Golf putter for practice

Abstract

A golf practice putter includes a putter head coupled to a lower end of a shaft and having a putter face and a hitting member selectively coupled to the putter head. A through hole is formed in the putter head to be stepped such that a fastening bolt pass through the through hole upwards from a bottom face of the putter head, and a cutout portion is formed in the putter face corresponding to the through hole to open a portion of an upper face of the putter head in a hitting direction. The hitting member is formed in a shape of a golf ball, and a seating face seated on the upper face and supported by an edge of the upper face and a support face are formed to be stepped in a bottom face of the hitting member.

1 . A golf practice putter comprising a putter head coupled to a lower end of a shaft and having a putter face and a hitting member selectively coupled to the putter head,
 wherein a through hole is formed in the putter head to be stepped such that a fastening bolt pass through the through hole upwards from a bottom face of the putter head, and a cutout portion is formed in the putter face corresponding to the through hole to open a portion of an upper face of the putter head in a hitting direction, and   wherein the hitting member is formed in a shape of a golf ball and has a hitting face on an outer peripheral face thereof, a seating face seated on the upper face and supported by an edge of the upper face and a support face are formed to be stepped in a bottom face of the hitting member, a screw-fastening groove is formed in the seating face such that the fastening bolt is coupled to the screw-fastening groove, and the hitting member is interchangeably coupled to the putter head by the fastening bolt in a state in which the hitting member is seated on the upper face such that a part of the hitting face protrudes beyond the putter face through the cutout portion.   
     
     
         2 . The golf practice putter of  claim 1 , wherein the hitting face of the hitting member is formed as a spherical hitting face formed to have a curvature, which is equal to a curvature of the golf ball, or a flat hitting face formed in a plane shape, and when the hitting face is formed as the flat hitting face, multiple hitting members are provided for each size of the flat hitting face so as to be selectively coupled to the putter head. 
     
     
         3 . A golf practice putter comprising a putter head coupled to a lower end of a shaft and having a putter face and a hitting member selectively coupled to the putter head,
 wherein a through hole is formed in the putter head to be stepped such that a fastening bolt pass through the through hole upwards from a bottom face of the putter head, a cutout portion is formed in the putter face corresponding to the through hole, to open a portion of an upper face of the putter head in a hitting direction, and a triangular to octagonal coupling protrusion protrudes upwards on the upper face in which the through hole is formed,   wherein the hitting member is formed in a shape of a golf ball, hitting faces having different shapes and sizes are formed on an outer peripheral face of the hitting member, a seating face is formed on a bottom face of the hitting member to be seated on the upper face, a triangular to octagonal coupling groove is formed such that the coupling protrusion is inserted into and coupled to the coupling groove and engagement faces aligned with the hitting faces are provided in the coupling groove, and a screw-fastening groove to which the fastening bolt is coupled is provided in the coupling groove, and   wherein an orientation of the hitting member is set such that the hitting face selected among the hitting faces is exposed to the cutout portion, the coupling protrusion is coupled to the coupling groove, and the fastening bolt is coupled to the screw-fastening groove in the coupling groove through the through hole.   
     
     
         4 . A golf practice putter comprising a putter head coupled to a lower end of a shaft,
 wherein the putter head includes:
 a first hitting member formed in a spherical shape corresponding to a shape of a golf ball, the lower end of the shaft being coupled to the first hitting member; 
 a second hitting member formed in the spherical shape corresponding to the shape of the golf ball, and horizontally coupled to a side face of the first hitting member to be located on a straight line with the first hitting member; 
 a third hitting member formed in the spherical shape corresponding to the shape of the golf ball, and horizontally coupled to a side face of the second hitting member to be located on a straight line with the first hitting member and the second hitting member; and 
 a coupling rod configured to integrate the first hitting member, the second hitting member, and the third hitting member by fastening a nut on one end of the coupling rod, which passes through the first hitting member, the second hitting member, and the third hitting member, and fastening the shaft to a remaining end of the coupling rod. 
   
     
     
         5 . The golf practice putter of  claim 4 , wherein each of the first hitting member, the second hitting member, and the third hitting member has a spherical hitting face formed in a curvature, which is equal to a curvature of the golf ball, and flat hitting faces formed in a plane shape and having different sizes. 
     
     
         6 . The golf practice putter of  claim 4 , wherein, in opposite side faces of the second hitting member, which face the first hitting member and the third hitting member, respectively, and in the first hitting member and the third hitting member, position change units are provided to change the positions of the second hitting member and the third hitting member, to select each of the spherical hitting faces and the flat hitting faces, or to make the hitting faces variable depending on whether a user is right-handed or left-handed, and
 wherein the position change units include:
 polygonal connection members having a predetermined length; and 
 polygonal positioning grooves formed on opposite side faces of the first hitting member, the second hitting member, and the third hitting member such that the connection members are fitted to the polygonal positioning grooves, respectively. 
   
     
     
         7 . The golf practice putter of  claim 1 , wherein the shaft is provided with an aiming member including an aiming hole to aim a hole cup to be foldable and unfoldable, one end of the aiming member being coupled to the shaft via an axle, and
 wherein the shaft has aiming scales successively formed thereon to indicate the size and number of the aiming hole with reference to the aiming member.   
     
     
         8 . The golf practice putter of  claim 3 , wherein the shaft is provided with an aiming member including an aiming hole to aim a hole cup to be foldable and unfoldable, one end of the aiming member being coupled to the shaft via an axle, and
 wherein the shaft has aiming scales successively formed thereon to indicate the size and number of the aiming hole with reference to the aiming member.   
     
     
         9 . The golf practice putter of  claim 4 , wherein the shaft is provided with an aiming member including an aiming hole to aim a hole cup to be foldable and unfoldable, one end of the aiming member being coupled to the shaft via an axle, and
 wherein the shaft has aiming scales successively formed thereon to indicate the size and number of the aiming hole with reference to the aiming member.