Sliding Wire Routing Structure With Rotary Guide for Bend Control
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Solution Overview
Problem
In routing structures with rotary members, excessive bending of electric wires due to rotation can reduce their durability, necessitating a solution to minimize wire curvature.
Innovation Solution
A routing structure featuring a protector with a routing path and a rotary member with a cylindrical portion through which the electric wire is inserted, allowing the rotary member to pivot between two positions to adjust the wire's curvature, with the shaft center of the rotary member positioned to maintain an appropriate bending radius.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rotary member rotates to accommodate sliding member movement, then the routing structure maintains connectivity, but the electric wire experiences excessive bending which reduces durability
Solution Approach 1:
A guide member is introduced as an intermediary component between the rotary member and the electric wire. This guide member has a guide hole through which the electric wire passes, constraining the wire's movement path and preventing excessive bending during rotary member rotation. The guide member mediates the interaction between the rotating component and the wire, allowing rotation while protecting the wire from harmful curvature.
Solution Approach 2:
The invention changes the spatial parameters of the routing path by positioning the guide hole at a specific location and orienting it at a specific angle relative to the rotary member's rotation axis. This parameter optimization ensures that as the rotary member rotates between different positions, the electric wire follows a controlled path that maintains an appropriate bending radius, thus improving wire durability while preserving routing adaptability.
2Device complexity
If the shaft center is positioned on the central shaft line, then the rotary member structure is simplified, but the electric wire curvature cannot be optimized across different rotational positions
Solution Approach 1:
The invention employs asymmetric positioning of the guide hole within the guide member, rather than symmetric alignment with the rotary member's central shaft line. The guide hole is positioned offset from the center and oriented at a specific angle, creating an asymmetric routing path that optimizes the electric wire's curvature characteristics during rotation. This asymmetric design allows the wire to maintain better bending radius across different rotational positions, improving durability despite the slightly increased structural complexity.
Data Source
AI summary
A routing structure includes a protector in which an electric wire connecting a vehicle body and a sliding member is routed in a routing path and a rotary member arranged in the routing path, having a cylindrical portion through which the electric wire is inserted, and rotatably supported by the protector. The routing path has a first opening through which the electric wire is drawn out toward the vehicle body. The rotary member is pivotally rotated between a first rotational position and a second rotational position. The first rotational position is a rotational position in which the cylindrical portion is directed toward the sliding member at a first position in a sliding direction. The second rotational position is a rotational position in which the cylindrical portion is directed toward the sliding member at a second position.