Golf Club Head Face Thickness Layout for Ball Speed and Durability

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Solution Overview

Problem

Existing golf club heads face challenges in balancing ball flight characteristics, structural integrity, and durability, as adjustments to improve one aspect often compromise others.

Innovation Solution

A golf club head design featuring a striking face with variable thickness, including a thick central portion and tapered heel and toe portions, along with strategically positioned weights in the lower cavity, to enhance ball speed, launch angle, and uniformity while maintaining structural integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the striking face thickness is uniformly increased to improve structural integrity, then durability is improved, but ball speed and launch angle uniformity deteriorate

Engineering Contradiction:
Improvestructural integrityVSAvoidball flight consistency
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The striking face is designed with non-uniform thickness distribution, where the central portion has greater thickness for structural integrity while peripheral portions have reduced thickness to optimize ball flight characteristics. This local differentiation allows each region to serve its specific function: the thicker central area provides durability and structural support, while the thinner peripheral areas enable better ball speed and launch angle uniformity across the striking surface.

Inventive Principle:
Principle #3Local quality

2Speed

If the striking face is thinned to improve ball speed, then ball flight characteristics are improved, but structural integrity and durability worsen

Engineering Contradiction:
Improveball speedVSAvoidstructural integrity
Core Design Contradiction:
SpeedVSStrength

Solution Approach 1:

The striking face employs selective thickness reduction only in specific peripheral regions while maintaining adequate thickness in the central area. This localized thinning allows the face to achieve optimal ball speed and flight characteristics without compromising the overall structural integrity of the club head, as the thicker central portion continues to provide necessary strength and support.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The striking face is effectively segmented into different thickness zones: a thicker central portion for structural support and thinner peripheral portions for optimized ball interaction. This segmentation allows independent optimization of each zone's thickness to fulfill different functional requirements simultaneously.

Inventive Principle:
Principle #1Segmentation

3Reliability

If weights are added to the lower cavity to adjust center of gravity, then ball flight characteristics are improved, but device complexity increases

Engineering Contradiction:
Improveball flight controlVSAvoidclub head structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The weights are integrated directly into the lower cavity structure of the club head, merging the weight adjustment function with the existing structural design. This integration allows center of gravity optimization for improved ball flight control without significantly increasing overall device complexity, as the weights become part of the club head's structural assembly rather than separate add-on components.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4650014A1Golf club head with variable face thickness
Publication Date: 2025.11.19 ACUSHNET CO
  • EP4650014A1 patent drawingFigure 1
  • EP4650014A1 patent drawingFigure 2
  • EP4650014A1 patent drawingFigure 3

AI summary

A golf club head includes a striking face having a substantially flat frontal striking surface, and having a lower leading edge and an opposite upper topline edge; a topline extending rearward from the upper topline edge; a sole extending rearward from the lower leading edge; a support bar protruding rearwardly from the striking face; an upper cavity at least partially surrounded by the topline, an upper section of the striking face, and the support bar; and a lower cavity at least partially surrounded by the support bar, a lower section of the striking face, and the sole, wherein the lower section of the striking face includes a heel portion, a toe portion, and a thick portion between the heel portion and the toe portion, and wherein a thickness of the thick portion is greater than a thickness of the heel portion and a thickness of the toe portion.