EP0108743A1 - Hollow panel with spaced covering sheets arranged in parallel - Google Patents

Hollow panel with spaced covering sheets arranged in parallel Download PDF

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Publication number
EP0108743A1
EP0108743A1 EP83890180A EP83890180A EP0108743A1 EP 0108743 A1 EP0108743 A1 EP 0108743A1 EP 83890180 A EP83890180 A EP 83890180A EP 83890180 A EP83890180 A EP 83890180A EP 0108743 A1 EP0108743 A1 EP 0108743A1
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EP
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Prior art keywords
webs
web
thickness
top surface
cross
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Granted
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EP83890180A
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German (de)
French (fr)
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EP0108743B1 (en
Inventor
Elisabeth Hirsch
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General Electric Plastics Structured Products Europe BV
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General Electric Plastics Structured Products Europe BV
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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
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • 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

Definitions

  • the invention relates to a hollow panel with spaced and parallel top surfaces and each spaced parallel to each other, connecting the top surfaces webs. It can be single or multiple hollow chamber plates.
  • thermoplastic material Such producible in commercial extrusion processes H ohlhuntplatten of thermoplastic material are widely known and have already proven, for example, as a glass sheet replacement or additional glazing.
  • the object of the present invention consists in a H ohlhuntplatte to provide the initially described type, which has significantly improved with only a small increase in weight strength values.
  • This is inventively achieved in that the inside between the webs an cf e ölbt e w n course, has at least a top surface, respectively wherein, in the cross section of the connection region of the webs of this top surface by tangential contact both the outside and the inside of the top surface writable circle has a radius that corresponds approximately to 1 to 4 times the thickness of the web.
  • Such a hollow chamber plate surprisingly has an increased flexural strength, in particular in the direction transverse to the longitudinal direction of the web, wherein if only one curved inner side is used, this is always turned towards the outer side in use.
  • the arched course of at least one inside of the top surface creates, in particular, an increased resistance to buckling of the top surface regions lying between the webs.
  • the hollow chamber plate designed according to the invention has a stiffness in the transverse direction that is almost the same as the stiffness in the longitudinal direction of the web. Larger areas can advantageously be covered without supporting elements.
  • the radius corresponds approximately to the thickness of the web, the thickness of the middle area of the cover surface lying between two webs corresponding to at least 0.5 times the thickness of the web, preferably the thickness of the web.
  • curvature cross section is symmetrical with respect to a central plane extending in the longitudinal direction of the web.
  • the arrangement can be such that - seen in cross section - the curvature of the curved inside has a continuous course from the connection area of a web to the middle area of the cover surface lying between two webs. This is a further increase in Stiffness or training with less material possible with the same stiffness possible.
  • another embodiment of the invention is characterized in that the spacing of the webs from one another is approximately twice as large as the spacing of the two top surfaces from one another.
  • the hollow chamber plate 1 is formed from two cover surfaces 2, 3 arranged parallel to one another and from webs 4 which run perpendicular to it and are arranged parallel to one another.
  • this curvature can correspond, for example, to the course of an ellipse or a line course composed of at least two cross arches.
  • the curvature is connected to the vertical wall of the web with a curvature equal to zero.
  • a circle 6 can be written into the mass accumulation of the intersection area, which tangentially touches both the outer surface of the upper cover surface 2 and the curved inner surface.
  • a radius 7 of the circle 6 is one third larger than the thickness a of the web 4.
  • the hollow chamber plate 1 which is made from impact-resistant, transparent plastic stiff in the extrusion process, is used to cover a glass house
  • the upper cover surface 2 is used as the outside. If wind pressure, precipitation, in particular snow or the like, forces act in the direction of arrow 8 on the hollow chamber plate 1, then there is a bending stress which leads to a tensile load on the lower cover surface and a pressure load on the upper cover surface 3 or 2 . This compressive load can be met in a satisfactory manner in the longitudinal direction of the webs 4 due to their high bending strength. However, the situation is different in the transverse direction of the hollow chamber plate 1 extending in the longitudinal direction of the web.

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  • Architecture (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Laminated Bodies (AREA)
  • Panels For Use In Building Construction (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Refuse Receptacles (AREA)

Abstract

1. A hollow-chamber box panel comprising relatively parallel and spaced outer cover plates and respectively equidistant, relatively parallel webs mutually connecting the cover plates, characterised in that the interior side of at least one cover plate (2) has an arcuate configuration in the region between the webs (4), such that a circle (6) which could be inscribed in the cross section of the region where the webs join this cover plate touching tangentially the outside as well as the inside of the cover plate (2) has a radius which corresponds to approximately 1 to 4 times the thickness of the web (4).

Description

Die Erfindung betrifft eine Hohlkammerplatte mit im Abstand und parallel zueinander angeordneten Deckflächen und jeweils im gleichen Abstand parallel zueinander angeordneten, die Deckflächen miteinander verbindenden Stegen. Hiebei kann es sich-um Einfach- oder Mehrfachhohlkammerplatten handeln.The invention relates to a hollow panel with spaced and parallel top surfaces and each spaced parallel to each other, connecting the top surfaces webs. It can be single or multiple hollow chamber plates.

Derartige im wirtschaftlichen Extrusionsverfahren herstellbare Hohlkammerplatten aus thermoplastischem Kunststoff sind vielfach bekannt und haben sich bereits z.B. als Glasscheibenersatz oder als Zusatzverglasung bewährt.Such producible in commercial extrusion processes H ohlkammerplatten of thermoplastic material are widely known and have already proven, for example, as a glass sheet replacement or additional glazing.

Es ist aber auch gemäß EU-OS 54 856 bekannt, zur Erhöhung der Biege- und Torsionssteifigkeit derartiger Hohlkammerplatten zusätzliche Stege anzuordnen, die mit den Seitenflächen einen von 90° abweichenden Winkel von 75° bis 25° bilden, wobei jeweils mindestens zwei Stege an der gleichen oder nahezu gleichen Stelle.einer Platte befestigt sind. Die damit erzielbare Festigkeitserhöhung hat allerdings auch eine beträchtliche und demgemäß nachteilige Gewichtserhöhung zur Folge.It is also in accordance with EU-OS 54,856 known iege- to increase the B and to place torsional stiffness of such hollow panels, additional webs which form with the side surfaces a 90 ° angle deviating from 75 ° to 25 °, in each case at least two webs of the same or almost the same place. a plate are attached. However, the increase in strength that can be achieved with this also results in a considerable and accordingly disadvantageous increase in weight.

Die Aufgabe der vorliegenden Erfindung besteht nun darin, eine Hohlkammerplatte der eingangs beschriebenen Art zu schaffen, die bei lediglich geringer Gewichtserhöhung wesentlich bessere Festigkeitswerte aufweist. Dies wird erfindungsgemäß dadurch erreicht, daß die Innenseite wenigstens einer Deckfläche jeweils zwischen den Stegen einen cfewölbten Verlauf aufweist, wobei ein in den Querschnitt des Anschlußbereiches der Stege an diese Deckfläche unter tangentialer Berührung sowohl der Außenseite als auch der Innenseite der Deckfläche einschreibbarer Kreis einen Radius aufweist, der etwa der 1 bis 4-fachen Dicke des Steges entspricht.The object of the present invention consists in a H ohlkammerplatte to provide the initially described type, which has significantly improved with only a small increase in weight strength values. This is inventively achieved in that the inside between the webs an cf e ölbt e w n course, has at least a top surface, respectively wherein, in the cross section of the connection region of the webs of this top surface by tangential contact both the outside and the inside of the top surface writable circle has a radius that corresponds approximately to 1 to 4 times the thickness of the web.

Eine derartig ausgebildete Hohlkammerplatte weist in überraschender Weise insbesondere in zur Steglängsrichtung querverlaufender Richtung eine erhöhte Biegefestigkeit auf, wobei bei Ausbildung mit lediglich einer gewölbten Innenseite diese im Einsatz stets der Außenseite zugewendet wird. Durch den gewölbten Verlauf wenigstens einer Deckflächeninnenseite wird insbesondere eine erhöhte Knickfestigkeit der zwischen den Stegen liegenden Deckflächenbereiche geschaffen. Auf Grund dieser erhöhten Knickfestigkeit weist die erfindungsgemäß ausgebildete Hohlkammerplatte eine der Steifigkeit in Steglängsrichtung beinahe gleiche Steifigkeit in Querrichtung auf. Dabei können in vorteilhafter Weise größere Flächen ohne Stützelemente abgedeckt werden.Such a hollow chamber plate surprisingly has an increased flexural strength, in particular in the direction transverse to the longitudinal direction of the web, wherein if only one curved inner side is used, this is always turned towards the outer side in use. The arched course of at least one inside of the top surface creates, in particular, an increased resistance to buckling of the top surface regions lying between the webs. Because of this increased buckling strength, the hollow chamber plate designed according to the invention has a stiffness in the transverse direction that is almost the same as the stiffness in the longitudinal direction of the web. Larger areas can advantageously be covered without supporting elements.

Diese Vorteile der Festigkeitserhöhung sind lediglich durch eine minimale Wandstärkenerweiterung im Bereich einer der beiden Deckflächen erzielbar. Durch das Verhältnis der Stegdicke zu dem im Kreuzungspunkt Steg-Deckfläche einschreibbaren Kreis wird ein vorteilhafter Bereich einer Masseanhäufung zur Erhöhung insbesondere der Plattenquersteifigkeit bei einer lediglich minimalen Gewichtserhöhung festgelegt.These advantages of increasing the strength can only be achieved by minimally increasing the wall thickness in the area of one of the two cover surfaces. The ratio of the web thickness to the circle that can be written at the crossover point of the web top surface makes an advantageous area of mass accumulation to increase in particular the transverse plate rigidity with only a minimal increase in weight.

Gemäß einer vorteilhaften Weiterbildung der Erfindung entspricht der Radius etwa der Dicke des Steges, wobei die Dicke des zwischen zwei Stegen liegenden Decklfächen-Mittelbereiches mindestens dem 0,5facheh der Dicke des Steges, vorzugsweise der Dicke des Steges, entspricht. Mit dieser bevorzugten Ausbildung ist ein optimales Verhältnis zwischen der durch die Wandverdickung erzielbaren Erhöhung der Plattensteifigkeit, insbesondere Biegefestigkeit einerseits und einer lediglich minimalen Gewichtserhöhung andererseits erzielbar.According to an advantageous development of the invention, the radius corresponds approximately to the thickness of the web, the thickness of the middle area of the cover surface lying between two webs corresponding to at least 0.5 times the thickness of the web, preferably the thickness of the web. With this preferred embodiment, an optimal relationship between the increase in plate rigidity that can be achieved by the thickening of the wall, in particular bending strength on the one hand, and a minimal increase in weight on the other hand can be achieved.

Eine andere Weiterbildung der Erfindung besteht darin, daß der Wölbungsquerschhitt symmetrisch in Bezug auf eine in Steglängsrichtung verlaufende Mittelebene ausgebildet ist. Mit dieser symmetrischen Ausbildung ist eine homogene Festigkeitsstruktur über den gesamten Querschnitt der Platte erzielbar.Another development of the invention is that the curvature cross section is symmetrical with respect to a central plane extending in the longitudinal direction of the web. With this symmetrical design, a homogeneous strength structure can be achieved over the entire cross section of the plate.

Bei einer besonders bevorzugten Ausführungsform der erfindungsgemäßen Hohlkammerplatte kann die Anordnung so getroffen sein, daß - im Querschnitt gesehen - die Krümmung der gewölbten Innenseite vom Anschlußbereich eines Steges bis zu dem zwischen zwei Stegen liegenden Deckflächen-Mittelbereich einen stetigen Verlauf aufweist. Hiedurch ist eine weitere Erhöhung der Steifigkeit bzw. eine Ausbildung mit geringerem Materialaufwand bei gleicher Steifigkeit möglich.In a particularly preferred embodiment of the hollow sheet according to the invention, the arrangement can be such that - seen in cross section - the curvature of the curved inside has a continuous course from the connection area of a web to the middle area of the cover surface lying between two webs. This is a further increase in Stiffness or training with less material possible with the same stiffness possible.

Schließlich ist eine andere Ausführungsform der Erfindung dadurch gekennzeichnet, daß der Abstand der Stege zueinander etwa doppelt so groß ist, wie der Abstand der beiden Deckflächen zueinander. Mit einer derartigen Ausbildung kann bei möglichst geringer Anzahl von Stegen eine ausreichend hohe Längs- und Quersteifigkeit erzielt werden.Finally, another embodiment of the invention is characterized in that the spacing of the webs from one another is approximately twice as large as the spacing of the two top surfaces from one another. With such a design, a sufficiently high longitudinal and transverse stiffness can be achieved with the smallest possible number of webs.

Im Folgenden wird die Erfindung an Hand eines in der Zeichnung dargestellten bevorzugten Ausführungsbeispieles näher beschrieben.The invention is described in more detail below with reference to a preferred exemplary embodiment shown in the drawing.

Die Hohlkammerplatte 1 ist aus zwei parallel zueinander angeordneten Deckflächen 2, 3 und aus senkrecht dazu verlaufenden, parallel zueinander angeordneten Stegen 4 gebildet. Im Kreuzungsbereich der Stege 4 mit der oberen Deckfläche 2 ist deren Innenseite gewölbt ausgebildet. Diese Wölbung kann im Querschnitt gesehen z.B. dem Verlauf einer Ellipse oder einem aus wenigstens zwei Kreuzbögen zusammengesetzten Linienverlaüf entsprechen. Aus Gründen einer weitgehenden Erhöhung der Festigkeit ist es von besonderem Vorteil, wenn für die Wölbung ein solcher Querschnitts-Linienzug gewählt wird, dessen Krümmung ausgehend vom Anschlußdie bereich an vertikal verlaufende Innenwand des Steges bis zu dem zwischen zwei Stegen 4 liegenden Deckflächen-Mittelbereich 5 stetig, d. h. ohne Knickstellen verläuft. Insbesondere von Vorteil ist in diesem Zusammenhang, daß der Anschluß der Wölbung an die Vertikalwand des Steges mit einer Krümmung gleich Null erfolgt. In die Masseanhäufung des Kreuzungsbereiches ist ein Kreis 6 einschreibbar, der sowohl die Außenfläche der oberen Deckfläche 2 als auch die gewölbt ausgebildete Innenfläche tangential berührt. Ein Radius 7.des Kreises 6 ist um ein Drittel größer als die Dicke a des Steges 4.The hollow chamber plate 1 is formed from two cover surfaces 2, 3 arranged parallel to one another and from webs 4 which run perpendicular to it and are arranged parallel to one another. In the area of intersection of the webs 4 with the upper cover surface 2, the inside is curved. Viewed in cross section, this curvature can correspond, for example, to the course of an ellipse or a line course composed of at least two cross arches. For reasons of a substantial increase in strength, it is particularly advantageous if such a cross-sectional line is selected for the curvature, the curvature of which, starting from the connection, extends the region of the vertically extending inner wall of the web to the middle surface area 5 lying between two webs 4 runs continuously, ie without kinks. It is particularly advantageous in this context that the curvature is connected to the vertical wall of the web with a curvature equal to zero. A circle 6 can be written into the mass accumulation of the intersection area, which tangentially touches both the outer surface of the upper cover surface 2 and the curved inner surface. A radius 7 of the circle 6 is one third larger than the thickness a of the web 4.

Wird die beispielsweise aus schlagzähem, durchsichtigem Kunststiff im Extrusionsverfahren gefertigte Hohlkammerplatte 1 zur Abdeckung eines Glashauses verwendet, so wird die obere Deckfläche 2 als Außenseite eingesetzt. Wirken nun durch Winddruck, Niederschlag, insbesondere Schnee od. dgl. bedingte Kräfte in Richtung des Pfeils 8 auf die Hohlkammerplatte 1, dann kommt es zu einer Biegebeanspruchung, die zu einer Zugbelastung der unteren und zu einer Druckbelastung der oberen Deckfläche 3 bzw. 2 führt. Dieser Druckbelastung kann in Längsrichtung der Stege 4 durch deren hohe Biegefestigkeit in zufriedenstellender.Weise begegnet werden. Anders verhält es sich aber in der zur Steglängsrichtung verlaufenden Querrichtung der Hohlkammerplatte 1. In dieser Querrichtung hat die erwähnte Druckbelastung der oberen Deckfläche 2 in den bisher bekannten, eingangs beschriebenen Ausführungen häufig in Ein- bzw. Ausknicken des Deckflächen-Mittelbereiches 5 bewirkt. Infolge der erfindungsgemäßen Ausbildung der oberen Deckfläche 2 wird diesen durch einen strichlierten Doppelpfeil 9 dargestellten, die Knickung bewirkenden Kräften ein erhöhter Widerstand entgegengesetzt. Dieser erhöhte Widerstand wird dadurch erzielt, daß die Wanddicke - ausgehend vom mittig zwischen den Stegen 4 befindlichen Deckflächen-Mittelbereich 5 - in Richtung zum Steg 4 jeweils stetig zunimmt, also die Deckflächeninnenseite gewölbt ausgebildet ist. Dadurch wird dem im Kreuzungsbereich des Steges 4 mit der oberen Deckfläche 2 wirkenden maximalen Kipp- bzw. Drehmoment mit der in diesem Bereich vorhandenen Masseanhäufung auch der größte Widerstand entgegengesetzt. Durch die erfindungsgemäß ausgebildete Hohlkammerplatte 1 sind daher bei lediglich geringfügiger'Gewichtserhöhung größere Spannweiten überdeckbar, wobei über die nötige Eigentragfähigkeit hinaus genügend hohe Festigkeiten zur Aufnahme erhöhter Druckbelastungen vorliegen. Durch die Verbesserung der Querfestigkeit wird erfindungsgemäß das statische Verhalten eines Trägers gleicher Festigkeit mit den damit verbundenen Vorteilen erreicht.If, for example, the hollow chamber plate 1, which is made from impact-resistant, transparent plastic stiff in the extrusion process, is used to cover a glass house, the upper cover surface 2 is used as the outside. If wind pressure, precipitation, in particular snow or the like, forces act in the direction of arrow 8 on the hollow chamber plate 1, then there is a bending stress which leads to a tensile load on the lower cover surface and a pressure load on the upper cover surface 3 or 2 . This compressive load can be met in a satisfactory manner in the longitudinal direction of the webs 4 due to their high bending strength. However, the situation is different in the transverse direction of the hollow chamber plate 1 extending in the longitudinal direction of the web. In this transverse direction, the aforementioned pressure loading of the upper cover surface 2 in the previously known designs described at the beginning has often caused the central surface area 5 to buckle or buckle. As a result of the design of the upper cover surface 2 according to the invention, this is shown by a dashed double arrow 9, the forces causing the buckling, an increased resistance set. This increased resistance is achieved in that the wall thickness - starting from the middle of the top surface area 5 located between the webs 4 - increases steadily in the direction of the web 4, that is to say the inside of the top surface is curved. Thereby, the opposite IPP in the crossing area of the web 4 with the upper top surface 2 K maximum acting torque or leaving the accumulation of existing in this field M and the largest resistance. Because of the hollow-chamber plate 1 designed according to the invention, larger spans can therefore be covered with only a slight increase in weight, and in addition to the necessary inherent load-bearing capacity, there are sufficiently high strengths for absorbing increased pressure loads. By improving the transverse strength, the static behavior of a carrier of the same strength is achieved with the associated advantages.

Claims (5)

1. Hohlkammerplatte mit im Abstand und parallel zueinander angeordneten Deckflächen und jeweils im gleichen Abstand parallel zueinander angeordneten, die Deckflächen miteinander verbindenden Stegen, dadurch gekennzeichnet, daß die Innenseite wenigstens einer Deckfläche (2) jeweils zwischen den Stegen (4) einen gewölbten Verlauf aufweist, wobei ein in den Querschnitt des Anschlußbereiches der Stege an diese Deckfläche unter tangentialer Berührung sowohl der Außenseite als auch der Innenseite der Deckfläche (2) einschreibbarer Kreis (6) einen Radius aufweist, der etwa der 1 bis 4-fachen Dicke des Steges (4) entspricht.1. Hollow chamber plate with spaced and parallel top surfaces and in each case equally spaced parallel webs connecting the top surfaces to one another, characterized in that the inside of at least one top surface (2) has a curved course between the webs (4), A circle (6) that can be written into the cross section of the connection area of the webs to this top surface while tangentially touching both the outside and the inside of the top surface (2) has a radius that is approximately 1 to 4 times the thickness of the web (4). corresponds. 2. Hohlkammerplatte nach Anspruch 1, dadurch gekennzeichnet, daß der Radius (7) etwa der Dicke des Steges (4) entspricht, wobei die Dicke des zwischen zwei Stegen (4) liegenden Deckflächen-Mittelbereiches (5) mindestens dem 0,5 fachen der Dicke des Steges (4), vorzugsweise der Dicke des Steges, entspricht.2. H ohlkammerplatte according to claim 1, characterized in that the radius (7) corresponds approximately to the thickness of the web (4), wherein the thickness of the lying between two webs (4) top surface central portion (5) at least 0.5 times the corresponds to the thickness of the web (4), preferably the thickness of the web. 3. Hohlkammerplatte nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Wölbungsquerschnitt symmetrisch ih Bezug auf eine in Steglängsrichtung verlaufende Mittelebene ausgebildet ist. 3rd H ohlkammerplatte according to any one of claims 1 or 2, characterized in that the curvature of cross-section symmetrically with respect ih is formed on a ridge extending in the longitudinal direction of the center plane. 4. Hohlkammerplatte nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß - im Querschnitt gesehen - die Krümmung der gewölbten Innenseite vom Anschlußbereich eines Steges bis zu dem zwischen zwei Stegen (4) liegenden Deckflächen-Mittelbereich (5) einen stetigen Verlauf aufweist.4. H ohlkammerplatte according to claim 1, 2 or 3, characterized in that - seen in cross section - (5) has the curvature of the curved inner surface from the terminal portion of a ridge to the lying between two webs (4) top surface central area a continuous profile . 5. Hohlkammerplatte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Abstand der Stege (4) zueinander etwa doppelt so groß ist, wie der Abstand der beiden Deckflächen (2, 3) zueinander.5. Hollow chamber panel according to one of claims 1 to 4, characterized in that the distance between the webs (4) to each other is approximately twice as large as the distance between the two cover surfaces (2, 3) to each other.
EP83890180A 1982-10-13 1983-10-12 Hollow panel with spaced covering sheets arranged in parallel Expired EP0108743B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3782/82 1982-10-13
AT0378282A AT374866B (en) 1982-10-13 1982-10-13 CAVE CHAMBER PANEL WITH COVERED SURFACES IN A DISTANCE AND PARALLEL

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Publication Number Publication Date
EP0108743A1 true EP0108743A1 (en) 1984-05-16
EP0108743B1 EP0108743B1 (en) 1986-05-28

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EP83890180A Expired EP0108743B1 (en) 1982-10-13 1983-10-12 Hollow panel with spaced covering sheets arranged in parallel

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EP (1) EP0108743B1 (en)
AT (2) AT374866B (en)
DE (1) DE3363797D1 (en)
DK (1) DK467483A (en)
FI (1) FI833640A (en)
NO (1) NO833694L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0695232A1 (en) * 1993-12-27 1996-02-07 Tolo, Incorporated Structural element with interlocking ribbing
BE1013882A3 (en) * 2000-12-22 2002-11-05 Paneltim Nv Separation panel for a dog residence and method for manufacturing of such separation panel.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3521848A1 (en) * 1985-06-19 1987-01-15 Moench Kunststofftechnik Gmbh Cavity slab

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001548A1 (en) * 1979-01-26 1980-08-07 R Mcalister Plastic solar panel structure and manufacturing method and apparatus
EP0027773A1 (en) * 1979-10-22 1981-04-29 Phenol Engineering Solar collector
DE8235298U1 (en) * 1982-12-16 1983-06-23 Bayer Ag, 5090 Leverkusen ROCK DOUBLE PLATE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001548A1 (en) * 1979-01-26 1980-08-07 R Mcalister Plastic solar panel structure and manufacturing method and apparatus
EP0027773A1 (en) * 1979-10-22 1981-04-29 Phenol Engineering Solar collector
DE8235298U1 (en) * 1982-12-16 1983-06-23 Bayer Ag, 5090 Leverkusen ROCK DOUBLE PLATE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0695232A1 (en) * 1993-12-27 1996-02-07 Tolo, Incorporated Structural element with interlocking ribbing
EP0695232A4 (en) * 1993-12-27 1997-05-28 Tolo Inc Structural element with interlocking ribbing
BE1013882A3 (en) * 2000-12-22 2002-11-05 Paneltim Nv Separation panel for a dog residence and method for manufacturing of such separation panel.

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ATE20110T1 (en) 1986-06-15
DK467483D0 (en) 1983-10-11
FI833640A (en) 1984-04-14
EP0108743B1 (en) 1986-05-28
DK467483A (en) 1984-04-14
ATA378282A (en) 1983-10-15
NO833694L (en) 1984-04-16
AT374866B (en) 1984-06-12
DE3363797D1 (en) 1986-07-03
FI833640A0 (en) 1983-10-07

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