EP3268556B1 - Fastening element and fastening system for fastening composite plates, in particular for façade elements - Google Patents
Fastening element and fastening system for fastening composite plates, in particular for façade elements Download PDFInfo
- Publication number
- EP3268556B1 EP3268556B1 EP16712288.6A EP16712288A EP3268556B1 EP 3268556 B1 EP3268556 B1 EP 3268556B1 EP 16712288 A EP16712288 A EP 16712288A EP 3268556 B1 EP3268556 B1 EP 3268556B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base plate
- fastening
- retaining elements
- panel
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title claims description 32
- 239000002905 metal composite material Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- 230000007704 transition Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0801—Separate fastening elements
- E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
- E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
- E04F13/0816—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements the additional fastening elements extending into the back side of the covering elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0866—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of several layers, e.g. sandwich panels or layered panels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/12—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of metal or with an outer layer of metal or enameled metal
Definitions
- the invention relates to a fastener and a fastening system for plates, in particular composite panels, which are preferably to be fixed to the outside of buildings.
- Metal composite panels as typical examples of composite panels usually consist of a plastic core, which is planked on both sides with thin metal plates. Instead of the metal plates, another composite material harder than the core can be used in other composite plate systems. In particular, it is also conceivable to produce plates with a multilayer structure made of plastic. A problem with the attachment of such plates is that the connection between the plastic core and the surface-forming materials is often difficult. For attachment of such plates, it is therefore common to provide the plate with a through hole and then to screw. However, such fittings are not unproblematic, especially on the outside of buildings. In addition to the optical impairment is here in particular the lack of tightness of the outside to call, as at the screw head and through the through hole water can penetrate behind the composite plate.
- a fastener which consists of a base plate and a threaded pin.
- a holding element which in contrast to Base plate, which is circular in plan view, is elongated. The total length of the retaining element is greater than the diameter of the base plate.
- an undercut recess is introduced in the composite plate. The section which is open to the surface corresponds in its diameter substantially to the diameter of the base plate.
- the cutout has two opposite radial extensions, so that in this area the holding element can be used. By turning the retaining element it then engages behind at least the plate into which the cutout is made.
- a disadvantage of the described embodiment is that only in the region of the ends of the holding element, which protrude beyond the base plate, a power transmission from the fastening element to the composite plate is possible. Especially with composite materials where the connection between the cover plate and the plastic core is relatively poor, but this is problematic. The force is applied over a too small surface area. Deformation of the cover plate and possibly tearing off the plastic core is therefore possible. From the FR1 099 003 A a fastener is known in which a plurality of retaining elements are pressed radially apart when the fastener is mounted. However, the fastening element has a large height in relation to its diameter and is hardly usable in thin plates. It is therefore the object of the invention to provide an improved fastening solution.
- the fastening element according to claim 1 and the corresponding fastening system has a pin for attachment to a plate holder.
- a pin may for example be a threaded pin which is fixed to a base plate of the fastener.
- An attachment of the pin to the base plate can be done for example by welding.
- On the base plate a plurality of retaining elements can be fixed.
- the plurality of retaining elements is a distribution of the force with which the composite plate is fixed to a plate holder, such as a facade of a building, possible.
- the plurality of retaining elements can be distributed over the circumference of the base plate. The selective introduction of force in the composite plate can thus be prevented.
- the holding elements on a flat bearing area and a relative to this support area angled section.
- the angled section is oriented so that it is at planar concern of the support area of the Has retaining elements on the base plate of the pin for attachment points away.
- the angled area protrudes beyond the outer edge of the baseplate.
- holding elements which essentially correspond to a circle segment
- a transmission of force can take place over almost the entire circumference of, for example, a circular base plate.
- the surface is therefore considerably larger than the known fastening system.
- the plurality of retaining elements which allow, for example, a transmission of force over almost the entire circumference of the base plate, connected to each other via a plastically formable connection.
- a plastic moldable connection it is possible to connect only one of the holding elements fixed to the base plate. This considerably simplifies the assembly work.
- the region of the transition forms the plastically deformable connection in the region of the transition between the support region and the angled section of the holding elements by a web.
- the retaining elements By bending the retaining elements are not only pressed radially outward by the action of a tensile force on the pin, but also the support area held flat on the base plate.
- the connection between the fixedly secured to the base plate holding element and the adjacent holding elements thus serves only for mounting. Subsequently, the holding elements are fixed by the forces occurring in terms of their position anyway.
- FIG. 1 the overall system 1 for fastening a composite panel is shown.
- the composite plate 2 has in a known manner, for example, two directed towards the outer sides of metal plates which are interconnected by a plastic core.
- a cutout 10 is introduced.
- the cutout is, for example, in a plan view of the in the FIG. 1 left cover plate circular.
- the cutout 10 has an undercut and does not extend over the entire thickness of the composite plate 2.
- the cutout has the geometry of a truncated cone in the plate cross-section.
- a fastening element 3 is provided for fixing the composite plate 2 to a plate holder, for example metal profiles on an outer wall of a building.
- the fastening element 3 has a threaded pin 4.
- threaded pin 4 instead of the threaded pin 4, of course, other preferably pin-shaped elements are provided with which the frictional connection to the plate holder is possible.
- the illustrated threaded pin 4 is fixed to a base plate 5 of the fastener 3.
- the attachment is preferably by welding, so as to allow a mass production inexpensively.
- the diameter of the preferably substantially circular base plate 5 is chosen so that it is smaller than the opening diameter of the cutout 10 to the surface of the composite plate 2 out.
- On the base plate 5 are also distributed over the circumference of the base plate arranged, a plurality of holding elements 6, 6 'is provided. These holding elements 6, 6 'have a support region 7, 7', and a chamfered section 8, 8 '.
- the chamfered portion 8, 8 ' is angled relative to the support area 7, 7' preferably at 45 ° angle.
- the outwardly directed surface of the angled region 8, 8 'thus abuts against the wall of the cutout 10.
- FIG. 1 a solution is shown in which a plurality of holding elements 6, 6 'are connected to each other.
- the holding elements 6 to fix all holding elements 6, 6 'of the fastening element 3, only one of the holding elements 6 to be firmly connected to the base plate 5.
- this is realized by a screw.
- the one, firmly connected holding element 6 can be welded to the base plate 5, for example by spot welding.
- the holding element 6, which is screwed to the base plate 5, shows that the angle between the support area 7 and the angled portion 8 is just in one position, so that the chamfered area 8 projects beyond the base plate 5.
- the total height of the fastening element 3, that is to say the thickness of the base plate 5 plus the thickness of the bearing regions 7, 7 ', is selected such that its height corresponds to the milling depth of the cutout 10.
- the oriented in the direction of the free end of the pin 4 surface of the support areas 7, 7 ' is flush with the surface of the composite panel 2.
- FIG. 2 1 shows a plan view from the side of the threaded pin 4 on a total of three holding elements 6, 6 ', 6 "It can be seen that the holding element 6 is provided with a bore via which a screwing of the holding element 6 with the base plate 5 is possible
- a second holding element 6 ' is connected to the holding element 6, which is firmly fastened to the base plate 5.
- a web 9 serves for the connection, which in the region of the transition between the support region 7 and the angled section 8 of the holding element 6 and the support region 7 'and the angled section 8' of the second holding element 6 'is formed.
- the web 9 is plastically deformable FIG.
- the third retaining element 6 " is connected to the retaining element 6 via a second web 9 '.
- the third retaining element 6" is twisted so that it is erected in the direction of the free end of the threaded pin 4.
- the two upright ends of the holding element 6 'and of the holding element 6 "which are remote from the holding element 6 are then lowered into the cutout 10, so that the webs 9, 9' are plastically deformed the retaining elements 6 'and 6 "in the cutout can be done mounting the plate 2.
- FIG. 3 shows a plan view of a base plate 5 of the fastener 3.
- the threaded pin 4 by welding attached.
- a receptacle for the screw is also provided in the base plate 5 and designated 11.
- the thread 11 for receiving the screw is provided in a region of the base plate 5 with a first diameter.
- the base plate 5 On the opposite side, but over less than half of the circumference, the base plate 5 has a smaller radius. In this way, the insertion of the preassembled fastener 3 is facilitated in the cutout 10.
- a chamfer 12 or 12' is formed in the base plate 5.
- This chamfer 12, 12 ' runs so that the erected during pre-assembly holding elements 6' and 6 "can be pushed with their angled portions 8 ', 8" along this chamfer into the cutout 10.
- the bevel 12 or 12' does not extend to the area of the reduced diameter of the base plate 5 Bevel 12 and 12 'and the beginning of the reduced diameter portion of the base plate 5, a portion which in the assembled state by abutment at the transition between support area 7' and 7 "and the angled portion 8 'and 8" the holding elements 6' and press 6 "radially outward.
- FIG. 4 shows a plan view in which the preassembled fastener 3 is shown. A repeated explanation of the individual elements is omitted. The illustration is to illustrate the course of the chamfer 12 or 12 '. This begins at the ends seen in the circumferential direction of the fixedly mounted retaining element. 6
- FIG. 5 shows the preassembled fastener 3 in a perspective view. It can be seen that the ends of the second holding element 6 'and the third holding element 6 "seen in the circumferential direction are set up in the direction of the free end of the threaded pin 4. In this way, the preassembled fastening element 3 can be inserted into the cutout 10. After the fastener 3 is inserted, then in the FIG. 5 upwardly bent ends of the holding elements 6 'and 6 "bent down and thus the respective angled region 8' and 8" is pressed into the gap formed between the base plate 5 and the cutout 10.
- the holding members 6 'and 6 "are pushed down the more the angled portions 8' and 8", respectively, push outwardly as they abut the end of the chamfer 12,12 'and the outer periphery of the base plate, respectively 5 arrive in the area not reduced in radius.
- the holding elements 6' and 6" are connected only via the webs 9 with the fixedly attached to the base plate 5 holding member 6 , The webs 9, 9 'must be plastically deformable.
- the forming after the insertion of the fastener 3 can be done for example by means of a tool which is guided by the threaded pin 4. It can be provided, for example, a kind of stamp, which bears against the upright ends of the holding elements 6 and 6 'and is then guided in the direction of the base plate 5.
- FIG. 6 A comparison with the simplified embodiment of a fastener with three individual holding elements 6 'and 6 "is in the FIG. 6 shown in a plan view. It will be appreciated that, in contrast to the preferred embodiment described above, the retaining elements 6, 6 'and 6 "have no connection with each other and are inserted individually into the cutout after inserting the base plate with the threaded pin 4. Then they become bolted to the base plate.
- FIG. 7 is a section through such an arrangement shown. It can be seen that the holding elements 6, 6 'and 6 "although here also have an angled region, but this on the in the FIG. 7 shown lower side does not necessarily have to correspond to a cone. Due to the individual insertion of the holding elements, it is sufficient if they are displaceable in the radial direction of the base plate 5. The fixation takes place here by the individual screwing of the holding elements. Compared to the preferred embodiment described above, this has the disadvantage that the effort during assembly is considerably more complex and in particular a pre-assembly of the fasteners can not be done.
- FIG. 8 Finally, a further illustration is shown with a disc which a height offset between the surface of the holding elements 6 and 6 'and the surface of the Composite plate compensates. This was preceded by the figure. This shim has the same function as in relation to the embodiment of FIGS. 1 to 5 has already been explained.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connection Of Plates (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
Die Erfindung betrifft ein Befestigungselement sowie ein Befestigungssystem für Platten, insbesondere Platten aus Verbundwerkstoff, die vorzugsweise an Außenseiten von Gebäuden fixiert werden sollen.The invention relates to a fastener and a fastening system for plates, in particular composite panels, which are preferably to be fixed to the outside of buildings.
Obwohl die Erfindung in Bezug auf jegliche Art von Platte eingesetzt werden kann, so ist ihre Verwendung doch insbesondere im Zusammenhang mit Verbundplatten vorteilhaft. Die Erfindung wird daher in Bezug auf Verbundplatten erläutert, ohne jedoch die Allgemeingültigkeit auch für andere Platten zu beschränken.Although the invention may be used with respect to any type of panel, its use is particularly advantageous in the context of composite panels. The invention is therefore explained in relation to composite panels, but without limiting the generality for other panels.
Metallverbundplatten als typische Beispiele für Verbundplatten bestehen in der Regel aus einem Kunststoffkern, der beidseitig mit dünnen Metallplatten beplankt ist. Anstelle der Metallplatten kann in anderen Verbundplattensystemen auch ein anderer gegenüber dem Kern härterer Werkstoff eingesetzt werden. Insbesondere ist es auch denkbar, Platten mit einem mehrschichtigen Aufbau aus Kunststoff herzustellen. Problematisch bei der Befestigung solcher Platten ist, dass die Verbindung zwischen dem Kunststoffkern und den oberflächenbildenden Werkstoffen häufig schwierig ist. Zur Befestigung solcher Platten ist es daher üblich die Platte mit einem Durchgangsloch zu versehen und anschließend zu verschrauben. Solche Verschraubungen sind jedoch insbesondere an Außenseiten von Gebäuden nicht unproblematisch. Neben der optischen Beeinträchtigung ist hier insbesondere die fehlende Dichtigkeit der Außenseite zu nennen, da am Schraubenkopf und durch das Durchgangsloch Wasser hinter die Verbundplatte dringen kann.Metal composite panels as typical examples of composite panels usually consist of a plastic core, which is planked on both sides with thin metal plates. Instead of the metal plates, another composite material harder than the core can be used in other composite plate systems. In particular, it is also conceivable to produce plates with a multilayer structure made of plastic. A problem with the attachment of such plates is that the connection between the plastic core and the surface-forming materials is often difficult. For attachment of such plates, it is therefore common to provide the plate with a through hole and then to screw. However, such fittings are not unproblematic, especially on the outside of buildings. In addition to the optical impairment is here in particular the lack of tightness of the outside to call, as at the screw head and through the through hole water can penetrate behind the composite plate.
Ein erster Vorschlag zur Lösung dieser Probleme ist in der
Nachteilig an der beschriebenen Ausführungsform ist, dass nur im Bereich der Enden des Halteelements, die über die Grundplatte herausstehen, eine Kraftübertragung von dem Befestigungselement auf die Verbundplatte möglich ist. Gerade bei Verbundwerkstoffen bei denen die Verbindung zwischen der Deckplatte und dem Kunststoffkern vergleichsweise schlecht ist, ist dies jedoch problematisch. Die Krafteinleitung erfolgt über einen zu kleinen Flächenbereich. Ein Verformen der Deckplatte und eventuell ein Abreißen von dem Kunststoffkern ist daher möglich.
Aus der
Es ist daher die Aufgabe der Erfindung, eine verbesserte Befestigungslösung zu schaffen.
Die Aufgabe wird durch das Befestigungselement nach Anspruch 1 sowie das entsprechende Befestigungssystem gelöst. Das erfindungsgemäße Befestigungselement für eine Platte weist einen Stift zur Befestigung an einen Plattenhalter auf. Ein solcher Stift kann beispielsweise ein Gewindestift sein, der an einer Grundplatte des Befestigungselements befestigt ist. Eine Befestigung des Stifts an der Grundplatte kann beispielsweise durch Schweißen erfolgen. An der Grundplatte sind mehrere Halteelemente fixierbar. Durch die mehreren Halteelemente ist ein Verteilen der Kraft, mit der die Verbundplatte an einem Plattenhalter, beispielsweise einer Fassade eines Gebäudes befestigt ist, möglich. Insbesondere können die mehreren Halteelemente über den Umfang der Grundplatte verteilt angeordnet sein. Das punktuelle Einbringen von Kraft in die Verbundplatte kann somit verhindert werden. Zudem weisen die Halteelemente einen flächigen Auflagebereich auf und einen gegenüber diesem Auflagebereich abgewinkelten Abschnitt. Der abgewinkelte Abschnitt ist dabei so orientiert, dass er bei flächigem Anliegen des Auflagebereichs der Halteelemente auf der Grundplatte von dem Stift zur Befestigung weg weist. Der abgewinkelte Bereich steht über den äußeren Rand der Grundplatte hinaus.
Durch diese Anordnung ist es möglich, dass der abgeschrägte Bereich durch einen schmalen Spalt zwischen der Ausnehmung in der Platte und der Grundplatte des Befestigungselements eingesetzt wird. Das anschließende Fixieren des Halteelements an der Grundplatte bewirkt, dass die abgeschrägten Bereiche schräg in die Verbundplatte hineinragen und dort flächig an einer entsprechenden Ausfräsung der Platte anliegen können. Verwendet man nun Halteelemente, die im Wesentlichen einem Kreissegment entsprechen, so kann über fast den gesamten Umfang einer beispielsweise kreisförmigen Grundplatte eine Übertragung von Kraft erfolgen. Die Fläche ist gegenüber dem bekannten Befestigungssystem daher erheblich vergrößert.
Insbesondere werden die mehreren Halteelemente, die beispielsweise eine Übertragung von Kraft über nahezu den gesamten Umfang der Grundplatte ermöglichen, über eine plastisch formbare Verbindung miteinander verbunden. Über eine solche plastische formbare Verbindung ist es möglich, lediglich eines der Halteelemente fest mit der Grundplatte zu verbinden. Dies erleichtert den Montageaufwand erheblich.
Dabei bildet der Bereich des Übergangs die plastisch verformbare Verbindung im Bereich des Übergangs zwischen dem Auflagebereich und dem abgewinkelten Abschnitt der Halteelemente durch einen Steg bildet. Die Ausbildung eines solchen Stegs in diesem Bereich ermöglicht ein Verdrehen des Stegs im Zuge einer Vormontage. Damit zeigen die von dem mit der Grundplatte fest zu verbindenden Halteelement in Umfangsrichtung abgewandten Enden der benachbarten Halteelemente in Richtung des Stifts. Dadurch kann das gesamte, vormontierte Befestigungselement leicht in eine Ausfräsung einer Platte eingesetzt werden. Die Ausfräsung ist hierzu vorzugsweise geringfügig größer zu gestalten als die Grundplatte des Befestigungselements. Durch diese etwas größere, hinterschnittene Ausfräsung kann das bereits an der Grundplatte befestigte Halteelement in den Hinterschnitt eingesetzt werden. Anschließend können die benachbarten Halteelemente ebenfalls in den Hinterschnitt gedrückt werden, wobei der abgewinkelte Bereich ähnlich wie bereits zuvor beschrieben durch einen Spalt zwischen der Grundplatte und der Platte eingesetzt werden. Durch das Abwinkeln werden bei Einwirken einer Zugkraft auf den Stift die Halteelemente nicht nur radial nach außen gedrückt, sondern auch der Auflagebereich flächig an der Grundplatte gehalten. Die Verbindung zwischen dem fest an der Grundplatte befestigten Halteelement und den benachbarten Halteelementen dient also lediglich der Montage. Anschließend sind die Halteelemente durch die auftretenden Kräfte hinsichtlich ihrer Position ohnehin fixiert.A first suggestion to solve these problems is in the
A disadvantage of the described embodiment is that only in the region of the ends of the holding element, which protrude beyond the base plate, a power transmission from the fastening element to the composite plate is possible. Especially with composite materials where the connection between the cover plate and the plastic core is relatively poor, but this is problematic. The force is applied over a too small surface area. Deformation of the cover plate and possibly tearing off the plastic core is therefore possible.
From the
It is therefore the object of the invention to provide an improved fastening solution.
The object is achieved by the fastening element according to claim 1 and the corresponding fastening system. The fastening element according to the invention for a plate has a pin for attachment to a plate holder. Such a pin may for example be a threaded pin which is fixed to a base plate of the fastener. An attachment of the pin to the base plate can be done for example by welding. On the base plate a plurality of retaining elements can be fixed. By the plurality of retaining elements is a distribution of the force with which the composite plate is fixed to a plate holder, such as a facade of a building, possible. In particular, the plurality of retaining elements can be distributed over the circumference of the base plate. The selective introduction of force in the composite plate can thus be prevented. In addition, the holding elements on a flat bearing area and a relative to this support area angled section. The angled section is oriented so that it is at planar concern of the support area of the Has retaining elements on the base plate of the pin for attachment points away. The angled area protrudes beyond the outer edge of the baseplate.
By this arrangement, it is possible that the chamfered portion is inserted through a narrow gap between the recess in the plate and the base plate of the fastener. The subsequent fixing of the retaining element to the base plate causes the bevelled areas projecting obliquely into the composite plate and there can lie flat against a corresponding cutout of the plate. If holding elements are now used which essentially correspond to a circle segment, then a transmission of force can take place over almost the entire circumference of, for example, a circular base plate. The surface is therefore considerably larger than the known fastening system.
In particular, the plurality of retaining elements, which allow, for example, a transmission of force over almost the entire circumference of the base plate, connected to each other via a plastically formable connection. About such a plastic moldable connection, it is possible to connect only one of the holding elements fixed to the base plate. This considerably simplifies the assembly work.
In this case, the region of the transition forms the plastically deformable connection in the region of the transition between the support region and the angled section of the holding elements by a web. The formation of such a web in this area allows twisting of the web in the course of a pre-assembly. Thus, from the fixed to be connected to the base plate holding element facing away in the circumferential direction ends of the adjacent holding elements in the direction of the pin. This allows the entire, pre-assembled fastener can be easily inserted into a cutout of a plate. The cutout is this to make preferably slightly larger than the base plate of the fastener. By means of this slightly larger, undercut cutout, the holding element already fastened to the base plate can be inserted into the undercut. Subsequently, the adjacent holding elements can also in the undercut are pressed, wherein the angled portion similar to previously described by a gap between the base plate and the plate are used. By bending the retaining elements are not only pressed radially outward by the action of a tensile force on the pin, but also the support area held flat on the base plate. The connection between the fixedly secured to the base plate holding element and the adjacent holding elements thus serves only for mounting. Subsequently, the holding elements are fixed by the forces occurring in terms of their position anyway.
In den Unteransprüchen sind vorteilhafte Weiterbildungen des erfindungsgemäßen Befestigungselements ausgeführt.
Die Grundplatte ist im Wesentlichen kreisförmig ausgebildet und die abgewinkelten Abschnitte der Halteelemente bilden gemeinsam einen Hohlkegelabschnitt. Damit hintergreift die Gesamtheit der Halteelemente im montierten Zustand den Hinterschnitt der Verbundplatte. Wenn die Verbundplatte so dick ist und die Ausfräsung so tief ist, dass nach dem Einsetzen des Befestigungselements in die Ausfräsung der Verbundplatte ein Höhenversatz zwischen der Außenoberfläche der Platte und dem Befestigungselement bzw. der Halteelemente existiert, so kann im Bereich der Öffnung der Deckplatte der Verbundplatte eine Scheibe eingesetzt werden. Mit Hilfe dieser Scheibe wird dann weiterhin die Lagefixierung der Halteelemente verbessert.
Um das Einführen zu erleichtern bzw. um zu verhindern, dass der Ausschnitt in der Platte unnötig groß gewählt werden muss, um das Befestigungselement einzusetzen, kann vorgesehen sein am äußeren Umfangsrand der Grundplatte einen abgeschrägten Bereich vorzusehen. Durch eine solche Abschrägung ist es leichter möglich, den abgewinkelten Abschnitt der Halteelemente an der Kante der Grundplatte vorbei in die Ausfräsung einzusetzen. Dies ist insbesondere in Kombination mit den miteinander verbundenen Halteelementen vorteilhaft. Dadurch, dass nur ein bestimmter Bereich der Grundplatte abgeschrägt ist, wird sichergestellt, dass der abgewinkelte Bereich dennoch bei Anlage des Auflagebereichs auf der Grundplatte die Halteelemente radial nach außen drückt. Jedes der Halteelemente liegt nämlich entlang des Außenumfangs der Grundplatte in einem nichtabgeschrägten Bereich an.
Die Erfindung wird nachfolgend unter Bezugnahme auf die beigefügten Zeichnungen im Detail erläutert. Es zeigen:
-
Figur 1 einen Überblick über das System bestehend aus dem Befestigungselement und einer Verbundplatte zur Erläuterung der Funktionsweise der Befestigungslösung; -
ein Beispiel für mehrere miteinander verbundene Halteelemente;Figur 2 -
eine Draufsicht auf eine Grundplatte mit einem Stift zur Befestigung einer Verbundplatte an beispielsweise einer Fassade eines Gebäudes;Figur 3 -
Figur 4 eine Draufsicht auf eine vormontierte Baugruppe bestehend aus der Grundplatte und den miteinander verbundenen Halteelementen, die das Befestigungselement bilden; -
eine perspektivische Darstellung zur Erläuterung der Ausgangssituation vor dem Einführen des vormontieren Befestigungselements in die Ausfräsung der Verbundplatte;Figur 5 -
ein weiteres, vereinfachtes Ausführungsbeispiel eines Befestigungselements;Figur 6 -
das Befestigungselement derFigur 7 in einer Schnittdarstellung; undFigur 6 -
ein abgewandeltes Ausführungsbeispiel des Befestigungselements nachFigur 8Figur 6
The base plate is formed substantially circular and the angled portions of the holding elements together form a hollow cone section. Thus, the entirety of the holding elements engages behind the undercut of the composite panel in the mounted state. If the composite plate is so thick and the cutout is so deep that after insertion of the fastener in the cutout of the composite plate, a height offset between the outer surface of the plate and the fastener or the holding elements exists, so can in the region of the opening of the cover plate of the composite plate a disc can be used. With the help of this disc, the positional fixation of the holding elements is then further improved.
In order to facilitate the insertion or to prevent the cut in the plate must be made unnecessarily large in order to use the fastener, may be provided on the outer peripheral edge of the base plate to provide a tapered portion. Such a chamfer makes it easier to insert the angled section of the holding elements past the edge of the base plate into the cutout. This is particularly advantageous in combination with the interconnected holding elements. The fact that only a certain area of the base plate is chamfered ensures that the angled area still presses the holding elements radially outward when the bearing area rests on the base plate. Namely, each of the holding members abuts along the outer periphery of the base plate in a non-sloped area.
The invention will be explained in detail below with reference to the accompanying drawings. Show it:
-
FIG. 1 an overview of the system consisting of the fastener and a composite plate to explain the operation of the fastening solution; -
FIG. 2 an example of several interconnected holding elements; -
FIG. 3 a plan view of a base plate with a pin for fixing a composite panel to, for example, a facade of a building; -
FIG. 4 a plan view of a preassembled assembly consisting of the base plate and the interconnected holding elements, which form the fastener; -
FIG. 5 a perspective view for explaining the initial situation prior to insertion of the preassembled fastener in the cutout of the composite panel; -
FIG. 6 another, simplified embodiment of a fastener; -
FIG. 7 the fastener ofFIG. 6 in a sectional view; and -
FIG. 8 a modified embodiment of the fastener afterFIG. 6
In der
Der Durchmesser der vorzugsweise im Wesentlichen kreisförmigen Grundplatte 5 ist so gewählt, dass er kleiner ist als der Öffnungsdurchmesser der Ausfräsung 10 zur Oberfläche der Verbundplatte 2 hin. Auf der Grundplatte 5 sind ferner über den Umfang der Grundplatte verteilt angeordnet, mehrere Halteelemente 6, 6' vorgesehen. Diese Halteelemente 6, 6' weisen einen Auflagebereich 7, 7' auf, und einen abgeschrägten Abschnitt 8, 8'. Der abgeschrägte Abschnitt 8, 8' ist gegenüber dem Auflagebereich 7, 7' vorzugsweise im 45° Winkel abgewinkelt. Die nach außen gerichtete Fläche des abgewinkelten Bereichs 8,8' liegt damit an der Wand der Ausfräsung 10 an.The diameter of the preferably substantially
In der
In der
In der
In gleicher Weise ist über einen zweiten Steg 9' das dritte Halteelement 6" mit dem Halteelement 6 verbunden. Auch hier wird während der Vormontage das dritte Halteelement 6" so verdreht, dass es in Richtung des freien Endes des Gewindestifts 4 aufgerichtet ist. Nach dem Einsetzen des vormontierten Befestigungselements 3 werden dann die beiden aufgerichteten, von dem Halteelement 6 entfernten Enden des Halteelements 6' und des Halteelements 6" in die Ausfräsung 10 hinein gesenkt, so dass die Stege 9, 9' plastisch verformt werden. Nach dem Einsetzen der Halteelemente 6' und 6" in die Ausfräsung kann eine Montage der Platte 2 erfolgen. Durch die Montage wird, wie vorstehend bereits erläutert, sichergestellt, dass die Auflagebereiche 7' und 7" fest an der Grundplatte 5 anliegen und damit die Position der abgewinkelten Abschnitte 8' und 8" ebenso festgelegt ist, wie die Position des abgewinkelten Abschnitts 8.In the same way, the
Die
Diese Abschrägung 12, 12' verläuft so, dass die bei der Vormontage aufgerichteten Halteelemente 6' und 6" mit ihren abgewinkelten Abschnitten 8', 8" entlang dieser Abschrägung in die Ausfräsung 10 geschoben werden können.This
Im Bereich des reduzierten Durchmessers der Grundplatte 5 ergibt sich jedoch ein Abstand zwischen dem Übergang zwischen dem Auflagebereich 7' bzw. 7" und dem abgewinkelten Abschnitt 8' bzw. 8". Um zu verhindern, dass entlang dieses Abstands ein Verschieben des Halteelements 6' bzw. 6" gegenüber der Grundplatte 5 möglich ist, verläuft die Abschrägung 12 bzw. 12' nicht bis zum Bereich des reduzierten Durchmessers der Grundplatte 5. Damit verbleibt zwischen dem Ende der Abschrägung 12 bzw. 12' und dem Beginn des im Durchmesser reduzierten Bereichs der Grundplatte 5 ein Abschnitt, der im montierten Zustand durch Anlage am Übergang zwischen Auflagebereich 7' bzw. 7" und dem abgewinkelten Abschnitt 8' bzw. 8" die Halteelemente 6' und 6" radial nach außen drückt.In the area of the reduced diameter of the
Die
Die
Ein dem gegenüber vereinfachtes Ausführungsbeispiel eines Befestigungselements mit drei einzelnen Halteelementen 6' bzw. 6" ist in der
In der
In der
Claims (5)
- Fastening element for a panel (2), with a pin (4) for fastening to a panel support, wherein the pin (4) is fastened to a base plate (5) and a plurality of retaining elements (6, 6', 6") can be fixed to the base plate (5), which retaining elements have a bearing area (7, 7', 7") and a portion (8, 8', 8") which is angled in relation thereto so that when the bearing area (7, 7', 7") of the retaining elements (6, 6', 6") bears flat on the side of the base plate (5) facing in the direction of the pin (4), the angled portion (8, 8', 8") pointing away from the pin (4) protrudes beyond an outer edge of the base plate (5), wherein a plurality of retaining elements (6, 6', 6") are connected with one another by means of a plastically deformable connection (9, 9'),
characterised in that
for connection of the retaining elements (6, 6', 6") with one another in the region of the junction between the bearing area (7, 7;', 7") and the angled portion (8. 8', 8") of the retaining elements (6, 6', 6") there is a web (9, 9') and/or one of the retaining elements (6) is connected firmly with the base plate (5) in a pre-assembled state while the other retaining elements (6', 6") point in the direction of the end of the pin (4) directed away from the base plate (5). - Fastening element according to claim 1,
characterised in that
the base plate (5) is essentially circular and the angled portion (8, 8', 8") of the retaining elements (6, 6', 6") corresponds to a hollow conical portion. - Fastening element according to one of claims 1 or 2,
characterised in that
formed at the outer edge of the base plate (5) there is a bevelled area (12, 12') to help guide the retaining elements (6', 6") into a recess (10) in the panel (2). - System for fastening a panel (2) to a panel support comprising a panel (2) in which is formed an undercut recess (10), and a fastening element (3) according to one of claims 1 to 3.
- System according to claim 4,
characterised in that
the panel (2) is a composite panel, in particular a metal composite panel.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015003293 | 2015-03-13 | ||
DE102015009726.1A DE102015009726A1 (en) | 2015-03-13 | 2015-07-31 | Mechanical attachment of a metal composite panel |
PCT/EP2016/055426 WO2016146567A1 (en) | 2015-03-13 | 2016-03-14 | Fastening element and fastening system for fastening composite plates, in particular for façade elements |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3268556A1 EP3268556A1 (en) | 2018-01-17 |
EP3268556B1 true EP3268556B1 (en) | 2019-02-27 |
Family
ID=56800596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16712288.6A Not-in-force EP3268556B1 (en) | 2015-03-13 | 2016-03-14 | Fastening element and fastening system for fastening composite plates, in particular for façade elements |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3268556B1 (en) |
DE (1) | DE102015009726A1 (en) |
WO (1) | WO2016146567A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1099003A (en) * | 1954-02-01 | 1955-08-29 | Union Marbriere L | Sealing device for cladding plates, equipment allowing its installation and its applications |
ATE100537T1 (en) * | 1990-01-30 | 1994-02-15 | Fischer Artur Werke Gmbh | FASTENING ELEMENT. |
US8931231B2 (en) * | 2012-01-12 | 2015-01-13 | Eps Specialties Ltd., Inc. | Panel mounting system with removable security cleat |
CN103306453B (en) * | 2013-05-16 | 2017-02-08 | 一禾科技发展(上海)有限公司 | Structure for mounting stone and method for mounting stone |
DE102014004820A1 (en) | 2014-03-11 | 2015-09-17 | Donat Woschko | Fasteners of a metal composite panel |
-
2015
- 2015-07-31 DE DE102015009726.1A patent/DE102015009726A1/en not_active Withdrawn
-
2016
- 2016-03-14 WO PCT/EP2016/055426 patent/WO2016146567A1/en active Application Filing
- 2016-03-14 EP EP16712288.6A patent/EP3268556B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
WO2016146567A1 (en) | 2016-09-22 |
DE102015009726A1 (en) | 2016-09-15 |
EP3268556A1 (en) | 2018-01-17 |
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