Wire Harness Path Restrictor Assembly with Pre-Compressed Elastic Cushion
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Solution Overview
Problem
Conventional wire harnesses for vehicles experience rattling 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 orthogonal to its length, covered by an attaching member with an elastic portion positioned between the restrictor and the exterior tube, preventing rattling by maintaining the restrictor in a compressed state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If path restricting members are attached to restrict wire harness path, then path restriction function is improved, but rattling occurs due to vibration causing damage to attaching portions
Solution Approach 1:
The elastic portion is positioned between the cover and the path restricting member in a compressed state beforehand, creating a cushioning effect that absorbs vibrations before they can cause rattling or damage to the attaching portions. This pre-compressed elastic element acts as a shock absorber that maintains stable attachment while preventing vibration-induced damage.
2Stability of the object's composition
If multiple path restricting members are attached to each other, then path restriction capability is improved, but attaching portions become vulnerable to vibration damage
Solution Approach 1:
The elastic portion pre-compressed between the cover and path restricting member creates a cushioning barrier that protects the attaching portions from vibration damage. This allows multiple path restricting members to be securely attached to each other while the elastic element absorbs harmful vibrations, preventing damage to the attaching portions.
3Ease of manufacture
If path restricting members are attached using conventional methods, then attachment is achieved, but rattling occurs causing potential damage
Solution Approach 1:
The elastic portion is integrated into the cover structure and positioned in a pre-compressed state between the cover and the path restricting member. This maintains the simplicity of the attachment process while the elastic element provides continuous cushioning to prevent rattling and protect the attaching portions from vibration-induced damage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively suppresses rattling between the path restricting members and the attaching members, ensuring the wire harness's path is consistently restricted and preventing potential damage from vibrations.
Implementation Method 1
an elastic portion that is positioned between the cover and at least one of the first path restrictor and the exterior tube in a compressed state
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.