Golf Club Head Protrusion Weight Heel CG Shift
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Solution Overview
Problem
Current golf club head designs are limited in optimizing the weighting scheme to address issues like fading or slicing, as they are constrained by the club head's shape and volume, necessitating a solution that can enhance the moment of inertia without increasing mass or altering the club's appearance significantly.
Innovation Solution
The design incorporates a protruding weight external to the club head's body volume, shifting the center of gravity towards the heel and increasing the moment of inertia by extending the distance between the protrusion weight's center of gravity and the club head's center of gravity, while maintaining the club's aesthetic and structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If internal weighting is used within the club head body, then the center of gravity can be adjusted, but the moment of inertia is limited by the club head's shape and volume
Solution Approach 1:
The patent moves the weight from the internal three-dimensional space to an external position, effectively adding a fourth dimension (external attachment) to achieve greater moment of inertia without increasing the club head's internal volume constraints
Solution Approach 2:
A protrusion structure serves as an intermediary element that extends from the club head body, providing a mounting point for the weight while maintaining the club head's aesthetic appearance and structural integrity
2Force
If mass is increased to improve weighting scheme, then the moment of inertia increases, but the club's appearance and balance are altered
Solution Approach 1:
The weight is concentrated in a specific localized region (the protrusion at the heel) rather than distributed throughout the club head, allowing precise control of the center of gravity while maintaining overall aesthetic balance
Solution Approach 2:
The protrusion weight creates a visual counterbalance that copies or mirrors the visual weight of the club head body, maintaining aesthetic symmetry while achieving functional balance
3Ease of operation
If the center of gravity is shifted towards the heel, then slice spin is reduced, but the club head's balance and feel may be affected
Solution Approach 1:
The protrusion weight acts as a counterweight that offsets the natural balance point of the club head, creating an artificial center of gravity position that promotes straighter shots while maintaining overall club stability
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 improves swing consistency by reducing slice spin and increasing hook spin, allowing for higher launch angles and more optimal trajectories, enhancing user confidence and performance without adding mass or altering the club's appearance.
Implementation Method 1
A moment of inertia of the club head can be increased due to a distance extension of a distance between the center of gravity of the protrusion weight and a center of gravity of the club head
Data Source
AI summary
A golf club head can comprise a head body and a protrusion weight coupled thereto. The protrusion weight can protrude from at least the heel portion of the head body. The head center of gravity of the golf club head can be defined by both a mass of the head body and a mass of the protrusion weight. The body center of gravity of the head body can be defined by the mass of the head body independent of the mass of the protrusion weight. A weight center of gravity of the protrusion weight can be defined by the mass of the protrusion weight independent of the mass of the head body, and can be external to a body volume of the head body. The protrusion weight can be at least partially visible from an exterior of the club head. Other embodiments and related methods are also disclosed herein.