A fibre-reinforced resin structure having hollow cross...

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 70/30 (2006.01) B29C 70/44 (2006.01) B29C 70/48 (2006.01) B29C 70/54 (2006.01) B29C 70/86 (2006.01)

Patent

CA 2347717

A hollow structure of a fiber-reinforced resin having: (A) at least one opening, and a structure body having in an inner portion thereof a hollow portion a maximum width of which is larger than that of the opening, (B) the structure body being formed out of a fiber-reinforced resin obtained by impregnating reinforced fibers with a synthetic resin, (C) the structure body having a shape of a non-rotating body, in which an inner maximum width F of the hollow portion is not smaller than 0.5 m, a ratio F/f of the inner maximum width F of the hollow portion to a maximum width <u>f</u> of the opening being within a range of 1.1-500, characterized in that: (D) the structure body is formed into an integral body with substantially no joint portion throughout, this structure being used for a transportation machine, such as an aircraft and an automobile, and a container.

L'invention concerne une structure creuse en résine renforcée par des fibres, (A) ayant au moins une ouverture et un corps de structure présentant, dans sa partie intérieure, une portion creuse dont la largeur maximale est supérieure à celle de l'ouverture, (B) le corps de la structure est formé à partir d'une résine renforcée par des fibres obtenu en imprégnant des fibres renforcées d'une résine synthétique, (C) le corps de la structure présente la forme d'un corps, qui n'est pas un corps de révolution, dans lequel une largeur maximale intérieure F de la portion creuse n'est pas inférieure à 0,5 m, le rapport F/f de la largeur maximale intérieure F de la portion creuse à une largeur maximale f de l'ouverture étant compris entre 1,1 et 500, caractérisée en ce que (D) le corps de la structure est constitué par un corps d'une seule pièce, sensiblement exempt de zones formant des joints, cette structure étant utilisée comme engin pour le transport, par exemple, aéronef ou automobile, ou comme conteneur.

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