| 摘要 |
A cup bottom extension apparatus includes a shell, a bottom tray and a plurality of paws. The shell may be coupled with the bottom of a cup in an integrated or detachable manner. Each of the paws has a stud shaft to couple with an axle hole formed on the bottom of the shell so that the paws are in contact with the bottom side of the shell in a spaced manner. The bottom tray has a latch member on the top side to couple with a step opening formed in the center of a collar on the bottom of the shell. The upper surface of the bottom tray has a plurality of struts to couple with the slots of the paws. Thereby the paws are sandwiched between the bottom side of the shell and the upper surface of the bottom tray. When one paw is driven outwards by an external force, the stud shaft serves as a fulcrum to allow the paw to be moved outwards from the periphery of the shell, and the bottom tray is driven to turn and extend the rest of the paws outwards to form a large area outside the periphery of the shell to hold the cup steadier.
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