Foldable Bed Frame With Lateral-Rotating Legs to Prevent Collapse
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Solution Overview
Problem
Current foldable bed frames are unstable and prone to shaking or collapsing when a user gets on, leading to potential injury due to legs being foldable only in the longitudinal direction.
Innovation Solution
A foldable bed frame design featuring pivotally connected sub-frames with leg assemblies that rotate laterally, including adjustable and fixed leg components to stabilize the frame and prevent longitudinal shaking, using oval-shaped rotating bars and lateral bars for secure locking and adjustable telescopic tubes for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If legs are made foldable in the longitudinal direction to enable compact storage, then the foldable bed frame achieves space-saving portability, but the bed frame becomes unstable and prone to shaking or collapsing when a user gets on
Solution Approach 1:
The leg assemblies are designed to be dynamically adjustable between folded and extended positions. When in use, the legs extend laterally to provide stability; when storing, they fold toward the bed frame body to reduce space requirements. This dynamic configuration allows the bed frame to adapt its stability characteristics based on operational state.
Solution Approach 2:
The patent transitions from traditional longitudinal folding to lateral folding in a different dimensional orientation. The legs fold toward the bed frame body in the lateral direction rather than along the longitudinal axis, creating a more stable triangular support structure when extended that effectively prevents shaking and collapsing while maintaining compactness when folded.
2Stability of the object's composition
If legs are fixed in position to ensure stability, then the bed frame achieves structural rigidity, but the bed frame loses foldability and portability
Solution Approach 1:
The leg assemblies incorporate pivot connections that enable dynamic adjustment between folded and extended positions. The legs are not permanently fixed but can be positioned as needed - extended laterally for stable use, or folded toward the bed frame body for compact storage and portability.
Solution Approach 2:
The bed frame is divided into modular components including the bed frame body and separate leg assemblies that can be independently positioned. This segmentation allows the legs to be folded toward the body for portability while providing full extension for stability during use, resolving the contradiction between fixed stability and foldable portability.
3Device complexity
If simple foldable leg structures are used to reduce complexity, then manufacturing cost is reduced, but the bed frame becomes unsafe and prone to collapse
Solution Approach 1:
The patent employs lateral folding geometry where legs extend perpendicular to the bed frame body rather than parallel to it. This dimensional change creates a wider base of support and more stable triangular configuration that inherently prevents collapsing and enhances user safety while maintaining relatively simple construction.
Solution Approach 2:
The leg assemblies incorporate pivot connections that enable dynamic adjustment between folded and extended positions. When in use, the legs extend laterally to provide stability; when storing, they fold toward the bed frame body to reduce space requirements. This dynamic configuration allows the bed frame to adapt its stability characteristics based on operational state.
Data Source
AI summary
A foldable bed frame includes first and second sub-frames, and a plurality of leg assemblies. The first and second sub-frames are pivotally connected to each other at their proximal sides. The plurality of leg assemblies includes a first leg assembly disposed at a distal side of the first sub-frame, and a second leg assembly disposed at a distal side of the second sub-frame. Each of the first and second leg assemblies includes left and right legs disposed at left and right sides of the foldable bed frame, respectively, and able to rotate in a lateral direction of the foldable bed frame toward or away from each other.