| 摘要 |
PURPOSE: A vertical and horizontal operation boom for construction equipment is provided to dismantle a building with narrow and low space or high ceiling easily. CONSTITUTION: A vertical and horizontal operation boom for construction equipment comprises a swing post coupling bracket(210) in which a vertical coupling hole(211) and horizontal coupling holes(212,213) are formed, a derrick cylinder(220) which is positioned above a first arm, second and third arm actuating cylinders(240,260) which are positioned under the first arm and a second arm, a bucket actuating cylinder(280) which is positioned above a third arm, and the first to third arms(230,250,270). |
