Wringing device for a mop

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Solution Overview

Problem

Existing wringing devices for flat brooms require complex structures and precise user manipulation to stabilize and insert the mop head, making them difficult to use and manufacture.

Innovation Solution

A wringing device with a perforated wall and tabs extending along the longitudinal axis to guide and stabilize the mop head, allowing easy insertion and preventing rotation, featuring a simpler design that centers the mop head during use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If guide rails and grooves are added to stabilize the mop head, then stability is improved, but device complexity increases

Engineering Contradiction:
ImprovestabilityVSAvoiddevice complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The stabilization function is segmented into two simple opposing tabs that only need to prevent rotation in one direction, rather than using complex guide rails and grooves. Each tab independently provides stabilization, simplifying the overall structure while maintaining effectiveness.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention extracts only the essential stabilization function from the complex guide rail and groove system. By removing unnecessary structural elements and keeping only the critical rotation-preventing tabs, the design achieves stability with minimal complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

2Measurement precision

If complex manipulation is required to align guide rails with grooves, then positioning precision is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvepositioning precisionVSAvoidease of operation
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The tabs are positioned and oriented to automatically guide the mop head into the correct position during insertion. The structure itself performs the alignment function without requiring the user to manually manipulate or align components, making the operation intuitive and effortless.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The tabs are pre-positioned on the wringing basket to create an automatic guiding path. This preliminary structural arrangement ensures that as the user inserts the mop head, the alignment is achieved automatically through the physical constraints provided by the tabs, eliminating the need for complex user manipulation.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If symmetric tabs are used for guidance, then ease of manufacture is improved, but adaptability to different insertion angles deteriorates

Engineering Contradiction:
Improveease of manufactureVSAvoidadaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The tabs are designed with asymmetric positioning and orientation relative to the wringing basket's rotation axis. This asymmetric configuration creates a specific geometric relationship that guides the mop head into the correct alignment during insertion, while still maintaining manufacturing simplicity through the basic tab structure.

Inventive Principle:
Principle #4Asymmetry

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

Facilitates easy and precise insertion of the mop head, improving user experience and manufacturing simplicity while maintaining stability during wringing.

Implementation Method 1

Wringing devices that can be used to wring out a mop held on the pivoting side plates of a flat mop by centrifugal effect

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentEP3923777B1Wringing device for a mop
Publication Date: 2023.08.30 LA BROSSE & DUPONT MAISON
  • EP3923777B1 patent drawingFigure 1~2
  • EP3923777B1 patent drawingFigure 3~4
  • EP3923777B1 patent drawingFigure 5

AI summary

The invention relates to a wringing device (1) comprising: - a wringer basket, - a support for the basket, - a guide device for guiding the basket in rotation relative to the support about a longitudinal axis, the guide device being assembled to the support and to the basket, characterised in that it comprises two tabs (32, 34) opposite each other assembled to the wringer basket and extending along the longitudinal axis from the cavity of the basket to beyond the main opening outside the basket, the tabs being spaced apart from each other in such a way as to: - guide the insertion of two side plates of a mop head between the two tabs when these plates are parallel to the longitudinal axis, - prevent the plates from being rotated about the main axis in at least one direction of rotation relative to the basket when these plates are inserted into the cavity of the basket.