SPORTS GOODS FOR BALL GAME

摘要

PURPOSE: To prevent a ball from slipping on a hit face by enhancing the friction applied by the hit face against the ball. CONSTITUTION: The wood 1 is composed by installing a shaft 3 onto a head 2. A face plate 5 is applied on the face 4 of the head 2. Diamond grains are stuck fast on the surface of the face plate 5 through metal plating or thermal splaying to form a diamond grain layer 11a. An edge is formed out on the diamond grain layer 11a. This constitution allows to enhance the friction applied to the ball as it bites into the edge of the diamond grain layer 11a on hitting, concurrently enabling to return the ball exactly in the desired direction and at the desired flight distance.