Patent ID: 8481305

Claim:
A rotation driving device for cell culturing, comprising: a power supplying unit which is operated by receiving electric power from an outside; a rotational part which is rotated by the power supplying unit; and a driving part which is provided at an upper side of the rotational part and maintained in a stopped state when the rotational part is rotated so that only an inclination of the driving part is changed according to a rotational direction of the rotational part, wherein the rotational part comprises (a) a rotational shaft which is fixed with the power supplying unit at its one end and is rotated by the electric power supplied by the power supplying unit; (b) a circular plate type first supporting part attached to a lower end of the rotational shaft to support it for its rotation; (c) a circular plate type second supporting part which is disposed at an upper side of the first supporting part and connected with the first supporting part through a plurality of hinge members and which is formed with an opening at a center portion thereof; (d) ball bearing receiving parts which are formed on a circumference of an upper surface of the second supporting part and with a spherical recessed portion to receive a part of a ball bearing; and (e) ball bearings which are received in the ball bearing receiving part to be rolled.