Roller shutter rod of stable shape and method for its manufacture
AssigneeVereinigte Aluminiumwerke Aktiengesellschaft
InventorHelmuth Schneider
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Abstract
The invention refers to a roller shutter rod of stable shape, consisting of an aluminum strip plastic-coated on one side at least in part, and roll-formed into a hollow section 18 with the coated side inwards, the hollow section featuring upper and lower connecting areas with double-layer aluminum strip and an inside wall 14 as well as an outside wall 13, said hollow section featuring for the increase of the longitudinal stiffness and durability of the roller shutter rod at least one contact point 15, at which at least two aluminum strip layers are bonded with one another.
Claims11
A roller shutter rod of stable shape, comprising
- an aluminum strip forming an outer periphery of said rod, said outer periphery defining a generally rod-shaped structure with a hollow section, said aluminum strip having a plastic coating along one of its sides which faces said hollow section, said outer periphery further defining upper and lower connecting areas wherein said aluminum strip is arranged in a double layer with a thermally consolidated double layer of plastic coating between individual layers of said double layer of aluminum strip, said individual layers of said double layer of aluminum strip in at least one of said upper and lower connecting areas being at least partially bonded to each other via said thermally consolidated double layer of plastic coating.
Dependencies are inferred from the claim text.