Magnetic Closure for Bags with Nested Enclosure
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Solution Overview
Problem
Magnetic closures for bags and rucksacks often require a large number of components, making them thick and prone to rotational issues, and are not cost-effective for thin designs.
Innovation Solution
A magnetic closure design with a reduced number of components, featuring a male element with a cavity for a magnet or ferromagnetic element that fits within a female element, using elastic retention rings for secure attachment without additional fixing elements, and incorporating design features to prevent rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If traditional magnetic closure components are used, then the closure is structurally sound, but the thickness increases and the design becomes complex
Solution Approach 1:
The patent combines multiple traditional magnetic closure components into a single integrated enclosure structure. The enclosure houses both the magnet and the ferromagnetic element within one unified component, eliminating the need for separate housings and reducing the overall number of parts while maintaining structural integrity and magnetic functionality.
Solution Approach 2:
The patent implements nesting by placing the magnet and ferromagnetic element inside the enclosure cavity. This nested arrangement allows the magnetic components to be contained within the enclosure structure, reducing the overall thickness of the closure while keeping all necessary components protected and functional.
2Ease of manufacture
If traditional magnetic closure components are used, then the closure is structurally sound, but the manufacturing cost increases
Solution Approach 1:
By merging multiple components into a single enclosure, the patent reduces manufacturing steps, assembly operations, and inventory management requirements. This consolidation directly lowers production costs while simplifying the overall device structure and making the closure more economical to manufacture.
3Ease of operation
If the male element is allowed to rotate freely in the female element, then the coupling is flexible, but the rotational stability decreases
Solution Approach 1:
The patent introduces asymmetric features such as a protrusion on the male element that engages with a corresponding recess in the female element. This asymmetric design allows the closure to open easily in one direction while preventing unwanted rotation, providing operational flexibility while ensuring rotational stability when closed.
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 solution achieves a thin, reliable, and cost-effective magnetic closure with reduced thickness and prevents rotational issues, utilizing a minimal component count for secure flap coupling.
Implementation Method 1
with at least one magnet arranged at the male element or at the female element and a ferromagnetic element at the other one of said male or female elements
Data Source
AI summary
A magnetic closure, particularly for bags, rucksacks and the like, comprising a male element adapted to accommodate a magnet or ferromagnetic element, and a female element; the male element can be associated with a first flap of a bag, rucksack or the like, and the female element is associable with a second flap of the bag, rucksack or the like; the male element comprises an enclosure with a cavity for accommodating the magnet or ferromagnetic element, the enclosure being adapted to mate in a cavity of the female element.