Wire Harness Attachment Structure to Suppress Routing Rattle
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Solution Overview
Problem
Conventional wire harnesses experience rattling at attachment sites due to vibrations, leading to potential damage when route-regulating members are attached, which can cause instability in the routing of the wire harness.
Innovation Solution
A wire harness design featuring a first route-regulating member with an insertion port and an attachment member comprising a receiver and lid with overlapping fixing portions and engagement protrusions, which are attached through sliding movement along the lengthwise direction, inhibiting separation and rattling between the components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If route-regulating members are attached to regulate wire harness routing, then routing stability is improved, but rattling occurs at attachment sites due to vibration
Solution Approach 1:
The attachment member is divided into a receiver and a lid that can be assembled separately. The receiver is attached to the route-regulating member first, then the lid is attached to the receiver to form a complete attachment structure. This segmentation allows for easier installation while ensuring stable routing without rattling.
Solution Approach 2:
The route-regulating member is inserted into the receiver, and the lid is then attached to cover the receiver. This nested structure ensures that the route-regulating member is securely held within the attachment member, preventing rattling while maintaining routing stability.
2Reliability
If fixing members are added to prevent separation, then attachment reliability is improved, but device complexity increases
Solution Approach 1:
The fixing members are integrated into the lid structure, and the engagement protrusions are formed as part of the receiver geometry. This merging of components reduces the number of separate parts while maintaining high attachment reliability through the interlocking fixing members and engagement protrusions.
Solution Approach 2:
The fixing members and engagement protrusions are designed to automatically engage and lock the route-regulating member in place during assembly. This self-service mechanism ensures reliable attachment without requiring additional fastening operations or complex assembly procedures.
Data Source
AI summary
A wire harness including: a wire harness main body including an electric wire and an outer cover covering an outer circumference of the electric wire; a first route regulator that is attached to an outer circumference of the outer cover and regulates a route of the wire harness main body; and an attachment that is attached to a portion of an outer circumference of the first route regulator in a lengthwise direction of the first route regulator.