Indicator creation method, indicator creation system and golf club

Abstract

An indicator creation method enables a user holding a golf club in preparation to swing the club to create an indicator that makes it easy to aim a club face. In this method, a first light beam extending in a direction in which a club face is aimed is drawn on a floor surface by light emitted from a first light source mounted on the club, and the user holds the club in preparation to swing the club in such a way that the first light beam faces in a predetermined direction, a second light beam that is either parallel with the first light beam or superimposed thereon is drawn on the club head by light emitted from a second light source disposed in front of a head portion of the user, and an indicator is created on the club head based on the second light beam.

1 . An indicator creation method for a golf club in which:
 a first light beam extending in a direction in which a club face is facing is drawn on a floor surface by light that is emitted from a first light source mounted on a golf club, and a user holds the golf club in preparation to swing the golf club in such a way that the first light beam faces in the predetermined direction;   a second light beam that is either parallel with the first light beam or is superimposed thereon is drawn on the club head by light that is emitted from a second light source disposed in front of a head portion of the user who is holding the golf club; and   an indicator is created on the club head based on the second light beam.   
     
     
         2 . The indicator creation method for a golf club according to  claim 1 , wherein the predetermined direction is set based on the stance of the user who is holding the golf club in preparation to swing and on the target direction. 
     
     
         3 . The indicator creation method for a golf club according to  claim 1 , wherein the indicator is imprinted either continuously or intermittently so as to form a straight line following the second light beam. 
     
     
         4 . The indicator creation method for a golf club according to  claim 3 , wherein at least a portion of the indicator is imprinted along a curved or bent surface of the club head. 
     
     
         5 . The indicator creation method for a golf club according to  claim 1 , wherein the first light source emits a light beam extending over a vertical surface when a user is holding the golf club in preparation to swing. 
     
     
         6 . The indicator creation method for a golf club according to  claim 1 , wherein the second light source is disposed in front of the eyes of a user who is holding the golf club in preparation to swing and is observing the club head, and emits light in the direction of the user's observation. 
     
     
         7 . An indicator creation system for a golf club comprising:
 a first light beam drawing device that is provided with a first light source that is mounted on a golf club and draws on a floor surface a first light beam extending in a direction in which a club face is aimed; and   a second light beam drawing device that is provided with a second light source that is disposed in front of a head portion of a user and that, in a state in which the user is holding the golf club in preparation to swing the golf club in such a way that the first light beam is pointing in a predetermined direction, draws on the club head a second light beam that is either parallel with the first light beam or is superimposed thereon.   
     
     
         8 . The indicator creation system for a golf club according to  claim 7 , wherein the first light beam drawing device is further provided with a spherical main body that is mounted on the club face, and the first light source is mounted on this main body. 
     
     
         9 . The indicator creation system for a golf club according to  claim 7 , wherein the second light beam drawing device is further provided with a mounting mechanism that is interposed between the user and the second light source, and is used to mount the second light source below the eyes of the user. 
     
     
         10 . A golf club on whose club head is provided an indicator that, in a case in which a user is holding the golf club in a predetermined grip in such a way that a club face is aimed in a predetermined direction, when viewed by the user, is imprinted either continuously or intermittently so as to form a straight line extending in the predetermined direction. 
     
     
         11 . The golf club according to  claim 10 , wherein the indicator is provided on a curved or bent surface of the club head and, in a case in which a user is holding the golf club in a predetermined grip in such a way that the club face is aimed in a predetermined direction, the indicator is formed so as to appear curved or bent when viewed by the user. 
     
     
         12 . The golf club according to  claim 10 , wherein the indicator is imprinted from the club face of the club head across an upper surface thereof. 
     
     
         13 . The golf club according to  claim 10 , wherein the indicator is imprinted using a face line of the club head. 
     
     
         14 . The golf club according to  claim 10 , wherein the golf club is a golf club other than a putter.