Adjustable Cosmetic Applicator Crumple Zone Sealing
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Solution Overview
Problem
Existing cosmetic applicator devices with adjustable stripper devices face issues with sealing integrity, particularly with volatile constituents, due to the dual function of the stripper device as both an adjustable opening and a seal, leading to potential leakage.
Innovation Solution
The design incorporates a crumple zone in the container, allowing for reversible length adjustment, which changes the position of the actuating means relative to the stripping means, improving sealing integrity and allowing for adjustable stripping without compromising the seal, using a flexible diaphragm and actuating sleeve to alter the stripping opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the stripper device is made adjustable to control the amount of cosmetic composition removed, then the precision of substance metering is improved, but the sealing integrity deteriorates due to the dual function requirement
Solution Approach 1:
The invention separates the sealing function from the adjustable stripper device by introducing a dedicated sealing arrangement (screw closure with sealing bead) independent of the stripper mechanism. This allows the stripper to focus solely on metering precision while the separate sealing system maintains container integrity, resolving the contradiction between adjustable metering and sealing reliability.
Solution Approach 2:
The invention introduces a dedicated sealing bead as an intermediary element between the screw closure and the container interior. This sealing bead acts as a specialized component that handles the sealing function, allowing the adjustable stripper device to perform its metering function without compromising the seal, thus resolving the functional conflict.
2Device complexity
If the stripper device performs dual function as both adjustable opening and seal, then the device complexity is reduced, but the sealing integrity deteriorates leading to potential leakage
Solution Approach 1:
The invention divides the container closure system into distinct functional segments: a screw closure for opening/closing, a dedicated sealing bead for sealing, and an independent adjustable stripper device for metering. This segmentation eliminates the need for the stripper to perform dual sealing and metering functions, preventing leakage while maintaining reasonable structural complexity.
Solution Approach 2:
The screw closure is designed with multi-functionality, serving both as the opening/closing mechanism and as the mounting structure for the sealing bead. This universal component approach maintains structural efficiency while allowing the stripper device to specialize in metering without sealing responsibilities.
3Quantity of substance
If the container is fully filled to maximize product capacity, then the volume of substance stored is improved, but the stripping action becomes inconsistent as too much or too little substance remains on the applicator
Solution Approach 1:
The invention makes the stripper device dynamically adjustable, allowing the user to modify the stripper opening size based on the remaining product quantity and desired application amount. This dynamic adjustment capability ensures consistent stripping action throughout the product lifecycle, from full container to near-empty, while maintaining optimal product capacity.
Solution Approach 2:
The invention enables parameter changes in the stripper opening dimensions through rotational adjustment, allowing the opening size to be varied to optimize the stripping action. This parameter adjustment ensures that whether the container is full or nearly empty, the applicator receives the appropriate amount of product, resolving the inconsistency in stripping action.
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
This solution enhances the sealing integrity of the container while maintaining adjustable stripping functionality, reducing the risk of leakage and allowing precise control over the amount of cosmetic product removed, even with volatile substances.
Implementation Method 1
a crumple zone (34) is provided in the container (30), by means of which the length of the container (30) can be reversibly changed in the longitudinal direction
Implementation Method 2
The stripping means (50) comprises a flexible diaphragm in which at least one stripping opening (52) is provided
Data Source
AI summary
An applicator device (10) for storing and applying a substance (20) to be applied, in particular a cosmetic substance, comprising: a container (30) for the substance having a container opening (32), an applicator implement (40), an adjustable stripping element (50) for the applicator implement, which is arranged at least partially in the region of the container opening, and an adjusting device for the action of the stripping means. The adjusting device (70) is formed by an actuating element (60) movable with respect to the stripping element for reversibly changing the stripping element, wherein the position of the actuating element is adjustable with respect to the stripping element by way of the adjusting device, and a crumple zone (34) in the container, by way of which the length of the container can be reversibly changed in the longitudinal direction, wherein the position of the actuating element is adjustable with respect to the stripping element by the change in length. The container substantially comprises an inner container casing (36) and an outer container casing (38), wherein the outer container casing (38) has the crumple zone (34) which is between a first outer container casing end (38a) and an open second outer container casing end (38b).