Invention Grant
US08307685B2 Multi-directionally swept beam, roll former, and method 有权
多向扫掠梁,轧辊成型机和方法

Multi-directionally swept beam, roll former, and method
Abstract:
A high-strength beam includes first and second sections bent in opposite directions as part of a roll-forming process. A frame includes side frame members incorporating the double-bent beam and at least one energy management tube attached to the beam. In one form, the beam is tubular and has a cross-sectional dimension of greater than 25 mm and a material strength of at least about 60 KSI tensile strength. A roll form apparatus includes a roll former device and a sweep station in-line with the roll former device for sweeping the continuous beam in first and second opposing directions. Also, a method of roll-forming comprises steps of: roll-forming a sheet of material into a continuous beam and sweeping first and second sections of the beam in opposite directions.
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