EP3299531A1 - Cover plate of a suspended ceiling with toolless operable locking element - Google Patents

Abstract

Sub-ceiling consisting of individual, rectangular or square grid-like laid ceiling panels (1, 2) which are fastened to a bare ceiling or other support structure (13) without tools and on one side of the mounting level respectively locking hooks (3, 4, 23) are arranged, which are latched with arranged on the opposite mounting plane locking plates (10), wherein in the locking plate (10) a cantilevered, resilient support rod (11) is fixed, the free resilient end (22) engages over a plate-side locking slot (9) through which a hook head (8) of the locking hook (3, 4, 23) can be inserted therethrough and with the free resilient end (22) of the support rod (11) can be latched.

Description

The invention relates to a lower plate, which consists of individual, grid-like juxtaposed ceiling tiles, which are fastened by means of locking hooks on a raw ceiling according to the preamble of patent claim 1.

The invention is based on a false ceiling, the ceiling panels are fastened by means of locking elements to a support structure. A locking element according to the invention consists of a locking plate on the one fastening plane which cooperates with a locking hook on the other fastening plane.

With the subject of DE 202 09 097 U1 is a sub-ceiling with individual juxtaposed ceiling panels become known in which the individual ceiling panels have frontal and slot-shaped recesses in which mounting bolts pivotally engage, which are attached to the support structure. Disadvantage of this arrangement is that when removing the ceiling panels, a vertical lifting and a horizontal travel are necessary, so that the mounting of the ceiling plate assembly is difficult. The need to arrange a horizontal travel does not allow the slot width between adjacent sub-panels to be minimized. This leads to an ugly appearance of the false ceiling.

To avoid such adverse operation of the ceiling panels during removal and removal of a support structure, sees the AT 0 10 059 U1 a tool-free installation in such a way that spring-loaded, frontally arranged latch engage in associated recesses of a support structure. The operation of the bolt must, however, with a cable with a hand-operated hook, which protrudes from the ceiling plate and must be operated by hand. But there is the disadvantage that there is a risk of injury and the protruding hooks create an unsightly aesthetic impression.

Moreover, a cable actuation of the spring-loaded latch is associated with high assembly costs and high production costs and otherwise not reliable.

The DE 20 2013 000 340 U1 describes a ceiling construction of a false ceiling, in which the ceiling panels can be opened and removed without tools.

The actuation of spring-loaded pins takes place by the engagement of frontal folds of ceiling panels and associated control openings on the bolt-side end of such a spring-loaded pin. This has the disadvantage that the operation of such a spring-loaded pin or bolt is difficult, because the control surfaces must be arranged on the front-side support structure, which may be bent or not accurate, whereby an operation of the spring-loaded bolt is difficult to carry out. This arrangement also does not operate reliable.

The DE 202 12 060 U1 describes a false ceiling with self-folding elements, the ceiling panels are held with spring-loaded index balls. Such an arrangement is not high-load transmitting and there is a risk that in case of shock or higher loads, the respective ceiling panel drops.

The invention is therefore based on the object, a ceiling plate with a tool-actuated locking element and a usable for the ceiling plate locking element so that Even with the transmission of high loads a tool-free operation of the locking element is given.

To solve the problem, the invention is characterized by the technical teaching of claim 1.

The invention has recognized that the load of the ceiling plate can be accommodated in the direction of the locking hook by a spring-loaded support bar clamped on one side in the locking plate. Accordingly, the free resilient end of the support rod forms a traglastaufnehmende connection with the locking hook.

This results in a particularly simple, but hochlastaufnehmende locking connection between the support rod and the locking hook. Because the support rod is resiliently mounted on one side of the locking plate and the free resilient end makes the support connection with the engaging there Verrieglungshaken, a tool-free operation is possible because the Verrieglungshaken itself formed as a tool for the preparation and the resolution of the locking connection between the support rod and the locking hook is.

Feature of the invention is that the locking element is designed as a locking plate, which is arranged either on the underside of the support structure or on the upper side of a ceiling plate on or in which a cantilevered, resilient support rod is fixed, the free resilient end of a plate-side locking slot in engages over the locking plate, through which a hook head of the locking hook can be inserted and latched to the free resilient end of the support rod.

On the hook head of the locking hook one or more control surfaces are arranged, which in a relative longitudinal movement between bring the locking hook and the locking plate, the free resilient end of the support rod out of engagement with the locking hole in the locking plate and thus from the locking engagement with the locking hook.

With the given technical teaching, there is the advantage that with the locking hook itself and its hook head as a tool actuation of the trained as a support rod spring bar can be performed in the locking plate. That is, when the ceiling panel is moved toward the support structure, the hook head of the lock hook moves relative to the lock slot in the lock plate, and thus the control surfaces on the lock hook engage the free resilient end of the support bar so as to spring out of the area of the support bar Locking slot is displaced, and thus the ceiling plate is free from its locking with the locking hook and can be removed from the support structure.

The invention thus describes a tool-free assembly and disassembly of ceiling panels on a supporting structure, because the locking hook itself forms the tool.

For the sake of simpler description, it is assumed that the locking plates forming part of the locking elements are fastened to the cover plates of the false ceiling and the oppositely arranged locking hooks are fastened to the supporting structure.

However, the invention also claims the reverse case in which the locking hooks are attached to the ceiling panels of the false ceiling and the oppositely disposed locking plates are secured to the support structure.

Incidentally, the invention is not limited to the arrangement of ceiling panels of a false ceiling on a building-side support structure. In another embodiment, it is provided that the ceiling panels are designed as wall panels and on a wall-side support structure are detachably and without tools fastened.

For the sake of simplicity of description, in the following description, the detachable attachment of ceiling panels to a building-side support structure will be described, although the invention is not limited thereto.

In a preferred embodiment, the locking plate side support rod is formed as a cantilevered, spring-loaded spring steel wire, which preferably consists of a round material. The invention is not limited thereto. Instead of a spring steel round material, any other desired profile shape can be selected for the resilient support rod, in particular an oval profile, a rectangular or square profile or any other flat profile shape.

Likewise, it is not necessary solution to manufacture the support rod made of a spring steel material. Also, a plastic material or a plastic-metal composite material or the like may be used.

Important in the invention is that the support rod, which engages over the locking slot of the locking plate is clamped on one side with its free resilient end and thus lying opposite forms a free resilient end, the load of the ceiling at this point in the direction of the building side Supporting structure transfers.

This results in a particularly high load-transmitting connection, because the support rod consists of a particularly abrasion-resistant, high load-bearing material and it can be dimensioned according to its diameter in any way, so that ceiling panels are added with weights at the attachment point of, for example, more than 40 kg can.

Such fastening forces can be transmitted in the range between 20 to 60 kg per mounting plate and per support rod readily on the building-side support structure.

The invention thus provides as a locking plate before a special metal construction, which is particularly small dimensions and is flat.

Due to the fact that it is preferably a round profiled support rod, the diameter of the support rod determines the minimized height of the locking plate.

The locking plate may be multi-layered so that the various recesses arranged in the locking plate result from the layer structure of different composite layers.

In another embodiment, the locking plate can also consist of a single piece, in which case the corresponding openings in the locking plate are achieved by mechanical processing.

The low height results from the low plate-shaped structure of the locking plate, which is associated with the advantage that only a small path for mounting and dismounting the ceiling plate is necessary, and the travel is essentially determined by the control and locking surfaces on the locking hook.

With the formation of the locking hook and the locking plate, there is now the advantage that no lateral travels during installation or removal of ceiling panels on a support structure are required, but these are snapped perpendicular to the support structure directly to the support structure.

It is immaterial whether the locking hooks according to the invention are fastened to the building-side support structure, and the locking plates according to the invention are attached to the ceiling slabs or vice versa.

The other embodiment provides that the locking hooks are arranged on the ceiling panels and the associated locking plates are arranged on the supporting structure.

The invention also provides a simple locking plate in which only a single support rod is resiliently clamped on one side.

In a further embodiment, however, the invention also provides a doubling of such a locking plate, so that with respect to a central transverse line a symmetrical structure of a double locking plate thus formed is present. In this case, two support rods are mounted against each other on the locking element, and the two clamping points of the support rods are each opposite each other.

The locking plate can therefore also be designed as a continuous part doubled.

In a further development of the invention it is provided that in a locking plate two mutually parallel support rods are arranged, so that the locking plate can not only be constructed mirror-image with respect to a transverse center axis, but also can be mirrored with respect to a longitudinal center axis.

In the preferred embodiment, it is provided that the support rod is designed as a cantilevered bending beam, and the free resilient end engages or overlaps the locking slot, wherein the hook head engages through the locking slot and thereby actuates the support rod.

Instead of a cantilevered flexible support rod and a double-ended clamped support rod can be used, the center region is resilient and is suitable for locking with the locking hook. Such a support rod clamped at both ends is comparable to a piano string, which can be resiliently deflected between the two Einspannspannstellen in its central region and thus also provide the latching connection according to the invention with the locking hook.

In another embodiment of the invention, it may be provided that instead of the cantilevered resilient support rod in the region of the locking slot a spring-loaded slider is present, which is spring loaded on the locking slot left and right, so as also when engaging the control surfaces of a locking hook with the Slider surfaces of the spring-loaded slide to achieve a Hochlastübertragende suspension of the ceiling plate to a support structure.

In a preferred first embodiment, the locking hook is designed as a simple locking hook, which means that it is only suitable for suspending the ceiling plate on the supporting structure.

In a further development of such a locking hook, however, it may be provided that the locking hook is additionally designed as a rotary or pivot bearing, which therefore serves both to lock with the support rod in the locking plate, but also offers the possibility, the cover plate recorded there in one Swivel bearing of the locking hook pivotally support.

The advantage of this measure is that it is no longer necessary to create a revision opening in the lower ceiling, completely remove the ceiling panel, but it is sufficient to press the ceiling panel at a transverse line against the support structure, whereby the locking hook out of engagement with the support rod in the Locking plate comes, and then the pivot bearing on the locking hook comes into operation, which allows folding of the ceiling plate in a horizontal pivot axis on this locking hook, without the need for horizontal displacement is given.

The locking plate is preferably made of a metal material. The invention is not limited thereto. It can also consist of a plastic material or a plastic-metal composite.

The locking hooks are preferably made of a steel sheet to transmit the required high loads. However, they can also be made of a different material, such as plastic, with lower fire protection requirements and lower loads.

Instead of a steel material, an aluminum alloy can also be used.

The subject of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with each other.

All information and features disclosed in the documents, including the abstract, in particular the spatial design shown in the drawings, are claimed to be essential to the invention insofar as they are novel individually or in combination with respect to the prior art.

As far as individual items are referred to as "essential to the invention" or "important", this does not mean that these items necessarily have to form the subject of an independent claim. This is determined solely by the current version of the independent claim.

In the following the invention will be explained in more detail with reference to drawings showing only one embodiment. Here are from the drawings and their description further features essential to the invention and advantages of the invention.

• Figur 1: perspektivische Ansicht der Tragkonstruktion in der Ansicht von oben
• Figur 2: ein Halbschnitt durch eine Anordnung von Deckenplatten, die an einer Tragkonstruktion befestigt sind, wobei die linke Anordnung im Befestigungszustand und die rechte Anordnung im Montagezustand dargestellt ist
• Figur 3: die gleiche Darstellung wie Figur 2, wobei die rechte Deckenplatte in einem fortschreitenden Montagezustand dargestellt ist
• Figur 4: die gleiche Darstellung wie Figuren 2 und 3, wobei die rechte Deckenplatte in ihrem endgültigen Montagezustand dargestellt ist
• Figur 5: die Darstellung des Deckenaufbaus mit der Demontage der rechten Deckenplatte in einer ersten Arbeitsstellung
• Figur 6: die gleiche Darstellung wie vor mit der Demontage der rechten Deckenplatte in einem weiteren Arbeitszustand
• Figur 7: die kinematische Umkehrung zu den vorherigen Darstellungen, bei denen auf der Tragkonstruktion der Verriegelungshaken angeordnet ist und die erfindungsgemäße Verriegelungsplatte auf der Deckenplatte befestigt ist, in einem Zustand kurz vor der Befestigung der Deckenplatte an dem tragkonstruktionsseitigen Verriegelungshaken
• Figur 8: ein gegenüber Figur 7 fortgeschrittener Arbeitszustand
• Figur 9: der endgültige Montagezustand der Deckenplatte nach Figuren 7und 8
• Figur 10: die Demontage der Deckenplatte nach Figur 9
• Figur 11: der gegenüber Figur 10 fortgeschrittene Arbeitszustand
• Figur 12: die Draufsicht auf eine Deckenplatte in einer bevorzugten Ausgestaltung
• Figur 13: der Schnitt durch die Deckenplatte nach Figur 12
• Figur 14: die perspektivische Ansicht der Deckenplatte
• Figur 15: ein Detail der Befestigung der Verriegelungsplatten an der Deckenplatte
• Figur 16: ein weiteres Detail der Befestigung
• Figur 17: die Draufsicht auf eine bevorzugte Ausführungsform für die Verriegelungsplatte
• Figur 18: Schnitt durch die Verriegelungsplatte in Richtung der Darstellung E-E
• Figur 19: die Rückansicht der Verriegelungsplatte nach Figur 17
• Figur 20: Schnitt gemäß der Linie A-A
• Figur 21: Schnitt gemäß der Linie B-B
• Figur 22: Schnitt gemäß der Linie C-C
• Figur 23: Schnitt gemäß der Linie D-D
• Figur 24: eine weitere Ausführungsform einer Verriegelungsplatte gemäß dem Ausführungsbeispiel nach den Figuren 17 bis 23, jedoch in verdoppelter Ausführung
• Figur 25: die gleiche Darstellung wie Figur 24 mit einem Tragstab im entriegelten Zustand
• Figur 26: die Seitenansicht eines Verriegelungshakens in einer ersten Ausführungsform
• Figur 27: die Seitenansicht eines doppelten Verriegelungshakens mit zwei verschiedenen Ausführungen
• Figur 28: der Verriegelungshaken nach Figur 27 in perspektivischer Seitenansicht
• Figur 29: der gleiche Verriegelungshaken nach Figur 28 in einer weiteren Darstellung

Show it:

• FIG. 1 : perspective view of the supporting structure in top view
• FIG. 2 FIG. 2: a half-section through an arrangement of ceiling panels fixed to a support structure, showing the left-hand assembly in the fastened state and the right-hand assembly in the assembled state
• FIG. 3 : the same representation as FIG. 2 , wherein the right ceiling plate is shown in a progressive mounting state
• FIG. 4 : the same representation as Figures 2 and 3 , wherein the right ceiling plate is shown in its final mounting state
• FIG. 5 : the representation of the ceiling structure with the disassembly of the right ceiling plate in a first working position
• FIG. 6 : the same presentation as before with the disassembly of the right ceiling tile in another working condition
• FIG. 7 the kinematic reversal to the previous illustrations, in which the locking hook is arranged on the support structure and the locking plate according to the invention is mounted on the ceiling plate, in a state shortly before the attachment of the ceiling plate to the support structure-side locking hook
• FIG. 8 : one opposite FIG. 7 advanced working condition
• FIG. 9 : the final mounting condition of the ceiling panel after FIGS. 7 and 8
• FIG. 10 : disassembly of the ceiling plate FIG. 9
• FIG. 11 : the opposite FIG. 10 advanced working condition
• FIG. 12 : The top view of a ceiling plate in a preferred embodiment
• FIG. 13 : the section through the ceiling panel after FIG. 12
• FIG. 14 : the perspective view of the ceiling tile
• FIG. 15 : a detail of the fastening of the locking plates to the ceiling plate
• FIG. 16 : another detail of the attachment
• FIG. 17 : The top view of a preferred embodiment of the locking plate
• FIG. 18 : Section through the locking plate in the direction of the representation EE
• FIG. 19 : the rear view of the locking plate after FIG. 17
• FIG. 20 : Section according to the line AA
• FIG. 21 : Section according to the line BB
• FIG. 22 : Section according to the line CC
• FIG. 23 : Section according to the line DD
• FIG. 24 a further embodiment of a locking plate according to the embodiment of the FIGS. 17 to 23 , but in duplicate
• FIG. 25 : the same representation as FIG. 24 with a support rod in the unlocked state
• FIG. 26 : The side view of a locking hook in a first embodiment
• FIG. 27 : The side view of a double locking hook with two different designs
• FIG. 28 : the locking hook behind FIG. 27 in perspective side view
• FIG. 29 : the same locking hook after FIG. 28 in another illustration

FIG. 1 shows the top view of the raw ceiling on a support structure 13, which consists essentially of longitudinally extending longitudinal band grid profiles 6, are connected to the transverse direction transverse band grid profiles 5.

On the support structure 13, the locking plates 10 according to the invention according to the embodiment according to Figures 24 and 25 attached so that on each side of the locking plate 10, an inventive support rod 11 is arranged, whose function will be described later.

The ceiling panels 1, 2 according to the invention are applied at a distance to the contact surface 7 on the underside of the support structure 13 and the later to be described ceiling plate-side locking hooks 3, 4, 23 engage in the double-sided on both sides of the building-side locking plates 10 arranged locking slots 9 a.

The half-cut in FIG. 2 shows the section through a left side already fixed ceiling plate 1 and right side still to be fixed ceiling plate. 2

Each ceiling plate 1, 2 is associated with a number of locking hooks 3, 4, which are arranged depending on the load transmission at a mutual distance. The hook head 8 of the respective locking hook 3, 4 engages in each case in an associated locking opening 12 of the building side secured to the support structure 13 Verrieglungsplatten 10 and locked there with the locking opening 12 cross resilient end 22 of a support rod eleventh

The FIG. 2 shows on the left side the assembled state of the ceiling plate 1 with the locking hook 3 on the cross band grid profile 5, wherein the locking plate 10 is releasably latched onto the cross band grid profile.

Of course, it can also be provided that the locking plate 10 is integrated in the transverse band grid profile 5. It can then be provided appropriate exemptions in the transverse band grid profile 5 to make the locking plate 10 flush with the top of the transverse band grid profile 5.

In another embodiment of the invention, it may also be provided that the locking plate 10 is integrated in the longitudinal band-grid profile 6. The locking plate can either be applied or fixed on the surface of the longitudinal band-grid profile 6 or be integrated in the profile of the longitudinal band-grid profile 6.

The FIG. 2 shows on the right side of the mounting position of a ceiling plate 2, which is guided in the direction of arrow 14 with its locking hook 4 against the support structure-side locking plate 10.

The locking hook 4 has at its upper end a hook head 8, which forms an obliquely directed locking slot 9.

In FIG. 2 is merely shown schematically that the free resilient end of a support rod 11, the locking hole 12 in the locking plate 10 passes through, and thus assumes a rest position.

Upon further movement of the ceiling plate 2 in the direction of arrow 14 of the hook head 8 engages according FIG. 3 in the locking hole 12, and presses with the inclined control surface, the free resilient end 22 of the support rod 11 to the side. The FIG. 3 shows just the engagement of the obliquely oriented control surface at the free resilient end 22 of the support rod eleventh

The FIG. 4 shows the final assembled state in that the free resilient end 22 of the support rod 11 again covers the locking hole 12, and in latching engagement with the longitudinal slot 34 of the hook head 8 (see FIG. 26 ), wherein the load is now absorbed by the support surface 32 in the hook head 8.

The FIG. 5 shows on the right side of the disassembly position, in which it can be seen that when the ceiling plate 2 is guided in the direction of arrow 14 against the support structure 13, then the hook head 8 of the locking hook 4 through the locking hole 12 is passed through and with its associated control surfaces the resilient end 22 of the support rod 11 displaced, namely until the free resilient end 22 behind left and right side stops 16 comes to rest.

The control surface which effects this is designated by the reference numeral 15.

The ceiling plate 2 can then in the direction of arrow 14 'at - arrested behind the stops 16 free end 22 of the support rod 11 - be removed, as in FIG. 6 is shown.

A re-assembly would be possible if the support rod 11 is brought out of engagement with its stop 16, and again covers the locking hole 12.

This can be done without tools either by using a finger of a free hand in a viewing port 26 (see FIG. 19 ) engages and brings the free end 22 out of engagement with the stop 16 by hand.

In another embodiment, it is provided that the stop 16 is designed as a rotatable screw bolt or as an eccentric bolt, which is rotatable so that it is designed to be adjustable in height. It can have a coarse thread, which makes it possible to perform a stroke adjustment with half a turn.

With the finger of a free hand can therefore be turned on the stop 16, which is then rotated to the bottom plane of the recess 27. Thus, the free end 22 of the support rod 11 is disengaged from the stop 16.

Of course, in another embodiment, the free end 22 of the support rod 11 can be brought out of engagement with the plate-side stop 16 with a small screwdriver or another rod-shaped tool.

The FIGS. 7 to 11 show the mechanical equivalent to the embodiments according to the FIGS. 2 to 6 where it can be seen that the locking hooks 3, 4 and 23 according to the invention are not fastened to the ceiling panels 1, 2, but to the underside of the support structure 13. In contrast to the aforementioned embodiment, two different types of locking hooks 3, 4 and 23 available.

The right locking hook 3, 4 is intended for easy locking of ceiling panels 1, 2, which can be pressed in the direction of arrow 14 in its mounting position from below, while the left locking hook 23 serves as a pivot and pivot bearing for the ceiling plate 1. In this way, it is not necessary solution to remove the ceiling plate 1 of the support structure 13, but by appropriate actuation of the ceiling plate, it can be pivoted in the region of the locking hook 23 about a horizontal axis so as to swing this ceiling plate of the support structure, but still engaged to leave with the locking hook 23.

For illustrative simplification reasons, the parts of FIGS. 7 to 11 only roughly with the corresponding reference numerals FIGS. 2 to 6 labeled, because all the same parts have the same functions and the same structure.

The FIG. 8 shows therefore a first step of a mounting position, where the hook head 8 of the locking hook 3 dips into the locking hole 12 and pushes with its control surface 15, the free end 22 of the support rod 11 aside, and behind a later to be described stop 16 brings to bear.

Thus, the locking opening 12 is free for the dipping of the hook head 8, the in FIG. 9 already completed. There, the hook head is already immersed through the locking hole 12 therethrough. About the spring tension of the free end 22, the free end 22 is back to its original position FIG. 9 swung back; and thus this support rod 11 receives the load transfer in the region of the locking plate 10.

The FIG. 10 again shows the disassembly position when the ceiling plate 2 is moved in the direction of arrow 14 'against the support structure, and the hook head 8 of the locking hook 3, 4 has brought with its control surface 15, the free end 22 of the support rod 11 to rest behind the stop 16.

The FIG. 11 shows the advanced disassembly state when the ceiling plate 2 has been completely removed from the locking hooks 3, 4.

All the same explanations also apply to the locking hook 23 shown on the left, which is based on the later FIG. 27 will be described in more detail.

It is noted that a disassembly of a pivotally formed ceiling plate by pressing the ceiling plate against the locking hook 23 is not necessary, but there is an initial shift in the horizontal direction and then following pivoting down.

The FIGS. 12 to 16 show an exemplary structure of a ceiling plate 1, 2, which consists of a sheet metal bending profile, which is approximately according to FIG. 13 C-shaped profiled, and consists of a bottom surface to which laterally each edging 18 join, which merge into each upwardly adjoining, mutually directed mounting leg 19.

In a ceiling plate according to Figures 12 and 14 with a length of, for example, 2000 mm and a width of 800 mm, the locking plates 10 according to the invention are load-transmitting at six different locations according to FIG. 14 arranged.

Instead of the arrangement of the locking plates 10 may - in accordance with the above description - at this point also locking hooks 3, 4 attached.

If it is a matter of making a ceiling plate swing-away, then the locking plates 23 would each be on one end side of a ceiling plate 2, 3 according to FIG. 14 attached.

The locking plates 10 are preferably formed from a metal material and have fastening holes 24, with which they are connected in a manner not shown with the circumferential mounting leg 19:

Instead of a screw fastening can be done any other attachment, such as riveting, gluing, crimping, welding or beading.

Each locking plate 10 preferably has mutually spaced apart and mutually parallel locking openings 12, which are spaced from respective viewing ports 26.

Based on FIGS. 17 to 23 the further structure is explained.

In a preferred embodiment of the invention, it is provided that the locking plate 10 consists of a layer structure of three mutually parallel and flat side interconnected plates 51, 52, 53.

On the base plate 51, a multiply profiled recess 27 is arranged at the rear, which has approximately a Y-shape. The recess 27 forms the release for the lateral bending of the free spring end 22 of the support rod 11 in a horizontal plane.

In the region of this recess, the free end 22 of the support rod 11 is bendable in, as for example in FIG. 19 is shown.

The clamped end of the support rod 11 is housed in a clamping groove 21 which is arranged in the intermediate space between the base plate 51 and the cover plate 53.

The intermediate plate 52 is recessed in its central region in order to form there the range of motion for the bending movement of the free end 22 of the support rod 11.

In the area of the cover plate 53 two adjacent viewing ports 26 are arranged to optically control the resilient abutment of the free end 22 behind stops 16, which are arranged in the region of the recess 27 and part of the base plate 51.

Below the viewing openings 26, the locking opening 12 is formed as an approximately rectangular locking, which extends through the locking plate 12 through the base plate 51, through the intermediate plate 52 and through the cover plate 53.

In the region of the cover plate 53, the recess 27 is arranged and still has a recess 29 which limits the movement of the free end 22 of the support rod 11 by means of conically widening guide surfaces 25.

The clamping point 20 at the lower end of the support rod 11 is formed by the superimposition of base plate 51 and cover plate 53 in the region of the clamping groove 21.

Left and right outside of the stops 16 close to exemptions 47, which are arranged in alignment with each other both in the area of the intermediate plate 52 and in the region of the cover plate 53.

In these exemptions enters the free bendable end 22 of the support rod 11 in the in FIG. 19 shown open position.

In the closed position - see FIG. 17 - Covering the support rod 11 with its free end 22, the locking opening 12 which is penetrated by the hook head 8 of the locking hook 3, 4, 23.

The FIG. 21 shows the section through the locking hole 12, while the FIG. 22 shows the section through the recess 29, and the FIG. 23 represents the section through the clamping end of the support rod 11 in the region of the clamping point 20.

Accordingly, the free resilient end 22 of the support rod 11 in the direction of arrow 30 and in the opposite direction spring-loaded pivoting and settles under spring force in the FIG. 19 shown position respectively on a left and right stop 16.

The stops 16 are formed symmetrically, with respect to the locking hole 12, because thus a ceiling plate 1, 2 can be suspended from one side and from the other side with its associated locking hooks 3, 4 in a locking plate 10.

The FIG. 24 shows in comparison to the aforementioned drawing figures 17 to 23 only a doubling of the locking plate 10, which thus consists of two mutually mirror-symmetrical parts, which are arranged with respect to a transverse line of symmetry 31 mirror-symmetrical to each other. The two parts are material integral with each other and form a continuous metal part. Thus, the same explanations apply to both locking plates 10, 10, as they are based on FIGS. 17 to 23 were given.

The same parts are provided with the same reference numerals.

Accordingly, the shows FIG. 25 also the functional position in the unlocked state at the upper locking plate 10, while the lower locking plate 10 is still in its normal position.

The FIG. 26 shows the top view of a locking hook 3, 4 with its hook head 8, where it can be seen that an incorporated on the hook head 8, obliquely extending longitudinal slot 34 is bounded on one side by the control surface 15, and it extends arcuately into a support surface 32, and is limited on the opposite side by a contact surface 37 which is formed approximately parallel to the inclination of the control surface 15.

At the free front end of the longitudinal slot 34 a fold 35 is arranged with an angled stop surface 36 to prevent unwanted disengagement of the there engaging support rod 11 in the attached state.

The outer surface of the hook head 8 is formed by a stop surface 33 whose inclination corresponds approximately to the inclination of the control surface 15. The stop surface 33 is used to pass through the locking hole 12 to bring the locking opening 12 overlapping support rod 11 out of engagement with the locking hole 12, and to transport the free end 22 of the support rod 11 behind the housing-fixed stop 16.

The opposite surface to the abutment surface 33 is angled and thus forms an insertion bevel to the abutment surface 33. This surface is accordingly formed as an insertion bevel 38, to which an angled guide surface 39 connects.

The insertion bevel 38 also serves to move the free resilient end 22 of the support rod to the opposite stop 16 in the housing of the locking plate 10th

In the drawing is still shown that the locking hooks 3, 4 can be material integral or separately connected to a base plate 45. In the illustrated embodiment, it is designed as a sheet metal bent part.

The FIG. 27 shows one opposite FIG. 26 modified embodiment in which the same explanations apply to the locking hooks 3, 4, as indicated above.

Only the left-side locking hook 23 has a different shape and does not provide for lifting a ceiling plate 1, 2 for the purpose of assembly or disassembly. Rather, here the support rod 11 engages with its free end 22 in an approximately horizontally oriented receiving slot 40, which merges at a radius surface 42 into a support leg 44, which forms the load transfer to the body of the locking hook 23.

At the free front end of the receiving slot 40 an upstanding fold 35 is provided which avoids accidental disengagement of the free end 22 of the support rod 11.

The bevel 35 is followed at an angle by an inclined surface 41, which is necessary for mounting the ceiling plate 1, 2. This inclined surface 41, in conjunction with the radius surface 42, the pivot bearing for pivoting the ceiling plate, not shown here.

It is an exemption to allow in this area the pivoting of the ceiling plate about a horizontal axis.

The hook head 28 is therefore shaped differently than the hook head 8, but performs the same functions.

The embodiment also shows that on a connecting base plate 45 both the one type of locking hooks 3, 4 and the other type of locking hooks 23 may be integrally fixed.

The upwardly extending from the receiving slot 40 support web 43 should be high load transfer to transfer the suspension loads on the body of the locking hook 23.

In the FIGS. 28 to 29 is the perspective view after FIG. 27 shown, where additionally shown that in the base plate 45, a transverse mounting hole 46 is provided as Anschraubbefestigung for the locking hook.

The embodiment according to the FIGS. 28 and 29 shows that two different locking hooks can be attached to a base plate 45. Of course, it is also possible to arrange on the base plate 45 only double-sided either the locking hooks 3, 4 or double-sided and the locking hooks 23.

The above description shows in the FIGS. 17 to 23 a layer structure of the locking plates of a total of three stacked plates 51-53 carrying different recesses. This is provided purely for manufacturing reasons, because it is particularly easy to make in the sheet material of each plate 51-53 associated recesses. The invention is not limited thereto. Instead of the arrangement of a layered locking plate 10 with the plates 51-53 can also a continuous, one-piece locking plate can be used, wherein the corresponding recesses are introduced in the material of the continuous locking plate by machining.

Instead of a machining processing, the recesses can be introduced by deep drawing, stamping, embossing or welding.

It is also possible to form the locking plate 10 as a plastic injection molded part and only the load-transferring support rod 11 made of a metal material.

The material of the sandwich panels 51-53 may be made of sheet metal or aluminum alloy.

The description of the invention shows that a tool-free assembly and disassembly is possible that high loads can be transmitted at a low height of a locking plate, and that the essential element, a cantilevered cantilevered support bar, for transmitting the loads in conjunction with latching in the locking plate locking hook. 3 , 4, 23 is provided.

This is relatively inexpensive to manufacture, because in conventional ceiling cassette constructions such a locking plate can be easily integrated.

Furthermore, the invention provides to remove the ceiling plate without any horizontal movement from the composite with other ceiling panels, so that the lowest possible joints between the ceiling panels may be present, and this leads to a visually beautiful, continuous ceiling construction that can not reach other, known constructions.

With the low height of the locking plate, the floor slabs can be minimized accordingly, without the room height is affected thereby, resulting in a significant reduction in construction costs.

drawing Legend

1

ceiling tile

2

ceiling tile

3

locking hook

4

locking hook

5

Cross Bandraster

6

Along Bandraster

7

contact surface

8th

hook head

9

locking slot

10

locking plate

11

bearing bar

12

locking opening

13

supporting structure

14

Arrow direction 14 '

15

control surface

16

attack

17

floor area

18

fold back

19

fastening leg

20

clamping

21

clamping groove

22

free end (of 11)

23

locking hook

24

mounting hole

25

guide surface

26

view port

27

recess

28

Hook head (from 23)

29

recess

30

arrow

31

line of symmetry

32

wing

33

stop surface

34

longitudinal slot

35

fold

36

stop surface

37

contact surface

38

chamfer

39

guide surface

40

receiving slot

41

sloping surface

42

radius surface

43

carrying web

44

supporting leg

45

baseplate

46

mounting hole

47

exemption

48

49

50

51

baseplate

52

intermediate plate

53

cover plate

54

Claims (16)

Sub-ceiling consisting of individual, rectangular or square grid-like laid ceiling panels (1, 2) which are fastened to a bare ceiling or other support structure (13) without tools and on one side of the mounting level respectively locking hooks (3, 4, 23) are arranged, which are latchable with arranged on the opposite mounting plane locking plates (10), characterized in that in the locking plate (10) is fixed on one side, resilient support rod (11) whose free resilient end (22) trag tragaufaufnehmende a connection with the locking hook ( 3, 4, 23). A false ceiling according to claim 1, characterized in that the free resilient end (22) of the support rod (11) engages over a plate-side locking slot (9) through which a hook head (8) of the locking hook (3, 4, 23) can be inserted and with the free resilient end (22) of the support rod (11) can be latched. A false ceiling according to claim 1 or 2, characterized in that on the hook head (8) of the locking hook (3, 4, 23) one or more control surfaces (15) are arranged, which at a relative longitudinal movement between the locking hook (3, 4, 23) and the locking plate (10) elastically resiliently pivot the free resilient end (22) of the support rod (11) out of the region of the locking opening and bring it out of the latching engagement with the locking hook (3, 4, 23). Suspended ceiling according to one of claims 1 to 3, characterized in that the latching and Entrastbewegung between the respective ceiling plate (1, 2) and the support structure (13) in a vertical plane to the longitudinal extension of the ceiling plate (1, 2) is directed. A false ceiling according to any one of claims 1 to 4, characterized in that the locking plate (10) is multilayered and that the various recesses (12, 25, 26, 27) in the locking plate (10) in the different, sandwich-like layers ( 51, 52, 53) of the locking plate are formed. A false ceiling according to any one of claims 1 to 5, characterized in that in a locking plate (10) more than a one-sided attached support rod (11) is attached. A false ceiling according to any one of claims 1 to 6, characterized in that the locking hook (23) forms a rotary or pivot bearing for the ceiling plate (1, 2) attached thereto. The false ceiling according to one of claims 1 to 7, characterized in that the locking hook (4) has at its upper end a hook head (8) which forms an obliquely directed locking slot (9) and in that the hook head (8) has an obliquely formed control surface (15 ) is formed to rest on the support rod (11). Suspended ceiling according to one of claims 1 to 8, characterized in that the free resilient end (22) of the support rod (11) in the deflected state in the region of both sides arranged plate-side stops (16) can be locked. A false ceiling according to any one of claims 1 to 9, characterized in that in the locking plate (10) two adjacent viewing openings (26) are arranged to the resilient contact of the free end (22) of the support rod (11) behind the stops (16) optically controlled, which are arranged in the region of the recess (27). A false ceiling according to any one of claims 1 to 10, characterized in that the movement play of the free end (22) of the support rod (11) by means of conically widening guide surfaces (25) on the locking plate (10) is limited. A false ceiling according to one of claims 1 to 11, characterized in that the locking plate (10) is doubled and consists of two mutually mirror-symmetrical parts, which are arranged with respect to a transverse line of symmetry (31) mirror-symmetrical to each other. A false ceiling according to any one of claims 1 to 12, characterized in that an obliquely extending longitudinal slot (34) incorporated on the hook head (8) is bounded on one side by the control surface (15), and curved into an airfoil (32). extends, and on the opposite side by a bearing surface (37) is limited, which is formed approximately parallel to the inclination of the control surface (15). A false ceiling according to claim 13, characterized in that at the free front end of the longitudinal slot (34) a fold (35) with an angled stop surface (36) is arranged to prevent unwanted disengagement of the there engaging support rod (11) in the mounting state. A false ceiling according to claim 14 or 15, characterized in that the outer surface of the hook head (8) by a stop surface (33) is formed, whose inclination corresponds approximately to the inclination of the control surface (15), wherein the stop surface (33) for passing through the locking opening (12) serves to the the locking bar (12) covering the support rod (11) out of engagement with the locking hole (12), and to transport the free end (22) of the support rod (11) behind the fixed housing stop (16). A false ceiling according to any one of claims 13 to 15, characterized in that the opposite surface to the stop surface (33) is angled as an insertion bevel (38) and forms an insertion bevel to the stop surface (33).

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