Detachable Support With Segmented Weakness Lines
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Solution Overview
Problem
Current designs for mini-cards, such as SIM cards, face issues with mechanical forces during detachment, leading to potential deformation or irreversible damage, and struggle to create card bodies of larger size while ensuring good retention and minimizing mechanical stresses.
Innovation Solution
A support system with weakened attachment seams and strategically placed lines of weakness allows the support to be separated into portions, preventing total breakage of seams during detachment, enabling the creation of larger card bodies with improved retention and reduced mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the support is separated into portions by breaking weakened attachment seams, then the detachable element can be detached from the support, but high mechanical forces are generated that can cause irreversible deformation or damage to the detachable element
Solution Approach 1:
The support is divided into multiple portions by introducing lines of weakness that split the support into separate segments. Each line of weakness connects to a cut-out zone, allowing the support to be separated into multiple portions that can be detached sequentially, distributing the mechanical stress and avoiding concentration of forces on the detachable element
Solution Approach 2:
Lines of weakness act as intermediary elements between the support and the detachable element. These lines provide a controlled breaking path that mediates the detachment process, allowing the support to separate into portions without directly transmitting high mechanical forces to the detachable element
2Area of moving object
If the detachable element is made larger in size, then more functionality can be integrated, but retention on the support becomes insufficient and mechanical stress increases
Solution Approach 1:
The support is segmented into multiple portions through lines of weakness connecting to cut-out zones. This segmentation allows a larger detachable element to be retained by multiple separate support portions, distributing the retention load and maintaining reliability even as the element size increases
Solution Approach 2:
Different regions of the support are given different properties: areas near cut-out zones have lines of weakness for controlled separation, while other areas maintain full strength for retention. This local differentiation allows the support to provide both strong retention for large elements and controlled detachment where needed
Data Source
AI summary
A support that includes a detachable element which has one border, of which at least a portion is attached to the support, with the border portions attached to the support all being so attached by weakened attachment seams, where the support also includes at least two lines of weakness that allow the support to be separated into at least two portions connected by a weakened attachment seam to the detachable element, with each of the lines of weakness being such that, when the support is bent along this line of weakness until it breaks, none of the weakened attachment seams breaks totally. Also disclosed is a method for the detachment of such a detachable element as well as a method for the manufacture of such a support.