Collapsible Carrycot And A Child Stroller Comprising The Same

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Solution Overview

Problem

Existing child strollers with carrycots face issues of cumbersome folding mechanisms that can damage cloth covers and occupy excessive space due to large opening angles after folding, particularly when folded in a two-section V-shape configuration.

Innovation Solution

A collapsible carrycot design featuring upper and lower frame bodies that are rotatably coupled and foldable via pivoting parts, with collapsible assemblies connecting the frames to allow for a three-section U-shape configuration upon folding, reducing space occupation and minimizing damage to soft components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the carrycot is folded in a two-section V-shape configuration, then the folding mechanism is simpler, but the end of the rod bodies distal to the folding joint has a larger opening angle which occupies more space

Engineering Contradiction:

Improvefolding mechanism complexityVSAvoidspace occupied after folding

Core Design Contradiction:

Device complexityVSVolume of moving object

Solution Approach 1:

The lower frame is divided into three sections (first lower frame body, second lower frame body, and third lower frame body) instead of two sections. This segmentation allows the frame to fold into a compact U-shape configuration where all rod ends are positioned close to the central third lower frame body, significantly reducing the space occupied after folding while maintaining a relatively simple folding mechanism.

Inventive Principle:

Principle #1Segmentation

2Ease of operation

If forced compression is applied to fold the carrycot, then the folding operation is easier, but the cloth cover soft component at the joint may be damaged

Engineering Contradiction:

Improvefolding operation easeVSAvoiddamage to cloth cover

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The lower frame is segmented into three bodies that fold independently around the third lower frame body. This segmentation distributes the folding forces across multiple joints and prevents concentrated stress on any single cloth cover attachment point, allowing easier folding without damaging the soft components.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of compressing the entire carrycot from the ends toward the center (which would concentrate force on the cloth cover), the folding mechanism allows the frame bodies to rotate outward from the central third lower frame body. This inverted folding approach reduces stress concentration on the cloth cover soft components while maintaining ease of operation.

Inventive Principle:

Principle #13The other way round (Inversion)

3Device complexity

If the upper frame bodies are rotatably coupled by a pivoting part, then the folding mechanism is simpler, but the cloth cover may be damaged during forced compression

Engineering Contradiction:

Improveframe coupling mechanismVSAvoiddamage to cloth cover

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The upper frame bodies are rotatably coupled by a pivoting part that enables natural rotation-based folding rather than forced compression. This inverted approach from traditional compression folding allows the frame to fold smoothly without concentrating stress on the cloth cover, maintaining both simplicity and protection of soft components.

Inventive Principle:

Principle #13The other way round (Inversion)

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 efficient space-saving folding with reduced risk of damage to cloth covers, maintaining stability and simplicity while facilitating easy unfolding and folding operations.

Implementation Method 1

an upper frame having a first upper frame body and a second upper frame body, the first and second upper frame bodies being rotatably coupled to one another by an upper frame pivoting part

Methodology Applied

Scientific EffectRotation:

Implementation Method 2

the first and second upper frame bodies are rotatably coupled to one another by an upper frame pivoting part

Methodology Applied

Scientific EffectHinge mechanism: Hinge

Data Source

PatentUS20260076489A1Collapsible Carrycot And A Child Stroller Comprising The Same

Publication Date: 2026.03.19 ZHEJIANG JINHUA SNOWBABY BABY ITEMS MANUFACTURING CO LTD

AI summary

A collapsible carrycot such as to carry children or other persons or materials is provided. Aspects provide a compact form factor that is space efficient. The carrycot generally has an upper frame and a lower frame, each of which are composed of a plurality of frame bodies. The frame bodies are articulated and rotatably pivoting at certain pivoting parts and articulatable linkages formed of connecting rods and supporting rods to permit easy and safe use. The carrycot can further be part of a stroller apparatus into which the collapsible carrycot is secured.