FR2460836A1 - Wind-surfer hulls of foam enclosed by semi-rigid panels and strips - using adhesive bonded joints for simplicity - Google Patents
Wind-surfer hulls of foam enclosed by semi-rigid panels and strips - using adhesive bonded joints for simplicity Download PDFInfo
- Publication number
- FR2460836A1 FR2460836A1 FR7918073A FR7918073A FR2460836A1 FR 2460836 A1 FR2460836 A1 FR 2460836A1 FR 7918073 A FR7918073 A FR 7918073A FR 7918073 A FR7918073 A FR 7918073A FR 2460836 A1 FR2460836 A1 FR 2460836A1
- Authority
- FR
- France
- Prior art keywords
- plates
- foam
- edge
- areas
- edges
- 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- Withdrawn
Links
Classifications
-
- 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
- B63B32/40—Twintip boards; Wakeboards; Surfboards; Windsurfing boards; Paddle boards, e.g. SUP boards; Accessories specially adapted therefor
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- 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
- B63B32/50—Boards characterised by their constructional features
-
- 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
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
Abstract
Description
La présente invention concerne les coques du type : planche à voile, planche de surf, bateaux, radeaux et d'use façon générale tout objet devant allier résistance, aspect et légèreté. The present invention relates to hulls of the type: windsurfing board, surfboard, boats, rafts and generally any object having to combine strength, appearance and lightness.
La réalisation des coques légères utilise principalement la technique du collage de deux demi coques en polyester moulé ou en
ABS thermoformé ou en Aluminium pressé ou en panneaux de bois assemblés, puis, pour des raisons de sécurité et de résistance, l'ensemble est souvent rempli de mousse type Polyurethan. The production of light shells mainly uses the technique of bonding two half-shells in molded polyester or
Thermoformed ABS or pressed aluminum or assembled wood panels, then, for safety and resistance reasons, the assembly is often filled with Polyurethan type foam.
Un autre procédé propre aux planches de surf consiste à enrober un bloc de mousse de plusieurs- couches de tissus de verre enduit de polyedses, puis après un ponçage minutieux, on réalise plusieurs couches de finition avec de la résine diluée.Another process specific to surfboards consists in coating a block of foam with several layers of glass fabrics coated with polyedses, then after careful sanding, several finishing layers are made with diluted resin.
Le dispositif suivant l'invention permet d'obtenir pour les planches à voile par exemple, des coques alliant les avantages des coques en mousse enrobée de polyester armé de tissus de verre absence de collage sur la tranche, grande résistance et stabilité dimensionnelle, aux avantages des plaques utilisées pour le fond et le plancher : forte épaisseur, resistance au choc, bel aspect. The device according to the invention makes it possible to obtain, for windsurfing boards, for example, hulls combining the advantages of hulls in polyester-coated foam reinforced with glass fabrics absence of bonding on the edge, great strength and dimensional stability, with the advantages plates used for the bottom and the floor: very thick, impact resistance, beautiful appearance.
D'autre part le procédé permet de réaliser des coques à arêtes vives permettant d'améliorer les performances.On the other hand, the method makes it possible to produce shells with sharp edges making it possible to improve performance.
Le procédé de construction, objet de l'invention consiste tout d'abord en la réalisation d'un élement du type sandwich composé d'une âme en mousse à la forme de l'objet désiré, recouvert sur ses zones dont la courbure est faible, de plaques prédécoupées. The construction method, object of the invention consists first of all in the production of an element of the sandwich type composed of a foam core in the shape of the desired object, covered on its zones whose curvature is slight. , pre-cut plates.
Les zones entre les plaques, et en particulier le bord de l'objet, reSteront avec la mousse apparente.The areas between the plates, and in particular the edge of the object, will remain with the visible foam.
Punis, dans un deuxième temps, on réalisera le ponçage des zones entre plaques puis leur recouvrement de résine renforcée et leur finition.Punished, in a second step, we will perform the sanding of the areas between plates then their reinforced resin covering and their finishing.
Selon un mode de réalisation de l'invention concernant les planches à voile ou de surf, on usinera un bloc de mousse à la forme de l'objet définitif, tant en épaisseur qu'en largeur, sans tenir compte de l'effet de spatulage qui sera obtenu par déformation dans la presse du bloc de mousse. According to one embodiment of the invention relating to windsurfing or surfboards, a block of foam will be machined to the shape of the final object, both in thickness and in width, without taking account of the spatula effect. which will be obtained by deformation in the press of the foam block.
Puis on découpera deux plaques d'ABS, polyester ou autre à la forme des surfaces supérieures et inférieures souhaitées pour la coque.Then cut two ABS, polyester or other plates to the shape of the upper and lower surfaces desired for the shell.
Les plaques étant enduites de colle type : résine polyester, epoxy ou polyurethane sur leur face destinée à être en contact avec le bloc de mousse ; ce dernier sera placé entre elles et le tout dans une presse pendant le temps nécessaire au collage.The plates being coated with type glue: polyester, epoxy or polyurethane resin on their face intended to be in contact with the foam block; the latter will be placed between them and all in a press for the time necessary for bonding.
les plateaux de la presse auront la forme désirée pour les surfaces supérieures et inférieures de la coque.the press plates will have the desired shape for the upper and lower surfaces of the shell.
Selon un autre mode de réalisation de l'invention, le sandwich plaques mousse sera réalisé grace à un conformateur dans lequel on aura placé les flaques supérieures et inférieures avant fermeture et où on procédera à l'injection de mousse polyurethane liquide in situ. L'expansion de la mousse créera la mise en forme des plaques et leur adhérence sur la mousse.According to another embodiment of the invention, the foam plate sandwich will be produced using a shaper in which the upper and lower puddles will have been placed before closing and where the injection of liquid polyurethane foam will be carried out in situ. The expansion of the foam will create the shaping of the plates and their adhesion to the foam.
Dans les 2 procédés, il faudra veiller à ce que la mousse n'adhère pas sur le bord des plaques (environ 2 centimètres) de façon à pouvoir y introduire le bord des tissus servant à réaliser les zones entre plaques.In both methods, care must be taken to ensure that the foam does not adhere to the edge of the plates (approximately 2 cm) so that the edge of the tissue used to make the areas between plates can be introduced there.
Ceci sera obtenu, soit par absence de colle dans le premier cas de réalisation, soit par protection de la surface dans le second cas, ou par décollage dans tous les cas.This will be obtained either by absence of glue in the first embodiment, or by protection of the surface in the second case, or by take-off in all cases.
Le sandwich mousse plaque ayant été réalisé par l'un des deux procédés précédemment décrits à titre non limitatif, on exécutera les opérations suivantes : mise en forme du bord, pose des tissus, imprégnation des tissus avec la résine et finition.The plate foam sandwich having been produced by one of the two methods described above without limitation, the following operations will be carried out: shaping of the edge, laying of the fabrics, impregnation of the fabrics with the resin and finishing.
Selon un mode de réalisation préférentiel, la mise en forme du bord se fera par ponça ge ou rabotage au doyen d'un outil adapté prenant appui sur le bord des plaques supérieure et inférieure qui joueront le rôle de guide.According to a preferred embodiment, the shaping of the edge will be done by sanding or planing with the dean of a suitable tool resting on the edge of the upper and lower plates which will act as a guide.
Selon un mode de réalisation Dréférentiel, les tissus de verre ou de Kelvar sueront découlés en bande de largeur légèrement plus grande (environ 3 à 4 centimètres) que la zone de mousse à recouvrir.According to a Dréférentiel embodiment, the glass or Kelvar fabrics will follow in a slightly wider strip (about 3 to 4 centimeters) than the foam area to be covered.
Ils seront ensuite placés sur la mousse et les bords des tissus seront glissés au moyen d'un outil adapté entre la mousse et le bord des plaques sur une profondeur de 2 centimètres environ.They will then be placed on the foam and the edges of the fabrics will be slid using a suitable tool between the foam and the edge of the plates to a depth of about 2 centimeters.
Les tissus étant mis en place, leur imprégnation par la résine se fera soit par la méthode du contact, c'est-à-dire au pinceau, soit par la méthode du moulage basse pression au sac , avec injection de résine sous le sac qui sera tendu tout autour de la planche.The fabrics being put in place, their impregnation with resin will be done either by the contact method, that is to say with a brush, or by the method of low pressure molding in the bag, with injection of resin under the bag which will be stretched all around the board.
Ira finition qui ne sera pas nécessaire dans le cas d'un moulage au sac se fera autrement par ponçage de la surface et recouvrement de résine, enduit et peinture. Ira finishing which will not be necessary in the case of a bag molding will be done otherwise by sanding the surface and covering with resin, coating and painting.
Le procédé de fabrication décrit ci-dessus n'a aucun caractère limitatif et l'on peut imaginer d'autres procédées de réalisation arrivant au même résultat, soit par exemple la mise à la Dresse d'un sandwich composé d'un bloc de mousse préalablement enduit sur le bord ou en totalité de tissu imprégné de résine encore liquide et de deux plaques constituant les coques supérieures et inférieures. The manufacturing process described above has no limiting character and one can imagine other production processes achieving the same result, for example the placing in the dresse of a sandwich composed of a block of foam. previously coated on the edge or entirely of fabric impregnated with still liquid resin and two plates constituting the upper and lower shells.
le dessin annexé représentant une coupe de planche à voile, illustre à titre d'exemple un mode de réalisation de coque conforme à la présente invention. the accompanying drawing showing a section of windsurfing board, illustrates by way of example an embodiment of the hull according to the present invention.
Telle qu'elle est représentée la coque comprend principalement, collées sur un bloc de mousse 1 des plaques 2 et 3 dans les zones à faible courbure et des tissus 4 enduits de résine thermodurcissable 5 dans les zones non recouvertes par les plaques et sous les bords de celles-ci.As shown, the shell mainly comprises, glued to a block of foam 1, plates 2 and 3 in the areas with low curvature, and fabrics 4 coated with thermosetting resin 5 in the areas not covered by the plates and under the edges. of these.
Le procédé, objet de l'invention, permet de réaliser tous les objets comportant de grandes surfaces à faible courbure et de petites surfaces à forte courbure, qui devront de plus être résistant, lé ger et étanche. Citons à titre d'exemple les planches à voile, planche de surf, radeaux, bateaux, élements décoratifs, plafond et panneaux d ' extérieur The method which is the subject of the invention makes it possible to produce all the objects comprising large surfaces with small curvature and small surfaces with strong curvature, which must moreover be resistant, light and waterproof. Examples include windsurfing boards, surfboards, rafts, boats, decorative elements, ceilings and outdoor panels
Claims (18)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7918073A FR2460836A1 (en) | 1979-07-12 | 1979-07-12 | Wind-surfer hulls of foam enclosed by semi-rigid panels and strips - using adhesive bonded joints for simplicity |
FR7919403A FR2462334A2 (en) | 1979-07-12 | 1979-07-27 | Sail-board hull filled with polyeyrathene foam - moulded in frame having required hull profile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7918073A FR2460836A1 (en) | 1979-07-12 | 1979-07-12 | Wind-surfer hulls of foam enclosed by semi-rigid panels and strips - using adhesive bonded joints for simplicity |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2460836A1 true FR2460836A1 (en) | 1981-01-30 |
Family
ID=9227790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7918073A Withdrawn FR2460836A1 (en) | 1979-07-12 | 1979-07-12 | Wind-surfer hulls of foam enclosed by semi-rigid panels and strips - using adhesive bonded joints for simplicity |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2460836A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2509685A2 (en) * | 1976-08-17 | 1983-01-21 | Sodistra | Boat for navigating rivers - has hull bottom and side panels of cellular plastics material coated with stratified plastics |
FR2524287A1 (en) * | 1982-03-31 | 1983-10-07 | Bonnet Michel | Floating chair of rigid polyester esp. enclosing expanded polyurethane - large enough for dry or wet buoyancy |
WO1995010665A1 (en) * | 1993-10-08 | 1995-04-20 | Ryan Dale B | Fiberglass bridge system and molded core |
US7575493B2 (en) * | 2005-06-27 | 2009-08-18 | Wah Kan Cheung | Thermoformed sports board |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2068336A5 (en) * | 1970-10-14 | 1971-08-20 | Thebault Jean | Unsinkable small boat |
GB1440177A (en) * | 1975-02-08 | 1976-06-23 | Shacklady J | Method for making boats or other structures from glass fibre reinforced plastic without the use of moulds |
-
1979
- 1979-07-12 FR FR7918073A patent/FR2460836A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2068336A5 (en) * | 1970-10-14 | 1971-08-20 | Thebault Jean | Unsinkable small boat |
GB1440177A (en) * | 1975-02-08 | 1976-06-23 | Shacklady J | Method for making boats or other structures from glass fibre reinforced plastic without the use of moulds |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2509685A2 (en) * | 1976-08-17 | 1983-01-21 | Sodistra | Boat for navigating rivers - has hull bottom and side panels of cellular plastics material coated with stratified plastics |
FR2524287A1 (en) * | 1982-03-31 | 1983-10-07 | Bonnet Michel | Floating chair of rigid polyester esp. enclosing expanded polyurethane - large enough for dry or wet buoyancy |
WO1995010665A1 (en) * | 1993-10-08 | 1995-04-20 | Ryan Dale B | Fiberglass bridge system and molded core |
US7575493B2 (en) * | 2005-06-27 | 2009-08-18 | Wah Kan Cheung | Thermoformed sports board |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1475303B1 (en) | Surfboard and method for its production | |
US4118814A (en) | Manufacture of boat hulls and other hollow articles | |
US5520765A (en) | Method of manufacturing a hollow molding | |
US3929549A (en) | Surfboard construction | |
US3802010A (en) | Surfboard construction | |
EP2552671B1 (en) | Method for coating a core of an arbitrary shape by thermoforming, automatic machine for the implementation thereof and finished product obtained by such a method | |
EP0526353B1 (en) | Method for manufacturing a complex moulded structure, especially a ski, and structure obtained with such a method | |
US4261778A (en) | Method of producing skis | |
FR2833565A1 (en) | METHODS OF MANUFACTURING A STRUCTURAL SUB-ASSEMBLY AND A SLIDING BOARD: STRUCTURAL SUB-ASSEMBLY AND SLIDING BOARD OBTAINED BY SUCH A METHOD | |
FR2460836A1 (en) | Wind-surfer hulls of foam enclosed by semi-rigid panels and strips - using adhesive bonded joints for simplicity | |
US4955839A (en) | Oar for racing shells and method of making same | |
US6790402B2 (en) | Method of making complex shaped articles | |
CH395774A (en) | Method of constructing a light craft and craft obtained by this process | |
US2426729A (en) | Boat and boat construction | |
FR2567799A1 (en) | Process for the production of patterns (models) and tooling for thermoforming and device for its implementation | |
FR2863582A1 (en) | Sports board manufacturing procedure uses foam core blank thermoformed and compressed before covering with outer skin | |
FR2887846A1 (en) | Manufacturing procedure for curved structure such as boat hull uses adhesive-coated layers held together by suction inside supple envelope as the are bent | |
AU2001240336B2 (en) | Method of manufacturing a watercraft | |
FR2462334A2 (en) | Sail-board hull filled with polyeyrathene foam - moulded in frame having required hull profile | |
FR2702413A1 (en) | Process for constructing composite panels, in particular boat hulls | |
FR2534188A1 (en) | Vacuum manufacturing process for sports boards, such as surfboards, sailboards, skateboards. | |
JPS594297B2 (en) | Saddle and its manufacturing method | |
JPS5826456B2 (en) | Manufacturing method for top plate with sink | |
JP4126255B2 (en) | Hard polyurethane laminate | |
CA1076013A (en) | Manufacture of fibre reinforced foam shells |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |