Sports Ball Rebounder Cable Tensioning System

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Solution Overview

Problem

Existing ball rebounding devices for sports, using bungee cords or spring elements, lose their rebounding capacity over time due to repeated use, necessitating an improved solution that maintains performance.

Innovation Solution

A rebounding device featuring a frame with a net and a cable tensioning system that keeps the net taut, along with adjustable legs for angle adjustment, utilizing non-elastic or elastic materials for the net and cable, ensuring consistent performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If bungee cords or spring elements are used to hold the net, then the net can be held within the frame, but the rebounding capacity is lost over time due to repeated use

Engineering Contradiction:

Improverebounding capacityVSAvoidservice life

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent removes the elastic elements (bungee cords, spring elements) from the system and replaces them with a cable tensioning system. This extraction eliminates the component that degrades over time while maintaining the net-holding function through an alternative mechanism that does not suffer from fatigue and loss of tension.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the elastic mechanical system (bungee cords/springs that rely on material elasticity) with a cable tensioning system that uses friction and mechanical advantage. This substitution transitions from an elastic deformation-based mechanism to a friction-based mechanical system that maintains tension without degradation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If nonelastic or elastic materials are used for the net and cable, then consistent rebounding performance is achieved, but the device requires frequent adjustments or replacements

Engineering Contradiction:

Improverebounding performance consistencyVSAvoidmaintenance time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent changes the physical parameters of the tensioning system by using high-friction surfaces and mechanical advantage mechanisms. This allows the cable to maintain tension without the parameter degradation that affects elastic materials, eliminating the need for frequent adjustments while maintaining consistent rebounding performance.

Inventive Principle:

Principle #35Parameter changes

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 device maintains its rebounding capacity over time, allowing for effective and consistent practice without the need for frequent adjustments or replacements, enhancing individual training in sports.

Implementation Method 1

a cable extending around a perimeter of the net and a cable tensioning system configured to tension the cable around the perimeter of the net and thereby pull the net taut within the frame opening

Methodology Applied

Scientific EffectTension: Tension

Implementation Method 2

each of the at least two legs includes a pivotal foot configured to adjust an angle of the net relative to a ground engaging surface

Methodology Applied

Scientific EffectPivoting: Hinge

Data Source

PatentUS11819747B2Rebounding device for sports ball

Publication Date: 2023.11.21 FOOTCARE LLC

AI summary

A rebounding device for sports balls including a frame defining a frame opening, a net disposed within the frame opening, a cable extending around a perimeter of the net and a cable tensioning system configured to tension the cable around the perimeter of the net and thereby pull the net taut within the frame opening.