Play Yard Mattress Clip Assembly for Secure Removable Locking
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Solution Overview
Problem
Existing child play yards lack an effective mechanism to securely attach and detach a mattress from the floor, posing risks of entrapment and hindering easy folding and transportation.
Innovation Solution
A clip assembly with a pivotally coupled leg and detent is used, which passes through apertures in a retention assembly on the floor, allowing for secure attachment and easy detachment of the mattress, featuring a mechanism that includes raised side walls, a loop portion, and a cavity for retention, with the detent securing in a detent retention aperture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a mattress is permanently attached to the play yard floor, then stability is improved, but ease of operation deteriorates (cannot be removed for folding or transport)
Solution Approach 1:
The attachment system is divided into separate components: a retention assembly fixed to the floor and a clip assembly attached to the mattress. This segmentation allows the mattress to be securely held during use while enabling easy removal by detaching the clip assembly, thus resolving the contradiction between stability and ease of operation.
Solution Approach 2:
The clip assembly incorporates a pivotally coupled leg that can rotate between engaged and disengaged positions. This dynamic mechanism allows the attachment system to transition from a stable locked state during use to a removable state for folding or transport, simultaneously achieving both stability and ease of operation.
2Reliability
If a complex attachment mechanism is used, then reliability is improved, but device complexity increases
Solution Approach 1:
The clip assembly is designed to be manually operated by the user without requiring additional tools or complex mechanisms. The user simply grasps the leg and pivots it to engage or disengage the detent from the aperture, achieving reliable attachment with minimal complexity.
Solution Approach 2:
The detent acts as an intermediary element that mediates between the leg and the retention assembly. It provides a simple yet reliable locking mechanism by engaging with the aperture, ensuring secure attachment without requiring complex fastening systems.
3Object-affected harmful factors
If the mattress is securely retained during use, then safety is improved, but ease of repair deteriorates (difficulty to remove for cleaning or replacement)
Solution Approach 1:
By separating the attachment function into a removable clip assembly and a fixed retention assembly, the system ensures the mattress is securely held during use (preventing entrapment) while allowing easy removal for cleaning or replacement by simply detaching the clip assembly.
Solution Approach 2:
The dynamically operable clip assembly provides secure retention during use through the engaged detent, yet allows easy removal when needed for cleaning or replacement by pivoting the leg to disengage the detent, thus resolving both safety and ease of repair requirements.
Data Source
AI summary
A child play yard includes a frame, a floor coupled to a lower portion of the frame, and a mattress configured to be removably coupled to the floor. The mattress includes a lower side to which is coupled a clip assembly including a base and a leg pivotally coupled to the base. The leg includes a detent extending therefrom. The floor includes a retention assembly having a first aperture through which the leg of the clip assembly passes and a second aperture through which the detent passes when the mattress is coupled to the floor.