ERECTOR DEVICE FOR SHIELD MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an erector device for a shield machine capable of simplifying attitude control of a new segment in the rolling direction and in the pitching direction, improving working efficiency for assembling the segment and extremely simplifying its structure. SOLUTION: An erector device includes a pitching pivotally supporting mechanism 42 for pivotally supporting a segment clamper so as to be faced to a spider mainbody in the Y direction and to be rotationally movable around an axial center offset from the center of the slider mainbody, a pair of rolling pivotally supporting mechanisms 47 for pivotally supporting the segment clamper so as to be isolated from the slider mainbody in parallel to the axial center in the Y direction and to be rotationally movable around a pair of rolling axial centers offset from the center of the slider mainbody 22 and a pair of cancelling mechanisms 50 for respectively cancelling pivotally supporting connections, whereby one cancelling mechanism 50 is operated to simply control the rolling attitude of a new segment Sb via the other rolling pivotally supporting mechanism 47.