Transferable Substance Device with Movable Protective Cap
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Solution Overview
Problem
Existing devices for applying transferable substances, such as lipsticks or skincare products, face challenges in handling and removal due to the fixed position of the protective sheath and cap, making it difficult for users to easily shift the substance into a projecting position or remove it from the device.
Innovation Solution
The protective sheath and cap are accommodated in a casing part with passage openings at opposite ends, allowing them to be shifted together, with the cap being captive and connected to the casing part, enabling the substance carrier to be displaced relative to the casing part, facilitating the removal of the substance by aligning the cap and sheath edges for easy extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the protective sheath and cap are fixed in position within the device, then the structure is simple and stable, but it becomes difficult for users to shift the substance into a projecting position or remove the device part
Solution Approach 1:
The protective cap is designed to be movable relative to the casing part, allowing it to be shifted along the longitudinal axis. This dynamic capability enables the user to easily move the substance carrier into a projecting position or remove the device part by simply displacing the cap, without requiring complex mechanisms
Solution Approach 2:
The device is divided into distinct separable components: the casing part, the protective cap, and the device part with substance. This segmentation allows the cap to be independently moved relative to the casing, facilitating easy access and removal operations while keeping each component structurally simple
2Ease of operation
If the protective sheath and cap are accommodated in a casing part with passage openings, then the ease of operation is improved, but the device complexity increases due to additional components and assembly requirements
Solution Approach 1:
The protective cap and protective sheath are combined into a single movable assembly that can be shifted together relative to the casing part. This merging reduces the number of independent components that need to be managed, simplifying the overall structure while maintaining ease of operation through the unified movable unit
Data Source
AI summary
A device for applying a transferable substance in stick form, has a substance carrier and a protective sheath for the substance carrier, wherein the substance carrier can be shifted relative to the protective sheath in order for a free end region of the substance to be shifted into a free, projecting position, and also having a protective cap for covering the free end region of the substance in a not-in-use state. The protective sheath and the protective cap are accommodated in a casing part and the protective cap and the protective sheath is displaceable in a displacement direction in the casing part. The casing part has through-passage openings at its opposite ends, as seen in the displacement direction, and the protective cap is connected to the casing part such that it is movable in the displacement direction, but is captive.