Abstract: An anti-skid device for use on pneumatic tires of an automotive vehicle includes a supporting ring rotatably provided on the outer circumferential periphery of a mounting plate that is detachably mounted on the wheel portion of the automotive vehicle, a plurality of ribs formed from a material having elasticity and toughness that are provided on the supporting ring in a radial fashion and are bent so as to extend from the outer side of a pneumatic tire to a tread thereof, first and second endless bands provided on the leading-end portion of each of the ribs in such a manner as to be located within the width of the tread of said pneumatic tire, rivets secured at portions where the first and second bands intersect the ribs, and a counter-measure provided on either of the first and second bands for preventing an imbalance in the degree of stretch between the first and second bands.

Abstract: An anti-skid device for use on pneumatic tires of an automotive vehicle includes a supporting ring rotatably provided on the outer circumferential periphery of a mounting plate that is detachably mounted on the wheel portion of the automotive vehicle, a plurality of ribs formed from a material having elasticity and toughness that are provided on the supporting ring in a radial fashion and are bent so as to extend from the outer side of a pneumatic tire to a tread thereof, first and second endless bands provided on the leading-end portion of each of the ribs in such a manner as to be located within the width of the tread of said pneumatic tire, rivets secured at portions where the first and second bands intersect the ribs, and a counter-measure provided on either of the first and second bands for preventing an imbalance in the degree of stretch between the first and second bands.