Adjustable Golf Club Head Weighting System for Spin Control

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Solution Overview

Problem

Golf club heads with forward weighted designs often compromise on distance and straightness due to reduced moment of inertia and increased stiffness, while rearward weighting alone may not adequately reduce backspin, necessitating a balanced weight distribution system.

Innovation Solution

A weighting system for golf club heads featuring an elongated aperture with slidable weights and nuts, secured by fasteners, allowing for adjustable placement via scalloped recesses, which enables precise positioning of weight assemblies to optimize center of gravity and moment of inertia.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If forward weighted designs are used to reduce backspin, then spin control is improved, but moment of inertia is reduced compromising distance and straightness

Engineering Contradiction:
Improvebackspin rateVSAvoidmoment of inertia
Core Design Contradiction:
Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

The weight system is divided into multiple discrete weight members (first weight member, second weight member, third weight member) that can be independently positioned within the club head. This segmentation allows each weight to contribute differently to spin control while collectively maintaining proper moment of inertia through distributed placement in forward, rearward, and lateral positions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different portions of the club head are assigned different weight densities and positioning characteristics. Forward weights are positioned to specifically address backspin reduction, while rearward and lateral weights are positioned to maintain stability and moment of inertia. This local differentiation of weight placement optimizes both spin control and distance characteristics.

Inventive Principle:
Principle #3Local quality

2Object-affected harmful factors

If forward weights are placed close to the face to reduce backspin, then spin control is improved, but face flexibility is compromised increasing stiffness

Engineering Contradiction:
Improvebackspin rateVSAvoidface flexibility
Core Design Contradiction:
Object-affected harmful factorsVSStrength

Solution Approach 1:

The weighting system applies localized mass distribution where weights are positioned in specific regions (forward, rearward, lateral) rather than uniformly across the face. This allows forward weights to be positioned close to the face for spin control while the overall face structure and rearward/lateral weights maintain proper flexibility and strength characteristics.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Rearward and lateral weight members are positioned to counterbalance the stiffness-inducing effect of forward weights near the face. This counterweight distribution maintains face flexibility by distributing mass away from the critical face impact zone while still achieving the desired center of gravity position for spin control.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Object-affected harmful factors

If both forward and rearward weights are added to optimize spin control, then spin control is improved, but device complexity increases

Engineering Contradiction:
Improvebackspin rateVSAvoidweighting system complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Multiple weight members (first, second, and third weight members) are combined into a single integrated weighting system housed within one club head. This merging approach achieves complex spin control objectives through coordinated weight placement while maintaining a unified, manageable device structure rather than separate components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The weighting system incorporates adjustable and reconfigurable weight placement capabilities, allowing the distribution of mass to be dynamically optimized for different playing conditions and player preferences. This dynamic adaptability achieves superior spin control while the modular nature keeps the overall system complexity manageable.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11207577B1Systems and methods for a weighted golf club head
Publication Date: 2021.12.28 COBRA GOLF INC
  • US11207577B1 patent drawing
  • US11207577B1 patent drawing
  • US11207577B1 patent drawing

AI summary

A golf club head includes a body, a first weight assembly, and a second weight assembly. The body defines an interior cavity and an exterior surface having a forward-most point and a rearward-most point. The body includes a face disposed within a forward portion of the golf club head, a sole defining a bottom portion of a golf club head, a crown defining a top portion of the golf club head, and a skirt positioned about a portion of a periphery of the golf club head between the sole and the crown. The first weight assembly extends between the toe and the heel, has a first center of gravity, and is configured to engage a forward weight cavity mount that is formed in the sole. The second weight assembly defines a second center of gravity and is configured to engage a rearward weight aperture that is formed in the body.