Rolling shutter bar

Details Rolling shutter bar Rolling shutter bar

1985-02-27

1986-07-22

Kittle, John E.

Stock material or miscellaneous articles

Composite

Of metal

160232, 160236, 160133, E06B 910

Patent

active

046019537

ABSTRACT:
In a hollow plastic rolling shutter slat coated on the weather side with a metal layer for reducing the heat transfer while retaining the resistance to bending the inner side of the building-side profile wall is also coated with a metal layer, a minimum spacing always being provided between the two metal layers to insure the thermal insulation. The metal layers have at least one surface reflecting thermal radiation or reducing thermal irradiation. For obtaining the necessary resistance to bending the inner transverse webs of the hollow plastic rolling shutter bar are formed in such a manner that they transmit the shear stresses occurring on bending.

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