| 摘要 |
PROBLEM TO BE SOLVED: To drive a hydraulic pump without using any engine having environmental trouble such as noises and exhaust gas and without supplying power from the outside thereto. SOLUTION: An operation machine 17 is loaded to a machine main body 14 equipped with a traveling device. A seat 20 is set to one side from the swivel center 21 at the relatively front of the machine main body 14. A battery box 22 incorporating a large number of battered 22b therein is mounted to the rear of the machine main body 14 in a detachable manner. A DC motor 23 operated with the batteries 22d, a hydraulic pump 24 driven with the DC motor 23, a hydraulic tank 27, etc., are arranged to the other side from the swivel center 21. The operation machine 17 is operated with a hydraulic accouter having operating fluid supplied from the hydraulic pump 24. The DC motor 23 and a hydraulic valve 28 are controlled with commanding signals inputted from a radio or a wire remote controller operated by an operator positioned to the seat 20 or the outside through a controller 51 to control the hydraulic actuator. |
