Golf Club Head Thick-Walled Ribs Boundary Reinforcement

The patent applies local quality by providing reinforcing ribs at specific boundary locations where strength is needed, while maintaining thin-walled structure in other areas for resilience. The crown-side and sole-side thick-walled ribs are strategically positioned at the boundaries between central and peripheral parts, providing localized reinforcement without compromising overall resilience performance.

The face portion is segmented into central thick-walled part and peripheral thin-walled part, with reinforcing ribs further segmenting the boundary regions. This segmentation allows each region to perform its specific function: central part for strength, peripheral part for resilience, and ribs for boundary reinforcement.

Instead of adding complex reinforcement structures throughout the entire club head, the patent applies local quality by providing reinforcing ribs only at the critical boundary parts between central and peripheral regions. This localized approach improves durability without significantly increasing overall structural complexity.

The patent uses partial action by providing reinforcing ribs only where most needed (at the boundaries) rather than uniformly throughout the entire structure. This selective reinforcement achieves durability improvement with minimal additional complexity.

The patent extends the reinforcing ribs from the face portion into the crown and sole portions, adding depth in the vertical dimension. This dimensional extension allows the ribs to reinforce not only the face boundary but also the crown and sole regions, improving durability without complicating the manufacturing process.

The crown-side and sole-side thick-walled ribs are designed to extend backwardly from the face, providing preliminary reinforcement to the crown and sole portions before impact forces reach those areas. This preemptive reinforcement structure improves durability while maintaining manufacturing feasibility.