公开(公告)号：US4254907A

公开(公告)日：1981-03-10

申请号：US50984

申请日：1979-06-22

Applicant: Danny R. Pine

Inventor： Danny R. Pine

IPC: B60B39/12 ,  E01B23/00

CPC classification number: B60B39/12

Abstract: An improved portable traction track for a vehicle driving wheel which is characterized by a plurality of base sections flexibly connected to one another to form an elongate strip adapted to be pulled under a rotating driving wheel. Each of the base sections include transversely spaced vertical side walls which have longitudinally spaced edges which are disposed in predetermined angular relationship to the edges of the immediately adjacent side walls in a decreasing angular relationship from the front toward the rear of the strip. The edges of the side walls are also provided with locking features such that upon flexing of the base sections in one direction, the side sections engage one another to permit only predetermined amount of flexing of that portion of the strip. This construction provides a bridge effect as the vehicle wheel rotates and pulls the strip under the wheel to the point at which the wheel is driven out of the rut in which it is stuck.

Abstract translation: 一种用于车辆驱动轮的改进的便携式牵引轨道，其特征在于多个基部彼此柔性地连接以形成适于被拉动在旋转驱动轮下方的细长条。 每个基部部分包括横向间隔开的垂直侧壁，其具有纵向间隔开的边缘，其以与条带的前部向后方递减的角度关系以与预定角度关系相邻的侧壁的边缘设置。 侧壁的边缘还设置有锁定特征，使得在基部在一个方向上弯曲时，侧部部分彼此接合以仅允许条的该部分的预定量的弯曲。 这种结构在车轮旋转时提供了桥梁效应，并且将车轮下方的带拉动到车轮从其被卡住的车辙中的位置。