Multi-roller surface cleaner systems, methods, and devices with linearly adjustable floating rollers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vacuum cleaners face challenges in efficiently removing both large and small debris while maintaining optimal suction pressure, particularly when encountering obstacles like large debris that can disrupt the cleaning process.
Innovation Solution
A multi-roller surface cleaning head with a motor-driven primary brushroll and a dynamically adjustable secondary roller that lifts over large debris and returns to maintain suction pressure, utilizing a belt-drive powertrain system and friction-driven rotation for efficient debris removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single motor-driven brushroll is used for debris removal, then small debris can be effectively removed, but large debris cannot be efficiently handled and suction pressure is disrupted
Solution Approach 1:
The cleaning head is divided into two independent roller systems: a primary motor-driven brushroll for small debris and a secondary friction-driven roller for large debris. Each roller operates independently with its own mounting mechanism, allowing the system to handle different debris sizes simultaneously without interfering with suction pressure stability.
Solution Approach 2:
The secondary roller is mounted on a dynamic floating mechanism with linear slots that allow it to adjust its position vertically. This dynamic mounting allows the roller to lift over large debris obstacles while maintaining contact with the surface for small debris, adapting to varying surface conditions without compromising suction pressure.
2Adaptability or versatility
If a floating secondary roller is added to handle large debris, then debris removal capability is improved, but device complexity increases
Solution Approach 1:
The secondary roller is designed as a self-adjusting floating mechanism that automatically adapts to surface conditions. The linear slots in the mounting bracket allow the roller to self-position vertically based on debris size without requiring external control systems, sensors, or complex actuation mechanisms, thereby adding functionality while minimizing complexity.
Solution Approach 2:
The secondary roller serves multiple functions: it agitates large debris for ingestion, maintains surface contact for small debris, and adapts to varying obstacle heights. This multi-functional design consolidates what could have been multiple separate mechanisms into a single versatile component, reducing overall system complexity.
3Ease of operation
If the secondary roller is motor-driven, then rotation control is improved, but energy consumption increases
Solution Approach 1:
The secondary roller is designed to be friction-driven by the movement of the cleaning head itself, eliminating the need for a separate motor. As the cleaning head moves across the surface, friction between the roller and surface automatically rotates the secondary roller, providing rotation control through passive mechanical means rather than active electrical power.
Solution Approach 2:
Friction acts as the intermediary mechanism that converts the forward motion of the cleaning head into rotational motion of the secondary roller. This friction-driven approach transfers energy from the primary drive system through surface contact, avoiding the need for an additional motor while maintaining effective roller rotation for debris agitation.
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 system effectively removes both large and small debris without compromising suction pressure, enhancing cleaning efficiency and adaptability to various surface conditions.
Implementation Method 1
the floating secondary roller has a dynamically adjustable roller height and, thus, automatically lifts when traversing large debris and subsequently drops under the force of gravity to maintain suction pressure when traversing small debris
Implementation Method 2
For friction-driven configurations, frictional forces generated by the target surface drive rotation of the floating secondary roller
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
Presented are multi-roller surface cleaning heads with linearly adjustable floating rollers, methods for making/using such cleaning heads, and vacuum-based surface cleaning systems with such cleaning heads. A surface cleaning head includes a main housing with first and second linear pin slots, a nozzle inlet that ingests debris from a surface, and a connector port that couples with a fluid conduit to thereby fluidly connect the cleaning head to a suction device. A first roller is rotatably attached to the main housing, interposed between the nozzle inlet and connector port. A second roller is rotatably attached to the main housing parallel to the first roller. The second roller includes a roller shaft with first and second mounting pins projecting from first and second ends, respectively, of the roller shaft and slidably mounted in the first and second linear pin slots, respectively, such that the second roller floats in the main housing.