Golf Club Shaft Fitting via Infrared Motion Capture
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Solution Overview
Problem
Current golf club fitting methods are inefficient, inaccurate, and unreliable, relying on trial and error to determine the optimal shaft for a golfer, as they do not effectively capture and utilize the dynamic behavioral characteristics of the shaft during a golf swing.
Innovation Solution
A system using infrared motion capturing cameras to record location data of markers on a golf club as the golfer swings, calculating dynamic behavioral characteristics and comparing them to static shaft characteristics to recommend the optimal shaft based on performance simulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional trial and error methods are used to fit golf club shafts, then the fitting process can be completed with simple equipment, but the accuracy and reliability of the fitting results deteriorate
Solution Approach 1:
The patent replaces traditional mechanical trial-and-error fitting methods with an optical measurement system using infrared cameras and motion capture technology. This substitution enables precise measurement of shaft dynamic characteristics during the golf swing, transforming the fitting process from subjective guesswork to objective data-driven analysis.
Solution Approach 2:
The patent introduces markers as intermediaries attached to the golf club shaft and golfer's body. These markers serve as mediators between the physical swing motion and the optical measurement system, enabling the cameras to track and capture detailed kinematic data that would otherwise be impossible to obtain directly.
2Measurement precision
If dynamic behavioral characteristics of the shaft are captured during swing, then the fitting accuracy improves, but the time required for the fitting process increases
Solution Approach 1:
The patent performs preliminary calibration and setup of the motion capture system before the actual fitting session. Markers are pre-positioned on the shaft and golfer, and the camera system is pre-configured to track specific points of interest. This preliminary preparation enables rapid data collection during the actual swing analysis, reducing overall fitting time.
Solution Approach 2:
The patent captures shaft dynamic characteristics continuously throughout the entire golf swing motion rather than measuring discrete points. The high-speed infrared cameras record the shaft's behavior from address through impact and follow-through, providing complete temporal coverage of the swing cycle and enabling comprehensive analysis without requiring multiple separate measurements.
3Adaptability or versatility
If multiple shaft options are tested to find the optimal fit, then the adaptability of the fitting system improves, but the complexity of the selection process increases
Solution Approach 1:
The patent implements a feedback mechanism where the measured dynamic characteristics of each tested shaft are immediately analyzed and compared against the golfer's swing profile. The system provides real-time feedback on how well each shaft matches the golfer's unique swing patterns, enabling data-driven selection rather than random testing of multiple shafts.
Solution Approach 2:
The patent varies key parameters such as shaft flex, weight, and stiffness while measuring their effect on swing dynamics. By systematically changing these parameters and measuring the resulting changes in shaft behavior and swing characteristics, the system identifies the optimal parameter combination for each golfer, simplifying the selection process through structured parameter exploration.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method provides a precise and efficient way to determine the best golf club shaft for a golfer by analyzing their unique swing dynamics, improving the accuracy and consistency of the fitting process.
Implementation Method 1
A plurality of IR cameras are positioned around the golfer adapted to capture a plurality of location data of the plurality of reflective markers
Implementation Method 2
a plurality of reflective markers positioned on a golf club as it is being swung by a golfer
Data Source
AI summary
A method relating to an improved fitting system for a golf club shaft is disclosed herein. More specifically, the present invention utilizes specific data gathered from the golfer's golf swing itself to determine the best performing golf club shaft for this particular golf swing. Even more specifically, the present invention relates to the utilization of infrared motion capturing cameras to record the location data of a golf club shaft throughout a swing. Based on the location data captured, one or more dynamic behavioral characteristics can be calculated to determine one or more preferred shaft characteristics. Using the preferred shaft characteristics, a shaft can be recommended for the golfer having this particular golf swing. The current inventive fitting methodology is preferred to the archaic fitting method of using data gathered from the result orientated ball flight data together with a tedious process of having to try numerous different shafts.