Patent ID: 7533442

Claim:
A floor cleaning device comprising: a base portion for movement along a surface; a suction nozzle operatively connected to said base portion; a nozzle lifting mechanism operatively connected to said base portion, said nozzle lifting mechanism comprising: a wheel carriage pivotally connected to said base portion; a cam member configured as a slide member movably mounted to one of said base portion and said wheel carriage for slidable movement along same, said cam member positioned between said base portion and said wheel carriage, said cam member having at least one cam portion; a cam follower provided on one of said base portion and said wheel carriage other than where the cam member is mounted; and said base portion including a pedal operatively associated with said cam member, wherein depression of said pedal translationally moves said cam member with respect to said wheel carriage such that the cam portion engages said cam follower to lift said suction nozzle in a first position away from the surface, and depression of said pedal again translationally moves said cam member with respect to said wheel carriage such that said cam portion disengages from said cam follower thereby moving said suction nozzle to a second position closer to the surface than said first position.