Detachable Playard Handrail Joint for Compact Flat-Pack Assembly

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Solution Overview

Problem

Conventional playard frames have complex connecting structures for handrails and columns, making assembly inconvenient and occupying excessive space for packaging, storage, and transportation.

Innovation Solution

A handrail device with a simple engaging structure featuring a slot and rib mechanism for easy detachment and reconnection, combined with a resilient component for stable assembly, allowing for compact packaging and easy transportation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional connecting structure is used to connect handrails and columns, then the connection is stable, but the assembly process becomes complicated and time-consuming

Engineering Contradiction:
Improveconnection stabilityVSAvoidassembly convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The connecting structure is divided into separate components: a connecting component with an engaging slot and a handrail with an engaging component. This segmentation allows for simpler, more modular assembly while maintaining connection stability through the dedicated engaging structures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The engaging structure acts as an intermediary mechanism between the handrail and connecting component. The engaging slot and engaging component work together as a mediator to simplify the connection process while ensuring stable attachment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a conventional connecting structure is used, then the connection is secure, but the package size increases and transportation becomes difficult

Engineering Contradiction:
Improveconnection securityVSAvoidpackage size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

By segmenting the playard frame into separate components (handrails, connecting components, columns) with integrated engaging structures, the design allows for compact packaging while maintaining secure connections during use.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The engaging structure merges the connection function and the structural component into a single integrated design, eliminating the need for separate fastening mechanisms and reducing overall package volume.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If a simple engaging structure is used, then assembly is easy, but the connection stability may be compromised

Engineering Contradiction:
Improveassembly easeVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The engaging structure is segmented into complementary parts (engaging slot and engaging component) that work together to provide both simplicity in assembly and stability in connection through their interlocking geometry.

Inventive Principle:
Principle #1Segmentation

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 solution enables easy assembly and disassembly of the playard frame, reducing packaging size and facilitating convenient storage and transportation while maintaining a safe and stable structure.

Implementation Method 1

a resilient component is disposed on the engaging component, and the engaging protrusion is disposed on the resilient component

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2820977B1Playard frame and handrail device thereof
Publication Date: 2016.04.06 BP CHILDRENS PRODUCTS HK CO LTD
  • EP2820977B1 patent drawingFigure 1
  • EP2820977B1 patent drawingFigure 2
  • EP2820977B1 patent drawingFigure 3

AI summary

The present invention is to disclose a handrail device (1) adapted for a playard frame (100), and the handrail device (1) includes a handrail (11), a connecting component (12), and an engaging structure (4) for detachably connecting the handrail (11) and the connecting component (12). The handrail (11) is detachably connected to the connecting component (12) and is assembled easily. Hence, it is beneficial to decrease a size of a package for packing the handrail device (1) before being assembled, and the handrail device (1) can be transported or stored easily.