Golf Club Head Weight Distribution and Cavity Damping
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Solution Overview
Problem
Current golf club heads face challenges in optimizing the center of gravity (CG) and moment of inertia (MOI) to achieve desired trajectory and spin rates, as existing materials and designs do not effectively distribute weight for enhanced performance.
Innovation Solution
The golf club head design incorporates multiple weight portions made of different materials, such as tungsten-based and steel-based materials, strategically positioned to optimize CG and MOI, with a hollow body and interior cavity filled with elastic polymers to enhance feel and sound, and a thin face portion for improved launch angles and spin rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple materials are used to manufacture golf club heads, then the center of gravity and moment of inertia can be optimized, but the device complexity increases
Solution Approach 1:
The golf club head is divided into multiple distinct material regions: a body portion made of one material and weight portions made of different materials. This segmentation allows independent optimization of each region's material properties to achieve desired center of gravity and moment of inertia characteristics.
Solution Approach 2:
Different portions of the golf club head are assigned different materials based on their specific functional requirements. The body portion uses one material while weight portions use different materials, allowing local optimization of density and weight distribution to precisely control the center of gravity position.
2Manufacturing precision
If weight portions are added to optimize CG and MOI, then trajectory and spin rate improve, but the overall weight of the club head increases
Solution Approach 1:
The golf club head combines multiple materials with different densities in a composite structure. High-density materials are used in weight portions while lighter materials are used in the body, allowing precise weight distribution and center of gravity control without uniformly increasing the overall club head weight.
Solution Approach 2:
Instead of uniformly distributing weight throughout the club head, the invention strategically places weight portions in specific three-dimensional locations. This spatial dimensionality allows optimization of center of gravity and moment of inertia while minimizing the total weight added to the club head.
3Speed
If a thin face portion is used to improve launch angles, then spin rates increase, but the structural strength decreases
Solution Approach 1:
The face portion is designed with localized thickness variation, being thin in specific regions to optimize launch angles and spin rates while maintaining adequate thickness in other areas to preserve structural strength. This local quality differentiation allows simultaneous achievement of performance and durability goals.
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
This design results in a golf club head that achieves a higher launch angle and lower spin rate, leading to increased distance and consistency in golf ball travel, while maintaining structural integrity and reducing vibration and noise.
Implementation Method 1
The interior cavity may be filled with an elastic polymer material to absorb shock and dampen vibration
Implementation Method 2
The interior cavity may be filled with an elastic polymer material to absorb shock and dampen vibration
Data Source
AI summary
Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a toe portion, a heel portion, a top portion, a sole portion, a back portion, and a front portion. The golf club head may include an interior cavity. Other examples and embodiments may be described and claimed.