A joint for sheet material and a method of joining sheet...

F - Mech Eng,Light,Heat,Weapons – 16 – B

Patent

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F16B 17/00 (2006.01) B21D 39/03 (2006.01) F16B 21/02 (2006.01)

Patent

CA 2337148

A joint for joining a first metal sheet (10) to a second metal sheet (30) comprises a plurality of projections (18) on the edge (12) of the first metal sheet (10). The projections (18) are symmetrical about a plane extending perpendicularly to the plane of the first metal sheet (10). The symmetrical projections (18) are rotatable about an axis (X), the axis (X) is arranged in the plane of the first metal sheet (10) and in the plane extending perpendicularly to the first metal sheet (10). A plurality of slots (32) are provided through the second metal sheet (30). The symmetrical projections (18) extend through the slots (32) in the second metal sheet (30) and the symmetrical projections (18) are rotated such that the symmetrical projections (18) are arranged in the plane perpendicular to the plane of the first metal sheet (10) to clamp the second metal sheet (30) between the edge (12) of the first metal sheet (10) and symmetrical projections (18).

Joint servant à réunir une première feuille métallique (10) à une deuxième feuille métallique (30) et comprenant une pluralité de saillies (18) situées sur le bord (12) de la première feuille métallique (10). Ces saillies (18) sont symétriques autour d'un plan s'étendant perpendiculairement par rapport au plan de la première feuille métallique (10). Ces saillies symétriques (18) peuvent tourner autour d'un axe (X) situé dans le plan de la première feuille métallique (10) et dans le plan s'étendant perpendiculairement à la première feuille métallique (10). Une pluralité de fentes (32) traverse la deuxième feuille métallique (30). On passe les saillies symétriques (18) à travers les fentes (32) de la deuxième feuille métallique (30) et on tourne ces saillies symétriques (18), de façon à les placer dans le plan perpendiculaire au plan de la première feuille métallique (10) afin d'agrafer la deuxième feuille métallique (30) entre le bord (12) de la première feuille métallique (10) et les saillies symétriques (18).

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