초록 ▼

The nut and bolt connection between bent metal columns and shelves: is easy to assembly because the bolt apertures through the shelf skirts are spaced downwardly from the shelf main planar support surface a distance sufficient to permit easy finger access for the nut; is easy to assembly because the

The nut and bolt connection between bent metal columns and shelves: is easy to assembly because the bolt apertures through the shelf skirts are spaced downwardly from the shelf main planar support surface a distance sufficient to permit easy finger access for the nut; is easy to assembly because the skirt includes a return bend portion forming an upwardly facing nut locking surface to prevent rotation of the nut during assembly; is secure because the skirt is formed of spaced apart walls that will compress and bias the nut, bolt assembly, particularly with an interlocking upper portion of the walls to provide for symmetrical compressions; is secure due to the columns being biased or stressed during assembly to bias the nut and bolt threads; and is strengthened in the column margins by bent portions that also increase safety.

대표청구항 ▼

Shelving, comprising: a plurality of bent sheet metal columns to be vertically arranged in spaced parallel relationship, and each having at least one sheet metal side wall having at least one horizontal aperture; at least one bent sheet metal shelf having a main planar support portion to be horizont

Shelving, comprising: a plurality of bent sheet metal columns to be vertically arranged in spaced parallel relationship, and each having at least one sheet metal side wall having at least one horizontal aperture; at least one bent sheet metal shelf having a main planar support portion to be horizontally arranged within said columns, and an integrally formed generally vertically extending skirt portion having a horizontal aperture therethrough to be aligned with the horizontal aperture in an adjacent one column side wall for receiving a threaded bolt therethrough so that a nut threaded on the bolt will supportingly clamp said shelf on said one column; said skirt portion including an upper portion integral in one piece with the sheet metal of said planar support portion, a depending outer wall portion, an inwardly bent sheet metal lower return portion forming an upwardly facing nut locking surface spaced from said aperture in said skirt portion a distance substantially equal to the minimum nut width as measured perpendicular to the nut axis, and said aperture in said skirt portion being spaced from the adjacent lowermost surface of said planar support portion, a distance substantially greater than said first mentioned distance, so that a nut may be easily initially threaded onto a bolt passing through aligned apertures in said skirt portion and column side wall will not thereafter turn when tightening and will hold against turning only due to positive interference with said locking surface.