Patent ID: 9260144
Filing Date: 2016-02-16
CPC Classification: B62D

Claim Text:
1. A lower track of a crawler type excavator, comprising: a pair of first and second rubber pads which are dividedly formed; a first steel plate configured to surroundingly support the underside of the first rubber pad, the first steel plate having one or more first hooks formed on the underside thereof so as to allow one end of a track shoe to be supportingly seated thereon, and a joint stepped portion having one or more fastening holes formed thereon, the joint stepped portion being formed on an opposite side of the first hook; a second steel plate configured to surroundingly support the underside of the second rubber pad, the second steel plate having one or more second hooks formed on the underside thereof so as to allow the other end of the track shoe to be supportingly seated thereon, and a joint projection portion having one or more through-holes formed thereon to correspond to the fastening holes, the joint projection portion being formed on an opposite side of the second hook so as to be seated on the joint stepped portion; and one or more fastening members fixedly engaged into the fastening holes of the first steel plate after passing through one or more through-holes formed in the second rubber pad and the through-holes of the second steel plate in this order, wherein the track shoe is supported by hooking the first and second hooks on both ends of the track shoe, the first and second steel plates are assembled into a single unit by superimposing the joint projection portion of the second steel plate on the corresponding joint stepped portion of the first steel plate, and the first and second rubber pads having the undersides on which the first and second steel plates are supported are detachably mounted on the track shoe by the fastening members fixedly engaged into the fastening holes of the first steel plate after passing through the through-holes of the second rubber pad and the through-holes of the second steel plate.