| 摘要 |
PROBLEM TO BE SOLVED: To provide a working vehicle furnished with a crawler type travelling device hard to stay mud and a foreign matter on a driving sprocket for a crawler of it and having a falling prevention effect of the crawler. SOLUTION: This working vehicle is provided with a pair of the roughly triangular left and right crawler type travelling devices 7 with the driving sprocket 2 for the crawler as their top point on an axle 1b of a rear part of a car body and provided with more than two guides 41, 41 for prevention of separation of the crawler by dividing them around a shaft of the sprocket 2 of the roller type travelling device 7, and it is possible to easily mount it on the sprocket 2 without being influenced by the number of teeth of the sprocket 2. It is possible to prevent occurrence of flying of the teeth when a projected part 6a of the crawler 6 cannot be certainly received at a tooth bottom part of the sprocket 2 and to certainly transmit driving force from the sprocket 2 to the crawler 6 as the mud is drawn out through holes 41a, 41a even when the mud gets into between the sprocket 2 and the guides 41, 41 when the holes 41a, 41a for dropping of the mud are provided on the guides 41, 41. COPYRIGHT: (C)2006,JPO&NCIPI
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