Two-Layer Cable Duct Housing for Smooth Decorative Finishes
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Solution Overview
Problem
Existing cable duct systems face challenges in achieving an attractive appearance due to wrinkles, uneven edges, and gaps when using decorative films, and higher-quality materials like aluminum and stainless steel are expensive and require grounding, limiting design options and cost-effectiveness.
Innovation Solution
A cable duct design comprising two layers, where the first layer is a metal strip for decoration and the second layer is plastic or elastic plastic, with a closure mechanism using a partially elastic hook and abutment to secure the cover, ensuring a smooth and secure fit without protrusions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a decorative film is applied to the cable duct, then the appearance is improved, but wrinkles and uneven edges occur
Solution Approach 1:
The cable duct housing combines a plastic second layer with a metal first layer (decorative coating). This composite structure provides both the structural integrity of plastic and the aesthetic qualities of metal, eliminating the need for separate decorative films that cause wrinkles and uneven edges.
2Shape
If aluminum or stainless steel cable ducts are used, then design options and appearance are improved, but cost increases and grounding is required
Solution Approach 1:
The invention uses a composite structure where a plastic base layer provides structural integrity and electrical insulation (eliminating grounding requirements), while a metal decorative layer provides the desired appearance and design options. This combination achieves the aesthetic benefits of metal ducts without the associated costs and electrical safety requirements.
Solution Approach 2:
The cable duct is divided into two functional layers: a plastic second layer for structural support and electrical insulation, and a metal first layer for decoration. This segmentation allows each layer to perform its specific function optimally while avoiding the drawbacks of using solid metal throughout.
3Reliability
If the cover is secured with protruding fastening elements, then the closure is secure, but the outer surface is no longer smooth
Solution Approach 1:
The hook and abutment fastening elements are nested within the wall thickness of the cable duct housing. The hook is formed in the cover and the abutment in the housing body, both positioned inside the wall structure rather than protruding outward. This allows the outer surfaces to remain continuously flat and smooth while maintaining secure closure through the internal interlocking mechanism.
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
Combining plastic and metal layers provides cost-effective, versatile, and visually appealing cable ducts with enhanced design options, including UV protection and hygiene suitability, while eliminating the need for grounding and ensuring a seamless installation.
Implementation Method 1
the closure device consisting of a partially elastic hook (10) and an abutment (11)
Data Source
Figure 1
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AI summary
The invention relates to a device (1) for receiving lines, cables (2), or electrically conductive parts in an elongated channel or cable duct (3) having a channel housing (7), which can be closed by means of a closure device (4) that can be connected to the channel housing. The object of the invention is to design the device for receiving lines, cables, or electrically conductive parts cost-effectively by using two different layers, in particular to design the outer layers in different ways. This object is achieved according to the invention in that the channel housing (7) consists of at least two interconnected layers, wherein the first layer (5) surrounds the second layer (6) of the channel housing (7) at least on some sides or even completely.