Sharp-Type Paint Marker Pen With Bernoulli Ink Discharge
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Solution Overview
Problem
Existing marker pens using acrylic nibs are expensive, prone to damage, and inefficient due to ink flow issues caused by external atmospheric pressure and surface tension, leading to inconvenient use and contamination.
Innovation Solution
A sharp type paint marker pen utilizing a discharge structure based on the Bernoulli's principle, incorporating a polyester nib, and enabling easy ink discharge through a pressing motion, allowing for high viscosity ink application and expansion into other industries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If acrylic nibs are used to reinforce the nib structure, then the reliability is improved, but the product cost increases
Solution Approach 1:
The patent uses inexpensive polyester nibs instead of expensive acrylic nibs. The nibs are designed to be replaceable when worn, embracing the disposable concept to reduce manufacturing costs while maintaining adequate functionality through periodic replacement rather than requiring expensive durable materials.
Solution Approach 2:
The patent changes the material parameter from acrylic to polyester, and modifies the nib structure parameters including adding a reinforcement rib and optimizing the cross-sectional shape. These parameter changes allow polyester material to achieve sufficient durability without requiring expensive acrylic materials.
2Ease of operation
If the ink tank is pressed downward to make ink flow out, then the ink discharge function is improved, but external atmospheric pressure and surface tension prevent ink from flowing out
Solution Approach 1:
The patent extracts and eliminates the harmful effect of atmospheric pressure resistance by designing a discharge structure where ink flows through an annular passage between the inner rod and ink tank wall. This configuration allows ink to be discharged without needing to overcome external atmospheric pressure, as the flow path is created by the relative movement between components rather than by pressing against atmospheric pressure.
Solution Approach 2:
The patent introduces an annular passage as an intermediary flow path between the ink tank and the external environment. This intermediate channel allows ink to flow smoothly by utilizing the pressure differential created during pressing motion, rather than directly confronting atmospheric pressure at the discharge point.
3Productivity
If the front portion (nib) is pressed to release ink, then the ink discharge function is improved, but the nib is easily damaged
Solution Approach 1:
The patent segments the pressing function from the nib structure. Instead of pressing the nib directly to discharge ink, the design separates these functions: the nib remains stationary while the inner rod and ink tank move relative to each other to create the ink flow. This segmentation protects the nib from mechanical damage while maintaining ink discharge capability.
Solution Approach 2:
The patent inverts the traditional ink discharge mechanism. Rather than pressing the nib forward to push ink out, the design moves the ink tank and inner rod relative to each other to create ink flow through the annular passage. This inversion protects the nib from direct pressing forces while achieving the same ink discharge function.
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
Enhances operational efficiency, reduces material costs, and expands product applicability by using a relatively inexpensive polyester nib, enabling high viscosity ink and applications like manicure.
Implementation Method 1
an ink is allowed to be easily discharged through the Bernoulli's principle in accordance with a pressing motion of an ink tank
Data Source
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AI summary
The present disclosure relates to a sharp type paint marker pen in which the convenient use thereof is provided because an ink is easily discharged through the Bernoulli's principle in accordance with a pressing action of an ink tank, the operation efficiency thereof is increased, a relatively inexpensive polyester nib is also able to be used instead of an expensive acrylic nib, a product lineup is able to be expanded using a watercolor marker or the like when a brush nib is applied, a high viscosity ink is also able to be applied, and it is also able to be expanded into other industries such as manicure.