Variable golf putter

Abstract

A variable golf putter is disclosed. The variable golf putter includes a putter head coupled to the lower end of a shaft, the putter head having a head hitting surface, and a hitting member selectively coupled to the putter head. The hitting member has various hitting surfaces, whereby it is possible to perform putting practice in various manners. In addition, the hitting member and the hitting material made of a material different from the material of the hitting member are formed integrally with each other, whereby it is possible to provide various hitting sensations and thus to efficiently perform putting practice.

1 . A variable golf putter comprising:
 a putter head coupled to a lower end of a shaft, the putter head having a head hitting surface; and   a hitting member selectively coupled to the putter head, wherein   a through hole, through which a fastening bolt extends upwards from a bottom surface thereof, is formed in the putter head so as to be stepped, and an incision portion configured to open a portion of an upper surface of the putter head in a hitting direction is formed in the head hitting surface corresponding to the through hole,   the hitting member is formed in a golf ball shape and has a hitting surface formed on an outer circumferential surface thereof, a seating surface and a supporting surface supported by an edge of the upper surface so as to be seated on the upper surface are formed at a bottom surface of the hitting member so as to be stepped, a screw fastening recess, to which the fastening bolt is coupled by fastening, is formed in the seating surface, and the hitting member is replaceably coupled to the putter head via the fastening bolt in a state of being seated on the surface such that a portion of the hitting surface protrudes through the incision portion more than the head hitting surface,   the hitting surface of the hitting member is constituted by a spherical hitting surface having identical curvature to a golf ball or a planar hitting surface, and, in a case in which the hitting surface is constituted by a planar hitting surface, a plurality of hitting members is provided by area of the planar hitting surface and is selectively coupled to the putter head.   
     
     
         2 . A variable golf putter comprising:
 a putter head coupled to a lower end of a shaft, the putter head having a head hitting surface; and   a hitting member selectively coupled to the putter head, wherein   a through hole, through which a fastening bolt extends upwards from a bottom surface thereof, is formed in the putter head so as to be stepped, an incision portion configured to open a portion of an upper surface of the putter head in a hitting direction is formed in the head hitting surface corresponding to the through hole, and a triangular to octagonal coupling protrusion protrudes upwards from the upper surface in which the through hole is formed,   the hitting member is formed in a golf ball shape or a polygonal shape, hitting surfaces having different shapes and different sizes are formed on an outer surface of the hitting member, a seating surface, which is seated on the upper surface, is formed at a bottom surface of the hitting member, a triangular to octagonal coupling recess is formed in the seating surface such that the coupling protrusion is inserted into and coupled to the coupling recess when the seating surface is seated on the upper surface, and has coupling surfaces having identical directions to the hitting surfaces, and a screw fastening recess, to which the fastening bolt is coupled by fastening, is formed in the coupling recess,   the coupling protrusion is coupled to the coupling recess in a state in which an orientation of the hitting member is set such that a hitting surface selected from among the hitting surfaces is exposed through the incision portion, and the fastening bolt is coupled to the screw fastening recess of the coupling recess through the through hole by fastening, and   the hitting surface of the hitting member is constituted by a spherical hitting surface having identical curvature to a golf ball or a planar hitting surface, and, in a case in which the hitting surface is constituted by a planar hitting surface, a plurality of hitting members is provided by area of the planar hitting surface and is selectively coupled to the putter head.   
     
     
         3 . The variable golf putter according to  claim 2 , wherein a hitting material made of a material different from a material of the hitting member is provided integrally at the spherical hitting surface or the planar hitting surface, and a hitting material recess formed in the spherical hitting surface or the planar hitting surface is filled with the hitting material, or the hitting material is integrally formed with the hitting member through insert injection molding. 
     
     
         4 . The variable golf putter according to  claim 2 , wherein the lower end of the shaft is formed in a polygonal shape, polygonal coupling portions, to each of which the lower end of the shaft is coupled, are formed at opposite sides of the putter head such that one of the polygonal coupling portions is selected and used by a left-handed person or a right-handed person, and the lower end of the shaft and the coupling portion are coupled to each other via a bolt fastened from a bottom surface of the putter head in a state in which the lower end of the shaft is fitted in the coupling portion such that a coupling angle therebetween is adjusted. 
     
     
         5 . The variable golf putter according to  claim 2 , wherein a thickness adjustment recess is formed around the coupling recess of the hitting member, and the thickness adjustment recess is formed so as to have different widths such that the hitting surfaces have different thicknesses based on the coupling surfaces, whereby different hitting sensations and hitting sounds are generated. 
     
     
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         13 . A variable golf putter comprising:
 a putter head having a shaft coupling hole, to which a lower end of a shaft is coupled, and a head hitting surface; and   a hitting member selectively coupled to the putter head, wherein   a through hole, through which a fastening bolt extends upwards from a bottom surface thereof, is formed in the putter head so as to be stepped, an incision portion configured to open a portion of an upper surface of the putter head in a hitting direction is formed in the head hitting surface corresponding to the through hole, and a coupling portion is formed around the through hole,   a hitting surface is formed at one or each of outer surfaces of the hitting member, a coupling recess, to which the coupling portion is coupled by insertion, is formed in a bottom surface of the hitting member so as to be open downwards, a screw fastening recess is formed in a bottom surface of the coupling recess, and the fastening bolt is fastened to the screw fastening recess through the through hole in a state in which the coupling portion is inserted into and coupled to the coupling recess such that the hitting surface protrudes through the incision portion more than the head hitting surface or coincides with the head hitting surface, whereby the hitting member is replaceably coupled to the putter head, and   a hitting sound generation recess configured to generate a hitting sound when a golf ball is hit by all the hitting surface or a region of the hitting surface corresponding to a positive hitting point is formed in the hitting member.   
     
     
         14 . A variable golf putter comprising:
 a putter head having a shaft coupling hole, to which a lower end of a shaft is coupled, and a head hitting surface; and   a hitting member selectively coupled to the putter head, wherein   a through hole, through which a fastening bolt extends upwards from a bottom surface thereof, is formed in the putter head so as to be stepped, an incision portion configured to open a portion of an upper surface of the putter head in a hitting direction is formed in the head hitting surface corresponding to the through hole, and a coupling portion is formed around the through hole,   a hitting surface is formed at one or each of outer surfaces of the hitting member, a coupling recess, to which the coupling portion is coupled by insertion, is formed in a bottom surface of the hitting member so as to be open downwards, and a screw fastening recess is formed in a bottom surface of the coupling recess, and   the fastening bolt is fastened to the screw fastening recess through the through hole in a state in which the coupling portion is inserted into and coupled to the coupling recess such that the hitting surface protrudes through the incision portion more than the head hitting surface or coincides with the head hitting surface, whereby the hitting member is replaceably coupled to the putter head.   
     
     
         15 . The variable golf putter according to  claim 13 , wherein the hitting sound generation recess is formed in a region corresponding to the hitting surface or a region of the hitting surface corresponding to the positive hitting point so as to be open toward a bottom, a side, or a top of the hitting member or toward the coupling recess. 
     
     
         16 . The variable golf putter according to  claim 15 , wherein the hitting sound generation recess is filled with a metal material or a synthetic resin material different from a material of the hitting member, the metal material or the synthetic resin material is coupled to the hitting sound generation recess by insertion, or the metal material or the synthetic resin material is integrally formed with the hitting member through insert injection molding. 
     
     
         17 . The variable golf putter according to  claim 13 , wherein the hitting member is formed in a shape of a sphere, a hemisphere, or a combination of a polygon and a sphere, and a mark configured to indicate the hitting direction is formed on an outer circumferential surface of the hitting member in a form of a plurality of recesses or a line. 
     
     
         18 . The variable golf putter according to  claim 13 , wherein a decorative member for decoration is provided at an upper surface of the hitting member, and a portion of the decorative member is coupled to the hitting member by insertion, or a fastening portion provided at the decorative member is coupled to a screw hole formed in the upper surface of the hitting member by fastening. 
     
     
         19 . The variable golf putter according to  claim 13 , wherein shaft coupling holes of the putter head are formed in opposite sides of the putter head such that a right-handed person or a left-handed person selects one of the shaft coupling holes and couples the shaft to the selected shaft coupling hole. 
     
     
         20 . The variable golf putter according to  claim 13 , wherein, in a case in which the hitting member is formed in a shape of a sphere, a hemisphere, or a combination of a polygon and a sphere, the hitting surface is formed at an outer circumference of the hitting member, and a distance between a center of the hitting member and a hitting position is preset, a hemispherical auxiliary member is formed at the hitting surface so as to protrude and an auxiliary hitting surface is formed at the hemispherical auxiliary member such that an area of the hitting surface is increased or decreased. 
     
     
         21 . The variable golf putter according to  claim 1 , wherein a hitting material made of a material different from a material of the hitting member is provided integrally at the spherical hitting surface or the planar hitting surface, and a hitting material recess formed in the spherical hitting surface or the planar hitting surface is filled with the hitting material, or the hitting material is integrally formed with the hitting member through insert injection molding. 
     
     
         22 . The variable golf putter according to  claim 1 , wherein the lower end of the shaft is formed in a polygonal shape, polygonal coupling portions, to each of which the lower end of the shaft is coupled, are formed at opposite sides of the putter head such that one of the polygonal coupling portions is selected and used by a left-handed person or a right-handed person, and the lower end of the shaft and the coupling portion are coupled to each other via a bolt fastened from a bottom surface of the putter head in a state in which the lower end of the shaft is fitted in the coupling portion such that a coupling angle therebetween is adjusted. 
     
     
         23 . The variable golf putter according to  claim 14 , wherein the hitting member is formed in a shape of a sphere, a hemisphere, or a combination of a polygon and a sphere, and a mark configured to indicate the hitting direction is formed on an outer circumferential surface of the hitting member in a form of a plurality of recesses or a line. 
     
     
         24 . The variable golf putter according to  claim 14 , wherein a decorative member for decoration is provided at an upper surface of the hitting member, and a portion of the decorative member is coupled to the hitting member by insertion, or a fastening portion provided at the decorative member is coupled to a screw hole formed in the upper surface of the hitting member by fastening. 
     
     
         25 . The variable golf putter according to  claim 14 , wherein shaft coupling holes of the putter head are formed in opposite sides of the putter head such that a right-handed person or a left-handed person selects one of the shaft coupling holes and couples the shaft to the selected shaft coupling hole. 
     
     
         26 . The variable golf putter according to  claim 14 , wherein, in a case in which the hitting member is formed in a shape of a sphere, a hemisphere, or a combination of a polygon and a sphere, the hitting surface is formed at an outer circumference of the hitting member, and a distance between a center of the hitting member and a hitting position is preset, a hemispherical auxiliary member is formed at the hitting surface so as to protrude and an auxiliary hitting surface is formed at the hemispherical auxiliary member such that an area of the hitting surface is increased or decreased.