US 2026/0294091 A1 · Autonomous Vacuum Sweeping System Having a Brush Roller with Buffer Zone

Abstract

A cleaning system includes a debris ingestion opening and a brush roller that receives debris through the opening and moves it toward a duct opening for collection. The brush roller has an outer core formed as a first tube and an inner core positioned within the outer core as a second tube. The inner core houses a spring and a ball bearing in contact with each other and further holds a pin and an end tip with a locking mechanism that secures the end tip while the inner core rotates. The pin and end tip remain stationary during rotation of the inner core and ball bearing. The brush roller has flaps on the outer core to move debris and air and has buffer zones with toroidal cavities between the tubes that capture and store fibrous debris, allowing the debris to be suctioned from the buffer zones when the brush roller is near the duct opening.

Claims20

Dependent claims

A cleaning system comprising:

a cleaning head;
a brush roller positioned within the cleaning head and configured to rotate about a central axis, the brush roller comprising:
an outer core, and
a plurality of flaps extending radially outward from the outer core,
wherein a first overall diameter at a central region of the brush roller is greater than a second overall diameter at an end region of the brush roller;
a cavity located at the end region, wherein the cavity is a toroidal structure to receive and store fibrous debris;
a drive pinion coupled to the cleaning head and structured to rotate the brush roller;
and
a guard coupled to the cleaning head and positioned between the drive pinion and the brush roller, the guard structured to block the fibrous debris from entering a space between the drive pinion and the brush roller.

6 more elements

A cleaning system comprising:

a cleaning head;
a brush roller positioned within the cleaning head;
means for receiving and storing fibrous debris that is moved by the brush roller during operation, said means for receiving and storing fibrous debris being positioned at an end region of the brush roller and configured such that, during rotation of the brush roller, fibrous debris is directed into and accumulates within said means;
means for preventing the fibrous debris from contacting stationary surfaces of the cleaning system, said means for preventing being positioned adjacent to said means for receiving and storing fibrous debris;
means for unlocking the brush roller from a cleaning orientation within the cleaning head, said means for unlocking configured to allow the brush roller to be moved from the cleaning orientation to a buffer zone suction orientation;
means for exposing the fibrous debris received to a suction pathway, said means for exposing configured such that, when the brush roller is in the buffer zone suction orientation, the means for receiving and storing fibrous debris is positioned adjacent to a duct opening of the cleaning head;
and
means for suctioning the fibrous debris from the means for receiving and storing fibrous debris into a debris collection compartment, said means for suctioning being operably connected to the duct opening.

5 more elements

Dependencies are inferred from the claim text.

Autonomous Vacuum Sweeping System Having a Brush Roller with Buffer Zone

Life of this patent

Autonomous Vacuum Sweeping System Having a Brush Roller with Buffer Zone

Life of this patent

Abstract

Claims20