Wire Harness Path Restrictor Engagement for Precise Positioning
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Solution Overview
Problem
There is a demand for improving the positional accuracy of the path restricting member in wire harnesses for vehicles, as existing technologies lack sufficient precision in restricting the path of wire harnesses.
Innovation Solution
A wire harness configuration that includes a path restricting member with a first insertion port and a connecting portion, along with an attaching member that covers the connecting portion, providing a second engagement that engages with the path restricting member to prevent movement and enhance positional accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a path restricting member is attached to the exterior member to restrict the wire harness path, then the wire harness path can be restricted, but the positional accuracy of the path restricting member deteriorates due to lack of engagement structures
Solution Approach 1:
The path restricting member is divided into a body portion and a connecting portion, where the connecting portion includes engagement protrusions that engage with engagement recesses in the exterior member. This segmentation allows the path restricting member to be attached to the exterior member with high positional accuracy while maintaining a relatively simple overall structure.
Solution Approach 2:
The connecting portion acts as an intermediary between the path restricting member body and the exterior member, providing engagement protrusions that mediate the connection. This intermediary structure enables precise positioning without requiring complex attachment mechanisms.
2Manufacturing precision
If engagement structures are added to the path restricting member to improve positional accuracy, then the positional accuracy improves, but the device complexity increases
Solution Approach 1:
Engagement structures (protrusions and recesses) are provided only at specific local positions on the path restricting member body and connecting portion, rather than throughout the entire structure. This localized approach improves positional accuracy at critical attachment points while keeping the overall device complexity low.
Data Source
AI summary
A wire harness including: a wire harness main body that includes an electric wire and an exterior tube that encloses an outer circumferential surface of the electric wire; a path restricting member that is attached to an outer circumferential surface of the exterior tube and restricts a path of the wire harness main body; and an attaching member that is attached to an outer circumferential surface of a portion of the path restricting member in a lengthwise direction of the path restricting member.