Composite Golf Club Head Structure for Dispersion Control

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Solution Overview

Problem

Large golf club heads with high moments of inertia face challenges in managing larger products of inertia, leading to increased dispersion, which conventional adjustments cannot compensate for.

Innovation Solution

A golf club head design comprising a crown portion made of continuous carbon fiber reinforced epoxy material and a sole portion made of chopped carbon fiber reinforced vinyl ester sheet molding compound material, with specific thickness ranges and attachments, to manage moments and products of inertia.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If large volume golf club head is designed to increase moments of inertia, then stability and performance are improved, but products of inertia become larger leading to increased dispersion

Engineering Contradiction:
Improvegolf club head volumeVSAvoiddispersion control
Core Design Contradiction:
Volume of moving objectVSManufacturing precision

Solution Approach 1:

The golf club head is divided into multiple components including a crown portion, sole portion, face component, and aft component. This segmentation allows independent optimization of each component's mass distribution to control moments of inertia while minimizing products of inertia, thereby reducing dispersion despite large overall volume

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs carbon fiber reinforced composite materials for the crown and sole portions. These composite materials provide high strength-to-weight ratio and allow precise control of mass distribution, enabling large volume design while maintaining optimized moment of inertia characteristics and minimizing detrimental product of inertia effects

Inventive Principle:
Principle #40Composite materials

2Manufacturing precision

If face bulge radius and face roll radius are adjusted to compensate for gear effect, then spin control is improved, but ability to compensate for products of inertia is limited

Engineering Contradiction:
Improvespin controlVSAvoidproduct of inertia compensation
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

By segmenting the club head into separate crown, sole, face, and aft components, the design enables independent adjustment of mass distribution in each section. This goes beyond traditional face bulge/roll adjustments by allowing modification of products of inertia through component-level mass positioning, particularly in the crown and sole portions

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different material properties and thicknesses to different local regions. The crown portion uses continuous carbon fiber reinforcement while the sole portion uses chopped carbon fiber reinforcement with different thickness ranges. This local quality variation enables precise control of mass distribution to address product of inertia issues that cannot be solved by uniform face geometry adjustments

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12629567B2Golf club head
Publication Date: 2026.05.19 CALLAWAY GOLF COMPANY
  • US12629567B2 patent drawing
  • US12629567B2 patent drawing
  • US12629567B2 patent drawing

AI summary

A golf club head with a central body component is disclosed herein. The golf club also has a face component and an aft component. The face component is attached to a front opening of the central body and the aft component is attached to a rear opening of the central body. A face insert of the face component has a plurality of thickness rings around a central section.