Foldable bed frame with vertical and crossed bars and bed having same
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Solution Overview
Problem
Existing foldable bed frames with crossed bars often experience instability and damage at pivotal connection points, leading to potential collapse and safety issues when bearing load.
Innovation Solution
A foldable bed frame design featuring left and right longitudinal bars, front, middle, and rear supporting assemblies with pivotally connected vertical and crossed bars, along with links and guides, which distribute load effectively and facilitate easy folding and unfolding, ensuring stability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If crossed bars are used to bear load in existing foldable bed frames, then the bed frame structure is simplified, but the pivotal connection points become damaged or broken leading to instability and safety issues
Solution Approach 1:
The bed frame is divided into multiple supporting assemblies (front, middle, rear) with multiple crossed bar pairs in each assembly. This segmentation distributes the load across numerous connection points rather than concentrating it at single pivotal joints, preventing any one connection point from bearing excessive stress and becoming damaged.
Solution Approach 2:
The patent introduces vertical bars at specific locations between the longitudinal bars and crossed bars, creating localized structural reinforcement at critical load-bearing positions. This local quality enhancement strengthens the pivotal connection points without requiring complete redesign of the entire frame structure.
2Reliability
If multiple supporting assemblies with vertical and crossed bars are added to distribute load, then stability and safety are improved, but device complexity increases
Solution Approach 1:
The supporting assemblies are designed as universal, repeatable units that can be positioned at front, middle, and rear locations. Each assembly contains both vertical bars and crossed bar pairs that serve multiple functions: providing structural support, distributing load, and enabling foldability. This multi-functionality reduces the need for additional specialized components.
Solution Approach 2:
The bed frame employs dynamic linkages with pivotal connections that allow the structure to transition between folded and unfolded states. The crossed bars and vertical bars are connected through pivots that enable controlled movement and folding while maintaining structural integrity during both folded and deployed configurations.
3Ease of operation
If the bed frame is designed to be foldable with multiple bars and assemblies, then portability and ease of storage are improved, but the structure becomes more complex and harder to manufacture
Solution Approach 1:
The bed frame is segmented into modular supporting assemblies that can be manufactured separately and then assembled together. Each assembly contains a complete set of vertical bars, crossed bars, and pivotal connections, allowing for standardized mass production of individual modules that are then combined to form the complete bed frame structure.
Solution Approach 2:
The design uses dynamic pivotal connections throughout the structure, allowing the same components to serve both structural and folding functions. The pivots enable the frame to collapse into a compact configuration for storage and transport, while maintaining full structural strength when deployed, eliminating the need for separate locking mechanisms or complex assembly procedures.
Data Source
AI summary
Disclosed are foldable bed frames and beds. A foldable bed frame includes longitudinal bars, supporting assemblies to support the longitudinal bars, and links to couple one or more supporting assemblies with the longitudinal bars. Each supporting assembly includes vertical and crossed bars. When the beds are unfolded and in use, the vertical bars support the longitudinal bars and bear majority of the load. As such, the bed frames and beds are stable and safe to use.