Folding chair device
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Solution Overview
Problem
Existing folding chair devices are inconvenient to operate and have complex structures, leading to high production costs, which do not meet user needs or production requirements.
Innovation Solution
A folding chair device with a simple structure that includes a seat support assembly, backrest assembly, leg rest assembly, backrest driving device, connecting rod assembly, and leg rest driving device, allowing for automatic adjustment of inclination angles through a linkage mechanism and power transmission assembly, reducing production costs and enhancing user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual folding mechanism is used, then device complexity is reduced, but ease of operation deteriorates
Solution Approach 1:
The folding chair device uses a driving device that enables automatic folding and unfolding operations. The system self-adjusts the inclination angles of the seat support assembly, backrest assembly, and leg rest assembly through automated driving mechanisms, eliminating the need for manual operation while maintaining structural efficiency.
Solution Approach 2:
The driving device serves multiple functions simultaneously: it controls the folding/unfolding of the seat support assembly, adjusts the backrest inclination angle, and regulates the leg rest inclination angle. This multi-functionality reduces the need for separate mechanisms for each adjustment, thereby managing complexity while improving operational ease.
2Ease of operation
If electric folding mechanism is used, then ease of operation is improved, but device complexity and production cost worsen
Solution Approach 1:
The patent combines the driving mechanisms for seat folding, backrest adjustment, and leg rest regulation into an integrated driving device system. By merging these functions into a coordinated mechanism rather than separate electric motors for each component, the overall device complexity is reduced while maintaining automated operation capabilities.
Solution Approach 2:
The driving device automatically controls the folding and unfolding operations without requiring complex user interfaces or multiple independent control systems. The system self-regulates the movement of various assemblies through a unified driving mechanism, simplifying the overall control architecture and reducing production costs.
3Adaptability or versatility
If multiple adjustable assemblies are included, then adaptability is improved, but device complexity worsens
Solution Approach 1:
The driving device is designed to perform multiple adjustment functions simultaneously: it controls the folding of the seat support assembly, adjusts the backrest inclination angle to multiple positions, and regulates the leg rest inclination angle. This universal driving mechanism provides high adaptability for different user needs while avoiding the complexity of separate control systems for each function.
Solution Approach 2:
The patent implements dynamic adjustment capabilities where the inclination angles of the backrest and leg rest can be changed during use. The driving device enables these assemblies to transition between fixed and adjustable states, providing adaptability for different user positions and comfort requirements without permanently complex structures.
Data Source
AI summary
A folding chair device of the present invention includes a seat support assembly, a backrest assembly, a leg rest assembly, a backrest driving device, a connecting rod assembly and a leg rest driving device. A bottom of the backrest assembly is pivotally connected with the seat support assembly, the backrest driving device is pivotally connected with the backrest assembly; the leg rest assembly is pivotally connected with the seat support assembly, the leg rest driving device is mounted on the seat support assembly, and the connecting rod assembly is connected with a driving end of the leg rest driving device and pivotally connected with the leg rest assembly. The inclination angle of multiple assemblies of the device can be adjusted, and the device has a simple structure and low production cost, which is suitable for popularization in industry and daily life.