Abstract
Degrees of freedom in the motion must be reduced to some extent in order to sufficiently construct the humanoid robot hand in small and light-weight. There is due to a large constraint at the number and total power in the robot hand, since an adequate actuator which can be used at present is only a motor, and which may especially spoil the motion of pinching papers and needles in the fingertip which is one of the important function in the robotic hand. In this study, therefore, the authors developed the robotic hand that can generate the pinching motion by appropriately adding necessity minimum degrees of freedom without destroying the general harmony as a humanoid robotic hand.
