Wire Harness Router Clip Structure to Prevent Cable Slippage

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Solution Overview

Problem

Existing methods for attaching a wiring harness to a vehicle component are inefficient, as they rely on cables being wrapped with tape and secured by cable ties, which can lead to slippage and require additional fastening means, complicating the routing and securing of cables.

Innovation Solution

A router clip with a holder, connecting section, and counter-holder design that creates two laterally open receiving spaces for cables, featuring toothing for enhanced engagement and adhesion, and a mold for producing the harness that allows easy cable insertion and secure embedding of the clip within a foam casing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cables are wrapped with tape and secured by cable ties, then the wiring harness can be attached to the vehicle component, but the attachment is prone to slippage and requires additional fastening means

Engineering Contradiction:
Improveattachment reliabilityVSAvoidfastening structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the holder and counter-holder into a single integrated router clip structure that simultaneously provides both support and fastening functions. The holder portion engages with the vehicle component while the counter-holder secures the cable arrangement, eliminating the need for separate cable ties and tape wrapping.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The router clip is divided into distinct functional portions: a holder portion for engaging the vehicle component, a connecting portion for structural linkage, and a counter-holder portion for securing the cable arrangement. This segmentation allows each portion to be optimized for its specific function while working together as a unified fastening system.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If a simple holder design is used, then the device complexity is reduced, but the cable arrangement cannot be securely fastened to prevent slippage

Engineering Contradiction:
Improverouter clip structure simplicityVSAvoidcable fastening reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The router clip incorporates elastic portions in both the holder and counter-holder that provide dynamic engagement. The holder portion has elasticity in a first direction to accommodate assembly variations, while the counter-holder has elasticity in a second direction to maintain continuous clamping force on the cable arrangement, preventing slippage under vibration and thermal expansion.

Inventive Principle:
Principle #15Dynamics

3Volume of moving object

If the holder and counter-holder are positioned close together, then the device size is reduced, but cables cannot be properly inserted into the receiving space

Engineering Contradiction:
Improverouter clip sizeVSAvoidcable insertion ease
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The router clip design positions the holder and counter-holder to define a receiving space that is accessible from multiple directions. The connecting portion is arranged to allow cable insertion from the side while maintaining a compact overall footprint, utilizing three-dimensional spatial arrangement to resolve the conflict between size and accessibility.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Ease of operation

If the router clip uses elastic material for the holder and counter-holder, then the ease of assembly is improved, but the precision of cable positioning may be reduced

Engineering Contradiction:
Improveassembly easeVSAvoidcable positioning precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The router clip employs different material properties in different regions: the holder and counter-holder portions use elastic materials for easy assembly and accommodation of tolerances, while the connecting portion uses a more rigid material to maintain precise geometric relationships and positioning accuracy during operation.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4309958A1Router clip, wire harness, mold and method
Publication Date: 2024.01.24 YAZAKI SYSTEMS TECHNOLOGIES GMBH
  • EP4309958A1 patent drawingFigure 1~2
  • EP4309958A1 patent drawingFigure 3~5
  • EP4309958A1 patent drawingFigure 6~7

AI summary

The invention relates to a router clip (15), a cable harness (30), a mold (300), and a method. The router clip (15) comprises a holder (100), a connecting section (105), a fastening section (110), and a counter-holder (115), wherein the connecting section (105) extends in a first direction (z) and connects the holder (100) to the counter-holder (115), wherein the fastening section (110) is connected to the holder (100), and wherein the fastening section (110) is configured to engage with the component (30) and fasten the router clip (15) to the component (30), wherein the first holder section (170) and the first counter-holder section (160) project beyond a first transverse side (165) of the connecting section (105) and together define a first receiving space (175).wherein the holder (100) with a second holder section (190) arranged opposite the first holder section (170) in a second direction (y) inclined to the first direction (z) and the counter-holder (115) with a second counter-holder section (185) arranged opposite the first counter-holder section (160) in the second direction (y) project over a second transverse side (180) of the connecting section (105) and together define a second receiving space (195) for receiving a second part (41) of the cable arrangement (20) of the cable harness (10).