| 摘要 |
PROBLEM TO BE SOLVED: To introduce multiple degrees of freedom into an electric artificial arm, to lighten its weight, and to reduce the driving sound of an actuator. SOLUTION: This link mechanism 1 is formed by assembling low-order contrapositions capable of moving the respective five fingers into the multiple degrees of freedom so as to realize the multiple degrees of freedom of a human hand as the electric artificial arm. The contrapositions of the link mechanism are all active joints 2, 3, and 4. Light-weight shape memory alloys 12, 13, and 14 producing no noise in expansion/contraction are used as the actuators of the positive joints. COPYRIGHT: (C)2003,JPO
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