Cosmetic Container Pump Coupling and Recyclability
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Solution Overview
Problem
Conventional cosmetic containers with spray pumps have complex structures that are difficult to fabricate and recycle, particularly due to the use of different materials for valve springs and piston springs, which hinders environmental friendliness.
Innovation Solution
A cosmetic container design featuring a simple structure with a body, body shoulder, and pump, where the body shoulder includes an outer and inner periphery member, a placement step, and a pump support, allowing for easy coupling and disconnection of the pump, and utilizing an elastic member instead of metallic springs for the pump mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cosmetic containers use metallic valve springs and piston springs, then the pump mechanism can achieve reliable mechanical function, but the container becomes difficult to recycle due to mixed materials
Solution Approach 1:
The patent applies homogeneity by replacing metallic springs with elastic members made of the same plastic material as the container body. This eliminates material mixing and enables complete recyclability while maintaining the mechanical function of the pump mechanism through the elastic properties of the plastic material.
Solution Approach 2:
The patent utilizes composite material properties by designing the elastic member from plastic material that combines structural support and elastic functionality. This allows a single material to serve multiple functions previously requiring different materials (metallic springs and plastic body), resolving the recyclability issue.
2Ease of operation
If conventional cosmetic containers include multiple separate components (nozzle, nozzle cap, cap cover, cap, valve, valve spring, housing cover, piston spring, piston, guide, disk, housing), then the pump mechanism can be assembled with functional separation, but the structure becomes complicated and difficult to fabricate
Solution Approach 1:
The patent merges multiple separate components into an integrated pump assembly where the housing, valve, piston, and elastic member are combined into a single unit that attaches to the container. This reduces the number of separate parts from over 10 components to a streamlined assembly, simplifying fabrication while preserving essential functional separation for dispensing operation.
Solution Approach 2:
The patent applies multi-functionality by designing the pump assembly to perform multiple functions (sealing, actuating, dispensing, and returning) through integrated components. The elastic member simultaneously provides sealing and actuation functions, while the housing integrates valve and piston mechanisms, reducing overall structural complexity.
3Reliability
If the pump coupling structure includes complex shapes and multiple coupling points, then the pump can be securely attached to the container, but fabrication time and costs increase
Solution Approach 1:
The patent segments the coupling structure into distinct functional zones: an insertion portion for attaching the pump to the container opening, and a sealing portion with a gasket for creating a seal. This segmentation allows each portion to be optimized independently for its specific function, achieving secure attachment without excessive complexity.
Solution Approach 2:
The patent extracts the sealing function from the main pump body by using a separate gasket component. This allows the pump coupling structure to focus on mechanical attachment while the gasket handles sealing, simplifying the overall fabrication process while maintaining coupling security.
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 achieves a cosmetic container that is easy to recycle and fabricate, with a simpler structure compared to conventional containers, while maintaining effective dispensing functionality.
Implementation Method 1
utilizing an elastic member instead of metallic springs for the pump mechanism
Data Source
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AI summary
A cosmetic container (200) is disclosed. One aspect of the invention provides a cosmetic container (200) that includes: a body (250) in which an interior space is formed for holding a content; a body shoulder (220) coupled to an upper part of the body; and a pump (100) coupled to an upper part of the body shoulder (220), where the body shoulder (220) includes an outer periphery member (222) inserted into the body (250), an inner periphery member (228) positioned on the inside of the outer periphery member (222), a placement step (230) formed on an upper part of the inner periphery member (228), and a pump support (234) protruding downward from the placement step (230) and having the pump (100) inserted through an inside thereof, and where the pump (100) includes a housing (150) inserted through the pump support (234), and a housing flange (152) configured to rest on the placement step (230) is formed on an outer perimeter of the housing (150).