Duvet Cover Seam Layout for Softer, More Flexible Edges
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Solution Overview
Problem
Conventional duvet covers are stiffened by connecting seams along the outer edges, limiting their flexibility and adaptability to body contours and uneven surfaces.
Innovation Solution
Designing duvet covers with connecting seams at least 5 cm, preferably 10 cm or 15 cm away from the outer edge, shifting the stiffening effect from the edge region to the middle, where it is less critical, and using diagonal or minimal connecting seams in the edge area to maintain softness and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If connecting seams are placed along the outer edge of the duvet cover, then the structural integrity and ease of manufacture are improved, but the flexibility and adaptability of the edge area deteriorate
Solution Approach 1:
The patent extracts the connecting seams from the edge area by positioning them at least 5 cm inward from the outer edge. This separation removes the harmful stiffening effect from the sensitive edge region while preserving the structural function of the seams in the interior area, thereby resolving the contradiction between ease of manufacture and adaptability.
Solution Approach 2:
The patent applies different seam arrangements to different areas: the edge area (within 5 cm of the outer edge) is kept free of connecting seams to maintain flexibility and adaptability, while the interior area contains the connecting seams to ensure structural integrity and ease of manufacture. This localized differentiation resolves the contradiction by optimizing each area for its specific function.
2Strength
If connecting seams are placed along the outer edge of the duvet cover, then the structural integrity is improved, but the softness of the edge area deteriorates
Solution Approach 1:
The patent extracts the stiffening effect from the edge area by relocating connecting seams at least 5 cm inward from the outer edge. This preserves the structural integrity provided by the seams while eliminating their harmful stiffening influence from the sensitive edge region, thereby resolving the contradiction between strength and softness.
Solution Approach 2:
The patent creates local quality differentiation by allowing connecting seams in the interior area to provide structural integrity while prohibiting them in the edge area to maintain softness. This spatial differentiation resolves the contradiction by applying seam construction only where structural support is needed without compromising edge softness.
Data Source
AI summary
The covering (2) has an outer cover fabric sewn at a closed covering by a joining seam (3) of an edge region (7) of the covering, where a filling material is filled at interior of the fabric. The joining seam of the edge region is extended parallel to outer edges (5, 6) of a rectangular blanket (1), where the edge region comprises breadth (15) of 5 cm, and the covering is viewable from top. The joining seam is identical with a quilting seam (8) or extended parallel to the quilting seam at a distance of less than 2 cm. The quilting seam is extended parallel to diagonal direction of the blanket.