Wire Harness Protector with Sliding Band Lock
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Solution Overview
Problem
Conventional electrical wire protectors with through holes for locking clamps protrude significantly, risking contact with surrounding members and limiting installation area due to the protrusion of the lock portion.
Innovation Solution
A protector-equipped wire harness design featuring a plate-shaped protector with a slide supporting portion and a band lock portion that allows the band to be wound around the wire without needing a conventional clamp, using a slidable band lock portion that contacts a receiver to secure the attachment member, and includes retaining protrusions and a cover to prevent slippage and protrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a through hole is used for locking the clamp to the protector, then the lock portion can be securely fixed, but the lock portion protrudes outward by a large length causing contact with surrounding members and limiting installation area
Solution Approach 1:
The lock portion is nested within a recess formed in the protector body, allowing the band to pass through while the lock portion itself is contained within the recess. This nesting structure prevents the lock portion from protruding outward, eliminating contact with surrounding members while maintaining secure locking functionality through the receiver mechanism.
Solution Approach 2:
The design transitions from a through-hole configuration (where the lock portion would protrude in one dimension) to a recess configuration (where the lock portion is contained within a three-dimensional space). By creating a recess that extends into the protector body, the solution accommodates the lock portion in an internal dimension rather than allowing external protrusion.
2Reliability
If a conventional clamp with band and lock portion is used, then the electrical wire can be secured to the protector, but the structure becomes complex and requires multiple separate components
Solution Approach 1:
The protector and attachment member are merged into a single integrated structure. The slide supporting portion with the receiver is formed directly on the protector body, eliminating the need for separate clamps and lock mechanisms. This integration maintains secure attachment functionality while significantly simplifying the overall structure and reducing the number of discrete components.
Solution Approach 2:
The protector body serves multiple functions: it protects the electrical wire, provides structural support, and incorporates the attachment mechanism through the slide supporting portion and receiver. This multi-functionality eliminates the need for separate protective and fastening components, reducing device complexity while maintaining reliability.
Data Source
AI summary
A protector-equipped wire harness includes: an electrical wire; a protector that includes a pair of side walls that protrude from a bottom, a slide supporting portion that is formed so as to extend in a first direction X, and a receiver that is provided on a bottom side of the slide supporting portion, and in which the electrical wire can be disposed in a groove that is defined by the bottom and the pair of side walls; and an attachment member that includes a band that can be wound around the electrical wire, and a band lock portion that includes a slidable portion that is supported by the slide supporting portion so as to be slidable in the first direction, the band lock portion keeping the band in a state of being wound around the electrical wire.