| 摘要 |
PROBLEM TO BE SOLVED: To reduce the production cost, by disposing used golf balls so as to protrude a part thereof to the outside of a molding formed to have a specified shape. SOLUTION: The upper and lower layers 11A, 11B of a molding body 11 are laminated in the thickness direction. In this time, flexible and elastic aggregate and rigid aggregate in the molding body 1 are mixed by 5-30wt.% against the whole aggregate. The braille parts 12 made of used golf balls 13 are formed so that a part thereof is protruded by 3-8mm from the upper face of the molding body 11 to the outside. In this way, since a part of the studded part 12 and the molding body 11 is formed of used golf balls, a required volume of aggregate is reduced and the production cost is also reduced and the blind can securely confirm the braille blocks 10. |
