| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a semi-crawler type working vehicle to travel on a road by bringing up and supporting right and left crawler traveling devices while preventing the drop of mud. <P>SOLUTION: The semi-crawler type working vehicle equipped with right and left front wheels present at the front side part of a machine body of the working vehicle, and the right and left crawler traveling devices present at the rear part of the machine body is constituted as follows. A lift arm for lifting and lowering the implement, and a three-point link mechanism for connecting the implement are installed in the rear part of the machine body. Right and left bringing-up rods long in the front and rear direction are attached to right and left lower links of the three-point link mechanism, and right and left grounding wheel bodies are installed in the front side positions of the right and left bringing-up rods protruded frontward from the front terminal parts of the right and left lower links. When the right and left lowering links are turned upward by the right and left lift arms, the right and left crawler traveling devices are supported to be floated from the ground by the right and left grounding wheel bodies of the right and left bringing-up rods. <P>COPYRIGHT: (C)2012,JPO&INPIT |
