| 摘要 |
Novelty: a snow and ice breaker practicable for vehicles is disclosed. Constitution: a system of 8 or more pistons (5) radially positioned on a mechanism adapted to the outer side of the wheel rims ofa vehicle before a course on hazardous road sections. These pistons (5) are adjusted via a controlled-motion mechanism with the assistance of a ratchet (12) so that said pistons can extend and return totheir initial position in respect to the driving conditions, with no removal of the invented system during the vehicle΄s course. |
