Mop head and mop

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Solution Overview

Problem

Existing mop heads with fringe-shaped cleaning textiles secured by a flexible loop are insufficiently held in position, especially when cleaning agents reduce static friction or textiles catch on edges, leading to performance issues and reduced service life.

Innovation Solution

Interconnecting cleaning textiles with an integral bond to form a pre-assemblable unit, which is then secured to a cap-shaped carrier body, providing stability and preventing relative movement, with options for ultrasonic welding and pin-based attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If cleaning textiles are secured to the carrier body by a flexible loop, then assembly is simplified, but the cleaning textiles are insufficiently held in position during use

Engineering Contradiction:

Improveassembly simplicityVSAvoidpositioning reliability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent merges the cleaning textiles into a single pre-assembled unit where all textiles are interconnected by integral bonds. This combining approach maintains assembly simplicity while ensuring that all textiles move together as one stable structure, preventing individual textiles from shifting or becoming mispositioned during use.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cleaning textiles are pre-assembled and interconnected by integral bonds before being mounted to the carrier body. This preliminary action of bonding the textiles together ensures they form a stable, unified structure that resists displacement during operation, while still allowing for simple single-step assembly to the carrier.

Inventive Principle:

Principle #10Preliminary action

2Device complexity

If cleaning textiles are held non-positively between the loop and carrier plate, then the structure remains simple, but performance deteriorates when cleaning agents reduce static friction

Engineering Contradiction:

Improvestructural simplicityVSAvoidperformance consistency

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent employs integral bonds that create a unified, cohesive structure among the cleaning textiles. This bonding approach effectively 'curves' or connects the individual textile elements into a single integrated unit, ensuring consistent performance regardless of friction changes from cleaning agents.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent replaces the mechanical friction-based holding system (loop pinching textiles against the carrier plate) with an integral bonding system. This substitution eliminates dependence on static friction, ensuring reliable performance even when cleaning agents reduce friction, while maintaining overall structural simplicity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If cleaning textiles are loosely combined as a bundle, then assembly is easier, but the textiles cannot resist tensile stress when catching on edges

Engineering Contradiction:

Improveassembly easeVSAvoidtensile strength

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

The patent combines all cleaning textiles into a single pre-assembled unit with integral bonds connecting them. This merging transforms the loose bundle into a unified structure that can collectively resist tensile stresses when textiles catch on edges, while still allowing for easy single-step assembly to the carrier body.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cleaning textiles are pre-bonded together in a preliminary assembly step to form a unified unit with sufficient tensile strength. This preliminary bonding action ensures the textiles can withstand operational stresses, while the pre-assembled unit simplifies the final assembly process to a single mounting operation.

Inventive Principle:

Principle #10Preliminary action

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

Ensures reliable positioning and durability of cleaning textiles, maintaining consistent performance even with cleaning agents and edge contact, extending the mop's service life and simplifying assembly.

Implementation Method 1

at least some of the cleaning textiles are interconnected by an integral bond and are combined to form a pre-assemblable unit

Methodology Applied

Scientific EffectIntegral bond:

Implementation Method 2

with options for ultrasonic welding and pin-based attachment

Methodology Applied

Scientific EffectUltrasonic welding: Ultrasonic Vibration

Implementation Method 3

with options for ultrasonic welding and pin-based attachment

Methodology Applied

Scientific EffectPin-based attachment: Mechanical Fastener

Data Source

PatentUS10786135B2Mop head and mop

Publication Date: 2020.09.29 CARL FREUDENBERG KG

AI summary

A mop head includes: fringe-shaped cleaning textiles; and a cap-shaped carrier body. The cleaning textiles are secured to the carrier body. At least some of the cleaning textiles are interconnected by an integral bond and are combined to form a pre-assemblable unit. The pre-assemblable unit and the carrier body are interconnected.