US Patent 8074468 Refrigerator

A movement structure for a drawer of a refrigerator is provided that allows a storage box to be automatically withdrawn from or inserted into a main body of the refrigerator. The structure may include a rolling mechanism that rolls along a guide mechanism coupled to the storage box to facilitate and guide the movement of the storage box and maintain alignment relative to the main body of the refrigerator. A drive motor may provide a rotational force to the rolling mechanism to automate the movement of the storage box.