Portable Modular Stretching System with Interchangeable Attachments

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Solution Overview

Problem

Traditional stretching devices for contortionists, gymnasts, and dancers are often bulky, costly, and lack controlled progression and alignment, making it difficult to maintain flexibility and prevent injuries, especially when traveling.

Innovation Solution

A portable modular stretching apparatus with interchangeable attachments and a pulley system that allows for customizable, manually controlled tension and alignment, enabling progressive increases in stretching intensity and flexibility, particularly for hip, waist, back, and leg muscles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional stationary stretching machinery is used, then stretching effectiveness and controlled progression are improved, but portability and cost are worsened

Engineering Contradiction:
Improvestretching effectivenessVSAvoidportability
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The stretching system is divided into modular components including a base unit with pulley mechanism, interchangeable attachments for different body parts, and portable carrying case. This segmentation allows the effective stretching mechanism to be maintained while reducing overall size and improving portability for travel.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The base unit with pulley system serves multiple functions through interchangeable attachments that can be configured for different stretching exercises targeting various muscle groups. This multi-functionality maintains comprehensive stretching effectiveness while avoiding the need for multiple separate stationary machines.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If traditional stretching devices are used, then basic stretching is possible, but controlled progression and alignment are worsened

Engineering Contradiction:
Improvebasic stretching capabilityVSAvoidalignment control
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The system incorporates alignment guides and visual indicators that provide feedback to users on proper positioning. The progressive resistance mechanism also provides tactile feedback as users advance through controlled stages of stretching intensity, ensuring proper form and gradual progression.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Alignment rods and guide structures act as intermediaries between the user's body and the stretching force, ensuring proper anatomical alignment. These intermediary elements maintain precise positioning control while allowing easy operation of the stretching mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Weight of moving object

If resistance bands and yoga blocks are used, then portability is improved, but injury risk control and stretching progression are worsened

Engineering Contradiction:
ImproveportabilityVSAvoidinjury risk control
Core Design Contradiction:
Weight of moving objectVSReliability

Solution Approach 1:

The pulley-based resistance system dynamically adjusts tension based on the user's position and effort, providing controlled progression that adapts to individual capability. This dynamic resistance mechanism replaces static bands with a system that automatically modulates force to prevent injury while maintaining portability.

Inventive Principle:
Principle #15Dynamics

4Device complexity

If traditional stretching methods are used, then simplicity is maintained, but ability to promote progressive increases in intensity and tension is worsened

Engineering Contradiction:
ImprovesimplicityVSAvoidprogressive intensity increase
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system employs periodic cranking motion to gradually increase tension and resistance over time. This periodic action allows users to progress through controlled cycles of stretching, systematically increasing intensity while maintaining a relatively simple mechanical interface that doesn't overwhelm the user.

Inventive Principle:
Principle #19Periodic action

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 apparatus provides a lightweight, customizable solution for controlled and progressive stretching, reducing the risk of injury and improving flexibility, allowing users to maintain limberness and perform complex movements safely, even when on tour.

Implementation Method 1

a pully attached at one end of a central rod

Methodology Applied
Scientific EffectPulley: Pulley

Implementation Method 2

Cable is threaded through the central rod or along the legs. A person pulls on the cable to create tension for progressively difficult and challenging stretching

Methodology Applied
Scientific EffectTension: Tension

Data Source

PatentUS11628116B2Portable modular stretching system
Publication Date: 2023.04.18 SOSA RICARDO
  • US11628116B2 patent drawing
  • US11628116B2 patent drawing
  • US11628116B2 patent drawing

AI summary

A portable modular stretching apparatus has a basic structure of a base, central rod, pulley, cable system, and two legs jointed at the central rod and alongside the base. Attachments are then added for customized stretching. Attachments provide for hamstring, hips, quadriceps, knees, gastrocnemius, ankle, and metatarsal stretching, limberness, and extension, and hyperflexion. A person adds and removes the attachments based on the desired stretch routine, controls the tension, and removes the attachments, and folds the apparatus when complete.