Delayed-Action Stroller Folding Mechanism for One-Handed Compact Locking
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Solution Overview
Problem
Traditional collapsible strollers face issues such as cumbersome folding mechanisms, difficulty in one-handed operation, lack of structural stability, and compromised ergonomic considerations, making them inconvenient and potentially unsafe, especially when carrying a child.
Innovation Solution
A delayed-action collapsible stroller device with a folding mechanism that maximizes compactness and includes advanced locking mechanisms for structural rigidity, along with standardized mounting points and accessories, ensuring ease of use and robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional hinged frames or sliding joints are used for collapsible strollers, then the stroller can be folded into a compact form, but the folding mechanism becomes cumbersome and requires multiple steps or significant force
Solution Approach 1:
The patent replaces traditional mechanical hinged frames and sliding joints with a spring-loaded piston system. The piston engages with cam-shaped surfaces on the frame members, using elastic energy storage and geometric transformation to achieve automatic locking and unlocking. This substitution eliminates the need for multiple manual manipulation steps while maintaining compact folding capability.
Solution Approach 2:
The spring mechanism is pre-loaded during the folding process, automatically engaging the locking position without requiring the user to manually set multiple joints. The cam surfaces are pre-configured to guide the frame members into the correct folded configuration, performing the locking action in advance before the user completes the folding motion.
2Volume of moving object
If traditional collapsible mechanisms are used, then the stroller can be folded, but it lacks structural stability during use or transport
Solution Approach 1:
The spring-loaded piston system pre-loads the frame with elastic energy that creates a rigid locking force in the deployed position. This beforehand energy storage ensures that the frame maintains structural stability during use, counteracting external forces before they can cause instability or collapse.
Solution Approach 2:
The piston acts as an intermediary element between the cam-shaped frame members, transmitting and amplifying forces to maintain structural rigidity. The cam surfaces translate the piston's linear motion into rotational locking, creating a mechanically advantageous connection that enhances overall frame stability during both use and transport.
3Volume of moving object
If traditional folding mechanisms are used, then the stroller can be collapsed, but it requires significant force or multiple steps to transition between states
Solution Approach 1:
The patent replaces traditional mechanical hinged frames and sliding joints with a spring-loaded piston system. The piston engages with cam-shaped surfaces on the frame members, using elastic energy storage and geometric transformation to achieve automatic locking and unlocking. This substitution eliminates the need for multiple manual manipulation steps while maintaining compact folding capability.
Solution Approach 2:
The folding mechanism uses periodic engagement of the piston with the cam surfaces, where the spring-loaded piston automatically cycles between locked and unlocked positions as the frame transitions between deployed and folded states. This periodic action reduces the time required for folding by eliminating intermediate adjustment steps.
4Volume of moving object
If traditional collapsible stroller designs are used, then the stroller can be folded, but it compromises ergonomic considerations and difficulty in one-handed operation
Solution Approach 1:
The spring-loaded piston system is designed to automatically perform the locking and unlocking actions without requiring the user's direct manipulation. The cam-shaped surfaces guide the frame members into the correct positions, and the spring force automatically engages or releases the locks, allowing one-handed operation while maintaining ergonomic considerations.
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 device provides a simple, compact, and reliable folding mechanism that enhances structural stability and safety, allowing easy operation even when carrying a child, while maintaining ergonomic considerations and accommodating various accessories.
Implementation Method 1
a piston, a spring, and a stopper
Implementation Method 2
a pull rod (500) having a compressed orientation and an extended orientation
Data Source
AI summary
The delayed-action collapsible stroller device may be simple to operate, compact when folded, and robust and reliable during both use and storage. Such a device may further comprise a delayed-action folding mechanism to maximize its compactness when folded, and may further comprise advanced locking mechanisms to enhance its structural rigidity and ability to carry heavier users. The delayed-action collapsible stroller device may further comprise standardized mounting points and a plurality of accessories to enhance its functionality.