Fixed Structure Seat Slouch Adjustment Mechanism
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Solution Overview
Problem
Conventional vehicle seats have limited adjustment ranges and lack advanced mechanisms for comfortable positioning, particularly in reclining and slouching adjustments, which restricts occupant comfort and flexibility.
Innovation Solution
A vehicle seat with a fixed frame and movable structure that incorporates sliding members, pivotable connections, and closed chain linkages, allowing for unconventional 'slouch' adjustments and combining with conventional mechanisms for forward and backward movement, enabling both reclining and upright positions while maintaining a consistent angle relative to the fixed frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional adjustment mechanisms are used in vehicle seats, then the seat structure remains simple, but the adjustment range and comfort are limited
Solution Approach 1:
The seat is divided into multiple independent adjustment mechanisms: a slide mechanism for forward-backward movement, a recline mechanism for backrest angle adjustment, and a slouch mechanism for additional backrest positioning. Each mechanism operates independently to provide comprehensive adjustment range without requiring complete structural redesign.
Solution Approach 2:
The patent implements nested adjustment mechanisms where the slouch mechanism is integrated within the recline mechanism structure. The slouch backrest can adjust within the range of the main recline mechanism, creating a nested configuration that expands functionality while maintaining structural compactness.
2Ease of operation
If basic seat adjustment functionality is provided, then the device complexity remains low, but the occupant comfort and flexibility are restricted
Solution Approach 1:
The seat incorporates dynamic adjustment capabilities allowing the backrest to move through multiple positions including upright, reclined, and slouched configurations. The mechanisms enable smooth transitions between positions and allow occupants to achieve desired comfort levels through sequential adjustments.
Solution Approach 2:
The adjustment mechanisms serve multiple functions: the slide mechanism provides both positioning and stability, the recline mechanism offers primary backrest angle adjustment, and the slouch mechanism provides secondary positioning. This multi-functionality enhances comfort while sharing common structural elements.
Data Source
AI summary
A vehicle seat includes a moveable structure supported by a fixed frame. The moveable structure includes a bottom portion configured to slide forward and rearward relative to the fixed frame, a back portion connected to the bottom portion and configured to both pivot and slide relative to the fixed frame, and an upper portion that, in some embodiments, is configured to rotate relative to the back portion.