Press-Type Makeup Pen Button Mechanism for One-Handed Discharge
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Solution Overview
Problem
Existing cosmetics such as lipsticks, lip glosses, and eyeliners require two-handed operation for discharge due to their rotating mechanism, which is inconvenient and can lead to material waste.
Innovation Solution
A press-type makeup pen with a drive assembly featuring a button that allows single-handed unidirectional discharge, utilizing a sleeve, material loading member, and threaded rod for synchronized axial movement, ensuring convenient and controlled material discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotating mechanism is used for cosmetic discharge, then the cosmetic can be discharged from the container, but two-handed operation is required which reduces convenience
Solution Approach 1:
The patent inverts the traditional rotating mechanism by introducing a pressing button that moves axially to drive cosmetic discharge. Instead of rotating the container base or body to discharge cosmetic, the user presses a button that moves linearly, which through the threaded rod and connecting rod mechanism drives the cosmetic outward. This inversion transforms a two-handed rotating operation into a single-handed pressing operation, significantly improving ease of operation.
Solution Approach 2:
The pressing mechanism is designed to be self-operating through the button press. When the user presses the button, the elastic member compresses and stores energy, while the threaded rod converts the axial pressing motion into rotational motion of the connecting rod, which automatically drives the cosmetic discharge without requiring the user to manually rotate any components. The system serves itself through the mechanical conversion of the simple pressing action.
2Loss of substance
If a rotating mechanism is used for cosmetic discharge, then the cosmetic can be discharged, but material waste and pollution increase due to difficult control
Solution Approach 1:
The pressing button mechanism allows for partial action in cosmetic discharge. Each button press can be controlled to discharge a precise, limited amount of cosmetic through the threaded rod's lead angle. The elastic member provides a controlled release mechanism that prevents excessive discharge. Users can press the button multiple times for multiple small doses rather than one large uncontrolled discharge, reducing material waste and improving discharge control.
3Ease of manufacture
If the sleeve is made rotatable in the body assembly, then the material loading member can be driven to retract, but the structure becomes more complex
Solution Approach 1:
The patent merges the retracting function of the material loading member with the discharge function of the threaded rod mechanism. The connecting rod serves dual purposes: it converts the axial motion of the threaded rod into rotational motion, and simultaneously drives both the cosmetic discharge and the sleeve rotation for retraction. This merging of functions reduces the number of separate mechanisms needed, simplifying the overall structure while maintaining the retraction capability.
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 press-type makeup pen enables single-handed operation, reduces material waste, and simplifies the structure while preventing accidental discharge, thus enhancing user convenience and reducing manufacturing costs.
Implementation Method 1
an elastic member, and a rotating member; the ratchet is fixedly provided in the button; the ratchet and the ratchet wheel are movably provided in the ratchet seat; the ratchet is engaged with the ratchet wheel; the rotating member is sleeved on the threaded rod and threadedly connected to the threaded rod; the rotating member abuts against the body assembly; the elastic member is provided between the rotating member and the ratchet wheel
Implementation Method 2
the material loading member is threadedly connected to the threaded rod; the threaded rod is threadedly connected to the drive assembly; the sleeve can drive the material loading member to rotate synchronously, such that the material loading member moves along an axial direction of the threaded rod
Implementation Method 3
the ratchet is engaged with the ratchet wheel; the ratchet can drive the ratchet wheel to rotate; and the ratchet wheel can drive the rotating member to rotate
Data Source
AI summary
A press-type makeup pen includes a nib assembly, a body assembly, a discharge assembly, and a drive assembly, where the nib assembly includes a sleeve; the discharge assembly includes a material loading member and a threaded rod; the sleeve is rotatably provided in the body assembly; the drive assembly is provided in the body assembly; the material loading member is threadedly connected to the threaded rod; the threaded rod is threadedly connected to the drive assembly; the sleeve can drive the material loading member to rotate synchronously, such that the material loading member moves along an axial direction of the threaded rod to retract into the threaded rod; and the drive assembly can drive the threaded rod to move toward a free end of the sleeve along an axial direction of the sleeve. A button of the drive assembly is provided on a tail portion of the makeup pen.