Rotating Cosmetics Brush with Orbital Motion Actuator
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Solution Overview
Problem
Cosmetic applicators, such as brushes and sponges, often become coated or lost when carried with cosmetics, leading to inefficiencies in application and convenience.
Innovation Solution
A rotating cosmetics brush with a simplified construction that moves in unison and travels along a non-circular path without oscillation, powered by a single motion actuator, allowing for efficient and directed application of cosmetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a loose applicator is stored within a cosmetics case with the cosmetic, then the applicator is readily accessible, but the applicator becomes coated or soiled with the cosmetic and may get lost or separated
Solution Approach 1:
The device is divided into a removable brush head that can be separated from the handle. The brush head contains the cosmetic reservoir and applicator, while the handle contains the motor. This segmentation allows the brush head to be easily removed for cleaning or replacement, preventing cosmetic contamination and loss while maintaining accessibility.
Solution Approach 2:
The brush head nests within the handle when not in use, similar to a doll inside a dollhouse. The brush head can be inserted into a receptacle in the handle, keeping it securely stored and accessible while preventing it from getting lost or soiled with external cosmetics.
2Productivity
If a traditional applicator is used, then the construction is simple, but the applicator cannot provide directed rotational movement for efficient cosmetic application
Solution Approach 1:
The motor in the handle serves multiple functions: it provides rotational movement to the brush head for efficient application, and can be controlled to adjust rotation speed and direction. This multi-functionality increases application efficiency without proportionally increasing overall device complexity, as the same motor controls both rotation and movement along the orbital path.
Solution Approach 2:
The brush head moves not only in rotation around its own axis but also along an orbital path in a second dimension. This orbital movement, achieved through the interaction of the motor-driven gear and the guide element with the flat surface, allows the brush to cover a wider area and apply cosmetic more efficiently without requiring multiple separate mechanisms.
3Productivity
If the brush head rotates and moves along an orbital path, then cosmetic application efficiency is improved, but the construction becomes more complex than prior art devices
Solution Approach 1:
The rotational movement and orbital movement functions are merged into a single integrated mechanism. The motor drives the brush head to rotate while simultaneously moving it along the orbital path through the gear-and-guide-element interaction. This merging eliminates the need for separate mechanisms for each type of movement, improving productivity without proportionally increasing construction complexity.
Solution Approach 2:
The guide element with the flat surface passively guides the brush head's orbital movement through the interaction with the motor-driven gear. The system uses its own operational forces (the motor's rotation) to automatically generate the orbital path, without requiring additional actuators or complex control mechanisms. This self-service approach achieves efficient multi-axis movement while minimizing added complexity.
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
The rotating cosmetics brush provides a convenient and efficient means of applying cosmetics, reducing the likelihood of the applicator becoming coated or lost, while ensuring consistent and effective application.
Implementation Method 1
the motion actuator is operative to rotate a shaft which is linked to the brush head, wherein rotation of the shaft causes rotation of the brush head
Implementation Method 2
the motion actuator is operative to move an eccentric cam which is arranged to move a guide element, and wherein the shaft is journaled in the guide element so that in addition to the rotation of the shaft, the shaft moves together with the guide element
Implementation Method 3
the guide element includes a lug which is arranged to move in a track formed in the housing member
Data Source
AI summary
A rotating cosmetics brush includes a movable brush head mounted in a housing. A motion actuator is operative to move the brush head in a rotational motion, wherein the brush head rotates about a rotational axis and simultaneously moves in a non-oscillatory movement about another axis different than the rotational axis.