Golf Club Shaft Fitting Using Grip-Angular Velocity Sensors
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Solution Overview
Problem
Current golf club fitting methods are limited by the size and cost of equipment, and they do not accurately reflect the entire golf swing, leading to suboptimal shaft selection for golfers.
Innovation Solution
A method using a sensor attached to the golf club grip to measure angular velocities about three axes, allowing for the determination of swing characteristics from address to impact, enabling the selection of a shaft based on detailed specifications that improve flight distance, directionality, and ease of swinging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional fitting methods using large-scale computation devices and complex apparatus are used, then measurement precision and swing evaluation accuracy are improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces complex mechanical measurement apparatus with a sensor-based system that attaches to the golf club grip. The sensor measures angular velocities about three axes during the swing, eliminating the need for large-scale computation devices and complex mechanical apparatus while maintaining measurement accuracy.
Solution Approach 2:
The patent introduces a sensor as an intermediary element attached to the golf club grip. This sensor serves as a mediator between the golfer's swing and the measurement system, capturing swing characteristics through angular velocity measurements without requiring complex external apparatus.
2Device complexity
If traditional fitting methods evaluating only limited swing phases are used, then device complexity is reduced, but measurement precision and swing evaluation accuracy deteriorate
Solution Approach 1:
The patent enables continuous measurement of swing characteristics from address through impact by attaching the sensor to the golf club grip. The sensor continuously captures angular velocity data about three axes throughout the entire swing sequence, providing comprehensive evaluation without requiring complex phase-by-phase measurement apparatus.
3Measurement precision
If detailed shaft specifications based on multiple swing characteristic amounts are used, then fitting accuracy and shaft selection precision are improved, but device complexity and measurement system complexity increase
Solution Approach 1:
The patent makes the simple sensor attached to the grip perform multiple measurement functions simultaneously. It measures angular velocities about three axes (x, y, z directions), capturing multiple swing characteristic amounts including wrist cock angular velocity changes, thereby enabling detailed shaft specification evaluation without increasing device complexity.
Data Source
AI summary
A fitting method of a shaft of a golf club for selecting a shaft matching a golfer based on a swing of the golfer. The method includes the steps of obtaining measurement values from a sensor attached to a grip of a golf club; determining address, top, and impact of a swing from the measurement values; and selecting a shaft that matches a golfer through a usage of the swing characteristic amounts and values.