Tool and method for joining sidelapped joints of deck panels

B - Operations – Transporting – 26 – F

Patent

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Details

B26F 1/14 (2006.01) B21D 28/32 (2006.01) B21D 31/02 (2006.01) B21D 39/02 (2006.01) B21D 39/03 (2006.01) B23D 29/00 (2006.01) B23P 11/00 (2006.01) E04B 5/10 (2006.01) E04B 5/43 (2006.01) E04D 3/362 (2006.01) E04D 15/00 (2006.01)

Patent

CA 2639964

A punching tool (22) for forming an attachment in a side-lapped seam (20) of steel decking (10) includes four cutting jaws (40) each having a cutting edge (80, 84, 88, 92). Two jaws (78, 86) are positioned against one side of the seam, and two jaws (82, 90) are positioned on the opposite side of the seam. An actuator (54) selectively pivots the cutting edges of opposing jaws generally toward each other to a closed position, driving the cutting edges of a first pair of jaws (78, 82) partially past each other for cutting a first slot (65) through the seam, and driving the cutting edges of a second pair of jaws (86, 90) partially past each other for cutting a second slot (66) through the seam. Also disclosed are a method for forming such an attachment, as well as the attachment structure which results therefrom.

La présente invention concerne un outil de poinçonnage (22) servant à former une fixation dans un joint à chevauchement latéral (20) de platelage en tôle (10) qui comprend quatre mâchoires de coupe (40) ayant chacune une arête de coupe (80, 84, 88, 92). Deux mâchoires (78, 86) sont positionnées contre un côté du joint, et deux autres mâchoires (82, 90) sont positionnées sur le côté opposé du joint. Un positionneur (54) fait pivoter sélectivement les arêtes de coupe des mâchoires opposées généralement l'une vers l'autre en une position fermée, ce qui fait passer, d'une part, les arêtes de coupe de la première paire de mâchoires (78, 82) partiellement le long l'une de l'autre afin de découper une première encoche (65) dans le joint, et, d'autre part, les arêtes de coupe d'une deuxième paire de mâchoires (86, 90) partiellement le long l'une de l'autre afin de découper une deuxième encoche (66) au travers du joint. La présente invention concerne aussi un procédé pour réaliser ce type de fixation ainsi que la structure de fixation produite.

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