Foldable stroller, foldable bassinet, foldable seat, stroller and stroller and luggage system
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Solution Overview
Problem
Existing foldable strollers require multiple operations to transition from an unfolded to a folded state, often necessitating the removal and separate folding of the bassinet or seat and chassis frame, which can be inconvenient, especially when caring for an infant.
Innovation Solution
A foldable stroller design that allows the bassinet or seat to remain mounted on the frame, enabling a single integrated folding process of the wheeled chassis and bassinet/seat without removal, facilitated by a telescopic handle and joint mechanisms that unlock and fold both components simultaneously under gravity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bassinet or seat is removed from the chassis before folding, then the folding process can be simplified, but the user must transport and stow two separate items and perform multiple operations
Solution Approach 1:
The patent merges the bassinet/seat and chassis frame into a single integrated folding operation. The bassinet is designed with side walls that can fold inward, and the chassis frame is configured to fold in coordination with the bassinet, allowing both components to be folded simultaneously while remaining connected, thus eliminating the need to handle them as separate items.
Solution Approach 2:
The patent employs dynamic folding mechanisms where the bassinet and chassis are connected through movable joints and linkages. When the user initiates the folding action, the system dynamically transitions from an unfolded to a folded state through a sequence of coordinated movements, allowing the bassinet and chassis to fold together in a single continuous motion rather than requiring separate static folding operations.
2Ease of operation
If the bassinet is folded first while mounted on the frame, then separate stowage is avoided, but the user still must perform two separate operations
Solution Approach 1:
The patent combines the bassinet folding mechanism with the chassis folding mechanism into an integrated system. The bassinet side walls are connected to the chassis through linkages that coordinate their folding motions, so that when the user performs one folding action, both the bassinet and chassis fold simultaneously in a unified motion, reducing two separate operations into one.
3Ease of operation
If the stroller is designed to fold in a single operation, then user convenience is improved, but the mechanical complexity of the folding mechanism increases
Solution Approach 1:
The patent segments the bassinet structure into modular components, particularly the side walls, which are designed as separate foldable elements connected to the base through hinges and linkages. This segmentation allows each component to fold independently yet coordinatedly, enabling the entire bassinet to collapse into a compact form through a single user action while managing mechanical complexity through modular design.
Solution Approach 2:
The patent employs dynamic folding mechanisms with movable joints, linkages, and spring-loaded components that automatically coordinate the folding of the bassinet and chassis. The system uses dynamic elements such as pivot points and elastic members to ensure smooth, synchronized folding motion, reducing the need for complex manual intervention while maintaining mechanical sophistication.
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 simplifies the folding process to a single-handed operation, reducing the number of steps and ensuring the other hand is free to hold an infant, while achieving a compact folded state without separate handling of multiple parts.
Implementation Method 1
enabling a single integrated folding process of the wheeled chassis and bassinet/seat without removal, facilitated by a telescopic handle and joint mechanisms that unlock and fold both components simultaneously under gravity
Data Source
Figure 1A~1C
Figure 2~2B
Figure 3A~3B
AI summary
The present application discloses a foldable stroller (1), with a wheeled foldable chassis (9), an interchangeable foldable bassinet (7) and foldable seat, a stroller and luggage system and an arrangement of stroller wheels (71, 81) with front wheels (71) mounted via a swivel joint (75).