Cosmetic Container Opening System With Rotating Ring And Spring
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Solution Overview
Problem
Conventional cosmetic container opening systems are difficult for certain users to operate due to the need for twisting force, leading to complexity in mounting and stability issues, and the opening movement is too short and not ergonomic.
Innovation Solution
A container design featuring relief-shaped guiding and retaining members on the tank, a rotating ring with peg-shaped members, and a spring mechanism for easy engagement and disengagement, along with a plastic gasket for improved centring and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw threading and counterthreading are provided on the tank and cover for sealing, then sealing is guaranteed, but the opening system becomes difficult to operate for users with limited upper limb strength
Solution Approach 1:
The opening system is segmented into distinct functional components: a rotating ring with peg-shaped members for easy rotational engagement, a spring mechanism for providing opening force, and relief-shaped guiding members for sealing. This segmentation allows each component to specialize in its function, making the overall system easier to operate while maintaining sealing reliability.
Solution Approach 2:
The rotating ring with peg-shaped members acts as an intermediary between the user's manual operation and the cap closure. The pegs engage with the relief-shaped guiding members to transmit rotational motion, while the spring mechanism serves as an intermediary that stores and releases energy to assist the opening operation, reducing the effort required by users with limited strength.
2Ease of operation
If a rotating ring with appendixes and peg-shaped members is used for engagement, then ease of operation is improved, but mounting complexity increases
Solution Approach 1:
The rotating ring is merged with the cap structure, and the peg-shaped members are integrated into the ring body. The spring mechanism is positioned to work in conjunction with the relief-shaped guiding members that are already part of the tank structure. This merging reduces the number of separate components that need to be assembled, thereby reducing mounting complexity while maintaining the ease of operation provided by the rotating ring and pegs.
3Ease of operation
If appendixes project from the rotating ring body to engage with the tank, then engagement is achieved, but stability problems occur requiring high control of reliability standards
Solution Approach 1:
Instead of having appendixes project from the rotating ring, the design inverts the approach by providing relief-shaped guiding and retaining members on the tank structure itself. The peg-shaped members on the rotating ring then engage with these relief-shaped members in a complementary manner. This inversion provides better stability because the relief-shaped members on the rigid tank structure can more reliably guide and retain the pegs during rotation and opening operations.
4Volume of moving object
If the opening movement is kept compact, then device size is reduced, but the opening movement becomes too short and difficult to operate
Solution Approach 1:
The spring mechanism is configured to dynamically extend during the opening operation, providing a progressively increasing opening movement. As the cap rotates and opens, the spring expands, allowing the pegs to travel a longer distance along the relief-shaped guiding members. This dynamic extension of the opening movement makes the operation easier by providing a longer lever arm and more gradual force application, while the spring's compact coiled form when closed maintains a compact overall device size.
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
Simplifies the assembly process, enhances stability and ease of opening, and provides a longer, more ergonomic opening movement while maintaining sealing, resulting in improved user experience and product application precision.
Implementation Method 1
a spring mechanism for easy engagement and disengagement
Data Source
AI summary
Container for liquid or paste products of the type generically consisting of a tank and of a closing capsule, a stem being associated with suitable retaining structures with said capsule, said stem supporting an applicator, between said capsule and said stem a spring being arranged, said tank consisting of a cylindrical body, at the top of which there is provided a neck, apt to the insertion of the stem and to the tightening of the capsule to said tank, on the external periphery of said neck being provided shaped relief guiding and retaining members for peg members internally projecting from said capsule characterized in that on said capsule there is provided a fastening portion with a cylindrical coupling ring containing a rotating ring provided with at least one retaining tooth and with an engagement with said shaped relief guiding members provided on said neck.