Foldable Baby Bed Frame with Rotating Rod Mechanism for Easy Assembly

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Solution Overview

Problem

Current baby bed frames are not foldable, making them inconvenient to install, move, and store due to the need for multiple assembly parts.

Innovation Solution

A foldable baby bed frame design featuring connecting portions with rotating rods and snap-in mechanisms allows for easy assembly and disassembly, enabling rapid unfolding and folding without user assembly requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the baby bed frame uses multiple assembly parts to ensure structural stability, then the strength and reliability are improved, but the device complexity and ease of operation deteriorate due to the need for assembly and disassembly

Engineering Contradiction:
Improvestructural stabilityVSAvoidease of assembly and disassembly
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The bed frame is divided into multiple segments including headboard, footboard, side rails, and support legs that can be independently folded and connected. This segmentation allows the structure to maintain stability when assembled while enabling easy folding and portability when disassembled, directly resolving the contradiction between structural strength and ease of operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bed frame incorporates dynamic folding mechanisms with hinges and connecting joints that allow the structure to transition between assembled and folded states. The side rails and support legs are designed to rotate and fold relative to the headboard and footboard, enabling the frame to adapt its configuration from a stable rectangular structure to a compact folded state, thus resolving the contradiction between structural stability and ease of operation.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the baby bed frame is designed as a non-foldable structure to ensure stability, then the reliability is improved, but the ease of operation deteriorates due to difficulty in moving and storing

Engineering Contradiction:
ImprovestabilityVSAvoidease of moving and storing
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The bed frame employs dynamic folding joints and hinges that maintain structural integrity during use while enabling easy folding for transport and storage. The connecting mechanisms between side rails, headboard, and footboard are designed to provide stable connections during assembly but allow controlled folding motion, thus maintaining reliability while improving ease of moving and storing.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support legs and side rails are designed to fold nested within or alongside each other when the bed frame is collapsed. This nesting arrangement reduces the overall volume significantly, making the frame compact for storage and transport while maintaining the full structural dimensions when assembled, thereby resolving the contradiction between stability and ease of moving/storing.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Manufacturing precision

If the baby bed frame requires multiple assembly parts to ensure proper fit and function, then the manufacturing precision is improved, but the device complexity increases making it harder to assemble

Engineering Contradiction:
Improvefit and function of partsVSAvoidnumber of assembly parts
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The bed frame is segmented into standardized modular components with consistent connection interfaces. This segmentation allows for precise manufacturing of individual parts while reducing the overall complexity through standardization, as each segment can be manufactured independently with controlled precision and then assembled using uniform connection mechanisms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple connection functions are merged into integrated hinge and joint assemblies that combine locking, pivoting, and support functions in single components. This merging reduces the total number of separate parts needed while maintaining manufacturing precision, as fewer components mean fewer interfaces that require precise fitting, thus resolving the contradiction between manufacturing precision and device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3440963B1Easy-to-use foldable baby bed frame
Publication Date: 2019.10.09 XIAMEN BABY PRETTY PRODS
  • EP3440963B1 patent drawingFigure 1
  • EP3440963B1 patent drawingFigure 2~3
  • EP3440963B1 patent drawingFigure 4

AI summary

An easy-to-use foldable baby bed frame, including two connecting portions (1), two first support rods (2), two second support rods (3), first rotating rods (4) and second rotating rods (5). The left and right ends of each connecting portion are respectively provided with a left hinge portion (6) and a right hinge portion (7). The inner and outer end surfaces of the left hinge portion are provided with the first left rotating portion (8) and the second left rotating portion (9). The inner and outer end surfaces of the right hinge portion are provided with the first right rotating portion (10) and the second right rotating portion (11). The two ends of the first rotating rods (4) are respectively connected to the left ends of the second left rotating portion (9). The two ends of the second rotating rods (5) are respectively connected to the right ends of the two second right rotating portion (11).