Wire Harness Junction Holder with Arc-Shaped Bending Radius Control
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Solution Overview
Problem
Existing wire harness branch fixtures face difficulties in maintaining the minimum bending radius of special wires during the wiring and tape wrapping processes, leading to potential performance issues and increased loading space requirements when integrated into vehicles.
Innovation Solution
A holding fixture with arc-shaped special wire branching and guiding parts that guide special wires to maintain their minimum bending radius, integrated with trunk wire guiding parts and regular wire branching and guiding parts, allowing for secure wiring and easy tape wrapping, while reducing the loading space needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a new jig of special curvature is attached to the wiring plate to wire special wires with large minimum bending radius, then the wiring can be performed while maintaining the minimum bending radius, but jigs crowd in the branch part and it becomes difficult to perform tape wrapping operation
Solution Approach 1:
The patent combines the functions of multiple jigs into a single integrated holding fixture that includes both the curvature-guiding structure for special wires and the support structures for tape wrapping operations. This merging eliminates the need for separate jigs while maintaining both the minimum bending radius and enabling tape wrapping operations.
Solution Approach 2:
The holding fixture is designed as a multi-functional device that simultaneously guides special wires along their required curvature path, supports regular wiring operations, and provides a stable structure for tape wrapping. This universal fixture replaces multiple specialized jigs with one device that performs all necessary functions.
2Reliability
If special wires are wired with large minimum bending radius, then the performance can be guaranteed, but it is hard to maintain such state with tape wrapping and space efficiency is reduced
Solution Approach 1:
The holding fixture incorporates arc-shaped guiding walls that define the exact curvature path required by special wires. These curved structures guide the wires along their minimum bending radius paths, ensuring performance requirements are met while maintaining a compact configuration that minimizes loading space.
Solution Approach 2:
The fixture design optimizes the curvature radius parameter to match the minimum bending radius requirement of special wires. By precisely controlling this geometric parameter through the arc-shaped guiding structures, the system maintains wire performance while achieving space-efficient packaging.
3Stability of the object's composition
If wiring and tape wrapping are performed on the wiring plate while maintaining predetermined minimum bending radius, then the wired state can be maintained, but the bend radius might become smaller than the minimum bending radius in middle stage and performance trouble might occur
Solution Approach 1:
The holding fixture is designed with pre-formed arc-shaped guiding walls that establish the correct curvature path before wiring begins. This preliminary structural preparation ensures that special wires are automatically guided along their required minimum bending radius paths throughout the wiring and tape wrapping processes, preventing any deviation that could reduce the bend radius below acceptable limits.
Solution Approach 2:
The arc-shaped guiding walls act as intermediary structures between the wire and the final assembled configuration. These guiding structures physically constrain the wire path during all operations, serving as a mediator that ensures the minimum bending radius is maintained throughout the process, preventing performance troubles.
Data Source
Figure 1(a)~1(c)
Figure 2(a)~2(b)
Figure 3(a)~3(b)
AI summary
The purpose of the present invention is to provide a holding fixture of a wire harness branch part so that a wiring operation including tape wrapping can be easily performed, the wired state can be hold until a vehicle loading stage, and space efficiency can be improved. A holding fixture of a wire harness branch part, in which branch wires (W2) of a wire harness are branched in a direction which intersects trunk wires (W1) of the wire harness from the trunk wires, includes a trunk wire guiding part (12) which guides the trunk wires, and special wire branching and guiding parts (13) which make special wires (Wt), which are those wires among the branch wires whose minimum bending radius is restricted, to be curved in a direction which intersects the trunk wires, and guide the special wires. The special wire branching and guiding parts (13) are formed by arc-shaped board walls which make the special wires to be curved with a predetermined radius of curvature and guide the special wires.