Lipstick Container Helicoidal Guide Mechanism
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Solution Overview
Problem
Existing cosmetic containers face issues such as shutter wear leading to interference with the cosmetic product, difficulty in adjusting opening and lifting speeds, and incompatibility with circular cross-section containers, resulting in a less-than-ideal user experience and product preservation.
Innovation Solution
A cosmetic container design featuring a lower and upper outer container with concentric rotation, a support shuttle with guide pins, and a shutter with double helicoidal grooves, allowing smooth rotation and opening without product interference, and adaptable to circular cross-sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a foldable shutter is used to cover the pass-through opening, then the cosmetic product is protected when the container is closed, but the shutter bends and wears out due to repeated use, interfering with the cosmetic product during opening
Solution Approach 1:
The shutter mechanism is completely removed from the invention. Instead of using a foldable shutter that covers the pass-through opening, the patent employs a support with a cosmetic product receiving cavity that is selectively positionable between a first position (covering the opening) and a second position (exposing the opening). The support itself performs the protective function without requiring a separate shutter component, thereby eliminating the reliability issues associated with shutters.
Solution Approach 2:
The support structure is given multiple functions: it holds the cosmetic product, selectively covers the pass-through opening to protect the product, and guides the ejection motion. This multi-functional design eliminates the need for a dedicated shutter component, reducing the number of moving parts and improving overall system reliability.
2Ease of operation
If the opening speed of the shutter and lifting speed of the support are well adjusted, then the cosmetic product is properly exposed, but the realization becomes difficult requiring careful adjustment of slope variations
Solution Approach 1:
The invention employs a dynamic ejection mechanism where the support is constrained to move along a predetermined ejection path that combines vertical lifting and horizontal displacement. This dynamic motion is achieved through guide elements and cam surfaces that automatically coordinate the opening and lifting speeds during rotation, eliminating the need for manual adjustment of slope variations while maintaining proper cosmetic product exposure.
Solution Approach 2:
Guide elements and cam surfaces act as intermediaries between the rotating container body and the support. These intermediaries translate the rotational motion into the coordinated vertical and horizontal movements of the support, automatically synchronizing the opening and lifting speeds without requiring direct adjustment of the support's mechanical properties.
3Adaptability or versatility
If the covers have a quadrangular cross section, then the shutter operation works, but the design is not compatible with circular cross section containers
Solution Approach 1:
The support structure is designed with a universal geometry that can function effectively with both circular and quadrangular container cross-sections. The guide elements and ejection mechanism are configured to work with the rotational motion regardless of the specific cross-sectional shape, making the invention adaptable to various container designs without compromising operational effectiveness.
Solution Approach 2:
The ejection mechanism employs asymmetric guide surfaces and cam profiles that can accommodate different cross-sectional geometries. By designing the guide elements with appropriate clearance and flexibility, the system can adapt to the specific geometry of the container (circular or quadrangular) while maintaining the coordinated opening and lifting motion of the support.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances the container's durability, ease of production, and compatibility with various cross-sections, ensuring smooth operation and preventing product damage during use.
Implementation Method 1
The outer cylindrical body (40) is mounted on the lower outer container (20) and the inner cylindrical body (60) is rotatably mounted with the outer cylindrical body (40) so that they can be rotated relative to one another about a longitudinal axis (L) along which they are concentric.
Implementation Method 2
The outer cylindrical body (40) comprises two first helicoidal guides (49). Each guide pin (75) of the support (70) passes through a respective longitudinal guide (65) of the inner cylindrical body (60) and is channelled in a respective first helicoidal guide (49) of the outer cylindrical body (40) to be guided during a rotation step of the inner cylindrical body (60) with respect to the outer cylindrical body (40).
Implementation Method 3
A foldable shutter (80) is slidingly mounted with the second helicoidal guide (47) of the outer cylindrical body (40) so that during the rotation step the foldable shutter (80) makes the container pass from a closed position when the shutter (80) covers the pass-through opening (35) to an open position where the shutter (80) leaves the pass-through opening (35) free.
Data Source
AI summary
Cosmetic container (10) for applying a cosmetic product (100) comprising a pass-through opening (35) for said cosmetic product (100), an outer cylindrical body (40) which comprises at least one inner helicoidal groove (47) and at least one outer helicoidal groove (49), an inner cylindrical body (60) which is rotatably mounted with the outer cylindrical body (40) about a longitudinal axis (L) along which they are concentric, where said inner cylindrical body (60) comprises at least one longitudinal guide slot (65), a support shuttle (70) for said cosmetic product (100) comprising at least one guide pin (75) which is slidingly engaged with said at least one longitudinal guide slot (65) and with said at least one inner helicoidal groove (47), a shutter (80) comprising at least one guide pin (85) which is slidingly engaged with said at least one outer helicoidal groove (49), said shutter (80) comprising a plurality of gores (87) being adapted to be bending deformed for opening and closing said pass-through opening (35).