Tire Tread Recessed Grooves Snow Capture

The groove wall is segmented into multiple recessed portions (first, second, third recessed portions) with different orientations and positions. This segmentation allows snow to be captured and retained in discrete compartments, improving snow capture ability while the modular nature of the segmentation makes the molding process more manageable and less complex

The lateral grooves are designed with locally varying widths - wider at the connection to the main groove and narrower toward the land region interior. This local quality variation optimizes snow shearing force by providing adequate space for snow accumulation at the entrance while creating effective cutting edges deeper in the land region. The gradual transition in width reduces sharp corners and stress concentrations, making the grooves more tolerant to manufacturing variations

Multiple groove types (main groove, lateral grooves, lug grooves) and sipes are merged into a coordinated tread pattern system. The main groove with its recessed portions handles primary snow capture, lateral grooves provide shearing action, and lug grooves offer additional traction. By merging these elements into a unified pattern where they work together rather than independently, the overall on-snow performance is improved while the integrated design reduces the complexity that would result from having separate, uncoordinated systems