Profile Part Fastening With Recessed Clustered Hook-and-Loop Inserts
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Solution Overview
Problem
Existing fastening systems for profile parts require large amounts of fastener material, leading to high costs and are susceptible to contamination, which reduces adhesion and complicates replacement or disposal.
Innovation Solution
A fastening system with insert parts designed for recesses in profile parts, featuring hooking possibilities and adhesive fastener parts distributed in a cluster-like manner, allowing for secure attachment with reduced material use and easy separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fastener parts are firmly connected to profile parts in the form of strips covering a very large area, then strong connection between profile parts is achieved, but large quantities of fastener material are required which increases cost
Solution Approach 1:
The patent divides the continuous strip fastener into discrete point-like or spot-like fastening components distributed in a cluster-like manner over the profile part. Each fastening component consists of insert parts with adhesive fastener parts that are locally concentrated at specific fixing positions rather than spread continuously across the surface. This segmentation reduces the total amount of fastener material required while maintaining connection strength through the distributed cluster arrangement.
Solution Approach 2:
The patent applies fastener material locally at predeterminable fixing positions rather than uniformly across the entire surface. The adhesive fastener parts are concentrated in clusters at specific points where they are most needed for connection, leaving other areas free of fastener material. This local quality approach optimizes material usage by placing fasteners only where structural connection is required.
2Strength
If fastener parts are firmly connected to profile parts covering a very large area, then strong connection is achieved, but contaminants can enter the fastener material which reduces adhesion
Solution Approach 1:
The patent places the adhesive fastener parts inside recesses of the profile part, creating a nested structure where the fastener components are housed within protective cavities. The insert parts are received in the recesses with their adhesive fastener parts facing upward, shielded from direct environmental exposure. This nesting protects the adhesive surfaces from contaminants while maintaining their bonding capability.
Solution Approach 2:
The adhesive fastener parts are pre-applied and cured within the recesses before the profile parts are assembled together. This preliminary action allows the adhesive to set in a protected environment within the recess, preventing contamination before the bonding surfaces are exposed and brought into contact with each other during assembly.
3Reliability
If strip-like large-scale laying of sealing material is used, then comprehensive coverage is achieved, but costs increase due to reduced material efficiency
Solution Approach 1:
The patent replaces continuous strip-like sealing material with discrete point-like or spot-like fastening components distributed in clusters. Each fastening component provides localized sealing and connection at specific fixing positions, eliminating the need for continuous material coverage. This segmentation maintains connection reliability through the distributed cluster arrangement while dramatically reducing the quantity of sealing material required.
4Strength
If profile parts are securely attached to one another with large amounts of fastener material, then strong connection is achieved, but replacement or separation requires high actuation forces
Solution Approach 1:
The patent creates a dynamic fastening system where the insert parts can be easily inserted into the recesses but require significant force to remove. The channel-like openings with limiting strips provide one-way mechanical advantage, allowing easy insertion while preventing easy removal. This dynamic characteristic enables secure attachment during use while maintaining ease of operation for controlled separation when needed.
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
Achieves strong, cost-effective connections between profile parts with minimal material usage, resistant to contamination, and enables easy detachment for replacement or cleaning.
Implementation Method 1
at least two fastening components, each having adhesive fastener parts which can be brought into engagement with one another in a releasable manner to form an adhesive fastener
Data Source
Figure 1~2
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AI summary
The invention relates to a fastening system for profile parts, consisting of at least two fastening components, which each have hook-and-loop closure parts (16), which are releasably engageable with one another, forming a hook-and-loop closure, wherein the one fastening component (10) can be paired with the one profile part and the other fastening component can be paired with the other profile part, characterized in that the one fastening component (10), which is designed as an insertion part (12) for a recess in the associated profile part, has a closure zone (56) which, as seen looking in the direction of insertion of the fastening component (10), has two boundary strips (22, 24) along the edges, which allow a hooking-under action when received in channel-like openings in the recess, which leave the closure zone (56) between them free for fixing the hook-and-loop closure parts of the other fastening component to the hook-and-loop closure parts (16) of the one fastening component (10).