Ride-On Floor Scrubber Steering for Tight-Space Cleaning

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Solution Overview

Problem

Existing floor cleaning devices are inefficient and labor-intensive, particularly in tight spaces, due to limited maneuverability, inadequate storage, and the need for manual operation, which leads to incomplete cleaning and increased fatigue among operators.

Innovation Solution

A floor treatment apparatus with a chassis that supports the operator, featuring powered steering, self-propelled wheels, and modular design for easy maneuverability in tight spaces, along with integrated storage and a squeegee system that follows the scrub deck for effective cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional mop and bucket techniques are used, then cleaning can be performed with simple equipment, but cleaning efficiency is low and labor intensity is high

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidlabor intensity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The cleaning machine automatically propels itself forward using an electric motor-driven wheel, eliminating the need for manual pushing. The operator only needs to steer the machine using a steering wheel, significantly reducing labor intensity while maintaining cleaning efficiency

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical effort with an electric motor system. The motor drives the wheel to provide self-propulsion, and electrical components control the steering mechanism, substituting human physical labor with automated mechanical and electrical systems

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If walk behind floor treatment apparatus are used, then cleaning efficiency is improved, but maneuverability in tight spaces is limited

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidmaneuverability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic steering system where the steering wheel is connected to the wheel through a steering mechanism that allows real-time adjustment of the wheel's direction. This dynamic control enables the machine to navigate tight spaces and change direction easily while maintaining cleaning efficiency

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cleaning machine is designed with separable functional components including a removable brush assembly and modular tank system. This segmentation allows the machine to be configured for different cleaning scenarios and improves maneuverability by reducing overall complexity and size

Inventive Principle:
Principle #1Segmentation

3Productivity

If manually propelled cleaning devices are used, then device complexity is low, but cleaning completeness is insufficient

Engineering Contradiction:
Improvecleaning completenessVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent integrates multiple cleaning functions into a single machine: a brush assembly for scrubbing, a tank system for holding and dispensing cleaning solution, and a self-propulsion system. This multi-functionality ensures complete cleaning coverage while managing system complexity through integrated design

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The steering mechanism provides feedback control where the operator's steering inputs are transmitted through the steering wheel to adjust the wheel's direction in real-time. This feedback loop ensures precise control and complete cleaning coverage while maintaining manageable system complexity

Inventive Principle:
Principle #23Feedback

4Productivity

If self-propelled walk behind devices are used, then productivity is improved, but operator fatigue increases

Engineering Contradiction:
Improvecleaning productivityVSAvoidoperator fatigue
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The machine performs self-propulsion automatically through the electric motor system, eliminating the need for the operator to exert physical effort to move the machine. The operator only needs to steer and monitor the cleaning process, significantly reducing fatigue while maintaining high productivity

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3914137B1Floor treatment apparatus
Publication Date: 2024.07.24 KARCHER NORTH AMERICA INC
  • EP3914137B1 patent drawingFigure 1
  • EP3914137B1 patent drawingFigure 2
  • EP3914137B1 patent drawingFigure 3

AI summary

The present disclosure relates generally to an apparatus for cleaning or otherwise treating a floor or ground surface. Devices provided herein include various features to enhance the efficiency and efficacy of cleaning operations. Such devices includes, but are not limited to, bearing protector devices, cord and cable management devices, and ergonomic features useful with ride-on floor treating machines.