Patent ID: 8434993

Claim:
A robot apparatus configured to hand over a workpiece by rotating by a prescribed angle a finger including a holding means for holding the workpiece, the robot apparatus comprising: a drive shaft including a first finger and a second finger spaced from each other, the first finger including a first arm portion and a second arm portion extending from its rotation center with a prescribed angle therebetween so as to be distanced from each other, and the second finger including a third arm portion and a fourth arm portion extending from its rotation center with a prescribed angle therebetween so as to be distanced from each other, wherein the second arm portion is at a first handling position and the fourth arm portion is at a second handling position when the first arm portion and the third arm portion overlap at a third handling position, wherein the first arm portion is at the second handling position and the third arm portion is at the first handling position when the second arm portion and the fourth arm portion overlap at the third handling position, and wherein the first handling position, the second handling position and the third handling position are positions at which said or another workpiece is handed over and received.