| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem of a conventional mobile body on which a crawler track mechanism is mounted, wherein the positional adjustment of the mobile body in the lateral direction when the mobile body enters a restricted place, is difficult to perform. Ž<P>SOLUTION: This crawler track mechanism having a circular cross section is so formed that the cross sectional shape of an entire crawler 3 is circular, and has a center rotating shaft 4 at the center thereof. A thrust is generated also in the vertical direction to the center rotating shaft 4 and in the lateral direction along a traveling surface by rotating the center rotating shaft 4. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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