REMOTE CONTROL DEVICE FOR TIGHTENING BOLT AND NUT

PURPOSE:To enable a plurality of bolts and nuts to be tightened by a remote control, by movably supporting a tool head, which holds a bolt and turns a nut, to a device main unit, removably fixed to a member to be mounted, while providing a bolt and nut supplying mechanism. CONSTITUTION:A device fixes its main unit 13 to a nozzle cover 4 with a strut 6a serving as a guide by a fixing handle 12 while a bolt and nut supplying mechanism 14 to the nozzle cover 4 with a supporting pin serving as a guide. Next, the supplying mechanism 14 successively moves a bolt 9, which temporarily stops a nut 11, to a delivery position. While the main unit 13 provides a tool head 15 to be moved by a radial direction sliding mechanism 16, axial direction sliding mechanism 17 and a rotating mechanism 18, and the tool head 15, holding the bolt 9 in the delivery position to be taken out and transferred to the position of a notch 4a, turns the nut to be tightened. Accordingly, the device can remotely control tightening work or the like in the bolt and the nut for mounting the nozzle cover of a nuclear equipment hazardous of access.