EP2331766B1 - Système de toit modulaire et dispositif d'assemblage associé - Google Patents

Système de toit modulaire et dispositif d'assemblage associé Download PDF

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Publication number
EP2331766B1
EP2331766B1 EP09804143.7A EP09804143A EP2331766B1 EP 2331766 B1 EP2331766 B1 EP 2331766B1 EP 09804143 A EP09804143 A EP 09804143A EP 2331766 B1 EP2331766 B1 EP 2331766B1
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EP
European Patent Office
Prior art keywords
bracket
adjacent
stretch
panels
pitch
Prior art date
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Active
Application number
EP09804143.7A
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German (de)
English (en)
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EP2331766A2 (fr
Inventor
Fabiana Panella
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.)
KME Italy SpA
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KME Italy SpA
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Publication date
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Publication of EP2331766A2 publication Critical patent/EP2331766A2/fr
Application granted granted Critical
Publication of EP2331766B1 publication Critical patent/EP2331766B1/fr
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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
    • E04D3/36—Connecting; Fastening
    • E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
    • E04D3/362—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets by locking the edge of one slab or sheet within the profiled marginal portion of the adjacent slab or sheet, e.g. using separate connecting elements
    • 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
    • E04D3/36—Connecting; Fastening
    • E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
    • E04D3/363—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets with snap action

Definitions

  • the present invention relates to a modular roofing system and to a jointing device associated thereto.
  • roofing made of metal sheet is obtained by jointing together the adjacent longitudinal edges of adjacent metal-sheet panels proceeding in the direction of extension of the pitch of the roof to be covered (i.e., in the direction that goes from the ridge of the roof to its bottom edge).
  • Such a joint can be obtained by simple bending by superposition of the adjacent edges, carried out in sit via a purposely designed machinery, or else, according to EP1489245 , by means of a proper jointing device defined by stiff brackets, which opposite edges of two adjacent panels, coined with a complementary profile, are rigidly clinched on, by partial superposition.
  • the roofing system known from EP1489245 is not, however, satisfactory: it does not enable easy dismantling of the roofing for carrying out maintenance interventions; it can give rise to infiltrations of damp; and, above all, it constrains the aesthetics of the joint to the profile of the head of the stiff brackets that support the joint of the bent sides of the sheet panels.
  • US-A-4602469 shows a non satisfactory solution.
  • DE 7708919 U1 discloses a roofing system according to the state of the art.
  • an aim of the present invention is to provide a roofing system alternative to the known one, which can be completely and easily dismantled and reassembled, the aesthetic appearance of which is not constrained to a predefined profile, and which guarantees in any case a good-quality seal against any infiltration of damp.
  • a metal-sheet roofing system is hence provided, as defined in Claim 1.
  • the roofing system comprises a plurality of panels made of a metal sheet and arranged in use adjacent to one another in a direction of extension of a pitch of the roof, each with a first longitudinal side of its own, parallel to the direction of extension of the pitch, connected to an opposite second longitudinal side of the immediately adjacent panel by using a dismantleable jointing device.
  • the latter comprises the first and second adjacent longitudinal sides of each pair of adjacent panels, at least one bracket coupled to the adjacent longitudinal sides, and means for fastening of the bracket to the pitch of the roof.
  • the at least one bracket is supported laterally in cantilever fashion by the fastening means so as to define towards the pitch an undercut, and at least one of said first and second sides is made so as to be elastically deformable for engaging in use by snap action, with an engagement portion of its own, said at least one bracket in at least one plurality of different points under said undercut.
  • the first and second adjacent sides of each pair of adjacent panels have a complementary profile and are both coupled together by superposition, under the undercut, at least in a position corresponding to the portion of engagement by snap action with the bracket.
  • the dismantleable jointing device comprises, for each pair of adjacent sides to be connected, a plurality of brackets engaged by snap action in the aforesaid plurality of points, each bracket in a different point, by said at least one of said first and second adjacent sides of each pair of adjacent panels so as to prevent having necessarily brackets of a length, in the direction of extension of the pitch of the roof, comparable with that of extension of the longitudinal sides to be jointed.
  • each bracket has a portion for fastening to the pitch and a clamping portion for clamping the first and second sides of the panels, which has a concave profile towards the pitch and which extends in cantilever fashion from the fattening portion, in a direction perpendicular to the first and second sides of the panels.
  • the first longitudinal side of each panel is delimited by an edge that is bent to form an L on the side opposite to the pitch and that can be inserted in use in the concavity of the clamping portion, whilst the second longitudinal side of each panel is delimited by a box section open on the side that in use faces the pitch, shaped so as to define a longitudinal housing designed to contain inside it each bracket co-operating therewith.
  • the box section is then delimited by a terminal edge bent towards the inside of the box section itself for a length such as to mate in use under the clamping portion of the bracket, which delimits the aforesaid undercut, so as to be pinched between this and the first edge of the adjacent panel, which is aligned co-planar to the fastening portion of the bracket.
  • a joint which covers completely the brackets and their portions for fastening to the roof, hiding them from view and protecting them from adverse weather conditions, a joint that moreover prevents any infiltration of damp from the outside in so far as, even if it were to get over the area coupled by superposition of the two adjacent sides of each panel, which forms in itself a labyrinth seal, such an infiltration of damp would be stopped by the L-shaped bent edge of the first side.
  • the aesthetic appearance of the joint depends exclusively upon the shape that is imparted on the box-section edge of the second side of each panel, which, provided that a box-section element is formed open towards the pitch, can then have, in cross section, any profile and, hence, define along the pitch of the roof, ribbings of a shape and dimensions that can be each time chosen by the designer according to the requirements (for example, with a rectangular profile, a profile shaped like an isosceles trapezium, or like an isosceles trapezium set upside down - i.e., with the major base set on the side opposite to the pitch - or like scalene trapezium, or mushroom-shaped as in EP1489245 , etc.), without thereby altering the functionality of the joint.
  • a roofing system for a roof 2 comprising a plurality of panels 3 made of a metal sheet, typically copper or an alloy thereof, and arranged in use adjacent to one another in a direction E ( Figure 1 ) of extension of a pitch 4 of the roof 2, each with a first longitudinal side 10 thereof, arranged parallel to the direction of extension E of the pitch 4, connected to an opposite second longitudinal side 11 of the immediately adjacent panel 3 by means of a dismantleable jointing device 14 ( Figure 2 ).
  • the device 14 comprises the first and second longitudinal adjacent sides 10, 11 of each pair of adjacent panels 3, at least one bracket 15 coupled with the longitudinal adjacent sides 10, 11, and fastening means 16 for fastening the bracket 15 to the pitch 4 of the roof 2.
  • the at least one bracket 15 is supported laterally in cantilever fashion by the fastening means 16 so as to define towards the pitch an undercut 150, and at least one of the sides 10, 11, in the case in point the side 11, as will be seen in greater detail in what follows, is made so as to be elastically deformable for engaging in use by snap action, with an engagement portion 46 of its own, the at least one bracket 15 in at least one plurality of different points P1, P2, ..., Pn beneath the undercut 150.
  • each panel 3 has a matched profile
  • the adjacent sides 10, 11 of two adjacent panels 3 are coupled to one another by superposition, under the undercut 150, at least in a position corresponding to the portion 46 of engagement by snap action with the bracket 15, preferably throughout their length, or else at least at respective portions thereof, corresponding to the points P1, P2.
  • the roofing system 1 illustrated by way of non-limiting example in any case presents devices 14 for jointing adjacent panels 3 together, each device comprising not a single bracket 15, of a length, in the direction E, comparable to that of extension of the sides 10, 11, but a plurality of brackets 15, each of dimensions in the direction E limited to what is sufficient to define a point of engagement by snap action P1, P2, ..., Pn with the adjacent sides 10, 11 of two adjacent panels 3, said brackets 15 being arranged in the direction E aligned to one another and spaced at intervals apart, which may be regular or otherwise, in such a way that each bracket 15 is designed to engage by snap action the adjacent sides 10, 11 in a different point P1, P2, so as to ensure fastening of the panels 3 to the roof 2 along the entire pitch 4.
  • each bracket 15 has a portion 20 for fastening to the pitch 4, and a portion 21 for clamping the first and second sides 10, 11 of the panels 3, which has a concave profile towards the pitch 4 and which extends in cantilever fashion from the fastening portion 20 in a direction perpendicular to the first and second sides 10, 11 of the panels 3 so as to define towards the pitch 4 the aforesaid undercut 150.
  • the fastening portion 20 is shaped as a flat wing or plane flange, whilst the clamping portion 21 has a complex shape, which can be generally defined as "goose necked”.
  • the clamping portion 21 comprises a first stretch 22, immediately adjacent to the fastening portion 20, bent out of the plane of lie of the fastening portion 20 so as to present, in a plane perpendicular to the first and second sides 10, 11 of the panels 3 and to the direction E, i.e., in the plane of the sheet of Figure 3 , a U shape flared on the side facing the fastening portion 20, i.e., in use towards the pitch 4, so as to delimit on the side facing the latter, a channel-shaped cavity 23 that extends parallel to the adjacent sides 10, 11 of the panels 3.
  • the clamping portion 21 further comprises: a second stretch 24 defined by a flat wing or plane flange arranged on one side of an inlet opening 25 of the cavity 23 delimited by the first stretch 22, in the case in point on the side opposite to the fastening portion 20; and a third stretch 26 bent out of the plane of lie of the stretch 24 in a direction such as to move away from the fastening portion 20 and so as to form with the second stretch 24, and towards the first stretch 22, an obtuse angle (i.e., greater than 90°).
  • a second stretch 24 defined by a flat wing or plane flange arranged on one side of an inlet opening 25 of the cavity 23 delimited by the first stretch 22, in the case in point on the side opposite to the fastening portion 20
  • a third stretch 26 bent out of the plane of lie of the stretch 24 in a direction such as to move away from the fastening portion 20 and so as to form with the second stretch 24, and towards the first stretch 22, an obtuse angle (i.e., greater than 90
  • the second stretch 24 of the clamping portion 21, defined by a plane flange is parallel to the plane flange defining the fastening portion 20, but is set in a different plane, at a pre-set distance d from the fastening portion 20, in the direction of U-shaped bending of the first stretch 22 of the clamping portion 21, i.e., in the direction perpendicular to the planes of lie of the plane flanges 20 and 24.
  • the brackets 15 can be directly fastened so that they are fixed with respect to the pitch 4 against an external surface 27 thereof or else, preferably, at a certain distance therefrom.
  • the means 16 for fastening the brackets 15 to the pitch 4 comprise a wooden boarding 28, continuous or else defined by boards 29 oriented perpendicular to the direction E, and arranged resting on the pitch 4, spaced at intervals apart in the direction E, a boarding 28 which is in each case fastened fixedly with respect to the pitch 4 and against which the fastening portion 20 of each bracket 15 is in use constrained by removable fastening means, for example, constituted by screws 30.
  • each second longitudinal side 11 of the panels 3 is delimited by a box section 44 open on the side that in use faces the pitch 4, i.e., towards the bottom face 41 of the panel 3, and shaped so as to define in use a channel-shaped longitudinal housing 45 designed to contain inside it any bracket 15 co-operating with two adjacent sides 10, 11, in the case in point all the brackets 15 aligned set at intervals apart on the pitch 4 in the direction E in a position corresponding to each edge 11.
  • the box section 44 is shaped in such a way that its terminal edge 46 will be arranged parallel to the plane of lie of the panels 3, i.e., to the face 41, but slightly set back with respect thereto, in the direction of the U-shaped bending of the stretch 22, by an amount substantially equal to the thickness S of the sheet of which the panels 3 are made.
  • the box section 44 is shaped so as to bestow thereon a pre-set flexibility in the elastic range, in such a way that it can be "opened” elastically during the operations of assembly and then assume again its original shape.
  • brackets 15 In use, once the brackets 15 have been fastened to the boarding 28, in the position illustrated in Figures 1 and 2 , the panels 3 are arranged against the boarding 28, by first inserting the edge 40 within the cavities 23 of the brackets 15 aligned in a position corresponding to the side 10, keeping the panels themselves slightly inclined. This operation is facilitated by the presence of the oblique stretch 26, which serves as "lead-in" and by the play defined by the distance d .
  • a minor elastic deformation can affect, finally, also the clamping portion 21 in the case where the distance d , instead of being exactly equal to twice S is slightly smaller, so as to create in use a slight interference between superimposed adjacent sides 10, 11 and brackets 15, thus enabling the brackets 15 to exert a permanent pressure against the panels 3, which prevents any possible accidental displacement thereof in use, for example due to wind, snow, or maintenance operators walking on the roof 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (6)

  1. Système de toiture (1) pour un toit (2) comprenant une pluralité de panneaux (3) fabriqués en tôle métallique et disposés, pendant l'utilisation, en position adjacente les uns aux autres, chacun présentant un premier côté longitudinal (10) raccordé à un deuxième côté longitudinal opposé (11) du panneau immédiatement adjacent au moyen d'un dispositif d'assemblage amovible (14), dans une direction d'étendue (E) d'une pente (4) du toit, ledit dispositif d'assemblage comprenant les premier et deuxième côtés adjacents longitudinaux (10, 11) de chaque paire de panneaux adjacents, au moins une console (15) couplée auxdits côtés longitudinaux adjacents (10, 11) et des moyens de fixation (16) de la console (15) au toit ; ladite au moins une console (15) étant conçue pour être supportée latéralement en porte-à-faux par les moyens de fixation (16) de manière à définir une contre-dépouille (150) qui, pendant l'utilisation, est tournée vers la pente (4), et au moins l'un (11) desdits premier et deuxième côtés (10, 11) de chaque paire de panneaux adjacents (3) étant fabriqué de manière à pouvoir être déformé élastiquement de manière à s'engager par encliquetage, au moyen d'une portion d'engagement (46) de celui-ci, avec ladite au moins une console (15), dans au moins une pluralité de points différents (P1, P2,... Pn) sous ladite contre-dépouille (150) ; lesdits premier et deuxième côtés adjacents (10, 11) de chaque paire de panneaux adjacents (3) présentant un profil complémentaire et étant couplés en se chevauchant mutuellement en-dessous de la contre-dépouille (150), au moins en correspondance avec la portion d'engagement par encliquetage (46), avec la console (15) ; une portion de fixation (20) étant en forme d'aile plate, tandis qu'une portion de serrage (21) présente une forme complexe en col de cygne et comprend : une première étendue (22) immédiatement adjacente à la portion de fixation (20), repliée à l'écart d'un plan de pose de la portion de fixation (20) de manière à présenter, dans un plan perpendiculaire aux premier et deuxième côtés (10, 11) des panneaux, une forme en U évasée vers la portion de fixation (20) de manière à délimiter, vers cette dernière, une cavité (23) qui s'étend parallèlement auxdits premier et deuxième côtés adjacents (10, 11) des panneaux ; et une deuxième étendue (24) définie par une aile plate disposée sur le côté d'une ouverture d'entrée (25) de ladite cavité (23) délimitée par la première étendue (22) ; et ledit deuxième côté longitudinal (11) étant délimité par un profil en forme de caisson (44) ouvert sur le côté tourné vers la pente (4) pendant l'utilisation, de manière à pouvoir être déformé élastiquement, et formé de manière à définir un boîtier longitudinal (45) prévu pour contenir chaque console (15) coopérant avec celui-ci ; où, en combinaison :
    - le premier côté longitudinal (10) de chaque panneau est délimité par un bord plié (40) qui est en forme de L sur le côté opposé à celui tourné vers la pente (4) pendant l'utilisation et qui peut être inséré pendant l'utilisation dans ladite cavité (23) délimitée par la première étendue (22) de la portion de serrage (21) et définissant ladite concavité de ladite portion de serrage tournée vers la pente pendant l'utilisation ; et
    - ledit profil en forme de caisson (44) de chaque deuxième côté longitudinal (11) est délimité par un bord terminal (46) plié vers l'intérieur du profil en forme de caisson proprement dit sur une longueur permettant de le coupler, pendant l'utilisation, sous la deuxième étendue (24) de la portion de serrage (21) de la console (15) de manière à être saisi entre cette dernière et le premier côté (10) du panneau adjacent,
    caractérisé en ce que ledit bord terminal (46) est aligné et coplanaire avec la portion de fixation (20) de la console (15).
  2. Système de toiture selon la revendication 1, caractérisé en ce que ledit dispositif d'assemblage amovible (14) comprend une pluralité de consoles déformables élastiquement (15) engagées par encliquetage avec ledit au moins un (11) desdits premier et deuxième côtés adjacents (10, 11) de chaque paire de panneaux adjacents (3) dans ladite pluralité de points, chaque console étant dans un point différent (P1, P2).
  3. Système de toiture selon la revendication 1 ou 2, caractérisé en ce que chaque dite console (15) présente une portion de fixation (20) au toit et une portion de serrage (21) pour les premier et deuxième côtés (10, 11) des panneaux, la portion de serrage (21) ayant un profil concave faisant face, pendant l'utilisation, à la pente (4) et laquelle portion de serrage (21) s'étend en surplomb depuis la portion de fixation (20) dans une direction perpendiculaire aux premier et deuxième côtés des panneaux, de manière à définir ladite contre-dépouille (150).
  4. Système de toiture selon la revendication 3, caractérisé en ce que ladite portion de serrage (21) comprend en outre : une troisième étendue (26) pliée dans une direction de manière à s'écarter de la portion de fixation (20) et de manière à former un angle obtus avec la deuxième étendue (24) et vers la première étendue (22).
  5. Système de toiture selon la revendication 1, caractérisé en ce que ladite deuxième étendue (24) de la portion de serrage (21), définie par une aile plate, est parallèle à l'aile plate définissant la portion de fixation (20), mais est disposée dans un plan différent, à une distance prédéterminée (d) de la portion de fixation (20), dans la direction de pliage en forme de U de la première étendue (22) de la portion de serrage (21), de manière à délimiter ladite contre-dépouille (150).
  6. Système de toiture selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits moyens de fixation (16) de ladite au moins une console (15) au toit comportent un platelage en bois (28) fixé intégralement au toit et contre lequel est fixée la portion de fixation (20) de la console (15) par des moyens de fixation amovibles, par exemple des vis (30).
EP09804143.7A 2008-08-21 2009-08-19 Système de toit modulaire et dispositif d'assemblage associé Active EP2331766B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2008A000642A IT1391854B1 (it) 2008-08-21 2008-08-21 Sistema modulare di copertura per tetti e dispositivo di giunzione associato
PCT/IB2009/006599 WO2010020866A2 (fr) 2008-08-21 2009-08-19 Système de toit modulaire et dispositif d'assemblage associé

Publications (2)

Publication Number Publication Date
EP2331766A2 EP2331766A2 (fr) 2011-06-15
EP2331766B1 true EP2331766B1 (fr) 2017-07-05

Family

ID=40473683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09804143.7A Active EP2331766B1 (fr) 2008-08-21 2009-08-19 Système de toit modulaire et dispositif d'assemblage associé

Country Status (4)

Country Link
EP (1) EP2331766B1 (fr)
CN (1) CN102257225B (fr)
IT (1) IT1391854B1 (fr)
WO (1) WO2010020866A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20130323A1 (it) * 2013-11-26 2015-05-27 Fabris Srl Copertura per edifici
JP6606324B2 (ja) * 2014-10-30 2019-11-13 日鉄鋼板株式会社 屋根構造及び屋根の施工方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7708919U1 (de) * 1977-03-22 1977-08-25 Bengt Petersson New Products Investment Ab, Goeteborg (Schweden) Dachbelagbahn
US4602469A (en) * 1984-06-15 1986-07-29 Nuckel Jr William H Roofing/siding system and lock seam therefor
CN1180125A (zh) * 1996-08-30 1998-04-29 佳能株式会社 横向铺设的屋顶及其安装方法
JP3787560B2 (ja) * 2003-05-26 2006-06-21 キヤノン株式会社 横葺き屋根及びその施工方法
US7707791B2 (en) * 2004-03-05 2010-05-04 Reuven Peleg Roofing method for self supporting roofing plate

Also Published As

Publication number Publication date
WO2010020866A3 (fr) 2010-06-03
WO2010020866A8 (fr) 2010-11-11
CN102257225A (zh) 2011-11-23
IT1391854B1 (it) 2012-01-27
ITTO20080642A1 (it) 2010-02-22
EP2331766A2 (fr) 2011-06-15
CN102257225B (zh) 2014-04-23
WO2010020866A2 (fr) 2010-02-25

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