Dual-Magnet Grip Strap for Heavyweight Tool Attachment
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Solution Overview
Problem
Existing magnetic fastening systems for personal carrying devices are inadequate for heavyweight items due to weak magnet attraction and strap slippage, particularly in contexts requiring stealth or stability.
Innovation Solution
A dual magnet system with adhesive fabric, clip, or friction enhancement on the strap to prevent slippage, combined with a larger footprint on the body, ensuring secure attachment of heavier items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single magnet to metal attraction system is used, then the attachment is silent and quick, but the holding force is too weak to secure heavyweight items
Solution Approach 1:
The single magnet-to-metal attraction is segmented into a dual-magnet system where two separate magnets work together to hold the item. Each magnet is positioned on opposite sides of the strap, and their combined magnetic force provides sufficient holding strength for heavyweight items while maintaining the silent and quick attachment characteristic.
Solution Approach 2:
Two separate magnets are merged into a single functional unit on the strap system. The magnets are positioned to work together synergistically, combining their individual magnetic forces to achieve the necessary holding strength for heavyweight items while preserving the ease of operation.
2Reliability
If a magnetic fastening system is used, then the attachment is secure for light items, but the strap slides down the arm when weighted with heavy items
Solution Approach 1:
The strap system is segmented into multiple functional zones: the magnetic attachment zone for securing items, and the friction enhancement zone for preventing slippage. The friction enhancement elements are positioned on the portion of the strap that contacts the arm, separating this function from the magnetic attachment function to optimize both performance aspects.
Solution Approach 2:
Different portions of the strap are assigned different properties: the area contacting the arm has friction enhancement elements (such as rubber or silicone coatings) to prevent slippage, while the area with magnets provides secure attachment. This local differentiation of properties allows the strap to simultaneously prevent sliding and securely hold items.
3Reliability
If the strap footprint is increased to prevent slippage, then the grip on the body improves, but the device complexity increases
Solution Approach 1:
The friction enhancement elements are implemented as thin film coatings or flexible inserts that can be applied to the strap surface. These thin film elements provide the necessary grip without requiring a completely redesigned strap structure, thus minimizing the increase in device complexity while achieving improved reliability.
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 system maintains the position of attached items securely, enhancing functionality and reliability across various activities and scenarios.
Implementation Method 1
The improvement aims to solve the problems associated with weakness of one magnet, slippage problem, and other problems, by introducing dual magnets and an adhesive fabric, clip, pin to fabric, or friction enhancement to the back of the strap
Implementation Method 2
introducing an adhesive fabric, clip, pin to fabric, or friction enhancement to the back of the strap to resist the straps tendency to slide off of a body part of the wearer during use
Data Source
AI summary
Disclosed is a non-slip dual magnet band system for hands-free carrying of personal items. The system includes two bands, a body-worn band and an item worn band. The body-worn band includes an adhesive fabric, clip, pin to fabric, or friction enhancement to the back of the strap. The body worn band may also include a relatively large footprint on the applicable body part of the wearer.