Cosmetic Container Hinge Inversion for Finger Interference
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Solution Overview
Problem
Conventional cosmetic containers with hinge structures often interfere with the user's finger when opening, are not compact, and lack convenience in accessing the mirror while applying cosmetics, leading to instability and limited space for additional features.
Innovation Solution
A cosmetic container design featuring a magnetic coupling system, a hinge structure with a shaft insert part protruding from the main body, and a support groove that allows the cover to open at an angle between 110 to 130 degrees, eliminating interference and enabling a compact, stable, and convenient design with additional space for features like an auxiliary container and applicator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional hinge structure is used on the rear surface of the main body, then the cover can be coupled to the main body, but the hinge structure interferes with the user's finger when opening and reduces the opening angle
Solution Approach 1:
The hinge structure is inverted from the conventional rear-surface mounting to a front-surface mounting on the main body. The shaft insert part protrudes from the front surface rather than the rear surface, which eliminates finger interference during opening while maintaining the coupling function between cover and main body.
Solution Approach 2:
The hinge shaft is positioned in a different spatial dimension by protruding from the front surface of the main body rather than the rear surface. This dimensional change allows the cover to open at a larger angle (110-130 degrees) without the hinge structure interfering with the user's finger.
2Reliability
If a conventional opening and closing structure with a button locker is used, then the cover can be secured to the main body, but it reduces the internal space of the container
Solution Approach 1:
The button locker mechanism is extracted and repositioned to the front surface of the main body rather than being integrated into the internal structure. This extraction allows the locking function to be maintained while freeing up internal storage space within the container.
Solution Approach 2:
The shaft coupling part acts as an intermediary element that provides the opening and closing function externally. By using this intermediary structure on the front surface, the main body's internal volume is preserved while still achieving secure closing.
3Ease of operation
If the cover opens at a small angle, then the container remains compact, but the user cannot easily access the mirror for makeup application
Solution Approach 1:
The hinge mounting surface is inverted from the rear to the front of the main body, which changes the pivot point position. This inversion enables the cover to open at a larger angle (110-130 degrees) while keeping the container's overall height compact, providing easy mirror access for makeup application.
4Adaptability or versatility
If additional features like applicator and storage container are added, then functionality is improved, but the overall size of the container increases
Solution Approach 1:
The storage container and applicator are nested within the main body's internal space. The storage container fits into the hollow space of the main body, and the applicator is stored within the storage container, allowing multiple features to be integrated without significantly increasing the overall container size.
Solution Approach 2:
The main body serves multiple functions: it acts as the structural housing, provides internal storage space for the storage container, and offers attachment points for the applicator. This multi-functionality allows diverse features to be incorporated while maintaining a compact overall size.
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 enhances user convenience by allowing easy access to the mirror, reduces the container's size, and provides additional space for cosmetics and features without increasing the overall size, improving stability and usability.
Implementation Method 1
The main body and the cover may magnetically coupled to each other on an opposite side of the hinge.
Data Source
AI summary
Provided herein may be a cosmetic container including a main body configured to store cosmetics therein; a cover configured to open and close a first side of the main body; and a hinge part configured to hingedly connect the cover to the main body. The hinge part includes a shaft insert part protruding from an upper end of the main body, with a hinge shaft being inserted into the shaft insert part; and a shaft coupling part depressed in the cover to be at a position corresponding to the shaft insert part, and securing both ends of the hinge shaft.