Drawing Material Cartridge Locking Structure for Cleaner Cosmetic Assembly
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Solution Overview
Problem
Existing cosmetic containers have a complex configuration with multiple protrusions and recesses, leading to a compromised aesthetic appearance.
Innovation Solution
A drawing material container cartridge design featuring a cartridge body with a tubular portion that locks to a container body via a first locking portion, and a cartridge cap that locks to the body using a second locking portion, simplifying the configuration and reducing protrusions and recesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cartridge includes an annular step portion for mounting a temporary cap and a fitting protrusion for mounting the container body, then the mounting functionality is achieved, but the configuration becomes complicated and the aesthetic appearance deteriorates
Solution Approach 1:
The patent merges the annular step portion and the fitting protrusion into a single integrated locking portion. This locking portion includes both the step structure for the temporary cap and the protrusion structure for the container body, eliminating the need for separate features and simplifying the overall configuration while maintaining both mounting functionalities.
Solution Approach 2:
The locking portion is designed as a multi-functional element that simultaneously serves as the mounting feature for both the temporary cap and the container body. This universal design allows a single structure to perform multiple functions that were previously required separate features, reducing complexity and improving aesthetic appearance.
2Reliability
If the cartridge includes an annular step portion and a fitting protrusion at different locations, then the mounting functionality is achieved, but the number of exposed protrusions and recesses increases, compromising aesthetic appearance
Solution Approach 1:
By combining the step portion and fitting protrusion into a single locking portion, the patent reduces the number of exposed features on the cartridge surface. This integration eliminates the need for separate protrusions and recesses, creating a smoother, more aesthetically pleasing appearance while preserving the necessary mounting functionality.
Data Source
AI summary
A drawing material container cartridge according to one embodiment includes a cartridge body including a tubular portion that accommodates a drawing material, and being configured to be detachably mounted in a container body by being inserted into the container body along an axial direction that is a direction in which an axis of the tubular portion extends; and a cartridge cap that is mounted on the cartridge body by inserting the tubular portion along the axial direction. The cartridge body includes a first locking portion that locks to the container body in the axial direction when the cartridge body is mounted in the container body. The cartridge cap includes a second locking portion that locks to the first locking portion in the axial direction when the cartridge cap is mounted on the cartridge body.