Method and device for reinforcing a hollow section with a...

B - Operations – Transporting – 21 – D

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Details

B21D 28/28 (2006.01) B21D 49/00 (2006.01) B21D 26/02 (2006.01)

Patent

CA 2547729

The invention relates to a method and a device for reinforcing a hollow section (1, 24) with a sealed periphery. According to the invention, an opening (2) is created in the periphery of said section and a reinforcement component that has been introduced into the interior (8, 25) of the hollow section is joined to the opposite wall (11, 27) of the hollow section from the opening (2). The aim of the invention is to obtain a reinforcement of the hollow profile (1, 24) in the least complex manner. To achieve this, a wall section (7, 23) of the hollow profile (1, 24) that forms the reinforcement component is cut from the location of the opening (2) that is to be created up to a peripheral zone. The wall section (7, 23), which continues in one piece from the edge (9) of the opening is bent into the hollow section (1, 24), thus forming the opening (2). The length of the wall section (7, 23) is proportioned in relation to the width of the hollow section (1, 24) in such a way that the free end (10, 26) of the wall piece (7, 23) at least comes into contact with the opposite wall (11, 27) of the hollow section and said free end (10, 26) is subsequently joined to the wall (11, 27).

L'invention concerne un procédé et un dispositif pour rigidifier un profilé creux (1, 24) fermé en périphérie. Selon l'invention, une ouverture (2) est ménagée au niveau de la périphérie du profilé creux, puis un composant rigidifiant introduit à l'intérieur (8, 25) du profilé creux est assemblé avec la paroi (11, 27) du profilé creux qui est opposée à l'ouverture (2). L'objectif de cette invention est de rigidifier le profilé creux (1, 24) de la manière la moins complexe possible. A cet effet, à l'emplacement de l'ouverture (2) à ménager, un morceau de paroi (7, 23) du profilé creux (1, 24) qui forme le composant rigidifiant est découpé jusqu'à une zone de la périphérie. Le morceau de paroi (7, 23) qui pend d'un seul tenant à partir du bord (9) de l'ouverture est courbé vers l'intérieur du profilé creux (1, 24) de manière à former l'ouverture (2). La longueur du morceau de paroi (7, 23) est dimensionné par rapport à la largeur du profilé creux (1, 24) de manière que l'extrémité libre (10, 26) du morceau de paroi (7, 23) touche au moins la paroi de profilé creux (11, 27) opposée, l'extrémité libre (10, 26) étant ensuite fixée sur ladite paroi de profilé creux (11, 27).

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