公开(公告)号：US4261510A

公开(公告)日：1981-04-14

申请号：US071688

申请日：1979-08-31

Applicant: Kermit W. Andrus

Inventor： Kermit W. Andrus

IPC: B60B39/12 ,  E01B23/00

CPC classification number: B60B39/12

Abstract: A device is disclosed for improving the traction of vehicle wheels, particularly for use with an automotive vehicle rendered immobile in snow or sand. A plate is provided with transverse T-shaped gripping members affixed to the plate on each surface for the entire width of the plate. Accordingly, positive traction is provided to both the vehicle wheel and the soft or slippery material, such as snow, sand, mud, or ice in which the wheel has become embedded. The invention is easily handled and used, particularly in emergency situations, and is durable under repeated conditions of hard use. Each T-shaped transverse bar constituting the gripping means is mounted preferably at an angle of about 25.degree. for presenting a positive gripping surface to enable the wheel to travel along the length of the traction device. Furthermore, the transverse bars provide rigidity to the device and are constructed to avoid damage to the tire. The device can be made of any suitable material, such as a lightweight aluminum alloy, high strength molded plastic, and like materials or combinations of materials.

Abstract translation: 公开了一种用于改善车轮的牵引力的装置，特别是用于在雪或沙中不动的机动车辆。 板在板的整个宽度上设置有固定在每个表面上的板的横向T形夹持构件。 因此，车轮和软的或光滑的材料（例如雪，沙子，泥浆或冰已经嵌入轮子）中都能提供积极的牵引力。 本发明易于处理和使用，特别是在紧急情况下，并且在重复使用的条件下是耐用的。 构成抓握装置的每个T形横杆优选地以大约25°的角度安装，以呈现正的抓握表面，以使得轮沿着牵引装置的长度移动。 此外，横向杆为设备提供刚性并且构造成避免损坏轮胎。 该装置可以由任何合适的材料制成，例如轻质铝合金，高强度模制塑料，以及类似材料或材料的组合。