Non-skid device for vehicle wheels

A non-skid device for application to a pneumatic tire on a vehicle wheel comprising a road engaging member of continuous length adapted, when on a tire, to extend back and forth diagonally in zigzag shape across the tread portion of the tire thereby forming reversely bent parts at opposite sides of the tire;

• a flexible inside anchor member adapted to be positioned at the inner side of the tire and having two separable ends;
• releasable means operable in detachably connecting said two separable ends with each other thereby providing a closed loop;
• an outside anchor member adapted to be positioned at the outer side of the tire and providing a closed loop;
• connector members operable in connecting the reversely bent parts at the outer side of said road engaging member with said inside anchor member, the connector member nearest one of the separable ends of said inside anchor member detachably holding said inside anchor member, whereby detachment of the two ends of said inside anchor member and detachment of said inside anchor member from said detachable connector member will provide slackness and clearance in said non-skid device for application of the same to a tire resting on a supporting surface.