| 摘要 |
PROBLEM TO BE SOLVED: To improve the durability by efficiently discharging mud or the like between engagement teeth of a sprocket, and mitigating stresses applied to driving projecting parts by the load from the engagement teeth in the crawler driving sprocket which is engaged with the driving projecting parts provided on the inner circumferential side of the endless belt-shaped crawler body to drive a crawler body. SOLUTION: A guide 11 which is rotated and engaged with side surfaces of the driving projecting parts 9 to prevent transverse deviation of the crawler body 6 is provided, the engagement teeth 12 which are brought into substantial surface contact with the driving projecting parts 9 to transmit the drive force are provided on the side surface of the guide 11 on the outer circumferential side of the sprocket over the circumferential direction D of the sprocket. The engagement teeth 12 are independent from each other, and disposed with intervals in the circumferential direction D of the sprocket so as to form a space H to discharge the mud between the engagement teeth 12. COPYRIGHT: (C)2003,JPO
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