Cosmetic Container Bottom Dial Prevents Hand Soiling
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Solution Overview
Problem
Conventional cosmetic containers soil hands during the rotational operation of opening and closing the conveyance path for powdered cosmetic materials due to the proximity of the applying body to the outer dial.
Innovation Solution
A cosmetic container design featuring a rotation portion with a turning plate that blocks the opening from the bottom, allowing the flow path to be opened and closed without direct hand contact, and an intermediate frame with through holes for improved application and deformation, preventing hand soiling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the applying body is disposed in close proximity to the outer dial for compact design, then the device size is reduced, but the hands are soiled during rotational operation
Solution Approach 1:
The operating portion is extracted from the upper dial assembly and relocated to the bottom of the container main body. This separation removes the contaminating element (operating portion) from proximity to the applying body, eliminating hand soiling while maintaining compact overall device dimensions through vertical space utilization.
Solution Approach 2:
Instead of rotating the outer dial from the top (conventional approach), the rotation operation is inverted to occur from the bottom of the container. The operating portion at the bottom rotates the turning plate through the shaft body, achieving the same flow path control function while preventing contact between hands and cosmetic material.
2Ease of operation
If the outer dial is rotated to open the conveyance path, then the cosmetic material can be supplied to the applying body, but the hands come in contact with the cosmetic material
Solution Approach 1:
The shaft body acts as an intermediary mechanism that transmits rotational motion from the operating portion at the bottom to the turning plate inside the container. This allows flow path control to be achieved remotely without direct hand contact with the cosmetic material or applying body.
Solution Approach 2:
The operating portion is extracted from the upper dial assembly and relocated to the bottom of the container main body. This separation removes the contaminating element (operating portion) from proximity to the applying body, eliminating hand soiling while maintaining compact overall device dimensions through vertical space utilization.
3Ease of operation
If the turning plate blocks the opening from the bottomed surface side, then the flow path can be controlled, but the structure becomes more complex
Solution Approach 1:
The shaft body serves multiple functions: it supports the turning plate, transmits rotational motion, and seals the opening in the bottom of the container. By combining multiple functions into a single component, the structure achieves flow path control without excessive complexity.
Solution Approach 2:
The operating portion and shaft body are combined into a single integrated component that protrudes from the bottom of the container. This merging reduces the number of separate parts while maintaining the rotational control function, simplifying the overall structure.
Data Source
AI summary
First openings and second openings are operated based on the rotation of a turning plate, thereby opening and closing the flow path for the cosmetic material. A dial portion, which serves as the operating portion of the turning plate, is provided in such a manner as to be exposed from the bottomed portion or the lateral surface in the vicinity of the bottomed portion of the container main body, and the dial portion is disposed apart from the applying portion, and when the dial portion is provided in such a manner as to be exposed from the bottomed portion, the dial portion is hidden on the bottomed portion of the container main body, so that it is unlikely that the hands of a user are soiled during the rotational operation of the dial portion.