Refillable Stick Foundation Container Latching Mechanism

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Solution Overview

Problem

The existing stick foundation containers are not easily refillable, leading to economic losses due to high manufacturing costs and contamination issues, and there is a need for a design that allows for simple replacement of the stick foundation.

Innovation Solution

A refillable stick foundation container with a latching protrusion and coupling block mechanism that allows the stick foundation to be easily exposed or hidden, enabling simple replacement by rotating the assembly within a guide tube and using helical protrusions for ascending and descending the foundation holder.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the stick foundation is disposed of after use, then the container can be discarded, but economic losses occur due to high manufacturing costs

Engineering Contradiction:

Improvecontainer reusabilityVSAvoideconomic loss

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The foundation container is divided into two separable parts: a reusable container body and a replaceable foundation stick. This segmentation allows the container to be refilled multiple times, reducing waste and economic loss while maintaining reliability through consistent container quality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The design enables recovery of the container body after the foundation is consumed. The container can be retained and refilled with new foundation sticks, while only the consumed foundation sticks are discarded, thereby reducing overall waste and economic loss.

Inventive Principle:

Principle #34Discarding and recovering

2Adaptability or versatility

If the puff is placed inside the container for storage, then the container serves dual purpose, but the puff becomes contaminated leading to foundation contamination

Engineering Contradiction:

Improvecontainer functionalityVSAvoidcontamination

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The puff is extracted from the container storage space and stored separately. The container is designed to hold only the foundation stick, eliminating the risk of puff contamination while maintaining versatility through dedicated storage for each component.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

A protective cap or cover acts as an intermediary between the foundation and the puff. The cap covers the foundation tip when not in use, preventing direct contact with the puff and thus preventing contamination while allowing both items to be stored together.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If a latching mechanism is added to enable refillability, then the container becomes reusable, but the device complexity increases

Engineering Contradiction:

ImproverefillabilityVSAvoidlatching mechanism

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The latching mechanism is segmented into simple, discrete components: a latching protrusion on the foundation stick and a corresponding latching groove on the container. This segmentation creates a refillable system without requiring complex mechanisms, maintaining simplicity while achieving versatility.

Inventive Principle:

Principle #1Segmentation

4Ease of operation

If the foundation holder ascends and descends during rotation, then the foundation can be exposed or hidden, but the mechanism requires precise guidance

Engineering Contradiction:

Improvefoundation exposure controlVSAvoidguide slot alignment

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The guide slots and guide projections use curved or inclined surfaces rather than sharp angles. This curvature allows the foundation holder to smoothly ascend and descend during rotation while providing self-alignment that reduces manufacturing precision requirements.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The guidance mechanism uses a combination of vertical guide slots and rotational motion. The foundation holder moves vertically along the guide slots while the container rotates, creating a two-dimensional motion path that simplifies the guidance requirements compared to purely vertical movement.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12127662B2Refillable stick foundation container

Publication Date: 2024.10.29 ACOSPACK CO LTD

AI summary

A refillable stick foundation container is provided. The refillable stick foundation container includes; an assembly accommodating a stick foundation and having a latching protrusion protruding downward from the lower surface thereof; a rotary tube accommodating the assembly inserted thereinto such that the lower surface of the assembly is seated on the bottom thereof, having an open hole which is formed at the bottom thereof and into which the latching protrusion is inserted, and rotating relative to the assembly such that the stick foundation is upwardly exposed or hidden; and a coupling block laterally slidably inserted into and in close contact with the lower surface of the rotary tube and having a latching portion which is formed on the upper surface thereof and to which the latching protrusion is latched.