Golf Club Face Bulge and Roll Fitting for Off-Center Accuracy
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Solution Overview
Problem
Conventional golf clubs do not adequately address the gear effect caused by off-center hits, leading to inconsistent ball direction and reduced performance, particularly for players with higher swing speeds.
Innovation Solution
A system for customizing the bulge and roll curvature of golf club striking plates based on individual swing characteristics, using robotic testing and biomechanical analysis to determine optimal club face geometries, which are then manufactured with precision to match each golfer's unique swing profile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional club faces are used, then manufacturing is simpler, but off-center hits produce inconsistent ball direction and reduced accuracy
Solution Approach 1:
The club face is divided into multiple zones with different bulge and roll characteristics. The heel, center, and toe regions each have customized curvature parameters that are optimized for their specific impact characteristics, allowing each zone to control ball direction independently for consistent overall performance
Solution Approach 2:
The invention systematically varies the bulge and roll parameters across different regions of the club face. By changing these geometric parameters locally, the system optimizes off-center hit performance while maintaining manufacturability through standardized curvature profiles that can be produced with conventional machining
2Speed
If higher swing speeds are accommodated, then distance potential increases, but gear effect from off-center hits becomes more pronounced and harder to control
Solution Approach 1:
The club face geometry is pre-designed to counteract the gear effect before it can adversely affect the shot. By incorporating specific bulge and roll characteristics, the club face proactively compensates for the increased spin rates generated by high swing speeds, neutralizing the harmful gear effect rather than reacting to it after occurrence
Solution Approach 2:
The optimization process performs preliminary testing and analysis using robotic swing simulators before final club production. Multiple iterations of bulge and roll parameters are evaluated in advance to determine the optimal configuration for high swing speed players, ensuring the gear effect is managed from the design stage
3Manufacturing precision
If custom bulge and roll parameters are optimized for each golfer, then shot accuracy improves, but fitting process complexity increases
Solution Approach 1:
The fitting system is designed to be dynamic and adaptive, automatically adjusting bulge and roll parameters based on measured swing characteristics. The system evolves from static manufacturer defaults to dynamic, player-specific optimizations, improving accuracy while managing complexity through automation
Solution Approach 2:
The fitting process incorporates feedback loops where swing data is collected, analyzed, and used to refine club specifications. Performance data from initial fittings is fed back into the system to optimize subsequent adjustments, systematically improving accuracy while containing fitting complexity through structured iterative processes
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
Improves accuracy and distance by optimizing club face curvatures, reducing spin rates and enhancing consistency for off-center hits, benefiting players with varying swing speeds and skill levels.
Implementation Method 1
In golf, a gear effect refers to how a golf ball reacts when struck off-center by a curved clubface, such as clubfaces found on drivers, fairway woods and hybrids. When the ball is hit toward the toe of the club, the ball tends to spin in a way that counteracts a slice
Data Source
AI summary
A method of for determining an amount of bulge and roll of a golf club striking plate that is optimal for a golfer, including, testing golf clubs having striking plates with various amounts of bulge and/or roll using a robotic swinging arm, gathering data obtained from the testing, measuring a swing characteristic for the golfer, and determining the optimum amount of bulge and/or roll to include in the striking plate for the golfer based on the golfer's swing characteristic.