| 摘要 |
This invention refers to betterments to composite sheet metal shelvings with a relatively limited thickness, fitted with up-rights and cross-members, betterments, that essentially are characterised by the said up-rights being structurally "T" -shaped and having numerous "teeth", made by cutting and without removing material on the shaped "wings" of the said "T", each one of the teeth has a side converging towards the upper horizontal face, being drawn and are spaced slightly and substantially parallel to the said wings, engaging on the teeth thereof, assisted by the said converging side and hooking thereto, " cavities" pre-arranged on the opposite ends of the cross-members, cavities that have slight projections uppermost that contrast both with the upper side of the respective inserted tooth, and side-ways, with the said shapes of the wings, the whole complex is designed so that the connections between the up-rights and the cross-members ensure perfect stability and high mechanical resistance of the said shelvings, as well as hiding the said connections.
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