Multi-material Iron Golf Club Head with Composite Chassis
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Solution Overview
Problem
Existing golf club iron designs fail to combine advanced material technology for increased forgiveness and ballspeed in a single unitary chassis without sacrificing aesthetic appeal or structural integrity.
Innovation Solution
A multi-material golf club head design featuring a metallic striking face supported by a lightweight composite rear chassis, incorporating tungsten weights and a carbon fiber composite material for structural support and discretionary weight distribution, while maintaining a thin striking face for improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a thin striking face is used to improve ballspeed, then ballspeed is improved, but structural integrity and strength deteriorate
Solution Approach 1:
The patent employs a composite construction combining a thin metallic striking face with a composite rear chassis. The metallic face (e.g., stainless steel) is optimized for ball contact and ballspeed, while the composite chassis (e.g., carbon fiber reinforced polymer) provides structural support and strength. This allows the striking face to be thin for improved ballspeed while the composite chassis maintains overall structural integrity.
Solution Approach 2:
The golf club head is divided into distinct functional segments: a thin metallic striking face portion optimized for ball interaction and ballspeed, and a separate composite chassis portion providing structural support. This segmentation allows each portion to be optimized for its specific function without compromising the other.
2Weight of moving object
If lightweight materials are used in the rear chassis to reduce mass, then weight is reduced, but structural support capability deteriorates
Solution Approach 1:
The rear chassis is constructed from composite materials such as carbon fiber reinforced polymers, which provide high strength-to-weight ratio. This allows the chassis to be significantly lighter than traditional all-metal constructions while maintaining or even improving structural support capabilities through the inherent strength of the composite material.
Solution Approach 2:
The chassis design incorporates varying material densities and structural configurations in different regions. Areas requiring higher structural support have increased material concentration or reinforced geometries, while areas where weight reduction is prioritized have reduced material presence. This local optimization allows the lightweight chassis to provide adequate support where needed while minimizing overall weight.
3Reliability
If discretionary weight is moved to the perimeter to increase moment of inertia, then forgiveness is improved, but structural complexity deteriorates
Solution Approach 1:
The composite chassis structure inherently provides the framework for perimeter weight distribution. The composite material allows for complex geometries and integrated weight distribution patterns that would be difficult to achieve with traditional metal casting, enabling effective moment of inertia optimization without proportionally increasing structural complexity.
4Reliability
If advanced material technology is integrated into a unitary chassis to improve forgiveness and ballspeed, then performance is improved, but manufacturing complexity deteriorates
Solution Approach 1:
The club head is manufactured as separate components (metallic striking face portion and composite chassis portion) that are subsequently assembled. This segmentation allows each component to be manufactured using optimized processes for its specific material and function, reducing the manufacturing complexity compared to creating a fully integrated unitary structure with multiple material types.
Solution Approach 2:
The separate metallic face portion and composite chassis portion are combined through joining processes (e.g., adhesive bonding, mechanical fastening, or metallurgical bonding) to create the final assembled club head. This merging of separately manufactured components achieves the performance benefits of advanced materials while managing manufacturing complexity through modular construction.
Data Source
AI summary
A multi-material iron type golf club head is disclosed. More specifically, the golf club head in accordance with the present invention may have a metallic portion and a lightweight portion, wherein the entirety of the striking face is made out of a metallic material while a majority of the chassis is made out of a lightweight material that serves to reduce the overall weight of the golf club head. The lightweight material, in addition to reducing the overall weight of the golf club head, may be comprised of an interior face support to at least partially support the metallic striking face portion to improve the performance and feel of the golf club head.