PROBLEM TO BE SOLVED: To suppress swing in tower strut upon deconstruction and the like.SOLUTION: A tower crane comprises a traveler 2, a rotator 3 rotatably arranged on the traveler 2, a tower boom 20 attached to rotator 3 in a manner capable of standing/falling, a tower jib 40 attached to an upper edge part of the tower boom 20 in a manner capable of standing/falling, a tower jib standing/falling assistant member 80 rotatably arranged on an upper edge of the tower boom 20 for standing/falling of the tower jib 40, and a tower jib assistant member jointing mechanism 180 jointing the tower jib assistant member 80 on the tower boom 20 in a detachable manner.SELECTED DRAWING: Figure 33
【課題】分解の際等における、タワーストラットの揺動を抑制する。【解決手段】走行体2と、走行体2に旋回可能に設けられた旋回体3と、旋回体3に起伏可能に取付けられたタワーブーム20と、タワーブーム20の上端部に起伏可能に取付けられたタワージブ40と、タワーブーム20の上端に回動可能に設けられた、タワージブ40を起伏するためのタワージブ起伏補助部材80と、タワージブ補助部材80をタワーブーム20に解放可能に連結するタワージブ補助部材連結機構180とを備える。【選択図】図33
TOWER CRANE
タワークレーン
2016-12-28
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |