Cosmetic Container Inner Lid Frame and Fiber Sheet Design
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Solution Overview
Problem
Conventional cosmetic containers with net inner lids face issues such as difficulty in extracting high viscosity cosmetics without waste, poor usage of container space, and potential leakage due to non-hermetic structures, especially in refill containers designed for portable use.
Innovation Solution
A cosmetic container design featuring a container body with a flat hollow cylindrical frame and a tensioned, penetrable fiber sheet where the frame's lower end is separated from the container body's bottom, allowing for efficient use of space and preventing leakage, with a sealing lid that hermetically seals the container and an exterior case for airtight storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the frame's lower end contacts the bottom of the container body to support the net, then the net structure is stable, but the cosmetic storing space is reduced and cosmetic may leak through the interface
Solution Approach 1:
The invention extracts the frame from direct contact with the container body bottom by introducing a seat structure. The seat is formed integrally with the container body, and the frame rests on this seat rather than contacting the bottom surface directly. This separation creates useful storage space between the frame and container bottom while maintaining structural stability through the seat's support function.
2Strength
If the frame's lower end contacts the bottom of the container body, then the net is supported, but cosmetic may leak out through the interface between the frame and container body
Solution Approach 1:
The invention removes the direct interface between the frame and container body by inserting a seat structure. The frame contacts the seat rather than the container body, eliminating the problematic interface where cosmetic leakage occurred. The seat is designed to support the frame while preventing cosmetic from escaping through gaps between the frame and container body.
Solution Approach 2:
The seat acts as an intermediary element between the frame and the container body. It transfers the load from the frame to the container body structure while preventing direct contact between the frame outer surface and container body inner surface, thereby eliminating the leakage path while maintaining structural support.
3Ease of operation
If the container is made small and thin for portable use, then it is suitable for refill containers, but the storing capacity is reduced
Solution Approach 1:
The invention applies local quality optimization by creating a seat structure only at the specific location where the frame needs support, rather than adding structural elements throughout the entire container. This localized approach maintains the compact, portable design of the container while providing the necessary structural support to maximize usable storage space in the critical region where the frame is positioned.
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
Enables the efficient use of cosmetics without waste, prevents unintended leakage, and maintains the cosmetic's freshness by ensuring an airtight seal, even when the container is not full, thus addressing the limitations of conventional net-equipped containers.
Implementation Method 1
a cosmetic penetrable fiber sheet having elasticity and attached to the frame under tension
Implementation Method 2
a sealing lid being configured to hermetically seal the container body in a state having the inner lid attached
Implementation Method 3
the fiber sheet has a peripheral rim adhered from either an upper end surface or a lower end surface of the frame and along an inner circumferential face of the frame
Data Source
AI summary
A cosmetic container 1a has a container body having an opening above and being configured to store a cosmetic; an inner lid being configured to be attached to the container body; and a sealing lid being configured to hermetically seal the container body in a state having the inner lid attached. The inner lid includes a flat hollow cylindrical frame and a cosmetic penetrable fiber sheet having elasticity and attached to the frame under tension.The frame is fitted to the container body with a lower end of the frame being apart from a bottom surface of the container body. The fiber sheet has a peripheral rim adhered from either an upper end surface or a lower end surface of the frame and along an inner circumferential face of the frame.