Golf Club Head Beam Structure for Sound and Launch Angle

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Solution Overview

Problem

Existing golf club heads struggle to simultaneously improve hitting sound and feeling while increasing the launch angle of the ball.

Innovation Solution

A golf club head design featuring a body portion with a beam structure and a butting structure that distributes stress, combined with a crown portion attached to a crown opening, to enhance rigidity and adjust the launch angle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a butting structure is provided to reinforce the face portion, then the rigidity of the face portion is improved, but the hitting sound and hitting feeling deteriorate

Engineering Contradiction:
Improverigidity of face portionVSAvoidhitting sound and hitting feeling
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

The butting structure is positioned specifically within a localized region on the back surface of the face portion, rather than being distributed across the entire face. This localized reinforcement maintains rigidity where needed while preserving the acoustic properties and hitting feeling in other areas of the face.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The harmful effects of the butting structure on hitting sound and feeling are minimized by making the structure thin and compact, allowing the stress wave from ball impact to pass through quickly without being excessively dampened or distorted by the reinforcement structure.

Inventive Principle:
Principle #21Skipping (Rushing through)

2Weight of moving object

If the crown opening portion is provided, then the weight distribution is optimized, but the rigidity of the crown portion deteriorates

Engineering Contradiction:
Improveweight distributionVSAvoidrigidity of crown portion
Core Design Contradiction:
Weight of moving objectVSStrength

Solution Approach 1:

The crown opening portion is divided into multiple segments by beam portions that extend across the opening. These beam portions act as structural dividers that maintain rigidity while allowing the crown opening to exist, effectively segmenting the opening into smaller rigid zones rather than a single large weak area.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The crown portion incorporates both solid material regions and the crown opening portion with beam structures, creating a composite structure that optimizes weight distribution while maintaining overall rigidity through the strategic placement of material and void spaces.

Inventive Principle:
Principle #40Composite materials

3Strength

If the beam portion divides the crown opening portion, then the rigidity is improved, but the manufacturing complexity increases

Engineering Contradiction:
ImproverigidityVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The beam portions serve multiple functions simultaneously: they divide the crown opening to improve rigidity, act as attachment structures for the crown portion, and contribute to the overall structural framework. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in manufacturing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12539451B2Golf club head
Publication Date: 2026.02.03 BRIDGESTONE SPORTS CO LTD
  • US12539451B2 patent drawing
  • US12539451B2 patent drawing
  • US12539451B2 patent drawing

AI summary

A golf club head includes a body; a face; and a crown. The body includes a crown opening; a beam dividing the crown opening; and a sole. The face includes a front surface that strikes a ball; and a back surface. The crown closes the crown opening. The sole has a butting structure that contacts the back surface of the face at a contact portion. As viewed in a crown-sole direction, a length from a face toe end to a face heel end in a toe-heel direction is set as a face length, and each of a toe edge and a heel edge of the beam and the contact portion is arranged within a 15% range of the face length in the toe-heel direction from an imaginary straight line extending in a face-back direction and through a center of the face length.