Simulated duvet cover system
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Solution Overview
Problem
Conventional duvet covers are difficult to assemble and disassemble, prone to zipper defects, and contain metallic elements that can damage commercial laundry equipment, limiting their use in hotels and hospitals where frequent cleaning is necessary.
Innovation Solution
A simulated duvet cover system with a top and bottom fabric layer forming pockets around a central opening, allowing easy insertion and removal of the fill layer, and using fabric knot buttons or hook and loop fasteners for assembly, which are safe for industrial laundry equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional duvet cover with zipper is used, then the opening can be selectively closed, but the zipper is prone to defective operations and can damage commercial laundry equipment
Solution Approach 1:
The patent removes the zipper entirely from the duvet cover design. Instead, it uses a continuous fabric opening that can be manually opened and closed without any metallic or rigid fastening elements, thereby eliminating the reliability issues and equipment damage risks associated with zippers
Solution Approach 2:
The patent changes the state of the opening from a mechanically closed structure (zipper) to a fabric-based structure that relies on elastic tension and friction to remain closed. This parameter change eliminates the need for metallic components while maintaining the functional requirement of a closable opening
2Reliability
If a conventional duvet cover is used, then it can protect the blanket or comforter, but it is difficult and time-consuming to assemble and disassemble
Solution Approach 1:
The patent divides the duvet cover into separate components: a removable cover portion and a filler portion. The cover can be easily detached from the filler by simply pulling it off, eliminating the time-consuming process of unzipping and repositioning required by conventional designs
Solution Approach 2:
The patent incorporates elastic bands and friction-fit mechanisms in advance during manufacturing, so that the cover naturally stays attached during use but can be quickly removed when needed. This preliminary preparation eliminates the need for complex assembly/disassembly operations
3Reliability
If a conventional duvet cover with zipper is used, then it can secure the fill layer, but it cannot be used in commercial contexts where industrial washing equipment is used
Solution Approach 1:
The patent uses fabric-based fastening elements that are designed to be laundered repeatedly without damage. The elastic bands and friction-fit mechanisms are constructed from durable, washable materials that can withstand industrial washing conditions, making the product suitable for commercial hospitality use
Solution Approach 2:
The patent changes the material composition from metallic (zipper) to textile-based (elastic bands, friction fabric), which fundamentally alters the compatibility with laundry equipment. The textile materials can be processed through industrial washers and dryers without causing mechanical damage
4Reliability
If the blanket or comforter is inserted through a small opening, then the duvet cover can be closed, but the blanket or comforter can bunch up or fold over itself causing difficulties
Solution Approach 1:
The patent transitions from a two-dimensional zipper closure to a three-dimensional elastic enclosure that expands to accommodate the filler. The elastic bands create a volumetric space that allows the blanket to be inserted without bunching, while still providing secure closure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables quick and easy assembly and disassembly, prevents direct contact with the fill layer during use, and is compatible with commercial laundry equipment, extending the lifespan of bedding and reducing labor costs in high-frequency cleaning environments.
Implementation Method 1
The recesses are defined by the top and bottom fabric layers and the elastic bands, which extend between the corners of the top and bottom fabric layers
Implementation Method 2
fastening elements, which are defined by fabric knot buttons and retainer apertures
Implementation Method 3
The fastening elements are defined by fabric knot buttons and retainer apertures
Data Source
AI summary
A simulated duvet cover system provides an easily-manufactured and assembled construction in which a cover layer, defined by top and bottom fabric sheets with pockets defined therebetween, is configured to be removably coupled to a separate fill layer, defined by a blanket or comforter. The bottom fabric sheet extends inwardly from the periphery of the top fabric sheet to surround a central opening, which the fill layer can be inserted through and then tucked into the pockets. A further backing layer may be connected to the cover layer with non-metallic and non-rigid fasteners such as fabric knot buttons, to cover the central opening. The system hides the appearance of the fill layer when in use, thereby providing a similar appearance to a conventional duvet cover, while still allowing for easy removal and cleaning of the system with industrial laundering equipment or the like.