摘要 |
PROBLEM TO BE SOLVED: To provide a technique easily applicable to a driving device with a small caliber capable of facilitating the bending action of divided bodies constituting the driving device and, at the same time, surely preventing an undesirable twisting action. SOLUTION: The driving device includes at least a pair of correcting jacks 50 expansible in the direction of the axis bilateral symmetrically arranged to a diametral line D extended in the direction of radiation from an intersection of the center axis C in a section at right angles to the center axis C at a connecting position of divided bodies 20 to 40 of the driving device 10 and connected to the divided bodies 20 to 40 in front and behind in a bendable manner and twisting prevention connectors 60 arranged on the diametral line D and fixedly connected in the circumferential direction of the divided bodies 20 to 40, although the divided bodies 20 to 40 in front and behind can be moved along the diametral line D and they can be also rotated in the spherical direction with the point on the diametral line D as the center. COPYRIGHT: (C)2004,JPO |