Magnetic Brassiere Back Closure Alignment
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Solution Overview
Problem
Securing the back closure of a brassiere is difficult due to the need for precise alignment and manipulation behind the back, especially with multiple rows of hooks, making it cumbersome and uncomfortable.
Innovation Solution
A magnetic fastener system with cylindrical magnets oriented perpendicular to the strap ends, where male and female elements are slidably engaged to automatically align and lock the strap ends together, allowing easy closure and opening by rough juxtaposition behind the back.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hook-and-eye closures are used on brassiere wings, then secure fastening is achieved, but the complexity of operation increases significantly when closing behind the back
Solution Approach 1:
The patent replaces the traditional mechanical hook-and-eye alignment system with a magnetic field-based alignment system. Magnets embedded in the closure components create magnetic attraction forces that automatically guide and center the male and female closure parts when brought close together, eliminating the need for precise manual alignment behind the back while maintaining secure fastening.
2Adaptability or versatility
If multiple rows of hooks are provided for adjustability, then adaptability improves, but the difficulty of closing the fastener behind the back increases
Solution Approach 1:
The magnetic alignment system simplifies the interaction with multiple hook rows by providing automatic centering force. Instead of requiring the user to manually align each hook with its corresponding eye among multiple rows, the magnetic field automatically centers the closure components, making the presence of multiple adjustment rows manageable and intuitive.
3Reliability
If the closure is positioned behind the back for proper brassiere fit, then garment performance improves, but user comfort and ease of donning deteriorates
Solution Approach 1:
The magnetic alignment mechanism allows the closure to be easily engaged behind the back by creating an automatic self-centering effect. When the user brings the closure components close together behind the back, the magnetic attraction automatically pulls them into proper alignment and secures them, eliminating the awkward arm positioning and manual dexterity requirements of traditional closures.
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 effortless closure of the brassiere back fastener by allowing rough alignment of strap ends, with magnets automatically pulling them into a finder position for secure snapping, simplifying the donning process and reducing discomfort.
Implementation Method 1
Respective male and female magnets on the strap ends are oriented so as to hold the strap ends in a finder position with the faces engaging or closely juxtaposed with each other
Data Source
AI summary
A fastener for securing together two garment strap ends having confronting faces has at least male elements mounted on the face of one of the strap ends and respective female elements mounted on the face of the other strap end, generally complementary to the male element, and, with the faces touching or closely juxtaposed, slidably engageable in a direction parallel to the faces with the male elements to fasten the two strap ends together. Respective male and female magnets on the strap ends are oriented so as to hold the strap ends in a finder position with the faces engaging or closely juxtaposed with each other and the male and female elements spaced in the direction and disengaged from each other so that displacement of the strap ends apart in the direction from the finder position will engage and lock together the male and female elements.