Elastic Stocking Aid With Smooth Lining and Leg Tensioning
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Solution Overview
Problem
Existing aids for pulling on and off elastic stockings, particularly therapeutic elastic stockings, face challenges in removing the stockings due to high friction and potential damage, as they require significant force and can slip off the foot during application, necessitating a solution for easy and frictionless removal.
Innovation Solution
A flexible, tube-like aid with a smooth peripheral body and lining, equipped with tensioning means such as elastic bands, allows for secure attachment around the leg, enabling easy sliding and removal of the stocking by utilizing the smooth material properties and adjustable tensioning for minimal friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the aid is made with smooth material to reduce friction during stocking removal, then the ease of operation is improved, but the aid may slip off the foot during application
Solution Approach 1:
The aid is divided into two distinct functional parts: a smooth peripheral body for low-friction stocking removal, and a separate rough tensioning band for secure foot anchoring. This segmentation allows each part to optimize its surface properties for its specific function without compromise.
Solution Approach 2:
Different surface qualities are applied to different parts of the aid: the peripheral body has a smooth surface for easy stocking sliding, while the tensioning band has a rough surface for secure grip on the foot. This local differentiation resolves the contradiction between smoothness and grip.
2Strength
If the stocking is pulled off tightly to ensure therapeutic effect, then the compression force is improved, but the force required for removal increases and causes damage
Solution Approach 1:
The aid acts as an intermediary tool between the user and the stocking during removal. By placing the foot inside the aid and using the tensioning band to anchor it, the aid mediates the removal process, allowing the stocking to be peeled off gradually with minimal force while protecting both the leg and stocking from damage.
Solution Approach 2:
The tensioning band is activated in advance during the removal process to secure the aid to the foot before the stocking is fully removed. This preliminary anchoring action prevents the aid from slipping and ensures controlled, damage-free removal throughout the entire process.
3Ease of operation
If a separate aid for removal is used, then the ease of operation for removal is improved, but the device complexity increases
Solution Approach 1:
The aid is designed as a universal tool that combines both stocking application and removal functions in a single device. The peripheral body and tensioning band work together to enable both putting on and taking off stockings, eliminating the need for separate aids and reducing overall device complexity.
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 aid facilitates effortless pulling on and off of elastic stockings with reduced force exertion, preventing damage and ensuring the aid remains in position during use, providing a single tool for both applications without causing confusion or inconvenience.
Implementation Method 1
the aid also comprises tensioning means with which the aid can be secured at least temporarily round a leg
Implementation Method 2
a flexible, tube-like aid with a smooth peripheral body and lining... utilizing the smooth material properties and adjustable tensioning for minimal friction
Data Source
Figure 1
Figure 2A~2B
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AI summary
The invention relates to an aid for pulling elastic stockings on and off. The aid comprises a flexible, tube-like peripheral body of a smooth material with an insertion end for a foot. The peripheral body is provided with a lining of a smooth material which is attached to the peripheral body at the position of the insertion end and can otherwise be moved freely relative to the peripheral body from an inward folded position, in which the lining is situated in the peripheral body, to an outward folded position in which the lining is situated outside the peripheral body. The peripheral body further comprises tensioning means with which the aid can be secured at least temporarily round a leg. This makes the aid suitable for both pulling on and pulling off elastic stockings.