Domed Comforter Structure for Stable Loft and Reduced Drafts
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Solution Overview
Problem
Traditional comforters tend to rearrange when users change positions, affecting comfort, as they lack a stable configuration relative to the users.
Innovation Solution
A comforter design featuring a core portion with upper and lower fabric layers connected by stitching, filled with material within the stitched volumes, and a gathered top edge attached to a head border portion, creating a domed appearance that maintains its arrangement during user movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the comforter is made lightweight to provide warmth with little weight, then thermal efficiency is improved, but the comforter becomes prone to rearrangement when users move
Solution Approach 1:
The comforter is divided into multiple compartments or sections through strategic stitching, creating discrete chambers that hold filling material. This segmentation prevents the filling from shifting freely when users move, maintaining the comforter's overall arrangement while keeping it lightweight.
Solution Approach 2:
Different regions of the comforter have different stitching densities and compartment sizes tailored to specific needs. Areas prone to movement or pressure receive enhanced compartmentalization to prevent rearrangement, while other areas maintain lighter construction for thermal efficiency.
2Temperature
If the comforter is made lofty to provide attraction and warmth, then thermal insulation is improved, but the comforter becomes more susceptible to rearrangement
Solution Approach 1:
The lofty comforter is constructed with multiple elevated sections separated by stitching lines, creating a segmented three-dimensional structure. This segmentation allows each section to maintain its loft independently while preventing overall rearrangement when users shift positions.
Solution Approach 2:
The comforter features domed or curved sections created by gathering and stitching techniques, giving it an attractive lofty appearance. These curved structures are anchored through strategic stitching to maintain their shape and position even when users move beneath the comforter.
3Ease of manufacture
If the comforter is constructed with simple stitching to reduce manufacturing complexity, then ease of manufacture is improved, but the comforter lacks the compartmentalization needed to prevent rearrangement
Solution Approach 1:
The comforter uses a grid-like stitching pattern that creates uniform compartments throughout. This regular segmentation is relatively simple to manufacture using automated stitching machines while effectively preventing filling shift and maintaining comforter arrangement stability.
Data Source
AI summary
The comforter includes a core portion which includes upper and lower fabric layers with lines of stitching connecting the upper and lower fabric layers and filling within the volumes of the core portion defined thereby. Border portions are attached to the head and foot ends of the core portion, wherein the top edge of the core portion is gathered and the head border portion sewn thereto. The width of the top edge of the core portion is approximately 20-75% wider ungathered than when gathered and sewn to the head border portion. The lower edge of the core portion is approximately 0-50% wider ungathered than when gathered and sewn to the foot border portion. Side border portions are secured to the sides of the core portion and to the opposing ends of the head and foot border portions.