Adjustable support for a seat system
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Solution Overview
Problem
Conventional seat cushion length extenders are costly, complex, and do not adequately accommodate varying occupant sizes, failing to provide optimal support and comfort, especially for taller individuals, and often interfere with smaller occupants' leg space.
Innovation Solution
An adjustable seat support system with a flexible main member and drive mechanism, utilizing a rack and pinion system, allows for selective extension and retraction to accommodate different occupant sizes, integrating seamlessly with the seat design and reducing complexity and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional seat cushion length extenders are used, then middle portion support is provided, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the cushion extender function with the existing seat base substrate into a single integrated component. The flexible main member is formed as part of the seat base substrate itself, eliminating the need for separate extender components and reducing overall device complexity while maintaining the ability to provide extended cushion support.
Solution Approach 2:
The flexible main member serves multiple functions: it provides structural support as part of the seat base substrate, acts as the cushion extender mechanism, and integrates with the drive system. This multi-functionality reduces the number of separate components needed and simplifies the overall device architecture.
2Adaptability or versatility
If conventional seat cushion length extenders are used, then middle portion extension is achieved, but manufacturing cost increases
Solution Approach 1:
The extender functionality is merged into the seat base substrate manufacturing process. By forming the flexible main member as an integrated part of the substrate rather than as a separate component, the patent reduces part count, simplifies assembly, and lowers manufacturing costs while maintaining cushion extension capability.
3Adaptability or versatility
If conventional seat cushion length extenders are used, then middle portion support is provided, but full seat width comfort is not achieved
Solution Approach 1:
The patent employs a flexible main member that can dynamically adjust its configuration. The flexible material allows the cushion support surface to adapt its shape and extent to accommodate different occupant sizes and positions, providing full seat width comfort rather than just middle portion support.
4Adaptability or versatility
If complex cushion extender systems are used, then cushion support is provided, but integrated appearance is compromised
Solution Approach 1:
By merging the cushion extender functionality into the seat base substrate itself, the patent creates a seamless, integrated appearance. The flexible main member is formed as part of the substrate and can be trimmed to match the seat contours, eliminating visible seams or separate components that would compromise the aesthetic appearance.
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 system provides full seat width comfort and support for varying sizes, minimizing manufacturing complexity and cost while maintaining an integrated appearance, enhancing occupant comfort and reducing vehicle space and mass.
Implementation Method 1
The drive mechanism may have a lower slide and an upper slide, wherein the upper slide selectively moves with respect to the fixed lower slide via a rack and pinion system.
Implementation Method 2
at least one spring housing may be attached to the trim ring, wherein the at least one spring housing may be adapted to hold a portion of a constant force spring therein
Data Source
AI summary
In one embodiment, a seat may have a seat base substrate that has a flexible main member. The seat may also have a drive mechanism that has a lower slide and an upper slide. The upper slide may selectively move with respect to the fixed lower slide via a rack and pinion system. The seat may also have a pusher releasably attached to the upper slide. The pusher may contact the flexible main member. The seat may also have a trim ring attached to the lower slide.