Rotating Sleeve Powder Cosmetic Brush Mechanism
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Solution Overview
Problem
Conventional powder cosmetic brushes face issues with inconvenient powder discharge due to complex structures, high manufacturing costs, and accidental powder release during storage or use, as well as clogging from moisture.
Innovation Solution
A powder cosmetic brush design featuring a sleeve that rotates with a hair holder to open or close powder discharge holes, simplifying the mechanism and reducing manufacturing costs by using a cylindrical bottle with a male screw, a body with female screw and powder discharge holes, and a filter to control powder flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vertical transfer shaft with spring and button is used to discharge powder, then powder can be discharged continuously, but the structure becomes complicated and manufacturing costs increase
Solution Approach 1:
The patent removes the complex vertical transfer shaft, spring, and button mechanism from the conventional design. Instead, it uses a simple sleeve that rotates with the hair holder to open or close the discharge hole, extracting the essential function (powder discharge control) while eliminating unnecessary complexity
Solution Approach 2:
Instead of using a complex mechanism to continuously discharge powder, the invention inverts the approach by using a simple rotating sleeve to selectively open or close the discharge hole. The powder discharge is achieved by rotating the sleeve to align the discharge hole with the powder storage chamber, rather than using continuous mechanical transfer
2Ease of operation
If a button protrudes continuously due to spring elasticity, then powder can be discharged easily, but accidental powder discharge occurs during storage or collision
Solution Approach 1:
The patent makes the discharge hole dynamic by rotating the sleeve, which can be positioned to either open or close the discharge hole. This dynamic control allows the user to intentionally discharge powder when needed while preventing accidental discharge during storage, as the discharge hole remains closed unless deliberately opened by rotation
3Adaptability or versatility
If powder is stored in a container and discharged through a discharge hole, then powder can be applied to the brush, but the structure for opening and closing the discharge hole becomes complicated
Solution Approach 1:
The patent merges the functions of the discharge hole opening and closing mechanism with the hair holder rotation. The sleeve is coupled to the hair holder, so rotating the hair holder automatically rotates the sleeve, which in turn opens or closes the discharge hole. This merging of functions eliminates the need for separate complex opening and closing mechanisms
Data Source
AI summary
Provided is a cosmetic brush. The cosmetic brush includes a cylindrical bottle, a body, a hair holder, a filter, a sleeve, and a cap. When makeup is applied, the sleeve descends. When the sleeve is stored, the sleeve ascends to easily close the cap. When the sleeve descends, a powder is supplied toward hairs. When the sleeve ascends (is stored), the supply of the powder is intercepted to prevent the powder from being unnecessarily discharged, thereby preventing other portable products from being damaged. Also, when the sleeve is stored, the sleeve blocks the powder discharge hole to prevent the powder remaining within the discharge hole from being hardened by moisture, thereby smoothly discharging the powder.