MAIN COLUMN MATERIAL REPLACING DEVICE AND MAIN COLUMN MATERIAL REPLACING METHOD FOR ANGLE STEEL IRON TOWER

Japanese Patent JP2022094873

A

To provide a main column material replacing device and a main column material replacing method for an angle steel iron tower, capable of replacing a main column material near a bent point with the main column material replacing device installed over the bent point of the main column material of the angle steel iron tower.SOLUTION: The main column material replacing device for the iron tower equipped with two fixing tools fixed to two main column materials connected to both ends of a replacement main column material and a support member installed between the two fixing tools, is constructed such that the fixing tools have connection metal fittings fixed to the outer side surfaces of the main column materials, pairs of long support frames fixed to the connection metal fittings, parallel to each other and installed at right angles to the main column materials, and joint metal fittings rotatably attached between the support frames. The support member has an upper end connection tool fixed to the joint metal fitting of the upper fixing tool, a support steel pipe formed by one or a plurality of unit members and adjustable in length depending on a used type and a number, and a jack fixed to the joint metal fitting of the lower fixing tool.SELECTED DRAWING: Figure 1

YAMASHIRO MAKOTO
MIYAGI MUNENORI
NAGAHAMA TSUYOSHI
KUBA HIROAKI
HAYASHI KAZUO

JP2020219998A

June 27, 2022

December 15, 2020

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DENRO CORP
OKINAWA ELECTRIC POWER CO LTD
OKIDENKO CO LTD

E04G23/02; E04H12/10

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