EP0437810B1 - Lichtelement für geschäumte Polyurethan-Dachelemente - Google Patents

Lichtelement für geschäumte Polyurethan-Dachelemente Download PDF

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Publication number
EP0437810B1
EP0437810B1 EP90125178A EP90125178A EP0437810B1 EP 0437810 B1 EP0437810 B1 EP 0437810B1 EP 90125178 A EP90125178 A EP 90125178A EP 90125178 A EP90125178 A EP 90125178A EP 0437810 B1 EP0437810 B1 EP 0437810B1
Authority
EP
European Patent Office
Prior art keywords
light panel
light
light element
roof elements
connecting end
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.)
Expired - Lifetime
Application number
EP90125178A
Other languages
English (en)
French (fr)
Other versions
EP0437810A1 (de
Inventor
Ernst Voosen
Manfred Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vaw Aluminium AG
Original Assignee
Vaw Aluminium AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vaw Aluminium AG filed Critical Vaw Aluminium AG
Publication of EP0437810A1 publication Critical patent/EP0437810A1/de
Application granted granted Critical
Publication of EP0437810B1 publication Critical patent/EP0437810B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
    • E04D3/28—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of glass or other translucent material
    • 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
    • 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
    • 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
    • E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
    • E04D3/28—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of glass or other translucent material
    • E04D2003/285—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of glass or other translucent material with specially profiled marginal portions for connecting purposes

Definitions

  • the invention relates to a light element for foamed polyurethane roof elements, in particular in the shape of a trapezoid, with a recess in the form of a step on a supporting rib falling towards the center of the panel of the trapezoidal element arranged at the connection end A and with a seal at the opposite connection end B.
  • Such a roof element is known from GB-A 2 147 926. It is a two-shell component reinforced in the trapezoidal corners with HDPE blocks, which is screwed to the adjacent trapezoidal elements by means of flange-like extension parts 44, 46.
  • the sealing between the adjacent trapezoidal sheets is carried out by means of special clamping profiles 66 which have an edge bead 68 at the end.
  • the object of the present invention is to avoid the disadvantages mentioned and a light element with a high insulating effect, simple assembly and absolute rainproofness to manufacture.
  • the object is achieved by the features specified in the main claim.
  • a preferred embodiment of the invention can be found in the features of the subclaims.
  • Fig. 1 the three horizontal layers 1, 2, 3 of a trapezoidal light element are shown. They are kept at a distance by a plurality of vertical support ribs 9 (a - x). At one connection end A to the adjacent light element or other roof panels there is a recess 4 on the upper edge of the trapezoidal wall 5 falling towards the center of the panel.
  • connection side B On the opposite connection side B there is an elastic sealing lip 8 at the lower end of the trapezoidal overlapping hook 7 and the trapezoidal wall 6 falling towards the center of the plate.
  • Fig. 2 the adjacent plates 10, 11 are shown in detail at the joint 12. It can be seen that between the overlapping hook 13 and the step incorporated into the trapezoid wall 16 there is a chamber 14 for interrupting the capillary forces. On the underside 17-18 of the plates 10, 11, the sealing function is fulfilled by the elastic lip 15.
  • covers with a wide span are possible in a self-supporting design.
  • a typical application is that 5 support ribs are arranged on a 600 mm span.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Polyurethanes Or Polyureas (AREA)

Description

  • Die Erfindung betrifft ein Lichtelement für geschäumte Polyurethan-Dachelemente, insbesondere in Trapezquerschnittsform, mit einer Vertiefung in Form einer Stufe an einer zur Plattenmitte hin abfallenden Stützrippe des am Anschlußende A angeordneten Trapezelementes und mit einer Dichtung an dem gegenüberliegenden Anschlußende B.
  • Ein derartiges Dachelement ist aus der GB-A 2 147 926 bekannt. Es handelt sich dabei um ein zweischaliges, in den Trapezecken mit HDPE-Blöcken verstärktes Bauelement, das zu den benachbarten Trapezelementen über flanschartige Verlängerungsteile 44, 46 verschraubt ist. Die Abdichtung zwischen den benachbarten Trapezblechen erfolgt über spezielle Klemmprofile 66, die am Ende eine Randwulst 68 aufweisen. An den zur Plattenmitte hin abfallenden Stützrippen sind Vertiefungen eingebracht, in die die Wulstränder 68 nach Art einer Schnappverbindung eingreifen.
  • Die Regendichtigkeit derartiger Schnappelemente ist nicht über die gesamte Länge des Panels gewährleistet. An den Stellen, wo der Wulstrand nicht vollständig auf der Wetterseite 20 des Außenblechs anliegt, können geringe Wassermengen durch Kapillarkräfte angezogen und über die Stützrippen unter die Abdeckung 66 gelangen. Von hier aus fließt das Wasser an den zwischen den Schraubverbindungen 56, 62 befindlichen Stellen vorbei durch die Spalte 32, 34 auf die Innenseite des Daches. Darüber hinaus hat das Lichtelement gemäß GB-A 2 147 926 den Nachteil einer umständlichen Montage durch Verwendung von Schraubverbindungen und zusätzlichen Teilen, wie z. B. der Abdeckung 66.
  • Aufgabe der vorliegenden Erfindung ist es, die erwähnten Nachteile zu vermeiden und ein Lichtelement mit hoher Isolierwirkung, einfacher Montage und absoluter Regendichtigkeit herzustellen. Die Aufgabe wird durch die im Hauptanspruch angegebenen Merkmale gelöst. Eine bevorzugte Ausgestaltung der Erfindung ist den Merkmalen der Unteransprüche zu entnehmen.
  • Es hat sich gezeigt, daß ein dreischichtiges, formschlüssig profiliertes Lichtelement die Anforderungen hinsichtlich der Wärmedämmung, der einfachen Montage und durch entsprechende konstruktive Ausbildung mittels Dichtlippe die Anforderungen an die Regendichtigkeit in überragendem Maße erfüllt.
  • Im folgenden wird die Erfindung anhand mehrerer Ausführungsbeispiele näher erläutert. Es zeigen:
    • Fig. 1 =
    Lichtelement in dreischichtigem Aufbau mit einseitiger Profilierung,
    Fig. 2 =
    Querschnitt in der Längsfuge zweier benachbarter Lichtelemente.
  • In Fig. 1 sind die drei horizontal verlaufenden Schichten 1, 2, 3 eines trapezförmigen Lichtelementes dargestellt. Sie werden durch eine Vielzahl von vertikalen Stützrippen 9 (a - x) auf Abstand gehalten. An dem einen Anschlußende A zum benachbarten Lichtelement oder anderen Dachplatten befindet sich eine Vertiefung 4 an der oberen Kante der zur Plattenmitte hin abfallenden Trapezwand 5.
  • An der gegenüberliegenden Anschlußseite B befindet sich am unteren Ende des trapezförmig übergreifenden Hakens 7 und der zur Plattenmitte hin abfallenden Trapezwand 6 eine elastische Dichtlippe 8.
  • In Fig. 2 sind die benachbarten Platten 10, 11 an der Stoßstelle 12 ausschnittsweise dargestellt. Es ist erkennbar, daß sich zwischen dem übergreifenden Haken 13 und der in die Trapezwand 16 eingearbeiteten Stufe eine Kammer 14 zur Unterbrechung der Kapillarkräfte befindet. An der Unterseite 17 - 18 der Platten 10, 11 wird die Dichtungsfunktion durch die elastische Lippe 15 erfüllt.
  • Insgesamt wird die Aufgabenstellung durch folgende Kombination gelöst:
    • 1. Formschlüssige Verbindung der benachbarten Elemente 10, 11
    • 2. Passive (Kammer 14) und aktive (Dichtlippe 15) Dichtungsfunktion.
    • 3. Formstabilität durch 3 Schichtenaufbau mit Versteifung durch Stützrippen 9 (a - x)
  • Mit dem erfindungsgemäßen Lichtelement sind Eindeckungen mit hoher Spannweite in selbsttragender Ausführung möglich. Ein typischer Anwendungsfall besteht darin, daß 5 Stützrippen auf 600 mm Spannweite angeordnet sind.

Claims (3)

  1. Lichtelement für geschäumte Polyurethan-Dachelemente, insbesondere in Trapezquerschnittsform, mit einer Vertiefung in Form einer Stufe an einer zur Plattenmitte hin abfallenden Stützrippe des am Anschlußende A angeordneten Trapezelementes und mit einer Dichtung an dem gegenüberliegenden Anschlußende B, dadurch gekennzeichnet, daß das Lichtelement als dreischichtiges, tragendes Bauelement mit formschlüssigen Verbindungen zu den benachbarten Elementen ausgebildet ist, wobei sich am Anschlußende A zum benachbarten Lichtelement oder anderen Dachplatten eine Vertiefung (4) an der oberen Kante der zur Mitte hin abfallenden Trapezwand (5) befindet, die zwischen zwei benachbarten Elementen als Kammer (14) ausgebildet ist,
    und wobei an der gegenüberliegenden Anschlußseite B am unteren Ende eines trapezförmig übergreifenden Hakens (7) und der zur Plattenmitte hin abfallenden Trapezwand (6) eine elastische Dichtlippe (8) angeordnet ist.
  2. Lichtelement nach Anspruch 1, dadurch gekennzeichnet, daß die Dichtlippe (15) an einer Einschnürung (19) des Anschlußendes B angeformt ist.
  3. Lichtelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die eine Wand der Kammer (14) von dem übergreifenden Haken (13) gebildet wird.
EP90125178A 1990-01-16 1990-12-21 Lichtelement für geschäumte Polyurethan-Dachelemente Expired - Lifetime EP0437810B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4000955A DE4000955C2 (de) 1990-01-16 1990-01-16 Lichtelement für geschäumte Polyurethan-Dachelemente
DE4000955 1990-01-16

Publications (2)

Publication Number Publication Date
EP0437810A1 EP0437810A1 (de) 1991-07-24
EP0437810B1 true EP0437810B1 (de) 1993-07-21

Family

ID=6398089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125178A Expired - Lifetime EP0437810B1 (de) 1990-01-16 1990-12-21 Lichtelement für geschäumte Polyurethan-Dachelemente

Country Status (5)

Country Link
EP (1) EP0437810B1 (de)
AT (1) ATE91743T1 (de)
DE (2) DE4000955C2 (de)
DK (1) DK0437810T3 (de)
ES (1) ES2044393T3 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9115940U1 (de) * 1991-12-21 1992-02-20 Roehm Gmbh, 6100 Darmstadt, De
GB9719612D0 (en) * 1997-09-09 1997-11-19 Ultraframe Plc Building elements
GB2362180A (en) * 1999-12-17 2001-11-14 Xtralite Ind Rooflights Ltd Roofing panel incorporating an indented, light transmitting area
US6931796B2 (en) 2003-02-13 2005-08-23 General Electric Extruded transparent/translucent sheet for roof structures
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
DE202011003120U1 (de) * 2010-10-25 2011-07-27 Rodeca Gmbh Bauelement
FR2976843B1 (fr) * 2011-06-27 2013-07-12 Ds Smith Kaysersberg Panneau en matiere thermoplastique avec joint d'etancheite integre
ES1139956Y (es) * 2015-04-30 2015-09-03 Mayoral Jorge Guzman Panel modular de policarbonato para cubiertas en edificaciones

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7425608U (de) * 1974-11-07 Alcan Aluminiumwerke Gmbh Rollgeformte, plattenförmige Profile zur Verkleidung von Flächen, wie Dächern oder Wänden
DE1814505A1 (de) * 1968-12-13 1970-07-02 Armco Steel Corp Platte oder Tafel mit Falzraendern
SE452898B (sv) * 1981-06-05 1987-12-21 Graenges Aluminium Ab Teckplat for bekledning av yttertak och ytterveggar pa byggnader
IT8122225V0 (it) * 1981-06-30 1981-06-30 Cerana B & C S A S Lastra alveolare per la copertura di serre, fabbricati industriali od altro.
DE3237331A1 (de) * 1982-10-08 1984-04-12 Bemo Elementbau AG, 8134 Adliswil Dachabdeckungs- oder wandverkleidungselement
GB2147926A (en) * 1983-10-14 1985-05-22 Brooks Accrington Limited Cladding panel
GB2177134B (en) * 1985-07-04 1988-07-20 Ariel Plastics Ltd Improvements relating to corrugated roofs with translucent areas
DE8709349U1 (de) * 1987-07-07 1987-08-20 Helge, Hans Heinz, Dison, Be
DE3832995A1 (de) * 1987-10-06 1989-11-23 Herbert Buessgen Zweischaliges plattenelement fuer trapezblechdaecher

Also Published As

Publication number Publication date
ES2044393T3 (es) 1994-01-01
ATE91743T1 (de) 1993-08-15
DE4000955A1 (de) 1991-07-18
DE4000955C2 (de) 2002-01-10
EP0437810A1 (de) 1991-07-24
DK0437810T3 (da) 1993-10-11
DE59002031D1 (de) 1993-08-26

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