Golf Club Striking Face Zoning for COR and Face Strength
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Solution Overview
Problem
Modern golf club designs face challenges in optimizing the striking face to enhance ball trajectory, speed, and spin, which affect travel distance and flight shape, with existing technologies not adequately addressing these parameters.
Innovation Solution
A golf club head with a striking face featuring a thin center zone and multiple variable-thickness zones surrounding it, including a center zone with uniform thickness and surrounding zones that increase linearly in thickness, providing improved COR and feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the striking face thickness is increased to improve strength and durability, then the structural integrity is improved, but the coefficient of restitution (COR) and feel deteriorate
Solution Approach 1:
The striking face is designed with variable thickness distribution, where the center zone has reduced thickness (0.5mm-2.0mm) to enhance COR and feel, while the perimeter zones maintain greater thickness for structural strength. This local differentiation allows each zone to optimize its function independently.
Solution Approach 2:
The striking face is segmented into multiple functional zones: a center zone with minimum thickness for high COR, intermediate zones with gradual thickness transitions, and perimeter zones with maximum thickness for strength. This segmentation enables independent optimization of each zone's thickness profile.
2Reliability
If the center zone thickness is reduced to improve COR, then the coefficient of restitution is improved, but the overall face strength may deteriorate
Solution Approach 1:
The thick perimeter zones act as counterweights that compensate for the reduced thickness in the center zone. The gradual thickness transition from center to perimeter creates a stress distribution pattern where the thicker edges provide structural support without compromising the thin center's COR performance.
Solution Approach 2:
The solution moves from considering only face thickness to a three-dimensional thickness profile that varies across the striking face surface. The thickness is optimized in the vertical dimension while maintaining appropriate area distribution, creating a contoured face structure.
3Area of stationary object
If the striking face area is increased to improve ball contact, then the forgiveness is improved, but the mass distribution and COR may deteriorate
Solution Approach 1:
Different zones of the striking face are assigned different thickness qualities based on their functional requirements. The center zone has thin thickness for high COR where precise contact occurs, while perimeter zones have thicker construction for forgiveness on off-center hits, optimizing both area and local properties.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design achieves enhanced coefficient of restitution (COR) and improved feel, resulting in better ball performance and distance, while maintaining a high mass and strength.
Implementation Method 1
The striking face is comprised of a thin center zone and multiple, variable-thickness zones surrounding the center zone... the golf club head has improved COR and feel
Data Source
AI summary
A golf club head having an improved striking face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a striking face including a thin center zone and multiple zones surrounding the center zone.