| 摘要 |
A tire traction device having a tire arm about the width of a tire, roughly conforming the radial curvature of the tire and removably secured thereto, a spring-loaded shock pivotably attached to one end of the tire arm, and a traction track pivotably connected to opposite end of shock. The track includes a series of successively interconnected frames that pivot about each other, the first frame adjacent to the arm and pivotably connected thereto includes a tapered end. In use, the arm is placed about the tire and the tapered end of the first frame is wedged between the tire and the tractionless surface, the remaining frames can be laid flat or staggered. Upon rotation of the tire, the arm is rotated thereabout until releasing after contact with the first frame, whereby instantaneously the first frame and successive frames form a flat traction surface for the tire to rotate about. |
| 主权项 |
1. A tire traction device for temporary securement to a vehicle tire in order to escape soft terrain comprised of:
a tire arm member removably secured to a vehicle tire, said tire arm member constructed and arranged to span the width of a vehicle tire and conform to the radial curvature of the vehicle tire; a shock member having a first end and a second end, said first end pivotally attached to one end of said tire arm; and a traction track formed from at least two successive interconnected quadrilateral frames that are pivotally secured together, each frame formed from a plurality of parallel reinforcing members form a longitudinal sidewall of each said frame with a series of spaced apart reinforcing members therebetween, said track having a tire traction top surface for a vehicle tire to rotate upon, and a bottom surface for engaging the earth by permitting earth material to pass thereinbetween; whereby said tire arm is placed about a vehicle tire and said traction track is wedged against said vehicle tire and the earth and upon rotation of said vehicle tire said arm is rotated thereabout until releasing after contact with said track and positioning a traction surface for said vehicle tire to rotate about. |
