Lipstick Holder Grip Surface for Hygienic Adjustment
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Solution Overview
Problem
Existing lipstick devices contaminate the application stick due to user contact with the holder and cap, leading to quality degradation and hygiene issues, especially in frequent or shared use.
Innovation Solution
A grip surface portion between the cap and adjusting element allows for adjustment without touching contaminated parts, and a barrier layer prevents substance contact between the cap and stick, ensuring hygiene and preventing substance mixing in refillable devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user manually touches the adjusting element and tube to enable their mutual adjustment, then the device can be operated easily, but contaminations from the hand will be conveyed to the tube and cap, leading to quality degradation of the application stick
Solution Approach 1:
The holder is divided into a first part (tube with cavity) and a second part (cap with adjusting element), where the adjusting element is integrated into the cap. This segmentation allows the cap to be removed separately, enabling adjustment operations without contaminating the tube interior and application stick.
Solution Approach 2:
The cap serves as an intermediary component that houses the adjusting element. By integrating the adjusting element into the cap rather than the tube, the design allows users to perform adjustments through the cap without their fingers contacting the tube interior or application stick, thus preventing contamination.
2Object-affected harmful factors
If the cap is applied over the open end of the tube to close the cavity in storage position, then the application stick is protected from dust and fouling particles, but the user must touch the tube to adjust the stick, which conveys contaminations to the cap and stick
Solution Approach 1:
The adjusting element is merged with the cap to form an integrated assembly. This allows the cap to serve dual functions: protecting the application stick when closed and enabling adjustment operations when removed, without requiring contact with the tube interior.
Solution Approach 2:
The cap is designed to be dynamically removable and reattachable to the tube. This dynamic capability allows the user to remove the cap for adjustment operations, perform adjustments without contaminating the tube interior, and then reattach the cap to restore protection.
3Productivity
If the device is used frequently or exchanged among multiple users, then the device remains useful and accessible, but residual contaminations within the cap increase and come into contact with the application stick
Solution Approach 1:
The holder is segmented into removable parts (cap and tube), allowing the cap to be separated for cleaning or replacement. This segmentation enables maintenance of hygienic conditions through easy disassembly and cleaning of the cap, which houses the adjusting element.
Solution Approach 2:
The design allows for the cap to be removed and potentially replaced or thoroughly cleaned between uses or when exchanged between users. This facilitates recovery of hygienic conditions by discarding accumulated contaminations through cleaning or replacement of the cap component.
Data Source
Figure 1
AI summary
A device for holding and utilizing an application stick (2), comprises a holder (1) which has a cavity in which the application stick is accommodated. The holder comprises a tube (3) surrounding the cavity in which tube the application stick can be axially adjusted between a storage position and an application position. The holder comprises at one end a manually detachable cap (4, 5) which closes the cavity at an open end of the tube. At an opposite end of the holder is provided an adjusting element (7) which is coupled via adjusting means (10, ..., 13) to the application stick for adjustment of the latter. The device is characterized in that the holder comprises a grip surface portion (6) between the adjusting element (7) and the cap (4, 5), which grip surface portion has a supporting face on an outside of the holder on which a user may rest at least a finger tip for adjusting the grip surface portion and the adjusting element relative to each other for an adjustment of the application stick.