Dual-Container Mascara Pump Structure to Prevent Drying
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Solution Overview
Problem
Conventional mascara containers face issues with mascara liquid drying and hardening quickly, leading to inconvenient use and the need for complex structures to prevent air contact.
Innovation Solution
A cosmetic container design featuring a first container with a pump module, a brush shaft, and a second container, utilizing elastic members and flexible materials to maintain pressure and prevent drying, allowing for convenient mixing and dispensing of cosmetic liquids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mascara container is sealed to prevent air contact, then the mascara liquid can be protected from drying and hardening, but the container structure becomes complicated
Solution Approach 1:
The container is divided into two separate containers: a first container for holding mascara liquid and a second container for holding dilution liquid. This segmentation allows each container to have a simpler structure while collectively solving the drying problem through the ability to dilute hardened mascara.
Solution Approach 2:
A pump module is introduced as an intermediary mechanism that enables controlled dispensing of mascara liquid to the brush shaft. This intermediary component simplifies the overall sealing structure by providing a reliable, automated method for liquid transfer without requiring complex manual opening/closing mechanisms.
2Ease of operation
If the cosmetic liquid is dispensed to the brush portion, then the user can apply the cosmetic, but the liquid on the brush undergoes drying and hardening
Solution Approach 1:
The pump module is pre-configured to dispense mascara liquid directly onto the brush shaft before use. This preliminary action ensures the brush is properly loaded with cosmetic liquid, and the accompanying dilution liquid is ready to be added if the liquid begins to harden during use.
Solution Approach 2:
The system allows changing the physical parameters of the cosmetic liquid by adding dilution liquid from the second container. This parameter change (increasing liquid volume, decreasing concentration) restores the proper consistency of mascara on the brush shaft, enabling continued ease of operation.
3Reliability
If the container maintains pressure to prevent drying, then the cosmetic liquid remains fresh, but pressure control becomes difficult
Solution Approach 1:
The pump module is designed to automatically maintain appropriate pressure within the first container during normal operation. This self-service mechanism eliminates the need for external pressure control systems, sensors, or complex regulation mechanisms while keeping the cosmetic liquid fresh and properly pressurized.
Solution Approach 2:
The system uses pneumatic principles where the pump module creates and maintains pressure differential to control liquid flow. This hydraulic/pneumatic approach provides automatic pressure regulation without mechanical complexity, using fluid pressure itself to control the dispensing process.
4Stress or pressure
If the container allows air flow to maintain pressure, then pressure levels are stable, but the cosmetic liquid may dry out
Solution Approach 1:
The system creates a controlled environment within the containers that protects the cosmetic liquid from harmful air contact while maintaining stable pressure. The pump module and container sealing work together to establish an inert-like environment that prevents drying while allowing pressure equilibrium.
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 design effectively prevents drying and hardening of cosmetic liquids, enabling easy dilution and use of hardened mascara, while maintaining a suitable pressure level and preventing leakage.
Implementation Method 1
a first elastic member for elastically supporting the first container such that the first container is movable relative to the brush shaft
Implementation Method 2
a second elastic member for elastically supporting the brush shaft such that the brush shaft is movable relative to the overcap between a first position and a second position
Implementation Method 3
a pump module, which is disposed within the overcap, is coupled to an opening of the first container and the brush shaft so as to dispense the first content from the first container to the discharge channel
Data Source
AI summary
A cosmetic container includes a first container holding a first content, an overcap in which the first container is arranged, a brush shaft including a brush shaft head and a brush shaft body, a pump module that is coupled to an opening of the first container and the brush shaft so as to dispense the first content and includes a first elastic member for elastically supporting the first container, a second container which is separably coupled to the overcap and configured to hold a second content and within which a portion of the brush shaft body may be inserted, and a container packing which is coupled to a neck part of the second container and has a lower portion in which a through-hole is formed to accommodate the brush shaft body inserted therethrough.