Cosmetic Packaging Device with Elastic Seal and Rotating Plate
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Solution Overview
Problem
Existing cosmetic packaging devices face challenges in ensuring a leak-tight closure while maintaining easy opening and closing, especially when containing fluid or powdery products, and often risk dirtying the internal cover, which may have a mirror surface.
Innovation Solution
The packaging device features a tray with an elastically deformable side wall that forms a seal, allowing the plate to move into a closed configuration by sliding against the cover's internal face, and the base's bottom contacts the base, ensuring a leak-tight closure without requiring additional locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealed closure is used to ensure leak-tight closure of the storage compartment, then product leakage is prevented, but the opening and closing operation becomes more difficult
Solution Approach 1:
The closure system is segmented into two independent functional parts: the plate that closes the storage compartment and the cover that provides sealing. The plate can be closed first to secure the product, then the cover is pressed to engage the sealing mechanism. This segmentation allows each component to perform its specific function optimally without interfering with the other's operation.
Solution Approach 2:
The sealing action is prepared in advance by designing the cover and housing with pre-positioned sealing elements. When the user presses the cover onto the base, the sealing surfaces are already aligned and ready to engage, eliminating the need for additional locking actions or complex sealing mechanisms during the closing operation.
2Reliability
If a sealed closure mechanism is implemented to prevent product leakage, then product containment is improved, but the device structure becomes more complex
Solution Approach 1:
The sealing function is extracted from the plate and transferred to the cover-housing assembly. The plate maintains its simple rotational closing action, while the sealing mechanism is implemented separately through the cover's engagement with the housing. This extraction allows the plate to remain simple while achieving reliable sealing through the dedicated sealing structure of the cover.
Solution Approach 2:
The sealing mechanism is designed to be self-actuating through the user's normal closing action. When the cover is pressed onto the base, the elastic deformation of the housing and the geometric relationship between the plate edge and cover internal face automatically engage the sealing surfaces and compress the sealing element, without requiring separate locking mechanisms or additional user actions.
3Reliability
If the plate is designed to close the storage compartment tightly, then product leakage is prevented, but the internal face of the cover may be dirtyed
Solution Approach 1:
A sealing element is introduced as an intermediary between the plate and the cover's internal face. This sealing element (such as a gasket or O-ring) creates the actual sealing contact with the product, preventing direct contact between the product and the mirror surface. The sealing element acts as a mediator that protects the mirror from contamination while maintaining closure tightness.
Solution Approach 2:
The sealing mechanism utilizes flexible sealing elements such as elastomeric gaskets or thin film seals that can deform to create a tight seal against the product container. These flexible sealing components prevent product leakage while forming a barrier that protects the mirror surface from direct exposure to fluid or powdery products.
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
This design provides a leak-tight seal while allowing easy opening and closing, minimizing the risk of product leakage and mirror contamination, and simplifies the packaging structure by eliminating the need for separate locking systems.
Implementation Method 1
the side wall being capable of deforming elastically so as to increase in diameter under the effect of a rapprochement of the bottom and the second axis
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention concerns a device for packaging a cosmetic article (29, 42), comprising: - a base (12) defining a storage compartment for a cosmetic article (29); - a plate (16) that is movable in rotation on the base; - a cover (14) that is movable in rotation on the base. The axis of the plate forms an angle smaller than or equal to 90° with the axis of the cover. A housing provided in the plate (16) comprises a bottom (38) and an elastically deformable side wall (56). In a contact configuration, one edge (54) of the plate is in contact with the inner face (60) of the cover. Moving said cover towards the closed position moves the plate slidingly towards a closed configuration. The bottom (38) of the housing is in contact with the base in the contact configuration. Moving the plate to the closed configuration brings said bottom closer to the axis of the plate.