Roll-Out Safety System

Abstract

An unrollable safety system has a box ( 15 ) accommodating a net ( 11 ) which contains a device with a rotatable shaft on which the net ( 11 ) can be rolled up and out. One or more supports ( 12, 25 ) can be positioned specific distances away from the box ( 15 ). Moreover, at least one longitudinal element ( 16 ), preferably a rope, that can be pulled out of the box ( 15 ) and can be held by the positioned supports ( 12, 25 ) is provided on which the net ( 11 ) is rolled out and held like a curtain by means of brackets ( 21 ). The net ( 11 ), as meshwork, is flexible, and so designed to be able to roll up, it being produced from a plurality of wires, ropes and/or cords bent in coil shapes. The wires ( 13 ), ropes and/or cords bend in coil shapes are preferably aligned perpendicularly to the direction of pulling out the net ( 11 ) so that the net can be rolled up on the shaft. A mobile or stationary barrier over shorter or longer distances, with a high degree of stability and with simple and rapid assembly and dismantling has thus been produced.

1 . An unrollable safety system having a box ( 15 ) accommodating a net ( 11 ) which contains a device with a rotatable shaft on which this net ( 11 ) can be rolled up and out such that one or more supports ( 12 ,  25 ) can be positioned specific distances away from the box ( 15 ), and that at least one longitudinal element ( 16 ), preferably a rope, that can be pulled out of the box ( 15 ) and can be held on the positioned supports ( 12 ,  25 ), is provided, on which the net ( 11 ) is held moveably, like a curtain, by means of brackets ( 21 ), characterised in that the at least one-layered net ( 11 ), as meshwork, is flexible and so designed such that it can be rolled up, it being produced from a plurality of wires, ropes and/or strands bent in coil shapes and preferably respectively made of high-strength steel, the wires ( 13 ), ropes and/or strands bent in coil shapes preferably being aligned perpendicularly to the direction of pulling out the net ( 11 ) so that the net can be rolled up on the shaft. 
     
     
         2 . The unrollable safety system according to  claim 1 , characterised in that the wires ( 13 ), ropes and/or strands are produced from a high-strength steel with a tensile strength of at least 1,000 N/mm 2 . 
     
     
         3 . The unrollable safety system according to  claim 1 , characterised in that on the upper end of the net ( 11 ) slots with brackets ( 21 ) attached specific distances apart are designed such that when the net ( 11 ) is rolled out, they slide over the longitudinal element ( 16 ) which has been pulled out through sliding elements assigned to the brackets ( 21 ) and are disposed moveably on the supports on the longitudinal element ( 16 ) so that the net can be rolled out simply and without stopping. 
     
     
         4 . The unrollable system according to  claim 3 , characterised in that the brackets ( 21 ) attached to the net ( 11 ) have guide rollers ( 22 ) as sliding elements which can respectively be rolled out over the longitudinal element ( 16 ) which has been pulled out and is held on the supports ( 12 ), the brackets being U-shaped in form and attached by a sidepiece to the net ( 11 ). 
     
     
         5 . The unrollable safety system according to  claim 4 , characterised in that the supports ( 12 ) respectively have on the upper end a protective hook ( 12 ′) and centering means ( 16 ′) for holding the longitudinal element ( 16 ) such that the brackets attached to the net ( 11 ) can slide without any contact through these hooks ( 12 ′) over the longitudinal element ( 16 ). 
     
     
         6 . The unrollable safety system according to  claim 1 , characterised in that the supports ( 12 ,  25 ) can be anchored to the ground or be provided with a foot for positioning without fixing to the ground, depending on the application. 
     
     
         7 . The unrollable safety system according to  claim 1 , characterised in that one of the supports ( 12 ) forms the end support ( 25 ) on which the end of the longitudinal element ( 16 ) and the end of the net ( 11 ) can be fixed, this longitudinal element ( 16 ) and the net ( 11 ) being braceable by means of a respective bracing device after fixing so that the net held on this longitudinal element is additionally stabilised. 
     
     
         8 . The unrollable net system according to  claim 7 , characterised in that in a mobile embodiment the end support ( 25 ) has a base which is provided with a large weight, for example a concrete slab. 
     
     
         9 . The unrollable safety system according to  claim 1 , characterised in that the box ( 15 ), the net ( 11 ) and, if appropriate, the supports ( 12 ,  25 ) can be used upright, on an incline or horizontally or suspended. 
     
     
         10 . The unrollable safety system according to  claim 1 , characterised in that the shape of the net can be designed in a variety of forms, for example with different heights over its length. 
     
     
         11 . The unrollable safety system according to  claim 1 , characterised in that the net is designed with a number of layers and/or as a sandwich structure. 
     
     
         12 . The unrollable safety system according to  claim 1 , characterised in that one or a number of additional rollable materials can be rolled up or out in the box, such as for example advertising posters. 
     
     
         13 . The unrollable safety system according to  claim 1 , characterised in that the latter can be used as a thoroughfare barrier, as rockfall protection or similar. 
     
     
         14 . The unrollable safety system according to  claim 1 , characterised in that the latter can be used as defensive protection against projectiles of all types, for example RPG 7 hollow charge weapons. 
     
     
         15 . The unrollable safety system according to  claim 1 , characterised in that the net is equipped with at least one heat-, cold- or wind-arresting protection element. 
     
     
         16 . A box for an unrollable net system according to  claim 1 , characterised in that the box ( 15 ) is designed such that it can be transported, preferably with a fork lift truck, and that it is of dimensions such that all of the required implements, including in particular the supports ( 16 ,  25 ), can be enclosed within it. 
     
     
         17 . The box according to  claim 16 , characterised in that a heavy material, preferably concrete, is contained in the base of the box ( 15 ) by means of which this box achieves increased stability.