| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to easily perform bending control up to a small radius for a drive main body by rotating a plurality of drive members in one united body arranged in a shaft center direction and coupling them in a state of relative oscillation in a direction orthogonal to the shaft center. SOLUTION: A drive body for drive work method comprises a drive head 1 and a plurality of drive members 2. The drive head 1 and drive member 2 are equipped with joints 4, 5, 6. Rear end side of joint 4 and joints 5, 6 is equipped with spherical fitting portions 4a, 6a each having a spherical outer peripheral surface, and the tip side of the joints 5, 6 is respectively equipped with male type and female type spherical joints each having a spherical fitting portion 5a with a spherical inner peripheral surface. The male type joint and the female type joint are coupled together in a manner permitting relative rotation, coupling pins 7 are attached for creating relative oscillation of the drive head 1, drive member 2 and drive members 2, 2 around the shaft center Y. In this way, these parts and members can be connected together so as to cause rotation in one united body and relative oscillation around the shaft center Y. |
