B-SHAPED BEAM WITH INTEGRALLY-FORMED RIB IN FACE

A B-shaped reinforcement beam is formed from a sheet of material to include vertically spaced upper and lower tubular sections, with a channel-shaped rib formed centrally in the unsupported portion of the front wall over each tube section. The ribs acts to stiffen and stabilize the front wall, causi...

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Bibliographische Detailangaben
Hauptverfasser:	GLASGOW SCOTT C, JOHNSON THOMAS J
Format:	Patent
Sprache:	eng
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	A B-shaped reinforcement beam is formed from a sheet of material to include vertically spaced upper and lower tubular sections, with a channel-shaped rib formed centrally in the unsupported portion of the front wall over each tube section. The ribs acts to stiffen and stabilize the front wall, causing the actual bending strength of the B beam to be much closer to expected theoretical values. In one form, the ribs have a vertical dimension about 33%-50% of a height of the tubular sections and a depth of about 50%-100% of the rib's height. The rib is particularly effective when the material is less than 2.2 mm, more than 80 KSI, and/or has a significant height-to-depth ratio such as 3:1.