Edge Cleaning Brush Drive and Tensioning for Better Debris Pickup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing edge cleaning brushes on floor cleaners often fail to effectively collect debris due to bristles flinging debris outside the cleaning path and are limited by their drive systems, which restrict placement on the cleaner.
Innovation Solution
A surface cleaning apparatus with an edge cleaning brush featuring a tensioner hub applying downward force and a gear system, including a worm and belt mechanism, to ensure debris is collected and the brush can be placed flexibly on the cleaner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional edge cleaning brush is used, then the brush can reach edges and corners, but the bristles fling debris outside the cleaning path
Solution Approach 1:
The patent inverts the conventional brush design by using a vertical rotation axis instead of horizontal, and positions the brush at an angle to the direction of motion. This inversion allows the brush to sweep debris inward toward the cleaning path rather than flinging it outward, directly resolving the debris collection problem while maintaining edge cleaning capability
2Adaptability or versatility
If a conventional drive system is used for the edge cleaning brush, then the brush can be mounted on the floor cleaner, but the drive system limits where the brush can be placed
Solution Approach 1:
The patent creates a universal mounting system where the edge cleaning brush can be positioned at various locations on the floor cleaner head through a standardized attachment mechanism. The brush assembly includes a mounting bracket that can accommodate different positions, allowing the same brush design to serve multiple placement configurations without requiring separate drive systems for each location
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 solution ensures efficient debris collection and flexible placement of the edge cleaning brush, preventing debris from being flung outside the cleaning path and enhancing the cleaning efficiency of hard-to-reach areas.
Implementation Method 1
a drive coupling between the brushroll and the edge cleaning brush includes a worm operably coupled with brushroll for rotation therewith
Implementation Method 2
a belt coupled with the second gear to transmit the rotational force of the two-stage gear to a driven gear coupled with the attachment hub of the edge cleaning brush
Implementation Method 3
a tensioner hub applying downward force onto the cleaning implement
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A surface cleaning apparatus can include a housing adapted to move across a surface to be cleaned, and an edge cleaning brush provided on the housing. The edge cleaning brush can include an attachment hub connectable with a drive coupling for rotating the brush, a cleaning implement configured to contact the surface to be cleaned, and a tensioner hub applying downward force onto the cleaning implement. Drive couplings for the edge cleaning brush are also disclosed, such as drive couplings including a worm and belt that are indirectly drive via a brushroll.