Patent ID: 8113251

Claim:
An anti-skid tire device for increasing the grip of a tire of a vehicle on a road surface, said anti-skid tire device comprising: a plurality of modules associated with each other to form substantially a chain disposed annularly around a circular external surface of a tire, wherein said modules each comprise a shaped plate having a substantially triangular configuration with rounded corners in an external shape of said shaped plate, and provided, on a surface of said shaped plate, with a plurality of gripping elements protruding during use towards the outside of said shaped plate, so as to improve the tire's ability to grip on a road surface; and an attachment element having a first end associated with said shaped plate, a second end selectively attachable to a shaped plate of an adjacent module, and a central body, radially facing, in use, towards said tire and conformed so as to be able to be inserted into a corresponding groove provided on said circular external surface of said tire; wherein said attachment element further comprising at least one adjustment member adapted to adjust the size of said anti-skid device with respect to said tire.