Airless Foundation Container With Inverted Pumping Mechanism
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Solution Overview
Problem
Conventional foundation containers with airless pumps face issues with airtightness and uneven discharge of gel foundation, leading to residual content problems and user dissatisfaction.
Innovation Solution
A foundation container design featuring a stretchable contents container with a rounded curved lower edge and annular bent portion, coupled with a middle cap and discharge plate, ensures even compression and distribution of contents during pumping, minimizing residual amounts and enabling smooth discharge through a locking mechanism for initial operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a piston is raised to discharge contents during pumping operation, then the contents can be discharged from the container, but the airtightness is deteriorated due to horizontal disparity, making it difficult to discharge all final residual contents
Solution Approach 1:
Instead of raising the piston from the bottom to discharge contents, the invention inverts the approach by pressing the discharge plate from the top downward. This reverses the pumping action direction, allowing the pump chamber to expand upward and draw contents through the contents container and discharge holes, thereby maintaining airtightness while achieving complete discharge
Solution Approach 2:
The discharge plate is preliminarily positioned to cover the discharge holes before pumping operation begins. During operation, the discharge plate is pressed downward to seal the holes initially, then the pumping action creates pressure differential that draws contents through the sealed path, ensuring airtight discharge without horizontal disparity
2Productivity
If a contents container of rubber material is pressed during pumping operation, then the contents are discharged, but the contents container is pressed firstly around contents discharge holes, which interferes with the discharge of the contents, so that the discharge is not smooth and residual contents remain
Solution Approach 1:
The contents container is designed with localized thin-walled portions positioned away from the discharge holes area. During pumping, the discharge plate presses downward and the expanding pump chamber compresses the contents container selectively at these thin-walled portions, causing contents to flow smoothly toward the discharge holes without interference, ensuring complete and smooth discharge
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 design effectively minimizes residual contents, improves user satisfaction by ensuring even distribution and efficient discharge of cosmetic contents, and allows for easy refill and economic feasibility through an integrated refill container system.
Implementation Method 1
the pump is coupled to an upper center portion of the container main body; and the discharge plate is coupled to an upper portion of the pump... such that the contents container is gradually pressed by pumping operation of the pump
Implementation Method 2
a discharge plate coupled to an upper portion of the pump, and formed with contents discharge holes, wherein the container main body is provided with a ventilation hole formed through a lower portion thereof
Data Source
AI summary
Disclosed is a foundation container having a discharge pump therein, in which a contents container of stretchable material for storing cosmetic contents is coupled inside a container main body, and is fixed by a middle cap, and the contents container is provided with a rounded curved portion (42) at a lower edge thereof, an annular bent portion (43) at a lower center portion thereof, and spaced protrusions (44) protruding radially on an upper bottom surface, such that the contents container is evenly pressed from the rounded curved portion during the pumping operation of the pump, and even when the contents container is compressed, the gap is secured to discharge minimal contents, whereby the contents are smoothly discharged, and by the branch structure of the distribution plate and the discharge plate, it is possible to minimize the residual contents and improve use efficiency while discharging the cosmetic contents evenly.