Golf Club Face Variable Thickness for Ball Speed and Durability

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Solution Overview

Problem

Existing golf club head designs face challenges in balancing distance maximization with durability, particularly in iron type clubs where high stress points are distinct and require a unique face design that addresses the separation of impact locations.

Innovation Solution

An iron type golf club head with a striking face featuring two regions of increased thickness, one near the centroid and another at the midpoint of the full length scoreline, connected via a connecting member, providing structural integrity and consistent performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the thickness of the striking face is reduced to maximize coefficient of restitution and distance, then flexibility and distance gain are improved, but durability and resistance to mechanical failure deteriorate

Engineering Contradiction:

Improveball speedVSAvoidface durability

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The striking face is designed with variable thickness distribution, featuring a first region of increased thickness near the geometric center and a second region of increased thickness away from the center. This local quality variation allows the face to have reduced thickness in most areas for flexibility while having thickened regions for strength and durability.

Inventive Principle:

Principle #3Local quality

2Reliability

If the striking face is thickened to improve durability, then resistance to mechanical failure is improved, but flexibility and coefficient of restitution deteriorate

Engineering Contradiction:

Improveface durabilityVSAvoidface flexibility

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The striking face incorporates localized thickened regions rather than uniform thickness. The first region of increased thickness near the geometric center provides durability where high stresses occur during impact, while the second region of increased thickness away from the center addresses specific stress concentrations. The connecting member between these regions maintains structural integrity without requiring the entire face to be thick.

Inventive Principle:

Principle #3Local quality

3Reliability

If variable thickness regions are added to the striking face to address stress distribution, then durability is improved, but device complexity increases

Engineering Contradiction:

Improvestress distributionVSAvoidface structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The first region of increased thickness and the second region of increased thickness are connected via a connecting member, forming an integrated obround shaped thickened region. This merging approach consolidates multiple thickened areas into a unified structural feature, simplifying manufacturing while maintaining the benefits of localized thickness variations for stress distribution.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12623125B2Golf club head with variable thickness face

Publication Date: 2026.05.12 ACUSHNET CO

AI summary

A golf club head with improved striking face is disclosed. More specifically, the present invention relates to a golf club head wherein the striking face portion has two regions of increased thickness to improve the performance of the golf club head. The two regions of increased thickness may be connected via a connecting member to form an obround shaped thickened region.