| 摘要 |
An anti-skid device (1) with mounting from the outside is described, comprising: a central hub (2) designed to be disposed to coincide with the wheel hub (101), a plurality of arms (20) protruding radially from the hub (2) and ending in terminal elements (21) designed to be disposed on the tyre tread, portions of chain (3) connected to the terminal elements (21) so as to form a ring on the tyre tread, an adapter device (5) adapted to be fixed to a wheel-fixing bolt (102) and carrying a tensioning strap (7) which passes through the hub (2) of the anti-skid device (1) to be tensioned by the user so as to move the hub (2) of the anti-skid device (1) towards the hub (101) of the wheel, a tensioning device (8) connected to the hub (2) of the anti-skid device (1), adapted to be operated by the user, to tension and to lock the tensioning strap (7). The tensioning device (8) is a jack-type device which allows the strap (7) to be pulled in the tensioning direction and does not allow it to slip in the loosening direction. |
