Hinged Box Lid Sealing Plate with Elastic Springs
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Solution Overview
Problem
Hinged boxes fail to provide an effective seal for moisture-sensitive contents due to non-uniform application of sealing compounds, allowing moisture and odors to enter.
Innovation Solution
A plate with elastic flaps or foam that spans the lid opening, providing full-surface contact and a spring mechanism to ensure uniform sealing, even with dimensional tolerances, combined with a sealing film or compound for enhanced protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hinged lid is used, then the box is easy to open and close, but the sealing effect deteriorates because sealing compounds cannot be uniformly applied
Solution Approach 1:
The sealing plate is divided into multiple segments or spring elements that can independently deform and adapt to the container opening, allowing each segment to make uniform contact with the sealing surface despite dimensional tolerances or misalignment
Solution Approach 2:
The sealing plate incorporates elastic springs or resilient elements that dynamically adjust to variations in the container opening dimensions and lid alignment, maintaining consistent sealing pressure through elastic deformation rather than rigid contact
2Ease of manufacture
If dimensional tolerances are large, then manufacturing cost decreases, but the sealing effect deteriorates because the lid does not align parallel to the box edge
Solution Approach 1:
The sealing plate uses elastic materials with specific stress-strain characteristics that allow it to deform within a range of dimensional variations, converting the problem of dimensional tolerance into a controlled elastic deformation parameter that maintains sealing effectiveness
Solution Approach 2:
The elastic springs in the sealing plate are pre-loaded or designed with sufficient elastic reserve to compensate for expected dimensional variations and misalignments before the sealing action occurs, ensuring that sealing pressure is maintained despite manufacturing tolerances
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 solution achieves a tight closure that prevents air, moisture, and odor ingress, ensuring optimal protection for contents regardless of lid alignment with the box edge.
Implementation Method 1
a spring element which presses the plate uniformly onto the lower part. The spring elements mounted on the upper side of the plate are supported on the underside of the lid and permanently press the plate uniformly onto the lower part. The spring elements used are elastic flaps or spring elements projecting from the upper side of the plate
Implementation Method 2
In a particularly advantageous embodiment of the invention, the underside of the plate is coated with a film, which additionally enhances the sealing effect on the upper edge of the lower part
Data Source
AI summary
A box (1) is provided including a lower part (3), acting as a container, and a lid (5). A plate (23) which can be moved with play is inserted into the lid (5). This plate (23) is resiliently supported on the inner side of the lid (5). When closing the box (1), the plate (23) moves into contact with the upper edge (13) of the lower part (3) and seals the inside of lower part (3) with respect to the surroundings.