| 摘要 |
PROBLEM TO BE SOLVED: To cut cost and reduce weight. SOLUTION: An upper structure is provided swingably around a vertical axis on a traveling unit driven by a traveling motor, a steering lever support base to support a steering lever to steer the traveling unit is provided in the upper structure, the steering lever support base is arranged with a space above a swiveling base plate forming the bottom of the upper structure, and a longitudinal relay shaft supporting a link interlocking and linking with the steering lever and a link interlocking and linking with a control valve to control the traveling motor is provided to the steering lever support base.
|
