摘要 |
A robot arm which allows the two hands to be brought together in front of the chest. In a robot arm comprising a shoulder joint attached to a body so as to be rotatable around a laterally extending axial line, an upper arm attached to the shoulder joint so as to be rotatable around an axial line perpendicular to the laterally extending axial line, a forearm attached to the upper arm via an elbow joint, and a hand attached to a free end of the forearm, the elbow joint is attached to the upper arm so as to be rotatable around a longitudinal axial line of the upper arm.
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