Golf Club Head Cavity Structure for CG and Vibration Tuning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing golf club heads face challenges in optimizing the center of gravity (CG) and moment of inertia (MOI) for desired trajectory and spin rate, with limitations in material distribution and vibration management affecting performance.
Innovation Solution
The use of multiple materials and internal cavity structures within the golf club head, combined with filler materials, to adjust mass distribution and incorporate vibration-damping properties, enhancing the club's feel and sound.
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 for desired trajectory and spin rate, but the device complexity increases
Solution Approach 1:
The golf club head is divided into multiple material zones with distinct functions: a face portion made of metal for durability and ball contact, and a cavity portion filled with polymer material for weight optimization. This segmentation allows independent optimization of each zone's properties to achieve desired center of gravity and moment of inertia without excessive overall complexity
Solution Approach 2:
The patent employs composite construction by combining metal face portion with polymer-filled cavity portion. This composite approach enables optimization of both structural integrity (metal) and mass distribution (polymer), achieving precise center of gravity control and moment of inertia optimization while maintaining manufacturability
2Object-affected harmful factors
If filler materials are used in internal cavities, then vibration-damping properties are improved enhancing feel and sound, but the manufacturing process complexity increases
Solution Approach 1:
The design extracts the vibration damping function into a separate polymer material that is injected into the cavity portion. This allows the metal face portion to focus on structural integrity and ball contact, while the polymer filler specifically addresses vibration damping, enhancing feel and sound without requiring complex integration of multiple functions into single components
Solution Approach 2:
The polymer filler material acts as an intermediary substance that absorbs and dampens vibrations between the metal face portion and the club body. This intermediary layer improves vibration damping properties and enhances the acoustic characteristics (feel and sound) while maintaining a relatively simple manufacturing process through injection molding
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 approach optimizes the CG and MOI, improves the club's performance by providing better feel and sound, and enhances the launch velocity of the golf ball.
Implementation Method 1
The use of multiple materials and internal cavity structures within the golf club head, combined with filler materials, to adjust mass distribution and incorporate vibration-damping properties, enhancing the club's feel and sound
Data Source
AI summary
Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head includes a body portion with a first interior portion and a second interior portion. The golf club also includes a first mass portion below a horizontal midplane of the body portion, a second mass portion below the horizontal midplane, a filler material in at least one of the first interior portion of the body portion and the second interior portion of the body portion, and means for separating the first interior portion of the body portion and the second interior portion of the body portion. The first mass portion and the second mass portion have different masses. Other examples and embodiments may be described and claimed.