To provide a mast guiding device that eliminates the lifting and lowering work that workers move between a steel tower and a mast when assembling the steel tower.SOLUTION: A mast guide device 7 surrounds a mast 3 so as to be able to move up and down relative to each other, is supported by a steel tower main pillar material P by a horizontal branch line 9, and holds the mast 3 perpendicularly to a steel tower T, comprising an annular frame 14 that surrounds the mast 3 so as to be able to move up and down relative to each other, a guide roller 15 provided thereon, and a stopper 16. The guide roller 15 can roll up and down on the outside of mast main pillar materials 3a to 3d. The stopper 16 can freely restrain and release the mast main pillar materials 3a to 3d, and is urged to a restrained position by the spring 17. The horizontal branch line 9, with one end side being connected to the stopper 16, arranges the stopper 16 at a release position against the urging force of the spring 17 when the other end side is locked to the steel tower main pillar material P with a predetermined tension.SELECTED DRAWING: Figure 7

    【課題】鉄塔の組立作業時に、作業者が鉄塔、マスト間を行き来する吊り上げ、吊り下ろし作業を省略できるマストガイド装置を提供する。【解決手段】マストガイド装置7は、マスト3を相対昇降自在に包囲して水平支線9で鉄塔主柱材Pに支持され、マスト3を鉄塔Tに垂直に相保持する。マスト3を相対昇降自在に包囲する環状フレーム14と、その上に設けられるガイドローラ15と、ストッパ16とを具備する。ガイドローラ15は、マスト主柱材3a〜3dの外側を上下に転動自在である。ストッパ16は、マスト主柱材3a〜3dを拘束解放自在で、ばね17で拘束位置に付勢される。水平支線9は、一端側がストッパ16に接続され、所定の張力を持って他端側が鉄塔主柱材Pに係止されるとき、ばね17の付勢力に抗してストッパ16を解放位置に配置する。【選択図】図7


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    Title :

    ASSEMBLING METHOD OF STEEL TOWER, MAST GUIDE DEVICE FOR DERRICK FOR BUILDING DEMOLITION WORK, AND TRANSFERRING METHOD OF THE MAST GUIDE DEVICE


    Additional title:

    鉄塔の組立、解体工事用デリックのマストガイド装置及び当該マストガイド装置の移設方法


    Contributors:

    Publication date :

    2020-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66C Krane , CRANES



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