IT201800009467A1 - MULTILAYER PANEL WITH TERMINAL REINFORCEMENT - Google Patents

MULTILAYER PANEL WITH TERMINAL REINFORCEMENT Download PDF

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Publication number
IT201800009467A1
IT201800009467A1 IT102018000009467A IT201800009467A IT201800009467A1 IT 201800009467 A1 IT201800009467 A1 IT 201800009467A1 IT 102018000009467 A IT102018000009467 A IT 102018000009467A IT 201800009467 A IT201800009467 A IT 201800009467A IT 201800009467 A1 IT201800009467 A1 IT 201800009467A1
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IT
Italy
Prior art keywords
sheets
panel
multilayer panel
roofs
straight
Prior art date
Application number
IT102018000009467A
Other languages
Italian (it)
Inventor
Sergio Carbonara
Original Assignee
Medacciai Srl
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Priority to IT102018000009467A priority Critical patent/IT201800009467A1/en
Publication of IT201800009467A1 publication Critical patent/IT201800009467A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
    • E04B7/22—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating 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
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • 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
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
    • 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
    • E04C2/32—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 formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E04C2/322—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 formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with parallel corrugations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/108—Rockwool fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0228—Aromatic vinyl resin, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B32B2419/06—Roofs, roof membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Textile Engineering (AREA)
  • Panels For Use In Building Construction (AREA)

Description

Titolo Title

PANNELLO MULTISTRATO CON RINLORZO TERMINALE PANNELLO MULTISTRATO CON RINFORZO TERMINALE MULTILAYER PANEL WITH TERMINAL REINFORCEMENT MULTILAYER PANEL WITH TERMINAL REINFORCEMENT

La presente domanda di brevetto per invenzione industriale riguarda un pannello multistrato dotato di rinforzi terminali per aumentarne la capacità di carico a parità di luce, oppure aumentarne la luce utile a pari capacità di carico. The present patent application for industrial invention relates to a multilayer panel equipped with terminal reinforcements to increase its load capacity for the same light, or to increase its useful light for the same load capacity.

Per pannello multistrato si intende un pannello, noto allo stato dell’arte, formato da una lamiera interna, uno strato isolante ed una lamiera esterna tra loro incollati. I modi di realizzazione noti allo stato dell’arte una o entrambe le lamiere sono del tipo grecato. Ovviamente lo strato di isolante è realizzato della forma idonea a poter essere incollato con le lamiere. Questi pannelli sono comunemente utilizzati per la realizzazione di pareti o coperture, rette o curve degli edifici, e sono generalmente installati direttamente o indirettamente alla struttura portante mediante fissaggi meccanici. By multilayer panel we mean a panel, known in the state of the art, formed by an internal sheet, an insulating layer and an external sheet glued together. The embodiments known in the state of the art, one or both sheets are of the corrugated type. Obviously, the insulating layer is made of a suitable shape to be able to be glued with the sheets. These panels are commonly used for the construction of straight or curved walls or roofs of buildings, and are generally installed directly or indirectly to the load-bearing structure by means of mechanical fixings.

Il materiale comunemente utilizzato per la lamiera interna è l’acciaio, mentre all’esterno è noto l’utilizzo sia di acciaio che di alluminio. Entrambe le lamiere vengono comunemente realizzate con spessori compresi tra 4 e 8 decimi di millimetro, variabili in funzione della luce utile e del carico di progetto della copertura. Problema tecnico The material commonly used for the internal sheet is steel, while the use of both steel and aluminum is known on the outside. Both sheets are commonly made with thicknesses between 4 and 8 tenths of a millimeter, which vary according to the useful span and the design load of the roof. Technical problem

Uno dei problemi tecnici incontrati con i pannelli noti allo stato dell’arte è la limitazione sia del carico massimo sopportabile dal pannello che della luce (intesa come distanza tra gli appoggi su cui viene ancorato il pannello). One of the technical problems encountered with panels known to the state of the art is the limitation of both the maximum load that the panel can bear and the light (understood as the distance between the supports on which the panel is anchored).

A puro titolo di esempio, senza pretesa che ciò sia esaustivo dell’intero panorama di prodotti noti allo stato dell’arte, si citano di seguito i dati tecnici di due serie di pannelli grecati commercialmente disponibili. By way of example, without claiming that this is exhaustive of the entire panorama of products known to the state of the art, the technical data of two series of commercially available corrugated panels are cited below.

Un primo produttore (Italpannelli) produce una serie di pannelli (Penta R6) in cui la lamiera interna è piana e la lamiera esterna è grecata, con isolante di spessore compreso tra 40 e 100 mm. A first manufacturer (Italpannelli) produces a series of panels (Penta R6) in which the internal sheet is flat and the external sheet is corrugated, with insulation thickness between 40 and 100 mm.

A parità di luce utile, il carico ammissibile aumenta evidentemente all’aumentare dello spessore dell’isolante (non perché lo stesso abbia una resistenza meccanica apprezzabile, ma perché distanzia le due lamiere aumentando il modulo di inerzia complessivo della sezione) che fa aumentare lo spessore totale del pannello. L’aumento di carico utile ottenibile a fronte dell’utilizzo di lamiere di spessore maggiore è tuttavia limitato: ad esempio con luci di 5 metri e lamiera interna in acciaio di spessore pari a 5 decimi di millimetro, l’incremento dello spessore della lamiera esterna (anch’essa in acciaio) da 5 a 8 decimi (incremento pari al 60%) produce un incremento del carico utile di appena il 25% circa. Il carico utile passa infatti da 160 a 200 kg/mq per spessore di isolante pari a 100 mm e da 65 a 80 kg/mq per spessore di isolante di 50 mm. Un altro costruttore (Rexcop) invece indica la possibilità per i pannelli della serie Archimede di avere luci di 5 metri solo a partire da spessori dell’isolante di 120 mm, con utilizzo di lamiere in acciaio di 4 decimi di millimetro all’interno e di 7 decimi di millimetro all’esterno. With the same useful span, the admissible load obviously increases as the thickness of the insulation increases (not because it has an appreciable mechanical resistance, but because it distances the two sheets by increasing the overall inertia module of the section) which increases the thickness total of the panel. However, the increase in payload that can be obtained by using thicker plates is limited: for example, with spans of 5 meters and internal steel plate with a thickness of 5 tenths of a millimeter, the increase in the thickness of the external plate (also in steel) from 5 to 8 tenths (an increase of 60%) produces an increase in the payload of just about 25%. The useful load in fact goes from 160 to 200 kg / m2 for a thickness of insulation equal to 100 mm and from 65 to 80 kg / m2 for an insulation thickness of 50 mm. Another manufacturer (Rexcop) instead indicates the possibility for the Archimede series panels to have spans of 5 meters only starting from insulation thicknesses of 120 mm, with the use of steel sheets of 4 tenths of a millimeter inside and 7 tenths of a millimeter on the outside.

Ferme restando le altre numerose combinazioni ammissibili di spessori, carichi utili e luci tra i due appoggi, in linea generale si può affermare che per aumentare la portata o la luce utile di un pannello viene aumentato lo spessore di una delle due lamiere, ottenendo tuttavia dei risultati modesti: ad un determinato incremento dello spessore della lamiera utilizzata non corrisponde, in proporzione, il medesimo incremento di carico utile, ma un incremento molto inferiore. Without prejudice to the other numerous permissible combinations of thicknesses, useful loads and gaps between the two supports, in general it can be stated that to increase the capacity or the useful span of a panel, the thickness of one of the two sheets is increased, nevertheless obtaining modest results: a certain increase in the thickness of the sheet metal used does not correspond, in proportion, to the same increase in payload, but a much smaller increase.

Scopo dell’invenzione Purpose of the invention

Scopo del trovato oggetto della presente invenzione è pertanto quello di fornire un pannello multistrato per la realizzazione di superfici rette o curve che superi i limiti dei modi di realizzazione noti allo stato dell’arte. The purpose of the invention object of the present invention is therefore to provide a multilayer panel for the creation of straight or curved surfaces that exceeds the limits of the embodiments known in the state of the art.

In particolare, scopo della presente invenzione è quello di fornire un pannello multistrato che sia in grado, a parità di spessore di isolante e di spessore e materiale delle lamiere, di offrire una maggiore resistenza strutturale, con ciò intendendo una maggiore luce ammissibile a parità di carico o, equivalentemente, una maggiore capacità di carico a parità di luce tra gli appoggi. In particular, the object of the present invention is to provide a multilayer panel that is able, with the same thickness of insulation and thickness and material of the sheets, to offer greater structural strength, meaning a greater admissible span with the same load or, equivalently, a greater load capacity with the same span between the supports.

Breve descrizione Short description

Il trovato realizza gli scopi prefissati, in quanto trattasi di un pannello multistrato (1) per la realizzazione di pareti o coperture, rette o curve, degli edifici, comprendente due lamiere (10, 20), in corrispondenza delle facce esterne tra le quali è interposto uno strato di isolante (30) caratterizzato dal fatto di comprendere in oltre due lamierine di rinforzo (40) ubicate alle due estremità longitudinali del pannello, ed interposte tra il lamierino inferiore (20) e l’isolante (30). The invention achieves the intended purposes, since it is a multilayer panel (1) for the construction of straight or curved walls or roofs of buildings, comprising two sheets (10, 20), in correspondence with the external faces between which it is interposed a layer of insulating material (30) characterized in that it comprises in addition two reinforcing sheets (40) located at the two longitudinal ends of the panel, and interposed between the lower sheet (20) and the insulation (30).

Descrizione dettagliata dell’invenzione Detailed description of the invention

Questi ed altri vantaggi saranno evidenti dalla descrizione dettagliata del trovato, che sarà di seguito con riferimento alle figure da 1 a 6 allegate, che mostrano varie viste di un modo di realizzazione principale dell’invenzione. These and other advantages will be evident from the detailed description of the invention, which will be referred to below with reference to the attached figures 1 to 6, which show various views of a main embodiment of the invention.

L’invenzione nasce dall’osservazione degli odierni inventori che rilevano che, all’aumentare del carico o della luce, le lamiere si asolano o deformano in corrispondenza dei punti di fissaggio alla struttura portante. The invention was born from the observation of today's inventors who note that, as the load or light increases, the sheets are slotted or deformed at the points of attachment to the supporting structure.

Al fine di aumentare la portata dei pannelli oltre i limiti attuali, o di aumentare le luci di appoggio, gli odierni inventori hanno perciò realizzato e testato alcuni modi di realizzazione di pannelli comprendenti un rinforzo localizzato in corrispondenza delle parti terminali del pannello, verificando che in effetti la presenza di un rinforzo terminale aumenta il carico utile a parità di luce, evitando la deformazione delle lamiere. In order to increase the capacity of the panels beyond the current limits, or to increase the support spans, the present inventors have therefore made and tested some ways of making panels comprising a reinforcement localized in correspondence with the terminal parts of the panel, verifying that in effects the presence of a terminal reinforcement increases the payload with the same light, avoiding the deformation of the sheets.

Come mostrato in figura 6, il pannello (1) secondo l’invenzione comprende due lamiere nelle facce esterne (10, 20) tra le quali è interposto uno strato di isolante (30). As shown in figure 6, the panel (1) according to the invention comprises two sheets in the external faces (10, 20) between which a layer of insulation (30) is interposed.

Il pannello (1) secondo l’invenzione è caratterizzato dalla presenza di due lamierine di rinforzo (40) ubicate alle due estremità longitudinali del pannello, ed interposte tra il lamierino inferiore (20) e l’isolante. A fine di chiarezza si specifica che per lamiera inferiore (2) si intende il lamierino che, con il pannello installato, è rivolto verso il basso e, quindi, verso l’interno dell’edificio. The panel (1) according to the invention is characterized by the presence of two reinforcement sheets (40) located at the two longitudinal ends of the panel, and interposed between the lower sheet (20) and the insulation. For the sake of clarity, it is specified that the lower sheet (2) refers to the sheet metal which, with the panel installed, faces downwards and, therefore, towards the interior of the building.

Sempre a fini di chiarezza si specifica che per estremità longitudinali del pannello si intendono le estremità ortogonali alla direzione delle greche delle lamiere, configurate per essere ancorate agli appoggi (o comunque alle strutture) destinati a sostenere la copertura. Again for the sake of clarity, it is specified that the longitudinal ends of the panel mean the ends orthogonal to the direction of the corrugations of the sheets, configured to be anchored to the supports (or in any case to the structures) intended to support the roof.

Gli elementi appena descritti sono incollati nell’ordine mostrato in figura e, al termine del processo produttivo, l’aspetto esteriore del pannello è identico a quello dei pannelli noti allo stato dell’arte. The elements just described are glued in the order shown in the figure and, at the end of the production process, the external appearance of the panel is identical to that of the panels known to the state of the art.

E’ evidente che il pannello appena descritto potrà essere realizzato, senza uscire dagli scopi dell’invenzione, con lamierini sia in acciaio che in alluminio di vario spessore, e che l’incremento prestazionale ottenuto è da intendersi rispetto ad un equivalente pannello non dotato dei rinforzi longitudinali (40). It is evident that the panel just described can be made, without departing from the purposes of the invention, with sheets both in steel and in aluminum of various thicknesses, and that the increase in performance obtained is to be understood with respect to an equivalent panel not equipped with the longitudinal reinforcements (40).

Secondo un modo di realizzazione preferenziale, i rinforzi longitudinali (40) hanno la stessa sagoma e larghezza dei lamierini interi, una lunghezza compresa tra 200 e 500mm ed uno spessore compreso tra 0,4 e 1,0 mm. According to a preferential embodiment, the longitudinal reinforcements (40) have the same shape and width as the whole laminations, a length between 200 and 500mm and a thickness between 0.4 and 1.0 mm.

Convenientemente possono essere utilizzate lamiere esterne (10, 20) di materiali e spessori già utilizzati allo stato dell’arte, preferibilmente in acciaio o alluminio con spessore compreso tra 0,4 e 1,0 mm. Conveniently, external sheets (10, 20) of materials and thicknesses already used in the state of the art can be used, preferably in steel or aluminum with a thickness between 0.4 and 1.0 mm.

Anche per lo strato di isolante (30), possono convenientemente essere utilizzati materiali e spessori già utilizzati allo stato dell’arte, quali a titolo di esempio EPS, Poliuretano o Lana di roccia e spessori compresi tra 4 e 20 cm. Also for the layer of insulation (30), materials and thicknesses already used in the state of the art can be conveniently used, such as, for example, EPS, Polyurethane or Rock wool and thicknesses between 4 and 20 cm.

Claims (5)

Da prove di carico effettuate, a parità di luce di appoggio, adottando i rinforzi suddetti si è evidenziato un aumento di portata pari al 100% rispetto alla portata di un pannello con equivalenti caratteristiche, ma senza rinforzi. RIVENDICAZIONI 1. Pannello multistrato (1) per la realizzazione di pareti o coperture, rette o curve, degli edifici, comprendente due lamiere (10, 20), in corrispondenza delle facce esterne tra le quali è interposto uno strato di isolante (30) caratterizzato dal fatto di comprendere inoltre due lamierine di rinforzo (40) ubicate alle due estremità longitudinali del pannello, ed interposte tra il lamierino inferiore (20) e l’isolante (30). From load tests carried out, with the same support span, adopting the aforementioned reinforcements, an increase in capacity equal to 100% compared to the capacity of a panel with equivalent characteristics, but without reinforcements, has been highlighted. CLAIMS 1. Multilayer panel (1) for the construction of straight or curved walls or roofs of buildings, comprising two sheets (10, 20), corresponding to the external faces between which a layer of insulation is interposed (30) characterized by the fact that it also includes two reinforcement sheets (40) located at the two longitudinal ends of the panel, and interposed between the lower sheet (20) and the insulation (30). 2. Pannello multistrato (1) per la realizzazione di pareti o coperture, rette o curve, degli edifici secondo la rivendicazione 1 caratterizzato dal fatto che dette lamiere (10, 20), detto isolante (30) e detti lamierini di rinforzo (40) sono tra loro incollati 2. Multilayer panel (1) for the construction of straight or curved walls or roofs of buildings according to claim 1 characterized in that said sheets (10, 20), said insulator (30) and said reinforcement sheets (40) they are glued together 3. Pannello multistrato (1) per la realizzazione di pareti o coperture, rette o curve, degli edifici secondo la rivendicazione 1 o 2 caratterizzato dal fatto che detti rinforzi longitudinali (40) hanno la stessa sagoma e larghezza di dette lamiere (10, 20), una lunghezza compresa tra 200 e 500 mm ed uno spessore compreso tra 0,4 e 1,0 mm. 3. Multilayer panel (1) for the construction of straight or curved walls or roofs of buildings according to claim 1 or 2 characterized in that said longitudinal reinforcements (40) have the same shape and width as said sheets (10, 20 ), a length between 200 and 500 mm and a thickness between 0.4 and 1.0 mm. 4. Pannello multistrato (1) per la realizzazione di pareti o coperture, rette o curve, degli edifici secondo una delle rivendicazioni precedenti caratterizzato dal fatto che una o entrambe dette lamiere (10, 20) sono del tipo grecato. 4. Multilayer panel (1) for making straight or curved walls or roofs of buildings according to one of the preceding claims, characterized in that one or both of said sheets (10, 20) are of the corrugated type. 5. Pannello multistrato (1) per la realizzazione di pareti o coperture, rette o curve, degli edifici secondo una delle rivendicazioni precedenti caratterizzato dal fatto che dette lamiere (10, 20) sono in acciaio o in alluminio ed hanno uno spessore compreso tra 0,4 e 1 mm. 5. Multilayer panel (1) for the construction of straight or curved walls or roofs of buildings according to one of the preceding claims characterized in that said sheets (10, 20) are made of steel or aluminum and have a thickness of between 0 , 4 and 1 mm.
IT102018000009467A 2018-10-16 2018-10-16 MULTILAYER PANEL WITH TERMINAL REINFORCEMENT IT201800009467A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759382A1 (en) * 1968-04-26 1972-01-27 Hoesch Ag Profiled plate structure
CA2131022A1 (en) * 1992-12-28 1994-07-07 Takashi Ishikawa Refractory/Heat Insulating Panels
DE10318868A1 (en) * 2003-04-25 2004-11-25 Bauelemente Gmbh F.J. Linzmeier Insulating plate, in particular, for thermal roof and wall insulation comprises cover layers which protrude at least from one edge of the insulating layer and form reinforced edge strips
WO2018118476A1 (en) * 2016-12-20 2018-06-28 Dow Global Technologies Llc Reinforced sandwich panels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759382A1 (en) * 1968-04-26 1972-01-27 Hoesch Ag Profiled plate structure
CA2131022A1 (en) * 1992-12-28 1994-07-07 Takashi Ishikawa Refractory/Heat Insulating Panels
DE10318868A1 (en) * 2003-04-25 2004-11-25 Bauelemente Gmbh F.J. Linzmeier Insulating plate, in particular, for thermal roof and wall insulation comprises cover layers which protrude at least from one edge of the insulating layer and form reinforced edge strips
WO2018118476A1 (en) * 2016-12-20 2018-06-28 Dow Global Technologies Llc Reinforced sandwich panels

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