Polypropylene Pump Resilient Member for Contamination-Free Dispensing
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Solution Overview
Problem
Conventional cosmetic dispensing devices with metal springs risk chemical reactions with cosmetics, increase assembly complexity, and suffer from storage and transportation losses, necessitating a solution for smooth pumping operations that prevents contamination and maintains consistent discharge.
Innovation Solution
An elastic member with a ring structure comprising lower and upper support portions and resilient portions, made of polypropylene, forming a continuous binding structure with acute angles and specific dimensions, and an auxiliary elastic member to ensure stable and consistent pumping without metal contact, enhancing structural stability and preventing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a metal spring is used in the conventional discharge device, then the pumping operation can be driven, but the contents may react chemically with the spring and be deteriorated
Solution Approach 1:
The patent extracts the harmful metal spring from the system and replaces it with an elastic member made of non-metallic material (polypropylene or similar plastic). This eliminates the chemical reaction between the spring and cosmetic contents while maintaining the pumping function through the elastic restoring force of the plastic material.
Solution Approach 2:
The patent changes the material parameter of the elastic component from metal to plastic (polypropylene). This material substitution maintains the elastic properties needed for pumping operation while removing the harmful chemical reactivity that metal springs exhibit with cosmetic contents.
2Ease of operation
If a separate spring is interposed between the pump body and head, then the pumping function is achieved, but the number of assembly workers required increases
Solution Approach 1:
The patent merges the separate spring component with the pump body structure. The elastic member is integrated into the pump body as a unified component rather than being a separate part, which reduces the number of assembly steps and workers required while maintaining the pumping function.
Solution Approach 2:
The elastic member serves multiple functions: it provides the pumping action, acts as a structural component of the pump body, and eliminates the need for separate spring assembly. This multi-functionality reduces device complexity and assembly requirements.
3Ease of operation
If a separate spring is used as a separate part, then the pumping function is achieved, but there are many disadvantages in terms of loss during storage and transportation
Solution Approach 1:
By integrating the elastic member into the pump body as a unified structure, the patent eliminates the separate spring part that is prone to loss during storage and transportation. The merged design ensures all components are permanently attached and cannot be lost separately.
4Ease of manufacture
If the elastic member has a simple structure, then the manufacturing is easier, but the pumping amount may be insufficient
Solution Approach 1:
The elastic member is divided into multiple resilient portions (first resilient portion, second resilient portion, third resilient portion) that are continuously bound together. This segmentation allows each portion to contribute to the overall elastic restoring force, increasing the pumping amount while maintaining a manufacturable structure through continuous binding.
Solution Approach 2:
The elastic member is made of polypropylene or similar plastic material that provides both ease of manufacture through molding and sufficient elastic restoring force for adequate pumping amount. The composite structure of multiple bound resilient portions enhances the pumping capability while remaining manufacturable.
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 elastic member ensures smooth and consistent pumping operations, prevents contamination by avoiding metal contact, and increases the pumping amount while maintaining structural stability, addressing the limitations of prior art devices.
Implementation Method 1
a lower support portion in a ring structure having predetermined sizes of outer diameter and thickness from a plane view, which is made of a material having a predetermined resilient restoring force
Data Source
AI summary
A resilient member according to one embodiment of the present invention principally comprises: a ring-shaped lower support portion having a predetermined outside diameter and thickness from a plan view perspective; a first resilient portion integrally connected to the lower support portion or one side of a second resilient portion; a second resilient portion integrally connected to the other side of the first resilient portion, the connection location to the other side of the first resilient portion being opposite from the plane view perspective, and having the bottom surface forming a predetermined acute angle with the top surface of the first resilient portion; a resilient structure forming part in which the first resilient portions and the second resilient portions are continuously and alternately connected to form a single resilient connected structure; and an upper support portion integrally connected to one side or the other side of an uppermost component from among the first resilient portions and the second resilient portions forming the resilient structure forming part, and having the bottom surface forming a predetermined acute angle with the top surface of the uppermost component.