Cosmetic Container Cap Assembly Sealing Design
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Solution Overview
Problem
Existing cosmetic containers face challenges in maximizing product volume due to crimping processes that deform the tubular shell, reducing capacity, and lack of aesthetic appeal and versatility in design.
Innovation Solution
The design incorporates a tubular sleeve with a cap assembly featuring a cap ring and cap that engage through threads or snap-fit mechanisms, optionally with an O-ring for sealing, allowing for a secure and airtight closure without deforming the container, and enabling the container to be stood on its closed end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tubular shell is crimped shut to seal the container, then the sealing reliability is improved, but the volume of the tubular shell is reduced and aesthetic appeal deteriorates
Solution Approach 1:
The sealing function is segmented from the tubular shell itself and transferred to a separate cap assembly. The cap assembly includes a cap ring that fits over the tubular sleeve and a cap that provides the actual seal, allowing the tubular shell to maintain its original volume and shape while achieving reliable sealing through the separate cap mechanism.
Solution Approach 2:
The cap ring acts as an intermediary component between the tubular shell and the cap. It provides a mounting structure for the cap and creates a sealing interface without requiring deformation of the tubular shell itself, thus preserving volume while achieving sealing reliability.
2Reliability
If the tubular shell is crimped shut to seal the container, then the sealing reliability is improved, but the aesthetic appeal and design versatility worsen
Solution Approach 1:
The sealing function is segmented from the tubular shell itself and transferred to a separate cap assembly. The cap assembly includes a cap ring that fits over the tubular sleeve and a cap that provides the actual seal, allowing the tubular shell to maintain its original volume and shape while achieving reliable sealing through the separate cap mechanism.
Solution Approach 2:
The cap assembly provides design versatility through its modular structure. The cap can be designed in various styles, materials, and configurations while maintaining the same functional sealing mechanism, allowing aesthetic appeal to be optimized independently from the sealing function.
3Reliability
If the tubular shell is crimped shut to seal the container, then the sealing reliability is improved, but the ability to stand the container on its closed end deteriorates
Solution Approach 1:
The sealing function is segmented from the tubular shell itself and transferred to a separate cap assembly. The cap assembly includes a cap ring that fits over the tubular sleeve and a cap that provides the actual seal, allowing the tubular shell to maintain its original volume and shape while achieving reliable sealing through the separate cap mechanism.
Solution Approach 2:
The cap assembly changes the structural parameters at the closed end of the container. By providing a flat, stable base through the cap structure rather than a crimped edge, the container gains the ability to stand upright on its closed end while maintaining sealing reliability through the cap's sealing mechanism.
4Volume of moving object
If a cap assembly with threads is used to seal the container, then the volume of the tubular shell is maintained, but the device complexity increases
Solution Approach 1:
The sealing function is segmented from the tubular shell itself and transferred to a separate cap assembly. The cap assembly includes a cap ring that fits over the tubular sleeve and a cap that provides the actual seal, allowing the tubular shell to maintain its original volume and shape while achieving reliable sealing through the separate cap mechanism.
Solution Approach 2:
The cap ring and cap are combined into a single integrated cap assembly that performs both the mounting and sealing functions. This reduces the number of separate components compared to having separate mounting rings and caps, thereby reducing device complexity while maintaining volume.
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
This design enhances product volume retention, provides aesthetic versatility, and allows for easy access and refilling while maintaining a secure seal, addressing the limitations of traditional crimping methods.
Implementation Method 1
an O-ring may be adapted for placement around the cap ring to provide a seal between the cap ring and the cap
Implementation Method 2
The outer wall may include inner threads which may be configured to engage with the outer threads of the outer side of the cap ring
Data Source
AI summary
A cosmetic container may comprise a tubular sleeve that defines a cavity. The tubular sleeve may include a first end with a first opening and a second end with a second opening. The first opening may be defined by at least one upper sidewall which may include outer threads. The cosmetic container may include a cap assembly which may be configured to engage with the second opening of the second end, thereby sealing the second opening of the second end.