Protective cable nets system (pcns)

Abstract

A combined net structure is disclosed that comprises a non-planar coarse net with a grid-like structure comprising a plurality of coarse cables wherein longitudinal coarse cables intersect with latitudinal coarse cables to form a plurality of coarse cells and cutouts of a fine net attached to the coarse net, wherein the fine net comprises a plurality of adjacent fine cables. Each non-edge fine cable is attached to two adjacent fine cables on each of its sides at a plurality of locations along their lengths forming attachment points, wherein the fine net is arranged in a form of an array of fine quadrangular cells with said attachment points constituting the vertices of the fine quadrangular cells. System that comprises the combined net structures are disclosed as well.

1 . A combined net structure comprising:
 a non-planar coarse net with a grid-like structure comprising a plurality of coarse cables wherein longitudinal coarse cables intersect with latitudinal coarse cables to form a plurality of coarse cells;   cutouts of a “fine net” attached to said coarse net, wherein said “fine net” comprises a plurality of adjacent fine cables (forming a fine cable net); a fabric; a membrane (soft or solid); solid tiles; stuffed hollow tiles;   fluid filled hollow tiles;   wherein each non-edge fine cable is attached to two adjacent fine cables on each of its sides at a plurality of locations along their lengths forming attachment points, wherein said fine cable net is arranged in a form of an array of fine quadrangular cells with said attachment points constituting the vertices of said fine quadrangular cells.   
     
     
         2 . The combined net structure according to  claim 1 , wherein each “fine net” cutout is substantially coextensive in shape with one or more coarse cells. 
     
     
         3 . The combined net structure according to  claim 2 , wherein all the coarse cells are attached to “fine net” cutouts. 
     
     
         4 . The combined net structure according to  claim 2 , wherein the “fine net” cutouts are connected to the coarse net such that portions of a fine cable net or edges of the fabric, the membrane (soft or solid) or the solid tiles of said “fine net” cutouts are attached to corresponding portions of a coarse cable of the coarse net by means of connecting elements that hold said “fine net” and said coarse cable together. 
     
     
         5 . The combined net structure according to  claim 1 , wherein the coarse net further comprises connecting elements that connect the intersecting longitudinal coarse cables with the latitudinal coarse cables at the intersecting points. 
     
     
         6 . The combined net structure according to  claim 1 , wherein the fine quadrangular cells are square or rhombic cells. 
     
     
         7 . The combined net structure according to  claim 1 , wherein the distances between two adjacent attachment points of two adjacent non-edge fine cables are substantially the same; and wherein the imaginary line which bisects and is perpendicular to the imaginary line connecting two adjacent attachment points of two adjacent non-edge fine cables passes through an attachment point of one of said two adjacent non-edge fine cables with its other adjacent fine cable. 
     
     
         8 . The combined net structure according to  claim 1 , further comprising one or more edge cables attached to the perimeter of the coarse net. 
     
     
         9 . The combined net structure according to  claim 8 , wherein the diameter of the edge cables is between 15 mm and 50 mm. 
     
     
         10 . The combined net structure according to  claim 1 , wherein the diameter of the coarse cables is between 8 mm and 40 mm. 
     
     
         11 . The combined net structure according to  claim 1 , wherein the diameter of the fine cables is between 3 mm and 6 mm. 
     
     
         12 . The combined net structure according to  claim 6 , wherein the square or rhombic cell diagonals are between 20 mm and 60 mm. 
     
     
         13 . The combined net structure according to  claim 1 , wherein the longitudinal coarse cables and the latitudinal coarse cables have predetermined lengths and are attached to each other at pre-calculated locations marked along their lengths. 
     
     
         14 . The combined net structure according to  claim 13 , wherein the predetermined lengths are such that the coarse net formed comprises a 3-dimensional structure. 
     
     
         15 . The combined net structure according to  claim 6 , wherein an imaginary line connecting two adjacent attachment points of two adjacent non-edge fine cables is parallel to the longitudinal coarse cables or to the latitudinal coarse cables. 
     
     
         16 . A system comprising:
 at least one column;   the combined net structure according to  claim 1 ;   plurality of anchors;   wherein the combined net is attached to said column and   to said plurality of anchors.   
     
     
         17 . The system according to  claim 16 , wherein the combined net structure is quadrangular and one of its vertices is attached to the column, and wherein said system comprises three anchors and three vertices of said combined net structure are each attached to one of said anchors. 
     
     
         18 . The system according to  claim 16 , wherein the column is height adjustable. 
     
     
         19 . The system according to  claim 16 , wherein the anchors are concrete blocks. 
     
     
         20 . The system according to  claim 16 , wherein the system comprises one or more additional combined net structures;
 wherein the one or more additional combined net structures are attached to the column and to the plurality of anchors.   
     
     
         21 . The system according to  claim 20 , wherein the one or more additional combined net structures are quadrangular;
 wherein one of the one or more additional combined net structure vertices is attached to the column and the other one or more additional combined net structure vertices are attached to the anchors.   
     
     
         22 . The system according to  claim 16 , comprising two columns and two anchors; wherein the combined net structure is quadrangular comprising a first vertex, a second vertex, a third vertex and a fourth vertex;
 wherein said first vertex is attached to a first column and said second vertex is opposite to said first vertex and is attached to a second column, and wherein said third vertex and fourth vertex are each attached to one of said two anchors.   
     
     
         23 . The system according to  claim 22 , further comprising one or more additional quadrangular combined net structures, two columns and two anchors;
 wherein each of said one or more additional combined net structures is quadrangular and comprises a first vertex, a second vertex, a third vertex and a fourth vertex;   wherein the one or more additional quadrangular combined net structures first vertex is attached to the column; and   wherein the one or more additional quadrangular combined net structures second vertex is opposite to said first vertex and is attached to a second column; and   wherein said third vertex and fourth vertex of said one or more additional quadrangular combined net structures are each attached to one of said two anchors.   
     
     
         24 . A system comprising:
 a. two intersecting arc structures;   b. two parallel arc structures;   c. one arc structure;   d. any combination of arches and columns a combined net structure according to  claim 1 ; wherein the combined net structure is spread over said two intersecting arc structures, two parallel arc structures, one arc structure, any combination of arches and columns.