Magnetic Quick-Release Closure With Latch for Secure Single-Handed Release
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Solution Overview
Problem
Conventional closure systems for apparel and footwear face challenges in providing secure retention under dynamic loading conditions while enabling intuitive, single-handed release, especially during athletic activities, due to operational complexity, wear-related degradation, and insufficient retention force.
Innovation Solution
A magnetic quick-release closure system combining magnet pairs for alignment and mechanical retention features, with a spring-biased latch and translational release mechanism, allowing secure locking and rapid disengagement with minimal dexterity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If magnetic closure systems use magnets of sufficient strength to resist dynamic loads, then retention force is improved, but the closure becomes difficult to disengage
Solution Approach 1:
The closure system is divided into two functional components: magnetic elements for retention and a mechanical release mechanism for disengagement. The magnetic closure panel includes a release tab with a cam mechanism that mechanically disengages the closure by pivoting against the magnetic attraction, allowing strong magnets to be used without making disengagement difficult.
Solution Approach 2:
A mechanical cam mechanism acts as an intermediary between the user's manual input and the magnetic retention force. The cam lever provides mechanical advantage to overcome the magnetic attraction during release, enabling easy disengagement even when strong magnets are used for secure retention during athletic activities.
2Reliability
If traditional mechanical closures provide secure retention, then reliability is improved, but operational complexity and manual dexterity requirements increase
Solution Approach 1:
Complex multi-step mechanical closure mechanisms are replaced with a simplified magnetic attraction system combined with a single-motion release tab. The magnetic elements provide reliable retention automatically upon proximity, and the release tab with cam mechanism enables single-handed operation with minimal dexterity requirements.
Solution Approach 2:
The magnetic closure system provides automatic alignment and engagement when the closure panel approaches the receiving surface, eliminating the need for precise manual positioning required by traditional mechanical closures. The magnetic force self-aligns the components, reducing operational complexity.
3Reliability
If conventional closures require significant manual dexterity for engagement, then retention security is improved, but ease of operation deteriorates
Solution Approach 1:
Manual dexterity requirements for engagement are eliminated by replacing complex mechanical manipulation with magnetic attraction. The magnetic elements automatically draw the closure panel to the receiving surface and maintain secure retention, while the release tab provides simple single-handed operation for disengagement.
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 provides secure retention and intuitive, single-handed operation, resisting inadvertent opening during dynamic activities, with customizable retention forces and materials for various applications.
Implementation Method 1
a plurality of magnet pairs with first magnets located in the closure panel and second magnets located in the receiving surface, the magnet pairs being configured to draw the closure panel toward the receiving surface
Data Source
AI summary
A magnetic quick-release closure system for apparel and footwear applications combines magnetic attraction with mechanical retention to provide secure closure with intuitive, single-handed release capability. The system includes a closure panel with first and second edges, and a receiving surface with complementary features. The first edge nests within an upstanding convex ledge on the receiving surface, creating a pivot point. Multiple magnet pairs draw the panel toward the receiving surface and assist alignment. A spring-biased retention latch engages the second edge of the closure panel when closed, providing mechanical security during athletic activities. A pull tab enables a translational pulling motion of the closure panel, aligning a notched portion on its second edge with the latch for quick release. The system may also incorporate magnetic repulsion assistance for opening and an over-center locking feature for enhanced security under tension.