Artificial hand

An artificial hand comprising a plurality of fingers disposed opposite to one another;

• a support body for rotatably supporting the fingers;
• a plurality of driving devices, at least one of which is mounted on a grasping part integrated with said support body;
• and a finger opening-and-closing operation part for converting a rotation output of one of said driving devices to an opening-and-closing operation of said fingers, wherein
• said one of said plurality of driving devices being mounted for rotation together with said fingers, and another of said plurality of driving devices being rotatably arranged in a wrist part, said one of said plurality of driving devices and the fingers being rotated together around a position near a root part of the fingers as the rotation center thereof using said another of said plurality of driving devices the rotation of said one of said plurality of driving devices and said fingers being limited between a first angular position and a second angular position.

An artificial hand comprising a plurality of fingers disposed opposite to one another;

• a support body for rotatably supporting the fingers;
• a first driving device mounted on a grasp part integrated with said support body, said first driving device having an upper part and a lower part, the upper part being closer to said fingers than the lower part;
• a conversion device for converting a rotating output of said first driving device to a linear motion;
• and a finger opening-and-closing operation part for converting the linear motion of said conversion device to an opening-and-closing operation of said fingers, which further comprises:
• a holding part for rotatably holding said support body at a point above or at the upper part of said first driving device;
• a terminal device held by a wrist part;
• a second driving device arranged in said terminal device, a rotating output of said second driving device being converted to a rotational motion of said support body;
• and
• a rotating mechanism for rotating said fingers and said first driving device as a unit around a longitudinal axis of said holding part and limiting rotation of said fingers and said first driving device around the longitudinal axis of said holding part between a first angular position and a second angular position.

An artificial hand comprising a plurality of fingers disposed opposite to one another;

• a support body for rotatably supporting the fingers;
• a plurality of driving devices, at least one of which is mounted on a grasping part integrated with said support body;
• a conversion device for converting a rotating output of one of said driving devices to a linear motion;
• and a finger opening-and-closing operation part for converting the linear motion of said conversion device to an opening-and-closing operation of said fingers, wherein
• said one of said plurality of driving devices being mounted for rotation together with said fingers, and another of said plurality of driving devices being rotatably arranged in a wrist part, said one of said plurality driving devices and the fingers being rotated together around a position near a root part of the fingers as the rotation center thereof using said another of said plurality of driving devices, the rotation of said one of said plurality of driving devices and said fingers being limited between a first angular position and a second angular position.