Roll formed metal member

E - Fixed Constructions – 04 – C

Patent

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Details

E04C 3/08 (2006.01) E04C 3/09 (2006.01) E04C 3/04 (2006.01)

Patent

CA 2077429

A metal member having at least one edge formation, and a web extending from the edge formation, a plurality of recesses formed in the web at spaced intervals, a plurality of struts extending across the web between adjacent receses, edge portions along either edge of the web, with the struts extending from one said edge portion to the other and merging integrally therewith, flange formations formed from the web around the recesses, and lying at an angle thereto, whereby to form the struts with a generally channel shaped cross section. Also disclosed are triangular openings defining generally curved corners with corner flanges at an oblique angle to the web. Also disclosed are generally three-sided indentations formed in the web edge at the roots of each of the struts.

Cette invention concerne un élément métallique comportant au moins une aile, une âme se prolongeant à partir de l'aile, une série d'évidements espacés dans l'âme, une série de parties profilées faisant toute la hauteur de l'âme entre évidements adjacents, des rebords le long des deux bords de l'âme, les parties profilées allant d'un rebord à l'autre et se fondant dans chacun, des rebords formés dans l'âme même autour des évidements susmentionnés et selon un angle donné, les parties profilées ayant de ce fait une section généralement en U. Cette invention concerne également les ouvertures triangulaires à sommets généralement arrondis et rebords correspondants généralement obliques par rapport à l'âme. Cette invention porte également sur les encoches généralement à trois côtés ménagées aux bords de l'âme, soit à la racine de chacune des parties profilées.

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