Insulation Fixing Holder Assembly to Block Thermal Bridges
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Solution Overview
Problem
Existing holders for fixing insulation layers to building surfaces face issues with thermal bridges, water penetration, and require pre-drilling, leading to increased costs and complexity in assembly.
Innovation Solution
A holder design featuring a plastic part composed of two half-parts with grooves that connect to form a cavity around the metal fastening element, allowing for easy assembly without gaps and covering the fastening element head, eliminating the need for pre-drilling and reducing deformation of the insulation layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a monolithic plastic part with metal fastener is used, then the holder provides structural integrity and fixing capability, but it creates thermal bridges and allows water penetration through gaps
Solution Approach 1:
The plastic part is divided into two separate half-shells that are assembled around the metal fastener. This segmentation allows the plastic material to completely surround the metal fastener, eliminating gaps and preventing thermal bridges and water penetration while maintaining the structural integrity needed for fixing the insulation layer.
Solution Approach 2:
The metal fastener is nested within the plastic half-shells, with the plastic material completely enclosing the metal component. This nesting arrangement ensures that the thermally insulating plastic material surrounds the conductive metal fastener, preventing thermal bridges from forming between the fastener and the external environment.
2Strength
If a metal fastener is used for securing the holder, then strong fixing is achieved, but pre-drilling is required and assembly becomes more complex
Solution Approach 1:
The metal fastener is pre-assembled with the two plastic half-shells before installation. The half-shells are designed to snap together and securely hold the fastener in place, creating a pre-assembled unit that requires no pre-drilling or complex assembly steps during installation. The fastener protrudes from the assembled half-shells, ready for immediate insertion into the substrate.
3Ease of operation
If the plastic part is pushed through the insulation layer during assembly, then the holder is installed, but the insulation layer deforms and compacts
Solution Approach 1:
The plastic part is segmented into two half-shells that are assembled around the fastener and then jointly inserted through the insulation layer. This segmented design allows for a more controlled installation process where the half-shells can be positioned and secured without excessive force, reducing deformation and compaction of the insulation layer while maintaining installation ease.
Data Source
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AI summary
The invention relates to a holder (3) for fixing an insulating layer (2) to a fixed building component (1), wherein the holder (3) comprises a plastic part (4) and a metallic fastening element (5), the plastic part (3) comprising a sleeve (6) and a retaining plate (7), and the fastening element (5) being a nail or a screw, and the fastening element (5) extending into the fixed building component (1) from a central cavity (8) of the plastic part (4) when assembled. The plastic part (4) consists of two connectable half-parts (11), each of which has a groove, and the grooves of the two half-parts (11) together form the central cavity (8) after the two half-parts (11) are joined, which encompasses the fastening element (5).