Mold for forming golf ball and golf ball manufactured using the same
AssigneeBridgestone Sports Co., Ltd.
InventorsShinichi Hinomoto, Makoto Aoki
Life of this patent
Estimating the term…
Abstract
There are provided a golf ball molding die in which a mold deposit produced when a gas is discharged can be removed easily, and the area of a venting opening 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 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 which is provided in at least one of the die bodies to discharge a gas in the cavity; and a pin which is present in the venting hole, the pin being configured so that a plurality of layers are lapped on each other from the center thereof.
Claims10
A golf ball molding die, comprising:
- at least two die bodies within which a cavity for molding a golf ball is formed by joining of the die bodies;
- a venting hole for discharging a gas in the cavity which is provided in at least one of the die bodies;
- and
- a pin which is present in the venting hole, the pin having a diameter from about 0.8 mm to about 7 mm,
- wherein the pin comprises a plurality of layers which are stacked relative to the center axis of the pin and the plurality of layers form a plurality of channels within the pin that extend from the cavity to an outer side of the molding die.
Dependencies are inferred from the claim text.