Rotatable Play Yard Frame Locking Mechanism for Secure Collapse
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Solution Overview
Problem
Conventional collapsible children's play yard frames are difficult for users to collapse and lack structural security when expanded.
Innovation Solution
A locking mechanism with a rotatable member that adjusts between locked and unlocked positions, preventing or allowing the frame to collapse, and an adjustable linking mechanism for accommodating various frame configurations, facilitating easy conversion between expanded and collapsed states while ensuring safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional release mechanism is used to collapse the frame, then the frame can be collapsed, but the mechanism is difficult to operate and lacks structural security when expanded
Solution Approach 1:
The locking mechanism dynamically transitions between locked and unlocked states through rotation of the release member. The mechanism adapts its function based on the rotational position: at the first position it provides structural security by preventing collapse, at the second position it enables easy collapse. This dynamic state change resolves the contradiction between stability during use and ease of collapse.
Solution Approach 2:
The mechanism changes the spatial parameter (rotational position) of the release member to control the locking state. By rotating the release member between two distinct positions, the system transitions between providing structural security and enabling frame collapse, thereby resolving the contradiction between these opposing requirements.
2Adaptability or versatility
If the frame is made collapsible for portability, then storage efficiency improves, but structural stability when expanded deteriorates
Solution Approach 1:
The locking mechanism provides dynamic structural support that adapts to the frame's operational state. When the release member is in the first (locked) position, the mechanism provides rigid structural support maintaining frame stability. When rotated to the second (unlocked) position, it allows collapse for portability. This dynamic adaptation resolves the contradiction between stability and adaptability.
Solution Approach 2:
The locking mechanism acts as an intermediary element between the frame members, providing conditional structural support. It mediates between the requirement for structural stability during use and the need for collapsibility for storage, allowing the frame to achieve both states through the rotational position of the release member.
3Reliability
If a locking mechanism is added to prevent accidental collapse, then safety improves, but device complexity increases
Solution Approach 1:
The locking mechanism is designed to be self-latching, automatically maintaining the locked position without requiring continuous user intervention. The mechanism uses its own structural configuration to maintain the safety state, reducing the need for additional complex control systems while preserving the safety function.
Solution Approach 2:
The release member serves multiple functions: it acts as both the locking mechanism and the operational interface for collapsing the frame. This multi-functionality reduces the need for separate components, thereby minimizing added complexity while maintaining the safety function of preventing accidental collapse.
Data Source
AI summary
Various embodiments of the present invention are directed to a locking mechanism for a collapsible play yard frame. In various embodiments, the locking mechanism is configured to be adjusted between a locked position, in which the play yard frame is restricted from collapsing, and an unlocked position, in which the play yard frame is permitted to collapse. In particular embodiments, the locking mechanism is operatively connected to the play yard frame's lower frame members and includes a rotatable member configured for being rotated to adjust the locking mechanism between the locked position and the unlocked position. The locking mechanism's rotatable member enables the locking mechanism to be secured in the locked position when the play yard is in use and is easily adjusted by a user to the unlocked position when the play yard is to be collapsed for storage.