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OwnerDieter Tremmel, Peter Belkhofer +5inventors
InventorsDieter Tremmel, Peter Belkhofer, Andreas Kistner, Michael Kotz, Christian Neumann, Markus Merkl, Holger Sandner
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The invention relates to an apparatus for floor cleaning, with several wheels 4, 5, 6 being attached to a frame R in such a way that a curve movement about a momentary center MP, MP1, MP2 can be performed and all momentary centers MP, MP1, MP2 form a momentary center axis MA extending substantially transversally to the frame R, and with a cleaning device 24a, 24b being received in the frame R, which cleaning device forms a cleaning surface area RF which is delimited by a circumferential edge. In order to reduce uncleaned residual surfaces when moving along contours it is provided in accordance with the invention that the momentary center axis MA forms at least one point of intersection S1, S2 in a section of the circumferential edge disposed in the zone of the longitudinal side of the frame R.
An apparatus for floor cleaning, with several wheels (4, 6, 7) being attached to a frame (R) in such a way that a curve movement can be performed about a momentary center (MP, MP1, MP2) and all momentary centers (MP, MP1, MP2) form a momentary center axis (MA) extending substantially transversally to the frame (R), and with a cleaning device (3, 17a, 17b, 24, 25) being received in the frame (R), which cleaning device forms a cleaning area which is delimited by a circumferential edge, wherein the momentary center axis (MA) forms at least one point of intersection (S1, S2) with a section of the circumferential edge which is disposed in the zone of the longitudinal side of the frame (R).
An apparatus as claimed in one of the preceding claims, wherein at least two, preferably four, swivelable or steerable wheels (5, 6) are attached to the frame (R).
An apparatus as claimed in one of the preceding claims, wherein two driven wheels (4a, 4b) are arranged on the momentary center axis (MA).
An apparatus as claimed in one of the preceding claims, wherein the cleaning device comprises one, preferably two or three, circular brushes (3, 24, 24a, 24b).
An apparatus as claimed in one of the preceding claims, wherein the cleaning apparatus comprises at least one cleaning roller (25).
An apparatus as claimed in one of the preceding claims, wherein a supply unit (V), which is arranged as an exchangeable module, comprises a tank (15), a receiving device for dirty water and a power supply unit (16).
An apparatus as claimed in one of the preceding claims, wherein the at least one non-steerable wheel (4) is attached to the frame vertically movable relative to the swivel wheels (5, 6).
An apparatus as claimed in one of the preceding claims, wherein a motor (21, 21a, 21b) is provided for driving the at least one driven wheel (4) on the frame (R).
An apparatus as claimed in one of the preceding claims, wherein stop wheels are provided on a brush cover (18).
An apparatus as claimed in one of the preceding claims, wherein the stop wheels are arranged with an axial offset Δy in front of the momentary center axis, with the following applying:
An apparatus as claimed in one of the preceding claims, wherein a housing contour in the zone of the cleaning device is disposed at least over sections on the circumference of a circle imagined about a central momentary center (MP2).
An apparatus as claimed in one of the preceding claims, wherein the at least one point of intersection (S1, S2) is disposed on an outermost lateral section of the circumferential edge preferably projecting beyond the longitudinal side of the frame.
Dependencies are inferred from the claim text.