| 摘要 |
PROBLEM TO BE SOLVED: To prevent peeling-off of a center lug, and to eliminate peeling-off of rubber by changing shear force caused in the rubber during turning or the like to compression force while enlarging contact area relative to rubber lugs by formation of a protrusion, and reducing the peeling-off of the rubber. SOLUTION: In a rubber crawler, the core is embedded in a rubber elastic body at constant pitch, and main cords are simultaneously embedded with a blade part of the core enclosed from the outside. A sprocket engaging hole is formed between the adjacent cores, and the rubber lugs are formed on an outer peripheral surface. The protrusion is formed on the outer peripheral surface of the core which the sprocket engaging hole faces, and embedded in a rubber part connected with the rubber lugs. A core is shown as 3; 3a is a central part of the core; 8 is a center lug; and 10 is a protrusion. COPYRIGHT: (C)2006,JPO&NCIPI
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