Folding Hook Groove Structure for Safe Baby Carriage Collapse

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Solution Overview

Problem

Existing baby carriages face challenges in achieving safe, reliable, and easy-to-operate collapsibility through their pivot joints and folding hook structures, which are crucial for enhancing portability while ensuring safety for infants.

Innovation Solution

A folding hook structure comprising a rotating disk with a folding hook groove and a folding hook that moves between locked and released positions, along with a shell and sliding member to facilitate the rotation and locking of carriage frames, ensuring secure and easy operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the carriage frame is designed to be collapsible to reduce overall volume, then portability is improved, but the complexity of the pivot joint and folding hook structure increases

Engineering Contradiction:

Improveoverall volume of baby carriageVSAvoidcomplexity of pivot joint and folding hook structure

Core Design Contradiction:

Volume of moving objectVSDevice complexity

Solution Approach 1:

The folding hook structure is divided into distinct functional components: a rotating disk with circumferential and radial sections, a folding hook that moves between locked and released positions, and a trigger mechanism. This segmentation allows each component to perform its specific function independently, simplifying the overall design while achieving collapsibility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The pivot joint incorporates a rotating disk that can dynamically transition between different rotational positions (circumferential and radial sections). This dynamic capability allows the carriage frame to transform between extended and collapsed states without requiring complex fixed structures, reducing overall device complexity.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the folding hook structure is designed to be easy to operate, then ease of operation is improved, but the reliability of the locking mechanism may be compromised

Engineering Contradiction:

Improveease of operation of folding hook structureVSAvoidreliability of locking mechanism

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The folding hook structure incorporates a trigger mechanism that automatically engages and disengages the locking position through simple user input. When the trigger is actuated, it causes the folding hook to move between locked and released positions automatically, providing ease of operation while maintaining reliability through the self-service nature of the mechanism.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The rotating disk provides tactile feedback through its circumferential and radial sections, allowing the user to feel when the folding hook has securely locked into position. This feedback mechanism ensures reliable locking while requiring minimal operational force, balancing ease of operation with locking reliability.

Inventive Principle:

Principle #23Feedback

3Object-affected harmful factors

If the folding hook structure ensures safety for infants, then safety is improved, but the device complexity increases

Engineering Contradiction:

Improvesafety for infantsVSAvoidcomplexity of folding hook structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The folding hook structure is designed with inherent safety features built into its basic mechanism. The trigger-operated locking system prevents accidental collapse by requiring deliberate user action, and the rotating disk's geometric design ensures that the carriage frame can only be collapsed when properly unlocked. This prior cushioning approach provides infant safety without adding significant complexity to the overall structure.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS20250340236A1Folding hook structure, carriage frame and baby carriage

Publication Date: 2025.11.06 WONDERLAND SWITZERLAND AG

AI summary

A folding hook structure for arranging a first object and a second object to be relatively rotatable between an extended state and a collapsed state, the folding hook structure comprising: a rotating disk having a folding hook groove disposed on a disk surface thereof, the folding hook groove including: a circumferential section extending in a circumferential direction of the rotating disk; and a radial section extending from the circumferential section along a radial direction of the rotating disk; a folding hook inserted in the folding hook groove and movable between a locked position and a released position along the radial direction; wherein the first object and the second object are in the extended state when the folding hook is in the circumferential section; and the first object and the second object are in the collapsed state when the folding hook is in the radial section.