Vessel Cap Structure with Segmented Outer and Inner Caps
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Solution Overview
Problem
Conventional screw-coupling structures for vessel caps require inconvenient repeated rotation to open and close, leading to wastage of cosmetics when using integrated tools like pipettes or mascara sticks, as users must separate the cap from the vessel, causing liquid to be wasted.
Innovation Solution
A cap structure featuring an inner and outer cap with a deformation member that allows the cap to be opened or closed by rotating the outer cap at a predetermined angle, incorporating protrusions and grooves to securely lock or release the component, preventing unnecessary movement and allowing the tool to be used closer to the vessel's floor, thereby minimizing liquid loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw-coupling structure is used to couple the cap with the vessel, then the cap can be securely attached to the vessel, but the user must inconveniently rotate the cap several times to open/close it
Solution Approach 1:
The cap structure is divided into an inner cap and an outer cap that can rotate independently. The inner cap remains fixed to the vessel while the outer cap rotates to open/close, eliminating the need to rotate the entire cap assembly and reducing operational complexity.
Solution Approach 2:
The outer cap is designed to rotate dynamically relative to the inner cap, transitioning between locked and unlocked positions. This dynamic mechanism allows the cap to be securely attached when closed but easily opened by simple rotation of the outer cap only.
2Ease of operation
If the cap is separated from the vessel to use integrated tools like pipettes or mascara sticks, then the tools can be used, but cosmetic liquid is wasted because the tool tip cannot reach the liquid at the bottom of the vessel
Solution Approach 1:
The cap is segmented into inner and outer caps with different functions. The inner cap remains attached to the vessel and maintains the tool's position, while the outer cap provides access. This allows the tool tip to reach the liquid at the vessel bottom without completely separating the cap.
Solution Approach 2:
The inner cap acts as an intermediary that remains between the outer cap and the vessel. It provides a stable mounting surface for the tool while allowing the outer cap to be opened, enabling tool access without losing liquid at the vessel bottom.
3Ease of operation
If the cap structure includes multiple components (inner cap, outer cap, circular part, deformation member), then the cap can be opened/closed by rotating the outer cap at a predetermined angle, but the device complexity increases
Solution Approach 1:
The circular part is nested within the outer cap, and the deformation member is nested within the circular part. This nested arrangement allows multiple functional components to be integrated in a compact space, reducing overall device complexity while maintaining controlled opening/closing functionality.
Solution Approach 2:
The mounting part integrates the circular part and deformation member into a unified structure within the outer cap. This merging of components reduces the number of separate parts while achieving the predetermined angle rotation function through the combined action of the circular part's protrusions and the deformation member.
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
Enables easy and efficient opening and closing of the cap, ensuring that most of the cosmetic liquid remains usable by allowing the tool to be used closer to the vessel's floor, reducing wastage and enhancing user convenience.
Implementation Method 1
a deformation member to deform a shape of the circular part from a circular shape to an oval shape, or from the oval shape to the circular shape
Data Source
AI summary
Provided is a cap structure for a vessel, which is coupled with the vessel to open/close the vessel. The cap includes an inner cap coupled with an upper end portion of the vessel, an outer cap fitted around an outer diameter of the inner cap, a circular part inserted into the mounting part, in which the circular part includes protrusions, which are smoothly curved, and first detachable protrusions formed at a position perpendicular to the protrusions, a deformation member to deform a shape of the circular part, and a component inserted into the inner cap and the circular part and having a first detachable groove circumferentially formed at a lower portion of an outer-diameter surface of a coupling part formed on the component. The cap opens/closes the vessel by fixedly attaching the component to the cap disassembled from the vessel or separating the component from the cap.