Wire Harness Protector with Projecting Portion for Branch Line Routing
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Solution Overview
Problem
Existing wire harness protectors often cause interference between the main line and branch line when the branch line is bent, leading to excessive strain on the branch line due to their design.
Innovation Solution
A wire harness protector with a projecting portion on the first side panel that creates a space between the main line and the route forming surface, allowing the branch line to bend without interference, and an inclined surface on the opposite side of the notch to prevent damage to the main line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the branch line is drawn out through the notch in the side panel, then the branch line can be routed to the exterior of the accommodation route, but the main line may interfere with the bending branch line causing excessive strain
Solution Approach 1:
The side panel is segmented by providing a projecting portion that divides the space into two regions: one for the main line and another for the bending branch line. This segmentation prevents interference between the two lines while allowing the branch line to be routed through the notch without excessive strain.
Solution Approach 2:
The projecting portion acts as an intermediary structure that mediates the spatial relationship between the main line and the bending branch line. By positioning the main line away from the route forming surface, it creates sufficient clearance for the branch line to bend freely without interference.
2Volume of moving object
If the main line is positioned close to the route forming surface, then the structure is compact, but the branch line cannot bend to the predetermined position without interference
Solution Approach 1:
The projecting portion extends in the vertical dimension from the route forming surface, creating a three-dimensional arrangement that separates the main line and branch line paths. This dimensional approach allows the branch line to bend freely in the horizontal plane while the main line is elevated vertically, maintaining compactness without interference.
3Strength
If the projecting portion has thick walls, then the structure is strong, but shrinkage occurs during manufacturing reducing precision
Solution Approach 1:
The wall thickness of the projecting portion is optimized to a specific range that balances structural strength with manufacturing precision. By controlling the wall thickness parameter, the design prevents excessive shrinkage during injection molding while maintaining sufficient strength to support the wire harness routing function.
Data Source
AI summary
A wire harness protector includes a bottom panel, a first side panel rising from one edge of the bottom panel, and a second side panel rising from another edge of the bottom panel. The bottom panel, first side panel, and second side panel demarcate an accommodation route that accommodates a main line of a wire harness. The first side panel is provided with a notch through which a branch line that branches from the main line is drawn out to an exterior of the accommodation route. A surface of the first side panel that faces the accommodation route is a route forming surface, and a projecting portion projects from the route forming surface.