| 摘要 |
<p>There are disclosed several sliding devices. One sliding device comprises a sheet (S) mounted on a slope (1) and having a descending substrate (2), a plurality of recesses (5) arranged uniformly on the substrate (2), a plurality of balls (4) engaged in the recesses (5) for supporting the ski and rotatable in full directions, the plurality of balls (4) being exposed over the substrate (2) so that the ski contact the balls (4), and projecting edges (12) provided at peripheries of the recesses (5) on the substrate (2) for preventing the plurality of balls (4) from getting out from the recesses (5).</p> |
