Foldable Bed Frame With Scissor Bars for Longitudinal Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional foldable beds suffer from longitudinal instability due to the lack of a reinforcing mechanism in their end legs, leading to sway and complexity in structure, making them either unstable or overly complex.
Innovation Solution
A foldable bed design featuring pivotally connected side beams, tilt legs, end bars, and a reinforcing bar system, along with telescoping legs and a secure sleeve mechanism, which allows for easy folding and expansion while maintaining stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional foldable beds use simple end legs without reinforcing mechanisms, then the structure remains simple, but longitudinal stability deteriorates causing sway
Solution Approach 1:
The end bar is divided into multiple segments (first end bar and second end bar) that can move relative to each other through pivotal connections. This segmentation allows the structure to remain simple while achieving stability through coordinated movement of multiple components rather than requiring complex reinforcing mechanisms.
Solution Approach 2:
The patent introduces dynamic elements including tilt legs that can tilt relative to side beams, scissor-like end bars that can expand and contract, and telescoping middle legs. These dynamic components allow the bed frame to adapt its configuration, providing longitudinal stability through controlled movement rather than rigid reinforcement.
2Stability of the object's composition
If conventional foldable beds add reinforcing mechanisms to end legs, then longitudinal stability improves, but device complexity increases
Solution Approach 1:
The end bars serve multiple functions: they provide longitudinal reinforcement, enable folding and expanding operations, and connect multiple components (side beams, tilt legs, middle legs). This multi-functionality eliminates the need for separate reinforcing mechanisms, achieving stability without increasing overall structural complexity.
Solution Approach 2:
The patent employs nested structures where telescoping legs are inserted within middle legs, and multiple end bars are arranged in a scissor-like configuration. This nesting allows multiple functional elements to be compactly integrated, providing reinforcement without proportionally increasing the overall structural complexity.
3Stability of the object's composition
If conventional foldable beds use complex structures to ensure stability, then longitudinal stability improves, but ease of operation deteriorates
Solution Approach 1:
The patent employs dynamic elements including tilt legs that can tilt relative to side beams, scissor-like end bars that can expand and contract, and telescoping middle legs. These dynamic components allow the bed frame to adapt its configuration, providing longitudinal stability through controlled movement rather than rigid reinforcement.
Data Source
AI summary
A stronger foldable bed having a frame and a foldably soft cover attached thereto. The frame has two pairs of side bars each pivotally connected to a central link, a tilt leg pivotally connected to a free end of each side bar, three pairs of scissoring end or middle bars linking the two pairs of side bars, a pair of middle leg each containing a telescoping leg, a reinforcing bar each pivotally connected to one side bar and a sleeve covering on each tilt leg, and a journey limit formed on each tilt leg. The foldable bed is longitudinal stable, simple and strong, without sacrificing the easiness of operation of folding and expanding. The foldable bed has a tent attached thereto with the aid of slide fasteners.