Patent ID: 7059004
Filing Date: 2006-06-13
Classification: A47L

Abstract:
1. A floor surface treatment apparatus comprising: a wheeled vehicle for travel over a floor surface, said vehicle having a support for a floor surface treatment unit said support having a central juncture and a rearward end, the support being pivotally connected to said wheeled vehicle at said central juncture of said support for pivotal movement relative to said vehicle; a floor surface treatment unit pivotally carried by the support by pivotally suspending from a pivotal connection for swinging movement relative thereto about a horizontal axis substantially parallel to the floor surface defined by said pivotal connection; an actuator operably attached to said support at said rearward end for effecting rotatable movement of the support relative to said wheeled vehicle; and said support being configured to raise and lower said unit relative to the floor surface, upon pivotal movement of the support relative to said vehicle, through a range of working positions in which the unit maintains a generally vertical orientation relative to the floor surface and is generally in contact therewith and further to a servicing position in which the floor surface treatment unit is swung up and forward relative to said vehicle about said horizontal axis above the floor surface to a position in which the floor surface treatment unit is generally angled relative to the floor surface due to urging of the rearward end by the actuator against the unit.