Rotatable Dual-Cover Cosmetic Container with Integrated Sealing
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Solution Overview
Problem
Cosmetic containers often fail to maintain airtightness, leading to changes in formulation, such as drying and hardening of contents, which affects the efficacy and quality of cosmetic products.
Innovation Solution
A container design featuring a single structure with an inner and outer cover rotatably connected to a middle body, providing primary and secondary sealing, made possible through a double-shot injection molding process for enhanced manufacturing convenience and sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double container structure with inner and outer containers is used, then sealing performance is improved, but device complexity increases
Solution Approach 1:
The patent merges the inner container and outer container into a single integrated container body, eliminating the need for separate nested containers. The container body includes an inner sidewall and outer sidewall that are structurally integrated, providing both primary and secondary sealing functions within a unified structure, thus reducing device complexity while maintaining sealing performance.
Solution Approach 2:
The container body is segmented into functional regions including the inner sidewall, outer sidewall, and intermediate space, with the inner cover providing primary sealing and the outer cover providing secondary sealing. This segmentation allows each component to perform its specific sealing function independently while being part of a unified structure.
2Reliability
If multiple separate components are used for container and covers, then sealing performance is improved, but ease of manufacture deteriorates
Solution Approach 1:
The inner container and outer container are merged into a single container body that can be manufactured as one integrated piece using injection molding. This eliminates the need for separate manufacturing processes for inner and outer containers, reducing manufacturing steps and improving ease of manufacture while maintaining the dual-sealing functionality.
3Ease of manufacture
If a single container structure is used, then ease of manufacture is improved, but sealing performance deteriorates
Solution Approach 1:
The patent employs rotatable covers (inner cover and outer cover) that can dynamically close and seal the container opening. The rotation mechanism allows the covers to move from an open to a closed position, creating dynamic sealing action that enhances sealing performance while being integrated into a single container structure for ease of manufacture.
Solution Approach 2:
The inner cover and outer cover function as flexible sealing elements that can deform and conform to the container opening to create effective seals. These thin-walled components provide flexible sealing surfaces that adapt to the container geometry, ensuring reliable sealing within the single-structure design.
Data Source
AI summary
A container is provided according to an embodiment of the present disclosure. The container may include a container part in which an accommodation space configured to accommodate contents is formed, a middle body configured to communicate with the accommodation space and coupled to the container part to surround at least a portion of the container part, an inner cover rotatably connected to the middle body to open or close the accommodation space, and an outer cover rotatably connected to the middle body to open or close the middle body.