Cleaning Tool Coupling Device for Trolley Shelf and Drawer Access
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Solution Overview
Problem
Cleaning trolleys with protruding handles obstruct access to upper shelves and drawers, making it inconvenient for operators to store and retrieve tools, as handles are typically secured along the perimeter edge, limiting access and requiring operators to move around the trolley to access tools on the opposite side.
Innovation Solution
A coupling device that allows for easy and ergonomic coupling and decoupling of cleaning tool frames to a trolley without manual contact, using a connection system with three parts: a lower part for stable fixation, an intermediate part for holding the frame, and an upper part with releasable connection devices that enable tool exchange with a single handle movement, keeping the frame stable and ready for reconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If handles are secured along the perimeter edge of the trolley, then tool retention is achieved, but access to upper shelves and drawers is obstructed
Solution Approach 1:
The coupling device transfers tool retention from the upper perimeter edge (2D surface) to the lower perimeter edge (different 2D surface), effectively changing the spatial dimension of attachment. This vertical displacement resolves the conflict by placing handles in a location that does not interfere with shelf access while maintaining secure tool retention through the same coupling mechanism
2Adaptability or versatility
If multiple tools are retained on the trolley, then tool availability is increased, but access to drawers becomes prevented
Solution Approach 1:
Multiple tools are retained at the lower perimeter edge of the trolley, utilizing the lower horizontal dimension rather than the upper perimeter. This spatial reorganization allows tools to be distributed around the lower edge without blocking the vertical access path to drawers and shelves, maintaining high tool availability while preserving full drawer accessibility
Data Source
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AI summary
Device for connecting and retaining the frame of cleaning items and/or cleaning tools to a fixed or mobile structure or a trolley.