Compact Cosmetic Container Refill Mechanism

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Solution Overview

Problem

Conventional compact cosmetic containers do not allow for easy replacement of refill containers, leading to inconvenience and potential damage during the replacement process, especially for users with limited strength, resulting in resource wastage and economic burden.

Innovation Solution

A compact container design featuring a rotating intermediate body that allows the refill container to ascend and descend for easy separation and reinsertion, with a fastening mechanism to stabilize the refill container within the container body, facilitating convenient replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the refill container and outer container are forcibly separated by upwardly pushing the bottom portion of the refill container, then the refill container can be replaced, but a relatively weak woman may not easily separate the refill container from the outer container, and the bottom portion of the refill container may be crushed and damaged or the refill container may suddenly jumps and fly away

Engineering Contradiction:

Improveease of refill container replacementVSAvoidrisk of refill container damage or uncontrolled movement

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent employs a rotating intermediate body mechanism that converts rotational motion into vertical linear motion. When the intermediate body rotates, the refill container holder moves upward along a diagonal groove, transforming the replacement action from forceful pushing to controlled rotational movement. This dynamic mechanism reduces the force required for replacement and prevents uncontrolled jumping or damage.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The intermediate body serves as a mediator between the user's rotational input and the refill container's vertical movement. The diagonal groove structure within the intermediate body translates rotational motion into controlled upward movement, acting as an intermediary mechanism that ensures smooth, damage-free separation without requiring excessive force from the user.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the refill container holder is separated from the outer container for replacement, then the refill container can be changed, but the structure becomes complex requiring an intermediate body with rotating and moving-up/down mechanisms

Engineering Contradiction:

Improverefill container replaceabilityVSAvoidcontainer structure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into the intermediate body: it provides rotational movement, guides vertical translation through the diagonal groove, and supports the refill container holder. By combining these functions into a single intermediate component, the overall structural complexity is minimized while achieving the desired refill replacement capability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The intermediate body performs multiple functions simultaneously: it acts as a rotational interface for user input, a guide mechanism through the diagonal groove, and a support structure for the refill container holder. This multi-functionality reduces the need for separate components, thereby managing complexity while enabling refill replacement.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If the refill container is held in place within the outer container, then the cosmetic material can be stored securely, but the refill container cannot be easily removed for replacement

Engineering Contradiction:

Improverefill container stabilityVSAvoidrefill container removal ease

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system transitions from a static held-in-place state to a dynamic removal state through rotational movement. The intermediate body's rotation converts the stable, fixed position into controlled vertical movement along the diagonal groove, enabling easy removal without compromising the stability during normal use.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The intermediate body acts as a mediator that maintains stability during normal use but enables easy removal when activated. The diagonal groove mechanism within the intermediate body allows the refill container to transition from a stable, secured position to a removable position through rotational input, balancing both stability and ease of removal.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20240268538A1Compact container having refill container replacement structure

Publication Date: 2024.08.15 PUMTECH KOREA

AI summary

A compact container having a refill container replacement structure according to an embodiment of the present invention comprises: a container body having a moving-up/down diagonal groove formed therein; a container lid opening/closing the container body; a container lid opening and closing the container body; an intermediate body which is coupled to the inside of the container body to be rotatable within a certain section and has a moving-up/down vertical hole formed therein; a refill container holder which is coupled into the intermediate body and has a moving-up/down protrusion that is inserted in the moving-up/down diagonal groove through the moving-up/down vertical hole; and a refill container coupled to the refill container holder and accommodating content therein.