Mop Head Textile Assembly with Integral Connection to Prevent Knotting

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Solution Overview

Problem

Existing mop heads with fringe-shaped cleaning textiles are prone to knotting or shifting during use, especially when exposed to cleaning agents or edges, leading to inadequate holding and reduced performance over time.

Innovation Solution

A cap-shaped mop head design with cleaning textiles connected by a material connection, featuring two adjacent connection areas that provide enhanced stability and prevent relative movement, utilizing an ultrasonic welded connection for durability and easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If cleaning textiles are held loosely without connection, then ease of manufacture is improved, but reliability deteriorates as textiles knot or shift during use

Engineering Contradiction:
Improveease of assemblyVSAvoidposition stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The connection system is segmented into multiple discrete connection elements distributed along the cleaning textiles, rather than a single continuous connection. This allows the textiles to be held at multiple fixed positions while maintaining ease of assembly through modular connection pieces

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection elements are pre-positioned and fixed to the cleaning textiles before final assembly with the support body. This preliminary connection ensures the textiles maintain their relative positions throughout assembly and use, preventing knotting and shifting

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If cleaning textiles are connected by flexible bands, then ease of operation is improved for initial assembly, but durability deteriorates when exposed to cleaning agents

Engineering Contradiction:
Improveassembly convenienceVSAvoidservice life
Core Design Contradiction:
Ease of operationVSDuration of action of stationary object

Solution Approach 1:

The connection elements are designed as simple, replaceable components that can be easily manufactured and assembled. While individual connection elements may wear, the modular design allows for easy replacement, ensuring long-term durability of the overall mop head assembly

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The connection system uses materials and designs that maintain their mechanical properties when exposed to cleaning agents. The connection elements are selected to resist degradation from chemicals, heat, and moisture, ensuring consistent performance throughout the service life of the mop

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If cleaning textiles are clamped between loop and support plate, then ease of manufacture is improved, but reliability deteriorates under tensile stress

Engineering Contradiction:
Improveassembly simplicityVSAvoidtensile resistance
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The connection elements integrate multiple functions into a single component: they hold the cleaning textiles together, attach to the support body, and resist tensile forces. This merging of functions into unified connection pieces simplifies assembly while maintaining strength under stress

Inventive Principle:
Principle #5Merging (Combining)

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 mop head maintains reliable positioning and performance over a long period, even with cleaning agents, due to the integral connection of cleaning textiles, ensuring consistent functionality and easy assembly with reduced risk of assembly errors.

Implementation Method 1

utilizing an ultrasonic welded connection for durability and easy assembly

Methodology Applied
Scientific EffectUltrasonic welding: Ultrasonic Vibration

Data Source

PatentEP3474719B1Mop head and mop
Publication Date: 2020.12.09 CARL FREUDENBERG KG
  • EP3474719B1 patent drawingFigure 1
  • EP3474719B1 patent drawingFigure 2

AI summary

The invention relates to a mop comprising a mop head (11) and a stem (12), said mop head (11) having fringe-shaped cleaning textiles (1) and a cap-shaped carrier body (2), and said cleaning textiles (1) being secured to the carrier body (2). At least some of the cleaning textiles (1) are interconnected by an integral bond (3) and combined to form a pre-assemblable unit (4), said pre-assemblable unit (4) and carrier body (2) being interconnected.