Multi Child Stroller Four-Bar Linkage Folding Mechanism
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Solution Overview
Problem
Conventional double child strollers are either bulky when folded, compromising storage convenience, or they sacrifice seat space and basket capacity for compactness, and do not provide a raised seat for younger children.
Innovation Solution
A multi-child stroller design featuring a stroller frame with a four-bar linkage mechanism, allowing the seats to be folded and unfolded simultaneously, with a sliding and rotatable connection system that maintains seat space in service mode and minimizes size in folding mode, incorporating a stand platform for versatile use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional double child stroller structural components are assembled in complicated manner, then the stroller can provide sufficient seat space and basket storage, but the folded size becomes large and storage convenience deteriorates
Solution Approach 1:
The stroller is divided into modular components including detachable seat units (first seat and second seat), separable frame sections, and independent basket modules. This segmentation allows each component to be folded or removed independently, significantly reducing the overall folded size while maintaining sufficient seat space and basket storage when assembled.
Solution Approach 2:
The stroller incorporates dynamic folding mechanisms with movable connections between frame members, allowing the structure to transition between expanded service mode and compact storage mode. The drivable member and linkages enable smooth transformation while maintaining structural integrity, improving storage convenience without sacrificing seat space.
2Ease of operation
If conventional double child stroller is designed for compact folding, then folded size is reduced, but seat space and basket storage are minimized
Solution Approach 1:
The stroller employs detachable seat units that can be removed or reconfigured. The first seat and second seat are independently mounted on the frame, allowing them to provide adequate seat space when assembled while enabling compact folding when detached or folded along with the frame.
Solution Approach 2:
The stroller frame and seat structure are designed with multi-functionality, where the same components serve both as support structures for adequate seat space during service and as foldable elements for compact storage. The basket is also designed to collapse with the frame, providing storage capacity when assembled and minimizing volume when folded.
3Adaptability or versatility
If conventional double child stroller lacks raised seat configuration, then structural complexity is reduced, but usability for younger children deteriorates
Solution Approach 1:
The stroller incorporates adjustable seat mechanisms that allow the seat position to be dynamically changed. The first seat and second seat can be positioned at different heights and angles through movable connections and adjustment mechanisms, providing raised seat options for younger children while maintaining reasonable structural complexity through standardized connection components.
Data Source
AI summary
A multi child stroller includes a stroller frame, a first seat and a second seat. The stroller frame includes a front section member, a rear section member, a driving member and a handle member. The driving member is movably connected to the rear section member. An end of the handle member is rotatably connected to the front section member, and a segment of the handle member adjacent to the foresaid end is rotatably connected to the rear section member. When the front section member and the handle member are rotated relative to each other, the driving member is rotated relative to the rear section member, the first link is utilized to rotate the first seat back relative to the first seat body, and the second seat body is utilized to rotate the second seat back relative to the second link.