Threshold Bar with Folded Adhesive Strips for Convex Surfaces
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Solution Overview
Problem
Existing threshold bars face challenges in reliable fixation, especially for convex or variable height applications, as traditional adhesive solutions fail to adhere properly and generate extra thickness, while nail-based systems require precise hole alignment and can be cumbersome.
Innovation Solution
A transition element featuring elongated profiles with longitudinally folded adhesive strips, providing a hybrid solution that includes both adhesive capabilities and a guide rail, allowing for easy installation and level adjustment without additional thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional adhesive solutions are used on convex threshold bars, then the installation process is simplified, but the adhesive fails to adhere properly and generates extra thickness
Solution Approach 1:
The adhesive system is segmented into multiple strips applied at specific locations (near the longitudinal edges) rather than a single continuous layer. This segmentation allows the adhesive to conform to the convex shape better and maintains reliability without generating extra thickness that would affect the convex profile's appearance and function.
Solution Approach 2:
The adhesive strips are applied in a manner that accounts for the third dimension (height/convexity) of the threshold bar. By positioning strips near the edges and allowing them to extend slightly beyond the bar's width, the adhesive system adapts to the convex geometry, ensuring proper adhesion without compromising the bar's dimensional integrity.
2Reliability
If nail-based systems are used for fixation, then reliable fixation is achieved, but precise hole alignment is required and installation becomes cumbersome
Solution Approach 1:
The mechanical nail-based fixation system is replaced with an adhesive-based system. This substitution eliminates the need for precise hole alignment and manual drilling, while still achieving reliable fixation through properly positioned adhesive strips. The adhesive system is applied in a way that maintains fixation strength without the complexity of mechanical fastening.
3Ease of manufacture
If adhesive strips are applied on the lower surface of the profile, then gluing is enabled, but the adhesive may not adhere properly on convex surfaces
Solution Approach 1:
Instead of applying adhesive uniformly across the entire lower surface, the adhesive strips are positioned specifically near the longitudinal edges. This local quality approach ensures that adhesive is applied where it is most effective for both flat and convex surfaces, maximizing adhesion reliability while maintaining ease of application.
Solution Approach 2:
The adhesive strips are pre-positioned on the lower surface of the profile during manufacturing, with their adhesive surfaces facing outward. This preliminary action ensures that the adhesive is ready for immediate application to the floor covering, eliminating the need for on-site adhesive application and ensuring proper orientation even on convex surfaces.
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 simple and reliable gluing of threshold bars with variable heights, combining the benefits of adhesive fixation and guide rail functionality, ensuring secure and aesthetically pleasing installation.
Implementation Method 1
comprising at its lower surface two first longitudinally-extending adhesive strips, each first strip being adhesive on its surface opposite to the profile and being obtained by longitudinal folding of a sheet having a second strip glued against the profile
Data Source
AI summary
The invention relates to a transition element (5) formed of an elongated profile, having at its lower surface two first longitudinally-extending adhesive strips, each first strip being adhesive on its surface opposite to the profile, wherein each first strip is obtained by longitudinal folding of a sheet having a second strip glued against the profile.