Wire Harness Path Restrictor Attachment for Rattle Suppression
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Solution Overview
Problem
Conventional wire harnesses experience rattling issues due to vibrations, which can lead to damage at the attaching portions, especially when multiple path restricting members are attached, causing instability in the wire harness's path.
Innovation Solution
A wire harness design featuring a first path restrictor with an insertion port and an attaching member with a receiver and lid, where the lid is slidable along a rail to securely cover the path restrictor, preventing detachment and thus suppressing rattling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If path restricting members are attached to the wire harness, then the path stability is improved, but rattling occurs due to vibration causing damage to attaching portions
Solution Approach 1:
The lid is designed to rotate about a hinge portion, transitioning from an open state during assembly to a closed state for securing. This dynamic mechanism allows the attaching structure to adapt between installation and operation phases, providing secure attachment while maintaining path stability.
Solution Approach 2:
The attaching member is divided into separate components: a body portion with the hinge, a lid for covering, and a claw portion for engagement. This segmentation allows each component to perform its specific function independently, with the claw engaging the path restrictor, the hinge enabling controlled movement, and the lid providing protective coverage.
2Stability of the object's composition
If multiple path restricting members are attached to restrict the wire harness path, then path control is improved, but rattling between attaching portions increases
Solution Approach 1:
The lid acts as a flexible covering element that can be positioned in different states. When closed, it provides a shell-like protection over the attaching portion, reducing rattling while allowing the system to maintain path control through multiple attached restrictors.
Solution Approach 2:
The hinge portion serves as an intermediary mechanism between the lid and body, enabling controlled connection and disconnection. This intermediary allows the lid to engage securely during operation (reducing rattling) while facilitating easy assembly and maintenance.
3Reliability
If the attaching portion is designed to be secure against detachment, then reliability is improved, but the structure becomes more complex
Solution Approach 1:
The hinge portion and claw portion are integrated into a single attaching member structure, combining the rotation mechanism and engagement feature into one component. This merging reduces the number of separate parts while maintaining secure attachment functionality.
Solution Approach 2:
The claw portion automatically engages with the path restricting member when the lid is closed, providing self-securing functionality. The elastic deformation of the claw creates automatic locking without requiring additional fastening mechanisms, simplifying the overall structure while ensuring reliable attachment.
Data Source
AI summary
A wire harness including: a wire harness main body that includes an electric wire and an exterior tube that covers an outer circumferential surface of the electric wire; a first path restrictor that is attached to an outer circumferential surface of the exterior tube and is configured to restrict a path of the wire harness main body; and an attachment that is attached to an outer circumferential surface of a portion of the first path restrictor in a lengthwise direction thereof.