Composite bar
AssigneeGebruder Kommerling Kunststoffwerke GmbH
InventorDieter Haffer
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Abstract
The invention relates to a composite bar for example for window or door frames or shutters comprising a plastic hollow profile bar with an inner and outer surface. Adjacent said surfaces substantially parallel thereto a metal flange is inserted into the interior of the plastic hollow profile bar. To increase the resistance to bending of this frame with respect to forces perpendicular to the window pane or door leaf without substantially reducing the thermal insulation the two metal flanges are connected together in shear-transmitting manner without metallic contact.
Claims14
In a composite bar, in particular for window frames or sashes, door frames and shutter, comprising a plastic hollow profile bar and an inner reinforcing bar which is inserted in the cavity of said hollow profile of said plastic bar after said plastic bar is formed, which bears on two opposite sides of said plastic hollow profile bar and which comprises in the vicinity of each of said sides a flange, the two flanges being connected together in a force-transmitting manner, the improvement that the two opposite flanges of the reinforcing bar consist of metal and are connected to each other non-metallically by at least one plastic bridge for transmitting forces, especially shear forces, between said two opposite metal flanges, said at least one plastic bridge engaging directly the opposite metal flanges.
Dependencies are inferred from the claim text.