To provide a golf ball molding die in which a mold deposit formed when a gas is discharged can be removed easily, and a venting opening area per unit area of the tip end of a pin can be increased tremendously, and a golf ball manufactured by using the golf ball molding die.
A golf ball molding die in accordance with the present invention includes at least two die bodies 12 which are configured so that a cavity for forming a golf ball is formed by joining the die bodies to each other; a venting hole 15 which is provided in at least one of the die bodies 12 to discharge a gas in the cavity; and a pin 20 which is present in the venting hole, the pin 20 being configured so that a plurality of layers 21, 22, and 23 are lapped on each other from the center thereof.
| JP2005304721 | METHOD OF MANUFACTURING GOLF BALL |
| JP7081147 | How to make a golf ball |
| WO/2013/101807 | GOLF BALL WITH CO-MOLDED CORE AND MEDIAL LAYER AND METHOD OF MAKING |
AOKI MAKOTO
| JP2002542067A | 2002-12-10 | |||
| JP2000037480A | 2000-02-08 | |||
| JPH0780848A | 1995-03-28 | |||
| JPH08323772A | 1996-12-10 |
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
Naomi Yoshida
Ayako Nakamura
Masayuki Okamoto
Fukagawa Eri
Satoshi Morimoto
Kyoko Tsunoda
Takashi Matsuzaki
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