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US 4,157,228 AGranted
Locking tab for hook-in type shelving
OwnerPeter G. Hammerschlaginventor
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OwnerPeter G. Hammerschlaginventor
Estimating the term…
An improved locking tab for horizontal components of hook-in type shelving, of the kind that is integral with the horizontal components and bent into the upper part of one of the slots of the posts, this locking tab having: (1) an upper surface that is slanted backwards a certain amount so that this surface is perpendicular with the centerline of the port or slightly slanted backwards when the locking tab is bent into the locked position, thus preventing that the locking tab is bent back by shaking of the shelving. (2) a secondary tab with a shoulder surface abutting the post when the tab is bent into the locked position, and a surface away from the post such that the end of a screwdriver can be placed between the latter surface and the post and twisted to bend the locking tab back into its original position, thus making it easy to disassemble the shelving.
A shelving assembly comprising vertical posts of sheet metal or the like having at least one wall with a plurality of slots in said wall spaced from each other along the length of the post;
A locking tab as claimed in claim 4, but with a secondary tab having in addition to a shoulder surface abutting the post when the tab is bent forward into the locked position, a second surface adjoining the latter abutting surface at substantially a right angle to said abutting surface and in a direction away from the post and in addition a third surface adjoining the second surface at substantially a right angle in a direction upwards and substantially parallel to the post after the locking tab is bent into the locked position, allowing in a situation with the same space limitations insertion of a larger screwdriver for bending back the locking tab than is possible with the design claimed in claim 7.
A locking tab as claimed in claim 2, but with a secondary tab having in addition to a shoulder surface abutting the post when the tab is bent forward into the locked position, a second surface adjoining the latter abutting surface at substantially a right angle to said abutting surface and in a direction away from the post and in addition a third surface adjoining the second surface at substantially a right angle in a direction upwards and substantially parallel to the post after the locking tab is bent into the locked position, allowing in a situation with the same space limitations insertion of a larger screwdriver for bending back the locking tab than is possible with the design claimed in claim 6.
Dependencies are inferred from the claim text.