| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a grab bucket having a vertical control system. SOLUTION: This control system comprises a first sensor 62 and a second sensor 64 for feeding signals on the inclination of the longitudinal axis of a frame to the vertical axis thereof on a first plane including the longitudinal axis of the frame and parallel with the principal plane of the frame and a second plane including the longitudinal axis of the frame and orthogonal to the principal plane of the frame, a third sensor 66 for feeding signals on the twist of the frame about a vertical axis, a processor means 70 for processing signals fed from these multiple sensors and leading the information on the inclination and/or twist of the frame, control means 78 and 80 for generating commands fed to drive parts V1 to V6 as a function of the information on the inclination and twist for controlling the drive parts, and a manual operating means 74 for feeding these commands to the drive parts.</p> |
