Elastic Wiper for Non-Circular Cosmetic Rods
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Solution Overview
Problem
Conventional cosmetic containers with wipers are limited to circular cross-sectional areas for application support rods, restricting design variability and visual effects, as they cannot effectively remove cosmetic liquids from non-circular shapes.
Innovation Solution
A cosmetic container with a wiper made of elastic rubber, featuring a cleaner part that narrows towards the end, allowing it to accommodate and wipe non-circular cross-sectional areas, and an airtight recessed groove with an inclined guide surface, enabling easy rotation and secure sealing of the container cap while ensuring proper liquid removal and penetration into engraved patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the application support rod has a circular cross-sectional area to pass through the conventional wiper, then the wiper can remove cosmetic liquid, but the design properties and visual effects are limited
Solution Approach 1:
The wiper is constructed with a flexible elastic body that can deform to accommodate non-circular cross-sectional shapes of application support rods. The flexible material allows the wiper to conform to various rod geometries while maintaining effective contact for cosmetic liquid removal, thus enabling design variety without compromising wiper functionality.
2Adaptability or versatility
If the application support rod has a non-circular cross-sectional area for design variety, then design properties are improved, but the conventional wiper cannot remove cosmetic liquid effectively
Solution Approach 1:
The wiper's elastic body parameters are optimized to enable effective cosmetic liquid removal from non-circular surfaces. By adjusting the elasticity, hardness, and cross-sectional geometry parameters of the wiper material, it can maintain sufficient contact pressure and conformality with application support rods of various non-circular shapes, ensuring reliable liquid removal while supporting design diversity.
3Device complexity
If the container cap rotates with the application support rod during opening/closing, then the structure is simple, but the rotatable opening/closing operation becomes difficult
Solution Approach 1:
The rotational movement function is extracted from the container cap and transferred to the application support rod. The container cap is designed to remain stationary during opening/closing operations, while the application support rod performs the rotation within the container. This separation of functions allows the cap to have a simple structure without compromising operational ease, as the rotation occurs independently in the rod.
4Manufacturing precision
If the wiper has a rigid structure for precise shaping, then manufacturing precision is improved, but it cannot accommodate non-circular cross-sectional areas
Solution Approach 1:
The wiper employs a flexible elastic body that can be precisely manufactured in a specific cross-sectional shape while maintaining the ability to deform and adapt to non-circular application support rods. The flexibility allows the wiper to conform to various rod geometries, and the precise cross-sectional design ensures proper contact and cosmetic liquid removal effectiveness.
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 solution allows for stable and efficient removal of cosmetic liquids from non-circular application support rods, enhancing design variability and providing an advertising effect through engraved patterns, while preventing liquid leakage and ensuring proper application.
Implementation Method 1
a wiper (140), which is made of elastic rubber
Implementation Method 2
the cleaner part with a shape that narrows so as to be curved toward a lower end thereof... is coupled to an inner side of the injection port (112) of the container
Data Source
AI summary
A cosmetic container having a wiper capable of removing a cosmetic liquid from an application support rod having a non-circular cross-sectional area is proposed. The cosmetic container includes a container (110) in which the cosmetic liquid is accommodated, a container cap (120) opened/closed with respect to an injection port (112) of the container (110), and an application part (130) rotatably fitted and coupled to the container cap. The wiper (140) is coupled to an inner side of the injection port (112) of the container, a through-hole (144) of the cleaner part (142) is formed in a circular shape, the application part includes an application support rod (132) and an application member (134), an airtight recessed groove (133) is formed on an upper portion of the application support rod, and the application support rod extended from a lower portion of the airtight recessed groove has a non-circular cross-sectional area.