Dual-Shoulder Strap System for Inversion Therapy Tables
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Solution Overview
Problem
Current inversion therapy tables lack effective mechanisms to reduce pressure on the ankles and lower legs during inversion and do not provide adequate safety measures to prevent slipping or falling, especially for new users.
Innovation Solution
A dual-shoulder strap system with adjustable length markers and a releasable buckle, which supports the user's shoulder area to prevent sliding or falling, and includes elastic bands for a steady inversion, reducing pressure on the ankles and providing enhanced safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single cross body strap is used to support the user, then the device complexity is reduced, but the user safety and weight distribution are compromised
Solution Approach 1:
The single strap system is divided into multiple separate straps (shoulder straps, cross body straps, ankle straps) that can be independently adjusted and positioned. This segmentation allows each strap to perform a specific function - shoulder straps for weight support and safety, cross body straps for additional security, and ankle straps for positioning - thereby improving overall reliability and safety while maintaining manageable complexity through modular design
2Device complexity
If the strap mounting point is located at the side of the table rather than above the shoulder, then the device complexity is reduced, but the user safety is compromised
Solution Approach 1:
The mounting points are repositioned from a single-side configuration to a multi-dimensional arrangement with attachment points above the shoulder area and at the headrest. This spatial reconfiguration creates multiple geometric paths for the straps, allowing the shoulder straps to effectively support body weight when inverted and providing redundant safety paths that prevent user detachment even if one path is compromised
3Ease of operation
If the strap length is made adjustable without markings, then the ease of operation is improved, but the measurement precision is worsened
Solution Approach 1:
Visual markings are incorporated into the adjustable strap system through colored indicators or printed measurements along the strap length. These color-coded or numbered markers allow users to easily identify and reproduce specific strap lengths, providing precise measurement reference while maintaining the simplicity of manual adjustment. The markings enable users to select consistent lengths for repeated use without requiring complex measurement tools
4Device complexity
If no elastic section is included in the strap, then the device complexity is reduced, but the user comfort and safety are worsened
Solution Approach 1:
An elastic section is integrated into the strap system at strategic locations where controlled deformation can absorb shock and reduce stress on the user's body. The elastic portion allows dynamic adjustment of strap tension during inversion, accommodating shifts in body position and reducing sudden forces on the ankles and shoulders. This parameter change from rigid to flexible-strapped configuration mitigates harmful shock forces while maintaining overall system simplicity
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 dual-shoulder strap system enhances user comfort and safety by distributing body weight more evenly, reducing pressure on the ankles and lower legs, while allowing for secure use of the inversion table, even during shifts or falls.
Implementation Method 1
The strap also includes an elastic band to provide the user with a steady inversion as the user's weight shifts as well as reduce shock from the strap if the user slips or falls on the table.
Data Source
AI summary
A strap for a table having a backrest with a first end and a second portion. The strap has a first end and a second end, wherein the first end of the strap is connected to the first end of the table backrest and the second end of the strap is connected to the second portion of the table backrest. The strap provides a safety measure in the event the user shifts or slips when using the table. When used on an inversion therapy table, the strap may also enable the user to relieve pressure applied to the ankles and lower legs during inversion therapy. The strap may further include a length adjuster to fit the size of each individual user as well as visual length markers to indicate the adjustment settings for the strap.