Rotating Sleeve Cosmetic Container with One-Handed Opening
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Solution Overview
Problem
Conventional cosmetic containers require multiple rotations of a threaded cap for opening and closing, making the operation inconvenient for users.
Innovation Solution
A container design featuring a sleeving cylinder that rotates relative to a base within a pre-set angle range, allowing for easy opening and closing of the top cover, along with a content unit that can be pre-sealed and replaced, and a connecting recess for one-handed operation, all made from recyclable plastic materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a threaded cap is used for closing the container, then the sealing reliability is improved, but the ease of operation deteriorates due to multiple rotations required
Solution Approach 1:
The container is divided into a main body assembly (with base and sleeving cylinder) and a separate top cover assembly. The sleeving cylinder can rotate independently relative to the base within a pre-set angle range, while the top cover is driven to open/close by this rotation through a connected operating unit, eliminating the need for multiple rotations
Solution Approach 2:
The operating unit includes a movable component that translates the rotational motion of the sleeving cylinder into linear motion to drive the top cover open/close. This dynamic mechanism converts a small rotation into a functional opening/closing action, improving ease of operation while maintaining sealing reliability
2Reliability
If different materials are used for container components, then the functional performance is improved, but the recycling complexity increases
Solution Approach 1:
All major components of the container (base, sleeving cylinder, top cover, and operating unit) are made from plastic materials. This homogeneity in material selection simplifies the recycling process by allowing all components to be classified together as plastic waste, eliminating the need for separate classification of different materials while still achieving functional performance requirements
3Productivity
If the content is pre-loaded into the container, then the productivity is improved, but the adaptability deteriorates when content change is needed
Solution Approach 1:
The container is designed with a separable structure where the top cover and operating unit can be removed to access the content. This allows the content to be pre-loaded for efficient storage and transport, while also enabling easy replacement when different contents are needed, thus balancing productivity and adaptability
Data Source
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AI summary
A container has a base (10), a sleeving cylinder (20), a top cover (30), and a top cover open-close operating unit (40). The sleeving cylinder (20) rotatably sleeves the base (10) and has an accommodating space (200) capable of accommodating a content (52). The top cover (30) is pivotally mounted on the sleeving cylinder (20) and is capable of opening and closing the accommodating space (200). The top cover open-close operating unit (40) is moveably mounted in the main body assembly (1) and is connected to the top cover (30). When the sleeving cylinder (20) is rotated relative to the base (10), the sleeving cylinder (20) drives the top cover (30) to open or to close the accommodating space (200) via the top cover open-close operating unit (40). The container facilitates ease in operation in opening and closing.