Golf Club Head Density Ratio for Lower CG Without Weight Ports
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Solution Overview
Problem
Existing golf club head designs face challenges in uniformly distributing weight to optimize center of gravity position and increase club head moment of inertia, often requiring complex manufacturing processes and affecting aerodynamics due to the use of weight ports or inserts.
Innovation Solution
A golf club head design featuring a high density body and a low density face, with a specific gravity ratio greater than or equal to 1.7, positions the center of gravity closer to the bottom, maximizing weight distribution away from the center and increasing moment of inertia, thus simplifying manufacturing and improving performance characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If weight ports or inserts are used to optimize center of gravity position and increase moment of inertia, then club head performance is improved, but manufacturing complexity increases and aerodynamics are affected
Solution Approach 1:
The patent changes the density parameter of the club head body material to achieve weight optimization. By using a high density material (specific gravity ≥10) for the body, the design achieves better center of gravity positioning and moment of inertia without requiring additional weight ports or inserts, thus simplifying manufacturing while maintaining performance.
2Reliability
If weight ports or inserts are used to optimize center of gravity position and increase moment of inertia, then club head performance is improved, but aerodynamics are affected
Solution Approach 1:
The patent changes the density parameter of the club head body material to achieve weight optimization. By using a high density material (specific gravity ≥10) for the body, the design achieves better center of gravity positioning and moment of inertia without requiring additional weight ports or inserts, thus simplifying manufacturing while maintaining performance.
3Reliability
If uniform weight distribution is achieved through high density body and low density face, then moment of inertia increases and center of gravity optimizes, but manufacturing complexity should be reduced
Solution Approach 1:
The patent employs composite material construction by combining high density material (specific gravity ≥10) for the body with low density material (specific gravity <10, preferably titanium alloy) for the face. This composite approach achieves uniform weight distribution, optimizes center of gravity position, and maximizes moment of inertia while maintaining manufacturing feasibility through integrated forming 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
This design enhances the consistency of ball trajectory and distance by increasing club head moment of inertia, reduces spin on wood-type clubs, and increases launch angle on iron-type clubs, while simplifying manufacturing and potentially improving aerodynamics.
Implementation Method 1
a body made of a first material having a first specific gravity, the second specific gravity being less than the first specific gravity. The ratio of the first specific gravity to the second specific gravity may be greater than or equal to approximately 1.7
Implementation Method 2
positions the head center of gravity closer to the bottom of the club head than a club head without the high density body and lower density face. Positioning of the center of gravity toward the bottom of the club head reduces spin on the ball in wood-type club heads and increases the launch angle of the ball in iron-type club heads
Data Source
AI summary
Embodiments of a golf club head having a body comprising a first material and a strike face comprising a second material, wherein the density of the first material is greater than the density of the second material, and the ratio of the density of the first material to the density of the second material is greater than or equal to approximately 1.7 are described herein.