Tapered Partition Wall for Stable Finger Positioning in Nail Printers
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Solution Overview
Problem
Existing nail print apparatuses cause discomfort and instability for users as other fingers are forced into a tight, bent position while trying to hold the print target finger in place, leading to stress and difficulty in maintaining a stable printing position.
Innovation Solution
A nail print apparatus design featuring a partition wall with a tapered shape that allows one finger to be stably held in a print position while keeping other fingers relaxed, with a printing section that includes a printing head for applying ink to the nail, and a unique finger receiving section configuration that accommodates both print and non-print fingers without applying excessive force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If other fingers are pressed to the front face of the case main body to hold the print target finger in place, then the print target finger can be stabilized in the predetermined position, but the other fingers become tightened and experience stress and discomfort
Solution Approach 1:
The finger receiving space is divided into two separate compartments by a partition wall: a first finger receiving section for the print target finger and a second finger receiving section for other fingers. This segmentation allows each finger to be held independently, stabilizing the print target finger while keeping other fingers relaxed without requiring them to be pressed against the case main body.
Solution Approach 2:
The partition wall acts as an intermediary structure between the print target finger and other fingers. It provides a physical barrier that isolates the print target finger in the first section while allowing other fingers to be held in the second section without applying stress to them, thus mediating between the need for stability and user comfort.
2Device complexity
If other fingers are placed bent in the front face of the case main body, then the apparatus structure is simplified, but the other fingers are in a tight state and it is difficult to stably hold the print target finger
Solution Approach 1:
The partition wall divides the finger receiving area into distinct sections, creating a structured organization that simplifies the overall apparatus design while providing stable positioning for the print target finger. The segmented structure allows for clear functional separation without increasing complexity.
Solution Approach 2:
The partition wall has different thicknesses at different locations, with a thinner portion at the front end and a thicker portion at the rear end. This local variation in quality provides appropriate support and positioning characteristics at different positions, enabling stable holding of the print target finger while maintaining structural simplicity.
3Ease of manufacture
If a partition wall with uniform thickness is used, then the manufacturing process is simplified, but it cannot provide appropriate support at different positions for stable finger holding
Solution Approach 1:
The partition wall is designed with varying thickness along its length, having a thinner portion at the front end and a thicker portion at the rear end. This local quality variation provides appropriate support characteristics at different positions to stabilize the print target finger while the manufacturing process remains relatively simple by using a single-piece construction with molded thickness variations.
Solution Approach 2:
The partition wall's geometric parameter (thickness) is changed along its length, transitioning from thin at the front to thick at the rear. This parameter change enables the partition wall to provide appropriate mechanical support at different positions for stable finger holding while maintaining ease of manufacture through integrated design.
Data Source
AI summary
A nail print apparatus which prints on a nail. The nail print apparatus includes a partition wall and a printing section. A first surface of the partition wall is in contact with at least one first finger inserted on the first surface. A second surface of the partition wall is in contact with at least one second finger, which is different from the first finger, inserted on the second surface. The first surface and the second surface are held between the first finger and the second finger from a first end of the partition wall. A thickness of the partition wall between the first surface and the second surface increases from the first end toward a second end opposite to the first end.