| 摘要 |
<p>PROBLEM TO BE SOLVED: To extend the life of a battery and continue the work over a long period by efficiently feeding power to a motor. SOLUTION: This hydraulic shovel is provided with a lower travel body having a crawler 12 with a traveling function, an upper revolving superstructure provided on the lower travel body revolvably around a vertical shaft 12c and constituted of a board section 11 and work members 13, a motor 3 driven by the electric power from a loaded battery 2, a hydraulic pump 4 driven by the motor 3, an actuator 14 driven by the hydraulic fluid discharged from the hydraulic pump 4, the work members 13 operated by the drive of the actuator 14, and an operating means 5 operating the work members 13 via the actuator 14 by switching the flow and interruption of the hydraulic fluid discharged from the hydraulic pump 4.</p> |
