CRANE

• Main Authors: HOSHINO HIROYUKI, SATO TETSURO
• Format: Patent
• Language: English; Japanese
• Published: 21.09.2023
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

To suppress fluctuation in derricking angle of a boom caused by a turning angle change of the boom.SOLUTION: A crane 1 comprises: a lower travelling body 2; an upper turning body 3 rotatably provided in the lower traveling body 2; and a boom 4 derrickingly provided in the upper turning body 3. Auxiliary control of derricking control of the boom 4 is executed according to the angle of the boom 4 changed depending on a turning angle. For example, the auxiliary control may include at least motion control for reducing the work radius of the boom 4 or motion control for suppressing fluctuation in angle of the boom 4 from a turning start of the upper turning body 3.SELECTED DRAWING: Figure 3 【課題】ブームの旋回角度変化によるブームの起伏角度の変動の影響を抑制する。【解決手段】下部走行体２と、下部走行体２に回転可能に設けられた上部旋回体３と、上部旋回体３に起伏可能に設けられたブーム４とを備えるクレーン１であって、旋回角度によって変化するブーム４の角度に応じて、当該ブーム４の起伏制御の補助制御を行う。例えば、補助制御は、少なくとも、ブーム４の作業半径を縮小する動作制御又は上部旋回体３の旋回開始からのブーム４の角度の変動を抑制する動作制御を含んでもよい。【選択図】図３