Portable Cable Retraction With Adjustable Exercise Resistance

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Solution Overview

Problem

There is a need for a portable device that enables focused and full-body exercise at variable levels of resistance and energy transfer via movement, particularly for individuals who cannot access gym equipment or require physical therapy exercises with varying resistance levels.

Innovation Solution

A retraction apparatus with an anchor device, housing, retractable cable, and tensioning mechanism that allows for adjustable resistance and movement, equipped with sensors and RFID technology to track exercise parameters, and a wireless transceiver for data transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional gym equipment is used, then exercise resistance and functionality are improved, but portability and accessibility are worsened

Engineering Contradiction:

Improveexercise resistanceVSAvoidportability

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

The exercise system is divided into separate components: a portable retraction device with cable and attachment mechanism that can be independently handled, versus fixed gym equipment. This segmentation allows the resistance mechanism to be portable while maintaining full exercise functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The retraction device is designed as a multi-functional system that can provide various exercise resistance levels through different attachment mechanisms and cable configurations, replacing multiple specialized gym equipment pieces with a single portable unit.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If fixed gym equipment is used, then exercise functionality is improved, but time efficiency and travel accessibility are worsened

Engineering Contradiction:

Improveexercise functionalityVSAvoidtime efficiency

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system transitions from static fixed gym equipment to a dynamic portable retraction device that can be quickly deployed and configured for different exercises, eliminating travel time to gyms while maintaining full exercise functionality.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The device includes self-contained components with an anchor device that can be independently positioned and secured, allowing users to set up exercise stations anywhere without requiring external gym infrastructure or assistance.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If variable resistance is implemented, then exercise effectiveness is improved, but device complexity is worsened

Engineering Contradiction:

Improvevariable resistanceVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Variable resistance is achieved by changing physical parameters of the system - specifically the cable length, attachment point positions, and spring tension settings - rather than adding complex electronic controls or multiple resistance mechanisms, keeping the device relatively simple.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces complex electronic resistance control systems with mechanical solutions including springs, cables, and pulleys that naturally provide variable resistance through their physical properties, simplifying the overall device architecture.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Measurement precision

If sensor and RFID tracking are added, then exercise monitoring is improved, but device complexity and cost are worsened

Engineering Contradiction:

Improveexercise monitoringVSAvoiddevice complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

RFID tags and sensors act as intermediary components that passively track exercise parameters without requiring complex processing systems. The tags are attached to exercise equipment and automatically communicate position and usage data when near readers, simplifying the monitoring architecture.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system incorporates automatic feedback mechanisms where sensors and RFID readers continuously monitor exercise parameters and provide real-time data, eliminating the need for manual tracking and reducing the complexity of exercise monitoring.

Inventive Principle:

Principle #23Feedback

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

Enables time-efficient, portable exercise with variable resistance and energy transfer, providing real-time feedback and data analysis for effective workout monitoring.

Implementation Method 1

The tensioning mechanism can include at least one of a spring, a magnet, an electronic resistance device, a motor, and an elastic cable

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

The tensioning mechanism can include at least one of a spring, a magnet, an electronic resistance device, a motor, and an elastic cable

Methodology Applied

Scientific EffectMagnetism: Magnetism

Data Source

PatentUS12447374B2Retraction device

Publication Date: 2025.10.21 NUVALUX LLC

AI summary

A retraction apparatus includes a housing and a retractable cable extending from the housing. An attachment mechanism is configured to couple to a free end of the retractable cable. A tensioning mechanism is configured to restrict movement of the retractable cable.