Golf Club Head Weight Port Structure for CG and MOI Tuning
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Solution Overview
Problem
The center of gravity (CG) and moment of inertia (MOI) of golf club heads affect the launch angle, spin rate, and direction of the golf ball, varying significantly based on the type of golf swing, which existing technologies have not adequately addressed.
Innovation Solution
The golf club head design includes a forward portion that enhances structural integrity, a composite crown portion, and multiple top stiffening portions to distribute impact force, reduce deflection, and improve stiffness, while incorporating materials like titanium and composite materials for optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the golf club head uses a single material construction, then manufacturing is simpler, but the ability to optimize center of gravity and moment of inertia is limited
Solution Approach 1:
The golf club head is divided into multiple components made from different materials: a body portion (aluminum, magnesium, or titanium), a face portion (steel or titanium), and a crown portion (composite material). This segmentation allows each component to be optimized independently for its specific function while contributing to overall CG and MOI optimization.
Solution Approach 2:
The patent employs composite material construction throughout: the body uses lightweight metals (aluminum, magnesium, or titanium), the face uses high-strength metals (steel or titanium), and the crown uses composite materials. This multi-material approach enables precise control over weight distribution, center of gravity position, and moment of inertia to optimize performance for different swing types.
2Weight of moving object
If the golf club head uses lightweight materials like aluminum or magnesium, then the overall weight is reduced improving swing speed, but the structural integrity may be compromised
Solution Approach 1:
The patent combines lightweight materials (aluminum, magnesium, or titanium for the body) with high-strength materials (steel or titanium for the face portion) to achieve both weight reduction and structural integrity. The face portion, which experiences the highest impact forces, is made from stronger materials while the body uses lighter materials to reduce overall weight and improve swing speed.
Solution Approach 2:
Different regions of the golf club head are made from materials with different properties optimized for their specific functions: the body portion uses lightweight materials for swing speed, the face portion uses high-strength materials for impact resistance, and the crown portion uses composite materials. This local optimization of material properties resolves the contradiction between weight and strength.
3Weight of moving object
If the crown portion is made from composite material, then weight is reduced and aerodynamics are improved, but manufacturing complexity increases
Solution Approach 1:
The crown portion is designed as a separate component that can be manufactured independently using composite material techniques, then integrated with the body and face portions. This segmentation allows the complex composite manufacturing process to be isolated to just the crown portion rather than the entire club head, reducing overall manufacturing complexity while still achieving weight reduction and aerodynamic benefits.
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 bottom portion comprising a toe-side wall, a heel-side wall, a center portion between toe-side and heel-side walls, a wall portion extending into an interior cavity of the body portion from an inner surface of the bottom portion, a weight portion, a weight port on the bottom portion located between the wall portion and a face portion. The weight port is configured to receive the weight portion. A polymer material is between the weight port and the wall portion. A rear portion of the polymer material is coupled to the wall portion and a front portion of the polymer material is coupled to the weight port. Other examples and embodiments may be described and claimed.