| 摘要 |
Unpredictable bounce characteristics are imparted to a ball by forming the ball as a composite wherein a second ball part is disposed within a first ball part with the centers of each ball part spaced one from the other. In a first embodiment the second ball part is of the relatively high bounce ball type that is disposed in a cavity formed in the first ball part which is fabricated from sponge-like rubber; with the second ball part center spaced from the first ball part center. In a second embodiment the first ball part is of the relatively high bounce ball type and the second ball part is an air filled cavity formed within the first ball parts with the center of the cavity spaced from the center of the first ball part. The composite balls may be formed by severing the first ball part, forming the cavity therein and either leaving the cavity empty or placing a second ball part of different characteristics than the first ball part within the cavity.. A silicone glue is utilized to reassemble and secure the severed first ball part. Alternatively, gas can be injected into the first ball part while it is molded to form the empty cavity therein.
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