Foldable Bed Frame Support Assembly to Minimize Folded Length

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Solution Overview

Problem

Current foldable bed frames do not minimize size when folded, resulting in large storage requirements and inconvenience during use and transport.

Innovation Solution

A foldable bed frame design featuring a support assembly with slidably and rotatably coupled link units that allow the frame bars to be disposed within a space between link units when folded, minimizing the frame's length and facilitating easy folding and unfolding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If conventional foldable bed frame designs are used, then the structure is simple and easy to manufacture, but the folded size is large requiring more storage space

Engineering Contradiction:
Improvefolded sizeVSAvoidsupport assembly structure
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The frame bars are nested within the space between the first and second link units when folded, with the proximal end portions of the left and right frame bars disposed inside the link unit space, achieving compact folded dimensions similar to a nested doll structure

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The support assembly is segmented into first and second link units with a space between them, allowing the frame bars to be positioned in the间隙 during folding, thereby reducing the overall folded volume while maintaining structural integrity

Inventive Principle:
Principle #1Segmentation

2Length of moving object

If the frame bars are disposed within the space between link units when folded, then the folded length is minimized, but the mechanism becomes more complex with sliding and rotating couplings

Engineering Contradiction:
Improvefolded lengthVSAvoidcoupling mechanism
Core Design Contradiction:
Length of moving objectVSDevice complexity

Solution Approach 1:

The link units incorporate both sliding and rotating couplings that allow dynamic movement during folding and unfolding operations, enabling the frame bars to be positioned within the link unit space while maintaining ease of operation through combined mechanical motions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sliding and rotating coupling mechanisms are merged into a single integrated support assembly structure, where the first and second link units work together with combined motion types to achieve compact folding while simplifying the overall mechanism compared to separate systems

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10952538B2Support assembly of foldable bed frame and foldable bed frame having same
Publication Date: 2021.03.23 GEXIN XIAMEN SPORTS EQUIP
  • US10952538B2 patent drawing
  • US10952538B2 patent drawing
  • US10952538B2 patent drawing

AI summary

Disclosed are support assemblies and foldable bed frames. A foldable bed frame includes first and second frames, each having left and right frame bars. A foldable bed frame also includes a support assembly having first and second link units. The first link unit is slidably and rotatably coupled with proximal end portions of the left and right frame bars of the first frame, and the second link unit is slidably and rotatably coupled with proximal end portions of the left and right frame bars of the second frame. The first and second link units are fixedly coupled with each other with a space in between. When folded, the proximal end portions of the left and right frame bars of the first and second frames are disposed in the space between the first and second links, minimizing a length of the foldable bed frame when folded.