Combination edger and grinder for floors
AssigneeNational Carpet Equipment, Inc.
InventorMartin L. Anderson
Life of this patent
Estimating the term…
Abstract
A combined floor edger and grinder having a grinding disk which can be adjusted from engaging the floor while flat to engaging the floor along a front, back or side edge of the disk, depending on the height adjustment of the wheels on either side of the frame. The wheels, shroud and handle can also be adjustable relative to the frame for moving the frame straight back and forth or at an angle such that with the disk adjusted to engage the floor on one side of the frame the wheels and handle can be adjusted such that they are angled with respect to a wall for use as an edger whereby a user can push the device along the edge of a wall in a straight line while edging. The shroud and disk sizes may be easily changed for different jobs. The shroud can be open or close ended.
Claims10
A floor grinding machine for grinding and edging floors comprising:
- a frame having a motor mounted thereon,
- a nose attached to and extending in front of the frame,
- a disk attached to the front of the nose and resting on the floor, the disk rotated by a mechanical connection along the nose to the motor, with the disk being the only floor engaging support at the front of the floor grinding machine,
- a pair of wheels connected to the rear portion of the frame, one wheel on a first side of the frame and a second wheel on a second side of the frame, each wheel independently having a height adjustment mechanism for adjusting the height, of the wheel relative to the frame, such that by adjusting the height the engagement point of the disk to the floor changes position, the disk being flat on the floor when the base of both wheels and the base of the disk are at the same height relative to the frame,
- the wheels are mounted on cylinders, each having a plurality of flat portions thereon, which are pivotally attached to the frame by engaging a respective height adjustment tube attached to the frame such that the each wheel can be fixed at any of a plurality of selected angles relative to the frame by a T-bolt extending through the height adjustment tube and engaging a corresponding one of the flat portions of the cylinder,
- a handle attached to the frame for guiding and propelling the floor grinding machine along the floor.
Dependencies are inferred from the claim text.