| 摘要 |
PROBLEM TO BE SOLVED: To provide a height adjusting device of a control box operable in a suitable posture according to a physical condition of an operator by controlling the height of the control box provided with a control lever in the height adjusting device of the control box. SOLUTION: This height adjusting device of the control box disperses weight of the control box to an upper arm and a lower arm, and does not directly transmit the weight to an adjusting shaft, and does not require large force for rotating the adjusting shaft, and has the merits capable of simultaneously and regularly controlling the height of the left and right side control boxes in the same height by being used as the same rotary shaft. COPYRIGHT: (C)2003,JPO
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