Adjustable Sheet Retaining Cord With Clips for Slip Prevention

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Solution Overview

Problem

Bed sheets and similar articles often slip due to loss of elastic or smooth surfaces, leading to discomfort and untidy appearances, necessitating a solution for effective retention.

Innovation Solution

A multi-purpose adjustable retaining device featuring a cord made of elastomeric material with adjustable ends and suspension clips, allowing for customizable tension and fit on various materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional elastic edges are used on bed sheets, then the sheets can be retained in place, but the elastic loses effectiveness over time causing sheets to slip

Engineering Contradiction:

Improveretention effectivenessVSAvoidelastic durability

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent changes the material parameter from elastic (which degrades) to inelastic cord material (which maintains constant properties), thereby achieving reliable retention without the durability issues of elastic degradation

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the elastic mechanical system with a non-elastic cord and suspension clip mechanical system, using friction and mechanical interlocking instead of elastic recovery to achieve sheet retention

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If adjustable cord length is provided, then the device can fit various sheet sizes, but the device complexity increases

Engineering Contradiction:

Improvesize compatibilityVSAvoidadjustment mechanism

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent makes the cord length dynamic and adjustable rather than fixed, allowing the same device to adapt to different sheet sizes while maintaining simple construction through basic threading and sliding mechanisms

Inventive Principle:

Principle #15Dynamics

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

Provides a convenient and tidy solution for retaining bed sheets and other articles by maintaining tension and preventing slipping, suitable for a wide range of applications beyond traditional fitted sheets.

Implementation Method 1

a cord having two ends is provided that is composed of an elastomeric material configured to deform elastically upon elongation

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS9328799B2Multi-purpose adjustable retaining device

Publication Date: 2016.05.03 BED BAND STORE

AI summary

A multi-purpose adjustable retaining device is disclosed. In one embodiment, a cord having two ends is provided that is composed of an elastomeric material configured to deform elastically upon elongation. Each of ends of the cord are threaded through a cord stop, which permits the length of each end to be adjusted, with any spare cord forming a loop extending from a side of the cord stop opposite the two ends. Suspension clips are respectively slidably connected to each end of the cord in order to grip a material.