Universal Retaining Clip for Vehicle Seat Frame Adaptability
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Solution Overview
Problem
Existing retaining arrangements for vehicle seats are inefficient and uneconomical due to the need for multiple clip sizes to accommodate varying seat frames, leading to manufacturing variations and tolerance stack-up issues, which result in a poor fit.
Innovation Solution
A retaining arrangement featuring a first and second leg with retention features, such as barbs or teeth, that cooperate to capture the seat frame, allowing for secure attachment across different seat frame configurations and manufacturing variations, with the legs' retention features being differently configured to ensure a wide range of compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple clip sizes are manufactured to accommodate varying seat frames, then adaptability to different seat frame configurations is improved, but manufacturing complexity and inventory requirements increase
Solution Approach 1:
The retaining arrangement is designed as a universal component that can accommodate multiple seat frame configurations through a single design. The clip features a U-shaped body with retention features on both legs that can engage with different frame geometries, eliminating the need for multiple specialized clip sizes while maintaining adaptability across various seat frame types
Solution Approach 2:
The retaining arrangement incorporates flexibility through its U-shaped configuration and material selection, allowing the clip to dynamically adapt to different frame sizes and shapes. The legs can deflect and conform to varying frame geometries during installation, providing a secure fit without requiring precise pre-matching of clip size to frame size
2Manufacturing precision
If clips are configured for use on a single seat frame size, then manufacturing precision requirements are reduced, but the fit quality deteriorates due to tolerance stack-up with variations in manufacturing
Solution Approach 1:
The retaining arrangement uses material selection and geometric design to create a clip that can accommodate manufacturing tolerances. The U-shaped configuration allows for elastic deformation that compensates for tolerance stack-up between the clip and frame, maintaining reliable engagement even when manufacturing variations occur
Solution Approach 2:
The design anticipates manufacturing variations by incorporating built-in compliance through the U-shaped geometry and retention feature configuration. This allows the clip to absorb tolerance stack-up effects before they compromise the fit quality, ensuring reliable attachment across production variations
3Productivity
If a single retaining arrangement design is used across different seat frames, then inventory efficiency and manufacturing cost are improved, but the ability to accommodate frame variations may be compromised
Solution Approach 1:
The retaining arrangement achieves universality through its symmetric U-shaped design with retention features on both legs. This single configuration can engage with various frame types including different flange positions, tab locations, and frame geometries, providing both manufacturing efficiency and adaptability simultaneously
Solution Approach 2:
The clip is divided into functional segments—the U-shaped body providing structural compliance and the retention features on each leg providing engagement points. This segmentation allows each part to perform its specific function while the whole system adapts to different frame configurations, maintaining both simplicity and versatility
Data Source
AI summary
A retaining arrangement for a vehicle seat that has a support structure and a cover material includes a first leg having at least one first retention feature, and a second leg connected to the first leg. The second leg includes a plurality of second retention features positioned along a length of the second leg. The second leg is configured to cooperate with the first leg to capture a portion of the support structure between the first leg and second leg.