| 摘要 |
PURPOSE:To aim at improvements in operation efficiency, by supporting a bar driving shaft in the position one-sided from the center of a rear part of a control machine at the position inclined to one side, while constituting a driving wheel to be attachable to the shaft end and the center, and making an inclined ground easily usable. CONSTITUTION:A support arm 5 is projectingly installed in the position inclined to one side from a rear part center line of a machine body 1, and a driving shaft 6 is attached to this arm. With this setup, this driving shaft 6 comes to be supported on the position inlined to one side from the center in consequence. Each driving wheel is fitted in this driving shaft 6 with a setting hole 8 and locked thereto with an unillustrated key. With this constitution, these driving wheels 7 are attached to both ends of the driving shaft 6 at a plat ground but to the central part at a sloped ground, respectively, whereby a machine is able to cope with the sloped ground, not to mention the flat ground, thus improvement in operation efficiency is promoted.
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