaded pin also has an offset portion 9 relative to the ceiling surface. Furthermore, in... Figure 3 As can be seen, the suspension rope 10 is fixed in the receiving part 4 by means of the fixing section 12.

[0031] According to Figure 4 As can be seen in the detailed illustration, the fixed section 12 is constructed as a threaded sleeve, which is pushed onto the suspension rope 10 and the external thread of the threaded sleeve is screwed into the internal thread of the blind hole 4. The suspension rope has a rigidly mounted retaining element 11 at its end, which is supported from above on the fixed section 12, i.e., the threaded sleeve. The free space formed by the offset section 9 can be filled with plaster material so that only the suspension rope 10 emerging from the ceiling can be seen from below.

[0032] Figure 5 and Figure 6 An embodiment of a screw-in component for a hollow ceiling 13 is shown. The screw-in component includes a threaded member 14 having a threaded head 15 and a threaded shank 16. The threaded head 15 is configured with external threads, which are screwed into a drilled hole 17 constructed into the ceiling 13 during assembly. The threaded shank 16 also has external threads, and a cylinder 18 is screwed onto these external threads. The cylinder is configured as a rotating support for a tilting anchor 19. Accordingly, the tilting anchor 19 can be driven from the ceiling 13 according to arrow 20. Figure 5 The position shown, which is attached to the threaded rod 16, pivots to Figure 6 In the position shown. The inclined anchor 19 is preferably configured in a U-shape in cross-section, so that in Figure 5 In the position of the inclined anchor 19 shown, the threaded rod 16 is positioned between the two legs of the U-shape.

[0033] The threaded rod 16 and the inclined anchor 19 are introduced together through the drilled hole 17 into the hollow space behind the ceiling, as... Figure 5As shown in the diagram. After the tilting anchor is pivoted 90°, the threaded part 14 rotates in the screwing direction, for example by engaging with the internal hexagonal portion 22, thereby pulling the tilting anchor 19 toward the back side of the ceiling 13 corresponding to arrow 21, while the threaded head 15 has not yet penetrated into the drill hole 17. Once the tilting anchor 19 is against the back side of the ceiling 13, further screwing in the threaded part 14 causes the threaded head 15 to be pulled toward and screwed into the drill hole 17, wherein the external thread of the threaded head 15 and the external thread of the threaded shank 19 have the same pitch. The threaded head 15 is fastened in the ceiling in such a way that, for example, according to Figure 1-4 In the proposed implementation, an offset portion 9 can be provided so that the threaded head can be covered with plaster material when screwed in. However, before plastering, the suspension rope 10 can be secured to the receiving portion constructed in the threaded head 15 by means of the fixing section 12, which allows for... Figure 1-4 It is done in the same way as explained.

[0034] exist Figure 7 and Figure 8 The suspension rope 10 is shown separately. The suspension rope 10 has a retaining element 11 at its end, which is rigidly mounted at the suspension rope, for example by press fitting, welding, brazing, or similar methods. Below the retaining element is a threaded sleeve 12, which is screwed into the internal thread of a blind hole constructed in the threaded head 23. To facilitate the screwing process, the threaded sleeve may have a threaded drive portion on its end side, i.e., its lower side. Similar to... Figure 5 and Figure 6 In this configuration, the threaded head 23, together with the threaded shank, may be part of the threaded component, or alternatively, it may constitute the screw-in component according to the invention itself. In the latter case, the combined action of the external thread of the screw-in component 23 and the drilled hole in the ceiling alone provides the required retaining force.

[0035] According to Figure 9 and Figure 10 In this embodiment, the screw-in component is also formed only by the threaded head-shaped component 24. The suspension rope 10 is secured here by press-fit between the fixing components at the end of the rope 10, which are configured as compression components 25, and which deform the expansion-internal component 26 by force and form fit when driven in by, for example, a slit punch.

Claims

1. A suspension device for suspending an object from the ceiling of a room, the suspension device comprising a receiving member on the ceiling side and a suspension device (10) for fixing to the receiving member, characterized in that, The receiving component on the ceiling side is configured as a screw-in component (14) that can be recessed into the ceiling. The screw-in component has a downwardly opening receiving portion, and the suspension device (10) has a fixing section that can be introduced into the receiving portion from below. The screw-in component is configured as a threaded part (14) with external threads for screwing into the room ceiling (13) or into an expansion tube arranged in the room ceiling (13). The external threads are formed at the threaded head (15) of the threaded part (14), and an inclined anchor (19) is screwed onto the threaded rod (16) of the threaded part (14) with external threads. The external threads formed at the threaded head (15) and the external threads formed at the threaded rod (16) have the same pitch.

2. The suspension device according to claim 1, characterized in that, The receiving part and the fixing section have connecting devices that work together.

3. The suspension device according to claim 2, characterized in that, The connecting device is configured to establish threaded connections, magnetic connections, or material mating connections.

4. The suspension device according to claim 2, characterized in that, The suspension device (10) has a retaining element at its end, the retaining element being configured as a contact surface for the connecting device or fixing segment of the suspension device (10).

5. The suspension device according to claim 2, characterized in that, The connecting device of the screw-in component (14) has a blind hole in the receiving part with an internal thread.

6. A screw-in member (14) having a downwardly opening receiving portion, the screw-in member being used in a suspension device according to any one of claims 1 to 5, wherein, The screw-in component is configured to sink into the ceiling and has a downwardly open receiving portion, wherein the screw-in component is configured as a threaded part (14) with external threads for screwing into the room ceiling (13) or into an expansion tube arranged in the room ceiling, wherein the external threads are formed at the threaded head (15) of the threaded part (14), and wherein an inclined anchor (19) is screwed onto the threaded rod (16) of the threaded part (14) with external threads, wherein the external threads formed at the threaded head (15) and the external threads formed at the threaded rod (16) have the same pitch.

7. A room ceiling, said room ceiling comprising at least one suspension device according to any one of claims 1 to 5, characterized in that, The receiving component on the ceiling side and the fixing section are completely recessed into the room ceiling.

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