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Automatic floor treating apparatus

  • US 4,503,581 A
  • Filed: 03/09/1983
  • Issued: 03/12/1985
  • Est. Priority Date: 03/09/1983
  • Status: Expired due to Fees
First Claim
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1. Apparatus for automatically treating a floor or material on a floor, comprising:

  • a support frame;

    floor treating means carried by said support frame;

    a first set of wheels carried by the support frame for moving said apparatus along a first path of movement;

    a second set of wheels movably supported on the apparatus for movement toward and away from the floor, and oriented to move the apparatus along a second path of movement at a right angle to the first path;

    elevating means for moving the second set of wheels upwardly and downwardly relative to the floor to alternately engage and disengage the first and second sets of wheels with the floor to cause the apparatus to alternately move along the first and second paths of movement;

    first motor means for driving the first set of wheels;

    second motor means for driving the second set of wheels and the elevating means; and

    control means for controlling operation of said first and second motor means and said elevating means, including sensor means at opposite ends and at one side of the apparatus for sensing an obstruction, said control means being operative upon sensing an obstruction at either end of the apparatus, when the first set of wheels are in contact with the floor and the apparatus is moving along said first path of movement, to turn on said second motor means and turn off said first motor means, said second motor means being operatively connected to operate said elevating means to move said second set of wheels into contact with the floor to lift the support frame and first set of wheels from the floor and to drive the second set of wheels to move the apparatus along the second path of movement for a predetermined time, said control means being operative at the end of said predetermined time to elevate said second set of wheels and enable said first set of wheels to contact the floor, and to turn off said second motor means and turn on said first motor means to once again cause said apparatus to move along said first path of movement.

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