| 摘要 |
<p>A method of injection molding a golf ball that includes a core (28) and a cover layer disposed thereon. The method comprises the steps of centering a core (28) in a molding cavity (19), injecting a molten material into the cavity (19) around the core (28) at a plurality of locations such that the material simultaneoulsy exerts a force on the core (28) at each location. The forces have components that balance the core (28) in three dimensions. An injection mold (10) includes a plurality of pins extending from a spherical outer surface (22) of molding cavity (19). The mold further includes a plurality of runners having radially extending portions that are non-aligned and terminate at gates (A, B, C, D), at spaced locations on the cavity surface (22), for flowing a molten material in a fluid state into the cavity (19), and a means for simultaneously injecting the material into the cavity (19) from the gates (A, B, C, D).</p> |
