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US 4,023,683 AGranted
Internally reinforced load carrying member
OwnerWilliam R. Vargoinventor
Life of this patent
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OwnerWilliam R. Vargoinventor
Estimating the term…
A structural member primarily intended for the horizontal and vertical load carry members of industrial storage racks. The member is hollow and has an internal reinforcing web extending across the interior in the plane of the maximum anticipated bending stress and abutting against the walls of the member. The walls on each side of the web are so formed as to provide a pair of opposed channels or grooves on the inside of the member which receive the edges of the web and provide lateral support therefor to prevent the web from buckling sideways under bending stresses in the plane of the web. These edges are preferably spot welded to the walls of the member. When the member is to be used in a storage rack, it is preferably generally rectangular in cross-section with the corners facing the front being angled at approximately 45.degree. to the front surface of the member for a distance of at least one half of the total width of the member so as to deflect mis-aligned articles being placed onto the shelves of the rack. Openings for receiving locking pins on brackets supporting the horizontal load supporting bars are located in the side walls of the posts but spaced substantially from the front and back walls of the post so as to effect a minimum weakening of the members.
A structural member for supporting heavy loads comprised of a hollow rigid member having walls of generally uniform thickness and a reinforcing web extending across the interior of said member between said walls, said walls having at least a pair of external longitudinally extending indentations causing a pair of longitudinally extending beads on the inside of the said walls, means coacting with each of said beads to define therewith a longitudinally extending shallow groove with said grooves being oppositely disposed, the longitidinal edges of said web bearing against the bases of said recesses whereby the sides of said recesses restrict movement of said edges in a direction perpendicular to the plane of said web, whereby said web contributes to the bending strength of said hollow member.
A storage rack for heavy weights comprised of a plurality of horizontally spaced, vertically extending posts and a plurality of vertically spaced horizontal beams extending between adjacent posts, said beams forming a shelf on which weights are to be disposed, said vertical posts being sheet material formed into a generally hollow construction comprised of a front wall of a predetermined width, a pair of deflector walls each extending at an obtuse angle rearwardly from respective edges of said front wall, a pair of side walls extending rearwardly from respective rear edges of said deflector walls and generally parallel to each other and at an obtuse angle to said deflector walls and a pair of back flanges extending transversely towards each other from a respective rear edge of said side walls, wherein said side walls have a longitudinally extending buldge on the inner surface closed spaced from the apex of the angle formed by the junction of said deflector wall and said side walls forming a longitudinally extending recess spaced from said front wall and said back flange, a longitudinally extending web extending between the bases of said recesses and of a width greater than the spacing between said bulges whereby the edges of said web are restricted against movement in a direction perpendicular to the plane of the web.
A vertical post for vertical loads comprised of a length of sheet material of uniform thickness formed to provide:
Dependencies are inferred from the claim text.