B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
153/43
B21D 11/10 (2006.01) B21D 7/022 (2006.01) E06B 3/673 (2006.01)
Patent
CA 1281620
APPARATUS FOR BENDING STRUCTURAL METAL RAILS Abstract The invention relates to an apparatus for bending structural metal rails, preferably rails for multi-glazed windows, and gives instructions for a bending unit (20) having two wring- ing heads (6) which can be displaced relative to the width of the rail, for in an open position to allow the infeed of rails (5) having various width, and in an attracted position to clamp a portion of the rail (5) for the bending thereof by turning the wringing heads (6). Since each wringing head (6) is provided with a protrusion (6a) having an edge (6b) serving to position the rail (5) upon the closing of the wringing head (6) and to support the rail (5) during the bending operation, there is also defined a space (6c) bet- ween the protrusions (6a), said space (6c) defining an in- feed path for further supply of rail (5) immediately after a bending operation and after the opening of the wringing heads (6), so that the infeed of a further length of rail takes place synchronously with the return movement of the wringing heads (6) to the starting position for another ben- ding operation.
533187
Oyen Wiggs Green & Mutala Llp
Rjukan Metall A/s
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