Notched Mattress Assembly for Fitted Sheet Placement Without Lifting
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Solution Overview
Problem
Conventional mattresses require lifting to place or remove a fitted sheet, which can be difficult for smaller individuals or those with physical handicaps, and pose challenges on bed frames with obstructed access.
Innovation Solution
A mattress assembly with notches at the corners or a continuous groove around the perimeter that allows the fitted sheet to be placed and removed without lifting, accommodating a human hand for gripping and retaining the sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional mattress is used without notches, then the mattress structure remains simple and intact, but lifting the mattress is required to place or remove fitted sheets, which is difficult for smaller individuals or those with physical handicaps
Solution Approach 1:
The mattress is segmented by cutting notches into its body, creating separate access regions that allow the fitted sheet to be placed without lifting the entire mattress. The notches divide the mattress surface into accessible segments while maintaining the overall structural integrity of the mattress body.
2Ease of operation
If the mattress is placed on a bed frame with obstructed access, then the mattress remains stable and secure, but placing the fitted sheet becomes difficult or impossible without lifting the mattress
Solution Approach 1:
Notches are positioned at the corners of the mattress where access is typically obstructed by bed frame rails. These segmented openings provide alternative access paths that bypass the obstructed areas while the remaining mattress structure maintains stable contact with the bed frame surface.
3Ease of operation
If the mattress is lifted to place the fitted sheet, then the fitted sheet can be positioned on the mattress, but the operation becomes difficult and time-consuming
Solution Approach 1:
The notches are pre-formed into the mattress structure during manufacturing, creating ready-made access openings. This preliminary action eliminates the need for users to lift the mattress during sheet placement, allowing the fitted sheet to be directly positioned through the pre-prepared notches.
4Ease of operation
If corner notches are added to the mattress, then access for placing fitted sheets is improved, but the mattress structure becomes more complex
Solution Approach 1:
Notches are localized specifically at the corner regions of the mattress where access is most needed, rather than uniformly distributing structural modifications across the entire mattress. This local quality approach provides targeted access improvement while minimizing overall structural complexity.
Data Source
AI summary
A mattress assembly is described that permits the placement of a fitted sheet without lifting the mattress assembly. The mattress assembly includes a mattress substrate configured to rest on a surface or bed frame (i.e. box spring), and one or more notches configured to form recesses that accommodate a human hand and retain a fitted sheet. In some embodiments, the notches are located at the corners of the mattress substrate. In other embodiments, the notches can be continuous, forming a groove around the perimeter of the mattress substrate.