Fold-Down Vehicle Seat Linkage for Dual Cargo Configurations
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Solution Overview
Problem
Existing fold-down vehicle seats have limited user friendliness and are not universally adaptable to different cargo space configurations, as the rigid coupling of the backrest and seat part requires an identical folding procedure and occupies significant installation space.
Innovation Solution
A fold-down vehicle seat design featuring a pivotable seat part linked via a front rocker to the vehicle floor and a pivotable backrest mounted on a seat framework section, with a rear rocker that allows for two distinct folded positions, enabling flexible cargo space configuration by transmitting pivot and translational movements between the seat part and backrest.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the backrest and seat part are rigidly coupled, then the folding procedure forms a consistent seat package, but the device complexity increases and the adaptability to different cargo configurations decreases
Solution Approach 1:
The seat is divided into two independently controllable components: the seat part and the backrest. The seat part can be lowered independently via the front rocker mechanism, while the backrest can be folded independently via the rear rocker mechanism. This segmentation allows different folding configurations (first folded position with both components folded, second folded position with only backrest folded) to adapt to various cargo space requirements.
2Volume of moving object
If the seat part is lowered to the lowest position, then the cargo space height is maximized, but the operating comfort decreases due to independent operations
Solution Approach 1:
The coupling between the seat part and backrest is made dynamic rather than rigid. The rear rocker provides a movable coupling that automatically coordinates the backrest folding motion with the seat part position. When the seat part is lowered, the backrest folding motion is automatically adjusted through the rear rocker mechanism, eliminating the need for independent manual operations and improving operating comfort while maintaining cargo space optimization.
Data Source
AI summary
A fold-down vehicle seat is provided having a seat part and a foldable backrest. The seat part is mounted so it is pivotable on the vehicle floor via a front rocker and the backrest is mounted so it is pivotable on a seat framework section using a lower end section. In such a vehicle seat, the seat part and the backrest are transferable into a first and a second folded position to enlarge a cargo area of the vehicle adjoining the vehicle seat, the seat part being coupled using a rear rocker to the backrest, and the seat framework section supporting the backrest situated so it is displaceable on the vehicle floor in the vehicle longitudinal direction.In this way, a fold-down driver seat is provided, which has a high degree of user friendliness and is universally adaptable to various cargo space configurations.