Closure Cap Vibration Damper Gas-Tight Seal
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Solution Overview
Problem
Existing closure caps for medicinal tablets fail to provide long-term gas-tightness and moisture protection due to material deterioration, and they often lack a guarantee mechanism to ensure originality and effective re-closure.
Innovation Solution
A closure cap design featuring a vibration-damper element integrated with a straining insert, where the connecting part and vibration-damper element are joined through injection-molding and final shaping by blowing, ensuring a gas-tight seal that remains effective even after multiple openings and closures, and incorporating a guarantee ring for authenticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a closure cap with vibration damper element is used, then vibration protection is provided, but gas-tightness deteriorates over time due to material deterioration
Solution Approach 1:
The closure cap is divided into functionally independent components: a vibration damper element for vibration protection and a straining insert with sealing surface for gas-tight closure. This segmentation allows each component to perform its specific function without compromising the other, resolving the contradiction between vibration protection and long-term gas-tightness.
Solution Approach 2:
The straining insert with its protrusion is designed in advance to compensate for material deterioration. The rigid protrusion maintains sealing pressure on the receptacle mouth even as the closure cap material degrades over time, ensuring long-term gas-tightness while the vibration damper provides vibration protection.
2Ease of operation
If the closure cap is made re-closable, then usability is improved, but sealing reliability deteriorates due to repeated openings and closures
Solution Approach 1:
The straining insert with its protrusion is pre-designed to maintain sealing pressure throughout multiple opening and closing cycles. The rigid protrusion compensates for material fatigue and deterioration that occur during repeated use, ensuring sealing reliability is maintained despite improved re-closure functionality.
3Ease of manufacture
If a single-piece construction is used for simplicity, then manufacturing complexity is reduced, but protection against material deterioration is compromised
Solution Approach 1:
The closure cap incorporates a straining insert as a separate component that can be inserted into the closure cap body. This segmentation allows the use of different materials optimized for specific functions: the vibration damper for vibration protection and the straining insert with protrusion for reliable sealing that resists deterioration, while still maintaining relatively simple manufacturing processes.
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 closure cap maintains a gas-tight seal for an extended period, protects against moisture, and ensures the integrity of stored materials by preventing material deterioration and ensuring re-closure functionality, while the guarantee ring verifies the originality of the contents.
Implementation Method 1
the connecting part and the vibration-damper element are made of a single piece of thermoplastic material
Implementation Method 2
the connecting part and the vibration-damper part are joined - upon appropriate preparations - by means of injection-molding
Implementation Method 3
the final shaping of the vibration-damper element is achieved by means of blowing
Implementation Method 4
closure cap integrated with a vibration-damper element... enables vibration damped storage
Implementation Method 5
the connecting part and the vibration-damper element are made of a single piece of thermoplastic material
Data Source
Figure 1
Figure 2
Figure 3A~3C
AI summary
The invention relates to a closure cap (10) especially for a receptacle (12) for storing medicaments, which closure cap (10) comprises a connecting part (24) having an external cylindrical mantle part (37) and an internal cylindrical mantle part (38), as well as a vibration-damper element (14) connected to the internal cylindrical mantle part (38), and the internal cylindrical mantle part (38) has a sealing surface (20) on its outer side, and the closure cap (10) comprises an opening (27) encircled by the internal cylindrical mantle part (38), as well as a straining insert (11, 11', 11") fitting into the opening (27) and supporting the sealing surface (20). The invention also relates to a method for manufacturing a closure cap (10), wherein a connecting part (24) and a vibration-damper element (14) is produced, the connecting part (24) is produced of an injection-molding material by means of injection- molding, by means of injection-molding, a pre-form part (35) is produced of a blowing- material having a higher viscosity than that of the injection-molding material, the connecting part (24) and the pre-form part (35) are melted together, and the pre-form part (35) integrated onto the connecting part (24) is shaped by means of blowing to form the vibration-damper element (14).