Floor treatment machines
First Claim
Patent Images
1. A floor treating machine comprising in combination:
- a chassis;
a drive element within said chassis;
means for rotating said drive element only about a vertical axis passing through said chassis;
a brush mounting member adjacent said drive element and jointly rotatable therewith, said brush mounting member having a substantially horizontal flange provided with an upper and a lower side;
a plurality of resilient elements carried on said drive element engaging said brush mounting member on said upper and lower sides thereof and suspending said brush mounting member on said drive element for limited rocking of said brush mounting member relative to said drive element; and
a brush fixed to said brush mounting member and jointly displaceable therewith, whereby said brush rotates about the vertical axis passing through the chassis while rocking about the axis so as to maximize engagement of said brush with a floor surface.
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Abstract
A floor treatment machine of the rotary brush type in which, in operation, the weight of the machine is, to at least a significant extent, supported by the rotary brush or brushes, in which a brush mounting member is flexibly suspended between resilient elements for limited universal movement.
17 Citations
14 Claims
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1. A floor treating machine comprising in combination:
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a chassis; a drive element within said chassis; means for rotating said drive element only about a vertical axis passing through said chassis; a brush mounting member adjacent said drive element and jointly rotatable therewith, said brush mounting member having a substantially horizontal flange provided with an upper and a lower side; a plurality of resilient elements carried on said drive element engaging said brush mounting member on said upper and lower sides thereof and suspending said brush mounting member on said drive element for limited rocking of said brush mounting member relative to said drive element; and a brush fixed to said brush mounting member and jointly displaceable therewith, whereby said brush rotates about the vertical axis passing through the chassis while rocking about the axis so as to maximize engagement of said brush with a floor surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 14)
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- 9. The machine of claim 9, the hollow shaft having at least two portions, one portion extending generally along the vertical axis and the other portion extending radially outwardly and generally perpendicularly from both the vertical axis and the one portion, the hollow shaft being connected to the drive pulley through the other portion.
Specification