Fastening apparatus and method and rivet-type fastener

Details Fastening apparatus and method and rivet-type fastener Fastening apparatus and method and rivet-type fastener

B - Operations, Transporting

23

P

B23P 11/00 (2006.01) B21J 15/04 (2006.01) B23P 19/00 (2006.01) F16B 5/04 (2006.01) F16B 17/00 (2006.01) F16B 19/08 (2006.01)

Patent

CA 2126100

2126100 9311907 PCTABS00022 Fastening apparatus and method for forming a rivet-type fastener are disclosed for joining two pieces together that is particularly suitable for use in constructing a building. The fastening apparatus (14) utilizes an actuating rod (22) preferably driven by a hydraulic cylinder (15) with the rod being inserted through a fastening section (67) and holes (71) in pieces to be fastened. A set of dies (51,57) has one fixed (51) and one pulled (57) by the rod through the holes to form at least one rolled flange or two rolled flanges (78) to form a hollow fastener that secures the pieces together. The rod is automatically returned to an extended position to be ready for the next operation. The fastener has a relatively large inside diameter in relation to the thicknesses of the pieces being fastened to avoid shear of the piece and prevent having the flange deform under load.

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