Collapsible Bed Frame with Rotatable Bar Units for Tool-Free Folding

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Solution Overview

Problem

Existing foldable bed frames are cumbersome to assemble and disassemble, and their components can be easily lost or difficult to handle during shipping and storage due to the need for bolts and complex reassembly processes.

Innovation Solution

A collapsible bed frame design featuring interconnected longitudinal and lateral bar units that rotate and connect through a connecting piece, allowing the frame to fold without disassembly, with receptacles for inner lateral bars to facilitate easy installation and storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If bed frame components are connected by bolts for foldability, then the frame can be disassembled and folded, but the components become difficult to handle during shipping and storage, and reassembly is time-consuming

Engineering Contradiction:

ImprovefoldabilityVSAvoidhandling ease

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The bed frame is divided into modular bar units (first outer lateral bar unit, second outer lateral bar unit, first longitudinal bar unit, second longitudinal bar unit, third longitudinal bar unit) that can be independently connected and disconnected. Each unit is designed as a separate component that can be easily handled during shipping and storage, yet quickly reconnected through simple connection mechanisms at the bar ends.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If bed frame components are disconnected for folding, then the frame can be folded compactly, but separated components may be displaced or lost

Engineering Contradiction:

ImprovefoldabilityVSAvoidcomponent retention

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The connection mechanisms are integrated directly into the bar units themselves, with connecting structures built into the ends of each bar unit. This merging of connection functions into the structural components ensures that when components are separated for folding, the connection interfaces remain attached to the bars, preventing displacement or loss of connecting parts.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If bed frame components are reassembled after disassembly, then the frame can be reused, but the reassembly process is time-consuming

Engineering Contradiction:

ImprovereusabilityVSAvoidassembly time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The bar units are pre-configured with connection mechanisms at their ends during manufacturing. The connecting structures are prepared in advance with alignment features and engagement interfaces, so that during reassembly, the bars can be quickly connected without requiring complex alignment or additional fastening steps. This preliminary preparation of connection interfaces significantly reduces assembly time.

Inventive Principle:

Principle #10Preliminary action

4Adaptability or versatility

If traditional foldable bed frames are used, then folding is possible, but the frames occupy majority of space and are cumbersome

Engineering Contradiction:

ImprovefoldabilityVSAvoidstorage volume

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The bar units are designed to nest within each other when the frame is folded. The first longitudinal bar unit, second longitudinal bar unit, and third longitudinal bar unit are arranged to overlap and fit within the space occupied by the outer lateral bar units, creating a compact nested configuration that minimizes storage volume while maintaining full foldability.

Inventive Principle:

Principle #7Nested doll (Nesting)

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 enables the bed frame to contract into a compact size without tools, reducing storage space requirements and simplifying handling during transportation and assembly, while maintaining stability and ease of use.

Implementation Method 1

a second end of the first longitudinal bar unit is rotatably connected with a first end of the second longitudinal bar unit; a second end of the second longitudinal bar unit is rotatably connected with a first end of the third longitudinal bar unit

Methodology Applied

Scientific EffectRotation:

Data Source

PatentUS11076703B2Collapsible peripheral frame and bed frame having same

Publication Date: 2021.08.03 GEXIN XIAMEN SPORTS EQUIP

AI summary

A collapsible peripheral frame includes first and second outer lateral bar units, and first and second longitudinal bar assemblies. Each of first and second longitudinal bar assemblies comprises first, second and third longitudinal bar units rotatably connected with each other at their adjacent ends. The first outer lateral bar unit has a first end connected with an end of the first longitudinal bar unit in the first longitudinal bar assembly and a second end rotatably connected with an end of the third longitudinal bar unit in the second longitudinal bar assembly. The second outer lateral bar unit has a first end rotatably connected with an end of the third longitudinal bar unit in the first longitudinal bar assembly and a second end connected with an end of the first longitudinal bar unit in the second longitudinal bar assembly.