Packing box for a weight lifting bar

Abstract

A packing box for a weight lifting bar includes an elongate board having four parallel first folding lines to define the elongate board into a first portion, a second portion, a third portion, a fourth portion and a fifth portion. A second folding line is formed in each of two ends of the elongate board. Each of the two ends of the elongate board is defined into five end covers by the second folding line and the four first folding lines. The first portion is cut to have two side covers. The fifth portion is cut to have two openings. The elongate board is folded along the four first folding lines to form a quadratic body, and the end covers are folded inward to close the two open ends of the quadratic body. The bar in the packing box can be seen via the openings by opening the side covers.

What is claimed is: 
     
         1 . A packing box comprising:
 an elongate board and four first folding lines formed in parallel to the elongate board, the four first folding lines defining the elongate board into a first portion, a second portion, a third portion, a fourth portion and a fifth portion, a second folding line being formed in each of two ends of the elongate board and perpendicular to the four first folding lines, each of the two ends of the elongate board being defined into five end covers by the second folding line and the four first folding lines, the first portion being cut to have two side covers, the fifth portion being cut to have two openings which are located corresponding to the two side covers.   
     
     
         2 . The packing box as claimed in  claim 1 , wherein each of the side covers has a notch defined in a distal edge thereof. 
     
     
         3 . The packing box as claimed in  claim 1 , wherein a distance between the two side covers is adapted to be substantially equal to a user's shoulder width. 
     
     
         4 . The packing box as claimed in  claim 1 , wherein the elongate board is a paper board.