Playards, changing table assemblies, and methods of operating the same
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Solution Overview
Problem
Traditional playards with integrated changing tables face challenges in height adjustability, which can lead to entrapment hazards due to fixed top rail heights, limiting the flexibility and safety of child care configurations.
Innovation Solution
The design incorporates an upper frame with posts of varying heights, allowing the changing table to be mounted at different heights without altering the distance between the table and the playard's top surface, ensuring safety and flexibility by using a swooping profile and adjustable mounting mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the changing table is mounted at a fixed height on the playard, then the structure is simple and stable, but entrapment hazards occur and height adjustability is lost
Solution Approach 1:
The playard frame incorporates posts with varying heights that allow the changing table to be mounted at different heights. The upper frame includes at least one post of a first height and at least one post of a second height, enabling dynamic adjustment of the changing table position while maintaining structural integrity through the swooping profile design.
2Reliability
If the top rail height is increased to prevent entrapment, then safety improves, but the playard height becomes fixed and flexibility is reduced
Solution Approach 1:
The frame is segmented into multiple posts of different heights rather than a uniform structure. This segmentation allows the changing table to be positioned at various heights by selecting different posts for mounting, providing both safety clearance and height adjustability simultaneously.
Solution Approach 2:
The swooping profile introduces a curved dimensional element to the frame structure, allowing the top rail to follow a non-linear path. This dimensional change enables the changing table to be mounted at different vertical positions while maintaining appropriate clearance distances, effectively adding height variability without compromising safety.
Data Source
AI summary
A playard having a floor and an upper frame is disclosed. The upper frame includes a first end supported a first distance above the floor, a second end supported a second distance above the floor, and at least two opposed sides. Each of the opposed sides includes a first rail, a second rail, and a joint joining the first and second rails. The joint is positioned in a first plane when the joint secures the first and second rails in an erected position, the first plane being transversely oriented with respect to the floor.