Vehicle Wire Routing Structure for Tight Bend Radius Control
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Solution Overview
Problem
In routing structures between a vehicle body and a slide body, biasing members tend to develop a tapered shape when curved in narrow spaces, leading to a decrease in the bending radius of electric wires.
Innovation Solution
A routing structure that includes a tubular exterior member with a biasing member inserted through it, featuring a support structure with first and second arcuate portions in the curved portion of the biasing member, convex towards the lower and upper sides respectively, to prevent the formation of a tapered shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the biasing member is curved in a narrow space between the vehicle body and the slide body, then the routing structure can be compact, but the biasing member develops a tapered shape causing decreased bending radius of the electric wire
Solution Approach 1:
A support structure is introduced as an intermediary element between the biasing member and the exterior member. This support structure includes support protrusions that extend into the curved portion of the biasing member, providing internal support to maintain a constant bending radius and prevent tapered shape formation while allowing compact routing
Solution Approach 2:
The support structure is specifically positioned only in the curved portion of the biasing member where the tapered shape problem occurs. The support protrusions are strategically placed to provide localized reinforcement exactly where needed, without affecting other portions of the routing structure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed routing structure effectively suppresses the formation of a tapered shape in the biasing member, thereby maintaining the bending durability of the electric wire and ensuring stable operation of the slide body mechanism.
Implementation Method 1
a biasing member (50) inserted through the exterior member (30), and having a curved portion (54) curved in the vehicle front-rear direction (X) at a position between the first end portion (30a, 30b) and the second end portion (30a, 30b)
Data Source
AI summary
A routing structure includes a first fixing part fixed to a rail, a second fixing part fixed to a slide body, a tubular exterior member, a biasing member inserted through the exterior member and having a curved portion curved in a vehicle front-rear direction at a position between a first end portion and a second end portion of the exterior member, and a support structure supporting the biasing member. The support structure includes at least one of a first support structure that forms a first arcuate portion in the curved portion and a second support structure that forms a second arcuate portion in the curved portion.