Movable Disc Scrub Head for Central Cleaning and Side Access
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Solution Overview
Problem
Centrally positioned scrub brushes in larger floor cleaners are difficult to inspect and replace due to their location beneath the cleaner, requiring operators to either raise the machine or crawl underneath, making the process cumbersome and inaccessible.
Innovation Solution
A scrub head design that includes a movable disc scrub member capable of moving along orthogonal axes in a horizontal plane, allowing it to be easily accessed and relocated from a central position beneath the cleaner to a side position for easier inspection and replacement, facilitated by a pivotal connection and latch mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If scrub brushes are centrally positioned beneath the cleaner, then cleaning coverage is improved, but accessibility for inspection and replacement deteriorates
Solution Approach 1:
The scrub brush assembly is made dynamically movable relative to the cleaner frame through a lifting mechanism. The assembly can be raised to a first position for easy accessibility during inspection/replacement and lowered to a second position for centralized cleaning operation. This dynamic repositioning resolves the contradiction between centralized positioning for cleaning coverage and accessibility for maintenance.
Solution Approach 2:
The scrub brush assembly is moved along a vertical dimension (up and down movement) in addition to its horizontal positioning. By lifting the assembly vertically to a raised position, operators gain easy access to the scrub brushes without needing to crawl underneath the cleaner. This addition of vertical movement dimension solves the accessibility problem while maintaining centralized horizontal positioning for cleaning coverage.
2Productivity
If scrub brushes are centrally positioned beneath the cleaner, then cleaning efficiency is improved, but maintenance complexity increases
Solution Approach 1:
The lifting mechanism enables the scrub brush assembly to be dynamically repositioned between a lowered cleaning position and a raised maintenance position. This dynamic capability allows efficient centralized cleaning operations while simplifying maintenance tasks, as operators can easily raise the assembly for inspection and replacement without complex procedures.
3Ease of operation
If the cleaner is raised on a lift for inspection, then accessibility is improved, but operational time and complexity increase
Solution Approach 1:
The cleaning system is segmented into a movable scrub brush assembly and a stationary cleaner body. The assembly can be independently raised and lowered, allowing maintenance operations to be performed without raising the entire cleaner on an external lift. This segmentation eliminates the time-consuming process of lifting the whole machine while maintaining accessibility for inspection.
Solution Approach 2:
The integrated lifting mechanism allows the scrub brush assembly to be quickly raised and lowered as needed for maintenance operations. This dynamic, on-demand repositioning eliminates the need for prolonged lifting operations and reduces maintenance time compared to using external lift equipment.
Data Source
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AI summary
A scrub head (100) includes a first disc scrub member (140A), a movable support (170) having first (154) and second positions (156), and a movable disc scrub member (140M). The first disc scrub member (140A) is rotatable about a first vertical axis (144). The movable disc scrub member (140M) is rotatable about a second vertical axis (144) and is connected to the movable support. The movable disc scrub member (140M) is configured to move relative to the first disc scrub member (140A) along first (150) and second orthogonal axes (152) of a horizontal plane (148), which is transverse to the first and second vertical axes (144), between first (154) and second positions (156) respectively corresponding to the first and second positions of the movable support (170).