Pneumatic Finger Holding Case for Nail Drawing Apparatus
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Solution Overview
Problem
Conventional drawing apparatuses for nail designs struggle to reliably hold fingers of varying thickness and shape, as mechanical structures can be complex and fail to gently secure the finger, leading to movement and discomfort.
Innovation Solution
A drawing apparatus with a holding case and annular section that uses fluid supply to circumferentially press and hold the finger, providing a softer and more secure grip by expanding to fit the finger's circumference, suppressing movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical structures are used to hold the finger, then the finger can be secured, but the structure becomes complex and the finger is not held gently
Solution Approach 1:
The patent uses a balloon member that is inflated with gas to expand and gently hold the finger. The gas supply unit supplies gas to the balloon member, causing it to expand and press against the finger with uniform pressure, providing reliable holding without complex mechanical structures. This replaces traditional mechanical clamps or holders with a pneumatic inflation system.
2Reliability
If the finger is pressed against the upper wall with cushion reaction force, then the finger can be held, but the structure cannot adequately hold fingers of varying thickness and shape
Solution Approach 1:
The balloon member is designed to be dynamically adjustable through gas inflation. By controlling the amount of gas supplied, the balloon member can expand to different sizes and shapes, adapting to fingers of varying thickness and shape. This dynamic adjustment capability allows the same structure to effectively hold different finger dimensions without requiring multiple fixed-size holders.
Solution Approach 2:
The patent changes the physical state and volume of the balloon member by controlling gas pressure and volume. By adjusting these parameters, the balloon member can adapt its size and pressure to match different finger dimensions, providing reliable holding for various finger types. The gas supply unit enables continuous parameter adjustment to optimize the holding effect for each user.
3Reliability
If the finger is pressed against the upper wall, then the finger can be held, but the finger easily moves from side to side
Solution Approach 1:
The balloon member acts as a flexible shell that can conform to the finger's shape and provide uniform circumferential support. Unlike rigid walls that create pressure points and allow lateral movement, the flexible balloon member distributes pressure evenly around the finger, preventing side-to-side movement while maintaining comfort. The flexibility allows it to adapt to the finger's contours without creating uncomfortable rigid contact points.
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 apparatus effectively suppresses finger movement and provides a softer, more comfortable hold, ensuring accurate nail design application regardless of finger thickness and shape.
Implementation Method 1
the annular section circumferentially presses the finger or toe and suppresses movement of the finger or toe by supplying of a fluid to the annular section
Data Source
AI summary
A drawing apparatus and a control method of a drawing apparatus that can suppress the movement of a finger inserted in a finger insertion section more reliably and also hold the finger more softly are provided. The drawing apparatus includes: a finger holding case including a finger insertion section in which a finger is inserted and an opening through which the nail of the finger is exposed at the position facing a drawing head section; and a finger holding section located in the finger holding case and including an annular section, wherein a fluid is supplied to the annular section to circumferentially press the finger and suppress the movement of the finger, and the fluid is discharged from the annular section to release the press.