Golf Coupling Mechanism Adjusting Lie and Loft Angles

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Solution Overview

Problem

Golf clubs with fixed coupling mechanisms between shafts and heads require numerous configurations to accommodate individual characteristics and preferences, leading to instability and stress concentrations, and lack adjustability for changes in user characteristics or preferences.

Innovation Solution

A golf coupling mechanism featuring a shaft sleeve with arcuate surfaces that restrict rotation relative to the golf club head, combined with a securing fastener and washer mechanism, allowing for adjustable lie and loft angles by seating the sleeve couplers against complementary receiver couplers, enabling secure and flexible alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If adjustable coupling mechanisms are used to provide flexibility in changing club features, then adaptability is improved, but stability deteriorates due to instabilities and stress concentrations at the coupling

Engineering Contradiction:

Improveadjustability of club featuresVSAvoidstability of club assembly

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The coupling mechanism is divided into separate components: a shaft sleeve with couplers, a receiver with complementary couplers, and a securing fastener. This segmentation allows each component to be optimized independently while maintaining overall stability and adjustability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The coupling mechanism transitions from a fixed static connection to a dynamic adjustable connection. The shaft sleeve can be rotated to different angular positions and secured at those positions, allowing the club features to be changed while maintaining stability at each set position.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If multiple golf clubs with fixed coupling mechanisms are manufactured to accommodate individual characteristics, then adaptability is improved, but device complexity increases

Engineering Contradiction:

Improvecustom-fit capabilityVSAvoidnumber of club configurations

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single golf club assembly with the adjustable coupling mechanism can serve multiple functions by allowing adjustment of different club features (shaft type, loft angle, lie angle). This replaces the need for multiple separate clubs with different fixed configurations, reducing overall device complexity while maintaining adaptability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If adjustable coupling mechanisms are implemented, then ease of operation is improved through flexibility, but manufacturing precision requirements increase

Engineering Contradiction:

ImproveadjustabilityVSAvoidcoupling alignment precision

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The couplers on the shaft sleeve and receiver are designed with asymmetric complementary geometries. This asymmetric design provides self-alignment during assembly, reducing the stringency of manufacturing precision requirements while maintaining ease of operation and adjustability.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS9192823B2Golf coupling mechanisms and related methods

Publication Date: 2015.11.24 KARSTEN MFG CORP

AI summary

Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.