• US 20190029409A1
  • Filed: 07/25/2017
  • Published: 01/31/2019
  • Est. Priority Date: 07/25/2017
  • Status: Active Grant
First Claim
Patent Images

1. A cleaning roller mountable to a cleaning robot, the cleaning roller comprising:

  • a sheath comprising a shell, an outer diameter of the shell tapering from a first end portion of the sheath and a second end portion of the sheath toward a center of the roller; and

    a core extending from a first end portion of the core to a second end portion of the core along an axis of rotation of the roller, the first and second end portions of the core being mountable to the robot for rotating about the axis of rotation, wherein the core includes a central portion interlocked with the sheath to rotationally couple the core to the sheath and inhibit relative translation of the sheath and the core along the axis of rotation,wherein an inner surface of the sheath and an outer surface of the core define an air gap therebetween, the air gap extending from the central portion of the core longitudinally along the axis of rotation toward the first end portion or the second end portion of the core.

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