Golf Club Head Multi-Material Weighting and Polymer Cavity
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Solution Overview
Problem
Current golf club head designs face challenges in optimizing the center of gravity (CG) and moment of inertia (MOI) to achieve desired trajectory and spin rates, as they often rely on single materials and lack efficient methods for perimeter weighting.
Innovation Solution
The 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 for enhanced structural support and vibration damping.
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 discrete weight portions made of different materials (tungsten, steel, stainless steel) that can be independently positioned within the hollow body. This segmentation allows precise control over center of gravity location and moment of inertia distribution without requiring complex multi-material manufacturing processes throughout the entire structure.
Solution Approach 2:
The patent employs composite material construction by combining different metallic materials (tungsten-based, steel-based, stainless steel) in separate weight portions within the club head assembly. This approach achieves the benefits of material property differentiation for CG optimization while maintaining manufacturing simplicity through modular assembly rather than integrated multi-material forming.
2Manufacturing precision
If perimeter weighting is implemented, then moment of inertia is improved, but the ease of manufacture decreases
Solution Approach 1:
Perimeter weighting is achieved through discrete weight portions positioned at strategic locations along the perimeter of the club head's hollow body. These segmented weight elements can be independently manufactured and positioned, simplifying the manufacturing process compared to traditional methods requiring complex tooling for integrated perimeter weight distribution.
Solution Approach 2:
The patent utilizes parameters such as weight portion mass, material density, and spatial positioning to achieve moment of inertia optimization. By adjusting these parameters of discrete components rather than redesigning the overall manufacturing process, the patent maintains ease of manufacture while achieving superior MOI characteristics.
3Object-generated harmful factors
If hollow body with interior cavity is used, then vibration damping is improved, but the strength decreases
Solution Approach 1:
The hollow body is constructed from high-strength materials (tungsten, steel, stainless steel) that provide structural integrity despite the cavity. The combination of hollow construction for vibration damping with strong materials maintains overall strength, resolving the contradiction between vibration reduction and structural requirements.
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 configuration results in a golf club head with a higher launch angle and lower spin rate, providing improved distance and consistency in ball flight, while maintaining structural integrity and sound quality.
Implementation Method 1
interior cavity filled with elastic polymers for enhanced structural support and vibration damping
Implementation Method 2
interior cavity filled with elastic polymers
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 having a face portion with a face portion thickness extending between a front surface and a back surface. The body portion may be associated with a body portion volume. The golf club head may also include an interior cavity. The interior cavity may include an elastic polymer material. Other examples and embodiments may be described and claimed.