Wire Harness Restricting Member Holding Structure
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Solution Overview
Problem
Existing wire harnesses face challenges in holding end portions of restricting members with a simple structure, which affects the stability and alignment of conductors within the harness.
Innovation Solution
A wire harness design featuring a flexible conductor, a restricting member, an armoring member, a first holding member with a recessed part fixed to the vehicle body, and a second holding member with a recessed part fixed to the movable body, where the ends of the armoring member and restricting member are secured, allowing the restricting member to be held without cutouts, thus maintaining a stable path for the conductor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex structure with cutouts or additional components is used to hold the restricting member, then the holding stability is improved, but the device complexity increases
Solution Approach 1:
The holding members are integrated into the armoring member structure, with the restricting member held within the same protective channel. This merging of functions (protection + holding) eliminates the need for separate holding structures with cutouts, achieving stable holding while maintaining structural simplicity
Solution Approach 2:
The armoring member serves multiple functions: it protects the conductor, holds the restricting member in place, and provides structural support. This multi-functionality eliminates the need for dedicated holding structures, reducing overall device complexity while maintaining holding stability
2Reliability
If cutouts are added to the restricting member for holding, then the holding capability is improved, but the manufacturing complexity increases
Solution Approach 1:
Instead of modifying the restricting member with cutouts to enable holding, the invention inverts the approach by designing the holding members to accommodate the intact restricting member. The restricting member maintains its original simple structure while the holding members provide the necessary retention features
Solution Approach 2:
The holding function is extracted from the restricting member itself and implemented through separate holding members. This allows the restricting member to remain simple and easy to manufacture, while the holding capability is provided by dedicated components designed for that specific function
3Ease of manufacture
If a simple structure is used to hold the restricting member, then the ease of manufacture is improved, but the alignment precision deteriorates
Solution Approach 1:
The holding members act as intermediary components between the armoring member and the restricting member, providing precise positioning features that ensure accurate alignment. These intermediaries enable easy assembly while maintaining high alignment precision through their design
4Reliability
If multiple separate components are used for holding, then the holding reliability is improved, but the device complexity increases
Solution Approach 1:
The holding members are integrated into the armoring member assembly, combining multiple functions (protection, holding, support) into a unified structure. This reduces the total number of separate components while maintaining holding reliability through the integrated design
Data Source
Figure 1
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Figure 3~4
AI summary
A wire harness (WH) includes: a flexible conductor (1); a flexible restricting member (2) extending along the conductor and restricting a path of the conductor; a flexible armoring member (3) through which the conductor and the restricting member are inserted; a first holding member (4) including a first recessed part (44) and fixed to the vehicle body, the first recessed part (44) having a first end (2a) of the restricting member inserted therein; and a second holding member (5) including a second recessed part (53) and fixed to the movable body, the second recessed part (53) having a second end (2b) of the restricting member inserted therein. Respective ends of the armoring member are fixed to the first holding member and the second holding member. The respective ends of the restricting member are held by the first recessed part and the second recessed part.