Tobacco Container Liner Isolates Metal Edges
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Solution Overview
Problem
Conventional smokeless tobacco containers face issues with sharp metal edges that can cause lacerations, poor aesthetics due to non-metal materials, and difficulties in achieving a secure and repeatable connection between the lid and can, affecting breathability and freshness.
Innovation Solution
A tobacco container design featuring a metal lid and body with a self-supporting plastic liner that connects the lid and body independently, using a bead and hem structure to eliminate sharp edges and provide a secure, breathable seal without direct contact between the lid and body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal is used for the lid and can body, then aesthetics and strength are improved, but sharp edges may cause lacerations and manufacturing complexity increases
Solution Approach 1:
A plastic liner is introduced as an intermediary component between the metal lid and can body. The liner receives the sharp edges of both metal components, isolating them from user contact while maintaining the structural benefits of metal construction. This mediator approach allows the sharp edges to exist in the metal components without transferring the harmful cutting effect to the user.
Solution Approach 2:
Different materials are used for different functional zones: metal for structural components (lid and can body) requiring strength, and plastic for the liner where user contact occurs requiring safety. The metal components have locally modified properties at their edges (received by the liner) to eliminate sharpness while maintaining overall structural integrity.
2Object-affected harmful factors
If plastic or cardboard is used for the can body, then safety is improved, but aesthetics deteriorate and the product looks cheap or flimsy
Solution Approach 1:
The container system uses a composite structure combining metal (for strength and aesthetics in visible areas) and plastic (for safety and sealing). The metal lid and can body provide structural strength and premium appearance, while the plastic liner provides safety and sealing function. This composite approach allows each material to contribute its superior properties to the overall system.
3Device complexity
If a direct connection between lid and can is used, then device complexity is reduced, but breathability and freshness control are compromised
Solution Approach 1:
The plastic liner serves as an intermediary connection element between the lid and can body. Instead of direct metal-to-metal contact, the liner receives both components and provides the sealing interface. This intermediary approach enables precise control of breathability through the liner material properties while maintaining a relatively simple overall connection structure.
4Strength
If metal components are used, then strength is improved, but manufacturing and connection difficulty increases
Solution Approach 1:
The invention changes the material parameter of the connecting component from metal to plastic. The plastic liner is formed with specific geometric parameters (receiving structures for lid and can edges) that enable easy connection. This parameter change in material type allows for simpler manufacturing processes compared to metal-to-metal connections while maintaining structural strength through the metal components.
Data Source
AI summary
A tobacco container is provided. The tobacco container includes a lid, a container body and an insert in the form of a liner. The liner releasably connects the lid to the container body. Each of the lid and container body receive and connect to the liner. The liner can include a compression lip that is deformed when the liner is connected to the container body. The liner connects the container body and lid to one another without the two components contacting each other.