Stroller Frame Folding Mechanism with Automatic Latch
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Solution Overview
Problem
Existing child stroller frames that allow multiple seating configurations often fail to fold compactly, making them cumbersome to store and transport, which discourages parents from purchasing them.
Innovation Solution
A child stroller apparatus with a rear leg frame, front leg frame, and handle frame that includes a latching mechanism and linking parts, allowing the frames to fold and unfold easily by pivoting and locking mechanisms, enabling the stroller to be compactly folded for storage and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the stroller frame is designed to allow multiple seating configurations, then the adaptability is improved, but the device complexity increases and the folding capability deteriorates
Solution Approach 1:
The frame is divided into separate leg frames and handle frame that can independently pivot and fold. The leg frames are segmented from the handle frame, allowing each component to be folded separately while maintaining multiple seating configurations when assembled.
Solution Approach 2:
The frame incorporates dynamic pivoting joints that allow the leg frames and handle frame to rotate between unfolded (for use) and folded (for storage) positions. This dynamic capability enables the frame to adapt between different operational states while maintaining structural integrity.
2Adaptability or versatility
If the stroller frame allows multiple seating configurations, then the adaptability is improved, but the stroller becomes cumbersome to store and transport
Solution Approach 1:
The frame uses dynamic pivoting joints that enable easy rotation between unfolded and folded positions. This dynamic mechanism allows parents to quickly fold the stroller for storage or transport while maintaining the capability for multiple seating configurations when assembled.
Solution Approach 2:
The latching mechanism automatically engages when the frame is folded, providing self-locking functionality that simplifies the folding operation. The mechanism serves itself by automatically securing the folded position without requiring additional fastening steps.
3Reliability
If the latching mechanism locks the frames in unfolded state, then the reliability is improved, but the ease of operation for folding deteriorates
Solution Approach 1:
The latching mechanism automatically engages when the frame is folded, providing self-locking functionality. The mechanism releases automatically when the frame is in the unfolded position, eliminating the need for manual intervention and maintaining both reliability and ease of operation.
Solution Approach 2:
The linking part provides mechanical feedback that connects the latching mechanism to the folding motion. When the frame is folded, the linking part automatically actuates the latch to engage, ensuring reliable locking without requiring separate manual operation.
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 conveniently folded and unfolded, reducing its size for easy storage and transport while maintaining multiple seating configurations, enhancing user convenience.
Implementation Method 1
The front leg frame has a second side segment fixedly connected with a second coupling part, the third side segment being fixedly connected with a third coupling part, the second and third coupling parts being respectively connected pivotally with the first coupling part
Data Source
AI summary
A child stroller apparatus includes a rear and a front leg frame respectively having a first and a second side segment, a handle frame having a grip portion and a third side segment respectively connected fixedly with a first and a second joining part that are pivotally connected with each other, a latching mechanism for locking the rear and front leg frames and the handle frame in an unfolded state, and a latch carried with the third side segment. The latch can engage and disengage the first joining part to lock and unlock the grip portion relative to the third side segment. Moreover, a linking part couples the latch to the rear leg frame or the front leg frame so that a folding rotation of the handle frame relative to the rear leg frame causes the latch to disengage from the first joining part.