Golf Club Head Sole Wall Thickness Distribution
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Solution Overview
Problem
Conventional golf club heads lack an optimal wall-thickness distribution in the sole portion, which limits their performance and effectiveness in achieving higher moments of inertia and improved rebound performance.
Innovation Solution
A golf club head design featuring a center thin-wall part and an outer thick-wall part with specific wall thickness distributions, including a first and second thick-wall part positioned to enhance the moments of inertia and lower the center of gravity, thereby improving rebound performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the wall thickness of the sole portion is uniformly increased, then the moment of inertia is improved, but the rebound performance deteriorates
Solution Approach 1:
The sole portion is designed with non-uniform wall thickness distribution, creating different regions (first thin-wall portion, first thick-wall portion, second thick-wall portion) with specific thickness characteristics in different locations to simultaneously achieve high moment of inertia and good rebound performance
Solution Approach 2:
The sole portion is divided into multiple segments with different wall thickness characteristics (thin-wall portions and thick-wall portions) positioned at specific locations, allowing independent optimization of different functional requirements
2Strength
If the wall thickness is increased to improve structural strength, then the moment of inertia is improved, but the weight increases
Solution Approach 1:
Instead of uniformly increasing wall thickness throughout the sole portion, the design applies increased thickness only in specific regions (first thick-wall portion and second thick-wall portion) where structural strength and moment of inertia are needed, while maintaining thinner walls in other areas to control overall weight
Data Source
AI summary
A golf club head includes a face portion including a hitting face, a sole portion, a crown portion, and a hosel portion. The sole portion includes a center thin-wall part and an outer thick-wall part that is formed on a sole outer edge side of the center thin-wall part and is thicker than the center thin-wall part. The outer thick-wall part includes a first thick-wall part that is formed over a region including a position of a center of gravity of the head in a face-back direction, and a second thick-wall part that is positioned on a back side of the first thick-wall part and is thicker than the first thick-wall part. The outer thick-wall part of the sole portion may further include a third thick-wall part that is positioned on the back side of the second thick-wall part and is thinner than the second thick-wall part.