Flexible Membrane Cosmetic Case with Radial Slits
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Solution Overview
Problem
Compact cosmetic containers face issues with powder content dispersion and uneven application due to exposure when the container is opened unintentionally or subjected to impact, and compressed forms make it difficult to dab the powder effectively.
Innovation Solution
A compact cosmetic case design featuring a flexible membrane with radial slits and a mesh member that changes shape under pressure, coupled with a secure lid and base system, prevents accidental spillage and allows controlled dispensing of the content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the compact container holds powder content in exposed form, then the powder can be easily dabbed onto a puff, but the powder content is at risk of being dispersed in the air or sticking to nearby objects
Solution Approach 1:
The patent uses a flexible membrane with slit(s) that covers the powder content. The membrane can be pressed to open the slit for dispensing powder onto a puff, then returns to its closed state to prevent dispersion and contamination. This resolves the contradiction by providing both easy access for dabbing and protection against harmful factors.
Solution Approach 2:
The membrane transitions from a closed state (preventing powder dispersion) to an open state (allowing powder dispensing) and back to closed state. This dynamic behavior enables the system to alternate between protection and ease of operation, resolving the contradiction between preventing contamination and enabling easy dabbing.
2Object-affected harmful factors
If the compact container holds content in compressed pressed powder form, then the risk of content being spilt or dispersed is reduced, but it becomes difficult to dab the powder with a puff and apply evenly
Solution Approach 1:
The flexible membrane with controllable slit(s) allows the pressed powder to remain compressed and protected during storage, then enables easy dispensing when the membrane is pressed to open the slit. This resolves the contradiction by maintaining protection during storage while enabling ease of operation during use.
Solution Approach 2:
The dynamic opening and closing of the membrane slit allows the system to maintain compressed powder form for prevention of spillage, then transition to an open state that enables easy dabbing and even application. This dynamic behavior resolves the contradiction between protection and ease of operation.
3Object-affected harmful factors
If the compact container is opened unintentionally or subjected to impact, then the content may be spilled out, but keeping the container always closed prevents access to the content
Solution Approach 1:
The flexible membrane with slit(s) provides a controllable barrier that remains closed to prevent spillage from accidental opening or impact, but can be intentionally opened by pressing to access the powder content. This resolves the contradiction by providing both protection and controlled access.
Solution Approach 2:
The membrane's dynamic state (closed vs. open) allows the system to prevent accidental spillage while enabling intentional access. The user can control when the slit opens, resolving the contradiction between protection during storage and access during use.
4Manufacturing precision
If a mesh member is added to improve content control and even application, then the dispensing quality improves, but the device complexity increases
Solution Approach 1:
The mesh member is integrated with the membrane structure, combining the functions of content containment, controlled dispensing, and even application distribution into a single integrated component. This reduces the overall device complexity while achieving improved manufacturing precision for even powder application.
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 content spillage when not in use and allows easy, controlled dispensing, ensuring secure and watertight coupling while maintaining even application of the powder or liquid content.
Implementation Method 1
a membrane part, which is configured to cover the open top of the holding space, is made from a material capable of elastic deformation, and in which a slit is formed; and a mesh member that is arranged over the membrane part... where a pressure applied from above on the membrane part can cause a change in at least one of the shape and size of the slit
Data Source
AI summary
A compact cosmetic case that uses a flexible membrane is disclosed. The compact cosmetic case includes: a container body, on an inner side of which a holding space having an open top is formed; a rubber member that is coupled to the container body and includes a membrane part, which is configured to cover the open top of the holding space, is made from a material capable of elastic deformation, and in which a slit is formed; and a mesh member that is arranged over the membrane part and has multiple pores formed therein, with the mesh member configured such that a portion thereof is secured to the container body, where a pressure applied from above on the membrane part can cause a change in at least one of the shape and size of the slit.