Reversible Squeegee Blade Assembly for Tool-Free Field Maintenance
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Solution Overview
Problem
Existing squeegee systems in surface maintenance machines are cumbersome to disassemble and replace, requiring multiple replacements during the machine's life and often necessitating tools in limited field environments.
Innovation Solution
A reversible squeegee system with a squeegee frame and assembly that includes flexible front and rear squeegee blades and a retainer, allowing for easy reversal between two configurations without removing the blades from the retainer, thus simplifying assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional squeegee blades are replaced multiple times during machine life, then cleaning effectiveness is maintained, but maintenance time and operational downtime increase
Solution Approach 1:
The squeegee blade assembly is designed to be dynamically reconfigurable, allowing blades to be rotated 180 degrees and reused on the opposite side. This dynamic adaptation extends blade life from single-use to multi-use, reducing maintenance frequency while maintaining cleaning effectiveness through the use of fresh blade surfaces.
Solution Approach 2:
Instead of discarding worn squeegee blades entirely, the system recovers them by rotating them to use the opposite side. This recovery process extends the service life of each blade significantly, reducing the number of replacements needed while ensuring cleaning effectiveness is maintained through continuous access to unworn blade surfaces.
2Reliability
If squeegee blades are disassembled and replaced in the field, then cleaning performance is restored, but the process becomes tedious and time-consuming
Solution Approach 1:
The squeegee blade assembly is segmented into modular components that can be independently manipulated. The retainer system separates the blade from the mounting structure, allowing for easy rotation and reattachment without requiring full disassembly. This segmentation enables field maintenance to be performed quickly and easily while restoring cleaning performance.
Solution Approach 2:
Instead of replacing blades in the traditional linear fashion (remove old blade, install new blade), the system inverts the approach by rotating the existing blade 180 degrees to present a fresh surface. This inversion eliminates the need for blade replacement entirely in many cases, greatly simplifying field maintenance while restoring cleaning performance.
3Ease of operation
If limited tools are available in field environments, then portability is improved, but blade replacement capability is reduced
Solution Approach 1:
The squeegee blade system is designed to be self-servicing through its rotation capability. The retainer mechanism allows operators to rotate and reuse blades without requiring external tools or specialized equipment. This self-service design maintains full blade replacement and renewal capability in field environments with limited tool availability.
Data Source
AI summary
A reversible squeegee system for a surface maintenance machine that includes a squeegee frame and a squeegee assembly with front and rear squeegee blades held by a retainer. The squeegee assembly is releasably connectable to the squeegee frame in a first configuration with a first surface of the retainer facing the floor. The squeegee assembly is releasably connectable to the squeegee frame in a second configuration with the second surface of the retainer facing the floor. The squeegee assembly is reversible between the first configuration and the second configuration while the front and rear squeegee blades remain connected to the retainer.