Floor cleaning apparatus

Patent metadata

Field	Value
Publication number	US-9675228-B2
Application number	US-201414300739-A
Country	US
Kind code	B2
Filing date	Jun 10, 2014
Priority date	Jul 26, 2010
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

A floor cleaning apparatus is provided, including a dirt collection device for picking up dirty liquid from a floor surface to be cleaned as well as a dirty liquid tank, into which the dirty liquid can be transferred. In order to provide a floor cleaning apparatus of this type, which can be handled in a more user-friendly manner, it is proposed that the floor cleaning apparatus has a tank rinsing mechanism with at least one rinsing line, which includes at least one inlet opening for rinsing liquid, which can be provided for the tank rinsing mechanism, as well as at least one outlet opening for delivering rinsing liquid into an interior of the dirty liquid tank.

First claim

The invention claimed is:

1. A floor cleaning apparatus, comprising a dirt collection device for picking up a dirty liquid from a floor surface to be cleaned as well as a dirty liquid tank, into which the dirty liquid is transferable,
wherein the floor cleaning apparatus has a tank rinsing mechanism with at least one rinsing line, which comprises at least one inlet opening for rinsing liquid to be supplied to the tank rinsing mechanism, and a plurality of outlet openings for delivering rinsing liquid to an interior of the dirty liquid tank, wherein rinsing liquid leaving the plurality of outlet openings is directed onto at least one internal side wall of the dirty liquid tank,
wherein the arrangement of outlet openings is annular, and
wherein the outlet openings in each case are arranged in a spacing from internal side walls of the dirty liquid tank, the rinsing liquid in each case leaving the outlet openings radially outwardly, with respect to the annular arrangement, and towards the at least one internal side wall.

2. The floor cleaning apparatus according to claim 1 , wherein the plurality of outlet openings is arranged on a cover wall of the dirty liquid tank.

3. The floor cleaning apparatus according to claim 1 , wherein the at least one rinsing line has nozzles, each comprising an outlet opening.

4. The floor cleaning apparatus according to claim 3 , wherein the nozzles are fan nozzles.

5. The floor cleaning apparatus according to claim 1 , wherein the outlet openings are arranged on a common rinsing line.

6. The floor cleaning apparatus according to claim 1 , wherein the tank rinsing mechanism is fixed to the floor cleaning apparatus.

7. The floor cleaning apparatus according to claim 1 , wherein there is formed in a wall of the dirty liquid tank at least one material recess, through which the at least one rinsing line is guided into the interior of the dirty liquid tank.

8. The floor cleaning apparatus according to claim 1 , wherein the at least one rinsing line has a delivery portion, which is arranged in the interior of the dirty liquid tank and comprises the plurality of outlet openings, as well as a feed portion, which has a flow connection to the delivery portion and which comprises the at least one inlet opening, and wherein the at least one inlet opening is arranged outside the dirty liquid tank.

9. The floor cleaning apparatus according to claim 8 , wherein the delivery portion is held on a wall of the dirty liquid tank.

10. The floor cleaning apparatus according to claim 9 , wherein the wall is a cover wall of the dirty liquid tank.

11. The floor cleaning apparatus according to claim 9 , wherein the delivery portion is held on the wall so as to be movable.

12. The floor cleaning apparatus according to claim 11 , wherein the delivery portion is mounted on the wall so as to be rotatable.

13. The floor cleaning apparatus according to claim 8 , wherein the delivery portion comprises a self-enclosed delivery line, on which the plurality of outlet openings is arranged.

14. The floor cleaning apparatus according to claim 8 , wherein the delivery portion comprises at least one rinsing arm, which has a flow connection at a first end to the feed portion and has at least one outlet opening at a second end.

15. The floor cleaning apparatus according to claim 1 , wherein the at least one rinsing line runs, at least in portions, in a wall of the dirty liquid tank forming a hollow body.

16. The floor cleaning apparatus according to claim 1 , wherein the dirty liquid tank comprises a tank opening and a covering, which covering is transferable from a closure position, in which the tank opening is closed, into an opened position, in which the tank opening is exposed, and vice versa.

17. The floor cleaning apparatus according to claim 16 , wherein the covering comprises the tank rinsing mechanism.

18. The floor cleaning apparatus according to claim 16 , wherein the covering is a lid of the dirty liquid tank that is adapted to be folded up and down.

19. The floor cleaning apparatus according to claim 1 , wherein at least one inlet opening is arranged on an outer side of the floor cleaning apparatus.

20. The floor cleaning apparatus according to claim 1 , wherein the at least one internal wall is a side wall of the dirty liquid tank.

21. The floor cleaning apparatus according to claim 20 , wherein the tank rinsing mechanism is adapted to clean side walls of the dirty liquid tank along an entire inner periphery of the dirty liquid tank.

22. The floor cleaning apparatus according to claim 1 , wherein at least one inlet opening is formed by a coupling member, which is arranged on the inlet side on the at least one rinsing line, of a coupling for liquid lines.

23. The floor cleaning apparatus according to claim 1 , wherein the floor cleaning apparatus comprises a rinsing liquid tank as well as a pump unit, which is connected to the at least one rinsing line and with which rinsing liquid is conveyable out of the rinsing liquid tank through at least one inlet opening into the at least one rinsing line.

24. The floor cleaning apparatus according to claim 23 , wherein the floor cleaning apparatus comprises a liquid delivery line connected to an outlet of the pump unit, by way of which rinsing liquid can be applied to the floor surface to be cleaned.

25. A floor cleaning apparatus, comprising a dirt collection device for picking up a dirty liquid from a floor surface to be cleaned as well as a dirty liquid tank, into which the dirty liquid is transferable,
wherein the floor cleaning apparatus has a tank rinsing mechanism with at least one rinsing line, which comprises at least one inlet opening for rinsing liquid to be supplied to the tank rinsing mechanism, and a plurality of outlet openings for delivering rinsing liquid to an interior of the dirty liquid tank, wherein rinsing liquid leaving the plurality of outlet openings is directed onto at least one internal side wall of the dirty liquid tank,
wherein the arrangement of outlet openings is annular, and
wherein the plurality of outlet openings is arranged along a periphery of the internal wall, the rinsing liquid in each case leaving the plurality of outlet openings radially inwardly, with respect to the periphery of the internal side wall, and towards the at least one internal side wall.

Assignees

• Kaercher Gmbh & Co Kg Alfred

Inventors

• Troff Gilles
• Roppelt Brunhold
• Schaefer Rainer

Classifications

• A47L11/4016

  specially adapted for collecting fluids · CPC title

• A47L11/30 Primary

  by suction · CPC title

• A47L11/28 Primary

  Floor-scrubbing machines, motor-driven (A47L11/29 takes precedence) · CPC title

• A47L11/4025

  Means for emptying · CPC title