Mass-production method of real spin golf ball

Abstract

Disclosed is a mass-production method of a real spin golf ball. The mass-production method includes (a) preparing a plurality of golf balls securely mounted in a frame and installed at a level state in a water tub, (b) filling salt water having specific gravity higher than specific gravity of water in the water tub until the golf balls are separated from the frame to float, (c) discharging the salt water filled in the water tub in a state that the floating golf balls are stopped such that the golf balls are not shaken, and securely mounting the golf balls in the frame, and (d) marking putting lines passing through upper centers of the golf balls, thereby ensuring real straightness in putting, so that the putting is exactly performed.

What is claimed is: 
     
         1 . A mass-production method of a real spin golf ball, the mass-production method comprising:
 (a) preparing a plurality of golf balls securely mounted in a frame and installed at a level state in a water tub;   (b) filling salt water having specific gravity higher than specific gravity of water in the water tub until the golf balls are separated from the frame to float;   (c) discharging the salt water filled in the water tub in a state that the floating golf balls are stopped such that the golf balls are not shaken, and securely mounting the golf balls in the frame; and   (d) marking putting lines passing through upper centers of the golf balls.   
     
     
         2 . The mass-production method of  claim 1 , wherein (c) the discharging of the salt water filled in the water tub in the state that the floating golf balls are stopped such that the golf balls are not shaken, and securely mounting the golf balls in the frame comprises:
 (e) marking the upper centers of the golf balls; and   (f) drying the golf balls by cleaning the golf balls.   
     
     
         3 . The mass-production method of  claim 1 , wherein the frame is formed therein with a plurality of through holes in which the golf balls are securely mounted while being spaced apart from each other by a predetermined interval. 
     
     
         4 . The mass-production method of  claim 1 , wherein the specific gravity of the salt water is in a range of 1.3 to 1.5.