Dish-washing Brush with Removable Bristle Sections
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Solution Overview
Problem
Conventional dishwash brushes are inadequate for cleaning both planar and highly concave surfaces due to limited bristle configurations and uniform bristle hardness, leading to inefficient removal of deposits on curved surfaces.
Innovation Solution
A dishwash brush with two distinct bristle regions, one for planar surfaces and another for concave surfaces, each with differently designed bristle ends and varying hardness, allowing for optimal cleaning of various surface types by alternating bristle use based on the task at hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single bristle area with uniform bristle hardness is used, then the brush structure is simple and manufacturing is easy, but the brush cannot effectively clean both flat and strongly concave surfaces
Solution Approach 1:
The brush head is divided into multiple bristle areas (first and second bristle areas) with different orientations and characteristics. Each bristle area is attached to a different side surface of the brush head body, allowing the brush to effectively clean both flat and strongly concave surfaces by selecting the appropriate bristle area for the specific cleaning task.
Solution Approach 2:
Different bristle areas are designed with different local qualities - the first bristle area has bristles oriented in a first direction suitable for flat surfaces, while the second bristle area has bristles oriented in a second direction suitable for concave surfaces. This local differentiation optimizes cleaning effectiveness for various surface geometries.
2Productivity
If bristles have uniform hardness across the entire bristle area, then manufacturing is simple, but the brush cannot optimally remove both lightly adhering and very strongly adhering deposits
Solution Approach 1:
The brush implements local quality by providing different bristle hardness levels in different bristle areas. The first bristle area contains bristles with a first hardness level optimized for lightly adhering deposits, while the second bristle area contains bristles with a second hardness level optimized for very strongly adhering deposits. This allows optimal deposit removal efficiency for various adhesion strengths.
3Productivity
If only the outer edge of a single bristle area is used for concave surfaces, then the brush structure remains simple, but the contact area between bristles and deposits is small making cleaning time-consuming
Solution Approach 1:
The brush head is segmented to provide a dedicated second bristle area specifically oriented for concave surface cleaning. This separate bristle area is attached to a different side surface of the brush head body with bristles oriented in a second direction, enabling the entire bristle area to contact concave surfaces simultaneously, thereby increasing cleaning speed and reducing the time required for effective cleaning.
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
To effectively handle different tasks when washing dishes with a dish brush—namely, removing dirt from a largely flat surface on the one hand and a strongly curved surface such as an inside corner on the other—differently shaped bristle sections, in particular as separate, removable, and thus replaceable bristle parts (5a, b), are attached to the outer surfaces (4a, b) of the brush head (1) of the dish brush according to the invention. The bristles (6) in the individual bristle sections (5a, b) have differently shaped bristle end surfaces (10a, b), and the bristles (6) of the different bristle sections (5a, b) can have different degrees of stiffness.