Link and Wire Harness for Corrugated Tube Engagement
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Solution Overview
Problem
Conventional links for fixing corrugated tubes to box-shaped protectors may fail to maintain engagement under strong external forces due to diameter reduction, leading to potential separation or positional deviation.
Innovation Solution
A link with an engagement portion, an attachment portion, and a projection piece that projects alongside the corrugated tube, which can be secured with a fixing tape to enhance the connection between the corrugated tube and the protector, ensuring stable engagement even under strong forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional link with engagement ribs is used to fix the corrugated tube to the protector, then the structure is simple and easy to manufacture, but the engagement may fail under strong external forces due to diameter reduction of the corrugated tube
Solution Approach 1:
The link is divided into distinct functional segments: an engagement portion with ribs for interfacing with the corrugated tube, an attachment portion for securing to the protector, and a projection piece for additional fixation. This segmentation allows each part to perform its specific function optimally while maintaining overall reliability under external forces.
Solution Approach 2:
The projection piece extends from the engagement portion in a direction alongside the corrugated tube, adding a dimensional element that provides an additional fixation point. This extra dimension enhances engagement reliability by creating multiple contact points between the link and the corrugated tube, preventing failure even when the tube diameter changes under load.
2Strength
If the link structure is simplified for easy manufacture, then manufacturing cost is reduced, but the connection strength between corrugated tube and protector is insufficient under strong external forces
Solution Approach 1:
The link structure is segmented into functional portions (engagement portion with ribs, attachment portion, projection piece) that can be molded as a single integrated component. This segmentation defines clear functional zones without requiring multiple separate parts, maintaining ease of manufacture while achieving superior connection strength through the distributed engagement points.
Solution Approach 2:
The engagement portion, attachment portion, and projection piece are merged into a single integrated link component that can be manufactured in one process. This combination provides enhanced connection strength through multiple engagement features while avoiding the complexity of assembling multiple separate parts, thus maintaining manufacturing simplicity.
3Reliability
If a projection piece is added to the link to enhance engagement, then the connection reliability is improved, but the device complexity increases
Solution Approach 1:
The projection piece is merged with the engagement portion and attachment portion to form a single integrated link component. This unified structure enhances engagement reliability by providing multiple contact points (ribs and projection) while avoiding the complexity of separate components, as the entire assembly can be manufactured as one piece.
Solution Approach 2:
The link is designed as a multi-functional component where the engagement portion with ribs provides one mode of engagement with the corrugated tube, the projection piece provides an additional engagement mode, and the attachment portion secures to the protector. This multi-functionality enhances reliability without requiring multiple separate components, maintaining structural simplicity.
Data Source
AI summary
A link connects a corrugated tube to a box-shaped protector. The link includes an engagement portion capable of engaging with the corrugated tube, an attachment portion capable of attaching to the protector, and a projection piece projecting alongside the corrugated tube.