Convex Hand Rest Angling Fingers for Stable Polish Application
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Solution Overview
Problem
Individuals face challenges in achieving a professional-quality manicure when doing their own nails due to lack of access to professional-grade tools, difficulty in maintaining the desired brush angle, and unsteady hands, leading to uneven polish application and 'pooling' near the cuticle.
Innovation Solution
A hand rest device with a convex upper surface and flat lower surface that angles the fingers at approximately 45 degrees, allowing the nail polish brush to be held at 70 to 90 degrees with respect to the nail, stabilizing the hand and preventing polish from pooling near the cuticle, and optionally including a weight for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wrist rest is used to support the hand, then comfort is improved, but the hand and fingers remain unstable and can move up and down
Solution Approach 1:
The hand rest is divided into multiple functional zones: a wrist support portion and a finger support portion with multiple contours. This segmentation allows each zone to independently support different parts of the hand, providing both comfort and stability simultaneously.
Solution Approach 2:
The hand rest features multiple contours including a first contour for the wrist and second contours for the fingers. These curved surfaces conform to the natural shape of the hand, distributing pressure evenly and preventing hand movement while maintaining comfort.
2Stability of the object's composition
If the fingers rest flat on a surface, then stability is improved, but the brush angle cannot be maintained at 70 to 90 degrees
Solution Approach 1:
The finger support portion includes multiple contours that angle the fingers downward at approximately 45 degrees. This curvature allows the brush to be held at the optimal 70 to 90 degree angle relative to the nail while the hand remains stable on the rest.
Solution Approach 2:
The hand rest introduces a new dimensional aspect by elevating and angling the fingers in three-dimensional space. This creates the proper geometry for brush application without requiring the fingers to rest flat, thus maintaining both stability and proper brush angle.
3Ease of operation
If the hand is positioned for self-manicure, then convenience is improved, but precision and evenness of polish application deteriorate
Solution Approach 1:
The hand rest is specifically designed for self-manicure applications, allowing the user to comfortably position their own hand for polishing. The multiple contours and finger support portions provide the stability needed for precise polish application even when performing the task oneself.
Solution Approach 2:
Instead of requiring the user to move their hand and arm to achieve proper positioning, the hand rest inverts the approach by providing a stable platform that positions the hand correctly. This allows the brush to be applied with proper angle and precision while the hand remains stationary and supported.
Data Source
AI summary
A hand rest device for use during the application of nail polish comprising a front, a back, a right side, a left side, a top surface, and a bottom surface, with said top surface configured in a generally convex shape having a rounded peak positioned near the back half of the top surface longitudinally and about the middle of the top surface laterally. The top surface of the device curves down from said peak to an outer edge of the hand rest device. The bottom surface is configured with a curved portion from the outer edge of the hand rest device (around the perimeter) down to a generally flat portion, the generally flat portion further comprising a plurality of rubber pads. The device could include a weight inside.