Harness Protector for Planar Wire Harness Anchoring

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Solution Overview

Problem

The increasing number of electronic components on vehicles leads to larger wire harness diameters, making it difficult to bend and manage wire harnesses, which results in poor wiring operability and space inefficiency, as conventional band clamps cannot form wire harnesses into a planar shape or securely anchor them against axial loads.

Innovation Solution

A harness protector with a tabular-shaped bottom-plate and rotatable holding plates that crush the wire harness into an oblate cross-section, combined with tying bands and movement restraint projections, allows for easy formation and maintenance of a planar shape, improved anchoring, and reduced space requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the number of electronic components is increased, then the functionality is improved, but the wire harness diameter is enlarged making it difficult to bend and manage

Engineering Contradiction:
ImprovefunctionalityVSAvoidwiring operability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent changes the cross-sectional shape parameter of the wire harness from circular to oblate (flattened) by applying crushing force through the holding plate section. This parameter change allows the wire harness to be bent with a smaller radius and improves wiring operability while accommodating the increased number of electronic components

Inventive Principle:
Principle #35Parameter changes

2Quantity of substance

If the wire harness diameter is enlarged, then more wires can be accommodated, but the bending radius becomes larger requiring more wiring space

Engineering Contradiction:
Improvenumber of wiresVSAvoidwiring space
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

The patent transforms the wire harness from a circular cross-section to an oblate (flattened) cross-section by applying force in the vertical dimension through the holding plate section. This dimensional change allows the wire harness to fit into tighter spaces and reduces the area required for wiring while maintaining the quantity of wires

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

3Reliability

If a conventional band clamp is used, then the wire harness can be anchored, but it cannot form the wire harness into a planar shape or securely anchor it against axial loads

Engineering Contradiction:
Improveanchoring capabilityVSAvoidplanar shape formation
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The patent merges multiple functions into a single holding plate section: it crushes the wire harness into an oblate shape, maintains the planar configuration, and provides anchoring capability against axial loads through movement restraint projections. This integrated structure resolves the limitation of conventional band clamps that could only perform one function

Inventive Principle:
Principle #5Merging (Combining)

4Ease of operation

If the wire harness is made planar, then wiring operability is improved and space is saved, but it requires secure anchoring to maintain the shape under load

Engineering Contradiction:
Improvewiring operabilityVSAvoidanchoring stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies preliminary crushing action through the holding plate section to form the wire harness into an oblate planar shape before anchoring. The movement restraint projections are pre-configured to prevent axial movement, ensuring the planar shape is maintained under load without requiring additional anchoring measures

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2597741B1Harness protector and wire-harness wiring structure
Publication Date: 2018.07.18 YAZAKI CORP
  • EP2597741B1 patent drawingFigure 1A~1B
  • EP2597741B1 patent drawingFigure 2
  • EP2597741B1 patent drawingFigure 3

AI summary

Provided is a harness protector, wherein a wire harness can easily be formed into a planar shape (with an oblate cross section), and maintained in that state. The harness protector is provided with: a protector body (3) further provided with a roughly tabular-shaped bottom-plate section (11) onto which a wire harness (9) is to be placed, and a holding plate section (15) that is integrally formed on one side of the bottom-plate section (11) in pivotable state, and crushes the wire harness (9) into an oblate cross-section shape, along with the bottom-plate section (11); and tying bands (5) that anchor the holding plate section (15) onto the bottom-plate section (11), in a state of having the holding plate section (15) crushing the wire harness (9) into an oblate cross-section shape.