Adjustable Sheet Retaining Cord for Long-Lasting Tension
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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 that can be used with various materials, providing a fitted sheet equivalent and maintaining tension.
Engineering Contradictions & Design Principles
Engineering 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
Solution Approach 1:
The patent transitions from elastic material (which degrades) to inelastic cord material (which maintains constant tension). This parameter change in material properties ensures the retaining device maintains its retention effectiveness throughout its service life without the degradation issues of elastic materials.
Solution Approach 2:
The patent introduces an adjustable mechanism that allows the retaining device to be dynamically repositioned and re-tensioned. The cord can be moved along the sheet edge and the tension can be adjusted, providing dynamic adaptability to maintain retention effectiveness over time.
2Adaptability or versatility
If a fixed retaining device is used, then the structure is simple, but it cannot adapt to different sheet sizes or tension requirements
Solution Approach 1:
The retaining device is divided into separate functional components: cord, cord stop, and suspension clips. This segmentation allows each component to be independently adjusted and positioned, providing adaptability while keeping individual components simple in structure.
Solution Approach 2:
The device incorporates dynamic adjustment capabilities through the cord stop mechanism that allows the cord to be repositioned along the sheet edge, and suspension clips that can be adjusted to different positions. This dynamic adjustability enables adaptation to various sheet sizes and tension requirements without requiring complex predetermined mechanisms.
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
The device effectively retains articles like bed sheets, maintaining tension and preventing slipping, thus ensuring comfort and a tidy appearance.
Implementation Method 1
a cord having two ends is provided that is composed of an elastomeric material configured to deform elastically upon elongation
Data Source
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.