Magnetic Closure Device for Tensile Load Absorption
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Solution Overview
Problem
Existing closure devices for textile and other applications face challenges in reliably absorbing tensile loads while being easy to close and open, and require cost-effective production with variable usability.
Innovation Solution
A closure device featuring flexible closure parts with magnet arrangements having offset magnetic poles, allowing for easy attachment and secure engagement through magnetic interaction, with structural elements that can adapt to different positions and orientations for enhanced usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If structural elements are arranged to interlock and prevent movement under load, then tensile load absorption is improved, but the device becomes difficult to open and close
Solution Approach 1:
The patent replaces the traditional mechanical interlocking system with a magnetic field-based system. Magnetic poles are arranged on the surfaces of the locking parts to create magnetic attraction forces that hold the parts together under tensile load, eliminating the need for complex mechanical interlocking structures. This substitution allows the device to maintain strong holding power while enabling easy opening and closing through simple magnetic engagement and disengagement.
Solution Approach 2:
The patent changes the physical state and properties of the locking mechanism by introducing magnetic fields. By varying the magnetic pole arrangements and strengths, the device can dynamically adjust between strong attraction (when closed) and easy separation (when opening), resolving the contradiction between holding strength and operational ease.
2Reliability
If magnetic poles are arranged to provide strong attraction, then connection security is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the magnetic arrangement into discrete magnetic poles distributed across the surface of the locking parts. This segmentation allows for simplified manufacturing, as individual magnetic elements can be independently positioned and attached, rather than requiring complex integrated magnetic structures. The segmented approach maintains strong overall magnetic attraction while facilitating easier assembly and production.
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 device effectively absorbs tensile loads, is easy to close and open, and maintains a secure connection, while being cost-effective and adaptable for various applications.
Implementation Method 1
The engagement between the structural elements on the surfaces of the locking components is achieved through magnetic interaction. Each locking component is equipped with a magnetic array consisting of multiple poles. When the locking components are closed and aligned, these magnetic arrays attract each other (with opposite poles either fully or partially opposite each other).
Data Source
Figure 1~2
Figure 3A~3D
Figure 4A~4C
AI summary
A closure device (1) for connecting two parts comprises a first closure part (2) which has a first surface (203) with, arranged thereon, an arrangement of first structure elements (22), and a second closure part (3) which has a second surface (303) with, arranged thereon, an arrangement of second structure elements (32), wherein the first closure part (2) and the second closure part (3) are to be fitted together such that the first surface (203) of the first closure part (2) is oriented toward the second surface (303) of the second closure part (3), such that the first structure elements (22) and the second structure elements (32) engage in one another so as to prevent relative movement between the closure parts (2, 3) along a loading direction (B1, B2). In that context, it is provided that the first closure part (2) has a first magnet arrangement (21) with a plurality of magnetic poles (N, S) offset with respect to one another along the first surface (203), and the second closure part (3) has a second magnet arrangement (31) with a plurality of magnetic poles (N, S) offset with respect to one another along the second surface (303). This provides a closure device which is able to take up tensile loads, is easy to close and also easy to reopen.