Safety Golf Ball with Soft Outer Core and Segmented Hardness
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Solution Overview
Problem
Conventional golf balls are hard and noisy, posing a risk of injury when hit indoors, and lack suitable alternatives for indoor practice and screen golf simulations, which require a safer and more realistic performance.
Innovation Solution
A safety golf ball design featuring a soft outer core with elastic recovery, made of polyurethane sponge, and a multi-layer structure with gradually decreasing hardness, combined with a cover having rotation recognition patterns for accurate simulation, mimicking the performance of a real golf ball.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hard golf ball is used to achieve realistic driving distance and spin performance, then the practice effect is improved, but the risk of injury and noise increases making it unsuitable for indoor use
Solution Approach 1:
The golf ball is divided into multiple layers with different hardness levels. The inner core maintains higher hardness for realistic performance, while the outer cover is softer to reduce injury risk and noise, allowing the ball to be used safely indoors while maintaining practice effectiveness
Solution Approach 2:
Different regions of the golf ball have different hardness properties. The inner core is harder to provide realistic feel and performance, while the outer cover is softer to minimize harmful effects during indoor practice, creating localized quality variations that satisfy conflicting requirements
2Object-affected harmful factors
If a soft golf ball is used to reduce injury risk and noise for indoor practice, then safety is improved, but the driving distance and spin performance deteriorate
Solution Approach 1:
The golf ball is segmented into an inner core and outer cover with different hardness levels. The inner core maintains higher hardness to preserve driving distance and spin performance, while the outer cover is softer to reduce injury risk, allowing both requirements to be satisfied simultaneously
Solution Approach 2:
The golf ball uses composite material construction with an inner core made of harder material for performance and an outer cover made of softer material for safety, combining materials with different properties to achieve both injury reduction and maintained performance
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
The safety golf ball achieves similar driving distances and performance to real golf balls while being safe for indoor use, reducing the risk of injury and allowing for effective practice and simulation, with the soft outer core maintaining elasticity and the recognition patterns enabling accurate trajectory measurement.
Implementation Method 1
a soft outer core having hardness lower than that of the inner core, wherein the hardness of the outer core is gradually reduced outward
Data Source
AI summary
The present invention relates to a safety golf ball for practice and, more specifically, to a safety golf ball for practice, by which a similar effect to the practice using a real golf ball can be obtained and a safety accident can be prevented. To this end, the safety golf ball for practice includes a soft outer core on an existing inner core so as to have a fast elasticity recovery speed.