| 摘要 |
PROBLEM TO BE SOLVED: To reduce the shock load and noise during traveling by connecting adjacent chain links with pins, providing annular elastic bodies on the outer periphery of each pin and the inner periphery of the holes of the chain links, and providing annular bodies with rigidity larger than that of the annular elastic bodies on the inner periphery of the holes. SOLUTION: Chain links 2, 2' adjacent to a pin 1 are connected by the pin 1 inserted into the holes formed on them to constitute a crawler belt. A plurality of rubber rings 3 which are annular elastic bodies are pressed in between the pin 1 and the chain link holes at intervals in the axial direction. Annular metal bushes 4 with rigidity larger than that of the rubber rings is inserted between the outer periphery of the pin 1 and the adjacent rubber rings 3 at the gapδwith the inner peripheral face of the chain link holes. A load is applied between the pin 1 and the chain links 2, the metal bushes 4 share the load when the relative displacement exceeds the gapδof the metal bushes 4, thus rigidity can be increased.
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