Vehicle Seat Wire Harness Assembly With Rigid Anti-Snag Case
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Solution Overview
Problem
Existing wire harness casings fail to protect cables when they are extended from the casing, as they are susceptible to distortion and snagging by surrounding objects, particularly in moving assemblies.
Innovation Solution
A wire harness assembly with a rigid case surrounding the distal end of the cable, allowing the cable to move between retracted and extended positions, with the rigid case extending further out of the housing in the extended position to prevent snagging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cable is extended from the casing for movement between retracted and extended positions, then the cable's mobility and range of motion are improved, but the cable becomes susceptible to distortion and snagging by surrounding objects
Solution Approach 1:
A rigid protective case is nested around the flexible cable, providing structural protection while allowing the cable to move. The rigid case acts as an outer shell that prevents snagging and distortion, while the cable maintains its flexibility and mobility within this protective enclosure.
Solution Approach 2:
The cable is designed with a flexible outer casing or sheath that allows it to bend and move between retracted and extended positions. This flexible shell protects the internal conductors while maintaining the cable's ability to deform and accommodate movement in the wire harness assembly.
2Strength
If a rigid case surrounds the cable to prevent distortion, then the cable's structural integrity is improved, but the cable loses flexibility and becomes difficult to retract and extend
Solution Approach 1:
The protective structure is divided into segments: a rigid outer case that provides structural integrity and prevents distortion, and a flexible inner cable that maintains mobility. This segmentation allows each component to fulfill its specific function - the rigid case for protection and the flexible cable for movement.
Solution Approach 2:
The wire harness assembly uses composite construction combining rigid protective material (such as metal or hard plastic) for the outer case and flexible material (such as rubber or polymer) for the cable sheath. This composite approach allows the assembly to simultaneously achieve structural integrity and flexibility.
Data Source
AI summary
A wire harness assembly of a vehicle seat secured to a vehicle floor includes a wire harness housing fixed to a stationary portion of the vehicle seat and a cable including a proximal end portion, an intermediate portion, and a distal end portion. The intermediate portion of the cable is received within the wire harness housing. The wire harness assembly also includes a rigid case surrounding the distal end portion of the cable. The cable movable between a retracted position and an extended position; in the retracted position the rigid case is at least partially received within the wire harness housing and in the extended position the rigid case extends farther out of the wire harness housing than in the retracted position.