Food Packaging Container Rim Structure for Secure Stacking
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Solution Overview
Problem
Existing food packaging containers lack a stable stacking mechanism and fail to indicate if the cover has been opened, compromising food quality and safety.
Innovation Solution
A food packaging container design featuring a main body with a first rim portion and a cover with a recessed groove system, including a catching stepped portion and oblique protrusions, allowing secure coupling and stable stacking, while an opening protrusion with a tear line ensures easy separation and indicates opening status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple coupling structure is used between the main body and cover, then the device complexity is reduced, but the reliability of securing the cover to the main body deteriorates
Solution Approach 1:
The first rim portion of the main body is inserted into the recessed groove of the cover, creating a nested structure where one component fits within another. This nesting arrangement provides secure coupling while maintaining structural simplicity, resolving the contradiction between device complexity and coupling reliability.
Solution Approach 2:
The recessed groove extends in the thickness direction of the cover, adding a vertical dimension to the coupling mechanism. This dimensional change allows the rim portion to be securely retained within the groove, improving coupling reliability without significantly increasing horizontal structural complexity.
2Device complexity
If no separate stacking device is provided, then the device complexity is reduced, but the stability of stacking the main body on the cover deteriorates
Solution Approach 1:
The recessed groove serves multiple functions: it couples the cover to the main body during use and also enables stable stacking of containers when not in use. This multi-functionality eliminates the need for a separate stacking device, resolving the contradiction between device complexity and stacking stability.
Solution Approach 2:
The nested structure of the rim portion within the recessed groove creates a stable configuration that allows containers to be stacked securely. The interlocking geometry provides mechanical stability for stacking without requiring additional dedicated stacking components.
3Ease of operation
If the cover is easily separable from the main body, then the ease of operation is improved, but the reliability of preventing unauthorized opening deteriorates
Solution Approach 1:
The recessed groove is pre-formed in the cover with specific geometric features that allow easy separation through cutting while simultaneously providing verification of opening status. The preliminary structure enables both ease of operation and reliability of opening verification without additional components.
4Stability of the object's composition
If a complex stacking mechanism is provided, then the stability of stacking is improved, but the device complexity increases
Solution Approach 1:
The recessed groove is designed to serve dual purposes: securing the cover to the main body during use and enabling stable stacking when containers are stored. This universal design provides stacking stability without increasing device complexity, as the same structural feature performs both functions.
Data Source
AI summary
An embodiment relates to a food packaging container including a main body having a first rim portion provided at an upper edge thereof, and a cover having a second rim portion provided at an edge thereof, and a recessed groove formed in a bottom surface of the second rim portion so that the first rim portion is inserted into the recessed groove.