Heat-Strengthened Glass Rebound Surface for Sports Training

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Solution Overview

Problem

Conventional sports training walls for racquet sports like tennis are often temporary, costly, and deteriorate quickly, failing to provide a durable and realistic training experience.

Innovation Solution

A free-standing sports training wall featuring a heat-strengthened glass panel attached to a frame, providing a smooth, transparent, and durable rebound surface with markings to simulate a tennis net, which is resistant to damage and maintains its effectiveness over time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If blockwork walls, mesh walls, or metal sheet walls are used to form a planar rebound surface, then the training wall can be constructed, but the rebound surface deteriorates over time with reducing strength and smoothness

Engineering Contradiction:
Improvedurability of rebound surfaceVSAvoidservice life of rebound surface
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent applies heat-strengthening treatment to the glass panel, fundamentally changing its physical properties. This thermal treatment increases the glass's strength, hardness, and resistance to impact and weathering, directly resolving the durability and service life issues of conventional rebound surfaces.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses a glass panel as a composite material solution, combining the transparency and smoothness of glass with the strength enhancement from heat-strengthening. This creates a rebound surface that maintains its properties over time without the deterioration seen in blockwork, mesh, or metal sheet alternatives.

Inventive Principle:
Principle #40Composite materials

2Reliability

If a heat-strengthened glass panel is used for the rebound surface, then durability and smoothness are improved, but the cost and complexity of manufacture increase

Engineering Contradiction:
Improvedurability of rebound surfaceVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The heat-strengthening process, while adding a manufacturing step, is a well-established industrial process that transforms ordinary glass into a durable material. The parameter change in thermal treatment creates a product with significantly improved reliability, justifying the additional manufacturing complexity.

Inventive Principle:
Principle #35Parameter changes

3Illumination intensity

If a transparent rebound surface is used, then visual realism is improved, but the strength and impact resistance may be reduced

Engineering Contradiction:
Improvetransparency for visual aspectVSAvoidimpact resistance
Core Design Contradiction:
Illumination intensityVSStrength

Solution Approach 1:

The heat-strengthening process fundamentally changes the physical parameters of the glass, increasing its strength and impact resistance by a factor of 3-5 times compared to ordinary glass. This allows the glass to maintain transparency while withstanding tennis ball impacts and environmental stresses.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite solution by combining transparent glass with heat-strengthening treatment, achieving a material that possesses both optical transparency and mechanical strength suitable for sports training applications.

Inventive Principle:
Principle #40Composite materials

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 solution offers a long-lasting, durable, and realistic training experience for tennis players, minimizing unwanted deflections and allowing for precise practice while withstanding impacts and varying weather conditions.

Implementation Method 1

a substantially smooth heat-strengthened glass panel attached to the frame, the glass panel forming at least part of a rebound surface

Methodology Applied
Scientific EffectHeat treatment: Heat Treatment

Data Source

PatentEP4245384B1Free-standing sports training wall
Publication Date: 2024.12.11 JB CORRIE & CO LTD
  • EP4245384B1 patent drawingFigure 1
  • EP4245384B1 patent drawingFigure 2~3
  • EP4245384B1 patent drawingFigure 4

AI summary

A free-standing sports training wall is provided, the free-standing sports training wall comprising: a frame; and a substantially smooth heat-strengthened glass panel attached to the frame, the glass panel forming at least part of a rebound surface of the free-standing sports training wall.