Foldable sofa bed
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Solution Overview
Problem
Existing foldable sofa beds face challenges in providing ease of conversion between a sofa and a bed while maintaining stability and comfort, and often require complex assembly and disassembly processes.
Innovation Solution
A foldable sofa bed design featuring a foldable bed frame with a first and second folding frame connected by a folding support assembly, including a U-shaped connector, rotary connecting columns, and support legs, which allows for easy conversion and enhanced stability through rotational folding mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional folding mechanisms are used with multiple separate components, then the sofa bed can be converted between sofa and bed modes, but the assembly and disassembly process becomes complex and time-consuming
Solution Approach 1:
The patent integrates the support legs and connecting structures into a unified folding support assembly that moves with the frame. The support legs are combined with the folding mechanism itself, eliminating the need for separate assembly steps. When the frame folds or unfolds, the support legs automatically deploy or retract, converting the sofa to a bed or vice versa without complex manual assembly.
Solution Approach 2:
The folding support assembly serves multiple functions simultaneously: it provides structural support, enables folding motion, and positions the support legs at appropriate heights and angles. The same structural elements that allow the frame to fold also facilitate the deployment of support legs, reducing the number of separate components needed.
2Reliability
If multiple separate support components are used, then the sofa bed can provide adequate support, but the structural integrity and stability during conversion are compromised
Solution Approach 1:
The support legs are integrated into the folding mechanism as a unified assembly rather than separate components. This integration ensures that the support structure moves cohesively with the frame during conversion, maintaining structural integrity. The combined design eliminates gaps and connection points between separate components that could compromise stability.
3Reliability
If the folding mechanism includes comprehensive support structures, then the bed provides comfortable support, but the space utilization and ease of folding are reduced
Solution Approach 1:
The support legs are designed to be dynamic rather than static, automatically adjusting their position and angle as the frame folds or unfolds. During bed mode, the support legs extend to provide full support. During folding to sofa mode, the support legs retract or fold along with the frame, minimizing the space occupied and enabling compact storage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design ensures stable and comfortable conversion between a sofa and a bed, with improved space utilization and simplified operation, as it maintains structural integrity and reduces the need for additional mounting and dismounting of components.
Implementation Method 1
The plurality of rotary connecting columns are configured for fixing the first folding frame and the U-shaped connector, and for fixing the second folding frame and the U-shaped connector
Data Source
AI summary
Embodiments provide a foldable sofa bed. In the embodiments, the foldable sofa bed includes a sofa frame, a foldable bed frame and at least one folding support assembly; the foldable bed frame comprises a first folding frame and a second folding frame, and the at least one folding support assembly is mounted at a location where the first folding frame and the second folding frame are connected; each side of the sofa frame is provided with a rotary connector configured for connecting the first folding frame, and the first folding frame is capable to be unfolded towards a front of the sofa frame, to easily convert the sofa into a bed; the foldable bed frame is in a folded state; the foldable bed frame is in a folded state, the second folding frame is provided over the first folding frame by the folding support assembly.