| 摘要 |
PROBLEM TO BE SOLVED: To provide an elastic crawler which has a long life and prevents the occurrence of worm-eaten spots on track roller traveling surface. SOLUTION: The elastic crawler has a lug on its outer circumference side and a pair of guide protrusions on its inner circumference side, while track roller traveling surfaces having a prescribed width outside the guide protrusions in the width direction are provided in its inner circumference side. When the lug is left at rest on the level ground surface, the track roller traveling surfaces as a whole are formed of tilted planes tilted in the width direction with respect to the ground surface, or of tilted planes tilted in the width direction to outward side in the width direction with respect to the ground surface and horizontal planes continuously provided inward side thereof, with a step, in addition, being provided in between the track roller traveling surfaces and the front surfaces of the crawler's inner circumference side extended farther outward than the track roller traveling surfaces, with the track roller traveling surfaces being positioned higher from the ground surface than the front surface of the inner circumference side. The tilted surfaces have their inner side ends in the width direction being higher in height from the ground surface than their outer side ends, being tilted at a prescribed angle with respect to the ground, while the difference in height from the ground surface due to the step being within a prescribed range, and the difference on the tilted planes between both the ends in the width direction is kept at 2 mm or more. COPYRIGHT: (C)2010,JPO&INPIT
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