Cosmetic Housing Base Locking Geometry for Stable Part Anchoring
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Solution Overview
Problem
Existing cosmetic product housings face challenges in securely anchoring contents without using excessive anchor points, especially when made from transparent materials, and require solutions to prevent parts from falling out or rotating excessively.
Innovation Solution
A housing design featuring locking mechanisms with complementary hollow and protruding elements on the lateral walls and bottoms of compartments and parts, reducing the number of anchor points needed, while preventing movement and rotation, and avoiding the 'water drop' effect by maintaining contact and clearance between the parts and the transparent support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If welding points or gluing points are used to lock parts in compartments, then the parts are securely anchored and resistant to impacts and pulling forces, but the number of anchor points increases which is problematic for transparent materials
Solution Approach 1:
The invention transitions from point-based anchoring (welding/gluing points) to surface-based anchoring using complementary geometric shapes. The protruding element with fin configuration distributes locking force across multiple contact points along the lateral wall, effectively moving from zero-dimensional point contacts to one-dimensional line/surface contacts, thereby reducing the number of discrete anchor points while maintaining reliability
Solution Approach 2:
The locking mechanism is segmented into complementary components: a hollow element in the compartment and a protruding element with fins on the part. This segmentation allows each element to perform a specific function (receiving and providing locking surfaces) while working together to achieve secure anchoring with fewer overall anchor points
2Stability of the object's composition
If multiple anchor points are used to prevent part rotation and movement, then structural integrity is maintained, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The complementary geometric shapes (hollow element and protruding element with fins) are designed to automatically align and lock together during assembly. The fin configuration creates self-centering and self-locking effects that guide the part into its correct position and orientation without requiring precise manual alignment or additional fastening operations, thereby simplifying assembly while maintaining stability
Solution Approach 2:
The protruding element features asymmetric fin configuration that provides directional locking capabilities. The fins are arranged to prevent rotation around specific axes while allowing controlled insertion, creating inherent stability through asymmetric geometry rather than requiring symmetric multiple anchor points
Data Source
AI summary
The invention relates to a housing base suitable for containing a cosmetic product and comprises a compartment, a part, a first hollow element, a second protruding element, a third hollow element and a fourth protruding element. The compartment comprises a bottom and a lateral wall. The part for containing a cosmetic product is embedded in the compartment and comprises a bottom and a lateral wall. The first hollow element is fitted with a second protruding element and the hollow element is fitted with a fourth protruding element. One of the first or second elements is fitted into the lateral wall of the compartment and the other is fitted into the lateral wall of the part. One of the third or fourth elements is fitted into the bottom of the compartment and the other being fitted into the bottom of the part.