Flat Wire Harness Attachment Structure for Better Mounting Visibility
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Solution Overview
Problem
The large width-to-thickness ratio of flat wire harnesses obstructs the operator's vision during attachment operations, making the process cumbersome.
Innovation Solution
The attachment structure includes a through hole in the base material where wire-like transmission members are not disposed, with a rod-like part passing through the hole, a fixing part at one end to secure to the attachment target, and a retaining part at the other end to prevent dislodgment, where the retaining part's outer size exceeds the hole's dimension, facilitating easy insertion and visibility of the attachment target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a flat wire harness with large width dimension is used, then the wire harness can accommodate more transmission members, but the operator's vision is obstructed during attachment operation
Solution Approach 1:
The base material is segmented by forming a through hole that divides it into first and second parts, creating a visual gap that improves operator visibility of the attachment target member while maintaining the overall flat structure that holds multiple transmission members
2Reliability
If the wire harness is attached securely to prevent detachment, then reliability is improved, but the attachment structure becomes more complex
Solution Approach 1:
The attachment part integrates multiple functions into a single component: the rod-like part provides insertion through the through hole, the fixing part secures the attachment to the target member, and the retaining part prevents detachment by engaging with the base material, all combined in one integrated attachment part
Solution Approach 2:
The attachment part is inserted through the through hole in the base material, with the rod-like part passing through the hole and the retaining part nested within the base material structure to prevent removal, creating a layered nested configuration
Data Source
AI summary
An attachment structure of a flat wire harness includes: an attachment target member; a flat wire harness; and an attachment part. In the flat wire harness, a through hole is formed in a part of a base material where a plurality of electrical wires are not disposed. The attachment part includes a rod-like part passing through the through hole, a fixing part provided to a first end portion of the rod-like part to fix the rod-like part to the attachment target member, and a retaining part provided to a second end portion of the rod-like part to prevent the rod-like part from coming out of the through hole. An outer size of the retaining part is larger than a dimension of the through hole, and the dimension of the through hole is equal to or larger than a thickness of the rod-like part.