Cosmetic Applicator Side Control Button Ratchet Mechanism
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Solution Overview
Problem
Conventional cosmetic applicators, such as lipstick tubes, require two-handed operation for material discharge, making them inconvenient for use.
Innovation Solution
A cosmetic applicator with a side control button and a ratchet-like screw rod mechanism that allows for one-handed operation by engaging a driving element with a protruding push edge and elastic reset, enabling bit-by-bit material discharge through continuous button pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional tube-type cosmetic applicator with rotation part is used, then the cosmetic material can be exposed for application, but both hands operation is required causing inconvenient use
Solution Approach 1:
The cosmetic applicator is divided into functional segments: a control button for one-handed operation, a driving element that converts rotational motion to linear motion, and a ratchet mechanism for unidirectional control. This segmentation allows the complex function of material discharge to be achieved through simple button presses rather than manual rotation
Solution Approach 2:
A driving element acts as an intermediary between the control button and the cosmetic material. When the button is pressed, it rotates the driving element which then translates this rotation into linear movement of the cosmetic material through engagement with the ratchet mechanism, enabling indirect control that simplifies user operation
2Reliability
If the cosmetic material is exposed for application, then makeup can be applied, but accidental discharge and safety issues occur
Solution Approach 1:
The ratchet mechanism provides preliminary anti-action by allowing motion in only one direction. The cosmetic material can be discharged forward when the button is pressed, but cannot accidentally retract or discharge backward, preventing unintended material release while maintaining easy one-handed operation
Solution Approach 2:
The system transitions from a static exposed material state to a dynamic controlled discharge state. The control button and driving element create a dynamic mechanism where material discharge is activated only when needed through deliberate button pressing, rather than being continuously exposed or requiring complex manipulation
3Measurement precision
If bit-by-bit material discharge is achieved through driving element engagement, then precise control is obtained, but device structure becomes more complex
Solution Approach 1:
The driving element engages with the ratchet mechanism in periodic cycles with each button press. This periodic engagement delivers precise, controlled amounts of cosmetic material incrementally, allowing users to build up color intensity gradually while the repetitive mechanical action simplifies the overall control mechanism
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
Enables stable and accurate one-handed discharge of cosmetic material, preventing accidental discharge and ensuring safe storage of the cosmetic material after use.
Implementation Method 1
an outside of the driving element inside the long tube body is configured with an elastic element adapted for the reset assistance of the driving element after slid vertically
Data Source
AI summary
A cosmetic applicator having a side control button includes a pencil-like long tube body, one end of which is engaged with a pencil head-like material holder, in which a slotted seat for the accommodation of a lipstick strip is inserted; the inside of the long tube body is configured with a screw rod, one end of which is connected to the slotted seat; one side of the long tube body is configured with a control button, which is pressed down to drive the screw rod to move the slotted seat toward the top edge of the material holder; the screw rod is turned relatively to the long tube body through the material holder, allowing a ratchet surface of the screw rod to be engaged or released, thereby achieving one-handed operation for material discharge or retreat.