Replaceable Cosmetic Cartridge With Rotational Sheath
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Solution Overview
Problem
Cosmetic packages are typically single-use, leading to excessive waste and environmental pollution, as they are difficult to degrade and require entire package disposal upon depletion, necessitating the development of a reusable system with replaceable cartridges made from environmentally friendly materials.
Innovation Solution
A cosmetic package design featuring a replaceable cartridge system with a bottle body, screw member, cover body, and sheath, allowing for the selective insertion and removal of cartridges, where the sheath and plate can be made from materials like paper, bamboo, or wood, enabling refilling and reuse of the package without discarding the entire unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If single-use cosmetic packages are used, then the package is simple and easy to manufacture, but excessive waste is generated and the entire package must be disposed of after depletion
Solution Approach 1:
The cosmetic package is divided into two main segments: a reusable dispensing mechanism (bottle body with screw member) and a replaceable cartridge (sheath with cosmetic product). This segmentation allows the cartridge to be replaced without disposing of the entire package, reducing waste while maintaining manufacturing simplicity for each component
Solution Approach 2:
The design enables selective disposal of only the depleted cartridge while recovering and reusing the bottle body and dispensing mechanism. This partial discarding approach significantly reduces waste compared to single-use packages where the entire unit must be discarded
2Object-affected harmful factors
If environmentally friendly materials like paper, bamboo, or wood are used for the cartridge, then waste is reduced and environmental impact is minimized, but processing threads on these materials becomes difficult
Solution Approach 1:
Instead of cutting threads into the sheath (which would be difficult with natural materials), the design inverts the approach by forming protrusions on the sheath that engage with corresponding grooves in the screw member. This reversal eliminates the need for thread processing in natural materials while maintaining the rotational dispensing function
Solution Approach 2:
The engagement features (protrusions and grooves) are strategically positioned only where needed for functional connection, allowing the majority of the sheath to be made from environmentally friendly materials without requiring complex thread processing throughout the entire component
3Object-affected harmful factors
If the cartridge is made with protrusions instead of threads, then environmentally friendly materials can be used, but the coupling mechanism becomes more complex
Solution Approach 1:
The coupling mechanism merges the protrusions on the sheath with corresponding grooves in the screw member to form an integrated rotational connection. This combined approach achieves both the environmental benefit of using natural materials and maintains relatively simple manufacturing by forming features rather than cutting threads
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
This design reduces waste by allowing the cosmetic package to be reused with new or refilled cartridges, promoting sustainability and minimizing environmental impact through the use of biodegradable materials, while maintaining product dispensing functionality.
Implementation Method 1
a screw member (2) configured to cooperate with the sheath (5) such that rotation of the screw member (2) causes movement of the sheath (5) in a longitudinal direction of the cosmetic package (100)
Data Source
AI summary
A cosmetic package for dispensing a cosmetic product, the cosmetic package includes a replaceable cartridge for housing the cosmetic product. The cosmetic package further includes a bottle body and a screw member that is secured inside the bottle body such that the screw member does not have any axial or rotational movement relative to the bottle body. The replaceable cartridge comprises a sheath and a plate housed within the sheath. The sheath is rotatably engaged to the screw member, and moves up and down along the length of the screw member to hide or expose the cosmetic product housed in the sheath. The plate is stationary relative to the screw member when the sheath moves up and down. The sheath and the plate that can be replaced or refilled, while the bottle body, screw member, cover body of the cosmetic package can be retained for reuse.