| 摘要 |
PURPOSE: An under carriage comprising a tension buffering structure for a rubber crawler is provided to be driven in agricultural areas having obstacles efficiently through buffering the tension of a crawler generated by obstacles or ground resistance in driving. CONSTITUTION: An under carriage(20) comprising a tension buffering structure for a rubber crawler comprises a sprocket(28), a rubber crawler(46), an idler(36), a support frame(22), a lower roller assembly(40, 42, 44), an upper roller(32), and a buffer member(50). The sprocket comprises a plurality of projections and composed to be rotated. The inner surface of the rubber crawler is contacted to the sprocket. The idler is rotated by the rubber crawler and formed in the opposite portion of the sprocket. The support frame is formed into square shape. The lower roller assembly and the upper roller are coupled with a bracket(30) installed in the support frame by a hinge. A tension buffering structure is composed between the idler and the support frame and buffers the tension due to the ground operation of the rubber crawler.
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