Cleaning Sheet Brush Layout for Trapping Dust Between Gaps

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Solution Overview

Problem

Conventional cleaning sheets with belt-like brushes fail to effectively trap dirt and dust between brush parts, leading to incomplete cleaning due to gaps between the brushes.

Innovation Solution

A cleaning sheet design featuring multiple brush part lines intersecting with each other, with planar seal parts of varying sizes and shapes to form brush parts around these seals, ensuring effective dirt and dust trapping by alternating brush positions and varying fiber lengths for enhanced scraping and trapping capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If belt-like brushes are formed by cutting fibers continuously along linear fusion-bonding parts, then brush structure is formed, but dirt and dust cannot be trapped sufficiently due to gaps between belt-like brushes

Engineering Contradiction:
Improvedirt and dust trapping capabilityVSAvoidbrush structure configuration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The continuous belt-like brush is segmented into multiple discrete brush parts arranged in intersecting lines. This segmentation creates a grid pattern that eliminates the continuous gaps of the belt-like structure, allowing brush parts to be positioned at multiple intersections to trap dirt and dust more effectively throughout the cleaning sheet area.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The brush structure transitions from a one-dimensional belt-like arrangement to a two-dimensional grid pattern formed by intersecting brush part lines. This dimensional change allows brush parts to be distributed across the surface in both directions, creating multiple trapping zones that prevent dirt and dust from passing through gaps.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If planar seal parts of varying sizes are used to join sheet substrate and fibers, then brush parts with different fiber lengths are formed, but manufacturing complexity increases

Engineering Contradiction:
Improvescraping and trapping capabilityVSAvoidseal part configuration
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

Planar seal parts are designed with varying sizes and shapes at different locations to create brush parts with different fiber lengths where needed. This local quality variation allows short fibers to be concentrated in areas requiring scraping action while long fibers are positioned for trapping, optimizing the cleaning sheet's performance in different zones.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The size and shape parameters of planar seal parts are varied to control the length of fibers extending from the sheet substrate. By changing these parameters, the invention creates brush parts with different fiber lengths that perform different functions - short fibers for scraping and long fibers for trapping dirt and dust.

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 design ensures thorough cleaning by trapping dirt and dust between and between adjacent brush parts, with short fibers scraping and long fibers trapping, achieving effective removal of fine particles.

Implementation Method 1

first seal part groups in which each group is constituted by multiple planar seal parts disposed intermittently along the fiber direction of the sheet-like fibers, and second seal part groups in which each group is constituted by planar seal parts disposed intermittently on the positions intersecting with the planar seal parts of the first seal part groups, are disposed in an alternate manner in a direction intersecting with the fiber direction of the sheet-like fibers to join the sheet substrate and the sheet-like fibers

Methodology Applied
Scientific EffectThermal bonding:

Data Source

PatentUS8617685B2Cleaning sheet
Publication Date: 2013.12.31 MR KIKUO YAMADA
  • US8617685B2 patent drawing
  • US8617685B2 patent drawing
  • US8617685B2 patent drawing

AI summary

Conventional cleaning sheets having brush parts provided on a surface of substratum sheet have been satisfactory in the trapping of dirt or dust at the brush parts but unsatisfactory in the trapping of dirt or dust at areas between brush parts where no brush is present. It is intended to provide a cleaning sheet with which any dirt or dust having sneaked through areas between brush parts and remaining untrapped can be trapped by brush parts provided in alternately positioning relationship adjacent to the brush parts, thereby attaining effective cleaning. The cleaning sheet comprises a sheet substratum and, disposed on at least one major surface thereof, multiple brush part lines each provided with multiple brush parts arranged intermittently along one direction of the sheet substratum, the multiple brush part lines arranged in a direction intersecting with the one direction, and that mutually adjacent brush part lines are provided so that the respective brush parts are alternately positioned.