Hand Exerciser Projections for Isolated Finger Resistance
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Solution Overview
Problem
Existing hand exerciser devices lack the ability to isolate finger exercises and are made from materials that exude oil during use and storage, limiting their effectiveness and user experience.
Innovation Solution
A hand exerciser device with a body featuring a thumb opening and finger openings, including independently depressible projections mounted on an arcuate bar, allowing for individual finger exercises and made from non-exuding resilient materials like silicone polymers, which can vary in resistance by adjusting the plasticizer content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a central enlarged portion is used for resistance, then overall hand squeezing is achieved, but individual finger exercise isolation is not possible
Solution Approach 1:
The central enlarged portion is segmented into multiple projections (first, second, third, and fourth projections) that can be independently depressed. Each projection corresponds to a specific finger opening, allowing individual finger exercise isolation while maintaining the unified body structure. This segmentation enables targeted finger strengthening without requiring multiple separate devices.
2Strength
If copolymeric materials plasticized with oil are used, then desired elasticity and resistance are achieved, but oil exudation occurs during use and storage
Solution Approach 1:
The material composition parameters are modified by adjusting the plasticizer content within a specific range (5-20 parts by weight per 100 parts by weight of copolymer). This parameter optimization provides the desired elasticity and resistance to deformation while preventing oil exudation during use and storage, eliminating the harmful effect without sacrificing mechanical performance.
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
Enables targeted finger exercises and rehabilitation with customizable resistance levels, preventing oil exudation and providing a more effective and user-friendly hand strengthening experience.
Implementation Method 1
a hand exerciser comprising a body having a thumb opening and a plurality of finger openings... Between the finger openings and the thumb opening, there is provided at least one and preferably a corresponding number of projections, which can be independently depressed and manipulated by the fingers
Implementation Method 2
The commercial embodiment of the device disclosed in U.S. Pub. No. 2009/0156367 A1 is formed of copolymeric materials that are plasticized with an oil... Resistance to deformation also occurs when the user spreads his or her fingers apart
Data Source
AI summary
A hand exerciser device that includes a body having a thumb opening and a plurality of finger openings spaced apart from the thumb opening. Between the finger openings and the thumb opening, there is provided at least one and preferably a corresponding number of projections, which can be independently depressed and manipulated by the fingers.