| 摘要 |
PROBLEM TO BE SOLVED: To realize miniaturization and compactification of a crawler type searching robot and cost reduction, and to make the crawler type searching robot possible surely climbing over a high level difference.SOLUTION: Both of support shafts 9a of an U-shape arm 9 are rotatably attached to both of side walls of a vehicle body 1 of a crawler traveling device so as to be arranged between driving wheels 2 and between axles of driven wheels 3. When caterpillar bands reach nearly front of a level difference, by an arm driving mechanism, a vehicle body width a direction arm 9c connected to a tip of arm parts 9b touches a position over a near side upper corner part of the level difference and arm parts 9d are rotated until the caterpillar bands touch the near side upper corner part of the level difference. In addition, when the caterpillar bands 4 climb over the near side upper corner part of the level difference, by arm driving mechanism, the vehicle body width direction arm 9c is rotated from a rear end side of the vehicle body to a rear end/lower side of the caterpillar band 4 so as to move up the rear end of the caterpillar bands 4. |
