Stroller Tray Synchronization via Abutting Rotatable Member
Solution Overview
Problem
Conventional strollers have a complicated mechanical design for folding, causing the tray to interfere with the joint folding mechanism, making folding and unfolding time-consuming and inconvenient, as the tray cannot be folded together with the stroller.
Innovation Solution
A folding mechanism that includes a rotatable member pivoted to the cover, detachably connected to connection arms, with an abutting portion that drives the tray to unfold and fold smoothly by abutting against the rear leg connector, allowing the tray to be synchronized with the stroller's folding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional joint folding mechanism is used to fold the stroller, then the stroller can be folded into a collapsed object for storage, but the tray cannot be folded together with the joint folding mechanism and may interfere with the mechanism causing damage
Solution Approach 1:
The patent combines the tray folding mechanism with the stroller's joint folding mechanism into a single integrated system. The tray is connected to the rear leg connector through a connection arm, allowing both components to fold and unfold together as one unit, eliminating the risk of interference and damage between separate mechanisms
Solution Approach 2:
The connection arm acts as an intermediary component between the rear leg connector and the tray. This mediator transmits the folding motion from the rear leg connector to the tray, ensuring synchronized movement and preventing direct interference between the tray and the joint folding mechanism
2Stability of the object's composition
If the tray is separate from the folding mechanism, then the tray can remain stationary, but folding the stroller becomes time-consuming and strenuous
Solution Approach 1:
The tray is merged with the folding mechanism through the connection arm and rotatable member assembly, enabling the tray to move automatically with the stroller during folding and unfolding operations, thereby reducing folding time and effort
3Ease of operation
If a complicated mechanical design is used for the joint folding mechanism, then the stroller can be folded, but the design becomes complex and the tray may interfere with the mechanism
Solution Approach 1:
The folding mechanism is segmented into distinct functional components: the rear leg connector, connection arm, rotatable member, and abutting portion. Each segment has a specific function, and they work together in a coordinated manner, simplifying the overall design while maintaining ease of operation
Solution Approach 2:
The mechanism uses the rear leg connector's own movement to drive the tray through the connection arm and abutting portion, eliminating the need for separate actuators or complex control systems. The system serves itself by using the existing folding motion to control the tray position
Data Source
AI summary
A folding mechanism for a stroller including a cover, a front leg connector pivoted to the cover, a rear leg connector pivoted to the front leg connector, and a front guard member pivoted to the front leg connector is disclosed. A pair of connection arms extends from the front guard member. The folding mechanism includes a rotatable member pivoted to the cover and detachably connected to the connection arm. An abutting portion protrudes from the rotatable member. When the rear leg connector is unfolding, the rear leg connector abuts against the abutting portion and drives the front guard member rotating relative to the cover to an unfolded position. When the rear leg connector is folding, the rear leg connector is detached from the abutting portion to release the front guard member to a folded position.