Magnetic Strap Assembly for Textile Attachment

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Solution Overview

Problem

Existing mechanical fastening solutions fail to provide a secure and damage-free method for attaching objects to textiles and other materials, particularly for organizing items like keys or other small items on clothing or bags.

Innovation Solution

An assembly comprising an elongated strap with two magnetic elements, one at each end, and a fastener attached to one end, allowing the strap to be pinched onto a cloth or material, utilizing rare earth magnets for secure attachment without damaging the material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If traditional mechanical fasteners (screws, clips, adhesives) are used to attach objects to textiles, then attachment strength may be achieved, but the material is damaged or degraded

Engineering Contradiction:

Improveattachment strengthVSAvoidmaterial damage

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent replaces traditional mechanical fastening systems (screws, clips, adhesives) with a magnetic field-based attachment system. Two magnetic elements positioned on opposite sides of the textile generate magnetic forces that securely hold objects without mechanical penetration or chemical bonding, thereby preventing material damage while maintaining strong attachment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The textile material itself serves as an intermediary between the two magnetic elements. The magnetic elements are positioned on opposite sides of the textile, using the material as a mediator to transmit and distribute magnetic forces evenly, achieving secure attachment without direct contact between the fastening mechanism and the object surface.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If magnetic elements are used to attach objects to textiles, then material damage is prevented, but attachment security may be reduced

Engineering Contradiction:

Improvematerial damage preventionVSAvoidattachment security

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The attachment system is segmented into two separate magnetic elements positioned on opposite sides of the textile rather than using a single magnetic element. This segmentation allows the magnetic forces to work together from both sides, distributing the attachment load and enhancing overall security while maintaining non-contact attachment that prevents material damage.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The magnetic field distribution created by the two magnetic elements on opposite sides of the textile produces a curved, distributed force field that evenly encompasses the attached object. This curved field configuration enhances attachment security by distributing forces uniformly across the object-textile interface, preventing localized stress concentrations.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Device complexity

If a single magnetic element is used, then the structure is simple, but attachment versatility is limited

Engineering Contradiction:

Improvestructure simplicityVSAvoidattachment versatility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent transitions from a single-plane magnetic attachment (one magnetic element) to a three-dimensional magnetic field configuration with elements on opposite sides of the textile. This dimensional change enables the system to accommodate objects of various shapes, sizes, and magnetic properties by distributing magnetic forces through the textile thickness, significantly enhancing attachment versatility while maintaining relatively simple device structure.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 improved organization by securely attaching keys or other objects to clothing or bags without causing damage, offering versatility in attachment points and material compatibility.

Implementation Method 1

a first magnetic element proximate the first end of the strap, a second magnetic element proximate the second end of the strap... configured to be attached to a cloth, such as a purse or article of clothing, by pinching the cloth between the first magnetic element and the second magnetic element

Methodology Applied

Scientific EffectMagnetism: Magnetism

Data Source

PatentUS11805863B1Elongated strap with fastener and two magnetic elements

Publication Date: 2023.11.07 DECKER KATHRINA

AI summary

An assembly includes an elongated strap with a length extending between a first end and a second end, a first magnetic element proximate the first end of the strap, a second magnetic element proximate the second end of the strap, and a fastener attached to the first end of the strap. In some examples, at least one of the first and second magnetic elements is a rare earth magnet.