Gear-Driven Foldable Stroller Frame for Compact Storage
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Solution Overview
Problem
Existing collapsible juvenile strollers lack a compact and efficient folding mechanism that allows for easy storage and transportation, requiring more space and complicating storage in vehicles or storage areas.
Innovation Solution
A compact collapsible stroller design featuring a gear-driven foldable frame with a cart and wheels, where the frame can be folded and unfolded using a gear system to transition between a compact storage mode and an expanded use mode, allowing for efficient space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a traditional collapsible stroller design is used, then the stroller can be folded for storage, but it occupies excessive storage space and complicates vehicle storage
Solution Approach 1:
The stroller employs a nested folding mechanism where the seat unit is positioned within the frame structure, and the footrest folds into the seat assembly. This nesting arrangement allows the stroller to collapse into a compact configuration that minimizes storage volume while maintaining structural integrity and ease of operation
Solution Approach 2:
The stroller is divided into separable modules including a removable seat unit, foldable footrest, and collapsible frame sections. This segmentation enables independent folding of each component, reducing overall storage space requirements while simplifying the folding operation through modular collapse sequences
2Volume of moving object
If the stroller frame is made compact for storage, then storage efficiency improves, but the structural stability during use may be compromised
Solution Approach 1:
The stroller frame employs dynamic structural elements including telescopic legs with locking mechanisms and articulated joint connections that adapt between collapsed and expanded states. These dynamic features maintain structural stability during use while enabling compact folding for storage, as the frame transitions smoothly between configurations without compromising integrity
Solution Approach 2:
The frame incorporates pre-positioned support bracing and predetermined fold paths that ensure structural stability is maintained during the transition from collapsed to expanded state. The preliminary arrangement of structural elements prevents instability during deployment while enabling compact storage when folded
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 stroller can be easily collapsed into a compact form for storage, utilizing minimal space while maintaining an expanded configuration for use, addressing the need for a compact and practical solution for caregivers.
Implementation Method 1
a drive gear coupled to the rear gear axle to rotate therewith relative to the frame mount during folding and unfolding of the gear-driven foldable frame... a driven gear arranged to mate with the drive gear of the cart pusher and coupled to the front gear axle to rotate therewith relative to the frame mount during folding and unfolding of the gear-driven foldable frame
Data Source
AI summary
A juvenile stroller includes a mobile base and a juvenile seat mounted on the mobile base. The mobile base includes wheels and a foldable frame carrying the juvenile seat.