Automated Cable Harness Bundling via Sprayable Fiber Suspension

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Solution Overview

Problem

Existing methods for producing cable harnesses, such as taping and using corrugated tubes, require manual labor and lack automation, increasing production costs.

Innovation Solution

A method involving a textile-type fiber interlacement created by applying a suspension of binding agent and loose fibers to the line bundle, which solidifies into a woven fabric-like bundling element, adaptable to various geometries and surfaces, allowing for automated production and flexible application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If taping or corrugated tubes are used to bundle lines, then the lines are held together as a bundle, but the process requires manual labor and cannot be readily automated

Engineering Contradiction:
Improveautomation capabilityVSAvoidmanufacturing simplicity
Core Design Contradiction:
Extent of automationVSEase of manufacture

Solution Approach 1:

The patent replaces manual mechanical operations (wrapping tape, inserting lines into corrugated tubes) with an automated spray application system. The suspension is applied via spray nozzle to automatically form the bundling element, eliminating the need for manual labor while maintaining effective line bundling.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the physical state and application method of the bundling material from pre-formed solid structures (tape, tubes) to a sprayable suspension that transforms into a fiber interlacement. This parameter change enables automated application while achieving the same bundling function.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If classic injection molding is used to configure cable sheaths, then discrete locations are molded, but the process requires molds and is not easily adaptable to complex geometries

Engineering Contradiction:
Improvegeometric adaptabilityVSAvoidmold complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent uses a flexible sprayable suspension that can conform to any geometry, replacing rigid molds. The liquid suspension adapts to complex shapes and surfaces, eliminating the need for custom molds for each geometric configuration.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The spray application system serves multiple functions: it can bundle lines, form protective sheaths, and adapt to various geometries all through the same process, eliminating the need for different molds for different applications.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If manual wrapping or insertion methods are used, then bundling elements are applied, but production costs increase due to lack of automation

Engineering Contradiction:
Improveproduction efficiencyVSAvoidmanufacturing simplicity
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent replaces manual mechanical operations with an automated spray system that applies the suspension uniformly and efficiently, significantly increasing production speed and reducing labor costs while maintaining simple manufacturing principles.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The spray application process allows continuous production without the stop-start nature of manual operations. The suspension can be continuously applied along the line bundle, improving production efficiency and throughput.

Inventive Principle:
Principle #20Continuity of useful action

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 automated production of cable harnesses with a bundling element that adapts to complex shapes, reducing production costs and improving efficiency by eliminating the need for manual wrapping and complex molds.

Implementation Method 1

a suspension which includes a binding agent and loose fibers is applied to the line bundle... which solidifies into a woven fabric-like bundling element

Methodology Applied
Scientific EffectSolidification: Phase Change

Data Source

PatentUS10068680B2Cable harness and method for producing the cable harness
Publication Date: 2018.09.04 LEONI BORDNETZ-SYSTEME GMBH & CO KG
  • US10068680B2 patent drawing
  • US10068680B2 patent drawing

AI summary

A method for producing a cable harness, in particular for the motor vehicle industry, includes combining a plurality of individual lines into a line bundle. The line bundle is provided with a bundling element. The bundling element is constructed as a textile-like fiber interlacement or weave which is produced by applying a suspension including fibers and a binder to the line bundle. A cable harness produced by the method is also provided.