Golf Club Fitting Device Using Driver Swing Index for Shaft Selection

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Solution Overview

Problem

Conventional golf club fitting methods are limited to measuring the swing motion of a driver, making it inconvenient to fit golf clubs other than drivers, as they require separate measurements for various types of clubs, which can be time-consuming and impractical.

Innovation Solution

A golf club fitting device and method that measures the swing motion of a driver to calculate a swing index, determining the optimum characteristics of a shaft for a different type of golf club, such as an iron club, by using a measuring device, calculating part, and selection part to match the shaft characteristics, allowing for the fitting of various golf clubs without direct measurement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If separate measurements are conducted for each type of golf club, then the fitting accuracy for each club is improved, but the time consumption and operational complexity increase significantly

Engineering Contradiction:
Improvefitting accuracyVSAvoidtime consumption
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent segments the fitting process into two distinct phases: (1) a comprehensive swing measurement phase using a driver to capture the golfer's fundamental swing characteristics, and (2) a club-specific parameter determination phase where shaft characteristics for different club types are calculated based on predetermined relationships. This segmentation allows the core swing data to be reused across multiple club types, reducing redundant measurements while maintaining fitting accuracy for each specific club.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary measurement of the golfer's swing characteristics using a driver before determining the specific shaft requirements for other club types. The swing index obtained from this preliminary action serves as a foundation for subsequently calculating the optimal shaft characteristics (such as flex, weight, and stiffness) for iron clubs, putters, and other golf clubs without requiring separate swing measurements for each club type.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If separate measurements are conducted for each type of golf club, then the fitting precision for various clubs is improved, but the procedure complexity increases

Engineering Contradiction:
Improvefitting precisionVSAvoidprocedure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent creates a universal fitting system where a single swing measurement using a driver serves multiple purposes: it determines the golfer's fundamental swing characteristics and subsequently guides the selection of shaft parameters for multiple different club types (iron clubs, putters, drivers, etc.). The swing index obtained universally applies across different club categories, reducing the need for separate measurement procedures for each club type while maintaining fitting precision.

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

Solution Approach 2:

The patent changes the approach from measuring multiple physical parameters across different clubs to measuring a unified swing index that can be transformed into club-specific shaft parameters. By converting the swing measurement into a standardized index and then applying predetermined relationships to calculate shaft characteristics (flex, weight, stiffness), the system simplifies the overall procedure while preserving the ability to optimize for each specific club type.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If swing motion of driver is used to determine shaft characteristics for other clubs, then the efficiency of fitting process is improved, but the adaptability to different club types may be reduced

Engineering Contradiction:
Improvefitting efficiencyVSAvoidadaptability to different club types
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent transforms the swing measurement data into a standardized swing index, which then serves as a basis for calculating different shaft parameters (flex, weight, stiffness) specific to each club type. This parameter transformation approach allows the system to maintain high fitting efficiency through unified measurement while adapting to the specific requirements of different club types through customized parameter calculations based on predetermined relationships between swing characteristics and shaft properties for each club category.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240108955A1Golf club fitting device, method and program
Publication Date: 2024.04.04 SUMITOMO RUBBER INDUSTRIES LTD
  • US20240108955A1 patent drawing
  • US20240108955A1 patent drawing
  • US20240108955A1 patent drawing

AI summary

A fitting device for selecting a golf club suitable for a golfer comprises: an acquisition part that acquires measurement values obtained by measuring a golfer's swing motion of a first golf club with a measuring device; and a calculation part that calculates a swing index related to the swing motion based on the measurement values; a determination part that determines, based on the swing index, a second optimum characteristic index indicating characteristics of a shaft for a second golf club different from the first golf club; and a selection part that selects at least a shaft for the second golf club that matches the second optimum characteristic index.