Resilient Strip Detachable Connection for Cable Ducts

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Solution Overview

Problem

Existing detachable connections for cable ducts and similar sections face challenges such as requiring tools for assembly, difficulty in reaching awkward spaces, limited detachability due to material tolerances and elasticity, and inability to connect with rigid materials, leading to insecure or overly tight connections.

Innovation Solution

A system featuring first and second insertion ribs forming grooves, with resilient material between sections, allowing for tool-free assembly and detachment without deformation, ensuring secure yet loose connections suitable for various materials and environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If snap connections are used to enable tool-free assembly, then ease of operation is improved, but connection reliability deteriorates due to tolerances and material elasticity

Engineering Contradiction:
Improvetool-free assemblyVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A resilient intermediate element is introduced between the first section and connecting parts to mediate the connection. This resilient element absorbs dimensional tolerances and material elasticities, enabling reliable detachable connections without requiring precise manufacturing tolerances or special tools for assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If resilient material is added to accommodate tolerances, then connection reliability is improved, but device complexity increases

Engineering Contradiction:
Improveconnection stabilityVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A resilient element in the form of a flexible strip or film is used to accommodate dimensional variations and material elasticities. This simple flexible component effectively absorbs tolerances without requiring complex adjustment mechanisms or multiple parts, thus improving connection reliability while adding minimal structural complexity.

Inventive Principle:
Principle #30Flexible shells and thin films

3Strength

If rigid materials are used for durability, then strength is improved, but adaptability deteriorates due to inability to deform for connection

Engineering Contradiction:
Improvematerial durabilityVSAvoidconnection compatibility
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The connection system is segmented into three independent components: rigid first section, rigid connecting parts, and a separate resilient intermediate element. This segmentation allows the main structural components to be made from durable rigid materials while the dedicated resilient element provides the necessary flexibility and adaptability for connection, thus resolving the conflict between strength and adaptability.

Inventive Principle:
Principle #1Segmentation

4Reliability

If sealing elements are added to ensure tight connection, then connection reliability is improved, but ease of operation deteriorates due to difficulty in detachment

Engineering Contradiction:
Improvesealing effectivenessVSAvoiddetachability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The resilient element provides a dynamic connection that automatically adjusts to dimensional variations and material elasticities during both assembly and detachment. This dynamic characteristic enables the connection to maintain reliable sealing under normal conditions while remaining easily detachable when force is applied, as the resilient element can deform to facilitate removal.

Inventive Principle:
Principle #15Dynamics

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

Enables secure, detachable, and easy-to-assemble connections that maintain sealing and ventilation, allowing for use in rigid materials and adjustable density for optimal performance, extending material choices and ensuring connection stability over the full length.

Implementation Method 1

at least partially resilient material is provided between the one or more first sections and the two or more connecting parts of the one or more second sections

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2034577B1A system for detachably connecting one or more first sections between two or more connecting parts of one or more second sections
Publication Date: 2010.05.19 MAHIEU JAN EMIEL WERNER
  • EP2034577B1 patent drawingFigure 1~2

AI summary

The invention relates to a system for detachably connecting one or more first sections (1) between two or more connecting parts (3) of one or more second sections (2), in which the detachable connection between the abovementioned one or more first sections (1) and the abovementioned two or more connecting parts (3) is made resilient, in which the abovementioned resilient connection is achieved by providing at least partially resilient material (4) between the one or more first sections (1) and the two or more connecting parts of the one or more second sections (2). With such a system, a detachable connection can be achieved without tools, which connection closes off sufficiently and yet is easy to detach without tools.