Baby Stroller Frame One-Click Folding Mechanism
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Solution Overview
Problem
Conventional baby strollers have complex frame structures that are difficult to fold and often cannot stand when folded, requiring additional components like drag springs for folding, which complicates operation and user experience.
Innovation Solution
A baby stroller frame with a one-click quick folding mechanism, featuring a locking assembly with a lock pin and sliding groove, and a drive assembly with a spring and slider block, allowing for easy folding and automatic standing without the need for additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If conventional folding mechanisms with drag springs and torque springs are added to enable automatic folding, then the stroller can fold automatically, but the device complexity increases and operation becomes inconvenient
Solution Approach 1:
The patent removes the complex drag spring and torque spring components from the folding mechanism, retaining only the essential link rods and locking assembly. This extraction of unnecessary components simplifies the overall structure while preserving the automatic folding function through a cleaner mechanical design.
Solution Approach 2:
The folding mechanism is divided into distinct functional segments: the locking assembly with lock pin and lock hole for secure positioning, the link rods for motion transmission, and the simplified support structure. This segmentation allows each component to perform its specific function efficiently without the complexity of integrated spring systems.
2Ease of operation
If the frame structure is simplified for easier folding, then the operation becomes more convenient, but the stroller may not stand properly when folded
Solution Approach 1:
The locking assembly automatically engages through the interaction between the lock pin and lock hole without requiring additional components or complex mechanisms. The structure self-locks when folded, ensuring stability while maintaining simplicity in operation. The link rods naturally guide the folding motion and the locking assembly secures the position.
3Reliability
If traditional locking mechanisms are used during folding, then the structure is secure, but there is risk of finger injuries during locking and unlocking operations
Solution Approach 1:
The locking mechanism uses simple, robust components like the lock pin and lock hole that are designed for single-use engagement cycles without complex moving parts that could pinch fingers. The draw cord operates externally to actuate the locking mechanism, keeping user fingers away from potential pinch points while maintaining secure locking.
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
Enables simple, safe, and convenient one-hand operation for folding and unfolding, reducing production costs and enhancing user experience by eliminating the complexity of existing folding mechanisms and ensuring safety from finger injuries during locking and unlocking.
Implementation Method 1
The drive assembly further comprises a spring configured to drive the slider block to reset
Implementation Method 2
The locking assembly comprises a lock hole in the first link rod. The locking assembly further comprises a lock pin in the second link rod, which matches the lock hole
Data Source
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AI summary
A baby stroller frame comprising: an upper end of a front leg rod (1) rotatably connected with an upper end of a rear leg rod (2); a handle set (3) comprising a rear link rod (31) which is rotatably connected to the rear leg rod (2) at a position that is close to an lower end of the rear link rod; a front support rod (4) comprising a second link rod (42) slidably connected to a first link rod (41), the first link rod being rotatably connected to the upper end of the rear leg rod or of the front leg rod, the second link rod being rotatably connected to the rear link rod; a seat rod (5) having one end rotatably connected to the rear link rod and one other end rotatably connected to a middle portion of the front leg rod. The stroller frame is provided with an easy folding mechanism that allows for a quick folding configured to realize one-click quick folding and automatically standing.