Segmented-Rigid Wiring Module for Easy Vehicle Ceiling Mounting
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Solution Overview
Problem
Existing wire harness assemblies sag when mounted to vehicle ceilings, making mounting operations difficult due to the need for multiple attachments, which are challenging to align accurately.
Innovation Solution
A wiring module with a sheet-shaped member and a rigid member composed of multiple divided members that can be displaced relative to each other, allowing for easy alignment and attachment to mounting targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid member is attached to suppress sagging of the wire harness assembly, then sagging is reduced, but mounting difficulty increases due to tolerance accumulation across multiple attachment positions
Solution Approach 1:
The rigid member is divided into multiple divided members (first divided member, second divided member, etc.) that can be independently positioned and attached. Each divided member can be attached separately to the ceiling, allowing for independent adjustment and reducing the accumulation of tolerance errors that would occur with a single large rigid member attached at multiple fixed positions.
Solution Approach 2:
The divided members are coupled to be displaceable relative to each other, creating a dynamic structure that can adapt during mounting. This displacement capability allows the attachment parts to accommodate tolerance variations in ceiling attachment positions, making the mounting process easier while maintaining sagging suppression.
2Stability of the object's composition
If the rigid member extends over a wide area to suppress sagging, then sagging suppression improves, but mounting precision requirements increase due to multiple attachment positions
Solution Approach 1:
By segmenting the rigid member into multiple smaller divided members, each with its own attachment parts, the system can cover a wide area for effective sagging suppression while allowing each segment to be positioned independently. This reduces the precision requirements for each individual attachment position compared to a single large rigid member.
Solution Approach 2:
The displaceable coupling between divided members changes the structural parameter from fixed to variable, allowing the attachment parts to adjust their positions within certain ranges. This accommodates tolerance variations in ceiling mounting positions without requiring high precision, while still maintaining wide area coverage for sagging suppression.
Data Source
AI summary
An object is to facilitate incorporation of a wiring module into a vehicle. A wiring module includes: a sheet-shaped member that extends in a planar shape relative to a mounting target portion of a vehicle; a transmission member held by the sheet-shaped member; and a rigid member provided on the sheet-shaped member, wherein the rigid member includes a plurality of divided members, the rigid member is provided with a plurality of attachment parts configured to be attached to the mounting target portion, the plurality of divided members include a first divided member and a second divided member that are coupled so as to be displaceable to each other, and a coupling portion between the first divided member and the second divided member is provided between the plurality of attachment parts.