Insert-Molded Wiring Member for Uniform Positioning Force
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Solution Overview
Problem
Existing wiring members face challenges in uniformly distributing the force supporting the linear transmission member during molding, leading to potential defects and uneven stress distribution.
Innovation Solution
The wiring member incorporates a resin molded portion with specific positioning traces, including a recess and partial recessed portions, to distribute force uniformly among positioning portions, preventing strong contact between the linear transmission member and positioning portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a linear transmission member is molded with positioning portions during resin molding, then the linear transmission member can be positioned and supported, but the force may concentrate on specific positioning portions causing non-uniform stress distribution and potential defects
Solution Approach 1:
The second positioning portion trace is divided into a pair of partial recessed portions that are formed apart from each other. This segmentation allows the force to be distributed across multiple contact points rather than concentrating at a single location, resolving the contradiction between positioning accuracy and stress distribution uniformity
Solution Approach 2:
Different positioning portion traces have different configurations tailored to their specific functions. The first positioning portion trace is a continuous recess for stable positioning, while the second positioning portion trace is divided into partial recessed portions to distribute force. This local differentiation optimizes both positioning accuracy and stress distribution
Data Source
AI summary
A wiring member includes: a linear transmission member; and a resin molded portion molded with at least a portion of the linear transmission member in a direction in which the linear transmission member extends used as an insert portion, wherein the resin molded portion includes a first positioning portion trace and a second positioning portion trace located apart from each other in the direction in which the linear transmission member extends, the first positioning portion trace is a recess that extends in a direction traversing the linear transmission member, the second positioning portion trace includes a pair of partial recessed portions that extend in a direction in which the first positioning portion trace extends, and the pair of partial recessed portions are formed apart from each other at positions closest to the linear transmission member in a direction in which the pair of partial recessed portions extend.