Collar for installation of barriers onto existing bollards

1. A collar assembly for retrofitting a barrier to one or more bollards, the bollards having a length and a width, said collar assembly comprising:

a barrier;

at least one collar adapted to fit around each of said one or more bollards;

each said collar comprising two or more openings, each said opening configured to receive a barrier mounting device or a securing element interchangeably;

at least one said securing element mounted within said two or more openings to affix said collar to the one or more bollards;

at least one said barrier mounting device mounted within said two or more openings to attach said barrier to the one or more bollards; and

said barrier is mounted to each said barrier mounting device.

2. The collar assembly of claim 1 further comprising a plurality of said collars arranged along the length of each one or more bollards.

3. The collar assembly of claim 1 further comprising said barrier is one of a net, a mesh, a solid barrier, and a gate.

4. The collar assembly of claim 1 further comprising said barrier mounting device is one of an eye bolt, a hinge, a clip, a hook, a latch, a quick connect coupling, and a carabiner.

5. The collar assembly of claim 1 further comprising said securing element is one of a bolt, a pin, a clamp, a screw, and a nail.

6. The collar assembly of claim 1 wherein said collars comprise steel, aluminum, plastic, or combinations thereof.

7. The collar assembly of claim 1 wherein said openings comprise nuts that are bonded, fused, soldered, or welded to said opening.

8. The collar assembly of claim 1 wherein said collar is a unitary piece.

9. The collar assembly of claim 1 wherein said collar comprises multiple pieces held together by fasteners.

10. The collar assembly of claim 1 wherein said collar comprises a sleeve.

11. The collar assembly of claim 1 wherein said one or more collars has a cross-section that is one of a square, a circle, a rectangle, or a triangle.

12. The collar assembly of claim 1 in which said barrier spans between one bollard and a wall.

13. A collar assembly for retrofitting a barrier to two bollards, each bollard having a length and a width and located adjacent but apart from each other, said collar assembly comprising:

a barrier sized to span the distance between the two bollards;

two collars that are sleeves adapted to extend the entire length of each bollard and each said collar mounted to one of the bollards;

each of said collars comprising a plurality of openings configured to interchangeably receive securing elements to affix said collars to each bollard and barrier mounting devices for attaching said barrier to the one or more bollards;

at least one said securing element mounted within said two or more openings;

each of said collars comprising at least one barrier mounting device mounted within said plurality of openings; and

said barrier mounted to said barrier mounting devices on said collars.

14. The collar assembly of claim 13 further comprising said barrier is one of a net, a mesh, a solid barrier, and a gate.

15. The collar assembly of claim 13 further comprising said securing element is one of a bolt, a pin, a clamp, a screw, and a nail.

16. The collar assembly of claim 13 further comprising said barrier mounting device is one of an eye bolt, a hinge, a clip, a hook, a latch, a quick connect coupling, and a carabiner.

17. The collar assembly of claim 13 wherein said collars comprise steel, aluminum, plastic, or combinations thereof.

18. The collar assembly of claim 13 wherein said collars have a cross-section that is one of a square, a circle, a rectangle, or a triangle.

19. A collar for retrofitting a barrier to a bollard, the bollard having a length and a width, said collar comprising:

said collar adapted to fit around the bollard;

said collar comprising two or more openings, each said opening configured to receive a securing element or a barrier mounting device interchangeably;

at least one said securing element mounted within said two or more openings to affix said collar to the bollard; and

at least one said barrier mounting device mounted within said two or more openings to attach said barrier to the bollard.

20. The collar of claim 19 further comprising said barrier mounting device is one of an eye bolt, a hinge, a clip, a hook, a latch, a quick connect coupling, and a carabiner.

21. The collar of claim 19 further comprising said securing element is one of a bolt, a pin, a clamp, a screw, and a nail.

22. The collar of claim 19 wherein said collar comprises steel, aluminum, plastic, or combinations thereof.

23. The collar of claim 19 wherein said openings comprise nuts that are bonded, fused, soldered, or welded to said opening.

24. The collar of claim 19 wherein said collar is a unitary piece.

25. The collar of claim 19 wherein said collar multiple pieces held together by fasteners.

26. The collar of claim 19 wherein said collar comprises a sleeve.

27. The collar of claim 19 wherein said collar has a cross-section that is one of a square, a circle, a rectangle, or a triangle.