WO2022049472A1 - Composite panel - Google Patents

Composite panel Download PDF

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Publication number
WO2022049472A1
WO2022049472A1 PCT/IB2021/057902 IB2021057902W WO2022049472A1 WO 2022049472 A1 WO2022049472 A1 WO 2022049472A1 IB 2021057902 W IB2021057902 W IB 2021057902W WO 2022049472 A1 WO2022049472 A1 WO 2022049472A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
depressions
ridges
edges
composite panel
Prior art date
Application number
PCT/IB2021/057902
Other languages
French (fr)
Inventor
Enrico PADOVAN
Original Assignee
Euganea Pannelli Srl
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 Euganea Pannelli Srl filed Critical Euganea Pannelli Srl
Priority to EP21766224.6A priority Critical patent/EP4211321A1/en
Publication of WO2022049472A1 publication Critical patent/WO2022049472A1/en

Links

Classifications

    • 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
    • E04C2/326—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 corrugations, incisions or reliefs in more than one direction of the element
    • 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
    • E04C2/3405—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 profiled spacer sheets
    • 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
    • E04C2/3405—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 profiled spacer sheets
    • E04C2002/3444—Corrugated sheets
    • E04C2002/3466—Corrugated sheets with sinusoidal corrugations

Definitions

  • the present patent concerns composite panels made from metal plate, and more specifically it concerns a new improved composite panel made from metal plate and more preferably from aluminium.
  • Aluminium panels which comprise two plane sheets made from plate that constitute the two opposite sides of the panel, and one intermediate corrugated plate sheet interposed and welded between them.
  • Said panels are made starting from rectangular plate sheets that are welded or in any case joined together.
  • the panels of this type can be used for several applications, for example they can be shaped and/or bent to make advertising or display supports, to construct exhibition stands, to make luminous signs etc.
  • Said panels are also commonly used in the building construction sector, for example for the construction of formwork for ventilated facades, for renovating the facades of buildings, and for building construction applications in general.
  • said panels are usually made in a rectangular shape, that is, with rectilinear edges parallel to one another in pairs.
  • the corrugated sheet interposed between the external sheets is always arranged in such a way that the ridges and the depressions are parallel to one of said sides of the panel.
  • the panel is weakened also along lines that are parallel to said ridges and depressions of the corrugated sheet and therefore can be subject to undesired deformation and bending during storage, transport or processing operations.
  • the patent document US 4672780 concerns a composite panel comprising, in one of its embodiments, two external reinforcing sheets among which there is a corrugated panel comprising a series of sides alternating with a series of plane flanges.
  • Said external reinforcing sheets are structured to prevent the deformation and/or bending of the panel along the flanges.
  • Said panel is thus configured in such a way that it can be neither deformed, for example curved, nor bent.
  • the document explains that said panel can be made with metal sheets, without however specifying the type of material in greater detail but suggesting the use of an extremely rigid material.
  • the panel in fact, is suitable for making very large structures, as suggested in Figure 1 of the above-mentioned document.
  • the subject of the present patent is a new improved composite panel, preferably made completely from aluminium, which solves the drawback described above thanks to the particular and innovative configuration and to the orientation of the ridges/depressions of the intermediate corrugated sheet.
  • said ridges/depressions are oblique with respect to the edges of the panel, that is, they are neither parallel nor orthogonal to the edges of the panel. Thanks to this configuration, also the edges of the panel are stiffened even further, otherwise at the level of said edges there would be empty spaces between the two plane sheets that form the two opposite sides of the panel.
  • An advantage of the new panel lies in that it is completely recyclable, being completely made from aluminium. Thanks to this characteristic, the new panel has also a residual value as waste.
  • a further advantage lies in that even the initial product processing rejects are completely recyclable, said rejects being generated when the sheets are cut to obtain the finished product.
  • the new panel being completely made from aluminium, is incombustible and therefore does not facilitate the propagation of fire.
  • the new improved composite panel made from metal plate comprising two plane rectangular sheets made from metal plate, preferably aluminium, and at least one intermediate corrugated rectangular sheet made from metal plate, preferably aluminium, and wherein said intermediate sheet is configured with a plurality of alternating ridges and depressions which are substantially rectilinear in shape and all parallel to one another, and wherein said crests and depressions are oriented so that they are inclined with respect to the edges of the panel, that is, neither parallel nor orthogonal to the edges, at least in proximity to the edges themselves.
  • said ridges/depressions of the intermediate sheet form an angle included between 30° and 60° with the edges of the panel, and more preferably they form an angle of 45°.
  • Said panel can then normally be used for the most varied applications, for example it can be shaped and/or bent and/or coupled with one or more further panels to construct exhibition stands or advertising panels or for building construction applications in general.
  • the panel in fact, can be bent along the folding lines of the intermediate sheet, that is, along said ridges/depressions, which is not the case with the currently known panels.
  • Figure 1 shows a three-dimensional view of a composite panel (10) that is generically rectangular in shape and is obtained by coupling two external plane rectangular sheets (1, 2) and one intermediate corrugated rectangular sheet (3).
  • the ridges (31) and the depressions (32) of said intermediate sheet (3) are indicated by a broken line and are rectilinear, parallel to one another and oblique with respect to the edges (11, 12, 13, 14) of said panel (10).
  • said ridges (31) and depressions (32) form angles of 45°, in any case angles preferably included between 15° and 60° and more preferably included between 30° and 60°, with the edges (11, 12, 13, 14) of the panel (10).
  • the panel (10), in particular, is cut in such a way that said ridges (31) and depressions (32) form angles included between 15° and 60° with all the edges (11, 12, 13, 14) of the panel (10) itself.
  • Figure 2 shows a three-dimensional view of a sandwich panel (100) of the known type in which, on the contrary, the ridges (310) and the depressions (320) of the intermediate corrugated sheet (30) are oriented so that they are parallel to two edges (HO, 120) at the level of which empty spaces (330) are generated between the two plane sheets (10, 20), thus weakening the same edges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Panels For Use In Building Construction (AREA)
  • Laminated Bodies (AREA)
  • Finishing Walls (AREA)

Abstract

The invention is a composite panel (10) comprising two plane rectangular sheets (1, 2) made from metal plate and one intermediate corrugated rectangular sheet (3) made from metal plate which is interposed and constrained between said two plane sheets (1, 2), wherein said intermediate sheet (3) comprises a plurality of ridges (31) and depressions (32) which are rectilinear and parallel to one another, and wherein said ridges (31) and depressions (32) are oriented in such a way that they are oblique with respect to the edges (11, 12, 13, 14) of said panel (10).

Description

COMPOSITE PANEL
DESCRIPTION
The present patent concerns composite panels made from metal plate, and more specifically it concerns a new improved composite panel made from metal plate and more preferably from aluminium.
Aluminium panels are known, which comprise two plane sheets made from plate that constitute the two opposite sides of the panel, and one intermediate corrugated plate sheet interposed and welded between them.
Said panels are made starting from rectangular plate sheets that are welded or in any case joined together.
The panels of this type can be used for several applications, for example they can be shaped and/or bent to make advertising or display supports, to construct exhibition stands, to make luminous signs etc.
Said panels are also commonly used in the building construction sector, for example for the construction of formwork for ventilated facades, for renovating the facades of buildings, and for building construction applications in general.
As explained above, said panels are usually made in a rectangular shape, that is, with rectilinear edges parallel to one another in pairs. The corrugated sheet interposed between the external sheets is always arranged in such a way that the ridges and the depressions are parallel to one of said sides of the panel.
This results in some drawbacks, and in particular in the fact that at the level of the edges parallel to the ridges and depressions the panel is weakened and therefore easily deformable.
Furthermore, in the configuration described above, the panel is weakened also along lines that are parallel to said ridges and depressions of the corrugated sheet and therefore can be subject to undesired deformation and bending during storage, transport or processing operations.
The patent document US 2963128 concerns a structural sandwich element comprising two plane reinforcing sheets among which there is a sheet shaped in a particular way, with zig zag folds. This configuration, however, in addition to requiring particularly complex production processes, does not allow the panel to be bent in any way.
The patent document US 4672780 concerns a composite panel comprising, in one of its embodiments, two external reinforcing sheets among which there is a corrugated panel comprising a series of sides alternating with a series of plane flanges. Said external reinforcing sheets are structured to prevent the deformation and/or bending of the panel along the flanges. Said panel is thus configured in such a way that it can be neither deformed, for example curved, nor bent. The document explains that said panel can be made with metal sheets, without however specifying the type of material in greater detail but suggesting the use of an extremely rigid material. The panel, in fact, is suitable for making very large structures, as suggested in Figure 1 of the above-mentioned document.
The subject of the present patent is a new improved composite panel, preferably made completely from aluminium, which solves the drawback described above thanks to the particular and innovative configuration and to the orientation of the ridges/depressions of the intermediate corrugated sheet.
More specifically, said ridges/depressions are oblique with respect to the edges of the panel, that is, they are neither parallel nor orthogonal to the edges of the panel. Thanks to this configuration, also the edges of the panel are stiffened even further, otherwise at the level of said edges there would be empty spaces between the two plane sheets that form the two opposite sides of the panel.
An advantage of the new panel lies in that it is completely recyclable, being completely made from aluminium. Thanks to this characteristic, the new panel has also a residual value as waste.
A further advantage lies in that even the initial product processing rejects are completely recyclable, said rejects being generated when the sheets are cut to obtain the finished product.
The new panel, being completely made from aluminium, is incombustible and therefore does not facilitate the propagation of fire.
These and other direct and complementary objects are achieved by the new improved composite panel made from metal plate, comprising two plane rectangular sheets made from metal plate, preferably aluminium, and at least one intermediate corrugated rectangular sheet made from metal plate, preferably aluminium, and wherein said intermediate sheet is configured with a plurality of alternating ridges and depressions which are substantially rectilinear in shape and all parallel to one another, and wherein said crests and depressions are oriented so that they are inclined with respect to the edges of the panel, that is, neither parallel nor orthogonal to the edges, at least in proximity to the edges themselves.
More specifically, said ridges/depressions of the intermediate sheet form an angle included between 30° and 60° with the edges of the panel, and more preferably they form an angle of 45°.
As already explained, thanks to this configuration it is possible to obtain a composite rectangular panel that is correctly stiffened even at the level of its edges.
Said panel can then normally be used for the most varied applications, for example it can be shaped and/or bent and/or coupled with one or more further panels to construct exhibition stands or advertising panels or for building construction applications in general.
The panel, in fact, can be bent along the folding lines of the intermediate sheet, that is, along said ridges/depressions, which is not the case with the currently known panels.
The characteristics of the new panel are illustrated in greater detail in the following description making reference to the drawing which is attached hereto by way of a non-limiting example.
Figure 1 shows a three-dimensional view of a composite panel (10) that is generically rectangular in shape and is obtained by coupling two external plane rectangular sheets (1, 2) and one intermediate corrugated rectangular sheet (3).
The ridges (31) and the depressions (32) of said intermediate sheet (3) are indicated by a broken line and are rectilinear, parallel to one another and oblique with respect to the edges (11, 12, 13, 14) of said panel (10).
More specifically, said ridges (31) and depressions (32) form angles of 45°, in any case angles preferably included between 15° and 60° and more preferably included between 30° and 60°, with the edges (11, 12, 13, 14) of the panel (10).
The panel (10), in particular, is cut in such a way that said ridges (31) and depressions (32) form angles included between 15° and 60° with all the edges (11, 12, 13, 14) of the panel (10) itself.
Figure 2 shows a three-dimensional view of a sandwich panel (100) of the known type in which, on the contrary, the ridges (310) and the depressions (320) of the intermediate corrugated sheet (30) are oriented so that they are parallel to two edges (HO, 120) at the level of which empty spaces (330) are generated between the two plane sheets (10, 20), thus weakening the same edges.
Therefore, with reference to the above description and the attached drawing, the following claims are made.

Claims

5 CLAIMS
1. Composite panel (10) comprising to plane rectangular sheets (1, 2) made from metal plate and one intermediate corrugated rectangular sheet (3) made from metal plate interposed and constrained between said two plane sheets (1, 2), characterized in that said intermediate sheet (3) comprises a plurality of ridges (31) and depressions (32) which are rectilinear over their entire length and parallel to one another, and wherein said ridges (31) and depressions (32) are oriented in such a way that they are oblique with respect to all the edges (11, 12, 13, 14) of said panel (10).
2. Composite panel (10) according to the preceding claim, characterized in that said plane sheets (1, 2) and said intermediate sheet (3) are completely made from aluminium.
3. Composite panel (10) according to claim 1, characterized in that said ridges (31) and depressions (32) are oriented in such a way as to form angles included between 15° and 60° with at least one of said edges (11, 12, 13, 14) of said panel (10).
4. Composite panel (10) according to claim 3, characterized in that said ridges (31) and depressions (32) are oriented in such a way as to form angles of 45° with at least one of said edges (11, 12, 13, 14) of said panel (10).
5. Composite panel (10) according to any of the preceding claims, characterized in that said plane sheets (1, 2) and said intermediate sheet (3) are welded to one another.
6. Composite panel (10) according to any of the preceding claims, characterized in that said plane sheets (1, 2) and said intermediate sheet (3) are glued to one another.
PCT/IB2021/057902 2020-09-07 2021-08-30 Composite panel WO2022049472A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21766224.6A EP4211321A1 (en) 2020-09-07 2021-08-30 Composite panel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202000021148 2020-09-07
IT102020000021148 2020-09-07

Publications (1)

Publication Number Publication Date
WO2022049472A1 true WO2022049472A1 (en) 2022-03-10

Family

ID=73401951

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/057902 WO2022049472A1 (en) 2020-09-07 2021-08-30 Composite panel

Country Status (2)

Country Link
EP (1) EP4211321A1 (en)
WO (1) WO2022049472A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963128A (en) * 1958-04-21 1960-12-06 Thompson Ramo Wooldridge Inc Sandwich-type structural element
US4672780A (en) * 1984-09-04 1987-06-16 Lockwood David N Building panels
US5888621A (en) * 1994-03-03 1999-03-30 Froehlich; Wolfgang Web-like element and connecting arrangement between two web-like elements
WO2005058593A1 (en) * 2003-12-17 2005-06-30 Airbus Sandwich panel
WO2015067362A1 (en) * 2013-11-06 2015-05-14 Wood Innovations Ltd. Core layer having wood elements, in particular wood elements having a corrugated structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963128A (en) * 1958-04-21 1960-12-06 Thompson Ramo Wooldridge Inc Sandwich-type structural element
US4672780A (en) * 1984-09-04 1987-06-16 Lockwood David N Building panels
US5888621A (en) * 1994-03-03 1999-03-30 Froehlich; Wolfgang Web-like element and connecting arrangement between two web-like elements
WO2005058593A1 (en) * 2003-12-17 2005-06-30 Airbus Sandwich panel
WO2015067362A1 (en) * 2013-11-06 2015-05-14 Wood Innovations Ltd. Core layer having wood elements, in particular wood elements having a corrugated structure

Also Published As

Publication number Publication date
EP4211321A1 (en) 2023-07-19

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