Play yard with removable liner
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Solution Overview
Problem
Existing child containment devices, such as play yards and bassinets, lack a convenient and safe method for removing and replacing liners for laundering or replacement, which is essential for maintaining hygiene and comfort.
Innovation Solution
A removable liner system with external attachment, featuring a floor panel, wall panels, a flap portion, and detachable coupling elements that allow for easy installation and removal from the frame, ensuring the liner can be taken off for cleaning or replacement without compromising the device's structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the liner is permanently attached to the frame, then the structural integrity is maintained, but the liner cannot be removed for laundering or replacement
Solution Approach 1:
The coupling system is divided into separate components: a coupling element on the frame and a corresponding coupling mechanism on the liner. This segmentation allows the liner to be attached or detached while maintaining structural integrity when attached, resolving the contradiction between ease of removal and structural stability.
Solution Approach 2:
The coupling element is designed to transition between engaged and disengaged states, providing dynamic attachment. When engaged, it maintains structural integrity; when disengaged, it allows easy removal for laundering or replacement, thus resolving the static contradiction between permanent attachment and removable design.
2Reliability
If the liner is made removable, then hygiene maintenance is improved, but the attachment mechanism complexity increases
Solution Approach 1:
The coupling mechanism is extracted as a separate, specialized component rather than being integrated into the main frame structure. This allows for a focused, simple attachment design that provides reliable removable functionality without unnecessarily complicating the overall device structure.
Solution Approach 2:
The liner is designed as a replaceable component that can be removed for laundering or replacement, similar to disposable elements. This approach prioritizes hygiene maintenance through easy removal while keeping the attachment mechanism simple and focused on that single function.
3Ease of operation
If the upper frame members are detachable, then liner removal is facilitated, but the frame structure complexity increases
Solution Approach 1:
The frame is segmented into detachable upper frame members that can be separated from the main structure. This segmentation enables the liner to be removed more easily while keeping the added structural complexity localized to only the necessary detachable components.
4Device complexity
If the fastener is located on the exterior surface, then the attachment is simplified, but the liner may contact the frame causing pinching hazards
Solution Approach 1:
The fastening mechanism is nested within the liner structure rather than being exposed on the exterior. The fastener components are positioned inside the liner material, allowing simplified attachment while preventing direct contact between the fastener and the frame, thus eliminating pinching hazards.
Data Source
AI summary
A child containment device including a frame having at least one upper frame member, and a liner for removable attachment to the frame. The liner includes at least one wall portion for placement inside of the frame, a flap portion for extending over at least a portion of the upper frame member and outside of the frame, and a fastener securable on an exterior surface of the at least one wall portion of the liner.