WO2013112059A1 - Method of production of composite panels and snowboard, kiteboard, surfboard and skis as a type of the composite panel - Google Patents

Method of production of composite panels and snowboard, kiteboard, surfboard and skis as a type of the composite panel Download PDF

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Publication number
WO2013112059A1
WO2013112059A1 PCT/PL2013/000005 PL2013000005W WO2013112059A1 WO 2013112059 A1 WO2013112059 A1 WO 2013112059A1 PL 2013000005 W PL2013000005 W PL 2013000005W WO 2013112059 A1 WO2013112059 A1 WO 2013112059A1
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WO
WIPO (PCT)
Prior art keywords
core
mould
composite
covered
flat
Prior art date
Application number
PCT/PL2013/000005
Other languages
French (fr)
Inventor
Dariusz Mirosław ROSIAK
Original Assignee
Rosiak Dariusz Miroslaw
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
Priority claimed from PL397903A external-priority patent/PL232009B1/en
Priority claimed from PL398751A external-priority patent/PL222572B1/en
Application filed by Rosiak Dariusz Miroslaw filed Critical Rosiak Dariusz Miroslaw
Priority to EP13707460.5A priority Critical patent/EP2834061A1/en
Publication of WO2013112059A1 publication Critical patent/WO2013112059A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/59—Boards characterised by their manufacturing process, e.g. moulded or 3D printed
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials
    • A63C5/126—Structure of the core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/56—Tensioning reinforcements before or during shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10—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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin 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
    • 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
    • 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
    • B32B3/263—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 having non-uniform thickness
    • 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
    • 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
    • B32B3/30—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 formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/57—Boards characterised by the material, e.g. laminated materials
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/01—Skateboards
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/42—Details of chassis of ice or roller skates, of decks of skateboards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
    • B29L2031/5263—Skis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
    • B29L2031/5272—Surf boards

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Composite Materials (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)

Abstract

The subject of the invention is the method of production of composite panels and snowboard, kiteboard, surfboard and skis as a type of the composite panel, colloquially referred to as the board, which consists in that at the stage of its production pre-stresses are introduced to the construction through the strain of the core (1) within the scope of its elastic strain and permanent bonding with the construction layers (2), (4), moulding inserts (8), (11), (12) and the foil (3), (5). After the production process is completed, the core remains elastically strained, with pres-stresses retained. This strain assumes the form of a micro- undulation and it allows to obtain a composite panel with the top or bottom surface flat or both surfaces flat, useful in production of snowboard, kiteboard, surfboard and skis.

Description

Method of production of composite panels and snowboard, kiteboard, surfboard and skis as a type of the composite panel
The subject of the invention is the method of production of composite panels and snowboard, kiteboard, surfboard and skis as a type of the composite panel, colloquially referred to as the board, in which at the stage of its production pre-stresses are introduced to its construction through the strain of the core within the scope of its elastic strain and permanent bonding with the remaining construction layers. After the production process is completed, the core remains elastically strained, with pre-stresses retained. This strain assumes the form of micro-undulations and allows to obtain a composite panel with the top or bottom surface flat or both of these surfaces flat, useful in production of snowboard, kiteboard, surfboard and skis.
In the known constructions of boards, torsional resistance is closely related to their flexibility. Greater flexibility means lower torsional resistance, and vice versa, greater torsional resistance means lower flexibility. Thus, the limit of boards flexibility increase occurs, which is favourable for their functional properties. Below this limit the torsional resistance becomes insufficient for good functional properties.
In some boards constructions some improvement of torsional resistance is obtained by application of special undulating inserts. Such a solution is known from the patent publication no. WO 2006/085004 A1 on the skis construction. The same effect can be obtained with application of materials of different mechanical properties in different directions, using for instance multi-directional weaving glass cloth; however, in the cited solutions the pre-stress introduced by micro-undulation of the core within the scope of elastic strain does not occur. The method of production of composite panels in closed moulds with the use of materials permanently bonding particular layers of the composite according to the invention is characterised by that into the mould, the top part of which is undulating and the bottom part is flat, the core made from elastic material, preferably from wood, is inserted, the top surface of which is flat, whereby the bottom surface is undulating in the way being a mirror image of the undulation of the top surface of the mould, and then the top and the bottom surface of the core is covered with construction material of low elongation under load and with the bonding agent, and then the top and the bottom surface is covered with the separating layer, preferably plastic foil, and upon that the mould is closed under pressure sufficient for permanent set of the core within the scope of elastic strain, for the time necessary for permanent bonding of particular layers of the composite, and after the necessary period of time the mould is opened, or that into the mould, the top and the bottom part of which are flat, the core made from elastic material, preferably wood, is inserted, the top surface of which is flat, whereby the bottom surface is undulating, and then the top and the bottom surface of the core are covered with construction material of low elongation under load and with the bonding agent, and then a moulding insert is placed on the top surface of the core, which is undulating in the way being the mirror image of the undulation of the bottom part of the core, and then the top and the bottom surface is covered with separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core within the scope of elastic strain for the time necessary for permanent bonding of particular layers of the composite, and after the necessary period of time the mould is opened, or that into the mould, the top and the bottom part of which are flat, the core made from elastic material, preferably wood, the top and the bottom surface of which are flat, is inserted, and then the top and the bottom surface of the core is covered with the construction material of low elongation under load and with the bonding agent, and then on the top and the bottom surface of the core undulating moulding inserts, displaced in relation to each other by half an undulation, are applied, and then the top and the bottom surface is covered with the separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core within the scope of elastic strain for the time necessary for permanent bonding of particular layers of the composite, and after the necessary time the mould is opened.
The method of production of composite panels in closed moulds with the use of materials permanently bonding the particular layers of the composite according to the variety of the invention is characterised by that into the mould, the top and the bottom part of which are flat, the core made from elastic material, preferably wood, the top and the bottom surface of which are parallel undulating, is inserted, and the undulation parameters are chosen in such a way so that the undulation straightening takes place within the scope of elastic strain of the core material, where the top and the bottom surface of the core is covered with construction material of low elongation under load and with the bonding agent, and then the top and the bottom surface is covered with the separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core in the form of total or partial straightening of undulations within the scope of elastic strain for the time necessary for permanent bonding of the particular layers of the composite, and after the necessary period of time the mould is opened.
The method of production of composite panels in closed moulds with the use of materials permanently bonding the particular layers of the composite according to another variety of the invention is characterized by that into the mould, the top part of which is undulating and the bottom part is flat, the core made from elastic material, preferably wood, the top and the bottom surface of which are flat, is inserted, and then the top and the bottom surface of the core is covered with the construction material of low elongation under load, and then on the bottom surface of the core a moulding insert, undulated parallel to the top mould undulation, is placed and covered with the bonding agent, and then the top and the bottom surface is covered with the separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core in the form of an undulation for the time necessary for permanent bonding of the particular layers of the composite, and after the necessary period of time the mould is opened, whereby the undulation parameters are chosen in such a way that the core strain takes place within the scope of elastic strain of the core material.
Snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered from the top and the bottom side with the construction layer and the foil according to the invention are characterised by that they possess the core strained elastically in the form of an undulation and the undulating top surface and the flat bottom surface.
The variety of snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered from the top and the bottom side with the construction layer and the foil according to the invention is characterised by that it possesses the core strained elastically in the form of an undulation equipped at one side with a moulding insert, whereby their top and bottom surfaces are flat.
The variety of snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered from the top and the bottom side with the construction layer and the foil according to the invention is characterised by that it possesses the core strained elastically in the form of an undulation equipped at the top and the bottom part with undulating moulding inserts displaced in relation to each other by half an undulation, whereby their top and bottom surfaces are flat.
Snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered from the top and the bottom side with the construction layer and the foil according to the variety of the invention are characterised by that they possess the elastically strained core equipped at one side with the construction material covered with foil, whereby their top and bottom surfaces are flat. Snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered from the top and the bottom side with the construction layer and the foil according to the variety of the invention are characterised by that they possess the core strained elastically in the form of an undulation equipped at the bottom side with the undulating moulding insert, whereby their top surface is undulating and the bottom surface is flat.
The advantage of the boards produced with the method according to the invention is the possibility to obtain high torsional resistance by introduction of pre-stresses in any selected area without a significant increase of the construction rigidity. The rigidity increases from 3 to 10%, and the torsional resistance to 35%. With the method of production according to the invention boards with the top or bottom surface flat or both surfaces flat can be made. This method can be applied at production of skis, snowboards, kiteboards and surfboards, in which significant increase of torsional resistance together with low increase of rigidity while retaining the optimum shape, which in these products is a highly desirable feature, occurs.
Embodiment I. The method of production of boards produced in press- closed moulds (Fig. 1) with the force sufficient for elastic strain of the core at the parameters necessary for permanent bonding of the composite layers consists in that the core made from elastic material in the form of wood, the top surface of which is flat, whereas the bottom part is undulating in the way being the mirror image of the undulation of the top mould, is bonded permanently with the construction layers containing material of low elongation under load in the form of glass fibre, whereby the top and the bottom surface of the construction layers is covered with foil, and then the charge prepared in this way is subjected to pressing in the mould, as a result of which the top part of the core gets undulated in accordance with the shape of the undulation of the top mould, and the bottom part of the core gets flattened in accordance with the shape of the bottom mould, owing to which the core is strained within the scope of elastic strain, and then the mould is opened.
After the pressing process is completed, the top surface of the board together with the top construction layer is permanently undulated, and the bottom part of the board together with the bottom construction layer is permanently flat. The top part of the core is undulating, and the bottom is flat, inversely than before the pressing process, with the pre-stresses retained.
Embodiment II. The method of production of boards produced in press-closed moulds (Fig. 2) with the force sufficient for elastic strain of the core at the parameters necessary for permanent bonding of the composite layers consists in that the core made from elastic material in the form of wood, the top surface of which is flat, whereby the bottom surface is undulating in the way being the mirror image of the undulation of the insert moulding the top undulation, is bonded permanently with the construction layers containing material of low elongation under load, preferably carbon fibre, whereby the top surface of the construction layer is covered with foil, and then the charge prepared in this way is subjected to pressing in the mould, as a result of which the top part of the core gets undulated in accordance with the shape of undulation of the insert moulding the top undulation, and the bottom part of the core gets flattened in accordance with the shape of the bottom mould, owing to which the core is strained within the scope of elastic strain of the core material, and then the mould is opened.
After the pressing process is completed, the top surface of the board is permanently flat, and the top construction layer together with the top part of the core is permanently undulating, and the bottom surface of the board together with the bottom construction layer is permanently flat. The top part of the core is undulating, and the bottom part is flat, inversely than before the pressing process, with the pre-stresses retained.
Embodiment III. The method of production of boards produced in press-closed moulds (Fig. 3) with the force sufficient for elastic strain of the core at the parameters necessary for permanent bonding of the composite layers consists in that the core made from elastic material in the form of glued wood, the top and the bottom surface of which is flat, is bonded permanently with the construction layers containing material of low elongation under load in the form of carbon fibre and with inserts moulding the undulation, where the top and the bottom surface of the construction layers is covered with foil, and then the mould is opened.
As a result of pressing the core gets undulating in accordance with the shape of the undulating inserts moulding the undulations, owing to which the core is strained within the scope of elastic strain of the core material. After the process is completed, the top and the bottom surface of the board is permanently flat, and the construction layers together with the core are permanently undulating.
Embodiment IV. The method of production of boards produced in press- closed moulds (Fig. 7) with the force sufficient for elastic strain of the core at the parameters necessary for permanent bonding of the composite layers consists in that the core made from elastic material in the form of glued wood, the top and the bottom surface of which are undulating, is permanently bonded with the construction layers containing material of low elongation under load in the form of carbon fibre, glass fibre or the mixture of these fibres, which are covered with foil, and then the mould is opened.
As a result of pressing the core is strained within the scope of elastic strain. After the process is completed, the top and the bottom surface of the board is permanently flat, just like the construction layers, the wooden core and the foil.
Embodiment V. The method of production of boards produced in press-closed moulds (Fig. 9) with the force sufficient for elastic strain of the core at the parameters necessary for permanent bonding of the composite layers consists in that the core made from elastic material in the form of glued wood, the top and the bottom surfaces of which are flat, is permanently bonded with the construction layers containing material of low elongation under load in the form of carbon fibre, glass fibre or the mixture of these fibres, and with the moulding insert located at the bottom side, which are covered with foil, and then the mould is opened.
As a result of pressing the core is strained within the scope of elastic strain. After the process is completed, the top surface of the board is permanently undulating, and the bottom part of the board is permanently flat.
The method of production of composite panels has been presented in the embodiment in the drawing, where in Fig. 1 , Fig. 2, Fig. 3, Fig. 7 and Fig. 9 the longitudinal section through mould F at particular stages of the composite panel production was shown, and the stages include the stage A of the open mould F directly before it is closed, the stage B of the closed mould F during production of the composite panel, and the stage C of the open mould F directly after the composite panel has been produced.
The composite panel according to the invention has been presented in the embodiment in the drawing, where in Fig. 4 a longitudinal section was presented, in which the bottom part of the composite panel is flat, whereas the top part is undulating and it contains the elastically strained core, in Fig. 5 a longitudinal section was presented, in which the top and the bottom part of the composite panel is flat and it contains the elastically strained, undulating core and the undulating top construction layer, in Fig. 6 a longitudinal section was presented, in which the top and the bottom part of the composite panel is flat and it contains the elastically strained core and the undulating top and bottom part of the composite panel, in Fig. 7 a longitudinal section was presented, in which the top and the bottom part of the composite panel is flat and it contains elastically strained, undulating core, and in Fig. 9 a longitudinal section was presented, in which the top surface of the composite panel is undulating, and the bottom surface of the composite panel is flat and it contains the elastically strained, undulating core completed from the bottom with the undulating moulding insert. As it is shown in the drawing, snowboard, kiteboard, surfboard and skis as a type of the composite panel (Fig. 4) contain permanently bonded with each other the core 1. covered from the top side with the construction layer 2 and foil 3, and from the bottom side with the construction layer 4 and the foil 5, whereby the core 1 at the stage of the composite panel moulding is strained elastically, as a result of which it is permanently undulating within the scope of elastic strain, as a result of which they have the undulating top surface 6 and the flat bottom surface 7.
Snowboard, kiteboard, surfboard and skis as a type of the composite panel (Fig.
5) containing permanently bonded with each other the core 1 covered from the top side with the construction layer 2, the moulding insert 8 and the foil 3, and from the bottom covered with the construction layer 4 and the foil 5, whereby their top surface 9 and bottom surface 10 are flat.
Snowboard, kiteboard, surfboard and skis as a type of the composite panel (Fig.
6) containing permanently bonded with each other the core covered from the top side with the construction layer 2, the moulding insert H and the foil 3, and from the bottom side with the construction layer 4, the moulding insert 12 and the foil 5, whereby their top surface 13 and the bottom surface 14 are flat.
Snowboard, kiteboard, surfboard and skis as a type of the composite panel (Fig. 8, Fig. 10) containing permanently bonded with each other the core covered from the top side with the construction layer 2 and the foil 3 and from the bottom with the construction layer 4 and the foil 5 (Fig. 8) or the construction layer 4 and the moulding insert 8 and the foil 5 (Fig. 10), whereby their top surface 9 and the bottom surface 10 are flat (Fig. 8) or the top surface 6 is undulating, and the bottom surface 7 is flat (Fig. 10).

Claims

Patent claims
1. The method of production of composite panels in closed moulds with the use of materials permanently bonding the particular layers of the composite, characterised by that into the mould, the top part of which is undulating and the bottom part is flat, the core made from elastic material, preferably wood, is inserted, the top surface of which is flat, whereas the bottom surface is undulating in the way being the mirror image of the undulation of the top surface of the mould, whereby the top and the bottom surfaces of the core are covered with the construction material of low elongation under load and with the bonding agent, and then the top and the bottom surfaces are covered with the separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core within the scope of elastic strain for the time necessary for permanent bonding of the particular layers of the composite and after the necessary period of time the mould is opened.
2. The method of production of composite panels in closed moulds with the use of materials permanently bonding the particular layers of the composite, characterised by that into the mould, the top and bottom parts of which are flat, the core made from elastic material, preferably wood, is inserted, the top surface of which is flat, whereas the bottom part is undulating, and then the top and the bottom surfaces of the core are covered with the construction material of low elongation under load and with the bonding agent, and then on the top surface of the core a moulding insert, undulating in the way being the mirror image of the undulation of the bottom part of the core, is placed, and then the top and the bottom surfaces are covered with the separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core within the scope of elastic strain for the time necessary for permanent bonding of the particular layers of the composite, and after the necessary time period the mould is opened.
3. The method of production of composite panels in closed moulds with the use of materials permanently bonding the particular layers of the composite, characterised by that into the mould, the top and bottom parts of which are flat, the core made from elastic material, preferably wood, is inserted, the top and the bottom surfaces of which are flat, and then the top and the bottom surfaces of the core are covered with the construction material of low elongation under load and with the bonding agent, and then on the top and the bottom surfaces of the core undulating moulding inserts, displaced in relation to each other by half an undulation, are applied, and then the top and the bottom surfaces are covered with the separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core within the scope of elastic strain for the time necessary for permanent bonding of particular layers of the composite, and after the necessary time period the mould is opened.
4. The method of production of composite panels in closed moulds with the use of materials permanently bonding the particular layers of the composite, characterised by that into the mould, the top and bottom parts of which are flat, the core made from elastic material, preferably wood, is inserted, the top and the bottom surfaces of which are parallel undulating, and the undulation parameters are chosen in such a way so that the undulation straightening takes place within the scope of elastic strain of the core material, where the top and the bottom surfaces of the core are covered with construction material of low elongation under load and with the bonding agent, and then the top and the bottom surfaces are covered with the separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core in the form of total or partial straightening of undulations within the scope of elastic strain for the time necessary for permanent bonding of the particular layers of the composite and after the necessary period of time the mould is opened.
5. The method of production of composite panels in closed moulds with the use of materials permanently bonding the particular layers of the composite, characterised by that into the mould, the top part of which is undulating and the bottom part is flat, the core made from elastic material, preferably wood, the top and the bottom surfaces of which are flat, is inserted, and then the top and the bottom surfaces of the core are covered with the construction material of low elongation under load, and then on the bottom surface of the core a moulding insert, undulating in parallel to the top mould undulation, is placed and covered with the bonding agent, and then the top and the bottom surfaces are covered with the separating layer, preferably plastic foil, and then the mould is closed under pressure sufficient for permanent set of the core in the form of an undulation for the time necessary for permanent bonding of the particular layers of the composite and after the necessary period of time the mould is opened, whereby the undulation parameters are chosen in such a way that the core strain takes place within the scope of elastic strain of the core material.
6. Snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered at the top and the bottom side with the construction layer and the foil, characterised by that they possess the core strained elastically in the form of an undulation Q) and the undulating top surface (6) and the flat bottom surface (7).
7. Snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered at the top and the bottom side with the construction layer and the foil, characterised by that they possess the core strained elastically in the form of an undulation (1) equipped at one side with the undulating moulding insert (8), whereby their top surface (9) and bottom surface (10) are flat.
8. Snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered at the top and the bottom side with the construction layer and the foil, characterised by that they possess the core strained elastically in the form of an undulation (1) equipped at the top and the bottom part with undulating moulding inserts (H), (12) displaced in relation to each other by half an undulation, whereby their top surface (13) and bottom surface (14) are flat.
9. Snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered at the top and the bottom side with the construction layer and the foil, characterised by that they possess the elastically strained core (1) equipped at one side with the construction material (2) covered with foil (3), whereby their top surface (9) and the bottom surface (10) are flat.
10. Snowboard, kiteboard, surfboard and skis as a type of the composite panel containing permanently bonded with each other the core covered at the top and the bottom side with the construction layer and the foil, characterised by that they possess the core strained elastically in the form of an undulation (1) equipped at the bottom with the undulating moulding insert (8), whereby their top surface (6) is undulating, and the bottom surface (7) is flat.
PCT/PL2013/000005 2012-01-25 2013-01-24 Method of production of composite panels and snowboard, kiteboard, surfboard and skis as a type of the composite panel WO2013112059A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13707460.5A EP2834061A1 (en) 2012-01-25 2013-01-24 Method of production of composite panels and snowboard, kiteboard, surfboard and skis as a type of the composite panel

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PL397903A PL232009B1 (en) 2012-01-25 2012-01-25 Method for producing composite panels and a snowboard, a kiteboard, a surfboard and skis as a kind of composite panel
PLP.397903 2012-01-25
PLP.398751 2012-04-06
PL398751A PL222572B1 (en) 2012-04-06 2012-04-06 A method of producing composite boards and snowboard, kiteboard, surfboard and skis as a type of composite board

Publications (1)

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WO2013112059A1 true WO2013112059A1 (en) 2013-08-01

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EP (1) EP2834061A1 (en)
WO (1) WO2013112059A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302859A (en) * 1979-09-17 1981-12-01 Kozminski Andre A Surfboard and method of constructing same
JPH09103533A (en) * 1995-08-09 1997-04-22 Suncall Corp Sliding board
WO2006085004A1 (en) 2005-02-08 2006-08-17 Salomon S.A. Sliding or rolling board having a composite structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302859A (en) * 1979-09-17 1981-12-01 Kozminski Andre A Surfboard and method of constructing same
JPH09103533A (en) * 1995-08-09 1997-04-22 Suncall Corp Sliding board
WO2006085004A1 (en) 2005-02-08 2006-08-17 Salomon S.A. Sliding or rolling board having a composite structure

Also Published As

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