Drive mechanism for transfer tool

A drive mechanism of a transfer tool, the drive mechanism configured to drive a swing axis which is provided to the transfer tool that transfers a workpiece, and tilts the workpiece relative to the transfer tool, the drive mechanism comprising:

• a motor;
• a speed reducer including an output shaft arranged in parallel to the swing axis and configured to reduce speed of rotation of the motor;
• and
• a link mechanism configured to couple the swing axis with the output shaft,
• wherein the link mechanism includes a first link portion fixed to the output shaft at a middle portion in a length direction thereof;
• a second link portion fixed to the swing axis at a middle portion in a length direction thereof;
• a third link portion that couples one end portions of the first link portion and the second link portion with each other in a rotatable manner;
• and
• a fourth link portion that couples other end portions of the first link portion and the second link portion with each other in a rotatable manner,
• wherein the first link portion and the second link portion are arranged in parallel to each other, and
• wherein the third link portion and the fourth link portion are arranged in parallel to a line segment linking a central axis of the output shaft with a central axis of the swing axis.