GB2193465A - Improvements relating to reinforced bodies - Google Patents

Improvements relating to reinforced bodies Download PDF

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Publication number
GB2193465A
GB2193465A GB08617258A GB8617258A GB2193465A GB 2193465 A GB2193465 A GB 2193465A GB 08617258 A GB08617258 A GB 08617258A GB 8617258 A GB8617258 A GB 8617258A GB 2193465 A GB2193465 A GB 2193465A
Authority
GB
United Kingdom
Prior art keywords
support structure
outer layers
sheets
reinforced
panels
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.)
Withdrawn
Application number
GB08617258A
Other versions
GB8617258D0 (en
Inventor
Anthony Carey Williams
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.)
CAMBRIAN PLASTICS Ltd
Original Assignee
CAMBRIAN PLASTICS Ltd
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 CAMBRIAN PLASTICS Ltd filed Critical CAMBRIAN PLASTICS Ltd
Priority to GB08617258A priority Critical patent/GB2193465A/en
Publication of GB8617258D0 publication Critical patent/GB8617258D0/en
Publication of GB2193465A publication Critical patent/GB2193465A/en
Withdrawn legal-status Critical Current

Links

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
    • B32B3/10—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 discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—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 discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin 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
    • 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
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2262/101—Glass 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/024—Honeycomb
    • 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
    • B32B2313/00—Elements other than metals
    • B32B2313/04—Carbon
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • B32B2315/085—Glass fiber cloth or 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
    • B32B2607/00—Walls, panels

Abstract

A panel is formed from a support structure 1 sandwiched between outer layers 4 of glassfibre reinforced plastics material. The support structure 1 is defined by interleaved sheets 2 and 3 of fibreboard which are bonded to layers 4 by a cured resin. Outer layers 4 are bonded to the support structure to complete the formation of the panel. The whole structure has substantial rigidity but is light in weight. <IMAGE>

Description

SPECIFICATION Improvements relating to reinforced bodies This invention is concerned with the construction of panels or other bodies incorporating strengthening reinforcement. Glassfibre reinforced plastics panels have many advantages but suffer from an inherent flexibility which is a considerable disadvantage in most applications. A method of overcoming this is to sandwich a core material between two layers of glass reinforced plastics material. This core can be a plastic foam, end grain balsa or plywood. Each of these arrangements suffers from disadvantages and it is an object of this invention to provide an improved method of construction of a reinforced body.
According to the invention there is provided a reinforced body comprising a support structure of compartmentalised or honeycomb-like form with reinforced outer layers of material bonded thereto. It is preferred that the support structure should comprise interleaved sheets defining between them openings of square, diamond or other regular shapes. The sheets of the support structure may be formed from an absorbent fibreboard, a semiabsorbent board or a pressed rigid board with absorbent faces. Alternatively, the support structure may be formed from a glassfibre or carbon-fibre reinforced plastics material.
The outer layers may define wall panels of the finished structure. These outer layers may be formed from a glassfibre or carbon-fibre reinforced plastics material. The support structure and the outer layers are desirably bonded together with a resin material.
It may be desirable to form holes in the compartment walls of the support structure to allow communication between adjacent spaces of the support structure. This would enable the outer layers to be brought into contact with the support structure, during assembly, by controlled vacuum techniques. Furthermore the presence of the holes will allow the body to breathe and thus adjust for changes in temperature. It would also be possible to pass a heat transfer medium through the body, with the outer layers acting as solar collectors. The body would then comprise a solar panel.
The invention may be performed in various ways and preferred embodiments theredf will now be described with reference to the accompanying drawings, in which Figure 1 is an illustration of a flat reinforced panel constructed in accordance with this in invention; and Figures 2 and 3 are sectional views through alternatively shaped bodies constructed using the same techniques as for the body of Fig.
1.
The panel shown in Fig. 1 comprises a support structure 1 constructed from interleaved sheets 2, 3 which between them define openings of square shape. The sheets 2 and 3 are formed from fibre board. Either side of the support structure 1 are layers 4 of a glassfibre reinforced plastics material. During assembly the fibre board sheets 2 and 3 are impregnated with resin and the whole assembly is cured so that the outer layers 4 are bonded to the support structure 1. Holes 5 formed in the sheets 2 and 3 enable the whole structure to be subjected to a controlled vacuum so that the outer layers 4 are held in place against the support structure 1 during curing.As an alternative, one of the sheets 4 could be bonded to the support structure 1 and the other sheet could then be pressed onto the other face of the support structure 1 in a wet state and allowed to cure as a separate stage of construction. Normally it is envisaged that the bonding of the outer sheets 4 to the support structure 1 will take place within a mould.
The provision of holes 5 in the sheets 2 and 3 not only facilitates the application of a vacuum but also allows the panels to breathe to take account of temperature changes. If these holes are carefully arranged the panels could be used as solar collectors by passing a heat transfer medium (such as water) from one end to the other. It would then be possible to make a complete structural roof of a swimming pool, for example, as an integral solar panel.
The panels need not necessarily be of planar form since the support structure and the outer sheets 4 can be designed to any desired shape or contour. Thus the support structure could be used to stiffen and support circular or spherical shapes, box girder constructions, or other structural members.
Examples of alternative structural shapes are illustrated in Figs. 2 and 3.
The support structure imparts substantial rigidity to the whole panel which will nevertheless be light in weight. Furthermore, the panels will provide insulation since air trapped within the compartments will act as a heat and noise insulant.
1. A reinforced body comprising a support structure of compartmentalised or honeycomblike form with reinforced outer layers of material bonded thereto.
2. A body according to claim 1, wherein the support structure comprises interleaved sheets defining between them openings of square, diamond or other regular shapes.
3. A body according to claim 1 or claim 2, wherein the outer layers define wall panels of the finished structure.
4. A body according to any one of claims 1 to 3, wherein the support structure is formed from an absorbent fibreboard, a semiabsorbent board or a pressed rigid board with absorbent faces.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Improvements relating to reinforced bodies This invention is concerned with the construction of panels or other bodies incorporating strengthening reinforcement. Glassfibre reinforced plastics panels have many advantages but suffer from an inherent flexibility which is a considerable disadvantage in most applications. A method of overcoming this is to sandwich a core material between two layers of glass reinforced plastics material. This core can be a plastic foam, end grain balsa or plywood. Each of these arrangements suffers from disadvantages and it is an object of this invention to provide an improved method of construction of a reinforced body. According to the invention there is provided a reinforced body comprising a support structure of compartmentalised or honeycomb-like form with reinforced outer layers of material bonded thereto. It is preferred that the support structure should comprise interleaved sheets defining between them openings of square, diamond or other regular shapes. The sheets of the support structure may be formed from an absorbent fibreboard, a semiabsorbent board or a pressed rigid board with absorbent faces. Alternatively, the support structure may be formed from a glassfibre or carbon-fibre reinforced plastics material. The outer layers may define wall panels of the finished structure. These outer layers may be formed from a glassfibre or carbon-fibre reinforced plastics material. The support structure and the outer layers are desirably bonded together with a resin material. It may be desirable to form holes in the compartment walls of the support structure to allow communication between adjacent spaces of the support structure. This would enable the outer layers to be brought into contact with the support structure, during assembly, by controlled vacuum techniques. Furthermore the presence of the holes will allow the body to breathe and thus adjust for changes in temperature. It would also be possible to pass a heat transfer medium through the body, with the outer layers acting as solar collectors. The body would then comprise a solar panel. The invention may be performed in various ways and preferred embodiments theredf will now be described with reference to the accompanying drawings, in which Figure 1 is an illustration of a flat reinforced panel constructed in accordance with this in invention; and Figures 2 and 3 are sectional views through alternatively shaped bodies constructed using the same techniques as for the body of Fig. 1. The panel shown in Fig. 1 comprises a support structure 1 constructed from interleaved sheets 2, 3 which between them define openings of square shape. The sheets 2 and 3 are formed from fibre board. Either side of the support structure 1 are layers 4 of a glassfibre reinforced plastics material. During assembly the fibre board sheets 2 and 3 are impregnated with resin and the whole assembly is cured so that the outer layers 4 are bonded to the support structure 1. Holes 5 formed in the sheets 2 and 3 enable the whole structure to be subjected to a controlled vacuum so that the outer layers 4 are held in place against the support structure 1 during curing.As an alternative, one of the sheets 4 could be bonded to the support structure 1 and the other sheet could then be pressed onto the other face of the support structure 1 in a wet state and allowed to cure as a separate stage of construction. Normally it is envisaged that the bonding of the outer sheets 4 to the support structure 1 will take place within a mould. The provision of holes 5 in the sheets 2 and 3 not only facilitates the application of a vacuum but also allows the panels to breathe to take account of temperature changes. If these holes are carefully arranged the panels could be used as solar collectors by passing a heat transfer medium (such as water) from one end to the other. It would then be possible to make a complete structural roof of a swimming pool, for example, as an integral solar panel. The panels need not necessarily be of planar form since the support structure and the outer sheets 4 can be designed to any desired shape or contour. Thus the support structure could be used to stiffen and support circular or spherical shapes, box girder constructions, or other structural members. Examples of alternative structural shapes are illustrated in Figs. 2 and 3. The support structure imparts substantial rigidity to the whole panel which will nevertheless be light in weight. Furthermore, the panels will provide insulation since air trapped within the compartments will act as a heat and noise insulant. CLAIMS
1. A reinforced body comprising a support structure of compartmentalised or honeycomblike form with reinforced outer layers of material bonded thereto.
2. A body according to claim 1, wherein the support structure comprises interleaved sheets defining between them openings of square, diamond or other regular shapes.
3. A body according to claim 1 or claim 2, wherein the outer layers define wall panels of the finished structure.
4. A body according to any one of claims 1 to 3, wherein the support structure is formed from an absorbent fibreboard, a semiabsorbent board or a pressed rigid board with absorbent faces.
5. A body according to any one of claims 1 to 3, wherein the support structure is formed from a glassfibre or carbon-fibre rein forced plastics material.
6. A body according to any one of claims 1 to 5, wherein the outer layers are formed from a glassfibre or carbon-fibre reinforced plastics material.
7. A body according to any one of claims 1 to 6, wherein the compartment walls of the support structure have holes formed therein allowing communication between adjacent spaces of the support structure.
8. A body according to any one of claims 1 to 7, wherein the support structure and the outer layers are bonded together with a resin material.
9. A reinforced body substantially as herein described with reference to the accompanying drawings.
GB08617258A 1986-07-15 1986-07-15 Improvements relating to reinforced bodies Withdrawn GB2193465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08617258A GB2193465A (en) 1986-07-15 1986-07-15 Improvements relating to reinforced bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08617258A GB2193465A (en) 1986-07-15 1986-07-15 Improvements relating to reinforced bodies

Publications (2)

Publication Number Publication Date
GB8617258D0 GB8617258D0 (en) 1986-08-20
GB2193465A true GB2193465A (en) 1988-02-10

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Family Applications (1)

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GB08617258A Withdrawn GB2193465A (en) 1986-07-15 1986-07-15 Improvements relating to reinforced bodies

Country Status (1)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028262A2 (en) * 1993-05-28 1994-12-08 Royal Building Systems (Cdn) Limited Thermoplastic structural components and structures formed therefrom
AU709600B2 (en) * 1993-05-28 1999-09-02 Royal Building Systems (Cdn) Limited Thermoplastic structural components and structures formed therefrom
US5974751A (en) * 1994-05-27 1999-11-02 De Zen; Vittorio Housing system with structural cored hollow components
EP1081305A1 (en) * 1999-03-19 2001-03-07 Toray Industries, Inc. Frp roof material, method of manufacturing the roof material, and structure and method for connecting the roof material
WO2001073230A1 (en) * 2000-03-28 2001-10-04 Cns Networks Limited A liner
NL2008741C2 (en) * 2012-05-02 2013-11-06 Aquila Participaties B V PLATE-CONSTRUCTION ELEMENT AND METHOD FOR MANUFACTURING THE CONSTRUCTION ELEMENT.
US9318463B2 (en) 2013-05-13 2016-04-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing a photovoltaic module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1412926A (en) * 1973-06-15 1975-11-05 Messerschmitt Boelkow Blohm Structures of sandwich construction
GB1444346A (en) * 1972-08-31 1976-07-28 Dufaylite Dev Ltd Honeycomb materials
GB1537186A (en) * 1977-05-04 1978-12-29 Kirk J Building wall structures
GB2066730A (en) * 1979-12-06 1981-07-15 Lord Corp Sound-absorbing panel
GB2107645A (en) * 1981-08-05 1983-05-05 Rca Corp Support structure
GB2173447A (en) * 1985-03-28 1986-10-15 Dufaylite Dev Ltd Panel material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1444346A (en) * 1972-08-31 1976-07-28 Dufaylite Dev Ltd Honeycomb materials
GB1412926A (en) * 1973-06-15 1975-11-05 Messerschmitt Boelkow Blohm Structures of sandwich construction
GB1537186A (en) * 1977-05-04 1978-12-29 Kirk J Building wall structures
GB2066730A (en) * 1979-12-06 1981-07-15 Lord Corp Sound-absorbing panel
GB2107645A (en) * 1981-08-05 1983-05-05 Rca Corp Support structure
GB2173447A (en) * 1985-03-28 1986-10-15 Dufaylite Dev Ltd Panel material

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028262A2 (en) * 1993-05-28 1994-12-08 Royal Building Systems (Cdn) Limited Thermoplastic structural components and structures formed therefrom
WO1994028262A3 (en) * 1993-05-28 1995-02-16 Zen Vittorio De Thermoplastic structural components and structures formed therefrom
EP0795654A2 (en) * 1993-05-28 1997-09-17 Royal Building Systems (Cdn) Limited Thermoplastic structural components and structures formed therefrom
EP0795654A3 (en) * 1993-05-28 1997-10-29 Royal Building Syst Canada
US5729944A (en) * 1993-05-28 1998-03-24 Royal Building Systems (Cdn) Limited Thermoplastic structural components and structures formed therefrom
AU709600B2 (en) * 1993-05-28 1999-09-02 Royal Building Systems (Cdn) Limited Thermoplastic structural components and structures formed therefrom
US5974751A (en) * 1994-05-27 1999-11-02 De Zen; Vittorio Housing system with structural cored hollow components
EP1081305A1 (en) * 1999-03-19 2001-03-07 Toray Industries, Inc. Frp roof material, method of manufacturing the roof material, and structure and method for connecting the roof material
EP1081305A4 (en) * 1999-03-19 2005-03-16 Toray Industries Frp roof material, method of manufacturing the roof material, and structure and method for connecting the roof material
WO2001073230A1 (en) * 2000-03-28 2001-10-04 Cns Networks Limited A liner
NL2008741C2 (en) * 2012-05-02 2013-11-06 Aquila Participaties B V PLATE-CONSTRUCTION ELEMENT AND METHOD FOR MANUFACTURING THE CONSTRUCTION ELEMENT.
US9318463B2 (en) 2013-05-13 2016-04-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing a photovoltaic module

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