Aerobic Adhesive Fastening with Height-Profiled Layer
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Solution Overview
Problem
Existing fastening methods require mixing of aerobic adhesive with hydrophilic substances, which complicates the handling process and necessitates external moisture contact for curing, making them less user-friendly and efficient.
Innovation Solution
A fastening system comprising an aerobic adhesive and a flowable substance, where the flowable substance is applied as a surface layer over a height-profiled layer of adhesive, allowing automatic mixing and curing without external moisture contact when an object is pressed onto the substrate, eliminating the need for separate mixing and simplifying the handling process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If aerobic adhesive is mixed with hydrophilic substance before application, then the mixture can cure internally without external moisture contact, but the handling process becomes complicated and requires separate mixing step
Solution Approach 1:
The adhesive system is divided into two separate components: aerobic adhesive in a first receptacle and hydrophilic substance in a second receptacle. This segmentation allows each component to be stored and applied separately, eliminating the need for pre-mixing while ensuring proper curing when the components contact each other at the application site.
Solution Approach 2:
The hydrophilic substance is extracted from the adhesive formulation and stored separately in a second receptacle. This extraction eliminates the complexity of mixing while preserving the curing mechanism, as the hydrophilic substance is applied separately and mixes with the aerobic adhesive only at the application site.
2Ease of operation
If aerobic adhesive is applied as flat layer, then application is simple, but mixing with flowable substance requires separate work process
Solution Approach 1:
The aerobic adhesive is applied first as a height-profiled layer using a notched trowel, creating a prepared substrate that facilitates automatic mixing. This preliminary action of creating the height-profiled layer enables the subsequent automatic mixing when the object is pressed onto the substrate, eliminating the need for separate mixing work.
Solution Approach 2:
The adhesive layer is transformed from a flat two-dimensional layer to a three-dimensional height-profiled layer with peaks and valleys. This dimensional change creates natural mixing zones where the flowable substance can be automatically incorporated when the object is pressed onto the substrate, eliminating separate mixing steps.
3Extent of automation
If height-profiled layer of adhesive is used, then automatic mixing occurs when object is pressed, but the layer structure becomes more complex
Solution Approach 1:
The height-profiled layer structure enables the system to perform mixing automatically through the mechanical action of pressing the object onto the substrate. The peaks and valleys of the adhesive layer self-mix with the flowable substance during the pressing operation, eliminating the need for external mixing devices or processes.
4Ease of operation
If separate receptacles with separate removal means are used, then mixing is eliminated, but the device structure becomes more complex
Solution Approach 1:
The first removal means (notched trowel) and second removal means (spreaders) are designed to work together in sequence on the same substrate. The notched trowel creates the height-profiled adhesive layer, and the spreaders apply the flowable substance over it. This merging of removal means enables the elimination of separate mixing while maintaining operational simplicity.
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 quick and complete hardening of the fastening means within the substrate, even between diffusion-tight surfaces, simplifying the connection process and enhancing user convenience by eliminating the need for external mixing and moisture exposure.
Implementation Method 1
an aerobic adhesive and a flowable substance... the aerobic adhesive contained in the mixture can also cure from the inside
Implementation Method 2
the moisture penetrates the entire volume of the mixture, which allows it to harden completely
Data Source
Figure 1~6
AI summary
The fastening means (2) according to the invention serves for fixing an object on a base (11). The fastening means (2) consists of an aerobic adhesive (3) and a free-flowing substance. The aerobic adhesive (3) is stored in a first receptacle with an associated first withdrawal means. The first withdrawal means is formed in such a way that it generates a layer of aerobic adhesive (3) having a height profile on the base (11). The second withdrawal means is formed in such a way that a surface layer formed by the free-flowing substance is formed on the layer of aerobic adhesive (3) having a height profile. By pressing on the object, volumetric incorporations of the free-flowing substance in the aerobic adhesive (3) are formed on the thus formed layer structure.