发明名称 Low cost vehicle traction device employing pivotally mounted anchoring means
摘要 A vehicle traction device for passenger cars and alike including a flexible belt-like traction mat with transverse corrugations on one side and substantially smooth on the other side. One end of the mat is pivotally secured to anchoring means including a flexible anchoring pad and ground gripping element. In use, the traction mat is first arranged to form a loop relative to the anchoring means. With its corrugations facing a tire and its smooth side facing the ground the traction mat will easily be drawn under a spinning wheel until that end of it, which is secured to the anchoring means becomes choked by the anchoring means. The tractive effort then developed causes the anchoring means to become wedged and thus assuring its fixed position, whereby the traction mat is prevented from being propelled away by the driven wheel.
申请公布号 US4225082(A) 申请公布日期 1980.09.30
申请号 US19790000253 申请日期 1979.02.05
申请人 GRANRYD, THORVALD G. 发明人 GRANRYD, THORVALD G.
分类号 B60B39/12;B60C27/00;B60P7/08;F16G11/12;(IPC1-7):E01B23/00 主分类号 B60B39/12
代理机构 代理人
主权项
地址