Golf Club Head Gap Decoupling for COR and CG Control
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Solution Overview
Problem
Current golf club designs face challenges in maximizing performance benefits while minimizing design trade-offs, particularly in achieving a high coefficient of restitution (COR) and locating the center of gravity (CG) proximate to the face without compromising structural integrity and mass relocation.
Innovation Solution
The golf club head incorporates a coefficient of restitution feature defined as a gap in the body, with a modular weight port and weight pad to relocate mass low and forward, decoupling the face from the sole and allowing greater deflection for improved COR, particularly in fairway wood type golf clubs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the face is decoupled from the sole and a gap is introduced in the body, then the coefficient of restitution is improved through greater deflection, but the structural integrity may be compromised
Solution Approach 1:
The club head is divided into separate components: the face is decoupled from the sole through an introduced gap, allowing independent movement and deflection of the face portion while maintaining overall structural integrity through the modular construction
Solution Approach 2:
The gap is strategically positioned to allow localized deflection where needed for improved coefficient of restitution, while other portions of the club head maintain sufficient rigidity and structural strength through appropriate material distribution and geometric design
2Ease of operation
If mass is relocated low and forward using a modular weight port, then the center of gravity is optimized for playability, but the device complexity increases
Solution Approach 1:
The weight system is modularized with a separate weight port and removable weight members, allowing independent adjustment of mass distribution without redesigning the entire club head structure
Solution Approach 2:
The modular weight port enables dynamic adjustment of the center of gravity position, allowing the club to be customized for different playing conditions and player preferences while maintaining a compact overall design
3Reliability
If the center of gravity is located proximate to the face, then the ball flight characteristics are improved by reducing dynamic lofting, but the weight distribution becomes difficult to control
Solution Approach 1:
The weight port is positioned to concentrate mass in the forward region of the club head, creating a localized density increase that shifts the center of gravity forward without requiring complex overall weight distribution throughout the entire club head structure
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 COR across the face, especially for off-center strikes, and allows for a low and forward CG location, improving playability and ball flight characteristics by reducing dynamic lofting and spin, while maintaining structural integrity and design flexibility.
Implementation Method 1
a coefficient of restitution feature defined in the body; wherein the coefficient of restitution feature defines a gap in the body
Data Source
AI summary
A golf club head includes a face; a body, the body defining an interior and an exterior; the face and the body together defining a center of gravity, the center of gravity being proximate the face; a coefficient of restitution feature defined in the body; wherein the coefficient of restitution feature defines a gap in the body. A golf club head includes a face and a golf club body; the face and the golf club body defining a center of gravity, the center of gravity defined a distance, Δz, from a ground plane as measured along a z-axis, the center of gravity defined a distance, CGy, from the center face along the y-axis.