| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure that all three rubber projections formed on an inner peripheral surface of a rubber crawler are used for transmission of drive force in the rubber crawler improving engagement with a sprocket, bringing close to one another the pressure applied to the respective rubber projections as much as possible, lowering the pressure and not generating break of a tooth and damage to the rubber projection. SOLUTION: In the core metal-less rubber crawler, a steel cord 3 is buried in a longitudinal direction of the rubber crawler and a rubber lug 2 is formed on its outer peripheral surface. A central rubber projection 12 and side part rubber projections 13, 14 are formed on the inner peripheral surface at a center and left and right sides with a constant intervals. These three rubber projection are formed in a longitudinal direction in series and are formed in a width direction in a linear line shape. All rubber projections are engaged with a sprocket 21. COPYRIGHT: (C)2007,JPO&INPIT
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