PROBLEM TO BE SOLVED: To rotate a first member and a second member by a strong force.SOLUTION: A first member 2 corresponding to the distal phalanx, a second member 3 corresponding to the middle phalanx, a third member 4 corresponding to the proximal phalanx, and a fourth member 5 corresponding to the metacarpal bone are pivoted so that each member is rotated freely. First connecting points 2a and 3a between the first member 2 and the second member 3 are arranged on the palm side, and second connecting points 3b and 4a between the second member 3 and the third member 4 are arranged on the back side of the hand. A first connecting member 7 connects the first member 2 and the third member 4, and a second connecting member 8 connects the second member 3 and the fourth member 5. First connecting parts 2b and 7a between the first member 2 and the first connecting member 7 are arranged on the back side of the hand, and second connecting parts 3c and 8a between the second member 3 and the second connecting member 8 are arranged on the palm side.COPYRIGHT: (C)2012,JPO&INPIT【課題】第一部材と第二部材とを大きな力で回動できるようにする。【解決手段】末節骨に該当する第一部材2と中節骨に該当する第二部材3と基節骨に該当する第三部4材と中手骨に該当する第四部材5とをそれぞれ回動自在に軸支する。そして、第一部材2と第二部材3との第一連結点2a・3aを掌側に配置し、第二部材3と第三部材4との第二連結点3b・4aを手の甲側に配置する。そして、第一部材2と第三部材4とを接続する第一連結部材7と、第二部材3と第四部材5とを接続する第二連結部材8とを設け、第一部材2と第一連結部材7との第一連結部2b・7aを手の甲側に配置し、第二部材3と第二連結部材8との第二連結部3c・8aを掌側に配置した。【選択図】図1
