Patent ID: 6983670

Claim:
A pinion gear type rotating device for rotating a member about first, second and third axes, the second axis extending across the first axis and the third axis extending across the second axis, comprising: a first support structure which is rotatable about the first axis, a first shaft which extends along the first axis and to which a second support structure is connected via a first pinion gear train for rotating the second support structure about the second axis, the second support structure and the first pinion gear train being arranged on the first support structure for being rotated therewith, and a second shaft which extends along the first axis and to which a third support structure for holding the member is connected via second and third pinion gear trains for rotating the third support structure about the third axis, the third support structure and the third pinion gear train being arranged on the second support structure for being rotated therewith, and the second pinion gear train being arranged on the first support structure for being rotated therewith, wherein the second pinion gear train is provided for transferring the rotation direction about the first axis to a rotation direction about the second axis and the third pinion gear train being provided for transferring rotation direction about the second axis to a rotation direction about the third axis.