| 摘要 |
PROBLEM TO BE SOLVED: To express flexibility of a foot part during walking or natural motion and enable it to stably walk even on a slope by giving a load to rotation of the foot part against a leg part. SOLUTION: A foot part 6 is integrally with a rotary shaft 16 rotated in the arrow mark (a) direction relative to a lower leg part 5b, and a coil spring 41 on the tiptoe 6a side is compressed, the rotor 33 of a damper 31 is rotated in the arrow mark (a) direction against viscous resistance of oil through a rotor shaft 34 by the rotary shaft 16. Consequently, a damping function giving a proper load to the foot part 6 rotated in the arrow mark (a) direction can be generated. Hereby, the foot part 6 is prevented from fluctuating, the foot part 6 can be let stand on tiptoe naturally and stably, and hence the kick-out motion of a body part can be smoothly performed.
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