| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure capable of deforming rubber projections during operation, i.e. during engagement with a sprocket and reducing winding resistance and distortion of roots of the rubber projections by improving the rubber projections without changing the engagement with the sprocket basically. SOLUTION: This coreless crawler 1 has the rubber projections 2 for drive formed on the inner peripheral face toward the longitudinal direction at constant pitches, and groove parts 3 extended to the width direction of the crawler 1 are provided at tip parts of the rubber projections 2. The structure includes the crawler 1, the rubber projections 2, the groove parts 3, lugs 4, the sprocket 21 and pins 22. COPYRIGHT: (C)2008,JPO&INPIT
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