| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coreless rubber crawler scarcely allowed to skip a tooth of a driving sprocket and is not easy to be locked. Ž<P>SOLUTION: The coreless rubber crawler 1 has a crawler body 2 formed in a closed loop of an endless belt-like shape made of rubber, and a plurality of protruding portions 3 protruding from the inner face 7 of the crawler body at equal intervals on the whole inner circumference of the crawler body to be engaged with a driving sprocket 53 of a traveling device. The protruding portions comprises basic units each consisting of a pair of the protrusions arranged with an interval in the width direction. The crawler body includes a plurality of sludge removal holes 8 which penetrate the inner and outer faces of the crawler body and are formed between the protruding portions arranged with the interval in the width direction. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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