Electrostatic Sheet Roller Mechanism for Uneven Floor Cleaning

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Solution Overview

Problem

Existing domestic floor cleaning robots face issues with noise, inefficiency in removing sticky substances, and frequent manual replacement of electrostatic cleaning sheets, which are not effective on uneven or non-planar surfaces.

Innovation Solution

A cleaning device with an electrostatic sheet auto rolling mechanism, featuring a self-adjusting drive shaft, power gear set, and roller set that allows the dust cloth to stretch and adapt to floor irregularities, ensuring continuous contact and efficient cleaning without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If electrostatic cleaning sheets are used for floor cleaning, then noise is reduced and power consumption is lowered, but the cleaning sheets must be manually removed and replaced very frequently

Engineering Contradiction:
Improvepower consumptionVSAvoidtime for manual replacement
Core Design Contradiction:
Use of energy by moving objectVSLoss of time

Solution Approach 1:

The cleaning device is equipped with an automatic sheet replacement mechanism that uses a roller to feed and advance the electrostatic cleaning sheet automatically during operation, eliminating the need for frequent manual removal and replacement by the user

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The cleaning sheet is pre-loaded onto a roll and fed through a guide mechanism that automatically positions and replaces the sheet before it is fully consumed, allowing continuous operation without manual intervention

Inventive Principle:
Principle #10Preliminary action

2Reliability

If electrostatic cleaning sheets are mounted on a planar support pad, then cleaning performance on flat surfaces is achieved, but the sheets are not efficient for trailing and cleaning surfaces that are not planar or have grooves or recess

Engineering Contradiction:
Improvecleaning performance on flat surfacesVSAvoidadaptability to non-planar surfaces
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The support pad is designed with a flexible or adjustable structure that can change its shape or contour to match the surface being cleaned, allowing the electrostatic cleaning sheet to maintain contact with both flat and non-planar surfaces including grooves and recesses

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support pad uses a flexible membrane or thin film structure that can conform to irregular surface geometries, enabling the cleaning sheet to effectively trail and clean non-planar surfaces while maintaining electrostatic contact

Inventive Principle:
Principle #30Flexible shells and thin films

3Productivity

If the cleaning device is designed to contact tightly with the floor for enhanced cleaning performance, then cleaning efficiency is improved, but the device cannot adapt to irregularities in floor dimensions or unevenness in the floor surface

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidadaptability to floor irregularities
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The cleaning device incorporates a self-adjusting drive shaft mechanism that can dynamically change its position or angle in response to variations in floor surface height or irregularities, maintaining tight contact for enhanced cleaning while adapting to different floor conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The drive shaft is designed with adjustable parameters such as position, angle, or pressure that can be automatically modified to match the contours of the floor surface, allowing the cleaning device to maintain optimal contact pressure and alignment across uneven or irregular floors

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device reduces noise and energy consumption, enhances cleaning performance and efficiency by maintaining contact with uneven surfaces, prevents dust cloth damage, and allows for easy replacement and recycling, while the ratchet gear ensures the dust cloth is not overstretched.

Implementation Method 1

robotic device using electrostatic cleaning cloths

Methodology Applied
Scientific EffectElectrostatic adhesion: Electrostatics

Implementation Method 2

roller set, mounted on the frame, being driven to function by the power gear set for transporting a dust cloth while enabling the same to be stretched

Methodology Applied
Scientific EffectMechanical force: Mechanical Force

Implementation Method 3

a self-adjusting set, mounted on the frame while capable of moving relative to the frame in a reciprocating manner

Methodology Applied
Scientific EffectReciprocating motion:

Data Source

PatentUS8650692B2Cleaning device with electrostatic sheet auto rolling
Publication Date: 2014.02.18 IND TECH RES INST
  • US8650692B2 patent drawing
  • US8650692B2 patent drawing
  • US8650692B2 patent drawing

AI summary

A cleaning device with electrostatic sheet auto rolling, comprising: a frame; a power gear set; a roller set, having a first roller, a second roller, a paper feeder roller; and a paper collector roller, arranged axially parallel with each other; and a drive shaft; wherein, the paper feeder roller is coaxially received inside a roller of paper; the first, the second and the paper collector rollers are driven to rotate by the power gear set; the paper collector roller is disposed radial to the paper feeder roller at a side thereof while enabling the first and the second rollers to be arranged therebetween; the drive shaft is enabled to move relative to the frame and perpendicular to the axial direction of the drive shaft; the drive shaft is arranged protruding out of the frame; and the drive shaft, the first and the second rollers are arranged parallel to each other.