Flexible and self retracting pole vault and high jump crossbar

Abstract

A flexible and self retracting crossbar, which is formed of multiple different separated pieces with an elastic device in between, and has a self retracting pulley device.

What is claimed is: 
     
         1 . A pole jumping system, comprising:
 a first vertical pole holder, having a first horizontal pole holding surface,   a second vertical pole holder, having a second horizontal pole holding surface,   a crossbar sized to extend between said first and second vertical pole holders, the crossbar formed of a plurality of separated crossbar pieces, each said crossbar piece having an opening passing through a central section, and an elastic band passing through the crossbar pieces and holding the crossbar pieces together relative to one another.   
     
     
         2 . The system as in  claim 1 , wherein the crossbar has a first end piece at a first end, and a second end piece at a second end, and where the elastic band extends between the first end piece and the second end piece, and where the first end piece abuts against the first horizontal pole holding surface, and the second end piece abuts against the second horizontal pole holding surface. 
     
     
         3 . The system as in  claim 1 , wherein the crossbar has a 1.2 inch outer diameter. 
     
     
         4 . The system as in  claim 2 , further comprising a first retractor, connected to the first end piece, and a second retractor, connected to the second end piece, the first and second retractors providing spring bias which moves the crossbar back to extend between the first horizontal pole holding surface, and the second end piece abuts against the second horizontal pole holding surface When a force is applied to remove the crossbar from extending between the first horizontal pole holding surface and the 2nd horizontal pole holding surface. 
     
     
         5 . The system as in  claim 4 , wherein the first and 2nd retractors each include a spool of wire, which is spring biased to hold into a position that holds the pole between the first horizontal pole holding surface and the 2nd horizontal pole holding surface. 
     
     
         6 . The system as in  claim 4 , wherein the spool of wire includes first 2nd and 3rd spool holding surfaces, separated by 120° each. 
     
     
         7 . The system as in  claim 1 , wherein each crossbar piece has a concave surface at one end and converts surface at the other end, where the convex surface of each piece fits within a concave surface of a corresponding piece. 
     
     
         8 . The system as in  claim 7 , wherein each crossbar piece has identical plastic plugs at opposite ends, one plug with its concave end facing out and the other plug with its convex end facing out. 
     
     
         9 . The system as in  claim 1 , wherein there are multiple bands passing through the crossbar pieces.