Stroller Frame Folding Mechanism for Compact Storage
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Solution Overview
Problem
Existing stroller frames with carry cots are inconvenient to unfold and fold, and occupy a large space when folded, due to an unreasonable assembly structure.
Innovation Solution
A stroller frame with an unfolding and folding mechanism that includes a supporting body, a movable body, a front foot support, a rear foot support, and pivotally connected connecting bars, allowing for easy conversion between unfolded and folded positions while minimizing space occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the assembly structure for the carry cot and frame is simplified, then the unfolding and folding operation becomes more convenient, but the structural stability may deteriorate
Solution Approach 1:
The stroller frame is divided into multiple independent components including front foot support, rear foot support, connecting bars, and movable body that can pivot relative to each other. This segmentation allows each component to move independently during folding/unfolding operations while maintaining overall structural integrity through the coordinated movement of all segments
Solution Approach 2:
The movable body is arranged within the supporting body and can slide in up and down directions, creating a nested configuration. When folded, the connecting bars and foot supports nest within the frame structure, minimizing the occupied space while maintaining stability through the nested arrangement
2Volume of moving object
If the stroller frame is designed to fold compactly, then the occupied space after folding is reduced, but the complexity of the assembly structure increases
Solution Approach 1:
The stroller frame employs dynamic pivot connections between the front foot support, rear foot support, connecting bars, and movable body. These pivot points allow the structure to transition smoothly between unfolded and folded states, enabling compact folding without requiring complex disassembly or additional locking mechanisms
Solution Approach 2:
The connecting bars serve multiple functions: they connect the foot supports to the movable body, provide structural support when unfolded, and enable the folding motion through their pivotal connections. This multi-functionality reduces the need for separate components, simplifying the overall assembly structure while achieving compact folding
Data Source
AI summary
A stroller frame, switchable between an unfolded position and a folded position, includes an unfolding and folding mechanism having a supporting body and a movable body movable relative to the supporting body, a front foot support, and a rear foot support. Each of the front foot support and the rear foot support is pivotally connected to the supporting body and the movable body. When switching the stroller frame from the unfolded position to the folded position, the front foot support and the rear foot support are configured to move away from each other, and the movable body is configured to move towards the supporting body, or when switching the stroller frame from the folded position to the unfolded position, the front foot support and the rear foot support are configured to move close to each other, and the movable body is configured to move away from the supporting body.