Multi-Child Stroller Seat Folding for Compact Storage
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Solution Overview
Problem
Conventional double child strollers have large folded sizes, inconvenient storage, minimal seating, and lack a raised seat for younger children, while compactly foldable strollers compromise on seat size and basket storage.
Innovation Solution
A multi-child stroller with a stroller frame that folds and unfolds, featuring a first seat with a sliding slot portion and rotatable seat back positioning member, allowing multiple unfolding modes and easy attachment of an infant car seat, while maintaining a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional double child stroller structure is used, then seating capacity is provided, but folded size becomes large and storage convenience deteriorates
Solution Approach 1:
The stroller frame is divided into two foldable sections that can be collapsed relative to each other, allowing the overall structure to be segmented into compact form for storage while maintaining full seating capacity when unfolded
Solution Approach 2:
The stroller employs dynamic folding mechanisms with rotatable seat back positioning members and sliding bar systems that allow smooth transition between unfolded service mode and folded storage mode, optimizing both usability and compactness
2Volume of moving object
If stroller is folded compactly, then storage convenience is improved, but seat size and basket storage space deteriorate
Solution Approach 1:
The seat unit incorporates a sliding slot portion and rotatable seat back positioning member that dynamically adjust the seat configuration, allowing the seat to maintain adequate size in service mode while enabling compact folding when storage is needed
Solution Approach 2:
The seat structure is segmented into adjustable components including the seat back and seat body positioning members, allowing independent adjustment of each segment to optimize both seat comfort and folding compactness
3Adaptability or versatility
If conventional stroller structure is used, then basic seating is provided, but raised seat for younger child near parent is not available
Solution Approach 1:
The seat back positioning member with sliding bar mechanism provides dynamic adjustment capability, allowing the seat back to rotate and lock at multiple positions including a raised configuration that positions younger children near the parent, all through a relatively simple mechanical system
Data Source
AI summary
A multi child stroller includes a stroller frame and a first seat. The stroller frame has two sections adapted to fold and unfold relative to each other. The first seat is disposed on one of the two sections. The first seat includes a first seat unit and a seat back positioning member. The first seat unit has a sliding slot portion. The seat back positioning member is rotatably disposed on the stroller frame. The seat back positioning member includes a sliding bar adapted to slide inside the sliding slot portion, so as to switch the first seat unit into one of a first unfolding mode, a second unfolding mode and a folding mode.