Reversible Bedding Assembly to Prevent Sheet Tangling

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Solution Overview

Problem

Traditional bedding systems, such as sheets and blankets, often become easily dislodged or tangled during use, causing frustration and disrupting sleep, especially for children and couples sharing a bed, and are difficult to keep intact and clean.

Innovation Solution

A bedding system comprising two external surfaces with distinct material constructions, connected along perimetral edges with a fastening mechanism, forming a reversible fitted sheet that securely attaches to a mattress, with an optional cavity for thermal conductivity and storage, and a trim portion for a made bed appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a top sheet is made with light weight fabric and flexibility, then comfort and softness are improved, but the sheet becomes easily discarded and crumpled

Engineering Contradiction:
ImprovecomfortVSAvoidsheet stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent combines the top sheet and blanket into a single integrated bedding system where the blanket is inserted into a cavity formed by two external surfaces. This merging prevents the separate sheet and blanket from being easily discarded or crumpled, as they function together as one stable unit while maintaining the comfort of the lightweight top sheet surface.

Inventive Principle:
Principle #5Merging (Combining)

2Temperature

If a top sheet and blanket are used separately, then thermal comfort is improved, but they become tangled and caught by individuals during sleep

Engineering Contradiction:
Improvethermal comfortVSAvoidbedding integrity
Core Design Contradiction:
TemperatureVSStability of the object's composition

Solution Approach 1:

The patent implements a nested structure where the blanket is inserted into a cavity formed between two external surfaces (similar to a duvet cover). This nesting maintains the thermal comfort of having both sheet and blanket layers while preventing tangling and catching, as the blanket is contained within the structured cavity and cannot easily become entangled with the external surfaces.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Temperature

If a cavity is added to receive blanket contents, then thermal conductivity is improved, but device complexity increases

Engineering Contradiction:
Improvethermal conductivityVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent creates a multi-functional external surface assembly where two external surfaces form a cavity structure that simultaneously provides thermal conductivity management, blanket containment, and a made-bed appearance. The cavity serves multiple purposes: it holds the blanket, manages thermal properties, and creates the aesthetic of a tucked sheet, thereby improving thermal conductivity without proportionally increasing complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Reliability

If perimetral connection is made between external surfaces, then bedding stability is improved, but ease of manufacture decreases

Engineering Contradiction:
Improvebedding stabilityVSAvoidassembly difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent divides the bedding system into distinct segments: two external surfaces that can be manufactured separately and then connected along perimetral edges. This segmentation allows each surface to be optimized and manufactured independently, improving bedding stability through the perimetral connection while maintaining reasonable ease of manufacture by avoiding the need to create a single complex piece.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10070741B1Bedding device and system
Publication Date: 2018.09.11 SOFRO ELIZABETH
  • US10070741B1 patent drawing
  • US10070741B1 patent drawing
  • US10070741B1 patent drawing

AI summary

A method of assembling a bedding system includes: operatively connecting a first external surface to a second external surface, each surface having a different material construction, the first and second external surfaces being oriented substantially opposite such that they face away from each other; and arranging the external surfaces on a mattress, wherein either external surface faces the mattress so that the opposite external surface faces away from the mattress. The material construction of the first external surface may have a greater thermal conductivity than the material construction of the second external surface. A trim portion may be positioned in plane and facing the same direction as the first external surface, the trim portion having the second material construction and being continuous with the second external surface. When the trim portion and first external surface are arranged facing away from the mattress, an appearance resembling a made bed is provided.