Backpack Carrier Type Golf Practice Tool

Abstract

A golf practice tool is provided having a columnar box, wherein the columnar box is provided with a shoulder belt and the columnar box is carried on the back of the golf player. The columnar box has a substantially flat upper surface. A plurality of striped line patterns or striped patterns substantially parallel to a side surface, which touches a back of a person and is called a back touch side surface, of the columnar box are drawn on the upper surface. The degree of inclination of the upper body of the golf player when playing golf can be adjusted by using the striped line patterns or the striped patterns. On side surfaces other than the back touch side surface of the columnar box, a plurality of vertical striped line patterns or vertical striped patterns are drawn substantially at right angles to the bottom surface of the columnar box. The degree of rotation of the upper body at a golf swing can be adjusted by using the vertical striped line patterns or the vertical striped patterns.

What is claimed is: 
     
         1 . A golf practice tool comprising:
 a columnar box having:
 an upper surface that is substantially flat or substantially curved; 
 a bottom surface opposite the upper surface; 
 a rear surface extending from the upper surface to the bottom surface, the rear surface touching a back of a golf player while the columnar box is being carried on the back of the golf player; and 
 a side surface extending from the upper surface to the bottom surface and being connected to the rear surface; 
   a shoulder strap connected to the columnar box or a hook and loop fastener attached to the rear surface of the columnar box being adapted to enable the columnar box to be carried on the back of the golf player;   a striped pattern provided on at least one of:
 the upper surface, the striped pattern being oriented substantially parallel to the rear surface; and 
 the side surface, the striped pattern being oriented substantially perpendicular to the upper surface or the bottom surface. 
   
     
     
         2 . The golf practice tool according to  claim 1 ,
 a shape of the columnar box being a substantially partial circular cylinder, a substantially partial elliptic cylinder, or a similar cylinder to them,   the upper surface and the bottom surface being a substantially partial circular shape, a substantially partial elliptical shape, or a similar shape to them,   the side surface being a substantially curved side surface of the partial circular cylinder or the partial elliptical cylinder or the similar shape to them, and   the rear surface being a substantially rectangular side surface of the partial circular cylinder or the partial elliptical cylinder or the similar shape to them.   
     
     
         3 . The golf practice tool according to  claim 2 ,
 a slanting line being drawn on the upper surface,   the slanting line being a line that connects an approximate midpoint of an arc of the upper surface and an approximate end point of a chord of the upper surface, and   the slanting line intersecting the striped pattern on the upper surface.   
     
     
         4 . The golf practice tool according to  claim 3 ,
 the slanting line serving as an indicator of a twisting degree of an upper body of the golf player at a golf swing.   
     
     
         5 . The golf practice tool according to  claim 2 ,
 a prominently colored area being depicted around an approximate midpoint of an arc of the upper surface.   
     
     
         6 . The golf practice tool according to  claim 5 ,
 the colored area being used to adjust an inclination of an upper body of the golf player, to serve as an indicator of a twisting degree of an upper body of the golf player, or to observe a movement of an upper body of the golf player.   
     
     
         7 . The golf practice tool according to  claim 2 ,
 a slanting line being drawn on the side surface,   the slanting line being a line that connects an approximate midpoint of an arc of the upper surface and an approximate end point of a chord of the bottom surface, and   the slanting line intersecting the striped pattern on the side surface.   
     
     
         8 . The golf practice tool according to  claim 7 ,
 the slanting line serving as an indicator of a forward leaning posture of an upper body of the golf player at a golf swing.   
     
     
         9 . The golf practice tool according to  claim 1 ,
 the columnar box being a balloon body formed by inflating with gas.   
     
     
         10 . The golf practice tool according to  claim 1 ,
 a main material of the balloon being a plastic, a rubber, stretchable elastomer, cloth or paper.   
     
     
         11 . The golf practice tool according to  claim 10 ,
 the plastic being a polyvinyl chloride, a polyester, a polyethylene terephthalate, a polypropylene, a polyvinyl alcohol, or an ethylene vinyl alcohol copolymer.   
     
     
         12 . The golf practice tool according to  claim 1 ,
 a shape of the columnar box being a polygonal column,   the bottom surface being a substantially polygonal bottom surface, and   the rear surface being one surface of the polygonal column.   
     
     
         13 . The golf practice tool according to  claim 1 ,
 a line pattern substantially perpendicular to the chord of the upper surface being drawn on the upper surface.   
     
     
         14 . The golf practice tool according to  claim 13 ,
 the line pattern being used to grasp a position of a head of the golf player at address.   
     
     
         15 . The golf practice tool according to  claim 1 ,
 a line pattern substantially parallel to the upper surface being drawn on the side surface.   
     
     
         16 . The golf practice tool according to  claim 14 ,
 the line pattern being used to grasp a position of an upper body of the golf player.   
     
     
         17 . A golf practice tool comprising:
 a columnar box having:
 an upper surface that is substantially flat or substantially curved; 
 a bottom surface opposite the upper surface; 
 a rear surface extending from the upper surface to the bottom surface, the rear surface touching a back of a golf player while the columnar box is being carried on the back of the golf player; and 
 a side surface extending from the upper surface to the bottom surface and being connected to the rear surface; 
   a shoulder strap connected to the columnar box or a hook and loop fastener attached to the rear surface of the columnar box being adapted to enable the columnar box to be carried on the back of the golf player; and   a slanting line being drawn obliquely to the rear surface on the upper surface.   
     
     
         18 . The golf practice tool according to  claim 17 ,
 the slanting line serving as an indicator of a twisting degree of an upper body of the golf player at a golf swing.   
     
     
         19 . A golf practice tool comprising:
 a columnar box having:
 an upper surface that is substantially flat or substantially curved; 
 a bottom surface opposite the upper surface; 
 a rear surface extending from the upper surface to the bottom surface, the rear surface touching a back of a golf player while the columnar box is being carried on the back of the golf player; and 
 a side surface extending from the upper surface to the bottom surface and being connected to the rear surface; 
   a shoulder strap connected to the columnar box or a hook and loop fastener attached to the rear surface of the columnar box being adapted to enable the columnar box to be carried on the back of the golf player; and   a slanting line being drawn obliquely to the rear surface on the side surface.   
     
     
         20 . The golf practice tool according to  claim 19 ,
 the slanting line serving as an indicator of a forward leaning posture of an upper body of the golf player at a golf swing.