Progressive Golf Club Groove Profiles for Predictable Spin
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Solution Overview
Problem
Conventional golf club sets experience unpredictable spin levels and inconsistent ball flight due to varying turf and moisture conditions, particularly in higher lofted clubs, leading to issues like 'fliers' and excessive spin.
Innovation Solution
A set of golf club heads with distinct groove profiles for different loft angles, tailored for lower and higher swing speed golfers, featuring unique cross-sectional designs to maintain desired spin levels across varying conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If higher lofted clubs are used to generate more spin, then spin level increases, but spin becomes unpredictable in rough or wet conditions leading to inconsistent ball flight
Solution Approach 1:
The patent applies different groove profiles (local characteristics) to different loft ranges. Lower lofted clubs (≤28° or ≤31°) receive one groove profile while higher lofted clubs (>28° or >31°) receive a different groove profile. This local differentiation ensures each club type has optimized spin characteristics for its specific loft category, improving reliability across varying conditions.
Solution Approach 2:
The patent changes the groove profile parameters (depth, width, angle) based on loft angle. By adjusting these physical parameters of the grooves, the clubs maintain predictable spin levels across different loft ranges and playing conditions, resolving the contradiction between spin generation and spin consistency.
2Reliability
If overly aggressive groove profiles are used to maximize spin, then spin level increases, but ball flight and turf interaction are adversely affected
Solution Approach 1:
The patent implements less aggressive groove profiles for higher swing speed golfers and tailored profiles for different loft ranges. This local quality approach ensures spin is optimized rather than maximized, preventing excessive spin that would adversely affect ball flight and turf interaction while still providing sufficient spin for reliable performance.
Data Source
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AI summary
The present invention is directed to a set of golf club heads with improved striking surfaces. More specifically, the present invention relates to a set of golf club heads having at least one golf club head in a loft angle range having a first groove type and at least one other golf club head in a different loft angle range having a second groove type. The different groove types based on loft angle ranges provide more predictable spin characteristics throughout the set and more consistent spin performance for various shot conditions.