Floor cleaning machine and method for operating a floor cleaning machine

Abstract

The invention relates to a floor cleaning machine, including a floor head, at least one cleaning roller, which is arranged on the floor head, a tank device, which is arranged on the floor head, and at least one sweeping element, which is associated with the at least one cleaning roller. To provide a floor cleaning machine of that kind, which has an optimized coarse dirt pickup function, the at least one sweeping element is arranged on the tank device and that at least a partial region of the tank device on which the at least one sweeping element is arranged is movable relative to the floor head in a cleaning operation.

1 . A floor cleaning machine, comprising a floor head, at least one cleaning roller, which is arranged on the floor head, a tank device, which is arranged on the floor head, and at least one sweeping element, which is associated with the at least one cleaning roller, wherein the at least one sweeping element is arranged on the tank device and wherein at least a partial region of the tank device on which the at least one sweeping element is arranged is movable relative to the floor head in a cleaning operation. 
     
     
         2 . The floor cleaning machine in accordance with  claim 1 , wherein the at least one sweeping element and the tank device are configured such that the at least one sweeping element is at a defined fixed distance from a floor to be cleaned in a cleaning operation. 
     
     
         3 . The floor cleaning machine in accordance with  claim 2 , wherein the defined distance of a sweeping edge from the floor is greater than zero. 
     
     
         4 . The floor cleaning machine in accordance with  claim 2 , wherein the defined distance with respect to a sweeping edge is smaller than 1.5 mm. 
     
     
         5 . The floor cleaning machine in accordance with  claim 1 , wherein the at least one sweeping element is arranged on a base or on a side wall of the tank device. 
     
     
         6 . The floor cleaning machine in accordance with  claim 1 , wherein arranged on at least one of the at least one sweeping element and the tank device is at least one support element for a floor to be cleaned, which keeps the at least one sweeping element at a defined fixed distance from the floor to be cleaned. 
     
     
         7 . The floor cleaning machine in accordance with  claim 6 , wherein at least one of the following applies:
 the at least one support element is configured as a rib on at least one of the at least one sweeping element and the tank device;   a plurality of support elements are provided;   located between adjacent support elements is a free region, which does not contact the floor to be cleaned;   the support elements are arranged in a row, wherein, in particular, a longitudinal direction of the row is at least approximately parallel to an axis of rotation of the at least one cleaning roller;   the at least one support element is configured as a sliding element or rolling element for the floor to be cleaned.   
     
     
         8 . The floor cleaning machine in accordance with  claim 1 , wherein the tank device or the partial region of the tank device on which the at least one sweeping element is arranged is floatingly mounted on a tank device holder of the floor head. 
     
     
         9 . The floor cleaning machine in accordance with  claim 1 , wherein the tank device or the partial region of the tank device on which the at least one sweeping element is arranged is hangingly mounted on the floor head. 
     
     
         10 . The floor cleaning machine in accordance with  claim 1 , wherein the tank device or the partial region of the tank device on which the at least one sweeping element is arranged is mounted on the floor head so as to be movable at least in a z-direction, with at least one of the following:
 the z-direction is oriented transversely to an axis of rotation of the at least one cleaning roller;   the z-direction is oriented transversely and, in particular, at least approximately perpendicularly to a contact plane of the at least one cleaning roller for a floor to be cleaned;   the z-direction is at least approximately parallel to a removal direction of the tank device from the floor head.   
     
     
         11 . The floor cleaning machine in accordance with  claim 10 , wherein the tank device or the partial region of the tank device on which the at least one sweeping element is arranged is mounted on the floor head so as to be movable in at least one direction transverse to the z-direction. 
     
     
         12 . The floor cleaning machine in accordance with  claim 1 , wherein the at least one sweeping element is arranged and formed such that it feeds dirt particles to the at least one cleaning roller, such dirt particles being entrained by the at least one cleaning roller as a result of the rotation of the at least one cleaning roller. 
     
     
         13 . The floor cleaning machine in accordance with  claim 12 , wherein the tank device is configured as a tank device for dirty fluid. 
     
     
         14 . The floor cleaning machine in accordance with  claim 12 , comprising at least one feed channel for dirty fluid from the at least one cleaning roller to a receiving space of the tank device. 
     
     
         15 . The floor cleaning machine in accordance with  claim 14 , comprising a sealing device, which is arranged on the tank device or the partial region of the tank device on which the at least one sweeping element sits, and which seals the at least one feed channel from an input-coupling element for the at least one feed channel, independently of a position of the tank device or the partial region of the tank device. 
     
     
         16 . The floor cleaning machine in accordance with  claim 15 , wherein the input-coupling element sits on the floor head, with at least one of the following:
 the sealing device is of at least one of movable and elastic configuration;   at least one scraping element for the at least one cleaning roller sits on the input-coupling element;   an opening for the at least one feed channel is arranged on the input-coupling element;   the at least one scraping element forms an opening wall;   the tank device or the partial region of the tank device on which the at least one sweeping element is arranged is movable relative to the input-coupling element in a cleaning operation.   
     
     
         17 . The floor cleaning machine in accordance with  claim 1 , wherein the tank device or the partial region of the tank device on which the at least one sweeping element is arranged is gravity-driven, or is pressed against a floor to be cleaned by a spring device in the direction of a contact plane of the at least one cleaning roller. 
     
     
         18 . The floor cleaning machine in accordance with  claim 1 , comprising a scraping device for scraping dirty fluid from the at least one cleaning roller and for coupling into the tank device. 
     
     
         19 . The floor cleaning machine in accordance with  claim 1 , wherein the at least one cleaning roller has a textile covering, and wherein a scraper of a scraping device penetrates into the textile covering. 
     
     
         20 . The floor cleaning machine in accordance with  claim 1 , wherein the at least one cleaning roller is of two-part configuration and a center drive is provided. 
     
     
         21 . The floor cleaning machine in accordance with  claim 1 , comprising a tank device for cleaning liquid and a supply device for cleaning liquid to at least one of the at least one cleaning roller and a floor to be cleaned. 
     
     
         22 . The floor cleaning machine in accordance with  claim 1 , comprising a pin strip with pins for picking up hair, wherein, in particular, pins abut against or penetrate into a textile covering of the at least one cleaning roller. 
     
     
         23 . The floor cleaning machine in accordance with  claim 1 , wherein the at least one sweeping element is arranged upstream from a scraper for the at least one cleaning roller in relation to a normal direction of rotation of the at least one cleaning roller in a cleaning operation. 
     
     
         24 . The floor cleaning machine in accordance with  claim 1 , comprising a first cleaning roller and a second cleaning roller, which is arranged on the floor head at a distance from the first cleaning roller, with at least one of the following:
 a first axis of rotation of the first cleaning roller and a second axis of rotation of the second cleaning roller are oriented in parallel to one another;   in a normal operating mode of the floor cleaning machine, the first cleaning roller and the second cleaning roller rotate in opposite directions.   
     
     
         25 . The floor cleaning machine in accordance with  claim 24 , wherein at least one of (i) a first sweeping element is associated with the first cleaning roller and (ii) a second sweeping element is associated with the second cleaning roller. 
     
     
         26 . The floor cleaning machine in accordance with  claim 1 , comprising a holding device for a user, which is arranged on the floor head, wherein the floor cleaning machine is of hand-held or hand-guided configuration, and wherein same is operable by a user in a standing position. 
     
     
         27 . The floor cleaning machine in accordance with  claim 1 , having a self-propelled and self-steering configuration. 
     
     
         28 . A method for operating a floor cleaning machine in which a cleaning roller is arranged on a floor head and coarse dirt is fed to the rotating cleaning roller by way of a sweeping element, wherein the sweeping element is arranged on a tank device and the tank device or a partial region of the tank device on which the sweeping element is arranged is movable relative to the floor head in a cleaning operation, and in which there is a defined fixed distance of the sweeping element from the floor in the cleaning operation. 
     
     
         29 . The method in accordance with  claim 28 , wherein the sweeping element is supported on the floor to be cleaned by way of at least one support element, wherein the at least one support element is arranged on at least one of the sweeping element and the tank device.