Rotating Mop Broom Upper Grip With Locking Wall-Rest Stability

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Solution Overview

Problem

Traditional cleaning brooms with freely rotatable upper handles tend to fall when rested against a wall, necessitating operators to bend down for retrieval, prompting a shift back to fixed handles, which limits ergonomic S-shaped cleaning operations and accessibility.

Innovation Solution

A cleaning broom with a rotating upper handle featuring a knob that can assume two positions: a freely rotating and a locked position, utilizing anti-rotation devices and an elastic interference element to prevent falling, allowing secure resting against a wall without impeding rotation during cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the upper handle is made freely rotatable to enable ergonomic S-shaped cleaning operations, then the ease of operation is improved, but the stability of the handle when rested against a wall deteriorates causing the broom to fall

Engineering Contradiction:
Improveease of S-shaped cleaning operationsVSAvoidstability of handle when rested against wall
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The upper grip is designed to dynamically switch between two states: a rotated position during cleaning operations that allows free rotation for ergonomic S-shaped movements, and a locked position when rested against a wall that prevents rotation and maintains stability. This dynamic state change resolves the contradiction between operational ease and storage stability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the rotational parameter of the upper grip from 'free rotation' during cleaning to 'locked position' during storage. By controlling the rotation angle and position of the upper grip relative to the handle, the system achieves both ergonomic operation and stable resting positions.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If the upper handle is made fixed to prevent falling when rested against a wall, then the stability is improved, but the ease of operation for S-shaped cleaning operations deteriorates

Engineering Contradiction:
Improvestability of handle when rested against wallVSAvoidease of S-shaped cleaning operations
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system transitions from a static fixed handle to a dynamic handle that can switch between locked and rotated states. During cleaning, the upper grip rotates freely to enable ergonomic operations; during storage, it locks to provide stability. This dynamic behavior resolves the contradiction between stability and operational ease.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If a rotating element is added to the upper handle to enable free rotation, then the ease of operation is improved, but the device complexity increases

Engineering Contradiction:
Improveease of rotation during cleaningVSAvoidcomplexity of upper grip mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The upper grip is segmented into distinct functional components: a rotatable knob element, a locking mechanism with anti-rotation devices, and an elastic return mechanism. This segmentation allows each component to perform its specific function independently, simplifying the overall design while achieving the desired rotational and locking capabilities.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The elastic element automatically returns the upper grip to its locked position after rotation, and the anti-rotation devices self-engage to prevent unintended rotation. This self-service mechanism reduces the need for complex control systems and manual intervention, thereby reducing overall device complexity while maintaining operational ease.

Inventive Principle:
Principle #25Self-service

4Stability of the object's composition

If anti-rotation devices are added to lock the upper grip position, then the stability when rested against a wall is improved, but the device complexity increases

Engineering Contradiction:
Improvestability of locked positionVSAvoidcomplexity of locking mechanism
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The elastic element acts as an intermediary that provides the locking force in the locked position and the return force to the rotated position. This simple elastic intermediary replaces complex locking mechanisms, achieving stable positioning without significant increase in device complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables secure resting of the broom against a wall without falling, maintaining ergonomic S-shaped cleaning operations while preventing accidental drops, and allowing easy transition between locked and unlocked positions with minimal operator effort.

Implementation Method 1

said knob, partially hollow, rotating and hinged on a pin solidly joined to the handle; on the inner circumferential surface of said knob there is a distributed series of anti-rotation devices capable of connecting with, in the passage from the first to the second position, corresponding anti-rotation devices on said handle or on said pin

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3897333B1Upper grip of a mop broom equipped with a rotating element
Publication Date: 2022.09.14 TTS CLEANING SRL
  • EP3897333B1 patent drawingFigure 1
  • EP3897333B1 patent drawingFigure 2
  • EP3897333B1 patent drawingFigure 3

AI summary

This invention concerns the upper grip of a cleaning broom with mops, which has a rotating knob on the upper end of a handle, which has a particular functionality.