| 摘要 |
PROBLEM TO BE SOLVED: To improve the removing property of soil on a rear part side of an upper face of a crawler belt winding part of a truck frame in a crawler type running device supported in both right and left side parts of the truck frame and winding a crawler belt over driving wheels, an idler, and a rolling wheel. SOLUTION: A soil removing part 64b having an inclined downward shape toward an inner side in the lateral directions from a halfway part in the lateral directions is provided on the rear part side of the upper face of the crawler belt 4 winding part of the truck frame 9.
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