Floor Vacuum Suction Nozzle Multi-Axis Mounting for Uneven Surfaces

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing automatic floor cleaners face challenges in efficiently picking up large particles of dirt due to rigid or improperly mounted suction nozzles, which can lead to obstruction or inadequate dirt collection, especially when navigating uneven surfaces or thresholds.

Innovation Solution

A suction nozzle mounted on a floor vacuum cleaner with a journal and guide arrangement allowing tilting, pivoting, and vertical movement but preventing movement in the longitudinal direction, providing three degrees of freedom and optional transverse movement, along with resilient elements to maintain optimal positioning and prevent sticking or digging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the suction nozzle is rigidly attached to the chassis, then the spacing from the floor surface remains stable, but the vacuum cleaner cannot navigate uneven surfaces or thresholds without obstruction

Engineering Contradiction:

Improveability to navigate uneven surfacesVSAvoidstable spacing from floor surface

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The suction nozzle is made movable relative to the chassis through a mounting arrangement that allows vertical movement and tilting. The nozzle can dynamically adjust its position and orientation in response to uneven surfaces, thresholds, and obstacles while maintaining effective cleaning contact through spring elements that provide restoring force.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the suction nozzle is arranged to be vertically movable, then the vacuum cleaner can navigate thresholds and uneven surfaces, but the spacing becomes too small or too great reducing airflow efficiency

Engineering Contradiction:

Improveability to navigate thresholdsVSAvoidairflow efficiency for dirt pickup

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The mounting arrangement includes spring elements that maintain optimal spacing between the suction nozzle and floor surface through elastic deformation. The springs allow vertical movement to accommodate thresholds while the restoring force continuously adjusts the nozzle position to maintain effective airflow spacing for efficient dirt pickup.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The spring elements act as cushioning elements that preemptively absorb shocks and variations in floor surface height. By providing elastic compliance before contact with obstacles or uneven surfaces, the system maintains stable spacing and airflow efficiency while navigating thresholds and irregularities.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Adaptability or versatility

If the suction nozzle is pivotably mounted to allow tilting, then the vacuum cleaner can adapt to uneven surfaces, but large particles of material can impede the pick-up at the suction nozzle

Engineering Contradiction:

Improveability to adapt to uneven surfacesVSAvoidimpediment to large particle pickup

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The mounting arrangement provides multiple degrees of freedom including vertical movement, tilting, and pivoting simultaneously. This multi-functional capability allows the suction nozzle to adapt to various floor conditions while maintaining optimal orientation for particle pickup, preventing large particles from impeding collection through coordinated multi-axis adjustment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240225388A9Floor cleaner with a movably mounted suction nozzle

Publication Date: 2024.07.11 BSH HAUSGERATE GMBH

AI summary

A floor vacuum cleaner for cleaning a floor surface has a chassis with a chassis frame for traveling over the floor surface. A suction nozzle aspirates an airflow in the region of the floor surface. The suction nozzle is mounted relative to the chassis in the direction of travel to the front left and front right in each case by way of a mounting arrangement formed of a journal and a guide. The mounting arrangement allows a tilting of the suction nozzle about the journals, a rotation of the suction nozzle about a longitudinal axis, and a vertical movement of the suction nozzle, but a movement of the suction nozzle in the longitudinal direction of the chassis is prevented.