Sweeping Roller Rocker Mechanism for Automatic Floor Pressure Adjustment
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Solution Overview
Problem
Existing floor cleaning machines lack an efficient mechanism for automatically adjusting contact pressure of the sweeping roller based on different floor types, leading to suboptimal cleaning results when transitioning between various surfaces.
Innovation Solution
A floor cleaning machine design featuring a rocker and lever system with pivot bearings, where the lever articulates to adjust the sweeping roller's position based on the floor type, allowing for automatic control of contact pressure through a traction drive mechanism, enabling optimized cleaning across different floor surfaces without operator intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed contact pressure mechanism is used, then the structure is simple, but the cleaning performance deteriorates when transitioning between different floor types
Solution Approach 1:
The patent implements a dynamic contact pressure adjustment mechanism where the sweeping roller is mounted on a rocker that can pivot about a pivot axis. The position of the sweeping roller changes dynamically based on the reaction force from the floor surface, allowing automatic adaptation between carpeted and smooth floors without complex electronic controls
Solution Approach 2:
The system uses the reaction force from the floor surface itself to drive the adjustment mechanism. The force generated during cleaning acts on the traction member, which through the lever and deflection element, automatically adjusts the rocker position and sweeping roller contact pressure, eliminating the need for external actuators or sensors
2Productivity
If manual adjustment of sweeping roller position is required, then the mechanism is simple, but the cleaning efficiency deteriorates due to operator intervention
Solution Approach 1:
The cleaning machine automatically adjusts its own sweeping roller position based on real-time feedback from the floor surface reaction force. The system monitors the force during cleaning and self-adjusts the contact pressure and sweeping width without requiring the operator to manually intervene or change settings
Solution Approach 2:
The system incorporates a feedback loop where the reaction force from the floor surface is detected and used to automatically adjust the rocker position. This closed-loop control ensures optimal cleaning performance across different floor types without operator input, as the system continuously adapts based on actual cleaning conditions
3Reliability
If the sweeping roller contact pressure is increased for carpeted floors, then the cleaning performance on carpets improves, but the cleaning performance on smooth floors deteriorates
Solution Approach 1:
The contact pressure is made dynamic rather than fixed. The rocker mechanism allows the sweeping roller to automatically adjust its contact pressure with the floor surface based on the type of floor being cleaned. On carpeted floors, the mechanism increases contact pressure for effective cleaning, while on smooth floors, it reduces pressure to prevent damage and maintain cleaning quality
Solution Approach 2:
The system changes the physical parameter of contact pressure automatically based on floor type detection through the reaction force. By varying this critical parameter in real-time, the system maintains high cleaning performance across diverse floor surfaces including both carpeted and smooth floors
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 machine achieves automatic and efficient cleaning by adjusting contact pressure and sweeping width according to the floor type, ensuring effective cleaning of both carpeted and smooth floors with minimal operator input, enhancing cleaning performance and efficiency.
Implementation Method 1
a traction drive having a traction member for transmitting torque from the motor device to the sweeping roller
Implementation Method 2
a rocker which is arranged at the base via a first pivot bearing for pivotal movement about a first pivot axis
Implementation Method 3
a lever is arranged at the base via a second pivot bearing for pivotal movement about a second pivot axis
Implementation Method 4
a deflection element for the traction member is arranged at the lever, wherein the traction member is guided on the deflection element in the load-side section
Data Source
AI summary
A floor cleaning machine is provided, including a base, a rocker which is arranged at the base via a first pivot bearing for pivotal movement about a first pivot axis, a sweeping roller which is arranged at the rocker via a rotary bearing for rotational movement about a rotary axis, a motor device for rotatably driving the sweeping roller, and a traction drive having a traction member for transmitting torque from the motor device to the sweeping roller, wherein the traction member includes a load-side section, wherein a lever is arranged at the base via a second pivot bearing for pivotal movement about a second pivot axis, wherein the lever is articulated to the rocker, and wherein a deflection element for the traction member is arranged at the lever, wherein the traction member is guided on the deflection element in the load-side section.