Lipstick Casing Anti-Slip Design via Local Quality
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Solution Overview
Problem
The existing lipstick arrangements with smooth and lustrous exterior surfaces become slippery when smeared with lipstick, making them uncomfortable to hold and use, especially when applying lipstick with smeared makeup or moisture on the hands.
Innovation Solution
A lipstick arrangement featuring a casing with a sloping top portion and a protruding element, providing a better grip and preventing slipping, along with a protective covering that snap-fits onto the casing for secure storage and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the casing has smooth and lustrous exterior surfaces for aesthetic appearance, then the appearance is attractive, but the surfaces become slippery when smeared with lipstick making them uncomfortable to hold
Solution Approach 1:
The patent applies different surface properties to different parts of the casing. The exterior surfaces maintain smooth and lustrous finish for aesthetic appeal, while the top portion is designed with a textured or patterned surface that provides enhanced grip. This local differentiation allows each region to fulfill its specific function without compromising the other.
Solution Approach 2:
The casing is segmented into distinct functional zones: the body portions (first and second portions) maintain smooth lustrous surfaces for aesthetics, while the top portion is separately designed with grip-enhancing characteristics. This segmentation allows independent optimization of each region's surface properties.
2Shape
If the exterior surfaces are smooth and lustrous for aesthetic reasons, then the appearance is improved, but the grip and control during application deteriorates
Solution Approach 1:
Different surface qualities are assigned to different regions: the exterior surfaces of the first and second portions retain smooth lustrous finish for aesthetic purposes, while the top portion features a textured surface with enhanced friction properties for improved grip and control during lipstick application.
3Ease of manufacture
If the casing is designed with smooth surfaces, then manufacturing is simpler, but user comfort during application is reduced
Solution Approach 1:
The patent implements local quality differentiation where the majority of the casing surfaces (first and second portions) maintain simple smooth manufacturing for ease of production, while the top portion is specifically engineered with textured or patterned surfaces that provide enhanced user comfort and grip during application.
4Ease of operation
If the lipstick bullet is deployed fully, then application capability is maximized, but the risk of breaking increases
Solution Approach 1:
The protective covering is designed to remain in place until just before application is needed. It provides continuous protection during storage and transport, and is removed only when the user is ready to apply lipstick, thereby minimizing the time the lipstick bullet is exposed and vulnerable to breakage.
Solution Approach 2:
The protective covering acts as a cushioning and protective barrier before the lipstick bullet is deployed. It prevents accidental contact and potential breakage during storage and handling, allowing full deployment capability when needed while maintaining reliability during non-use periods.
Data Source
AI summary
A lipstick arrangement including a casing and a protective covering. The casing includes a first part including a carrier at a bottom region, a second part and a protruding element attached to the second part. Lipstick bullet is mounted on the carrier and has an elongate shape including a sloping top portion. The carrier is operatively coupled to the first part and the second part and the carrier is arranged to move in an axial direction relative to the second part in response to the first part being rotated relative to the second part. The protective covering covers the first part of the casing when applied to the casing. The sloping top portion of the lipstick bullet is configured to face away from the protruding element when the lipstick bullet is unscrewed to a fully deployed position.