Foldable Stroller Bracket Mechanism for Compact Folding
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Solution Overview
Problem
Existing foldable strollers have complex folding mechanisms, are prone to finger pinching, and have a large volume when folded, making them cumbersome for storage and transportation.
Innovation Solution
A foldable stroller with a simple structure featuring a frame with a first and second bracket assembly, a connecting bracket assembly, and a supporting assembly that rotates and slides to facilitate easy folding and unfolding, along with a locking assembly for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional folding mechanisms with multiple rods and components are used, then the stroller can achieve foldability, but the structure becomes complicated and the folded volume remains large
Solution Approach 1:
The frame is divided into multiple bracket assemblies (first bracket assembly, second bracket assembly, connecting bracket assembly) that can independently move and fold relative to each other, enabling simplified folding operations without requiring complex multi-rod mechanisms
Solution Approach 2:
The supporting assembly incorporates both rotatable and slidable connections that allow dynamic transformation between folded and unfolded states, achieving easy foldability while maintaining structural integrity and reducing folded volume
2Ease of operation
If traditional folding mechanisms are used, then the stroller can be folded, but it is easy to pinch users' fingers during folding
Solution Approach 1:
The supporting assembly acts as an intermediary mechanism between the bracket assemblies, providing controlled movement through rotatable and slidable connections that prevent direct pinching of user fingers during the folding operation
Solution Approach 2:
The design anticipates potential finger pinching hazards by structuring the folding mechanism to open spaces between moving parts during the folding process, preventing user fingers from being trapped in the mechanism
3Ease of operation
If traditional folding mechanisms are used, then the stroller can be folded, but the folded volume remains relatively large
Solution Approach 1:
The bracket assemblies are designed to nest together during folding, with the connecting bracket assembly fitting within the space between the first and second bracket assemblies, significantly reducing the overall folded volume while maintaining ease of folding operation
Solution Approach 2:
The folding mechanism utilizes multi-dimensional movement including rotation and sliding in different directions, allowing the frame to collapse into a compact three-dimensional configuration that minimizes folded volume while keeping the folding operation simple
4Ease of operation
If traditional folding mechanisms are used, then the stroller can be folded, but it is not stable in the folded state and is prone to deformation
Solution Approach 1:
The supporting assembly's rotatable and slidable connections are designed to automatically lock or stabilize in the folded position through gravity and friction, providing inherent stability without requiring additional locking mechanisms, thus maintaining folded state stability while keeping the folding operation simple
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 achieves a compact volume when folded, enhanced stability, and ease of use, reducing the risk of finger pinching and improving storage and transportation convenience.
Implementation Method 1
the elastic member is arranged within the locking block groove and abuts against the locking block, and the elastic member drives the locking block to move towards the locked position
Implementation Method 2
when the frame changes between the folded state and the unfolded state, the connecting end of the supporting assembly rotates relative to the connecting bracket assembly
Implementation Method 3
the sliding end of the supporting assembly slides along the first bracket assembly and the second bracket assembly or the sliding end of the supporting assembly slides along the connecting bracket assembly
Data Source
AI summary
A foldable stroller includes a frame and wheels installed at a bottom of the frame. The frame has a folded state and an unfolded state. The frame includes a first bracket assembly, a second bracket assembly, a connecting bracket assembly and a supporting assembly. The second bracket assembly is arranged opposite to the first bracket assembly in a front-back direction. Each of two ends of the connecting bracket assembly is connected to the first bracket assembly and the second bracket assembly respectively. A connecting end of the supporting assembly is rotatably connected to the connecting bracket assembly, a sliding end of the supporting assembly is slidably connected to either the first bracket assembly and the second bracket assembly or the connecting bracket assembly.