Mobile surface cleaning machine
First Claim
1. Surface cleaning machine comprising in combination:
- a frame moveable longitudinally in a forward movement direction about the surface to be cleaned;
a plurality of rotary disc brushes carried by the frame rotatable about spaced, vertical axes, with the rotary disc brushes being in a longitudinally staggered arrangement and having a longitudinal extent; and
a one piece squeegee having a U-shape including first and second legs integrally extending from the opposite ends of a central portion, with the first and second legs having free ends, with the squeegee having a longitudinal extent greater than the longitudinal extent of the brushes, with the brushes located generally longitudinally coextensive and intermediate the first and second legs of the squeegee and with the free ends of the first and second legs of the squeegee extending longitudinally forward of the longitudinal extent of the brushes.
1 Assignment
0 Petitions
Accused Products
Abstract
A surface cleaning machine (10) is disclosed in the preferred form as a combination sweeping-scrubbing apparatus including a sweeping brush (18) for sweeping debris into a hopper (20) and a one piece squeegee (112) for picking up solution after four staggered, disc brushes (122). The squeegee (112) is U-shaped having a longitudinal extent greater than that of the disc brushes (122) located intermediate the legs (124) of the squeegee (112). The drive wheel (16) is located in front of the disc brushes (122), the squeegee (112) and the solution applying means (128). The squeegee (12) is raised and lowered relative to the frame (12) by an actuator (104) which pivots an L-shaped member (94), the leg (96) of which abuts against and pivots a lever (84) interconnected to the mount (62) for the squeegee (112) by a turnbuckle (88). The hopper (20) is raised and simultaneously tilted by a single cylinder (30 ) which pivots the upper arm (24) of a parallelogram including a lower arm (36). The hopper (20) is pivotally mounted to an end of a hopper arm (48), the opposite end of which is pivotally mounted to the end of the upper arm (24), and is further pivotally mounted to the end of the lower arm (36). The hopper (20) is simultaneously tilted at a generally constant dump angle as the hopper (20) is raised from a lowered position in a horizontal debris collecting condition to a raised position with the hopper (20) in a dumping condition.
-
Citations
20 Claims
-
1. Surface cleaning machine comprising in combination:
- a frame moveable longitudinally in a forward movement direction about the surface to be cleaned;
a plurality of rotary disc brushes carried by the frame rotatable about spaced, vertical axes, with the rotary disc brushes being in a longitudinally staggered arrangement and having a longitudinal extent; and
a one piece squeegee having a U-shape including first and second legs integrally extending from the opposite ends of a central portion, with the first and second legs having free ends, with the squeegee having a longitudinal extent greater than the longitudinal extent of the brushes, with the brushes located generally longitudinally coextensive and intermediate the first and second legs of the squeegee and with the free ends of the first and second legs of the squeegee extending longitudinally forward of the longitudinal extent of the brushes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a frame moveable longitudinally in a forward movement direction about the surface to be cleaned;
-
10. Surface cleaning machine comprising, in combination:
- a frame movable longitudinally in a forward movement direction about the surface to be cleaned;
a plurality of brushes carried by the frame in a longitudinally staggered arrangement and having a longitudinal extent;
a one piece squeegee having a U-shape including first and second legs integrally extending from the opposite ends of a central portion, with the first and second legs having free ends, with the squeegee having a longitudinal extent greater than the longitudinal extent of the brushes;
means carried by the frame independent of the brushes for raising and lowering the one piece squeegee relative to the frame with the brushes located generally longitudinally coextensive and intermediate the first and second legs of the squeegee and with the free ends of the first and second legs of the squeegee extending longitudinally forward of the longitudinal extent of the brushes; and
a drive wheel carried by the frame and providing mobility about the surface to be cleaned, with the brushes being generally intermediate the drive wheel and the squeegee such that passage of the drive wheel is on the surface prior to the brushes. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
- a frame movable longitudinally in a forward movement direction about the surface to be cleaned;
-
18. Surface cleaning machine comprising, in combination:
- a frame movable about the surface to be cleaned;
a plurality of brushes carried by the frame in a longitudinally staggered arrangement and having a longitudinal extent; and
a one piece squeegee having a U-shape including first and second legs integrally extending from the opposite ends of a central portion, with the first and second legs having free ends, with the squeegee having a longitudinal extent greater than the longitudinal extent of the brushes, with the brushes located intermediate the first and second legs of the squeegee and with the free ends of the first and second legs of the squeegee extending beyond the longitudinal extent of the brushes; and
means for raising and lowering the one piece squeegee relative to the frame comprising, in combination;
a lever having a first end and a second end, with the first end of the lever being pivotally mounted to the frame about a lever axis;
means for connecting the one piece squeegee to the second end of the lever for movement therewith;
a first leg having a first end and a second end, with the first end of the leg being pivotally mounted to the frame about a leg axis, with the second end of the first leg abutting with the lever intermediate the first and second ends; and
means for pivoting the first leg about the leg axis. - View Dependent Claims (19, 20)
- a frame movable about the surface to be cleaned;
Specification