Golf club

Abstract

A golf club includes a shaft body, a head body connected to the shaft body, and a photochromic portion provided on at least one of the shaft body and the head body and including a photochromic blend. The photochromic blend is made by blending a coating material or a molding material with a photochromic material.

1 . A photochromic golf club shaft, comprising:
 a shaft body; and   a photochromic portion provided on said shaft body, and including a photochromic blend.   
   
   
       2 . The photochromic golf club shaft as claimed in  claim 1 , wherein said photochromic blend includes a coating material and a photochromic material, said photochromic portion being a coating layer applied on said shaft body. 
   
   
       3 . The photochromic golf club shaft as claimed in  claim 1 , wherein said photochromic blend includes a molding material and a photochromic material, and said photochromic portion is a preform sleeved on said shaft body. 
   
   
       4 . The photochromic golf club shaft as claimed in  claim 2 , wherein said coating material is clear lacquer, said photochromic material is a photochromic powder, and a weight ratio of said photochromic material to said coating material ranges from 1:1900 to 1:2100. 
   
   
       5 . The photochromic golf club shaft as claimed in  claim 2 , wherein said coating material is ink, said photochromic material is a photochromic powder, and a weight ratio of said photochromic material to said coating material ranges from 1:4 to 1:1000. 
   
   
       6 . The photochromic golf club shaft as claimed in  claim 4 , wherein said photochromic portion is formed by coating said photochromic blend on said shaft body. 
   
   
       7 . The photochromic golf club shaft as claimed in  claim 5 , wherein said photochromic portion is formed by printing said photochromic blend on said shaft body. 
   
   
       8 . The photochromic golf club shaft as claimed in  claim 3 , wherein said molding material is selected from the group consisting of thermoplastic polyurethane, silica gel, and acrylonitrile-butadiene-styrene copolymer, and said photochromic material is a photochromic powder. 
   
   
       9 . The photochromic golf club shaft as claimed in  claim 3 , wherein a weight ratio of said photochromic material to said molding material ranges from 1:200 to 1:2000. 
   
   
       10 . A photochromic golf club head, comprising:
 a head body having a photochromic portion that includes a photochromic blend.   
   
   
       11 . The photochromic golf club head as claimed in  claim 10 , wherein said photochromic blend includes a coating material and a photochromic material, said photochromic portion being a coating layer applied on said head body. 
   
   
       12 . The photochromic golf club head as claimed in  claim 10 , wherein said photochromic blend includes a molding material and a photochromic material, and said photochromic portion is a preform covered on said head body. 
   
   
       13 . The photochromic golf club head as claimed in  claim 11 , wherein said coating material is clear lacquer, said photochromic material is a photochromic powder, and a weight ratio of said photochromic material to said coating material ranges from 1:1900 to 1:2100. 
   
   
       14 . The photochromic golf club head as claimed in  claim 11 , wherein said coating material is ink, said photochromic material is a photochromic powder, and a weight ratio of said photochromic material to said coating material ranges from 1:4 to 1:1000. 
   
   
       15 . The photochromic golf club head as claimed in  claim 13 , wherein said photochromic portion is formed by coating said photochromic blend on said head body. 
   
   
       16 . The photochromic golf club head as claimed in  claim 14 , wherein said photochromic portion is formed by printing said photochromic blend on said head body. 
   
   
       17 . The photochromic golf club head as claimed in  claim 12 , wherein said molding material is selected from the group consisting of thermoplastic polyurethane, silica gel, and acrylonitrile-butadiene-styrene copolymer, and said photochromic material is a photochromic powder. 
   
   
       18 . The photochromic golf club head as claimed in  claim 12 , wherein a weight ratio of said photochromic material to said molding material ranges from 1:200 to 1:2000. 
   
   
       19 . The photochromic golf club head as claimed in  claim 12 , wherein said head body is composed of at least two component parts assembled together, said perform being formed as at least one of said component parts. 
   
   
       20 . A golf club, comprising:
 a shaft body;   a head body connected to said shaft body; and   a photochromic portion provided on at least one of said shaft body and said head body, and including a photochromic blend.