Cable Marker Film Hinge Local Quality Design
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Solution Overview
Problem
Conventional cable markers face challenges in achieving transparency, elasticity, and weather resistance while meeting fire protection requirements, as materials with good transparency often have reduced elasticity and are prone to brittleness when exposed to water, making it difficult to form functional film hinges.
Innovation Solution
A cable marker design featuring a film hinge with a tapered connecting section that reduces in width perpendicular to the pivot plane, allowing for defined bending and increased elasticity, and a connection point between the housing and cover that avoids direct edge contact to minimize breakage risk, using highly transparent and stiff plastics like polycarbonate or polyamide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If transparent materials like polycarbonate or polyamide are used to achieve good transparency and fire resistance, then transparency and weather resistance are improved, but elasticity is reduced and the material becomes prone to brittleness
Solution Approach 1:
The film hinge is designed with a connecting section that has a reduced width compared to the base sections, creating a local area with different geometric properties. This localized geometric modification allows the hinge to achieve the necessary flexibility and bending capability even when made from stiff, transparent materials like polycarbonate or polyamide, thus resolving the contradiction between transparency and elasticity.
2Reliability
If plastic materials are used to ensure weather resistance and fire protection, then durability is improved, but the materials absorb water and become brittle, increasing susceptibility to breakage
Solution Approach 1:
The film hinge incorporates a connecting section with reduced width that creates a defined bending area. This local geometric feature allows controlled flexing at the hinge joint, preventing stress concentration and crack propagation in the plastic material. The design enables the use of weather-resistant plastics while mitigating their inherent brittleness through strategic geometric modification.
3Strength
If the film hinge has uniform width throughout to maintain structural integrity, then strength is improved, but the hinge cannot be easily bent and opened
Solution Approach 1:
The film hinge is designed with non-uniform width: the base sections maintain sufficient width for structural integrity and connection to housing and cover, while the connecting section has reduced width to facilitate easy bending and opening. This localized geometric variation allows the hinge to simultaneously achieve both structural strength and operational flexibility.
Solution Approach 2:
The connecting section of the film hinge features curved edges that define a bending line. This curvature design concentrates the bending stress along a predictable path, making the hinge easier to open while maintaining overall structural integrity. The curved geometry distributes stresses more effectively than sharp corners would provide.
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 design enables a highly transparent, durable cable marker that can be easily handled and opened, maintaining functionality and resistance to environmental stresses, with improved resistance to breakage and compatibility with various applications.
Implementation Method 1
the cable marker must be so elastic, particularly in the area of its film hinge, that the cover can easily be attached to the housing by bending the film hinge without destroying the film hinge
Data Source
Figure 1A~1B
Figure 2A~3A
Figure 3B~3D
AI summary
The invention relates to a cable marker comprising: a housing, which has an accommodating opening for accommodating a label for marking a cable; a cover for closing the accommodating opening in a closed position; and a film hinge, by means of which the housing is integrally connected to the cover in such a way that, in an open position in which the cover does not close the accommodating opening, the cover can be pivoted in relation to the housing along a pivoting plane. According to the invention, the film hinge (4) has a first base segment (40), by means of which the film hinge (4) is connected to the housing (2), a second base segment (41), by means of which the film hinge (4) is connected to the cover (3), and a connecting segment (42) arranged between the first base segment (40) and the second base segment (41), wherein the connecting segment (42) has a width (W1) that is reduced in comparison with at least one of the base segments (40, 41) as viewed in a direction perpendicular to the pivoting plane (E). In this way, a cable marker is provided which can be handled in a comfortable way, can be designed to be see-through with good transparency, and additionally can be optimized for a desired use.