Paint Brush with Storage Chamber for Uniform Application
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Solution Overview
Problem
Existing brushes fail to provide a consistent and even application of paint due to the free movement of liquid paint in the paint channel, leading to irregular application and poor smoothing, and the mixing of fine and natural bristles is time-consuming and expensive.
Innovation Solution
A brush design with a material chamber containing storage bristles with a rough surface that adhere and gradually release paint, separate from the main bristle plane, allowing for delayed and continuous paint delivery to fine, smooth bristles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If liquid paint is allowed to move freely in the paint channel, then the brush can pick up paint quickly, but the paint application becomes uneven and spurs downwards
Solution Approach 1:
The brush is segmented into two functional zones: a paint channel for rapid paint pickup and a material chamber with storage bristles for controlled paint release. This segmentation allows the brush to simultaneously achieve quick paint absorption and uniform paint application by separating the pickup function from the release function.
Solution Approach 2:
The material chamber with storage bristles acts as an intermediary between the paint channel and the brush bristles. It receives paint from the paint channel and gradually releases it to the brush bristles, preventing direct contact between free-moving paint and the application surface, thus ensuring uniform paint distribution.
2Manufacturing precision
If fine, smooth bristles are used for high-quality painting, then surface finish quality improves, but paint absorption capacity decreases and paint releases too quickly
Solution Approach 1:
The brush divides the paint handling function between two bristle systems: fine, smooth bristles for high-quality surface finish and storage bristles with rough surfaces for paint absorption and retention. This segmentation allows each bristle type to be optimized for its specific function without compromise.
Solution Approach 2:
The storage bristles serve as an intermediary reservoir that holds paint and gradually releases it to the fine bristles. This mediator function compensates for the low paint absorption capacity of fine bristles while maintaining their smooth surface properties for high-quality finish.
3Manufacturing precision
If bristle mixtures of fine synthetic and natural bristles are used to balance absorption and release, then paint distribution improves, but production becomes time-consuming and expensive
Solution Approach 1:
Instead of mixing different bristle types throughout the brush head, the invention segments them into distinct functional zones: storage bristles in the material chamber and fine bristles at the brush tip. This spatial segmentation simplifies manufacturing compared to homogeneous mixing while achieving the same paint distribution benefits.
Solution Approach 2:
Different regions of the brush have different bristle properties optimized for their specific functions: rough storage bristles for paint absorption and retention in the material chamber, and smooth fine bristles for quality paint application at the tip. This local quality differentiation achieves uniform paint distribution without complex mixing procedures.
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
Ensures paint is delivered slowly and evenly to the bristles, maintaining quality and preventing drips, while allowing for adjustable bristle lengths and positions to optimize paint distribution.
Implementation Method 1
storage bristles which have a rough or scaly surface in order to allow the brushable material to adhere to it for a longer period of time and to be able to release it gradually into the cavity
Data Source
Figure 1~3
Figure 4~5
AI summary
A brush for applying a brushable material, comprising a brush head and a brush head holder, wherein the brush head carries bristles arranged in a wreath, which form a material chamber for the brushable material in their center of the wreath and whose bristle tips lie in substantially a main plane of the bristles, wherein a storage medium for receiving and delayed release of the brushable material is arranged in the material chamber, which sets the storage medium back towards the brush head with respect to the main plane of the bristles and together with these defines a cavity open to the main plane of the bristles on the brush head side.