| 摘要 |
There is provided a traction device which is comprised of a mat having a pair of opposed major faces with a plurality of apertures extending between the major faces and a length of chain threaded through the apertures such that successive adjacent segments of the chain lie adjacent opposite major faces. One or more mats may be employed to achieve a desired length with the mats being foldable The traction device is inexpensive to manufacture while being compact.
|
