Surface cleaning machine having a wetting device
First Claim
1. A surface cleaning machine, comprising:
- at least one cleaning roller;
a drive device for rotary driving of the at least one cleaning roller,a distributor for distributing cleaning liquid to the at least one cleaning roller,a wetting device for applying the cleaning liquid to the at least one cleaning roller, anda suction unit arrangement for generating a suction stream, which is fluidically connected to at least one suction duct and at least one suction nozzle that is associated with the at least one cleaning roller,wherein the wetting device includes at least one pressure-controlled switch that, in an open position, opens a fluid path for cleaning liquid to the at least one cleaning roller and, in a closed position, shuts off the fluid path,wherein the at least one pressure-controlled switch is coupled to the at least one suction duct in a manner activated by pressure, wherein, in the event of the application of a negative pressure brought about by a suction stream in the at least one suction duct, the at least one pressure-controlled switch at least one of (i) moves into the open position and (ii) maintains the open position, andwherein the distributor is arranged downstream of the at least one pressure-controlled switch and is fluidically connected to the fluid path, and wherein the distributor has an outlet opening device that is arranged and formed such that, depending on an angular position of the distributor in relation to the direction of gravity, cleaning liquid flows or does not flow out of the distributor to the at least one cleaning roller.
2 Assignments
0 Petitions
Accused Products
Abstract
A surface cleaning machine including at least one cleaning roller, a drive device for rotary driving of the at least one cleaning roller, a wetting device for applying cleaning liquid to the at least one cleaning roller, and a suction unit arrangement for generating a suction stream is provided. The suction unit arrangement is fluidically connected to at least one suction duct and at least one suction nozzle that is associated with the at least one cleaning roller. The wetting device includes at least one pressure-controlled switch that opens a fluid path for cleaning liquid to the at least one cleaning roller and shuts off the fluid path, and the at least one pressure-controlled switch is coupled to the at least one suction duct, wherein a suction stream in the at least one suction duct moves the pressure-controlled switch into the open position and/or maintains the open position.
33 Citations
22 Claims
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1. A surface cleaning machine, comprising:
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at least one cleaning roller; a drive device for rotary driving of the at least one cleaning roller, a distributor for distributing cleaning liquid to the at least one cleaning roller, a wetting device for applying the cleaning liquid to the at least one cleaning roller, and a suction unit arrangement for generating a suction stream, which is fluidically connected to at least one suction duct and at least one suction nozzle that is associated with the at least one cleaning roller, wherein the wetting device includes at least one pressure-controlled switch that, in an open position, opens a fluid path for cleaning liquid to the at least one cleaning roller and, in a closed position, shuts off the fluid path, wherein the at least one pressure-controlled switch is coupled to the at least one suction duct in a manner activated by pressure, wherein, in the event of the application of a negative pressure brought about by a suction stream in the at least one suction duct, the at least one pressure-controlled switch at least one of (i) moves into the open position and (ii) maintains the open position, and wherein the distributor is arranged downstream of the at least one pressure-controlled switch and is fluidically connected to the fluid path, and wherein the distributor has an outlet opening device that is arranged and formed such that, depending on an angular position of the distributor in relation to the direction of gravity, cleaning liquid flows or does not flow out of the distributor to the at least one cleaning roller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A surface cleaning machine, comprising:
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at least one cleaning roller; a drive device for rotary driving of the at least one cleaning roller, a distributor for distributing cleaning liquid to the at least one cleaning roller, a wetting device for applying the cleaning liquid to the at least one cleaning roller, and a suction unit arrangement for generating a suction stream, which is fluidically connected to at least one suction duct and at least one suction nozzle that is associated with the at least one cleaning roller, wherein the wetting device includes at least one pressure-controlled switch that, in an open position, opens a fluid path for cleaning liquid to the at least one cleaning roller and, in a closed position, shuts off the fluid path, wherein the at least one pressure-controlled switch is coupled to the at least one suction duct in a manner activated by pressure, wherein, in the event of the application of a negative pressure brought about by a suction stream in the at least one suction duct, the at least one pressure-controlled switch at least one of (i) moves into the open position and (ii) maintains the open position, and wherein the distributor is arranged downstream of the at least one pressure-controlled switch and is fluidically connected to the fluid path, wherein the distributor includes at least one channel or is formed by at least one channel, the at least one channel having a half-shell shape.
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Specification