EP0899393A2 - Transparent plastic panel - Google Patents
Transparent plastic panel Download PDFInfo
- Publication number
- EP0899393A2 EP0899393A2 EP98890244A EP98890244A EP0899393A2 EP 0899393 A2 EP0899393 A2 EP 0899393A2 EP 98890244 A EP98890244 A EP 98890244A EP 98890244 A EP98890244 A EP 98890244A EP 0899393 A2 EP0899393 A2 EP 0899393A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- plastic
- panel
- plate
- base body
- frame
- 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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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
- E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/54—Slab-like translucent elements
- E04C2/543—Hollow multi-walled panels with integrated webs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/02—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant
- E04D3/06—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor
- E04D3/08—Roof covering by making use of flat or curved slabs or stiff sheets of plane slabs, slates, or sheets, or in which the cross-section is unimportant of glass or other translucent material; Fixing means therefor with metal glazing bars
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/23—Sheet including cover or casing
- Y10T428/239—Complete cover or casing
Definitions
- the invention relates to a translucent plate element with an outer frame, the surrounds a plate-shaped base body on its outer edge on all sides, the base body consists of at least one panel blank of a translucent hollow chamber panel, which is made of thermoplastic, preferably polycarbonate, two in Has spaced cover layers and these connecting webs and contains hollow chambers delimited by the cover layers and webs.
- Such translucent plate elements are used in construction and horticulture in greenhouses and cold frames instead of window glass as a translucent base Glass windows used.
- rectangular, translucent plate elements there is translucent, plate-shaped base body each made of a rectangular plate blank a highly transparent double wall sheet made of highly transparent polycarbonate, during the Frame of four, on the straight longitudinal or transverse edges of the respective rectangular, highly transparent Double-walled, straight aluminum profiles with U-section and four plastic corner parts arranged at the corners of the plate element is formed connect the aluminum profiles in pairs.
- the one from the four aluminum profiles and the four plastic corner parts surround the outer edge of the rectangular, highly transparent hollow panel on all sides and covers the open ends of the hollow chambers to the outside.
- the aluminum profiles of the frame are made of highly transparent with the twin-wall sheet Polycarbonate only mechanically connected by clamp connections.
- a highly transparent twin-wall sheet made from polycarbonate using the extrusion process consists of two flat top layers that are parallel to each other and spaced apart or thin foils and from numerous to the two outer layers or foils vertical and parallel to the extrusion direction of the twin-wall sheet webs, the are arranged at a distance from one another transversely to the direction of extrusion and the two outer layers or connect foils together and keep them at a distance at the same time.
- extruded, highly transparent twin-wall sheets made of highly transparent polycarbonate contain numerous extrusion directions elongated hollow chambers arranged side by side transversely to the direction of extrusion, which lie between the two cover layers of the hollow chamber plate and are separated by their webs or be limited laterally. On the edges running transverse to the direction of extrusion of the hollow chamber plate are the cells formed by their hollow chambers open. The cell walls formed by the cover layers and webs made of polycarbonate The hollow chambers are very flexible and lead even with very thin walls the cellular structure of the twin-wall sheet, to a high inherent rigidity of the twin-wall sheet. Extruded highly transparent twin-wall sheets of the same thickness, based on the mutual Distance between their two cover layers, compared to extruded aluminum profiles relatively large, manufacturing-related deviations in the plate thickness.
- the mechanical connections between the polycarbonate twin-wall sheets and the aluminum U-profiles due to the different behavior of the twin-wall sheets and frame profiles during should not loosen or loosen the use of the translucent plate elements, for example when expanding and contracting with rising or falling outside temperatures or in the case of local temperature differences due to locally differing solar radiation at various points on the twin-wall sheet or the aluminum profile or at Larger or changing temperature differences on the outside or inside of the respective translucent plate element.
- the manufacturing-related deviations in the sheet thickness of the polycarbonate twin-wall sheets be taken into account.
- the base of the U-profile is the open ends of the hollow chambers at the plate edge of the hollow chamber plate covers while its two profile legs cover the top and bottom, respectively the hollow panel are arranged adjacent and parallel to the top or the Extend underside of the twin-wall sheet.
- plastic dowels each with pointed, knife-shaped ends, with which they are transverse to their direction of insertion extending webs of the twin-wall sheet when inserted into the respective aluminum U-P profile cut through to join their clamping section between the tips the two cover layers of the twin-wall sheet transversely to their webs in the respective edge area of the twin-wall sheet.
- the aluminum U-P profiles cover the outer frame with their base sections each the open ends of the hollow chambers at the plate edge of each, made from a highly transparent polycarbonate twin-wall sheet Panel cut from the outside without sealing the hollow chambers at their open ends.
- it forms inside the hollow chambers, for example due to condensation or rain causes moisture that is microscopic with airborne small spores after a short time in the edge area of the highly transparent panel cut leads to unsightly algae growth.
- the highly transparent panel cut warmed up so far in intense sunlight that the algae inside the If hollow chambers die off, a black coating remains on the inside of the hollow chambers back, the translucency of the highly transparent panel cut and reduced brings ugly looks.
- the object of the invention is to provide translucent plate elements which are reinforced Have edge and where the hollow chambers of the respective translucent panel blank of the plate-shaped base body are sealed to the outside.
- a translucent plate element in which an outer frame surrounds a plate-shaped base body on all sides at its outer edge and in which the base body consists of at least one panel blank of a translucent one Hollow chamber plate consists of thermoplastic, preferably polycarbonate, is produced, two spaced-apart cover layers and these with each other has connecting webs and contains hollow chambers delimited by the cover layers and webs.
- This translucent plate element is characterized according to the invention in that a along at least part of the entire edge of the base body in one piece with this Connected plastic frame is provided, which consists of a plastic whose melting point is lower than that of the twin-wall sheet and that open at the edge of the base body Closes hollow chambers of the respective panel blank.
- translucent plate elements are the outer ends of the hollow chambers in the edge area of the base body by the plastic frame connected in one piece to the base body not only closed but also sealed, so that during the use of the Plate element also no microscopic spores can penetrate into the hollow chambers.
- the base body in Edge area for closing the hollow chambers compressed and with one the hollow chambers sealed plastic frame is encapsulated.
- a highly transparent, elastic plastic existing and elastically compressed at its edges Basic body is provided, which is in one piece with the elastically compressed edge the base body is injection molded plastic frame.
- the panel blank of the base body is formed by a hollow sheet made of highly transparent polycarbonate and the plastic frame sprayed onto the elastically compressed edges of the base body consists of a UV-stabilized polystyrene mixed with glass fibers.
- the hollow chambers are made before inserting the respective panel blank dried in the injection mold and any microscopic spores from the Hot air filtered out.
- the hollow chambers are then closed by the injection molding tool and overmolded at its outer ends with the plastic frame, so that in the air existing microscopic spores no longer from the outside through the plastic frame tightly sealed hollow chambers can penetrate.
- Figure 1 shows a rectangular, as a window formed plate element in plan view and Figure 2 shows a section through the translucent Plate element of Figure 1 along the line II - II in Figure 1.
- the translucent plate element 1 has an outer frame 2, which is a plate-shaped Basic body 3 surrounds on all sides at its outer edge.
- the basic body consists of a plate blank of a translucent hollow chamber plate 4, which in turn is made of thermoplastic Plastic, preferably highly transparent polycarbonate.
- the twin-wall sheet 4 has two cover layers 5 arranged at a distance from one another and parallel to one another, 6 and perpendicular to these and connecting them to each other webs 7.
- the twin-wall sheet 4 contains hollow chambers 8 delimited by the cover layers 5, 6 and webs 7.
- the hollow chamber plate 4 is flattened at its outer edge and flattened with this Edge area 9 is recorded in the frame 2 sprayed onto this edge area 9.
- the hollow chambers 8 compressed flat in this edge region 9 are from the plastic frame 2 closed and sealed to the outside.
- the plastic of the plastic frame 2 has a lower melting point than the highly transparent polycarbonate of the twin-wall sheet.
- This plastic is preferably a UV-stabilized glass fiber Polystyrene.
- the twin-wall sheet can also consist of acrylic.
- the frame 2 can all be used for connection the translucent plate member with another translucent plate member or a side wall of a cold frame or a brick wall etc. required connecting elements, such as hinges and the like. The same applies to handles and others Actuators for moving the plate element or for locking the plate element in a certain position opposite a side wall of a cold frame or a brick wall Etc.
- the frame 2 can be self-contained to the inherent rigidity of the translucent Increase plate element.
- the frame 2 but also only from two opposite one another Lasts exist, the hollow chambers of the panel blank only on the transverse to the longitudinal direction close the edges of the panel blank that run along the hollow chambers.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Push-Button Switches (AREA)
- Electric Clocks (AREA)
- Panels For Use In Building Construction (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft ein lichtdurchlässiges Plattenelement mit einem äußeren Rahmen, der einen plattenförmigen Grundkörper an dessen äußerem Rand allseitig umgibt, wobei der Grundkörper aus zumindest einem Plattenzuschnitt einer lichtdurchlässigen Hohlkammerplatte besteht, die aus thermoplastischem Kunststoff, vorzugsweise Polycarbonat, hergestellt ist, zwei im Abstand voneinander angeordnete Deckschichten und diese miteinander verbindende Stege besitzt und durch die Deckschichten und Stege begrenzte Hohlkammern enthält.The invention relates to a translucent plate element with an outer frame, the surrounds a plate-shaped base body on its outer edge on all sides, the base body consists of at least one panel blank of a translucent hollow chamber panel, which is made of thermoplastic, preferably polycarbonate, two in Has spaced cover layers and these connecting webs and contains hollow chambers delimited by the cover layers and webs.
Derartige lichtdurchlässige Plattenelemente werden im Bauwesen und im Gartenbau bei Gewächshäusern und Frühbeeten an Stelle von mit Fensterglas als lichtdurchlässigem Grundkörper versehenen Glasfenstern verwendet.Such translucent plate elements are used in construction and horticulture in greenhouses and cold frames instead of window glass as a translucent base Glass windows used.
Bei bekannten, beispielsweise rechteckigen, lichtdurchlässigen Plattenelementen besteht der lichtdurchlässige, plattenförmige Grundkörper jeweils aus einem rechteckigen Plattenzuschnitt einer hochtransparenten Hohlkammerplatte aus hochtransparentem Polycarbonat, während der Rahmen von vier, auf die geraden Längs- bzw. Querränder der jeweiligen rechteckigen, hochtransparenten Hohlkammerplatte aufgesteckten, geraden Aluminiumprofilen mit U-Querschnitt und vier an den Ecken des Plattenelementes angeordneten Kunststoffeckteilen gebildet wird, die die Aluminiumprofile untereinander paarweise verbinden. Der aus den vier Aluminiumprofilen und den vier Kunststoffeckteilen bestehende Rahmen umgibt den äußeren Rand der rechteckigen, hochtransparenten Hohlkammerplatte auf allen Seiten und deckt die offenen Enden der Hohlkammern nach außen ab. Die Aluminiumprofile des Rahmens sind mit der Hohlkammerplatte aus hochtransparentem Polycarbonat nur mechanisch durch Klemmverbindungen verbunden.In known, for example rectangular, translucent plate elements there is translucent, plate-shaped base body each made of a rectangular plate blank a highly transparent double wall sheet made of highly transparent polycarbonate, during the Frame of four, on the straight longitudinal or transverse edges of the respective rectangular, highly transparent Double-walled, straight aluminum profiles with U-section and four plastic corner parts arranged at the corners of the plate element is formed connect the aluminum profiles in pairs. The one from the four aluminum profiles and the four plastic corner parts surround the outer edge of the rectangular, highly transparent hollow panel on all sides and covers the open ends of the hollow chambers to the outside. The aluminum profiles of the frame are made of highly transparent with the twin-wall sheet Polycarbonate only mechanically connected by clamp connections.
Eine im Extrusionsverfahren aus Polycarbonat hergestellte, hochtransparente Hohlkammerplatte besteht aus zwei zueinander parallelen und im Abstand voneinander angeordneten, ebenen Deckschichten bzw. dünnen Folien und aus zahlreichen zu den beiden Deckschichten bzw. Folien senkrechten und zur Extrusionsrichtung der Hohlkammerplatte parallel verlaufenden Stegen, die quer zur Extrusionsrichtung im Abstand voneinander angeordnet sind und die beiden Deckschichten bzw. Folien miteinander verbinden und gleichzeitig auf Abstand halten. Die extrudierten, hochtransparenten Hohlkammerplatten aus hochtransparenten Polycarbonat (im englischen Sprachraum als polycarbonate structural sheets bezeichnet) enthalten zahlreiche, in Extrusionsrichtung langgestreckte und quer zur Extrusionsrichtung nebeneinander angeordnete Hohlkammern, die zwischen den beiden Deckschichten der Hohlkammerplatte liegen und durch deren Stege getrennt bzw. seitlich begrenzt werden. An den quer zur Extrusionsrichtung verlaufenden Rändern der Hohlkammerplatte sind die von ihren Hohlkammern gebildeten Zellen jeweils nach außen offen. Die von den aus Polycarbonat bestehenden Deckschichten und Stegen gebildeten Zellwände der Hohlkammern sind sehr flexibel und führen schon bei sehr geringen Wandstärken, aufgrund der zelligen Struktur der Hohlkammerplatte, zu einer hohen Eigensteifigkeit der Hohlkammerplatte. Extrudierte hochtransparente Hohlkammerplatten gleicher Dicke, bezogen auf den gegenseitigen Abstand ihrer beiden Deckschichten, weisen im Vergleich zu stranggepreßten Aluminiumprofilen relativ große, herstellungsbedingte Abweichungen in der Plattendicke auf.A highly transparent twin-wall sheet made from polycarbonate using the extrusion process consists of two flat top layers that are parallel to each other and spaced apart or thin foils and from numerous to the two outer layers or foils vertical and parallel to the extrusion direction of the twin-wall sheet webs, the are arranged at a distance from one another transversely to the direction of extrusion and the two outer layers or connect foils together and keep them at a distance at the same time. The extruded, highly transparent twin-wall sheets made of highly transparent polycarbonate (in the English-speaking world referred to as polycarbonate structural sheets) contain numerous extrusion directions elongated hollow chambers arranged side by side transversely to the direction of extrusion, which lie between the two cover layers of the hollow chamber plate and are separated by their webs or be limited laterally. On the edges running transverse to the direction of extrusion of the hollow chamber plate are the cells formed by their hollow chambers open. The cell walls formed by the cover layers and webs made of polycarbonate The hollow chambers are very flexible and lead even with very thin walls the cellular structure of the twin-wall sheet, to a high inherent rigidity of the twin-wall sheet. Extruded highly transparent twin-wall sheets of the same thickness, based on the mutual Distance between their two cover layers, compared to extruded aluminum profiles relatively large, manufacturing-related deviations in the plate thickness.
Hochtransparente Hohlkammerplatten aus Polycarbonat sind im Vergleich zu gleich großen und gleich dicken Glasplatten aus herkömmlichem Fensterglas wesentlich leichter und praktisch unzerbrechlich. Darüberhinaus besitzen sie aufgrund ihrer zelligen Struktur ein ausgezeichnetes Wärmedämmungsvermögen und ein geringes Schalleitvermögen.Highly transparent twin-wall sheets made of polycarbonate are compared to equally large and equally thick glass plates made of conventional window glass much lighter and practical unbreakable. In addition, they have an excellent structure due to their cellular structure Thermal insulation and low sound conductivity.
Die mechanische Verbindung einer hochtransparenten Hohlkammerplatte aus Polycarbonat, die eine hohe Eigensteifigkeit aber sehr dünne und sehr flexible Deckschichten und Stege mit Wandstärken im Bereich von 0,001 bis 0,003 mm besitzt, mit den Aluminiumprofilen des Rahmens mit ihrem U-Querschnitt und Wandstärken im Bereich von 0,5 bis 3 mm ist sehr schwierig und mit einer Reihe von Nachteilen verbunden, die durch die unterschiedlichen Wandstärken und die unterschiedlichen mechanischen Materialeigenschaften der Polycarbonat-Hohlkammerplatte einerseits und der Aluminium-U-Profile anderseits bedingt sind. Dazu kommt noch, daß sich die mechanischen Verbindungen zwischen den Polycarbonat-Hohlkammerplatten und den Aluminium-U-Profilen durch das unterschiedliche Verhalten der Hohlkammerplatten und Rahmenprofile während des Gebrauches der lichtdurchlässigen Plattenelemente nicht lockern bzw. lösen sollen, beispielsweise beim Ausdehnen und Zusammenziehen bei steigenden bzw. sinkenden Außentemperaturen oder bei durch örtlich unterschiedliche Sonneneinstrahlung bedingten, örtlichen Temperaturunterschieden an verschiedenen Stellen der Hohlkammerplatte bzw. des Aluminiumprofiles oder bei größeren bzw. wechselnden Temperaturunterschieden an der Außenseite bzw. der Innenseite des jeweiligen lichtdurchlässigen Plattenelementes.The mechanical connection of a highly transparent twin-wall sheet made of polycarbonate high inherent rigidity but with very thin and very flexible cover layers and webs Has wall thicknesses in the range of 0.001 to 0.003 mm, with the aluminum profiles of the frame with its U-section and wall thicknesses in the range of 0.5 to 3 mm is very difficult and associated with a number of disadvantages, due to the different wall thicknesses and the different mechanical material properties of the polycarbonate twin-wall sheet on the one hand and the aluminum U-profiles are caused on the other hand. In addition, the mechanical connections between the polycarbonate twin-wall sheets and the aluminum U-profiles due to the different behavior of the twin-wall sheets and frame profiles during should not loosen or loosen the use of the translucent plate elements, for example when expanding and contracting with rising or falling outside temperatures or in the case of local temperature differences due to locally differing solar radiation at various points on the twin-wall sheet or the aluminum profile or at Larger or changing temperature differences on the outside or inside of the respective translucent plate element.
Beim Herstellen der mechanischen Verbindung zwischen einer Polycarbonat-Hohlkammerplatte mit ihren sehr dünnen und sehr flexiblen Deckschichten und Stegen und einem demgegenüber sehr steifen Aluminium-U-Profil mit seiner relativ dicken Basis und seinen relativ dicken Profilschenkeln müssen die herstellungsbedingten Abweichungen in der Plattendicke der Polycarbonat-Hohlkammerplatten berücksichtigt werden. Innerhalb des lichtdurchlässigen Plattenelementes umgreift das U-Profil jeweils einen Randbereich der betreffenden Polycarbonat-Hohlkammerplatte, wobei die Basis des U-Profiles die offenen Enden der Hohlkammern am Plattenrand der Hohlkammerplatte abdeckt, während seine beiden Profilschenkel der Oberseite bzw. der Unterseite der Hohlkammerplatte benachbart angeordnet sind und sich parallel zur Oberseite bzw. der Unterseite der Hohlkammerplatte erstrecken.When establishing the mechanical connection between a polycarbonate twin-wall sheet with their very thin and very flexible cover layers and webs and a very different one rigid aluminum U-profile with its relatively thick base and its relatively thick profile legs the manufacturing-related deviations in the sheet thickness of the polycarbonate twin-wall sheets be taken into account. Inside the translucent plate element the U-profile encompasses one edge area of the polycarbonate twin-wall sheet in question, the base of the U-profile is the open ends of the hollow chambers at the plate edge of the hollow chamber plate covers while its two profile legs cover the top and bottom, respectively the hollow panel are arranged adjacent and parallel to the top or the Extend underside of the twin-wall sheet.
Zur Herstellung der mechanischen Verbindung zwischen der Polycarbonat-Hohlkammerplatte und dem Aluminium-U-Profil ist es bekannt, in den Profilschenkeln des Metallprofiles in Längsrichtung im Abstand voneinander angeordnete, kleine Ausstanzungen vorzusehen, die als kleine Widerhaken nach innen in den vom Metallprofil umschlossenen Hohlraum hineingedrückt werden bis sie die elastischen Deckschichten der Hohlkammerplatte durchdringen und in einzelne Hohlkammern der Hohlkammerplatte ragen. Diese Verklammerung zwischen den Metallwiderhaken und den Kunststoffzellwänden ist nicht sehr dauerhaft, weil das unterschiedliche Dehnungsverhalten der beiden Werkstoffe Polycarbonat und Aluminium bei wechselnden Temperaturen während des Gebrauches des lichtdurchlässigen Plattenelementes z. B. als Seitenwand oder obere Abdeckung eines Frühbeetes, sehr bald zum Ausreißen der Widerhaken aus der Hohlkammerplatte führt.To establish the mechanical connection between the polycarbonate twin-wall sheet and the aluminum U-profile is known in the profile legs of the metal profile in the longitudinal direction to provide small punched out spaced from each other, the small Barbs are pushed inwards into the cavity enclosed by the metal profile until they penetrate the elastic cover layers of the twin-wall sheet and into individual hollow chambers protrude from the twin-wall sheet. This clinging between the metal barbs and the Plastic cell walls are not very durable because of the different stretching behavior of the two materials polycarbonate and aluminum at changing temperatures during the Use of the translucent plate member z. B. as a side wall or top cover of a cold frame, very soon leads to the barbs being pulled out of the twin-wall sheet.
Zur Herstellung der mechanischen Verbindung zwischen der Polycarbonat-Hohlkammerplatte und dem Aluminium-U-Profil ist es weiters bekannt, die beiden Profilschenkel des Metallprofiles an ihren freien Enden über die gesamte Länge des U-Profiles jeweils bis auf einen gegenseitigen Abstand zueinander zu drücken, der kleiner ist als die Mindestplattendicke der Polycarbonat-Hohlkammerplatte. Dabei wird die Hohlkammerplatte durch die freien Ränder der Profilschenkel an ihren Deckschichten und Stegen zusammengedrückt, wobei die zusammengedrückten und auf Knicken beanspruchten, elastischen Stege der Hohlkammerplatte die nicht sehr dauerhafte Klemmwirkung dieser Verbindung erzeugen.To establish the mechanical connection between the polycarbonate twin-wall sheet and the aluminum U-profile it is also known, the two profile legs of the metal profile at their free ends over the entire length of the U-profile except for one another Distance from each other that is smaller than the minimum panel thickness of the polycarbonate hollow panel. The hollow panel is covered by the free edges of the profile legs compressed on their cover layers and webs, the compressed and on Buckling stressed, elastic webs of the twin-wall sheet the not very permanent clamping effect create this connection.
Zur Herstellung der mechanischen Verbindung zwischen der Polycarbonat-Hohlkammerplatte und dem Aluminium-U-Profil ist es weiters bekannt, die die Aluminiumprofile untereinander paarweise verbindenden Kunststoffeckteile des Rahmen jeweils mit seitlich abstehenden Kunststoffdübeln zu versehen, die in das stirnseitige Ende des jeweiligen U-Profiles und in den von diesem umschlossenen Randbereich der jeweiligen Hohlkammerplatte eingeführt werden, um dort die beiden Deckschichten der Hohlkammerplatte jeweils zwischen sich und dem jeweiligen Profilschenkel des Metallprofiles einzuklemmen und so die mechanische Verbindung zwischen der Polycarbonat-Hohlkammerplatte und dem Aluminium-U-Profil herzustellen. Diese Kunststoffdübel sind jeweils mit spitzen, schneidenförmigen Enden versehen, mit denen sie die quer zu ihrer Einführrichtung verlaufenden Stege der Hohlkammerplatte beim Einführen in das jeweilige Aluminium-U-Pprofil durchschneiden, um ihren an die Spitze anschließenden Klemmabschnitt zwischen den beiden Deckschichten der Hohlkammerplatte quer zu deren Stege in den jeweiligen Randbereich der Hohlkammerplatte einzuführen. To establish the mechanical connection between the polycarbonate twin-wall sheet and the aluminum U-profile it is also known that the aluminum profiles in pairs connecting plastic corner parts of the frame each with laterally protruding plastic dowels to be provided in the front end of the respective U-profile and in this enclosed edge region of the respective hollow chamber plate to be inserted there two cover layers of the twin-wall sheet in each case between themselves and the respective profile leg of the metal profile and thus the mechanical connection between the polycarbonate twin-wall sheet and the aluminum U-profile. These are plastic dowels each with pointed, knife-shaped ends, with which they are transverse to their direction of insertion extending webs of the twin-wall sheet when inserted into the respective aluminum U-P profile cut through to join their clamping section between the tips the two cover layers of the twin-wall sheet transversely to their webs in the respective edge area of the twin-wall sheet.
Bei den bekannten lichtdurchlässigen Plattenelementen decken die Aluminium-U-Pprofile des äußeren Rahmens mit ihren Basisabschnitten jeweils die offenen Enden der Hohlkammern am Plattenrand des jeweiligen, aus einer hochtransparenten Polycarbonat-Hohlkammerplatte hergestellten Plattenzuschnittes nach außen ab, ohne die Hohlkammern an ihren offenen Enden abzudichten. In der Praxis bildet sich im Inneren der Hohlkammern, beispielsweise durch Kondenswasser oder Regen verursacht, Feuchtigkeit, die zusammen mit in der Luft befindlichen mikroskopisch kleinen Sporen schon nach kurzer Zeit im Randbereich des jeweiligen hochtransparenten Plattenzuschnittes zu einem unschönen Algenwachstum führt. Obwohl sich der hochtransparente Plattenzuschnitt bei intensiver Sonneneinstrahlung soweit erwärmt, daß die Algen im Inneren der Hohlkammern absterben, bleibt davon ein schwarzer Belag an den Innenseiten der Hohlkammern zurück, der Lichtdurchlässigkeit des hochtransparenten Plattenzuschnittes verringert und ein unschönes Aussehen mit sich bringt. Dieser schwarzer Belag an den Innenseiten der Hohlkammern wird bei jedem neuerlichen Auftreten von Feuchtigkeit im Inneren der Hohlkammern jeweils um ein Stück größer und kann ohne Zerstören des lichtdurchlässigen Plattenelementes nicht aus den Hohlkammern entfernt werden, weil diese durch die Aluminiumprofile des Rahmens abgedeckt und daher unzugänglich sind. Beim Zerlegen des lichtdurchlässigen Plattenelementes in seine Einzelteile müßten die mechanischen Verbindungen zwischen der Polycarbonat-Hohlkammerplatte und den Aluminiumprofilen des Rahmens aufgelöst werden, was ohne Zerstörung der jeweiligen Hohlkammerplatte bzw. ihrer Deckschichten nicht möglich ist.In the known translucent plate elements, the aluminum U-P profiles cover the outer frame with their base sections each the open ends of the hollow chambers at the plate edge of each, made from a highly transparent polycarbonate twin-wall sheet Panel cut from the outside without sealing the hollow chambers at their open ends. In practice, it forms inside the hollow chambers, for example due to condensation or rain causes moisture that is microscopic with airborne small spores after a short time in the edge area of the highly transparent panel cut leads to unsightly algae growth. Although the highly transparent panel cut warmed up so far in intense sunlight that the algae inside the If hollow chambers die off, a black coating remains on the inside of the hollow chambers back, the translucency of the highly transparent panel cut and reduced brings ugly looks. This black coating on the inside of the hollow chambers with each new occurrence of moisture inside the hollow chambers a bit bigger and can not do without destroying the translucent plate element the hollow chambers are removed because they are covered by the aluminum profiles of the frame and are therefore inaccessible. When disassembling the translucent plate element into it Individual parts would have to be the mechanical connections between the polycarbonate twin-wall sheet and the aluminum profiles of the frame can be resolved, without destroying the respective Hollow chamber plate or its cover layers is not possible.
Aufgabe der Erfindung ist es lichtdurchlässige Plattenelemente anzugeben, die einen verstärkten Rand besitzen und bei denen die Hohlkammern des jeweiligen lichtdurchlässigen Plattenzuschnittes des plattenförmigen Grundkörpers nach außen abgedichtet sind.The object of the invention is to provide translucent plate elements which are reinforced Have edge and where the hollow chambers of the respective translucent panel blank of the plate-shaped base body are sealed to the outside.
Zur Lösung dieser Aufgabe wird ein Lichtdurchlässiges Plattenelement vorgeschlagen, bei dem ein äußerer Rahmen einen plattenförmigen Grundkörper an dessen äußerem Rand allseitig umgibt und bei dem der Grundkörper aus zumindest einem Plattenzuschnitt einer lichtdurchlässigen Hohlkammerplatte besteht, die aus thermoplastischem Kunststoff, vorzugsweise Polycarbonat, hergestellt ist, zwei im Abstand voneinander angeordnete Deckschichten und diese miteinander verbindende Stege besitzt und durch die Deckschichten und Stege begrenzte Hohlkammern enthält.To solve this problem, a translucent plate element is proposed in which an outer frame surrounds a plate-shaped base body on all sides at its outer edge and in which the base body consists of at least one panel blank of a translucent one Hollow chamber plate consists of thermoplastic, preferably polycarbonate, is produced, two spaced-apart cover layers and these with each other has connecting webs and contains hollow chambers delimited by the cover layers and webs.
Dieses lichtdurchlässige Plattenelement ist erfindungsgemäß dadurch gekennzeichnet, daß ein entlang zumindest eines Teiles des gesamten Randes des Grundkörpers mit diesem einstückig verbundener Kunststoffrahmen vorgesehen ist, der aus einem Kunststoff besteht dessen Schmelzpunkt niedriger als der der Hohlkammerplatte ist und der die am Rand des Grundkörpers offenen Hohlkammern des jeweiligen Plattenzuschnittes verschließt. This translucent plate element is characterized according to the invention in that a along at least part of the entire edge of the base body in one piece with this Connected plastic frame is provided, which consists of a plastic whose melting point is lower than that of the twin-wall sheet and that open at the edge of the base body Closes hollow chambers of the respective panel blank.
Bei dem erfindungsgemäß vollständig aus Kunststoff bestehenden und jeweils als Verbundelementen ausgebildeten, lichtdurchlässigen Plattenelementen sind die äußeren Enden der Hohlkammern im Randbereich des Grundkörpers durch den mit dem Grundkörper einstückig verbundenen Kunststoffrahmen nicht nur verschlossen sondern auch adgedichtet, sodaß während des Gebrauches des Plattenelementes auch keine mikroskopisch kleinen Sporen in die Hohlkammern eindringen können.In the case of the completely plastic according to the invention and in each case as composite elements trained, translucent plate elements are the outer ends of the hollow chambers in the edge area of the base body by the plastic frame connected in one piece to the base body not only closed but also sealed, so that during the use of the Plate element also no microscopic spores can penetrate into the hollow chambers.
Gemäß einem weiteren Merkmal der Erfindung kann vorgesehen sein, daß der Grundkörper im Randbereich zum Verschließen der Hohlkammern zusammengedrückt und mit einem die Hohlkammern dicht verschließenden Kunststoffrahmen umspritzt ist.According to a further feature of the invention it can be provided that the base body in Edge area for closing the hollow chambers compressed and with one the hollow chambers sealed plastic frame is encapsulated.
Gemäß einem weiteren Merkmal der Erfindung kann vorgesehen sein, daß ein aus hochtransparentem, elastischem Kunststoff bestehender und an seinen Rändern elastisch zusammengedrückter Grundkörper vorgesehen ist, der einstückig mit dem auf den elastisch zusammengedrückten Rand des Grundkörpers aufgespritzten Kunststoffrahmen ausgebildet ist.According to a further feature of the invention, it can be provided that a highly transparent, elastic plastic existing and elastically compressed at its edges Basic body is provided, which is in one piece with the elastically compressed edge the base body is injection molded plastic frame.
Gemäß einem weiteren Merkmal der Erfindung kann vorgesehen sein, daß der Plattenzuschnitt des Grundkörpers von einer Hohlkammerplatte aus hochtransparentem Polycarbonat gebildet wird und der auf die elastisch zusammengedrückten Ränder des Grundkörpers aufgespritzte Kunststoffrahmen aus einem mit Glasfasern versetzten, UV-stabilisierten Polystyrol besteht.According to a further feature of the invention it can be provided that the panel blank of the base body is formed by a hollow sheet made of highly transparent polycarbonate and the plastic frame sprayed onto the elastically compressed edges of the base body consists of a UV-stabilized polystyrene mixed with glass fibers.
In weiterer Ausgestaltung der Erfindung wird ein Verfahren zum Herstellen von lichtdurchlässigen
Kunststoff-Plattenelementen vorgeschlagen, welches durch die folgenden Schritte gekennzeichnet
ist:
Bei diesem Verfahren werden die Hohlkammern vor dem Einlegen des jeweiligen Plattenzuschnittes in das Spritzgußwerkzeug getrocknet und allfällige mikroskopisch kleinen Sporen aus der Heißluft ausgefiltert. Anschließend werden die Hohlkammern durch das Spritzgußwerkzeug geschlossen und an ihren äußeren Enden mit dem Kunststoffrahmen umspritzt, sodaß in der Luft vorhandene mikroskopisch kleinen Sporen nicht mehr von außen in die durch den Kunststoffrahmen dicht verschlossenen Hohlkammern eindringen können.In this process, the hollow chambers are made before inserting the respective panel blank dried in the injection mold and any microscopic spores from the Hot air filtered out. The hollow chambers are then closed by the injection molding tool and overmolded at its outer ends with the plastic frame, so that in the air existing microscopic spores no longer from the outside through the plastic frame tightly sealed hollow chambers can penetrate.
In der beiliegenden Zeichnung ist ein Ausführungsbeispiel eines erfindungsgemäßen lichtdurchlässigen Kunststoff-Plattenelementes dargestellt. Figur 1 zeigt ein rechteckiges, als Fenster ausgebildetes Plattenelement in Draufsicht und Figur 2 einen Schnitt durch das lichtdurchlässige Plattenelement der Figur 1 entlang der Linie II - II in Figur 1.In the accompanying drawing is an embodiment of a translucent invention Plastic plate element shown. Figure 1 shows a rectangular, as a window formed plate element in plan view and Figure 2 shows a section through the translucent Plate element of Figure 1 along the line II - II in Figure 1.
Das lichtdurchlässige Plattenelement 1 besitzt einen äußeren Rahmen 2, der einen plattenförmigen
Grundkörper 3 an dessen äußerem Rand allseitig umgibt. Der Grundkörper besteht aus
einem Plattenzuschnitt einer lichtdurchlässigen Hohlkammerplatte 4, die ihrerseits aus thermoplastischem
Kunststoff, vorzugsweise hochtransparentem Polycarbonat besteht. Die Hohlkammerplatte
4 weist zwei im Abstand voneinander angeordnete, zueinander parallele Deckschichten 5,
6 und zu diesen senkrechte und diese miteinander verbindende Stege 7 auf. Die Hohlkammerplatte
4 enthält durch die Deckschichten 5, 6 und Stege 7 begrenzte Hohlkammern 8. Die Hohlkammerplatte
4 ist an ihrem äußeren Rand flach zusammengedrückt und mit diesem flach zusammengedrückten
Randbereich 9 in dem auf diesen Randbereich 9 aufgespritzten Rahmen 2 aufgenommen.
Die im diesem Randbereich 9 flach zusammengedrückten Hohlkammern 8 werden von dem Kunststoffrahmen
2 verschlossen und nach außen abgedichtet. Der Kunststoff des Kunststoffrahmens 2
besitzt einen niedrigeren Schmelzpunkt als das hochtransparente Polycarbonat der Hohlkammerplatte.
Dieser Kunststoff ist vorzugsweise ein mit Glasfasern versetztes, UV-stabilisiertes
Polystyrol.The translucent plate element 1 has an
Die Hohlkammerplatte kann auch aus Acryl bestehen. Der Rahmen 2 kann alle für die Verbindung
des lichtdurchlässigen Plattenelementes mit einem anderen lichtdurchlässigen Plattenelement
oder einer Seitenwand eines Frühbeetes oder einer Ziegelmauer etc. erforderlichen Verbindungselemente,
wie Scharniere und dergleichen, enthalten. Gleiches gilt für Handgriffe und andere
Betätigungsorgane zum Bewegen des Plattenelementes oder zum Verriegeln des Plattenelementes
in einer bestimmten Stellung gegenüber einer Seitenwand eines Frühbeetes oder einer Ziegelmauer
etc.The twin-wall sheet can also consist of acrylic. The
Der Rahmen 2 kann in sich geschlossen sein, um die Eigensteifigkeit des lichtdurchlässigen
Plattenelementes zu erhöhen. Der Rahmen 2 aber auch nur aus zwei einander gegenüberliegenden
Leisten bestehen, die die Hohlkammern des Plattenzuschnittes nur an den quer zur Längsrichtung
der Hohlkammern verlaufenden Ränder des Plattenzuschnittes verschließen.The
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT98890244T ATE253155T1 (en) | 1997-08-27 | 1998-08-20 | TRANSLUCENT PLATE ELEMENT MADE OF PLASTIC |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0144497A AT408015B (en) | 1997-08-27 | 1997-08-27 | TRANSPARENT PLASTIC PLATE ELEMENT |
AT1444/97 | 1997-08-27 | ||
AT144497 | 1997-08-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0899393A2 true EP0899393A2 (en) | 1999-03-03 |
EP0899393A3 EP0899393A3 (en) | 2000-05-24 |
EP0899393B1 EP0899393B1 (en) | 2003-10-29 |
Family
ID=3514023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98890244A Expired - Lifetime EP0899393B1 (en) | 1997-08-27 | 1998-08-20 | Transparent plastic panel |
Country Status (4)
Country | Link |
---|---|
US (1) | US6190742B1 (en) |
EP (1) | EP0899393B1 (en) |
AT (2) | AT408015B (en) |
DE (1) | DE59810007D1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ550668A (en) * | 2004-05-07 | 2010-11-26 | Kingspan Res & Dev Ltd | A translucent roof panel with an inner liner skin, an outer weather skin and a multiwall support |
IT201800010134A1 (en) * | 2018-11-07 | 2020-05-07 | Polyworld Systems S R L | Transparent panel for the construction of skylights, relative production method and roofing system including this panel |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2802179A1 (en) * | 1978-01-19 | 1979-07-26 | Essmann Kg Heinz | Light-permeable building element for partitions, greenhouse roofs etc. - comprises polycarbonate, acrylic! or PVC flat flanged shallow tray with flat cover plate |
EP0083030A1 (en) * | 1981-12-28 | 1983-07-06 | Röhm Gmbh | Process for producing a gas-tight sealed hollow panel of plastics material |
DE8605288U1 (en) * | 1986-02-27 | 1986-04-17 | Röhm GmbH, 6100 Darmstadt | Composite twin-wall sheet made of plastic |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4021949A (en) * | 1976-04-07 | 1977-05-10 | American Sign And Advertising Services, Inc. | Illuminated sign system |
US4443987A (en) * | 1979-03-28 | 1984-04-24 | The Franklin Institute | Unitary solar window panel |
US4720951A (en) * | 1986-03-24 | 1988-01-26 | Therma-Tru Corp. | Frame assembly for doors, windows and the like |
-
1997
- 1997-08-27 AT AT0144497A patent/AT408015B/en not_active IP Right Cessation
-
1998
- 1998-08-20 AT AT98890244T patent/ATE253155T1/en active
- 1998-08-20 EP EP98890244A patent/EP0899393B1/en not_active Expired - Lifetime
- 1998-08-20 DE DE59810007T patent/DE59810007D1/en not_active Expired - Lifetime
- 1998-08-26 US US09/140,228 patent/US6190742B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2802179A1 (en) * | 1978-01-19 | 1979-07-26 | Essmann Kg Heinz | Light-permeable building element for partitions, greenhouse roofs etc. - comprises polycarbonate, acrylic! or PVC flat flanged shallow tray with flat cover plate |
EP0083030A1 (en) * | 1981-12-28 | 1983-07-06 | Röhm Gmbh | Process for producing a gas-tight sealed hollow panel of plastics material |
DE8605288U1 (en) * | 1986-02-27 | 1986-04-17 | Röhm GmbH, 6100 Darmstadt | Composite twin-wall sheet made of plastic |
Also Published As
Publication number | Publication date |
---|---|
ATA144497A (en) | 2000-12-15 |
US6190742B1 (en) | 2001-02-20 |
AT408015B (en) | 2001-08-27 |
EP0899393A3 (en) | 2000-05-24 |
EP0899393B1 (en) | 2003-10-29 |
DE59810007D1 (en) | 2003-12-04 |
ATE253155T1 (en) | 2003-11-15 |
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