Methods and apparatus for non-destructive adhesive devices
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Solution Overview
Problem
Existing non-destructive adhesive devices (NDADs) face challenges such as catapulting of attached objects during removal, which poses a risk of injury and requires complex procedures for attachment and detachment.
Innovation Solution
The development of a new type of NDAD with a hybrid carrier and inelastic regions that allows for a more controlled debonding process, featuring a nonlinear structure and peelable tabs for enhanced safety and simplicity, utilizing a hybrid carrier that stretches up to five times its bonded length without tearing, and providing visual feedback during debonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional adhesive devices are used for attachment, then strong adhesive bond is achieved, but catapulting of attached objects occurs during removal causing injury risk
Solution Approach 1:
The adhesive device is segmented into multiple functional regions: a first adhesive region for initial bonding, a second adhesive region for controlled debonding, and a tab region for user manipulation. This segmentation allows the adhesive to maintain strong bond strength while enabling controlled removal that prevents catapulting by distributing the debonding force across different regions.
Solution Approach 2:
Different regions of the adhesive device are assigned different local properties: the first adhesive region has high adhesion strength for bonding, the second adhesive region has controlled debonding characteristics, and the tab region has low adhesion for easy release. This local differentiation allows the device to simultaneously achieve strong attachment and safe removal without catapulting.
2Object-affected harmful factors
If complex procedures are implemented to prevent catapulting, then safety is improved, but device complexity increases
Solution Approach 1:
The adhesive device is designed to automatically control its own debonding process through the sequential activation of different adhesive regions. When the user pulls the tab, the device inherently progresses through controlled debonding stages without requiring user knowledge of complex procedures, making the safety feature self-executing and the operation simple.
Solution Approach 2:
The adhesive device is pre-configured with multiple adhesive regions having different debonding characteristics before use. The first adhesive region is designed to fail first, followed by the second adhesive region, creating a built-in sequential debonding mechanism that prevents catapulting without requiring the user to perform complex actions.
3Area of stationary object
If adhesive dimensions are increased to accommodate larger objects, then attachment capacity is improved, but control over debonding process becomes more difficult
Solution Approach 1:
Even when the total adhesive area is large to accommodate bigger objects, the adhesive is segmented into multiple regions that debond sequentially. This segmentation allows controlled removal by breaking down the large adhesive bond into manageable stages, maintaining ease of operation despite increased attachment capacity.
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 new NDAD design reduces the risk of injury and simplifies the attachment and detachment processes by ensuring a controlled and safe removal of objects, while maintaining a strong adhesive bond, and can accommodate larger objects and surfaces with increased adhesive dimensions.
Implementation Method 1
a hybrid carrier that stretches up to five times its bonded length without tearing
Data Source
AI summary
A Non-Destructive Adhesive Device (NDAD) comprising a first end-user graspable tab, coupled to a first area of elastomeric material, coupled to an inelastic area, coupled to a second area of elastomeric material, coupled to a second end-user graspable tab, wherein the first and second areas of elastomeric material are adhesive on both sides, but the first side of the inelastic area is not adhesive. Wherein the second side of the NDAD is attached to an object, and the first side is attached to a wall. Wherein the first object is a mounting plate, for attaching various types of second objects to the wall. Wherein the first area of elastomeric material, the inelastic area, and the second area of elastomeric material are configured to place as much adhesive area as possible, on both sides of the NDAD, as close as possible to the topmost edge of the mounting plate.