Multi-Mode Folding Chair with Rotatable Frame and Leg Assemblies
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Solution Overview
Problem
Existing folding chairs lack the ability to efficiently convert between multiple modes for storage and provide different seating options, often compromising on either functionality or ergonomics.
Innovation Solution
A multi-mode folding chair design that incorporates interchangeable supports and a modular structure, allowing it to convert between 'dining', 'lounging', and 'storage' modes by adjusting the position and function of its components, such as the seat, backrest, and leg configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a folding chair is designed for a single mode (dining or lounging), then it can meet the ergonomic requirements for that specific mode, but it cannot provide multiple seating options and requires multiple chairs for different uses
Solution Approach 1:
The chair employs dynamic components including a backrest that can rotate between upright and reclined positions, and legs that can pivot between extended and folded configurations. This allows the chair to transform from a dining chair configuration to a lounging chair configuration, providing multiple seating modes within a single structure without requiring completely separate chairs for each function
Solution Approach 2:
The chair is divided into separable functional modules: the backrest assembly, seat, leg assemblies, and armrests. Each module can be independently positioned or configured. The backrest can be rotated to different angles, and the legs can be folded or extended independently, allowing the chair to adapt to different seating requirements while maintaining structural integrity
2Adaptability or versatility
If a folding chair is designed to convert between multiple modes, then it can provide different seating options, but it may compromise on ergonomic requirements for each specific mode
Solution Approach 1:
The chair provides different local configurations optimized for specific functions: in dining mode, the backrest is positioned upright with legs extended to provide proper posture support for meal consumption; in lounging mode, the backrest rotates to a reclined angle and legs adjust to provide relaxed positioning. Each configuration maintains appropriate ergonomic characteristics for its intended use through localized adjustment of component positions
3Productivity
If a folding chair has a modular structure with interchangeable components, then it can convert between modes efficiently, but it may increase the complexity of assembly and disassembly
Solution Approach 1:
The chair combines multiple functions into a unified structure where the backrest, seat, and leg assemblies work together as an integrated system. The backrest is permanently attached to the seat, and the leg assemblies are connected to the frame, reducing the number of separate components that require assembly while still allowing mode conversion through rotation and folding mechanisms
Data Source
AI summary
A folding chair with multiple modes may include a first frame and a second frame rotatably connected by a joint assembly, a first support arranged in the first frame and a second support arranged in the second frame and six legs. The six legs may include a first pair of legs rotatably attached to the second frame, a second pair of legs rotatably attached to the first frame (e.g., via another joint assembly), and a third pair of legs rotatably attached to the second frame. The folding chair may further include a pair of armrests rotatably attached to the joint assembly. The multiple modes of the folding chair may include a first mode wherein the folding chair is configured as a dining chair, a second mode wherein the folding chair is configured as a lounging chair and a third mode wherein the folding chair is configured for compact storage.