Peelable Member Tab Design for Adhesive Affixation
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Solution Overview
Problem
Users often misposition devices when peeling off release paper from adhesive surfaces, leading to reduced adhesive strength and difficulty in affixing objects, especially under clothing, due to the need for precise placement before peeling.
Innovation Solution
An attached member with a strip-shaped peelable member and a plate-shaped tab, where the tab is thicker than twice the minimum bending radius of the peelable member, allowing for easy peeling by pinching and pulling the tab laterally while pressing down, ensuring reliable adhesion without deforming the peelable member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If release paper is peeled off before affixation, then the object can be stuck on the target site, but the user may misposition the device and reduce adhesive strength
Solution Approach 1:
The release paper is folded back to cover the adhesive surface before the object is affixed. This preliminary action ensures that the adhesive surface remains protected and precisely positioned, eliminating mispositioning while maintaining ease of operation through the folded design
Solution Approach 2:
The release paper is divided into multiple sections with the adhesive surface exposed at one end and folded back at the other. This segmentation allows the user to peel only the necessary portion while maintaining precise alignment, resolving the contradiction between ease of operation and adhesive strength
2Force
If the peelable member is made thin for easy peeling, then peel force is reduced, but the peelable member may deform during peeling
Solution Approach 1:
The peelable member is designed as a thin film with controlled flexibility. By optimizing the film thickness and material properties, the design achieves easy peeling with low force while preventing deformation during the peeling process, resolving the contradiction between peel force and deformation resistance
3Stability of the object's composition
If the tab is made thick for structural stability, then the tab maintains its shape, but the minimum bending radius increases
Solution Approach 1:
The tab is designed with non-uniform thickness distribution, being thicker at certain locations for shape stability and thinner at others to reduce the minimum bending radius. This local quality variation allows the tab to maintain its structural integrity while enabling easy bending and peeling, resolving the contradiction between shape stability and bending radius
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 reliable and easy affixation of objects to target sites with reduced peel force, preventing deformation and residue, and facilitating precise placement even under clothing.
Implementation Method 1
The thickness of the tab is equal to or greater than twice the minimum bending radius at which the peelable member is elastically deformable
Data Source
AI summary
An attached member includes: a strip-shaped peelable member being in film form; and a tab being in plate form. An adhesive surface of a deep body thermometer and the tab are attached respectively to regions being part of first and second main surfaces of the peelable member and corresponding to about halves of the peelable member on first and second end sides. With the peelable member being folded substantially along the midsection between first and second ends, the order of layers, from closest to the adhesive surface, is the peelable member, the tab, a double-sided tape, and the peelable member. The thickness of the tab is equal to or greater than twice the minimum bending radius at which the peelable member is elastically deformable. The tab extends in a folding direction of the peelable member and beyond an outer edge of the peelable member.