Plastic Fastening System for Insulating Components
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Solution Overview
Problem
Existing fastening systems for insulating materials on load-bearing surfaces are costly and complex, particularly due to the need for overmolding plastic components, which increases product expense and complexity.
Innovation Solution
A fastening system comprising a plastic insulation material holder, a dowel, and a plastic fastening element with a threaded shaft and polygonal tool holder, where all components are made of plastic, including fiber-reinforced materials, allowing for both screw-in and impact installations without creating thermal or cold bridges and avoiding corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If overmolding is used to integrate the plug and screw, then the fastening system avoids separate components, but the manufacturing complexity and cost increase significantly
Solution Approach 1:
The patent combines the plug and screw into a single integrated fastening element with a unified body that includes both the anchoring portion and the driving portion, eliminating the need for overmolding while reducing component count through intelligent design
2Device complexity
If overmolding is used to create the integrated plug-screw component, then component integration is achieved, but production cost increases
Solution Approach 1:
The patent employs a simple, inexpensive fastening element made from cost-effective materials that can be manufactured using conventional processes, replacing the expensive overmolded solution while maintaining functional integration
3Strength
If metal fastening elements are used, then strength and anchoring capability are improved, but corrosion and thermal bridge formation occur
Solution Approach 1:
The patent utilizes composite materials, specifically plastic fastening elements with fiber reinforcement (such as glass fibers), to achieve metal-like strength and anchoring capability while eliminating corrosion and thermal bridge issues inherent in metal components
4Object-affected harmful factors
If plastic fastening elements are used, then corrosion and thermal bridges are avoided, but strength and anchoring capability may be reduced
Solution Approach 1:
The patent employs fiber-reinforced plastic composite materials that enhance the mechanical strength and anchoring capability of plastic fastening elements, allowing them to achieve performance levels comparable to metal while maintaining corrosion resistance and thermal insulation properties
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 system is cost-effective, lightweight, and suitable for various installations, preventing corrosion and thermal bridges while maintaining structural integrity, with components designed for versatility in assembly methods.
Implementation Method 1
a dowel and a fastening element which can be driven into the dowel by expanding the dowel
Data Source
Figure 1a~1d
Figure 2a~2d
Figure 3a~3e
AI summary
The invention relates to a fastening system (1) for components made of insulating material on a load-bearing substrate, comprising an insulation holder (2) with a retaining plate (3) and a retaining plate shaft (4), a dowel (6) and a fastening element (5) which can be driven into the dowel (6) by expanding the dowel (6), wherein the retaining plate (3) and the retaining plate shaft (4) have a central passage (8) and wherein the fastening element (5) has a threaded shaft section (9) at an end leading in the assembly direction and a head (1) having a multi-sided tool receptacle (11) at an end lagging in the assembly direction and wherein the insulation holder (2) and the dowel (6) are made of plastic, characterized in that the fastening element (5) is also made of plastic.The invention further relates to a method for attaching components made of insulating material using a fastening system according to the invention (Fig. 1).