Modular Movable Headrest Structure for Easier Seat Assembly
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Solution Overview
Problem
Current headrest height-adjustable mechanisms without a headrest rod are complex, have many parts, and occupy large space, making the assembly and disassembly of seats inconvenient and complicated.
Innovation Solution
A movable headrest module with a first and second part, where the second part moves relative to the first, driven by a driving part, and includes a mounting interface for easy attachment to a seat frame, simplifying the structure and reducing the number of parts, facilitating assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a height-adjustable headrest mechanism is implemented without a headrest rod, then the structure becomes complex with many parts and large space occupation, but the headrest height adjustment functionality is achieved
Solution Approach 1:
The headrest assembly is divided into a fixed part (integrated with seat back) and a movable part (headrest cushion), connected through a guide structure that allows vertical movement. This segmentation enables height adjustment while simplifying the overall structure by eliminating the need for a traditional headrest rod and complex integrated mechanisms.
2Adaptability or versatility
If a height-adjustable headrest mechanism is implemented without a headrest rod, then the structure becomes complex with many parts and large space occupation, but the headrest height adjustment functionality is achieved
Solution Approach 1:
By separating the headrest into fixed and movable portions connected through a compact guide structure, the design achieves height adjustment functionality while minimizing space occupation. The guide structure allows vertical movement within a compact footprint, eliminating the need for a long headrest rod that would occupy excessive space.
3Adaptability or versatility
If a complex headrest mechanism with many parts is used, then headrest height adjustment is achieved, but the assembly and disassembly process becomes complicated
Solution Approach 1:
The headrest is designed as a modular assembly with a fixed part integrated to the seat back and a movable part that can be easily attached and detached. The guide structure provides natural guidance for assembly, allowing workers to simply align and secure the movable headrest cushion to the fixed portion, significantly simplifying the assembly and disassembly process compared to complex integrated mechanisms.
4Ease of manufacture
If a simplified headrest structure with fewer parts is used, then assembly and disassembly become easier, but the headrest height adjustment functionality may be compromised
Solution Approach 1:
The segmented design with fixed and movable parts connected through a guide structure maintains full height adjustment functionality while simplifying the overall structure. The guide structure provides constrained movement paths that enable smooth vertical adjustment without requiring complex mechanisms, achieving both ease of assembly/disassembly and effective height adaptability.
Data Source
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AI summary
The present disclosure provides a movable headrest module, a seat, a vehicle and a method of disassembling and assembling a seat. The movable headrest module (100) comprises a first part (1) and a second part (2), and the second part (2) is able to move relative to the first part (1), and the second part (2) comprises a moving component (21) supported by the first part (1) and a headrest component (22) connected to the moving component (21), wherein the moving component (21) is able to be driven by a driving part (3) to move relative to the first part (1), and to drive the headrest component (22) to move relative to the first part (1).The first part (1) has at least a first connecting interface (11) and a second connecting interface (12), and the first connecting interface (11) and the first part (1) support the moving component (21) through the first connecting interface (11), and the second connecting interface (12) provides a mounting interface (13) to mount the movable headrest module (100) to a seat frame (200).