Dual-Brush Wheel Cleaner for Rim Spoke Coverage
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Solution Overview
Problem
Conventional wheel cleaning brushes experience reduced cleaning effectiveness due to bristles deflecting backward and becoming inactive when encountering wheel spokes, especially in small-diameter vehicle rims, as they fail to achieve effective longitudinal movement along the rim.
Innovation Solution
A brush design with a secondary brush rotating about its own longitudinal axis and positioned to extend beyond the main brush's effective radius, allowing it to sweep over the wheel hub and spokes at an acute angle, combined with a main brush for concentric rotational movement, ensuring comprehensive cleaning without bristle deflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional wheel cleaning brush is used with rotational movement perpendicular to the spokes, then the brush can clean the rim surface, but the bristles deflect backward and become inactive when encountering wheel spokes
Solution Approach 1:
The brush is divided into multiple independent brush elements (first brush elements and second brush elements) arranged in different radial positions. The first brush elements are positioned to clean the rim surface while the second brush elements are positioned to clean the spokes, allowing each segment to perform its function independently without interfering with the other
Solution Approach 2:
Different brush elements have different orientations and positions tailored to their specific cleaning tasks. The first brush elements are oriented for rim surface cleaning while the second brush elements are oriented for spoke cleaning, with each element's bristles angled to prevent deflection when encountering the surface it is designed to clean
2Productivity
If the brush uses a single rotational movement around the central axis, then the structure is simple, but the cleaning elements cannot achieve effective longitudinal movement along the rim and spokes
Solution Approach 1:
The brush elements are arranged in different radial positions (first radial position for rim cleaning, second radial position for spoke cleaning) in addition to the central rotational axis. This multi-dimensional arrangement allows the brush to simultaneously clean both the rim surface and spokes through a single rotational movement, effectively adding a radial dimension to the cleaning action
Solution Approach 2:
The brush is designed to perform multiple cleaning functions simultaneously - cleaning both the rim surface and the spokes - using a single rotational movement. The multiple brush elements are universally positioned to handle different cleaning tasks without requiring separate mechanisms for each function
Data Source
Figure 1~2b
Figure 3a~7
AI summary
The invention relates to a brush (1) for cleaning vehicle wheels (3). The brush (1) comprises a main brush (2.1) rotatable about a central axis (A1), which has a radius (R1) and a recess (2.1'). The brush (1) further comprises a secondary brush (2.2) rotatable about a longitudinal axis (A3), which has an effective radius (R2), wherein the longitudinal axis (A3) of the secondary brush (2.2) is arranged at a distance (E) from the central axis (A1), the effective radius (R2) is smaller than the radius (R1) of the main brush (2.1), the secondary brush (2.2) is arranged in the recess (2.1') of the main brush (2.1), and the secondary brush (2.2) rotates with the recess (2.1') when the main brush rotates about the central axis (A1). Furthermore, the brush (1) includes cleaning elements (5) which are arranged on the end face of the main brush (2.1) and the secondary brush (2.2).The brush is characterized in that the distance (E) of the central axis (A1) to the longitudinal axis (A3) is less than or equal to the effective radius (R2) of the secondary brush (2.2).