Body form-fitting duvet
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Solution Overview
Problem
Conventional duvets fail to maintain a body form-fitting position during sleep, allowing cold air to penetrate and not accommodating varying temperature preferences between individuals sharing a bed.
Innovation Solution
A body form-fitting duvet design featuring a flat part with increased mass and detachable dome-shaped parts, allowing for adjustable insulation and secure fit, using multiple seams and releasable fastening means to ensure the duvet stays in place and can be customized for different temperature needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional flat duvet is used, then the duvet is simple in structure and easy to manufacture, but it allows large gaps and openings around the user, causing cold air infiltration
Solution Approach 1:
The patent applies curvature by transforming the traditional flat duvet into a dome-shaped structure that conforms to the human body contour. The dome shape eliminates gaps and openings between the duvet and body, preventing cold air infiltration while maintaining a relatively simple manufacturing process using curved seams and panels.
2Reliability
If the duvet is made to fit the body shape, then coverage and warmth are improved, but the duvet drifts away when the user moves during the night
Solution Approach 1:
The patent divides the dome-shaped duvet into multiple detachable panels or segments that can move independently. This segmentation allows the duvet to adapt to user movement while maintaining overall coverage, preventing the entire duvet from drifting away when the user changes position during sleep.
3Adaptability or versatility
If uniform insulation is provided across the entire duvet, then manufacturing is simplified, but it cannot accommodate varying temperature preferences of two persons sleeping together
Solution Approach 1:
The patent implements local quality by providing different insulation levels in different regions of the dome-shaped duvet. The insulation material density or thickness varies across different panels, allowing one side to be warmer while the other remains cooler, thus accommodating the different temperature preferences of two persons sleeping together without requiring completely separate duvets.
4Reliability
If the duvet is made lighter to maintain comfort, then ease of movement is improved, but coverage and ability to stay in place deteriorate
Solution Approach 1:
The dome shape concentrates the duvet's weight over a smaller effective area compared to a flat duvet of the same coverage. This curvature allows the duvet to maintain stability and coverage while using less material and weighing less, as the three-dimensional structure provides better body conformity without requiring excessive material mass.
Data Source
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AI summary
A body form-fitting duvet (1) comprising a top layer of cloth (T1, T3) and a bottom layer of cloth (T2,T4) and a plurality of compartments (P1, P2) which are located between the top layer and the bottom layer, wherein the compartments are defined by multiple seams connecting the top layer and the bottom layer to one another, and wherein each compartment is filled with a filling material, the body form-fitting duvet comprising: - a flat part, - one or two dome-shaped parts which have two planes of curvature (C1. C2), wherein each dome-shaped part has a perimeter via which it is connected to the flat part, wherein said perimeter comprises a head section (H), a foot section (F), a left section (L) and a right section (R), and wherein the flat part forms a flat peripheral zone surrounding the one or two dome-shaped parts (2), wherein the flat part has a greater mass (g) per m2 than the one or two dome-shaped parts, and wherein the one or two dome-shaped parts (2) are completely detachable in one piece from the flat part (4) via the one or two first releasable fastening means (F1) and completely replaceable in one piece by one or two spare dome-shaped parts (2') which have different insulation properties than the original one or two dome-shaped parts (2), by connecting said one or two spare dome-shaped parts (2') to the flat part (4) via the one or two first releasable fastening means (F1).