Concave Wire Routing Path with Temporary Guide Pins
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Solution Overview
Problem
Existing electric wire routing methods require costly protectors with erected holding pins to prevent wire entanglement, increasing production costs.
Innovation Solution
A method involving a concave-shaped electric wire routing path in a case with guide pins and a cover, where the electric wire is routed between guide pins and held in place by a cover, eliminating the need for holding pins and allowing for automated operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If erected holding pins are provided on the protector to prevent wire entanglement, then wire routing reliability is improved, but manufacturing costs increase
Solution Approach 1:
The holding pins are extracted from the protector structure and replaced with temporary guide pins that are inserted only during the wire routing process. After routing, the guide pins are removed, leaving the protector structure simple and cost-effective without permanent protruding pins.
Solution Approach 2:
Temporary guide pins are introduced as intermediary tools during the wire routing process. These guide pins facilitate wire placement by providing temporary guidance and positioning, but are not permanently integrated into the protector, thus avoiding the cost increase associated with permanent holding pins.
2Manufacturing precision
If guide pins are inserted through the case to guide the electric wire, then wire routing precision is improved, but device complexity increases
Solution Approach 1:
The guide pins are designed to be movable rather than fixed - they can be inserted into through-holes in the case, positioned to guide the wire, and then removed after routing. This dynamic approach provides precise routing guidance without permanently complicating the device structure.
Solution Approach 2:
The wire routing function is segmented into distinct phases: guide pin insertion, wire routing, and guide pin removal. This segmentation allows the use of simple through-holes in the case rather than complex integrated guiding structures, reducing overall device complexity while maintaining routing precision during the critical routing phase.
Data Source
AI summary
A method of electric wire routing includes: routing an electric wire in an electric wire routing path which is provided in a case and has a concave shape in a cross-sectional view; and covering an upper portion of the electric wire routing path with a cover. A pair of guide pins are inserted into a through hole formed in a bottom portion of the electric wire routing path in the case from below to a position above a side wall portion which forms the electric wire routing path. The electric wire is passed between the guide pins. The cover is assembled to the upper portion of the electric wire routing path while the guide pins are pulled out from the through hole.