Fitted-Border Comforter Structure for Neat Mattress Coverage
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Solution Overview
Problem
Conventional comforters are inconvenient and aesthetically unpleasing due to their size mismatch with mattresses, excess fabric at the foot corners, and the need for a duvet cover, which complicates bed-making and appearance.
Innovation Solution
A comforter design featuring a core portion matching the mattress size, with a border member attached along three sides, comprising two layers of fabric with minimal or no fill, designed to lie flat against the mattress, eliminating the need for a duvet cover and providing a neater appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional comforter is made larger than the mattress to extend over the sides and foot, then the comforter provides adequate coverage and warmth, but the bed appearance becomes less neat and convenient
Solution Approach 1:
The comforter is segmented into two distinct parts: a core portion that matches the mattress dimensions and provides warmth, and a border member that extends along three sides to provide coverage. This segmentation allows each part to serve its specific function optimally without the drawbacks of a uniformly oversized comforter.
Solution Approach 2:
Different parts of the comforter have different properties: the core portion has full insulation for warmth, while the border member has minimal or no fill for a sleek appearance that lies flat against the mattress. This local differentiation resolves the contradiction between coverage and neat appearance.
2Volume of moving object
If excess fabric is allowed at the foot corners of the bed for comforter coverage, then the comforter provides adequate coverage, but the bed appearance becomes less neat
Solution Approach 1:
The border member is specifically designed to extend along the foot end and side edges, providing coverage where needed while the curved corner design ensures excess fabric does not protrude awkwardly at the foot corners, maintaining a neat appearance.
Solution Approach 2:
The border member features curved corners instead of sharp angles, allowing the fabric to drape smoothly around the mattress corners and eliminate the accumulation of excess fabric that would create an untidy appearance at the foot corners.
3Reliability
If a duvet cover is used with the comforter for protection and appearance, then the comforter is protected and appearance is improved, but bed-making becomes more complex
Solution Approach 1:
The border member is attached directly to the core portion to form an integrated comforter unit that provides both protection and appearance functionality without requiring a separate duvet cover. This merging eliminates the additional steps of covering and securing a duvet cover while maintaining the protective and aesthetic functions.
4Shape
If the border member has minimal or no fill between fabric layers, then the border lies flat against the mattress for neat appearance, but the insulation capability is reduced
Solution Approach 1:
The comforter has non-uniform insulation distribution: the core portion has full fill for maximum warmth where the body contacts the bed, while the border member has minimal or no fill to lie flat against the mattress for a neat appearance. This local quality differentiation resolves the contradiction between flatness and insulation.
Data Source
AI summary
The comforter includes a core portion which has dimensions approximately the same as the top of the mattress on which it is to be placed. A border member portion is attached to two longitudinal sides and a foot end of the comforter. The border member comprises two layers of fabric with little or no fill therebetween, with the inner edges thereof attached to the core portion and the outer edges attached together.