Sliding Door Wire Harness Routing With Guide Tool and Slack Loop
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Solution Overview
Problem
Conventional wire harnesses in vehicles face issues with excessive bending, leading to overload when routed through a link mechanism for a sliding door, which can damage the harness.
Innovation Solution
A wire harness design featuring a harness body with routed portions and guide tools that allow for relative rotation and displacement, using fixing tools to secure portions without displacement, and a guide tool to direct routing paths, ensuring the harness follows the link mechanism without overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the harness body is routed along the link mechanism to follow its movement, then the harness body can adapt to the sliding operation, but excessive bending occurs causing overload on the harness body
Solution Approach 1:
A guide tool is introduced as an intermediary component between the harness body and the link mechanism. The guide tool is fixed to the first arm member and provides a controlled routing path for the harness body, allowing it to follow the link mechanism's movement while preventing excessive bending and reducing mechanical stress on the harness body.
2Reliability
If the harness body follows the link mechanism movement closely, then electrical connectivity is maintained, but the routing path becomes complex and difficult to manage
Solution Approach 1:
The guide tool serves as a mediator that simplifies the routing path by providing a defined trajectory for the harness body. This intermediary structure maintains reliable electrical connectivity while organizing the harness routing in a manageable and predictable manner, reducing overall system complexity.
Solution Approach 2:
The guide tool is pre-installed and fixed to the first arm member before the harness body is routed. This preliminary action establishes the correct routing path in advance, making the subsequent harness installation simpler and ensuring proper positioning without requiring complex routing maneuvers.
Data Source
AI summary
A harness body includes a first routed portion routed to an other end portion of a first arm member on a first coupling target side, a second routed portion routed on the first coupling target side with respect to the first routed portion, and a third routed portion guided toward a fixed portion on a second coupling target side by a harness guide tool at the other end portion of the first arm member and having a fixing portion fixed to the fixed portion, a link mechanism includes a first rotation shaft, a second rotation shaft, and a third rotation shaft, and the second routed portion is wound around the harness guide tool and the third routed portion with slack.