Cleaning tool for a floor cleaning machine and a floor cleaning machine
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Solution Overview
Problem
Existing floor cleaning machines face challenges in quickly and simply replacing cleaning tools due to limited play and guidance during the insertion process, leading to complex and time-consuming tool replacement procedures.
Innovation Solution
The design incorporates a tapered insertion region with a larger diameter than the holding region, providing increased play and guidance for tool head insertion, along with a ring-shaped wall and ribbed structure for non-rotatable coupling and snap engagement, facilitating easy tool attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a tight-fitting seating space is used to ensure secure tool holding, then tool stability is improved, but tool insertion becomes difficult due to limited play and guidance
Solution Approach 1:
The seating space is segmented into two distinct regions: an insertion region with larger diameter for easy tool insertion and guidance, and a holding region with smaller diameter for secure tool retention. This segmentation allows each region to optimize its function independently.
Solution Approach 2:
The seating space transitions from a larger cross-sectional area in the insertion region to a smaller cross-sectional area in the holding region, creating a tapered dimensional change that facilitates insertion while maintaining secure holding.
2Ease of manufacture
If a simple cylindrical seating space is used, then manufacturing is simplified, but tool guidance and alignment during insertion are insufficient
Solution Approach 1:
The tapered insertion region creates a self-aligning mechanism where the geometry itself provides the guidance potential, eliminating the need for complex alignment features or adjustment mechanisms.
Solution Approach 2:
The diameter parameter of the seating space changes along the axial direction, creating a tapered profile that provides both guidance and alignment functionality while maintaining manufacturing simplicity.
3Ease of operation
If a lifting device is added to lower the tool head for insertion, then insertion play is increased, but device complexity increases
Solution Approach 1:
The tapered insertion region geometry itself provides the necessary insertion play and guidance without requiring external lifting or positioning devices. The tool head can be inserted directly by exploiting the geometric play provided by the tapered design.
4Stability of the object's composition
If a non-rotatable coupling is implemented, then tool rotation control is improved, but coupling complexity increases
Solution Approach 1:
The coupling mechanism employs asymmetric features such as ribs with specific profiles and corresponding grooves that prevent relative rotation between the tool head and support element, achieving rotation control through geometric asymmetry rather than complex mechanical constraints.
Data Source
AI summary
A cleaning tool for a floor cleaning machine is proposed which includes a cleaning-action device and a supporting part on which the cleaning-action device is arranged and by means of which the cleaning tool is fixable to the floor cleaning machine, wherein the supporting part includes a seating having a wall and a seating space for a tool holding head of the floor cleaning machine which is bounded by the wall, and the wall includes a holding region for the tool holding head, wherein the wall includes an insertion region for the tool holding head to which the holding region is adjoined, wherein the seating space is widened in the insertion region in comparison with the holding region and tapers towards the holding region.