Tire Sipe Layout for Snow Grip and Dry Steering Stability

The patent applies local quality by providing sipes only in specific regions (shoulder land portions and intermediate land portions) rather than uniformly across all land portions. The sipes are strategically positioned to improve on-snow performance in areas that benefit most from snow interaction, while preserving the rigidity of the crown land portion and other critical areas for steering stability.

The patent segments the land portions into different functional zones: shoulder land portions with sipes for snow performance, intermediate land portions with selective siping, and crown land portions maintained for steering stability. This segmentation allows each region to optimize its function without compromising overall tire performance.

The patent implements local quality by varying the sipe configuration across different land portions. Shoulder land portions have sipes extending in multiple directions to maximize snow interaction, while intermediate land portions have sipes at specific angles (15-45 degrees) to balance snow performance with rigidity preservation. The crown land portion maintains higher rigidity by having fewer or no sipes.

The patent applies partial action by providing sipes only where necessary for snow performance rather than across the entire tread. The sipes are concentrated in shoulder and intermediate regions where snow contact is most beneficial, while avoiding excessive siping that would compromise overall land portion rigidity and steering stability.