Golf Club Head Junction Using Complementary Ledge Members

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Solution Overview

Problem

Current golf club head technologies lack advancements in design and manufacturing, particularly in the junction formation between sections, which can affect the distribution of force and strength during impact.

Innovation Solution

The design incorporates complementary ledge members with specific vertical and horizontal sides to form a strong junction area, allowing for separate sections of the golf club head to engage and distribute force effectively, using materials like metals and composites for optimized performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a two-piece golf club head is joined by a brazed joint, then the club head can be manufactured with separate body and face portions, but the junction strength and force distribution are insufficient

Engineering Contradiction:
Improvemanufacturing of separate body and face portionsVSAvoidjunction strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The golf club head is divided into multiple separate sections (body, face, crown, sole) that are manufactured independently and then joined together through engagement features, allowing each section to be optimized separately while maintaining overall structural integrity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The junction area is designed with ledge members that extend in multiple dimensions (vertical sides, horizontal sides, depth), creating a three-dimensional engagement structure that distributes forces across a larger volume rather than a simple two-dimensional brazed joint

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If ledge members are used to engage sections, then the junction area is formed, but without a third vertical side the engagement is insufficient

Engineering Contradiction:
Improveengagement of sectionsVSAvoidengagement reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

Each section is designed with complementary ledge members that have multiple sides (first vertical side, second vertical side, third vertical side, horizontal sides) that segment the engagement interface into multiple contact surfaces, increasing the reliability of the connection

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different sections may be manufactured from different materials (metal, composite) and the ledge member design accommodates these material differences by providing a mechanical engagement structure that ensures reliable connection regardless of material properties

Inventive Principle:
Principle #40Composite materials

3Strength

If sections are engaged to form the club head, then force can be distributed over a larger area, but the device complexity increases

Engineering Contradiction:
Improveforce distributionVSAvoidmulti-section structure
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

Multiple sections with complementary ledge members are merged through engagement to form the complete club head, combining the benefits of separate manufacturing with the strength of an integrated structure

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ledge members are designed to self-align and self-engage during assembly, with the first vertical side matching with the first vertical side of the complementary ledge member, reducing the need for complex alignment procedures or additional fastening mechanisms

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2550070B1Golf clubs and golf club heads with separate portions
Publication Date: 2020.07.22 KARSTEN MFG CORP
  • EP2550070B1 patent drawingFigure 1
  • EP2550070B1 patent drawingFigure 2~3
  • EP2550070B1 patent drawingFigure 4

AI summary

Golf club heads including first section (113, 117) and a second section (115, 119) that are separate and distinct from one another and are engaged to form at least a portion of the golf club head. The first section may include a first ledge member (113a) and the second section may include a second ledge member (115a) and the first ledge member may be engaged with the second ledge member to form a junction area. The first ledge member includes a first vertical side (113b) and a second vertical side (113d) and a horizontal side (113c) therebetween and the second ledge member may include a first vertical side (115b) and a second vertical side (115d) and a horizontal side (115c) therebetween. The first and second ledge members are complementary. Golf clubs including these club heads and methods of making a golf club and golf club heads also are provided.