公开(公告)号：US20110175302A1

公开(公告)日：2011-07-21

申请号：US13120307

申请日：2009-08-18

申请人： David Sherman ,  Yekutiel Sherman ,  Robert Taylor

发明人： David Sherman ,  Yekutiel Sherman ,  Robert Taylor

IPC分类号： B62B9/02 ,  B62B7/04 ,  B62B5/02

CPC分类号： A61G5/066 ,  A61G5/068 ,  B62B5/02 ,  B62B9/02 ,  B62B2301/256

摘要： A manually propelled vehicle (1) comprises a frame (11) and a plurality of wheels (17, 23) secured to the frame (11) for conveying the vehicle (1) in one mode of operation. The vehicle (1) further comprises at least one continuous track assembly (3) mounted on the frame (11) and defining an upper tread (63a) and a lower tread (63b). The distance between the upper tread (63a) and lower tread (63b) can be changed from a retracted condition to an extended condition. In the extended condition, the lower tread (63b) forms the ground engaging surface of the vehicle (1) for conveying the vehicle (1) in a second mode of operation thereof. The vehicle (1) further comprises a seat (5) pivotally mounted to the frame (11) and means to tilt the seat (15) rear-wardly when ascending or descending an incline.

摘要翻译： 手动推进车辆（1）包括框架（11）和固定到框架（11）上的多个车轮（17,23），用于以一种操作模式输送车辆（1）。 车辆（1）还包括安装在框架（11）上并限定上胎面（63a）和下胎面（63b）的至少一个连续轨道组件（3）。 上胎面（63a）和下胎面（63b）之间的距离可以从缩回状态改变到延伸状态。 在延伸状态下，下胎面（63b）形成车辆（1）的地面接合面，用于以第二操作模式输送车辆（1）。 车辆（1）还包括枢转地安装到框架（11）的座（5）和用于在斜坡上升或下降时向后倾斜座椅（15）的装置。