Double folding chair
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Solution Overview
Problem
Existing double folding chairs lack a design that allows for efficient storage and easy transportation while maintaining comfort and functionality, as they often require complex folding mechanisms and do not incorporate features like drink pockets and adjustable seating configurations.
Innovation Solution
A double folding chair design featuring interconnected right and left chairs with unfolding cross braces, mesh panels for airflow and storage, and adjustable hinges allowing for swiveling and parallel configurations, along with drink pockets and reinforcement straps for stability, facilitating easy folding and carrying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If complex folding mechanisms are used to enable folding and storage, then portability is improved, but device complexity increases
Solution Approach 1:
The chair is divided into two separate chair units that can independently fold and store. Each chair has its own folding mechanism with cross braces and hinges, allowing them to be folded separately or together as a pair, reducing overall complexity compared to a single integrated double-chair mechanism
Solution Approach 2:
Two complete chair structures are merged into a single double-chair unit by connecting corresponding feet and joints of both chairs through shared hinges and cross braces. This allows the chairs to fold simultaneously into a compact configuration while maintaining individual chair functionality
2Adaptability or versatility
If features like drink pockets and mesh panels are added to enhance functionality, then user convenience is improved, but device complexity increases
Solution Approach 1:
The mesh panels serve multiple functions: they provide structural support as part of the chair frame, enable airflow for user comfort, and create enclosed spaces that function as drink pockets or storage areas. This multi-functionality adds features without requiring separate dedicated components
Solution Approach 2:
Mesh panels are strategically placed in specific locations (sides and back of chairs) where they provide localized functionality such as airflow channels and pocket formations, rather than requiring complete mesh coverage throughout the entire chair structure
3Volume of moving object
If interconnected design with shared hinges and cross braces is used, then storage efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The connection system is segmented into discrete, standardized components (hinges and cross braces) that can be manufactured independently with standard tolerances. Each component has defined attachment points that simplify alignment during assembly, reducing overall manufacturing precision requirements despite the interconnected nature of the design
Data Source
AI summary
A double folding chair has a left chair with a left chair front inside foot and a left chair front inside joint. A left chair front cross brace supports the a left chair front inside joint above the left chair front inside foot. The left chair front cross brace unfolds to an expanded configuration. A right chair has a right chair front inside foot and a right chair front inside joint. A right chair front cross brace supports the right chair front inside joint above the right chair front inside foot. The right chair front cross brace unfolds to an expanded configuration. An upper hinge connects the right chair front inside joint to the left chair front inside joint. A lower hinge connects the right chair front inside foot to the left chair front inside foot. A middle mesh panel connects the left chair to the right chair.