When the holding unit (10) is lowered, the control unit (30) gradually increases the lowering speed of the holding unit (10) toward a target lowering speed, then performs a constant-speed lowering operation for maintaining the lowering speed of the holding unit (10) at the target lowering speed, and thereafter gradually decreases the lowering speed of the holding unit (10) from the target lowering speed and stops the holding unit (10). The control unit (30) controls the drive unit (23) so as to gradually increase the rotational speed of the pulley (21) in accordance with the gradual decrease of the radius of the outer peripheral surface of the belt (22) wound around the pulley (21) due to extraction during the constant-speed descent operation.
控制部(30)在使保持部(10)下降的情况下,在使保持部(10)的下降速度朝向下降用目标速度逐渐增加之后,进行将保持部(10)的下降速度维持于下降用目标速度的恒速下降动作,此后,使保持部(10)的下降速度从下降用目标速度逐渐减小而使保持部(10)停止。控制部(30)控制驱动部(23),以在恒速下降动作中,与缠绕于滑轮(21)的带(22)的外周面的半径由于抽出而逐渐变小相应地,使滑轮(21)的旋转速度逐渐增加。
Article lifting device
物品升降装置
2023-12-01
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
ARTICLE LIFTING DEVICE AND ARTICLE TRANSPORT VEHICLE EQUIPPED WITH ARTICLE LIFTING DEVICE
European Patent Office | 2022
|