Press-In Reusable Container Lid for Hermetic Sealing and Tool Opening
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Solution Overview
Problem
Existing reusable containers face challenges in achieving a secure seal and efficient material usage while maintaining durability and ease of use.
Innovation Solution
A reusable container with a conical lid that presses into a conical indentation on the container, featuring an engagement element with an opening that allows for secure sealing and removal only with a tool, minimizing material usage and ensuring durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a press-fit lid is used to seal the container, then the sealing capability is improved, but the lid cannot be removed without damaging the container or lid
Solution Approach 1:
The lid is segmented with an opening in its wall, creating a gap between the lid and container rim. This segmentation allows a tool to be inserted and applied to the container rim to lever the lid off, solving the contradiction by maintaining the press-fit seal while enabling tool-assisted removal.
Solution Approach 2:
A tool acts as an intermediary between the user and the lid-container system. The tool is inserted through the opening in the lid wall and applied to the container rim, serving as a mediator that enables lid removal without directly damaging either the lid or container while maintaining sealing integrity.
2Strength
If the lid wall is completely closed (no opening), then the structural integrity and sealing are improved, but the lid cannot be opened without a tool
Solution Approach 1:
The lid wall has a localized opening that provides just enough access for tool insertion while maintaining structural integrity elsewhere. This local modification allows tool-assisted opening without compromising the overall strength and sealing capability of the lid structure.
3Reliability
If additional sealing elements (such as welded film) are used, then the sealing reliability is improved, but the manufacturing complexity and material usage increase
Solution Approach 1:
The additional sealing elements (welded film, separate sealing rings) are extracted from the system. The patent achieves reliable sealing using only the press-fit interaction between the lid and container rim, eliminating unnecessary components and simplifying the overall structure.
Solution Approach 2:
The lid and container rim perform their own sealing function through the press-fit mechanism without requiring additional sealing elements. The engagement element with opening allows the structure to be both self-sealing and self-openable with simple tool assistance.
4Stability of the object's composition
If the engagement element has no opening, then the structural stability is improved, but the lid cannot be opened with a tool
Solution Approach 1:
The engagement element has a localized opening that provides tool access while maintaining structural stability in the surrounding areas. The opening is positioned and sized to allow tool insertion without compromising the overall structural integrity of the engagement element.
Data Source
Figure 1~2
Figure 3~6
Figure 7~8
AI summary
The invention relates to a reusable packaging in the form of a container (1) which is in combination with a lid (2) that can be pressed into the container (1), wherein the container (1) has a conical press-in area at its upper edge and a container rim (8) above the press-in area, and wherein the lid (2) has a downwardly offset lid base (3) and a conical lid wall (4) rising from it, wherein the lid (2) with its conical lid wall (4) can be pressed into the press-in area of the container (1), wherein the lid (2) has at least one engagement element (5) which adjoins the upper edge of the conical lid wall (4) and projects upwards beyond it, wherein the engagement element (5) has at least one opening (6) and wherein, when the lid (2) is pressed in, there is a gap between the upper edge of the opening (6) and the upper container rim (8).