Splinter protection with optical and thermal functionality

Abstract

The present invention relates to a curtain which is suitable as shatter protection and has optical and thermal functionality. Curtains of this type are required in particular in order to protect buildings for example during terrorist attacks. This fundamentally relates to any type of building, in particular however, office buildings with large areas of glass. The fundamental concept of the present invention is to provide curtains which absorb the huge amount of energy, for example of an explosion, however also irreversible damage of the curtain being able to be accepted. It is thereby essential that the curtain absorbs the acting energy and inter alia prevents any possibly occurring fragments of a glass façade being thrown into the room and being able to injure people there. The curtain is configured for this purpose as an internally situated or externally situated curtain, advantageously as a slatted curtain/shutter or even as a roller blind.

1 . A curtain for the façade of a building,
 wherein   the curtain is configured in such a manner that it is stable under the effect of large pressure forces.   
   
   
       2 . The curtain according to  claim 1 , wherein a large number of bars which are disposed parallel and adjacent and are held together by connecting means to form a two-dimensional structure. 
   
   
       3 . The curtain according to  claim 2 , wherein the bars have hollow chambers for stabilisation on at least one part of their length or they are configured as hollow profiles. 
   
   
       4 . The curtain according to  claim 3 , wherein the hollow chambers or hollow profiles are filled at least in regions with a material. 
   
   
       5 . The curtain according to  claim 4 , wherein the hollow chambers or hollow profiles are filled at least in regions with a liquid, a gel, a plastic material, a foam and/or sand. 
   
   
       6 . The curtain according to  claim 3 , wherein the hollow chambers or hollow profiles are sealed to be liquid-impermeable and/or gas-impermeable. 
   
   
       7 . The curtain according to  claim 2 , wherein the bars have surface regions which extend along the bars and protrude beyond the hollow chambers or the hollow profiles. 
   
   
       8 . The curtain according to  claim 2 , wherein the profile or the cross-section of the bars is configured in such a manner that the bars cannot be stacked or the curtain cannot be moved away, gathered up and/or rolled up. 
   
   
       9 . The curtain according to  claim 2 , wherein the profile or the cross-section of the bars is configured in such a manner that the bars can be stacked or the curtain can be moved away, gathered up, rolled up, shifted and/or folded. 
   
   
       10 . The curtain according to  claim 2 , wherein the bars have an external contour with at least one first surface which extends in the longitudinal direction of the bars and delimits the external contour and a second surface which abuts against the first surface perpendicular to the longitudinal direction of the bars and delimits the external contour,
 the first surface, in anti-clockwise direction/turning to the left, enclosing an angle β with the horizontal and the second surface, in the clockwise direction/turning to the right, enclosing an angle γ with the horizontal.   
   
   
       11 . The curtain according to  claim 1 , wherein there applies for β and γ 70°≦β≦110°, advantageously β=90° and/or 0°≦γ≦85°, advantageously 45°≦β≦85°, advantageously 45°≦β≦60°. 
   
   
       12 . The curtain according to  claim 1 , wherein a third surface which delimits the external contour of the bars abuts against the first surface on the side which is orientated away from the second surface, said surface, in anticlockwise direction (turning to the left), enclosing an angle α with the horizontal. 
   
   
       13 . The curtain according to  claim 12 , wherein there applies for the angle α: −30°≦α≦90°, preferably 0°≦α≦45°, preferably 30°≦α≦40°, preferably α=0°. 
   
   
       14 . The curtain according to  claim 10 , wherein a fourth surface abuts against the second surface on the side which is orientated away from the first surface, said fourth surface, in the clockwise direction/turning to the right, enclosing an angle δ with the horizontal. 
   
   
       15 . The curtain according to  claim 14 , wherein there applies for the angle δ—60°≦δ≦60°, advantageously 0°≦δ≦60°, advantageously 0°≦δ≦25°. 
   
   
       16 . The curtain according to  claim 12 , wherein the first surface, the second surface and the third surface and possibly the fourth surface enclose a hollow space. 
   
   
       17 . The curtain according to  claim 16 , wherein the first surface, the second surface and the third surface form a hollow space with a triangular cross-section. 
   
   
       18 . The curtain according to the preceding claim, wherein the fourth surface (D) protrudes beyond the hollow space formed by the first (B), second (C) and third (A) surface. 
   
   
       19 . The curtain according to  claim 10 , wherein the first, second, third and/or fourth surface is formed by structural elements of the bars. 
   
   
       20 . The curtain according to  claim 10 , wherein the first, second and third surface and possibly the fourth surface represent the envelope for structural elements of the bars. 
   
   
       21 . The curtain according to  claim 20 , wherein the bars respectively have a large number of two-dimensional elements which extend in the longitudinal direction of the bars and are disposed adjacently perpendicular to the surface plane of the curtain the adjacent two-dimensional elements of one bar being connected to each other alternately at their upper edge or at their lower edge. 
   
   
       22 . The curtain according to  claim 21 , wherein the height of the two-dimensional elements reduces in the direction of the outside of the building. 
   
   
       23 . The curtain according to  claim 2 , wherein the bars have folds, beads, edges and/or bends which extend in the longitudinal direction for stabilisation. 
   
   
       24 . The curtain according to  claim 2 , wherein the bars are coated, in particular glued, at least in regions. 
   
   
       25 . The curtain according to  claim 24 , wherein the bars are coated at least in regions with a woven fabric, in particular made of composite material, in particular made of carbon fibres, aramide fibres and/or Kevlar. 
   
   
       26 . The curtain according to  claim 24 , wherein the bars are not coated at bending points. 
   
   
       27 . The curtain according to  claim 24 , wherein the bars are coated only or in particular on the side which is orientated away from the outside of the building in the mounted state. 
   
   
       28 . The curtain according to  claim 24 , wherein the bars are coated only or in particular on flat regions of the bars or on the concave inside of curved regions. 
   
   
       29 . The curtain according to  claim 24 , wherein the bars are coated only or in particular at those regions which are flat before and/or after roller-shaping of the bars and/or are subjected only to pressure or without tension during roller-shaping of the bars. 
   
   
       30 . The curtain according to  claim 2 , wherein the bars have predetermined bending points at least in regions in their longitudinal direction. 
   
   
       31 . The curtain according to  claim 30 , wherein the bars have surface regions which extend along the bars and protrude beyond the main body of the bars and a predetermined bending point, in particular in the form or a bead or omega-bead, being disposed between the main body and the surface regions. 
   
   
       32 . The curtain according to  claim 30 , wherein the surface regions have a width perpendicular to the longitudinal direction of the bars which is greater than or at least equal to the spacing of the main body of two bars from each other in the mounted state of the curtain. 
   
   
       33 . The curtain according to  claim 2 , wherein the bars comprise plastic material, composite material, in particular fibre-reinforced plastic material, and/or metal, in particular metal sheet, in particular aluminium and/or stainless steel, or contain these materials. 
   
   
       34 . The curtain according to  claim 2 , wherein at least the surface which is orientated away from the building in the mounted state of the curtain is configured to be reflective, in particular metallically reflective, highly reflective, diffusely scattering, asymmetrically scattering, painted, in particular painted white, coated or glued with a foil, in particular a foil with a wood appearance, or coated or glued with a real wood veneer. 
   
   
       35 . The curtain according to  claim 2 , wherein at least the surface which is directed towards the building in the mounted state of the curtain is configured painted, in particular painted white, coated or glued with a foil, in particular a foil with a wood appearance or coated or glued with a real wood veneer. 
   
   
       36 . The curtain according to  claim 2 , wherein the bars have, externally at the bottom, a sharp edge in the mounted state of the curtain. 
   
   
       37 . The curtain according to  claim 2 , wherein the surface of the bars which is orientated towards the building interior in the mounted state of the curtain is not situated further inwards with its upper end than with its lower end. 
   
   
       38 . The curtain according to  claim 1 , wherein the surface of the bars which is orientated towards the building interior in the mounted state of the curtain extends vertically. 
   
   
       39 . The curtain according to  claim 1 , wherein a two-dimensional woven fabric, knitted fabric and/or hosiery fabric, the woven fabric, knitted fabric and/or hosiery fabric having or comprising as fibre component glass fibres, carbon fibres, aramide fibres and/or combinations hereof. 
   
   
       40 . The curtain according to  claim 39 , wherein the fibre component is covered with plastic material, metallised, in particular vapour coated with aluminium, and/or painted, in particular painted white. 
   
   
       41 . The curtain according to  claim 29 , wherein the curtain can be rolled up and/or wound up. 
   
   
       42 . The curtain according to  claim 39 , wherein the curtain cannot be rolled up and/or wound up. 
   
   
       43 . The curtain according to  claim 1 , wherein the curtain is mounted at least laterally, at the upper edge and/or lower edge. 
   
   
       44 . The curtain according to  claim 1 , wherein the curtain is mounted elastically and/or deformably. 
   
   
       45 . The curtain according to  claim 1 , wherein the curtain is mounted laterally, at the upper edge and/or at the lower edge in rails, in particular in rails with a C-profile, clamping strips and or nail strips as mounting. 
   
   
       46 . The curtain according to  claim 1 , wherein the curtain is mounted all around in a rigid or stable frame as mounting. 
   
   
       47 . The curtain according to  claim 1 , wherein the mounting is elastic and/or deformable. 
   
   
       48 . The curtain according to  claim 47 , wherein the curtain is mounted all around in a rigid frame which is mounted elastically for its part. 
   
   
       49 . The curtain according to  claim 1 , wherein the curtain is braced laterally, at the top and/or at the bottom. 
   
   
       50 . The curtain according to  claim 1 , wherein the curtain is braced laterally, at the top and/or at the bottom elastically and/or deformably. 
   
   
       51 . The curtain according to  claim 1 , wherein the curtain is braced by means of looped cords. 
   
   
       52 . The curtain according to  claim 1 , wherein the curtain is braced by means of metal threads or strips, woven fabric threads or strips, in particular Kevlar threads or strips, and/or by means of threads or strips made of a plastic material or fibre composite material. 
   
   
       53 . The curtain according to  claim 1 , wherein the curtain is braced by means of strips, the curtain and the strips being riveted to each other.