Abstract
Upper gap crossing profiles and minimum gap width, which are formed between neighboring sidewalls of dual pneumatic tires, are different from lower gap ones of the dual pneumatic tires modified by depression. Therefore, a crossing profile of an antiskid device is similar to the upper gap profiles of the dual pneumatic tires, so that the antiskid device can be easily put on and taken off the upper gap and strongly held by the narrowing lower sidewalls. A contact face of the antiskid device has same height of the new dual pneumatic tires, consequently vibration and noise by driving a vehicle equipped the antiskid devices within the gap of the dual pneumatic tires are reduced in comparison with metal tire chains. Furthermore, divisional location of the antiskid devices arround the gap is reduced friction against road surface.
