×

Floor cleaner

  • US 4,845,797 A
  • Filed: 10/19/1987
  • Issued: 07/11/1989
  • Est. Priority Date: 10/20/1986
  • Status: Expired due to Term
First Claim
Patent Images

1. A floor clean comprising:

  • a casing including a front portion, a central portion, a rear portion, and a respective dust box disposed at said front and at said rear portion,each said respective dust box including an opening;

    a pair of cleaning bodies rotatably mounted to said casing at the central portion thereof, each of said cleaning bodies including a central roll and a plurality of blades comprising elastic material extending from said central roll,each said opening of the dust boxes facing a respective one of said cleaning bodies;

    driven rollers integral with each of said cleaning bodies and disposed, respectively, at opposite ends thereof;

    a pair of rotatable front main wheels swingably mounted to said casing, disposed at said front portion thereof and swingable toward and away from the rear portion of said casing, anda pair of rotatable rear main wheels swingably mounted to said casing, disposed at said rear portion thereof and swingable toward and away from the front portion of said casing;

    rotatable auxiliary wheels swingably mounted to said casing, disposed respectively between one said driven roller integral with one of said cleaning bodies and another said driven roller integral with the other of said driven bodies, and swingable toward the front and rear portions of said casing between a first position in contact with said one driven roller while being out of contact wit said another driven roller and a second position contacting said another driven roller while being out of contact with said one driven roller;

    the outer circumference of said auxiliary wheels extending beyond a plane that extends outside of said casing and tangentially to the outer circumference of said front and said rear main wheels; and

    rotatable idle wheels swingably mounted to said casing,respective ones of said idle wheels disposed between said front main wheels and said one of said cleaning bodies, and between said rear main wheels and said other of said cleaning bodies,said idle wheels disposed between said front main wheels and said one of said cleaning bodies abutting said front main wheels and said one of said cleaning bodies when said front main wheels are swung toward the rear portion of said casing as the cleaner is moved in a forward direction, andsaid idle wheels disposed between said rear main wheels and said another of said cleaning bodies abutting said rear main wheels and said another of said cleaning bodies when said rear main wheels are swung forwardly when the cleaner is moved in a rearward direction opposite said forward direction.

View all claims
  • 11 Assignments
Timeline View
Assignment View
    ×
    ×