Mobile surface cleaning machine
First Claim
1. Machine for movement along a surface having debris comprising, in combination:
- a frame;
a hopper for holding debris collected from the surface; and
means for raising the hopper relative to the frame from a lowered position with the hopper in a horizontal debris collecting condition to a raised position with the hopper in a dumping condition and for simultaneously tilting the hopper as the hopper is raised from the lowered position to allow dumping of the debris from the hopper at multiple levels above the surface comprising, in combination;
a first arm having a first end pivotally mounted to the frame and a second end;
means for pivoting the first arm relative to the frame about the first end;
means for operatively connecting the hopper to the second end of the first arm for raising and simultaneously tilting the hopper as the first arm is raised relative to the frame by the pivoting means comprising, in combination;
a second arm having a first end pivotally mounted to the frame spaced from the first end of the first arm and having a second end pivotally mounted to the hopper; and
a rotation arm having a first end pivotally mounted to the first arm intermediate the first and second ends and having a second end pivotally mounted to the second arm intermediate the first and second ends.
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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 (112) 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.
58 Citations
20 Claims
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1. Machine for movement along a surface having debris comprising, in combination:
- a frame;
a hopper for holding debris collected from the surface; and
means for raising the hopper relative to the frame from a lowered position with the hopper in a horizontal debris collecting condition to a raised position with the hopper in a dumping condition and for simultaneously tilting the hopper as the hopper is raised from the lowered position to allow dumping of the debris from the hopper at multiple levels above the surface comprising, in combination;
a first arm having a first end pivotally mounted to the frame and a second end;
means for pivoting the first arm relative to the frame about the first end;
means for operatively connecting the hopper to the second end of the first arm for raising and simultaneously tilting the hopper as the first arm is raised relative to the frame by the pivoting means comprising, in combination;
a second arm having a first end pivotally mounted to the frame spaced from the first end of the first arm and having a second end pivotally mounted to the hopper; and
a rotation arm having a first end pivotally mounted to the first arm intermediate the first and second ends and having a second end pivotally mounted to the second arm intermediate the first and second ends. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- a frame;
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10. Machine for movement along a surface having debris comprising, in combination:
- a frame;
a hopper for holding debris collected from the surface; and
means for raising the bopper relative to the frame from a lowered position with the hopper in a horizontal debris collecting condition to a raised position with the hopper in a dumping condition and for simultaneously tilting the hopper as the hopper is raised from the lowered position to allow dumping of the debris from the hopper at multiple levels above the surface comprising, in combination;
a first arm having a first end pivotally mounted to the frame and a second end;
means for pivoting the first arm relative to the frame about the first end;
a hopper arm having a first end pivotally mounted to the second end of the first arm and a second end pivotally mounted to the hopper; and
means for pivotally mounting the hopper about a pivot axis spaced from the second end of the hopper arm and moveable along an arc when the first arm is pivoted relative to the frame. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- a frame;
Specification