Brush With Compound Bristles and Apertured Paddle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing utility brushes, such as kitchen brushes, often have uniform bristle constructions that are either too stiff or too soft, leading to limited utility, and may have fibrous bristles that become loose or bent, poor ergonomic design, and inadequate liquid retention during basting operations.
Innovation Solution
A brush with a molded plastic construction featuring a compound bristle arrangement, including a hard paddle portion and soft bristle portion, non-fibrous bristles, and an ergonomic design with a handle and head assembly that includes a paddle with apertures for improved liquid retention and ease of use, particularly for individuals with impaired gripping ability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If uniform bristle construction is used, then the brush is simple to manufacture, but the brush is either too stiff or too soft for other applications, limiting overall utility
Solution Approach 1:
The brush employs a compound bristle arrangement where different regions of the brush head have different bristle properties. The first bristle portion has bristles with a first degree of flexibility while the second bristle portion has bristles with a second degree of flexibility, allowing each region to perform optimally for its specific function while maintaining a unified brush structure that is relatively simple to manufacture.
2Ease of manufacture
If fibrous bristles are used, then the brush is easy to manufacture, but the bristles tend to come loose and become bent or creased
Solution Approach 1:
The brush uses a composite construction combining a molded plastic body with integrated bristle portions. The bristles are formed as part of the plastic structure rather than being separate fibrous materials, creating a durable composite that maintains its shape and prevents bristle loosening while remaining economical to manufacture through injection molding processes.
3Device complexity
If traditional brush construction is used for basting, then the brush is simple in design, but it has poor liquid retention and drips excessively
Solution Approach 1:
The brush incorporates a porous paddle portion with multiple apertures formed therein. This porous structure increases the surface area and capacity for liquid retention while maintaining a relatively simple overall design. The apertures allow the brush to hold more liquid for basting operations without requiring complex reservoir structures.
4Quantity of substance
If brush is designed for effective liquid application, then liquid retention is improved, but the brush becomes more complex and expensive
Solution Approach 1:
The brush merges the liquid retention function directly into the existing brush head structure by forming apertures in the paddle portion. This integration allows the brush to hold more liquid without adding separate reservoirs or complex mechanisms, maintaining relative design simplicity while improving liquid application capability.
5Ease of manufacture
If traditional handle design is used, then the brush is simple to manufacture, but it is difficult to grip and manipulate for persons with impaired gripping ability
Solution Approach 1:
The handle portion features a curved, ergonomic configuration that conforms to the natural shape of a human hand. This curved geometry provides improved grip and manipulation for persons with impaired gripping ability while remaining simple to manufacture through standard molding techniques, as the curvature is achieved through the molding process rather than complex machining.
Data Source
Figure 1~3
Figure 4~7
Figure 8~10
AI summary
A brush (10) includes a handle (11) and a head (13) having an array of bristles (45) and a paddle (31) with a plurality of apertures(39 formed therein. The paddle and bristles may be formed of silicone.