Cosmetic Container Sliding Sleeve and Rotating Joint
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Solution Overview
Problem
Cosmetic containers with application members often experience unintended cosmetic leakage or movement when not in use, leading to excessive holding of cosmetics by the application member.
Innovation Solution
A cosmetic container design featuring a cylindrical barrel, a bottle with a sliding sleeve that can expose or cover the application member, and a joint with an opening and closed portion that allows or prevents cosmetic flow, preventing leakage by overlapping the closed portion with the bottle opening when not in use and allowing flow when intended for application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cosmetic container is designed with an open structure for easy application, then the ease of operation is improved, but cosmetic leakage occurs when not in use
Solution Approach 1:
The joint is designed to rotate relative to the bottle around an axis, transitioning between an open state (opening portion overlapping bottle opening) for application and a closed state (closed portion overlapping bottle opening) for leakage prevention. This dynamic mechanism allows the structure to adapt between accessibility and protection based on usage state
Solution Approach 2:
The joint acts as an intermediary mechanism between the bottle and the external environment. It controls the interaction between the bottle opening and the opening portion, mediating cosmetic flow only when intended through rotational movement, while preventing unintended leakage in the closed position
2Ease of operation
If the application member is continuously exposed for easy access, then the ease of operation is improved, but the cosmetic is excessively held by the application member
Solution Approach 1:
The sleeve is pre-configured to cover the application member when not in use, and the joint is pre-positioned in the closed state. This preliminary protective action prevents cosmetic from reaching the application member during storage and transport, eliminating excessive cosmetic holding while maintaining easy access when the sleeve is moved during actual application
3Reliability
If the joint structure is made complex to control cosmetic flow, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The joint is segmented into distinct functional portions: an opening portion for allowing cosmetic flow, a closed portion for preventing flow, and a rotational connection to the bottle. This segmentation allows each portion to perform its specific function independently, achieving reliable cosmetic flow control through a relatively simple modular structure rather than a complex monolithic design
Data Source
AI summary
A cosmetic container with an application member includes a cylindrical barrel, a core, a bottle that is configured to accommodate cosmetic and has an opening, a sleeve, and a joint that has an opening portion and a closed portion. The sleeve is configured to expose the application member or cover an outer circumference of the application member by a sliding operation of the sleeve. When the sleeve slides for exposing the application member, the opening portion overlaps with the opening so that the cosmetic passes through the opening portion and the opening. When the sleeve slides for covering the outer circumference of the application member, the closed portion overlaps with the opening to prevent the cosmetic from passing through between the joint and the bottle.