Multi-Component Golf Club Head for CG and MOI Tuning
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Solution Overview
Problem
Existing golf club heads struggle to maximize discretionary mass for customizing performance and forgiveness, particularly in terms of moment of inertia (MOI) and center of gravity (CG), limiting options for golf ball flight manipulation.
Innovation Solution
A multi-component golf club head design comprising a metallic first component with a rearward sole extension and a non-metallic second component, allowing redistribution of mass to optimize CG and MOI, achieved by integrating a metallic first component with a T-shaped sole and a less dense crown component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If all metal golf club heads are used, then structural mass is sufficient to withstand impacts, but discretionary mass is limited and cannot be maximized for customizing performance
Solution Approach 1:
The golf club head is divided into multiple components with different materials - a metallic first component (titanium alloy) and a non-metallic second component (polymer composite). This segmentation allows the lighter polymer component to replace some metallic material, reducing overall density while maintaining structural integrity, thereby increasing discretionary mass for performance customization.
Solution Approach 2:
The patent employs composite materials by combining a metallic titanium alloy component with a non-metallic polymer composite component. The polymer component has lower density than metal, allowing weight reduction while maintaining sufficient structural resilience. This composite approach enables maximization of discretionary mass for optimizing moment of inertia and center of gravity positioning.
2Weight of moving object
If structural mass is minimized to maximize discretionary mass, then customization options increase, but structural resilience may be compromised
Solution Approach 1:
Different regions of the club head are assigned different material properties - the metallic first component provides high strength and structural resilience in critical load-bearing areas, while the non-metallic second component provides weight reduction in areas where lower density is beneficial. This local differentiation of material quality allows structural resilience to be maintained while maximizing discretionary mass.
Solution Approach 2:
The composite construction combines the high strength-to-weight ratio advantages of metal with the low density advantages of polymer composites. The metallic component ensures structural resilience for withstanding repeated impacts, while the non-metallic component reduces overall weight to maximize discretionary mass for performance customization without compromising structural integrity.
3Manufacturing precision
If center of gravity is lowered and rearward shifted to improve ball flight precision, then moment of inertia increases, but mass distribution becomes more complex
Solution Approach 1:
The multi-component structure allows independent positioning of mass in each component. The metallic first component can be designed with specific mass distribution features, while the non-metallic second component can be shaped to contribute to desired center of gravity positioning. This segmentation simplifies the achievement of complex mass distribution goals compared to trying to achieve the same effect in a monolithic structure.
Data Source
AI summary
A golf club head comprising two components, wherein the first component comprises a ball striking surface, a striking face return, and a sole extension with a mass portion. And wherein the second component comprises a lower density material, comprising part of the crown and part of the sole. The first component mass portion comprises between 20% and 35% of the mass of the golf club head. The mass portion comprises a weight port that comprises a plurality of tabs and is configured to receive a detachable sole weight. The detachable sole weight comprises a plurality of weight offsets and a plurality of side grooves configured to receive the plurality of tabs.