公开(公告)号：US20180125734A1

公开(公告)日：2018-05-10

申请号：US15631019

申请日：2017-06-23

申请人： T.G. Underwood LLC

发明人： Travis Underwood ,  Benjamin Robert Low

IPC分类号： A61G5/06 ,  B62D55/12 ,  B62D55/08 ,  B62D55/075 ,  B62D55/02 ,  A61G5/10 ,  A61G5/12 ,  A61G5/04

CPC分类号： A61G5/066 ,  A61G5/04 ,  A61G5/042 ,  A61G5/10 ,  A61G5/1089 ,  A61G5/125 ,  A61G5/128 ,  A61G2203/14 ,  B62D55/02 ,  B62D55/075 ,  B62D55/08 ,  B62D55/12

摘要： A tracked mobility device includes a pair of track drives having a rear weight-bearing wheel assembly, a center weight-bearing wheel assembly, a forward weight-bearing wheel assembly, and a front roller assembly. The rear weight-bearing wheels, the center weight-bearing wheels, and the forward weight-bearing wheels are fixed to the frame at a height effective to cause the main weight-bearing surface to always have a “V”-shaped lower surface when viewed from the side. The center weight-bearing wheels, the forward weight-bearing wheels, and the front rollers are fixed to the frame at a height effective to cause that portion of each track drive always to have a “V”-shaped lower surface when viewed from the side. At least one powered drive wheel is provided, and at least one of the rollers is a tensioning roller.