Patent ID: 7625049
Filing Date: 2009-12-01
Classification: B62D

Abstract:
1. A rubber crawler comprising: a plurality of core bars which are embedded at constant intervals in a lengthwise direction of the rubber crawler, wherein each core bar comprises lefi and right wing portions, each wing portion including a pair of edge portions; and a plurality of coupling bodies, each coupling body including an opening and two fitting portions, each fitting portion being provided at an end of the coupling body, and lugs formed in an outer surface of the rubber crawler and located at a position covering the coupling body; wherein the edge portions of adjacent core bars are coupled to each other by fitting the edge portions into the fitting portions of one of the coupling bodies, and the coupling body is a tensile material; wherein one of the fitting portions of the one of the coupling bodies and the fitting portion of an adjacent coupling body of the coupling bodies are respectively provided at the edge portions of one of the adjacent core bars, and the one of the coupling bodies and the adjacent coupling body are pivotably linked to the one of the adjacent core bars only at the fitting portions of the one of the coupling bodies and the adjacent coupling body; wherein each opening faces an outer surface of the rubber crawler, and the entire coupling body is embedded in the rubber crawler so as to be positioned within a region in a lengthwise direction of the rubber crawler where one of the lugs is formed.