Cosmetic Pot Tensioning Element for Solid Acoustic Contact
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Solution Overview
Problem
Double shell plastic pots for cosmetic products have an interstitial space that can cause a hollow sound when placed on a surface, leading to an impression of insufficient quality, and existing solutions fail to address fabrication tolerances effectively without increasing weight or environmental impact.
Innovation Solution
A pot design featuring a mechanical tensioning element that compresses between the shell and insert in the assembled position, providing a solid contact line and sound, while maintaining a lightweight and environmentally friendly structure, with the tensioning element being flexible and made in a single piece with the insert or shell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a double shell plastic pot structure is used, then the pot becomes lighter and has higher capacity, but the interstitial space causes a hollow sound that reduces perceived quality
Solution Approach 1:
A tensioning element is introduced as an intermediary component between the insert and the shell bottom. This element transmits mechanical tension to reduce the interstitial space, eliminating the hollow sound while maintaining the lightweight double shell structure. The tensioning element acts as a mediator that connects the functional requirements of both the outer shell and inner insert.
Solution Approach 2:
The physical state of the interstitial space is changed from a large gap to a compressed state through the application of mechanical tension. By changing the parameter of space volume and applying continuous tension, the hollow sound is eliminated without requiring additional heavy materials or complex assembly procedures.
2Ease of manufacture
If the interstitial space is reduced to eliminate hollow sound, then perceived quality improves, but fabrication tolerances may cause the insert to touch the shell bottom
Solution Approach 1:
The tensioning element provides dynamic adjustment capability, allowing the system to adapt to fabrication tolerances. Rather than fixing the insert rigidly, the tensioning mechanism continuously adjusts the position and tension, maintaining optimal spacing while compensating for dimensional variations in the components.
Solution Approach 2:
The mechanical tension applied by the tensioning element dynamically changes the effective spacing between the insert and shell bottom. This parameter adjustment compensates for fabrication tolerances, ensuring consistent performance across all assembled pots without requiring extremely tight manufacturing tolerances.
3Ease of manufacture
If a tensioning element is added to eliminate hollow sound, then perceived quality improves, but the device complexity increases
Solution Approach 1:
The tensioning element is integrated with either the shell or the insert through fixed connections, merging multiple functions into a single component. This integration reduces the number of separate parts and simplifies the overall structure while maintaining the tensioning function necessary to eliminate hollow sound.
Solution Approach 2:
The tensioning element utilizes flexible or thin-walled structures that can deform and apply tension without requiring complex mechanical assemblies. This approach achieves the tensioning function with simple, lightweight components that do not significantly increase structural complexity.
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 pot achieves a solid sound and improved user perception of quality without significant weight or environmental impact increases, as the tensioning element compensates for fabrication tolerances and maintains a moderate mass ratio, enhancing assembly efficiency and user experience.
Implementation Method 1
a mechanical tensioning element of the shell that can be in a compressed position between the shell and the insert when the shell and the insert are in the assembled position
Implementation Method 2
the tensioning element is capable of deforming during assembly of the pot from an unloaded rest position to the compressed position
Data Source
AI summary
This pot comprises a shell (9) comprising a bottom (15) so that the pot (1) can be placed on a surface (3), and a side part (17), and an insert (11) designed to contain the cosmetic product (2). The insert (11) is designed to be inserted into the shell (9) and fixed on it in an assembled position of the pot (1), in which the insert (11) and the shell (19) define an interstitial space (43) extending in front of the bottom (15) and the side part (17). The pot (1) also comprises a mechanical tensioning element (13) of the shell (9) that can be in a compressed position between the shell (9) and the insert (11) when the shell (9) and the insert (11) are in the assembled position.